# Generated from Verilog2001.g4 by ANTLR 4.8
# encoding: utf-8
from antlr4 import *
from io import StringIO
import sys
if sys.version_info[1] > 5:
	from typing import TextIO
else:
	from typing.io import TextIO


def serializedATN():
    with StringIO() as buf:
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        buf.write("\u0f98\4\2\t\2\4\3\t\3\4\4\t\4\4\5\t\5\4\6\t\6\4\7\t\7")
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        buf.write("\4\24\t\24\4\25\t\25\4\26\t\26\4\27\t\27\4\30\t\30\4\31")
        buf.write("\t\31\4\32\t\32\4\33\t\33\4\34\t\34\4\35\t\35\4\36\t\36")
        buf.write("\4\37\t\37\4 \t \4!\t!\4\"\t\"\4#\t#\4$\t$\4%\t%\4&\t")
        buf.write("&\4\'\t\'\4(\t(\4)\t)\4*\t*\4+\t+\4,\t,\4-\t-\4.\t.\4")
        buf.write("/\t/\4\60\t\60\4\61\t\61\4\62\t\62\4\63\t\63\4\64\t\64")
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        buf.write("\2\u0f60\u0255\3\2\2\2\u0f61\u0f62\7\u00b3\2\2\u0f62\u0257")
        buf.write("\3\2\2\2\u0f63\u0f64\7\u00b3\2\2\u0f64\u0259\3\2\2\2\u0f65")
        buf.write("\u0f66\5\u0236\u011c\2\u0f66\u025b\3\2\2\2\u0f67\u0f68")
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        buf.write("\2\2\u0f6a\u025f\3\2\2\2\u0f6b\u0f6c\5\u0236\u011c\2\u0f6c")
        buf.write("\u0261\3\2\2\2\u0f6d\u0f6e\5\u0236\u011c\2\u0f6e\u0263")
        buf.write("\3\2\2\2\u0f6f\u0f70\5\u0210\u0109\2\u0f70\u0265\3\2\2")
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        buf.write("\u0f77\7\u00b2\2\2\u0f74\u0f75\7\27\2\2\u0f75\u0f76\7")
        buf.write("\u00aa\2\2\u0f76\u0f78\7\30\2\2\u0f77\u0f74\3\2\2\2\u0f77")
        buf.write("\u0f78\3\2\2\2\u0f78\u0f82\3\2\2\2\u0f79\u0f7a\7\7\2\2")
        buf.write("\u0f7a\u0f7e\7\u00b2\2\2\u0f7b\u0f7c\7\27\2\2\u0f7c\u0f7d")
        buf.write("\7\u00aa\2\2\u0f7d\u0f7f\7\30\2\2\u0f7e\u0f7b\3\2\2\2")
        buf.write("\u0f7e\u0f7f\3\2\2\2\u0f7f\u0f81\3\2\2\2\u0f80\u0f79\3")
        buf.write("\2\2\2\u0f81\u0f84\3\2\2\2\u0f82\u0f80\3\2\2\2\u0f82\u0f83")
        buf.write("\3\2\2\2\u0f83\u0269\3\2\2\2\u0f84\u0f82\3\2\2\2\u0f85")
        buf.write("\u0f89\7\u00b1\2\2\u0f86\u0f87\7\27\2\2\u0f87\u0f88\7")
        buf.write("\u00aa\2\2\u0f88\u0f8a\7\30\2\2\u0f89\u0f86\3\2\2\2\u0f89")
        buf.write("\u0f8a\3\2\2\2\u0f8a\u0f94\3\2\2\2\u0f8b\u0f8c\7\7\2\2")
        buf.write("\u0f8c\u0f90\7\u00b1\2\2\u0f8d\u0f8e\7\27\2\2\u0f8e\u0f8f")
        buf.write("\7\u00aa\2\2\u0f8f\u0f91\7\30\2\2\u0f90\u0f8d\3\2\2\2")
        buf.write("\u0f90\u0f91\3\2\2\2\u0f91\u0f93\3\2\2\2\u0f92\u0f8b\3")
        buf.write("\2\2\2\u0f93\u0f96\3\2\2\2\u0f94\u0f92\3\2\2\2\u0f94\u0f95")
        buf.write("\3\2\2\2\u0f95\u026b\3\2\2\2\u0f96\u0f94\3\2\2\2\u01a5")
        buf.write("\u0273\u027c\u0281\u0295\u02a1\u02a8\u02af\u02b7\u02bb")
        buf.write("\u02be\u02c3\u02cd\u02d3\u02d6\u02dc\u02e4\u02ea\u02ed")
        buf.write("\u02f3\u02f8\u0303\u030e\u0319\u0320\u0323\u0329\u032d")
        buf.write("\u0336\u033b\u0348\u034d\u0354\u035b\u035f\u0368\u036f")
        buf.write("\u0376\u037d\u0384\u0388\u038d\u0394\u039b\u03a2\u03a9")
        buf.write("\u03b0\u03b7\u03bb\u03c0\u03c7\u03ce\u03d5\u03dc\u03e3")
        buf.write("\u03e7\u03f3\u03fb\u03fe\u0417\u041e\u0421\u0430\u0434")
        buf.write("\u043b\u043e\u0441\u0447\u044a\u044d\u0453\u0456\u0459")
        buf.write("\u045e\u0461\u0464\u046a\u046d\u0472\u0479\u0495\u0498")
        buf.write("\u049f\u04a2\u04a9\u04ac\u04af\u04b6\u04b9\u04bc\u04c3")
        buf.write("\u04c6\u04c9\u04d0\u04d3\u04d6\u04da\u04e1\u04e4\u04e7")
        buf.write("\u04eb\u04f2\u04f5\u04f8\u04fc\u0503\u0506\u050a\u050f")
        buf.write("\u0518\u051f\u0522\u0527\u052e\u0531\u0557\u0566\u0571")
        buf.write("\u0573\u0577\u0580\u0584\u058a\u0591\u0594\u059c\u059f")
        buf.write("\u05a3\u05ab\u05ae\u05b6\u05b9\u05bd\u05c5\u05cd\u05d5")
        buf.write("\u05dd\u05e5\u05ed\u05f5\u05fb\u0601\u0605\u0615\u061d")
        buf.write("\u062b\u0630\u0646\u0649\u064c\u0653\u0657\u065d\u0660")
        buf.write("\u0663\u066d\u0671\u0675\u067b\u0682\u0688\u0692\u0696")
        buf.write("\u069d\u06a5\u06aa\u06b1\u06b7\u06bd\u06c3\u06ca\u06d0")
        buf.write("\u06d7\u06da\u06dd\u06e0\u06e4\u06e7\u06e9\u06f3\u06fa")
        buf.write("\u0701\u0708\u070f\u0716\u071d\u0724\u0728\u072c\u072f")
        buf.write("\u0739\u0742\u0745\u0749\u0750\u0757\u075e\u0769\u0770")
        buf.write("\u0777\u077e\u0785\u078c\u078f\u0796\u079d\u07a0\u07a7")
        buf.write("\u07ae\u07b1\u07b8\u07bf\u07c6\u07cb\u07ce\u07db\u07e6")
        buf.write("\u07f1\u07fb\u0801\u0809\u0811\u081a\u0825\u082d\u083f")
        buf.write("\u0851\u086f\u0876\u0885\u088d\u0890\u0898\u08a3\u08aa")
        buf.write("\u08b2\u08b5\u08ba\u08be\u08c3\u08ca\u08d2\u08d9\u08e0")
        buf.write("\u08e9\u08f3\u08fd\u0905\u0908\u091b\u0920\u0927\u092a")
        buf.write("\u0934\u0944\u094b\u095b\u0965\u0969\u0971\u0974\u0979")
        buf.write("\u0988\u098b\u0990\u099b\u099e\u09a3\u09ab\u09b4\u09bb")
        buf.write("\u09c2\u09c9\u09d0\u09d7\u09e0\u09e7\u09f0\u09f7\u09fe")
        buf.write("\u0a05\u0a0c\u0a10\u0a16\u0a1a\u0a1f\u0a28\u0a2f\u0a36")
        buf.write("\u0a3d\u0a44\u0a4b\u0a4f\u0a59\u0a62\u0a6c\u0a7b\u0a86")
        buf.write("\u0a88\u0a90\u0aa2\u0aa5\u0ab5\u0aba\u0ac3\u0ac6\u0ad6")
        buf.write("\u0adb\u0ae5\u0af2\u0aff\u0b04\u0b0b\u0b13\u0b16\u0b20")
        buf.write("\u0b2d\u0b3a\u0b3f\u0b46\u0b4e\u0b51\u0b6b\u0b85\u0b8e")
        buf.write("\u0b91\u0b94\u0b9f\u0ba2\u0ba5\u0bad\u0bb6\u0bc0\u0bca")
        buf.write("\u0bd5\u0bdf\u0be3\u0beb\u0bf6\u0bfe\u0c0c\u0c19\u0c1d")
        buf.write("\u0c21\u0c28\u0c59\u0c85\u0c89\u0c8f\u0c97\u0c9d\u0cb5")
        buf.write("\u0cc1\u0cc9\u0ce1\u0cec\u0cfc\u0d11\u0d21\u0d2e\u0d3b")
        buf.write("\u0d43\u0d53\u0d60\u0d6d\u0d73\u0d7c\u0d7f\u0d87\u0d90")
        buf.write("\u0d93\u0d9d\u0da0\u0da6\u0daf\u0db2\u0dc3\u0dd2\u0ddb")
        buf.write("\u0de4\u0deb\u0ded\u0df4\u0dfb\u0e05\u0e0c\u0e18\u0e1d")
        buf.write("\u0e23\u0e2c\u0e33\u0e35\u0e3e\u0e4f\u0e5e\u0e6b\u0e76")
        buf.write("\u0e7f\u0e93\u0ea0\u0ead\u0eba\u0ec7\u0ed4\u0ee1\u0ef9")
        buf.write("\u0f04\u0f0a\u0f14\u0f1b\u0f1d\u0f34\u0f58\u0f5d\u0f77")
        buf.write("\u0f7e\u0f82\u0f89\u0f90\u0f94")
        return buf.getvalue()


class Verilog2001Parser ( Parser ):

    grammarFileName = "Verilog2001.g4"

    atn = ATNDeserializer().deserialize(serializedATN())

    decisionsToDFA = [ DFA(ds, i) for i, ds in enumerate(atn.decisionToState) ]

    sharedContextCache = PredictionContextCache()

    literalNames = [ "<INVALID>", "'config'", "';'", "'endconfig'", "'design'", 
                     "'.'", "'default'", "'instance'", "'liblist'", "'cell'", 
                     "'use'", "':config'", "'endmodule'", "'module'", "'macromodule'", 
                     "'#'", "'('", "','", "')'", "'{'", "'}'", "'['", "']'", 
                     "'defparam'", "'localparam'", "'signed'", "'integer'", 
                     "'real'", "'realtime'", "'time'", "'parameter'", "'specparam'", 
                     "'inout'", "'input'", "'output'", "'reg'", "'event'", 
                     "'genvar'", "'trireg'", "'vectored'", "'scalared'", 
                     "'supply0'", "'supply1'", "'tri'", "'triand'", "'trior'", 
                     "'tri0'", "'tri1'", "'wire'", "'wand'", "'wor'", "'='", 
                     "'highz1'", "'highz0'", "'strong0'", "'pull0'", "'weak0'", 
                     "'strong1'", "'pull1'", "'weak1'", "'small'", "'medium'", 
                     "'large'", "'PATHPULSE$'", "'$'", "':'", "'function'", 
                     "'automatic'", "'endfunction'", "'task'", "'endtask'", 
                     "'pulldown'", "'pullup'", "'cmos'", "'rcmos'", "'bufif0'", 
                     "'bufif1'", "'notif0'", "'notif1'", "'nmos'", "'pmos'", 
                     "'rnmos'", "'rpmos'", "'and'", "'nand'", "'or'", "'nor'", 
                     "'xor'", "'xnor'", "'buf'", "'not'", "'tranif0'", "'tranif1'", 
                     "'rtranif1'", "'rtranif0'", "'tran'", "'rtran'", "'generate'", 
                     "'endgenerate'", "'if'", "'else'", "'case'", "'endcase'", 
                     "'for'", "'begin'", "'end'", "'assign'", "'initial'", 
                     "'always'", "'<='", "'deassign'", "'force'", "'release'", 
                     "'fork'", "'join'", "'repeat'", "'disable'", "'@'", 
                     "'*'", "'->'", "'posedge'", "'negedge'", "'wait'", 
                     "'casez'", "'casex'", "'forever'", "'while'", "'specify'", 
                     "'endspecify'", "'pulsestyle_onevent'", "'pulsestyle_ondetect'", 
                     "'showcancelled'", "'noshowcancelled'", "'=>'", "'*>'", 
                     "'ifnone'", "'+'", "'-'", "'+:'", "'-:'", "'?'", "'!'", 
                     "'~'", "'&'", "'~&'", "'|'", "'~|'", "'^'", "'~^'", 
                     "'^~'", "'/'", "'%'", "'=='", "'!='", "'==='", "'!=='", 
                     "'&&'", "'||'", "'**'", "'<'", "'>'", "'>='", "'>>'", 
                     "'<<'", "'>>>'", "'<<<'", "'`timescale'" ]

    symbolicNames = [ "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "Real_number", 
                      "Decimal_number", "Binary_number", "Octal_number", 
                      "Hex_number", "String", "One_line_comment", "Block_comment", 
                      "Escaped_identifier", "Simple_identifier", "Dollar_Identifier", 
                      "Time_Identifier", "White_space" ]

    RULE_config_declaration = 0
    RULE_design_statement = 1
    RULE_config_rule_statement = 2
    RULE_default_clause = 3
    RULE_inst_clause = 4
    RULE_inst_name = 5
    RULE_liblist_clause = 6
    RULE_cell_clause = 7
    RULE_use_clause = 8
    RULE_source_text = 9
    RULE_description = 10
    RULE_module_declaration = 11
    RULE_module_keyword = 12
    RULE_module_parameter_port_list = 13
    RULE_list_of_ports = 14
    RULE_list_of_port_declarations = 15
    RULE_port = 16
    RULE_port_expression = 17
    RULE_port_reference = 18
    RULE_port_declaration = 19
    RULE_module_item = 20
    RULE_module_or_generate_item = 21
    RULE_non_port_module_item = 22
    RULE_module_or_generate_item_declaration = 23
    RULE_parameter_override = 24
    RULE_local_parameter_declaration = 25
    RULE_parameter_declaration = 26
    RULE_parameter_declaration_ = 27
    RULE_specparam_declaration = 28
    RULE_inout_declaration = 29
    RULE_input_declaration = 30
    RULE_output_declaration = 31
    RULE_event_declaration = 32
    RULE_genvar_declaration = 33
    RULE_integer_declaration = 34
    RULE_time_declaration = 35
    RULE_real_declaration = 36
    RULE_realtime_declaration = 37
    RULE_reg_declaration = 38
    RULE_net_declaration = 39
    RULE_net_type = 40
    RULE_output_variable_type = 41
    RULE_real_type = 42
    RULE_variable_type = 43
    RULE_drive_strength = 44
    RULE_strength0 = 45
    RULE_strength1 = 46
    RULE_charge_strength = 47
    RULE_delay3 = 48
    RULE_delay2 = 49
    RULE_delay_value = 50
    RULE_list_of_event_identifiers = 51
    RULE_list_of_net_identifiers = 52
    RULE_list_of_genvar_identifiers = 53
    RULE_list_of_port_identifiers = 54
    RULE_list_of_net_decl_assignments = 55
    RULE_list_of_param_assignments = 56
    RULE_list_of_specparam_assignments = 57
    RULE_list_of_real_identifiers = 58
    RULE_list_of_variable_identifiers = 59
    RULE_list_of_variable_port_identifiers = 60
    RULE_net_decl_assignment = 61
    RULE_param_assignment = 62
    RULE_specparam_assignment = 63
    RULE_pulse_control_specparam = 64
    RULE_error_limit_value = 65
    RULE_reject_limit_value = 66
    RULE_limit_value = 67
    RULE_dimension = 68
    RULE_range_ = 69
    RULE_function_declaration = 70
    RULE_function_item_declaration = 71
    RULE_function_port_list = 72
    RULE_function_port = 73
    RULE_range_or_type = 74
    RULE_task_declaration = 75
    RULE_task_item_declaration = 76
    RULE_task_port_list = 77
    RULE_task_port_item = 78
    RULE_tf_decl_header = 79
    RULE_tf_declaration = 80
    RULE_task_port_type = 81
    RULE_block_item_declaration = 82
    RULE_block_reg_declaration = 83
    RULE_list_of_block_variable_identifiers = 84
    RULE_block_variable_type = 85
    RULE_gate_instantiation = 86
    RULE_cmos_switch_instance = 87
    RULE_enable_gate_instance = 88
    RULE_mos_switch_instance = 89
    RULE_n_input_gate_instance = 90
    RULE_n_output_gate_instance = 91
    RULE_pass_switch_instance = 92
    RULE_pass_enable_switch_instance = 93
    RULE_pull_gate_instance = 94
    RULE_name_of_gate_instance = 95
    RULE_pulldown_strength = 96
    RULE_pullup_strength = 97
    RULE_enable_terminal = 98
    RULE_ncontrol_terminal = 99
    RULE_pcontrol_terminal = 100
    RULE_input_terminal = 101
    RULE_inout_terminal = 102
    RULE_output_terminal = 103
    RULE_cmos_switchtype = 104
    RULE_enable_gatetype = 105
    RULE_mos_switchtype = 106
    RULE_n_input_gatetype = 107
    RULE_n_output_gatetype = 108
    RULE_pass_en_switchtype = 109
    RULE_pass_switchtype = 110
    RULE_module_instantiation = 111
    RULE_parameter_value_assignment = 112
    RULE_list_of_parameter_assignments = 113
    RULE_ordered_parameter_assignment = 114
    RULE_named_parameter_assignment = 115
    RULE_module_instance = 116
    RULE_name_of_instance = 117
    RULE_list_of_port_connections = 118
    RULE_ordered_port_connection = 119
    RULE_named_port_connection = 120
    RULE_generated_instantiation = 121
    RULE_generate_item_or_null = 122
    RULE_generate_item = 123
    RULE_generate_conditional_statement = 124
    RULE_generate_case_statement = 125
    RULE_genvar_case_item = 126
    RULE_generate_loop_statement = 127
    RULE_genvar_assignment = 128
    RULE_generate_block = 129
    RULE_continuous_assign = 130
    RULE_list_of_net_assignments = 131
    RULE_net_assignment = 132
    RULE_initial_construct = 133
    RULE_always_construct = 134
    RULE_blocking_assignment = 135
    RULE_nonblocking_assignment = 136
    RULE_procedural_continuous_assignments = 137
    RULE_function_blocking_assignment = 138
    RULE_function_statement_or_null = 139
    RULE_function_seq_block = 140
    RULE_variable_assignment = 141
    RULE_par_block = 142
    RULE_seq_block = 143
    RULE_statement = 144
    RULE_statement_or_null = 145
    RULE_function_statement = 146
    RULE_delay_or_event_control = 147
    RULE_delay_control = 148
    RULE_disable_statement = 149
    RULE_event_control = 150
    RULE_event_trigger = 151
    RULE_event_expression = 152
    RULE_event_primary = 153
    RULE_procedural_timing_control_statement = 154
    RULE_wait_statement = 155
    RULE_conditional_statement = 156
    RULE_if_else_if_statement = 157
    RULE_function_conditional_statement = 158
    RULE_function_if_else_if_statement = 159
    RULE_case_statement = 160
    RULE_case_item = 161
    RULE_function_case_statement = 162
    RULE_function_case_item = 163
    RULE_function_loop_statement = 164
    RULE_loop_statement = 165
    RULE_system_task_enable = 166
    RULE_task_enable = 167
    RULE_specify_block = 168
    RULE_specify_item = 169
    RULE_pulsestyle_declaration = 170
    RULE_showcancelled_declaration = 171
    RULE_path_declaration = 172
    RULE_simple_path_declaration = 173
    RULE_parallel_path_description = 174
    RULE_full_path_description = 175
    RULE_list_of_path_inputs = 176
    RULE_list_of_path_outputs = 177
    RULE_specify_input_terminal_descriptor = 178
    RULE_specify_output_terminal_descriptor = 179
    RULE_input_identifier = 180
    RULE_output_identifier = 181
    RULE_path_delay_value = 182
    RULE_list_of_path_delay_expressions = 183
    RULE_t_path_delay_expression = 184
    RULE_trise_path_delay_expression = 185
    RULE_tfall_path_delay_expression = 186
    RULE_tz_path_delay_expression = 187
    RULE_t01_path_delay_expression = 188
    RULE_t10_path_delay_expression = 189
    RULE_t0z_path_delay_expression = 190
    RULE_tz1_path_delay_expression = 191
    RULE_t1z_path_delay_expression = 192
    RULE_tz0_path_delay_expression = 193
    RULE_t0x_path_delay_expression = 194
    RULE_tx1_path_delay_expression = 195
    RULE_t1x_path_delay_expression = 196
    RULE_tx0_path_delay_expression = 197
    RULE_txz_path_delay_expression = 198
    RULE_tzx_path_delay_expression = 199
    RULE_path_delay_expression = 200
    RULE_edge_sensitive_path_declaration = 201
    RULE_parallel_edge_sensitive_path_description = 202
    RULE_full_edge_sensitive_path_description = 203
    RULE_data_source_expression = 204
    RULE_edge_identifier = 205
    RULE_state_dependent_path_declaration = 206
    RULE_polarity_operator = 207
    RULE_checktime_condition = 208
    RULE_delayed_data = 209
    RULE_delayed_reference = 210
    RULE_end_edge_offset = 211
    RULE_event_based_flag = 212
    RULE_notify_reg = 213
    RULE_remain_active_flag = 214
    RULE_stamptime_condition = 215
    RULE_start_edge_offset = 216
    RULE_threshold = 217
    RULE_timing_check_limit = 218
    RULE_concatenation = 219
    RULE_constant_concatenation = 220
    RULE_constant_multiple_concatenation = 221
    RULE_module_path_concatenation = 222
    RULE_module_path_multiple_concatenation = 223
    RULE_multiple_concatenation = 224
    RULE_net_concatenation = 225
    RULE_net_concatenation_value = 226
    RULE_variable_concatenation = 227
    RULE_variable_concatenation_value = 228
    RULE_constant_function_call = 229
    RULE_function_call = 230
    RULE_system_function_call = 231
    RULE_genvar_function_call = 232
    RULE_base_expression = 233
    RULE_constant_base_expression = 234
    RULE_constant_expression = 235
    RULE_constant_mintypmax_expression = 236
    RULE_constant_range_expression = 237
    RULE_dimension_constant_expression = 238
    RULE_expression = 239
    RULE_term = 240
    RULE_lsb_constant_expression = 241
    RULE_mintypmax_expression = 242
    RULE_module_path_conditional_expression = 243
    RULE_module_path_expression = 244
    RULE_module_path_mintypmax_expression = 245
    RULE_msb_constant_expression = 246
    RULE_range_expression = 247
    RULE_width_constant_expression = 248
    RULE_constant_primary = 249
    RULE_module_path_primary = 250
    RULE_primary = 251
    RULE_net_lvalue = 252
    RULE_variable_lvalue = 253
    RULE_unary_operator = 254
    RULE_binary_operator = 255
    RULE_unary_module_path_operator = 256
    RULE_binary_module_path_operator = 257
    RULE_number = 258
    RULE_timing_spec = 259
    RULE_attribute_instance = 260
    RULE_attr_spec = 261
    RULE_attr_name = 262
    RULE_arrayed_identifier = 263
    RULE_block_identifier = 264
    RULE_cell_identifier = 265
    RULE_config_identifier = 266
    RULE_escaped_arrayed_identifier = 267
    RULE_escaped_hierarchical_identifier = 268
    RULE_event_identifier = 269
    RULE_function_identifier = 270
    RULE_gate_instance_identifier = 271
    RULE_generate_block_identifier = 272
    RULE_genvar_function_identifier = 273
    RULE_genvar_identifier = 274
    RULE_hierarchical_block_identifier = 275
    RULE_hierarchical_event_identifier = 276
    RULE_hierarchical_function_identifier = 277
    RULE_hierarchical_identifier = 278
    RULE_hierarchical_net_identifier = 279
    RULE_hierarchical_variable_identifier = 280
    RULE_hierarchical_task_identifier = 281
    RULE_identifier = 282
    RULE_inout_port_identifier = 283
    RULE_input_port_identifier = 284
    RULE_instance_identifier = 285
    RULE_library_identifier = 286
    RULE_memory_identifier = 287
    RULE_module_identifier = 288
    RULE_module_instance_identifier = 289
    RULE_net_identifier = 290
    RULE_output_port_identifier = 291
    RULE_parameter_identifier = 292
    RULE_port_identifier = 293
    RULE_real_identifier = 294
    RULE_simple_arrayed_identifier = 295
    RULE_simple_hierarchical_identifier = 296
    RULE_specparam_identifier = 297
    RULE_system_function_identifier = 298
    RULE_system_task_identifier = 299
    RULE_task_identifier = 300
    RULE_terminal_identifier = 301
    RULE_text_macro_identifier = 302
    RULE_topmodule_identifier = 303
    RULE_udp_identifier = 304
    RULE_udp_instance_identifier = 305
    RULE_variable_identifier = 306
    RULE_simple_hierarchical_branch = 307
    RULE_escaped_hierarchical_branch = 308

    ruleNames =  [ "config_declaration", "design_statement", "config_rule_statement", 
                   "default_clause", "inst_clause", "inst_name", "liblist_clause", 
                   "cell_clause", "use_clause", "source_text", "description", 
                   "module_declaration", "module_keyword", "module_parameter_port_list", 
                   "list_of_ports", "list_of_port_declarations", "port", 
                   "port_expression", "port_reference", "port_declaration", 
                   "module_item", "module_or_generate_item", "non_port_module_item", 
                   "module_or_generate_item_declaration", "parameter_override", 
                   "local_parameter_declaration", "parameter_declaration", 
                   "parameter_declaration_", "specparam_declaration", "inout_declaration", 
                   "input_declaration", "output_declaration", "event_declaration", 
                   "genvar_declaration", "integer_declaration", "time_declaration", 
                   "real_declaration", "realtime_declaration", "reg_declaration", 
                   "net_declaration", "net_type", "output_variable_type", 
                   "real_type", "variable_type", "drive_strength", "strength0", 
                   "strength1", "charge_strength", "delay3", "delay2", "delay_value", 
                   "list_of_event_identifiers", "list_of_net_identifiers", 
                   "list_of_genvar_identifiers", "list_of_port_identifiers", 
                   "list_of_net_decl_assignments", "list_of_param_assignments", 
                   "list_of_specparam_assignments", "list_of_real_identifiers", 
                   "list_of_variable_identifiers", "list_of_variable_port_identifiers", 
                   "net_decl_assignment", "param_assignment", "specparam_assignment", 
                   "pulse_control_specparam", "error_limit_value", "reject_limit_value", 
                   "limit_value", "dimension", "range_", "function_declaration", 
                   "function_item_declaration", "function_port_list", "function_port", 
                   "range_or_type", "task_declaration", "task_item_declaration", 
                   "task_port_list", "task_port_item", "tf_decl_header", 
                   "tf_declaration", "task_port_type", "block_item_declaration", 
                   "block_reg_declaration", "list_of_block_variable_identifiers", 
                   "block_variable_type", "gate_instantiation", "cmos_switch_instance", 
                   "enable_gate_instance", "mos_switch_instance", "n_input_gate_instance", 
                   "n_output_gate_instance", "pass_switch_instance", "pass_enable_switch_instance", 
                   "pull_gate_instance", "name_of_gate_instance", "pulldown_strength", 
                   "pullup_strength", "enable_terminal", "ncontrol_terminal", 
                   "pcontrol_terminal", "input_terminal", "inout_terminal", 
                   "output_terminal", "cmos_switchtype", "enable_gatetype", 
                   "mos_switchtype", "n_input_gatetype", "n_output_gatetype", 
                   "pass_en_switchtype", "pass_switchtype", "module_instantiation", 
                   "parameter_value_assignment", "list_of_parameter_assignments", 
                   "ordered_parameter_assignment", "named_parameter_assignment", 
                   "module_instance", "name_of_instance", "list_of_port_connections", 
                   "ordered_port_connection", "named_port_connection", "generated_instantiation", 
                   "generate_item_or_null", "generate_item", "generate_conditional_statement", 
                   "generate_case_statement", "genvar_case_item", "generate_loop_statement", 
                   "genvar_assignment", "generate_block", "continuous_assign", 
                   "list_of_net_assignments", "net_assignment", "initial_construct", 
                   "always_construct", "blocking_assignment", "nonblocking_assignment", 
                   "procedural_continuous_assignments", "function_blocking_assignment", 
                   "function_statement_or_null", "function_seq_block", "variable_assignment", 
                   "par_block", "seq_block", "statement", "statement_or_null", 
                   "function_statement", "delay_or_event_control", "delay_control", 
                   "disable_statement", "event_control", "event_trigger", 
                   "event_expression", "event_primary", "procedural_timing_control_statement", 
                   "wait_statement", "conditional_statement", "if_else_if_statement", 
                   "function_conditional_statement", "function_if_else_if_statement", 
                   "case_statement", "case_item", "function_case_statement", 
                   "function_case_item", "function_loop_statement", "loop_statement", 
                   "system_task_enable", "task_enable", "specify_block", 
                   "specify_item", "pulsestyle_declaration", "showcancelled_declaration", 
                   "path_declaration", "simple_path_declaration", "parallel_path_description", 
                   "full_path_description", "list_of_path_inputs", "list_of_path_outputs", 
                   "specify_input_terminal_descriptor", "specify_output_terminal_descriptor", 
                   "input_identifier", "output_identifier", "path_delay_value", 
                   "list_of_path_delay_expressions", "t_path_delay_expression", 
                   "trise_path_delay_expression", "tfall_path_delay_expression", 
                   "tz_path_delay_expression", "t01_path_delay_expression", 
                   "t10_path_delay_expression", "t0z_path_delay_expression", 
                   "tz1_path_delay_expression", "t1z_path_delay_expression", 
                   "tz0_path_delay_expression", "t0x_path_delay_expression", 
                   "tx1_path_delay_expression", "t1x_path_delay_expression", 
                   "tx0_path_delay_expression", "txz_path_delay_expression", 
                   "tzx_path_delay_expression", "path_delay_expression", 
                   "edge_sensitive_path_declaration", "parallel_edge_sensitive_path_description", 
                   "full_edge_sensitive_path_description", "data_source_expression", 
                   "edge_identifier", "state_dependent_path_declaration", 
                   "polarity_operator", "checktime_condition", "delayed_data", 
                   "delayed_reference", "end_edge_offset", "event_based_flag", 
                   "notify_reg", "remain_active_flag", "stamptime_condition", 
                   "start_edge_offset", "threshold", "timing_check_limit", 
                   "concatenation", "constant_concatenation", "constant_multiple_concatenation", 
                   "module_path_concatenation", "module_path_multiple_concatenation", 
                   "multiple_concatenation", "net_concatenation", "net_concatenation_value", 
                   "variable_concatenation", "variable_concatenation_value", 
                   "constant_function_call", "function_call", "system_function_call", 
                   "genvar_function_call", "base_expression", "constant_base_expression", 
                   "constant_expression", "constant_mintypmax_expression", 
                   "constant_range_expression", "dimension_constant_expression", 
                   "expression", "term", "lsb_constant_expression", "mintypmax_expression", 
                   "module_path_conditional_expression", "module_path_expression", 
                   "module_path_mintypmax_expression", "msb_constant_expression", 
                   "range_expression", "width_constant_expression", "constant_primary", 
                   "module_path_primary", "primary", "net_lvalue", "variable_lvalue", 
                   "unary_operator", "binary_operator", "unary_module_path_operator", 
                   "binary_module_path_operator", "number", "timing_spec", 
                   "attribute_instance", "attr_spec", "attr_name", "arrayed_identifier", 
                   "block_identifier", "cell_identifier", "config_identifier", 
                   "escaped_arrayed_identifier", "escaped_hierarchical_identifier", 
                   "event_identifier", "function_identifier", "gate_instance_identifier", 
                   "generate_block_identifier", "genvar_function_identifier", 
                   "genvar_identifier", "hierarchical_block_identifier", 
                   "hierarchical_event_identifier", "hierarchical_function_identifier", 
                   "hierarchical_identifier", "hierarchical_net_identifier", 
                   "hierarchical_variable_identifier", "hierarchical_task_identifier", 
                   "identifier", "inout_port_identifier", "input_port_identifier", 
                   "instance_identifier", "library_identifier", "memory_identifier", 
                   "module_identifier", "module_instance_identifier", "net_identifier", 
                   "output_port_identifier", "parameter_identifier", "port_identifier", 
                   "real_identifier", "simple_arrayed_identifier", "simple_hierarchical_identifier", 
                   "specparam_identifier", "system_function_identifier", 
                   "system_task_identifier", "task_identifier", "terminal_identifier", 
                   "text_macro_identifier", "topmodule_identifier", "udp_identifier", 
                   "udp_instance_identifier", "variable_identifier", "simple_hierarchical_branch", 
                   "escaped_hierarchical_branch" ]

    EOF = Token.EOF
    T__0=1
    T__1=2
    T__2=3
    T__3=4
    T__4=5
    T__5=6
    T__6=7
    T__7=8
    T__8=9
    T__9=10
    T__10=11
    T__11=12
    T__12=13
    T__13=14
    T__14=15
    T__15=16
    T__16=17
    T__17=18
    T__18=19
    T__19=20
    T__20=21
    T__21=22
    T__22=23
    T__23=24
    T__24=25
    T__25=26
    T__26=27
    T__27=28
    T__28=29
    T__29=30
    T__30=31
    T__31=32
    T__32=33
    T__33=34
    T__34=35
    T__35=36
    T__36=37
    T__37=38
    T__38=39
    T__39=40
    T__40=41
    T__41=42
    T__42=43
    T__43=44
    T__44=45
    T__45=46
    T__46=47
    T__47=48
    T__48=49
    T__49=50
    T__50=51
    T__51=52
    T__52=53
    T__53=54
    T__54=55
    T__55=56
    T__56=57
    T__57=58
    T__58=59
    T__59=60
    T__60=61
    T__61=62
    T__62=63
    T__63=64
    T__64=65
    T__65=66
    T__66=67
    T__67=68
    T__68=69
    T__69=70
    T__70=71
    T__71=72
    T__72=73
    T__73=74
    T__74=75
    T__75=76
    T__76=77
    T__77=78
    T__78=79
    T__79=80
    T__80=81
    T__81=82
    T__82=83
    T__83=84
    T__84=85
    T__85=86
    T__86=87
    T__87=88
    T__88=89
    T__89=90
    T__90=91
    T__91=92
    T__92=93
    T__93=94
    T__94=95
    T__95=96
    T__96=97
    T__97=98
    T__98=99
    T__99=100
    T__100=101
    T__101=102
    T__102=103
    T__103=104
    T__104=105
    T__105=106
    T__106=107
    T__107=108
    T__108=109
    T__109=110
    T__110=111
    T__111=112
    T__112=113
    T__113=114
    T__114=115
    T__115=116
    T__116=117
    T__117=118
    T__118=119
    T__119=120
    T__120=121
    T__121=122
    T__122=123
    T__123=124
    T__124=125
    T__125=126
    T__126=127
    T__127=128
    T__128=129
    T__129=130
    T__130=131
    T__131=132
    T__132=133
    T__133=134
    T__134=135
    T__135=136
    T__136=137
    T__137=138
    T__138=139
    T__139=140
    T__140=141
    T__141=142
    T__142=143
    T__143=144
    T__144=145
    T__145=146
    T__146=147
    T__147=148
    T__148=149
    T__149=150
    T__150=151
    T__151=152
    T__152=153
    T__153=154
    T__154=155
    T__155=156
    T__156=157
    T__157=158
    T__158=159
    T__159=160
    T__160=161
    T__161=162
    T__162=163
    T__163=164
    T__164=165
    T__165=166
    Real_number=167
    Decimal_number=168
    Binary_number=169
    Octal_number=170
    Hex_number=171
    String=172
    One_line_comment=173
    Block_comment=174
    Escaped_identifier=175
    Simple_identifier=176
    Dollar_Identifier=177
    Time_Identifier=178
    White_space=179

    def __init__(self, input:TokenStream, output:TextIO = sys.stdout):
        super().__init__(input, output)
        self.checkVersion("4.8")
        self._interp = ParserATNSimulator(self, self.atn, self.decisionsToDFA, self.sharedContextCache)
        self._predicates = None




    class Config_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def config_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Config_identifierContext,0)


        def design_statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.Design_statementContext,0)


        def config_rule_statement(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Config_rule_statementContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Config_rule_statementContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_config_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterConfig_declaration" ):
                listener.enterConfig_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitConfig_declaration" ):
                listener.exitConfig_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitConfig_declaration" ):
                return visitor.visitConfig_declaration(self)
            else:
                return visitor.visitChildren(self)




    def config_declaration(self):

        localctx = Verilog2001Parser.Config_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 0, self.RULE_config_declaration)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 618
            self.match(Verilog2001Parser.T__0)
            self.state = 619
            self.config_identifier()
            self.state = 620
            self.match(Verilog2001Parser.T__1)
            self.state = 621
            self.design_statement()
            self.state = 625
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__5) | (1 << Verilog2001Parser.T__6) | (1 << Verilog2001Parser.T__8))) != 0):
                self.state = 622
                self.config_rule_statement()
                self.state = 627
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 628
            self.match(Verilog2001Parser.T__2)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Design_statementContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def cell_identifier(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Cell_identifierContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Cell_identifierContext,i)


        def library_identifier(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Library_identifierContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Library_identifierContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_design_statement

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterDesign_statement" ):
                listener.enterDesign_statement(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitDesign_statement" ):
                listener.exitDesign_statement(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitDesign_statement" ):
                return visitor.visitDesign_statement(self)
            else:
                return visitor.visitChildren(self)




    def design_statement(self):

        localctx = Verilog2001Parser.Design_statementContext(self, self._ctx, self.state)
        self.enterRule(localctx, 2, self.RULE_design_statement)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 630
            self.match(Verilog2001Parser.T__3)
            self.state = 639
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.Escaped_identifier or _la==Verilog2001Parser.Simple_identifier:
                self.state = 634
                self._errHandler.sync(self)
                la_ = self._interp.adaptivePredict(self._input,1,self._ctx)
                if la_ == 1:
                    self.state = 631
                    self.library_identifier()
                    self.state = 632
                    self.match(Verilog2001Parser.T__4)


                self.state = 636
                self.cell_identifier()
                self.state = 641
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 642
            self.match(Verilog2001Parser.T__1)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Config_rule_statementContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def default_clause(self):
            return self.getTypedRuleContext(Verilog2001Parser.Default_clauseContext,0)


        def liblist_clause(self):
            return self.getTypedRuleContext(Verilog2001Parser.Liblist_clauseContext,0)


        def inst_clause(self):
            return self.getTypedRuleContext(Verilog2001Parser.Inst_clauseContext,0)


        def use_clause(self):
            return self.getTypedRuleContext(Verilog2001Parser.Use_clauseContext,0)


        def cell_clause(self):
            return self.getTypedRuleContext(Verilog2001Parser.Cell_clauseContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_config_rule_statement

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterConfig_rule_statement" ):
                listener.enterConfig_rule_statement(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitConfig_rule_statement" ):
                listener.exitConfig_rule_statement(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitConfig_rule_statement" ):
                return visitor.visitConfig_rule_statement(self)
            else:
                return visitor.visitChildren(self)




    def config_rule_statement(self):

        localctx = Verilog2001Parser.Config_rule_statementContext(self, self._ctx, self.state)
        self.enterRule(localctx, 4, self.RULE_config_rule_statement)
        try:
            self.state = 659
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,3,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 644
                self.default_clause()
                self.state = 645
                self.liblist_clause()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 647
                self.inst_clause()
                self.state = 648
                self.liblist_clause()
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 650
                self.inst_clause()
                self.state = 651
                self.use_clause()
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 653
                self.cell_clause()
                self.state = 654
                self.liblist_clause()
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 656
                self.cell_clause()
                self.state = 657
                self.use_clause()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Default_clauseContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_default_clause

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterDefault_clause" ):
                listener.enterDefault_clause(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitDefault_clause" ):
                listener.exitDefault_clause(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitDefault_clause" ):
                return visitor.visitDefault_clause(self)
            else:
                return visitor.visitChildren(self)




    def default_clause(self):

        localctx = Verilog2001Parser.Default_clauseContext(self, self._ctx, self.state)
        self.enterRule(localctx, 6, self.RULE_default_clause)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 661
            self.match(Verilog2001Parser.T__5)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Inst_clauseContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def inst_name(self):
            return self.getTypedRuleContext(Verilog2001Parser.Inst_nameContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_inst_clause

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterInst_clause" ):
                listener.enterInst_clause(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitInst_clause" ):
                listener.exitInst_clause(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitInst_clause" ):
                return visitor.visitInst_clause(self)
            else:
                return visitor.visitChildren(self)




    def inst_clause(self):

        localctx = Verilog2001Parser.Inst_clauseContext(self, self._ctx, self.state)
        self.enterRule(localctx, 8, self.RULE_inst_clause)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 663
            self.match(Verilog2001Parser.T__6)
            self.state = 664
            self.inst_name()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Inst_nameContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def topmodule_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Topmodule_identifierContext,0)


        def instance_identifier(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Instance_identifierContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Instance_identifierContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_inst_name

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterInst_name" ):
                listener.enterInst_name(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitInst_name" ):
                listener.exitInst_name(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitInst_name" ):
                return visitor.visitInst_name(self)
            else:
                return visitor.visitChildren(self)




    def inst_name(self):

        localctx = Verilog2001Parser.Inst_nameContext(self, self._ctx, self.state)
        self.enterRule(localctx, 10, self.RULE_inst_name)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 666
            self.topmodule_identifier()
            self.state = 671
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__4:
                self.state = 667
                self.match(Verilog2001Parser.T__4)
                self.state = 668
                self.instance_identifier()
                self.state = 673
                self._errHandler.sync(self)
                _la = self._input.LA(1)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Liblist_clauseContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def library_identifier(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Library_identifierContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Library_identifierContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_liblist_clause

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterLiblist_clause" ):
                listener.enterLiblist_clause(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitLiblist_clause" ):
                listener.exitLiblist_clause(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitLiblist_clause" ):
                return visitor.visitLiblist_clause(self)
            else:
                return visitor.visitChildren(self)




    def liblist_clause(self):

        localctx = Verilog2001Parser.Liblist_clauseContext(self, self._ctx, self.state)
        self.enterRule(localctx, 12, self.RULE_liblist_clause)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 674
            self.match(Verilog2001Parser.T__7)
            self.state = 678
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.Escaped_identifier or _la==Verilog2001Parser.Simple_identifier:
                self.state = 675
                self.library_identifier()
                self.state = 680
                self._errHandler.sync(self)
                _la = self._input.LA(1)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Cell_clauseContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def cell_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Cell_identifierContext,0)


        def library_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Library_identifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_cell_clause

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterCell_clause" ):
                listener.enterCell_clause(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitCell_clause" ):
                listener.exitCell_clause(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitCell_clause" ):
                return visitor.visitCell_clause(self)
            else:
                return visitor.visitChildren(self)




    def cell_clause(self):

        localctx = Verilog2001Parser.Cell_clauseContext(self, self._ctx, self.state)
        self.enterRule(localctx, 14, self.RULE_cell_clause)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 681
            self.match(Verilog2001Parser.T__8)
            self.state = 685
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,6,self._ctx)
            if la_ == 1:
                self.state = 682
                self.library_identifier()
                self.state = 683
                self.match(Verilog2001Parser.T__4)


            self.state = 687
            self.cell_identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Use_clauseContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def cell_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Cell_identifierContext,0)


        def library_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Library_identifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_use_clause

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterUse_clause" ):
                listener.enterUse_clause(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitUse_clause" ):
                listener.exitUse_clause(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitUse_clause" ):
                return visitor.visitUse_clause(self)
            else:
                return visitor.visitChildren(self)




    def use_clause(self):

        localctx = Verilog2001Parser.Use_clauseContext(self, self._ctx, self.state)
        self.enterRule(localctx, 16, self.RULE_use_clause)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 689
            self.match(Verilog2001Parser.T__9)
            self.state = 693
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,7,self._ctx)
            if la_ == 1:
                self.state = 690
                self.library_identifier()
                self.state = 691
                self.match(Verilog2001Parser.T__4)


            self.state = 695
            self.cell_identifier()
            self.state = 697
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__10:
                self.state = 696
                self.match(Verilog2001Parser.T__10)


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Source_textContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def EOF(self):
            return self.getToken(Verilog2001Parser.EOF, 0)

        def timing_spec(self):
            return self.getTypedRuleContext(Verilog2001Parser.Timing_specContext,0)


        def description(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.DescriptionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.DescriptionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_source_text

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterSource_text" ):
                listener.enterSource_text(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitSource_text" ):
                listener.exitSource_text(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitSource_text" ):
                return visitor.visitSource_text(self)
            else:
                return visitor.visitChildren(self)




    def source_text(self):

        localctx = Verilog2001Parser.Source_textContext(self, self._ctx, self.state)
        self.enterRule(localctx, 18, self.RULE_source_text)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 700
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__165:
                self.state = 699
                self.timing_spec()


            self.state = 705
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__12) | (1 << Verilog2001Parser.T__13) | (1 << Verilog2001Parser.T__15))) != 0):
                self.state = 702
                self.description()
                self.state = 707
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 708
            self.match(Verilog2001Parser.EOF)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class DescriptionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def module_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Module_declarationContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_description

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterDescription" ):
                listener.enterDescription(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitDescription" ):
                listener.exitDescription(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitDescription" ):
                return visitor.visitDescription(self)
            else:
                return visitor.visitChildren(self)




    def description(self):

        localctx = Verilog2001Parser.DescriptionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 20, self.RULE_description)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 710
            self.module_declaration()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Module_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def module_keyword(self):
            return self.getTypedRuleContext(Verilog2001Parser.Module_keywordContext,0)


        def module_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Module_identifierContext,0)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def module_parameter_port_list(self):
            return self.getTypedRuleContext(Verilog2001Parser.Module_parameter_port_listContext,0)


        def list_of_ports(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_portsContext,0)


        def module_item(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Module_itemContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Module_itemContext,i)


        def list_of_port_declarations(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_port_declarationsContext,0)


        def non_port_module_item(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Non_port_module_itemContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Non_port_module_itemContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_module_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterModule_declaration" ):
                listener.enterModule_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitModule_declaration" ):
                listener.exitModule_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitModule_declaration" ):
                return visitor.visitModule_declaration(self)
            else:
                return visitor.visitChildren(self)




    def module_declaration(self):

        localctx = Verilog2001Parser.Module_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 22, self.RULE_module_declaration)
        self._la = 0 # Token type
        try:
            self.state = 758
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,19,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 715
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 712
                    self.attribute_instance()
                    self.state = 717
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 718
                self.module_keyword()
                self.state = 719
                self.module_identifier()
                self.state = 721
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__14:
                    self.state = 720
                    self.module_parameter_port_list()


                self.state = 724
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__15:
                    self.state = 723
                    self.list_of_ports()


                self.state = 726
                self.match(Verilog2001Parser.T__1)
                self.state = 730
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__15) | (1 << Verilog2001Parser.T__22) | (1 << Verilog2001Parser.T__23) | (1 << Verilog2001Parser.T__25) | (1 << Verilog2001Parser.T__26) | (1 << Verilog2001Parser.T__27) | (1 << Verilog2001Parser.T__28) | (1 << Verilog2001Parser.T__29) | (1 << Verilog2001Parser.T__30) | (1 << Verilog2001Parser.T__31) | (1 << Verilog2001Parser.T__32) | (1 << Verilog2001Parser.T__33) | (1 << Verilog2001Parser.T__34) | (1 << Verilog2001Parser.T__35) | (1 << Verilog2001Parser.T__36) | (1 << Verilog2001Parser.T__37) | (1 << Verilog2001Parser.T__40) | (1 << Verilog2001Parser.T__41) | (1 << Verilog2001Parser.T__42) | (1 << Verilog2001Parser.T__43) | (1 << Verilog2001Parser.T__44) | (1 << Verilog2001Parser.T__45) | (1 << Verilog2001Parser.T__46) | (1 << Verilog2001Parser.T__47) | (1 << Verilog2001Parser.T__48) | (1 << Verilog2001Parser.T__49))) != 0) or ((((_la - 66)) & ~0x3f) == 0 and ((1 << (_la - 66)) & ((1 << (Verilog2001Parser.T__65 - 66)) | (1 << (Verilog2001Parser.T__68 - 66)) | (1 << (Verilog2001Parser.T__70 - 66)) | (1 << (Verilog2001Parser.T__71 - 66)) | (1 << (Verilog2001Parser.T__72 - 66)) | (1 << (Verilog2001Parser.T__73 - 66)) | (1 << (Verilog2001Parser.T__74 - 66)) | (1 << (Verilog2001Parser.T__75 - 66)) | (1 << (Verilog2001Parser.T__76 - 66)) | (1 << (Verilog2001Parser.T__77 - 66)) | (1 << (Verilog2001Parser.T__78 - 66)) | (1 << (Verilog2001Parser.T__79 - 66)) | (1 << (Verilog2001Parser.T__80 - 66)) | (1 << (Verilog2001Parser.T__81 - 66)) | (1 << (Verilog2001Parser.T__82 - 66)) | (1 << (Verilog2001Parser.T__83 - 66)) | (1 << (Verilog2001Parser.T__84 - 66)) | (1 << (Verilog2001Parser.T__85 - 66)) | (1 << (Verilog2001Parser.T__86 - 66)) | (1 << (Verilog2001Parser.T__87 - 66)) | (1 << (Verilog2001Parser.T__88 - 66)) | (1 << (Verilog2001Parser.T__89 - 66)) | (1 << (Verilog2001Parser.T__90 - 66)) | (1 << (Verilog2001Parser.T__91 - 66)) | (1 << (Verilog2001Parser.T__92 - 66)) | (1 << (Verilog2001Parser.T__93 - 66)) | (1 << (Verilog2001Parser.T__94 - 66)) | (1 << (Verilog2001Parser.T__95 - 66)) | (1 << (Verilog2001Parser.T__96 - 66)) | (1 << (Verilog2001Parser.T__105 - 66)) | (1 << (Verilog2001Parser.T__106 - 66)) | (1 << (Verilog2001Parser.T__107 - 66)) | (1 << (Verilog2001Parser.T__126 - 66)))) != 0) or _la==Verilog2001Parser.Escaped_identifier or _la==Verilog2001Parser.Simple_identifier:
                    self.state = 727
                    self.module_item()
                    self.state = 732
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 733
                self.match(Verilog2001Parser.T__11)
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 738
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 735
                    self.attribute_instance()
                    self.state = 740
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 741
                self.module_keyword()
                self.state = 742
                self.module_identifier()
                self.state = 744
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__14:
                    self.state = 743
                    self.module_parameter_port_list()


                self.state = 747
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__15:
                    self.state = 746
                    self.list_of_port_declarations()


                self.state = 749
                self.match(Verilog2001Parser.T__1)
                self.state = 753
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__15) | (1 << Verilog2001Parser.T__22) | (1 << Verilog2001Parser.T__23) | (1 << Verilog2001Parser.T__25) | (1 << Verilog2001Parser.T__26) | (1 << Verilog2001Parser.T__27) | (1 << Verilog2001Parser.T__28) | (1 << Verilog2001Parser.T__29) | (1 << Verilog2001Parser.T__30) | (1 << Verilog2001Parser.T__34) | (1 << Verilog2001Parser.T__35) | (1 << Verilog2001Parser.T__36) | (1 << Verilog2001Parser.T__37) | (1 << Verilog2001Parser.T__40) | (1 << Verilog2001Parser.T__41) | (1 << Verilog2001Parser.T__42) | (1 << Verilog2001Parser.T__43) | (1 << Verilog2001Parser.T__44) | (1 << Verilog2001Parser.T__45) | (1 << Verilog2001Parser.T__46) | (1 << Verilog2001Parser.T__47) | (1 << Verilog2001Parser.T__48) | (1 << Verilog2001Parser.T__49))) != 0) or ((((_la - 66)) & ~0x3f) == 0 and ((1 << (_la - 66)) & ((1 << (Verilog2001Parser.T__65 - 66)) | (1 << (Verilog2001Parser.T__68 - 66)) | (1 << (Verilog2001Parser.T__70 - 66)) | (1 << (Verilog2001Parser.T__71 - 66)) | (1 << (Verilog2001Parser.T__72 - 66)) | (1 << (Verilog2001Parser.T__73 - 66)) | (1 << (Verilog2001Parser.T__74 - 66)) | (1 << (Verilog2001Parser.T__75 - 66)) | (1 << (Verilog2001Parser.T__76 - 66)) | (1 << (Verilog2001Parser.T__77 - 66)) | (1 << (Verilog2001Parser.T__78 - 66)) | (1 << (Verilog2001Parser.T__79 - 66)) | (1 << (Verilog2001Parser.T__80 - 66)) | (1 << (Verilog2001Parser.T__81 - 66)) | (1 << (Verilog2001Parser.T__82 - 66)) | (1 << (Verilog2001Parser.T__83 - 66)) | (1 << (Verilog2001Parser.T__84 - 66)) | (1 << (Verilog2001Parser.T__85 - 66)) | (1 << (Verilog2001Parser.T__86 - 66)) | (1 << (Verilog2001Parser.T__87 - 66)) | (1 << (Verilog2001Parser.T__88 - 66)) | (1 << (Verilog2001Parser.T__89 - 66)) | (1 << (Verilog2001Parser.T__90 - 66)) | (1 << (Verilog2001Parser.T__91 - 66)) | (1 << (Verilog2001Parser.T__92 - 66)) | (1 << (Verilog2001Parser.T__93 - 66)) | (1 << (Verilog2001Parser.T__94 - 66)) | (1 << (Verilog2001Parser.T__95 - 66)) | (1 << (Verilog2001Parser.T__96 - 66)) | (1 << (Verilog2001Parser.T__105 - 66)) | (1 << (Verilog2001Parser.T__106 - 66)) | (1 << (Verilog2001Parser.T__107 - 66)) | (1 << (Verilog2001Parser.T__126 - 66)))) != 0) or _la==Verilog2001Parser.Escaped_identifier or _la==Verilog2001Parser.Simple_identifier:
                    self.state = 750
                    self.non_port_module_item()
                    self.state = 755
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 756
                self.match(Verilog2001Parser.T__11)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Module_keywordContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_module_keyword

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterModule_keyword" ):
                listener.enterModule_keyword(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitModule_keyword" ):
                listener.exitModule_keyword(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitModule_keyword" ):
                return visitor.visitModule_keyword(self)
            else:
                return visitor.visitChildren(self)




    def module_keyword(self):

        localctx = Verilog2001Parser.Module_keywordContext(self, self._ctx, self.state)
        self.enterRule(localctx, 24, self.RULE_module_keyword)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 760
            _la = self._input.LA(1)
            if not(_la==Verilog2001Parser.T__12 or _la==Verilog2001Parser.T__13):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Module_parameter_port_listContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def parameter_declaration_(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Parameter_declaration_Context)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Parameter_declaration_Context,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_module_parameter_port_list

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterModule_parameter_port_list" ):
                listener.enterModule_parameter_port_list(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitModule_parameter_port_list" ):
                listener.exitModule_parameter_port_list(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitModule_parameter_port_list" ):
                return visitor.visitModule_parameter_port_list(self)
            else:
                return visitor.visitChildren(self)




    def module_parameter_port_list(self):

        localctx = Verilog2001Parser.Module_parameter_port_listContext(self, self._ctx, self.state)
        self.enterRule(localctx, 26, self.RULE_module_parameter_port_list)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 762
            self.match(Verilog2001Parser.T__14)
            self.state = 763
            self.match(Verilog2001Parser.T__15)
            self.state = 764
            self.parameter_declaration_()
            self.state = 769
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 765
                self.match(Verilog2001Parser.T__16)
                self.state = 766
                self.parameter_declaration_()
                self.state = 771
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 772
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class List_of_portsContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def port(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.PortContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.PortContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_list_of_ports

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterList_of_ports" ):
                listener.enterList_of_ports(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitList_of_ports" ):
                listener.exitList_of_ports(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitList_of_ports" ):
                return visitor.visitList_of_ports(self)
            else:
                return visitor.visitChildren(self)




    def list_of_ports(self):

        localctx = Verilog2001Parser.List_of_portsContext(self, self._ctx, self.state)
        self.enterRule(localctx, 28, self.RULE_list_of_ports)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 774
            self.match(Verilog2001Parser.T__15)
            self.state = 775
            self.port()
            self.state = 780
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 776
                self.match(Verilog2001Parser.T__16)
                self.state = 777
                self.port()
                self.state = 782
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 783
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class List_of_port_declarationsContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def port_declaration(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Port_declarationContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Port_declarationContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_list_of_port_declarations

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterList_of_port_declarations" ):
                listener.enterList_of_port_declarations(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitList_of_port_declarations" ):
                listener.exitList_of_port_declarations(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitList_of_port_declarations" ):
                return visitor.visitList_of_port_declarations(self)
            else:
                return visitor.visitChildren(self)




    def list_of_port_declarations(self):

        localctx = Verilog2001Parser.List_of_port_declarationsContext(self, self._ctx, self.state)
        self.enterRule(localctx, 30, self.RULE_list_of_port_declarations)
        self._la = 0 # Token type
        try:
            self.state = 798
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,23,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 785
                self.match(Verilog2001Parser.T__15)
                self.state = 786
                self.port_declaration()
                self.state = 791
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 787
                    self.match(Verilog2001Parser.T__16)
                    self.state = 788
                    self.port_declaration()
                    self.state = 793
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 794
                self.match(Verilog2001Parser.T__17)
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 796
                self.match(Verilog2001Parser.T__15)
                self.state = 797
                self.match(Verilog2001Parser.T__17)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class PortContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def port_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Port_expressionContext,0)


        def port_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Port_identifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_port

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPort" ):
                listener.enterPort(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPort" ):
                listener.exitPort(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPort" ):
                return visitor.visitPort(self)
            else:
                return visitor.visitChildren(self)




    def port(self):

        localctx = Verilog2001Parser.PortContext(self, self._ctx, self.state)
        self.enterRule(localctx, 32, self.RULE_port)
        self._la = 0 # Token type
        try:
            self.state = 811
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__16, Verilog2001Parser.T__17, Verilog2001Parser.T__18, Verilog2001Parser.Escaped_identifier, Verilog2001Parser.Simple_identifier]:
                self.enterOuterAlt(localctx, 1)
                self.state = 801
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__18 or _la==Verilog2001Parser.Escaped_identifier or _la==Verilog2001Parser.Simple_identifier:
                    self.state = 800
                    self.port_expression()


                pass
            elif token in [Verilog2001Parser.T__4]:
                self.enterOuterAlt(localctx, 2)
                self.state = 803
                self.match(Verilog2001Parser.T__4)
                self.state = 804
                self.port_identifier()
                self.state = 805
                self.match(Verilog2001Parser.T__15)
                self.state = 807
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__18 or _la==Verilog2001Parser.Escaped_identifier or _la==Verilog2001Parser.Simple_identifier:
                    self.state = 806
                    self.port_expression()


                self.state = 809
                self.match(Verilog2001Parser.T__17)
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Port_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def port_reference(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Port_referenceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Port_referenceContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_port_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPort_expression" ):
                listener.enterPort_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPort_expression" ):
                listener.exitPort_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPort_expression" ):
                return visitor.visitPort_expression(self)
            else:
                return visitor.visitChildren(self)




    def port_expression(self):

        localctx = Verilog2001Parser.Port_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 34, self.RULE_port_expression)
        self._la = 0 # Token type
        try:
            self.state = 825
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.Escaped_identifier, Verilog2001Parser.Simple_identifier]:
                self.enterOuterAlt(localctx, 1)
                self.state = 813
                self.port_reference()
                pass
            elif token in [Verilog2001Parser.T__18]:
                self.enterOuterAlt(localctx, 2)
                self.state = 814
                self.match(Verilog2001Parser.T__18)
                self.state = 815
                self.port_reference()
                self.state = 820
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 816
                    self.match(Verilog2001Parser.T__16)
                    self.state = 817
                    self.port_reference()
                    self.state = 822
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 823
                self.match(Verilog2001Parser.T__19)
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Port_referenceContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def port_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Port_identifierContext,0)


        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def range_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_port_reference

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPort_reference" ):
                listener.enterPort_reference(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPort_reference" ):
                listener.exitPort_reference(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPort_reference" ):
                return visitor.visitPort_reference(self)
            else:
                return visitor.visitChildren(self)




    def port_reference(self):

        localctx = Verilog2001Parser.Port_referenceContext(self, self._ctx, self.state)
        self.enterRule(localctx, 36, self.RULE_port_reference)
        try:
            self.state = 838
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,29,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 827
                self.port_identifier()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 828
                self.port_identifier()
                self.state = 829
                self.match(Verilog2001Parser.T__20)
                self.state = 830
                self.constant_expression()
                self.state = 831
                self.match(Verilog2001Parser.T__21)
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 833
                self.port_identifier()
                self.state = 834
                self.match(Verilog2001Parser.T__20)
                self.state = 835
                self.range_expression()
                self.state = 836
                self.match(Verilog2001Parser.T__21)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Port_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def inout_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Inout_declarationContext,0)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def input_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Input_declarationContext,0)


        def output_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Output_declarationContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_port_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPort_declaration" ):
                listener.enterPort_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPort_declaration" ):
                listener.exitPort_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPort_declaration" ):
                return visitor.visitPort_declaration(self)
            else:
                return visitor.visitChildren(self)




    def port_declaration(self):

        localctx = Verilog2001Parser.Port_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 38, self.RULE_port_declaration)
        self._la = 0 # Token type
        try:
            self.state = 861
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,33,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 843
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 840
                    self.attribute_instance()
                    self.state = 845
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 846
                self.inout_declaration()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 850
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 847
                    self.attribute_instance()
                    self.state = 852
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 853
                self.input_declaration()
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 857
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 854
                    self.attribute_instance()
                    self.state = 859
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 860
                self.output_declaration()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Module_itemContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def module_or_generate_item(self):
            return self.getTypedRuleContext(Verilog2001Parser.Module_or_generate_itemContext,0)


        def port_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Port_declarationContext,0)


        def generated_instantiation(self):
            return self.getTypedRuleContext(Verilog2001Parser.Generated_instantiationContext,0)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def local_parameter_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Local_parameter_declarationContext,0)


        def parameter_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Parameter_declarationContext,0)


        def specify_block(self):
            return self.getTypedRuleContext(Verilog2001Parser.Specify_blockContext,0)


        def specparam_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Specparam_declarationContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_module_item

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterModule_item" ):
                listener.enterModule_item(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitModule_item" ):
                listener.exitModule_item(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitModule_item" ):
                return visitor.visitModule_item(self)
            else:
                return visitor.visitChildren(self)




    def module_item(self):

        localctx = Verilog2001Parser.Module_itemContext(self, self._ctx, self.state)
        self.enterRule(localctx, 40, self.RULE_module_item)
        self._la = 0 # Token type
        try:
            self.state = 902
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,39,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 863
                self.module_or_generate_item()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 864
                self.port_declaration()
                self.state = 865
                self.match(Verilog2001Parser.T__1)
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 870
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 867
                    self.attribute_instance()
                    self.state = 872
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 873
                self.generated_instantiation()
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 877
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 874
                    self.attribute_instance()
                    self.state = 879
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 880
                self.local_parameter_declaration()
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 884
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 881
                    self.attribute_instance()
                    self.state = 886
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 887
                self.parameter_declaration()
                pass

            elif la_ == 6:
                self.enterOuterAlt(localctx, 6)
                self.state = 891
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 888
                    self.attribute_instance()
                    self.state = 893
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 894
                self.specify_block()
                pass

            elif la_ == 7:
                self.enterOuterAlt(localctx, 7)
                self.state = 898
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 895
                    self.attribute_instance()
                    self.state = 900
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 901
                self.specparam_declaration()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Module_or_generate_itemContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def module_or_generate_item_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Module_or_generate_item_declarationContext,0)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def parameter_override(self):
            return self.getTypedRuleContext(Verilog2001Parser.Parameter_overrideContext,0)


        def continuous_assign(self):
            return self.getTypedRuleContext(Verilog2001Parser.Continuous_assignContext,0)


        def gate_instantiation(self):
            return self.getTypedRuleContext(Verilog2001Parser.Gate_instantiationContext,0)


        def module_instantiation(self):
            return self.getTypedRuleContext(Verilog2001Parser.Module_instantiationContext,0)


        def initial_construct(self):
            return self.getTypedRuleContext(Verilog2001Parser.Initial_constructContext,0)


        def always_construct(self):
            return self.getTypedRuleContext(Verilog2001Parser.Always_constructContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_module_or_generate_item

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterModule_or_generate_item" ):
                listener.enterModule_or_generate_item(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitModule_or_generate_item" ):
                listener.exitModule_or_generate_item(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitModule_or_generate_item" ):
                return visitor.visitModule_or_generate_item(self)
            else:
                return visitor.visitChildren(self)




    def module_or_generate_item(self):

        localctx = Verilog2001Parser.Module_or_generate_itemContext(self, self._ctx, self.state)
        self.enterRule(localctx, 42, self.RULE_module_or_generate_item)
        self._la = 0 # Token type
        try:
            self.state = 953
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,47,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 907
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 904
                    self.attribute_instance()
                    self.state = 909
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 910
                self.module_or_generate_item_declaration()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 914
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 911
                    self.attribute_instance()
                    self.state = 916
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 917
                self.parameter_override()
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 921
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 918
                    self.attribute_instance()
                    self.state = 923
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 924
                self.continuous_assign()
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 928
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 925
                    self.attribute_instance()
                    self.state = 930
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 931
                self.gate_instantiation()
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 935
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 932
                    self.attribute_instance()
                    self.state = 937
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 938
                self.module_instantiation()
                pass

            elif la_ == 6:
                self.enterOuterAlt(localctx, 6)
                self.state = 942
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 939
                    self.attribute_instance()
                    self.state = 944
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 945
                self.initial_construct()
                pass

            elif la_ == 7:
                self.enterOuterAlt(localctx, 7)
                self.state = 949
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 946
                    self.attribute_instance()
                    self.state = 951
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 952
                self.always_construct()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Non_port_module_itemContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def generated_instantiation(self):
            return self.getTypedRuleContext(Verilog2001Parser.Generated_instantiationContext,0)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def local_parameter_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Local_parameter_declarationContext,0)


        def module_or_generate_item(self):
            return self.getTypedRuleContext(Verilog2001Parser.Module_or_generate_itemContext,0)


        def parameter_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Parameter_declarationContext,0)


        def specify_block(self):
            return self.getTypedRuleContext(Verilog2001Parser.Specify_blockContext,0)


        def specparam_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Specparam_declarationContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_non_port_module_item

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterNon_port_module_item" ):
                listener.enterNon_port_module_item(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitNon_port_module_item" ):
                listener.exitNon_port_module_item(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitNon_port_module_item" ):
                return visitor.visitNon_port_module_item(self)
            else:
                return visitor.visitChildren(self)




    def non_port_module_item(self):

        localctx = Verilog2001Parser.Non_port_module_itemContext(self, self._ctx, self.state)
        self.enterRule(localctx, 44, self.RULE_non_port_module_item)
        self._la = 0 # Token type
        try:
            self.state = 997
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,54,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 958
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 955
                    self.attribute_instance()
                    self.state = 960
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 961
                self.generated_instantiation()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 965
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 962
                    self.attribute_instance()
                    self.state = 967
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 968
                self.local_parameter_declaration()
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 972
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,50,self._ctx)
                while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                    if _alt==1:
                        self.state = 969
                        self.attribute_instance() 
                    self.state = 974
                    self._errHandler.sync(self)
                    _alt = self._interp.adaptivePredict(self._input,50,self._ctx)

                self.state = 975
                self.module_or_generate_item()
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 979
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 976
                    self.attribute_instance()
                    self.state = 981
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 982
                self.parameter_declaration()
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 986
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 983
                    self.attribute_instance()
                    self.state = 988
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 989
                self.specify_block()
                pass

            elif la_ == 6:
                self.enterOuterAlt(localctx, 6)
                self.state = 993
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 990
                    self.attribute_instance()
                    self.state = 995
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 996
                self.specparam_declaration()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Module_or_generate_item_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def net_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Net_declarationContext,0)


        def reg_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Reg_declarationContext,0)


        def integer_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Integer_declarationContext,0)


        def real_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Real_declarationContext,0)


        def time_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Time_declarationContext,0)


        def realtime_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Realtime_declarationContext,0)


        def event_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Event_declarationContext,0)


        def genvar_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Genvar_declarationContext,0)


        def task_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Task_declarationContext,0)


        def function_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Function_declarationContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_module_or_generate_item_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterModule_or_generate_item_declaration" ):
                listener.enterModule_or_generate_item_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitModule_or_generate_item_declaration" ):
                listener.exitModule_or_generate_item_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitModule_or_generate_item_declaration" ):
                return visitor.visitModule_or_generate_item_declaration(self)
            else:
                return visitor.visitChildren(self)




    def module_or_generate_item_declaration(self):

        localctx = Verilog2001Parser.Module_or_generate_item_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 46, self.RULE_module_or_generate_item_declaration)
        try:
            self.state = 1009
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__37, Verilog2001Parser.T__40, Verilog2001Parser.T__41, Verilog2001Parser.T__42, Verilog2001Parser.T__43, Verilog2001Parser.T__44, Verilog2001Parser.T__45, Verilog2001Parser.T__46, Verilog2001Parser.T__47, Verilog2001Parser.T__48, Verilog2001Parser.T__49]:
                self.enterOuterAlt(localctx, 1)
                self.state = 999
                self.net_declaration()
                pass
            elif token in [Verilog2001Parser.T__34]:
                self.enterOuterAlt(localctx, 2)
                self.state = 1000
                self.reg_declaration()
                pass
            elif token in [Verilog2001Parser.T__25]:
                self.enterOuterAlt(localctx, 3)
                self.state = 1001
                self.integer_declaration()
                pass
            elif token in [Verilog2001Parser.T__26]:
                self.enterOuterAlt(localctx, 4)
                self.state = 1002
                self.real_declaration()
                pass
            elif token in [Verilog2001Parser.T__28]:
                self.enterOuterAlt(localctx, 5)
                self.state = 1003
                self.time_declaration()
                pass
            elif token in [Verilog2001Parser.T__27]:
                self.enterOuterAlt(localctx, 6)
                self.state = 1004
                self.realtime_declaration()
                pass
            elif token in [Verilog2001Parser.T__35]:
                self.enterOuterAlt(localctx, 7)
                self.state = 1005
                self.event_declaration()
                pass
            elif token in [Verilog2001Parser.T__36]:
                self.enterOuterAlt(localctx, 8)
                self.state = 1006
                self.genvar_declaration()
                pass
            elif token in [Verilog2001Parser.T__68]:
                self.enterOuterAlt(localctx, 9)
                self.state = 1007
                self.task_declaration()
                pass
            elif token in [Verilog2001Parser.T__65]:
                self.enterOuterAlt(localctx, 10)
                self.state = 1008
                self.function_declaration()
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Parameter_overrideContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_param_assignments(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_param_assignmentsContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_parameter_override

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterParameter_override" ):
                listener.enterParameter_override(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitParameter_override" ):
                listener.exitParameter_override(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitParameter_override" ):
                return visitor.visitParameter_override(self)
            else:
                return visitor.visitChildren(self)




    def parameter_override(self):

        localctx = Verilog2001Parser.Parameter_overrideContext(self, self._ctx, self.state)
        self.enterRule(localctx, 48, self.RULE_parameter_override)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1011
            self.match(Verilog2001Parser.T__22)
            self.state = 1012
            self.list_of_param_assignments()
            self.state = 1013
            self.match(Verilog2001Parser.T__1)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Local_parameter_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_param_assignments(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_param_assignmentsContext,0)


        def range_(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_Context,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_local_parameter_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterLocal_parameter_declaration" ):
                listener.enterLocal_parameter_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitLocal_parameter_declaration" ):
                listener.exitLocal_parameter_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitLocal_parameter_declaration" ):
                return visitor.visitLocal_parameter_declaration(self)
            else:
                return visitor.visitChildren(self)




    def local_parameter_declaration(self):

        localctx = Verilog2001Parser.Local_parameter_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 50, self.RULE_local_parameter_declaration)
        self._la = 0 # Token type
        try:
            self.state = 1045
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,58,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 1015
                self.match(Verilog2001Parser.T__23)
                self.state = 1017
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__24:
                    self.state = 1016
                    self.match(Verilog2001Parser.T__24)


                self.state = 1020
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__20:
                    self.state = 1019
                    self.range_()


                self.state = 1022
                self.list_of_param_assignments()
                self.state = 1023
                self.match(Verilog2001Parser.T__1)
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 1025
                self.match(Verilog2001Parser.T__23)
                self.state = 1026
                self.match(Verilog2001Parser.T__25)
                self.state = 1027
                self.list_of_param_assignments()
                self.state = 1028
                self.match(Verilog2001Parser.T__1)
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 1030
                self.match(Verilog2001Parser.T__23)
                self.state = 1031
                self.match(Verilog2001Parser.T__26)
                self.state = 1032
                self.list_of_param_assignments()
                self.state = 1033
                self.match(Verilog2001Parser.T__1)
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 1035
                self.match(Verilog2001Parser.T__23)
                self.state = 1036
                self.match(Verilog2001Parser.T__27)
                self.state = 1037
                self.list_of_param_assignments()
                self.state = 1038
                self.match(Verilog2001Parser.T__1)
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 1040
                self.match(Verilog2001Parser.T__23)
                self.state = 1041
                self.match(Verilog2001Parser.T__28)
                self.state = 1042
                self.list_of_param_assignments()
                self.state = 1043
                self.match(Verilog2001Parser.T__1)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Parameter_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def parameter_declaration_(self):
            return self.getTypedRuleContext(Verilog2001Parser.Parameter_declaration_Context,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_parameter_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterParameter_declaration" ):
                listener.enterParameter_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitParameter_declaration" ):
                listener.exitParameter_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitParameter_declaration" ):
                return visitor.visitParameter_declaration(self)
            else:
                return visitor.visitChildren(self)




    def parameter_declaration(self):

        localctx = Verilog2001Parser.Parameter_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 52, self.RULE_parameter_declaration)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1047
            self.parameter_declaration_()
            self.state = 1048
            self.match(Verilog2001Parser.T__1)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Parameter_declaration_Context(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_param_assignments(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_param_assignmentsContext,0)


        def range_(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_Context,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_parameter_declaration_

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterParameter_declaration_" ):
                listener.enterParameter_declaration_(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitParameter_declaration_" ):
                listener.exitParameter_declaration_(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitParameter_declaration_" ):
                return visitor.visitParameter_declaration_(self)
            else:
                return visitor.visitChildren(self)




    def parameter_declaration_(self):

        localctx = Verilog2001Parser.Parameter_declaration_Context(self, self._ctx, self.state)
        self.enterRule(localctx, 54, self.RULE_parameter_declaration_)
        self._la = 0 # Token type
        try:
            self.state = 1070
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,61,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 1050
                self.match(Verilog2001Parser.T__29)
                self.state = 1052
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__24:
                    self.state = 1051
                    self.match(Verilog2001Parser.T__24)


                self.state = 1055
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__20:
                    self.state = 1054
                    self.range_()


                self.state = 1057
                self.list_of_param_assignments()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 1058
                self.match(Verilog2001Parser.T__29)
                self.state = 1059
                self.match(Verilog2001Parser.T__25)
                self.state = 1060
                self.list_of_param_assignments()
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 1061
                self.match(Verilog2001Parser.T__29)
                self.state = 1062
                self.match(Verilog2001Parser.T__26)
                self.state = 1063
                self.list_of_param_assignments()
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 1064
                self.match(Verilog2001Parser.T__29)
                self.state = 1065
                self.match(Verilog2001Parser.T__27)
                self.state = 1066
                self.list_of_param_assignments()
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 1067
                self.match(Verilog2001Parser.T__29)
                self.state = 1068
                self.match(Verilog2001Parser.T__28)
                self.state = 1069
                self.list_of_param_assignments()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Specparam_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_specparam_assignments(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_specparam_assignmentsContext,0)


        def range_(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_Context,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_specparam_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterSpecparam_declaration" ):
                listener.enterSpecparam_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitSpecparam_declaration" ):
                listener.exitSpecparam_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitSpecparam_declaration" ):
                return visitor.visitSpecparam_declaration(self)
            else:
                return visitor.visitChildren(self)




    def specparam_declaration(self):

        localctx = Verilog2001Parser.Specparam_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 56, self.RULE_specparam_declaration)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1072
            self.match(Verilog2001Parser.T__30)
            self.state = 1074
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__20:
                self.state = 1073
                self.range_()


            self.state = 1076
            self.list_of_specparam_assignments()
            self.state = 1077
            self.match(Verilog2001Parser.T__1)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Inout_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_port_identifiers(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_port_identifiersContext,0)


        def net_type(self):
            return self.getTypedRuleContext(Verilog2001Parser.Net_typeContext,0)


        def range_(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_Context,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_inout_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterInout_declaration" ):
                listener.enterInout_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitInout_declaration" ):
                listener.exitInout_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitInout_declaration" ):
                return visitor.visitInout_declaration(self)
            else:
                return visitor.visitChildren(self)




    def inout_declaration(self):

        localctx = Verilog2001Parser.Inout_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 58, self.RULE_inout_declaration)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1079
            self.match(Verilog2001Parser.T__31)
            self.state = 1081
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__40) | (1 << Verilog2001Parser.T__41) | (1 << Verilog2001Parser.T__42) | (1 << Verilog2001Parser.T__43) | (1 << Verilog2001Parser.T__44) | (1 << Verilog2001Parser.T__45) | (1 << Verilog2001Parser.T__46) | (1 << Verilog2001Parser.T__47) | (1 << Verilog2001Parser.T__48) | (1 << Verilog2001Parser.T__49))) != 0):
                self.state = 1080
                self.net_type()


            self.state = 1084
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__24:
                self.state = 1083
                self.match(Verilog2001Parser.T__24)


            self.state = 1087
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__20:
                self.state = 1086
                self.range_()


            self.state = 1089
            self.list_of_port_identifiers()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Input_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_port_identifiers(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_port_identifiersContext,0)


        def net_type(self):
            return self.getTypedRuleContext(Verilog2001Parser.Net_typeContext,0)


        def range_(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_Context,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_input_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterInput_declaration" ):
                listener.enterInput_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitInput_declaration" ):
                listener.exitInput_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitInput_declaration" ):
                return visitor.visitInput_declaration(self)
            else:
                return visitor.visitChildren(self)




    def input_declaration(self):

        localctx = Verilog2001Parser.Input_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 60, self.RULE_input_declaration)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1091
            self.match(Verilog2001Parser.T__32)
            self.state = 1093
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__40) | (1 << Verilog2001Parser.T__41) | (1 << Verilog2001Parser.T__42) | (1 << Verilog2001Parser.T__43) | (1 << Verilog2001Parser.T__44) | (1 << Verilog2001Parser.T__45) | (1 << Verilog2001Parser.T__46) | (1 << Verilog2001Parser.T__47) | (1 << Verilog2001Parser.T__48) | (1 << Verilog2001Parser.T__49))) != 0):
                self.state = 1092
                self.net_type()


            self.state = 1096
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__24:
                self.state = 1095
                self.match(Verilog2001Parser.T__24)


            self.state = 1099
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__20:
                self.state = 1098
                self.range_()


            self.state = 1101
            self.list_of_port_identifiers()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Output_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_port_identifiers(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_port_identifiersContext,0)


        def net_type(self):
            return self.getTypedRuleContext(Verilog2001Parser.Net_typeContext,0)


        def range_(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_Context,0)


        def list_of_variable_port_identifiers(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_variable_port_identifiersContext,0)


        def output_variable_type(self):
            return self.getTypedRuleContext(Verilog2001Parser.Output_variable_typeContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_output_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterOutput_declaration" ):
                listener.enterOutput_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitOutput_declaration" ):
                listener.exitOutput_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitOutput_declaration" ):
                return visitor.visitOutput_declaration(self)
            else:
                return visitor.visitChildren(self)




    def output_declaration(self):

        localctx = Verilog2001Parser.Output_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 62, self.RULE_output_declaration)
        self._la = 0 # Token type
        try:
            self.state = 1143
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,78,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 1103
                self.match(Verilog2001Parser.T__33)
                self.state = 1105
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__40) | (1 << Verilog2001Parser.T__41) | (1 << Verilog2001Parser.T__42) | (1 << Verilog2001Parser.T__43) | (1 << Verilog2001Parser.T__44) | (1 << Verilog2001Parser.T__45) | (1 << Verilog2001Parser.T__46) | (1 << Verilog2001Parser.T__47) | (1 << Verilog2001Parser.T__48) | (1 << Verilog2001Parser.T__49))) != 0):
                    self.state = 1104
                    self.net_type()


                self.state = 1108
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__24:
                    self.state = 1107
                    self.match(Verilog2001Parser.T__24)


                self.state = 1111
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__20:
                    self.state = 1110
                    self.range_()


                self.state = 1113
                self.list_of_port_identifiers()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 1114
                self.match(Verilog2001Parser.T__33)
                self.state = 1116
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__34:
                    self.state = 1115
                    self.match(Verilog2001Parser.T__34)


                self.state = 1119
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__24:
                    self.state = 1118
                    self.match(Verilog2001Parser.T__24)


                self.state = 1122
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__20:
                    self.state = 1121
                    self.range_()


                self.state = 1124
                self.list_of_port_identifiers()
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 1125
                self.match(Verilog2001Parser.T__33)
                self.state = 1126
                self.match(Verilog2001Parser.T__34)
                self.state = 1128
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__24:
                    self.state = 1127
                    self.match(Verilog2001Parser.T__24)


                self.state = 1131
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__20:
                    self.state = 1130
                    self.range_()


                self.state = 1133
                self.list_of_variable_port_identifiers()
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 1134
                self.match(Verilog2001Parser.T__33)
                self.state = 1136
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__25 or _la==Verilog2001Parser.T__28:
                    self.state = 1135
                    self.output_variable_type()


                self.state = 1138
                self.list_of_port_identifiers()
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 1139
                self.match(Verilog2001Parser.T__33)
                self.state = 1140
                self.output_variable_type()
                self.state = 1141
                self.list_of_variable_port_identifiers()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Event_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_event_identifiers(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_event_identifiersContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_event_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterEvent_declaration" ):
                listener.enterEvent_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitEvent_declaration" ):
                listener.exitEvent_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitEvent_declaration" ):
                return visitor.visitEvent_declaration(self)
            else:
                return visitor.visitChildren(self)




    def event_declaration(self):

        localctx = Verilog2001Parser.Event_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 64, self.RULE_event_declaration)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1145
            self.match(Verilog2001Parser.T__35)
            self.state = 1146
            self.list_of_event_identifiers()
            self.state = 1147
            self.match(Verilog2001Parser.T__1)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Genvar_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_genvar_identifiers(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_genvar_identifiersContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_genvar_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterGenvar_declaration" ):
                listener.enterGenvar_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitGenvar_declaration" ):
                listener.exitGenvar_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitGenvar_declaration" ):
                return visitor.visitGenvar_declaration(self)
            else:
                return visitor.visitChildren(self)




    def genvar_declaration(self):

        localctx = Verilog2001Parser.Genvar_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 66, self.RULE_genvar_declaration)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1149
            self.match(Verilog2001Parser.T__36)
            self.state = 1150
            self.list_of_genvar_identifiers()
            self.state = 1151
            self.match(Verilog2001Parser.T__1)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Integer_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_variable_identifiers(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_variable_identifiersContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_integer_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterInteger_declaration" ):
                listener.enterInteger_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitInteger_declaration" ):
                listener.exitInteger_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitInteger_declaration" ):
                return visitor.visitInteger_declaration(self)
            else:
                return visitor.visitChildren(self)




    def integer_declaration(self):

        localctx = Verilog2001Parser.Integer_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 68, self.RULE_integer_declaration)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1153
            self.match(Verilog2001Parser.T__25)
            self.state = 1154
            self.list_of_variable_identifiers()
            self.state = 1155
            self.match(Verilog2001Parser.T__1)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Time_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_variable_identifiers(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_variable_identifiersContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_time_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTime_declaration" ):
                listener.enterTime_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTime_declaration" ):
                listener.exitTime_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTime_declaration" ):
                return visitor.visitTime_declaration(self)
            else:
                return visitor.visitChildren(self)




    def time_declaration(self):

        localctx = Verilog2001Parser.Time_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 70, self.RULE_time_declaration)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1157
            self.match(Verilog2001Parser.T__28)
            self.state = 1158
            self.list_of_variable_identifiers()
            self.state = 1159
            self.match(Verilog2001Parser.T__1)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Real_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_real_identifiers(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_real_identifiersContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_real_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterReal_declaration" ):
                listener.enterReal_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitReal_declaration" ):
                listener.exitReal_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitReal_declaration" ):
                return visitor.visitReal_declaration(self)
            else:
                return visitor.visitChildren(self)




    def real_declaration(self):

        localctx = Verilog2001Parser.Real_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 72, self.RULE_real_declaration)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1161
            self.match(Verilog2001Parser.T__26)
            self.state = 1162
            self.list_of_real_identifiers()
            self.state = 1163
            self.match(Verilog2001Parser.T__1)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Realtime_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_real_identifiers(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_real_identifiersContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_realtime_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterRealtime_declaration" ):
                listener.enterRealtime_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitRealtime_declaration" ):
                listener.exitRealtime_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitRealtime_declaration" ):
                return visitor.visitRealtime_declaration(self)
            else:
                return visitor.visitChildren(self)




    def realtime_declaration(self):

        localctx = Verilog2001Parser.Realtime_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 74, self.RULE_realtime_declaration)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1165
            self.match(Verilog2001Parser.T__27)
            self.state = 1166
            self.list_of_real_identifiers()
            self.state = 1167
            self.match(Verilog2001Parser.T__1)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Reg_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_variable_identifiers(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_variable_identifiersContext,0)


        def range_(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_Context,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_reg_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterReg_declaration" ):
                listener.enterReg_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitReg_declaration" ):
                listener.exitReg_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitReg_declaration" ):
                return visitor.visitReg_declaration(self)
            else:
                return visitor.visitChildren(self)




    def reg_declaration(self):

        localctx = Verilog2001Parser.Reg_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 76, self.RULE_reg_declaration)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1169
            self.match(Verilog2001Parser.T__34)
            self.state = 1171
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__24:
                self.state = 1170
                self.match(Verilog2001Parser.T__24)


            self.state = 1174
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__20:
                self.state = 1173
                self.range_()


            self.state = 1176
            self.list_of_variable_identifiers()
            self.state = 1177
            self.match(Verilog2001Parser.T__1)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Net_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def net_type(self):
            return self.getTypedRuleContext(Verilog2001Parser.Net_typeContext,0)


        def list_of_net_identifiers(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_net_identifiersContext,0)


        def delay3(self):
            return self.getTypedRuleContext(Verilog2001Parser.Delay3Context,0)


        def list_of_net_decl_assignments(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_net_decl_assignmentsContext,0)


        def drive_strength(self):
            return self.getTypedRuleContext(Verilog2001Parser.Drive_strengthContext,0)


        def charge_strength(self):
            return self.getTypedRuleContext(Verilog2001Parser.Charge_strengthContext,0)


        def range_(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_Context,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_net_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterNet_declaration" ):
                listener.enterNet_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitNet_declaration" ):
                listener.exitNet_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitNet_declaration" ):
                return visitor.visitNet_declaration(self)
            else:
                return visitor.visitChildren(self)




    def net_declaration(self):

        localctx = Verilog2001Parser.Net_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 78, self.RULE_net_declaration)
        self._la = 0 # Token type
        try:
            self.state = 1293
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,107,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 1179
                self.net_type()
                self.state = 1181
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__24:
                    self.state = 1180
                    self.match(Verilog2001Parser.T__24)


                self.state = 1184
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__14:
                    self.state = 1183
                    self.delay3()


                self.state = 1186
                self.list_of_net_identifiers()
                self.state = 1187
                self.match(Verilog2001Parser.T__1)
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 1189
                self.net_type()
                self.state = 1191
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__15:
                    self.state = 1190
                    self.drive_strength()


                self.state = 1194
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__24:
                    self.state = 1193
                    self.match(Verilog2001Parser.T__24)


                self.state = 1197
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__14:
                    self.state = 1196
                    self.delay3()


                self.state = 1199
                self.list_of_net_decl_assignments()
                self.state = 1200
                self.match(Verilog2001Parser.T__1)
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 1202
                self.match(Verilog2001Parser.T__37)
                self.state = 1204
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__15:
                    self.state = 1203
                    self.drive_strength()


                self.state = 1207
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__24:
                    self.state = 1206
                    self.match(Verilog2001Parser.T__24)


                self.state = 1210
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__14:
                    self.state = 1209
                    self.delay3()


                self.state = 1212
                self.list_of_net_decl_assignments()
                self.state = 1213
                self.match(Verilog2001Parser.T__1)
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 1215
                self.match(Verilog2001Parser.T__37)
                self.state = 1217
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__15:
                    self.state = 1216
                    self.charge_strength()


                self.state = 1220
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__24:
                    self.state = 1219
                    self.match(Verilog2001Parser.T__24)


                self.state = 1223
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__14:
                    self.state = 1222
                    self.delay3()


                self.state = 1225
                self.list_of_net_identifiers()
                self.state = 1226
                self.match(Verilog2001Parser.T__1)
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 1228
                self.match(Verilog2001Parser.T__37)
                self.state = 1230
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__15:
                    self.state = 1229
                    self.charge_strength()


                self.state = 1233
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__38 or _la==Verilog2001Parser.T__39:
                    self.state = 1232
                    _la = self._input.LA(1)
                    if not(_la==Verilog2001Parser.T__38 or _la==Verilog2001Parser.T__39):
                        self._errHandler.recoverInline(self)
                    else:
                        self._errHandler.reportMatch(self)
                        self.consume()


                self.state = 1236
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__24:
                    self.state = 1235
                    self.match(Verilog2001Parser.T__24)


                self.state = 1238
                self.range_()
                self.state = 1240
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__14:
                    self.state = 1239
                    self.delay3()


                self.state = 1242
                self.list_of_net_identifiers()
                self.state = 1243
                self.match(Verilog2001Parser.T__1)
                pass

            elif la_ == 6:
                self.enterOuterAlt(localctx, 6)
                self.state = 1245
                self.match(Verilog2001Parser.T__37)
                self.state = 1247
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__15:
                    self.state = 1246
                    self.drive_strength()


                self.state = 1250
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__38 or _la==Verilog2001Parser.T__39:
                    self.state = 1249
                    _la = self._input.LA(1)
                    if not(_la==Verilog2001Parser.T__38 or _la==Verilog2001Parser.T__39):
                        self._errHandler.recoverInline(self)
                    else:
                        self._errHandler.reportMatch(self)
                        self.consume()


                self.state = 1253
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__24:
                    self.state = 1252
                    self.match(Verilog2001Parser.T__24)


                self.state = 1255
                self.range_()
                self.state = 1257
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__14:
                    self.state = 1256
                    self.delay3()


                self.state = 1259
                self.list_of_net_decl_assignments()
                self.state = 1260
                self.match(Verilog2001Parser.T__1)
                pass

            elif la_ == 7:
                self.enterOuterAlt(localctx, 7)
                self.state = 1262
                self.net_type()
                self.state = 1264
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__15:
                    self.state = 1263
                    self.drive_strength()


                self.state = 1267
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__38 or _la==Verilog2001Parser.T__39:
                    self.state = 1266
                    _la = self._input.LA(1)
                    if not(_la==Verilog2001Parser.T__38 or _la==Verilog2001Parser.T__39):
                        self._errHandler.recoverInline(self)
                    else:
                        self._errHandler.reportMatch(self)
                        self.consume()


                self.state = 1270
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__24:
                    self.state = 1269
                    self.match(Verilog2001Parser.T__24)


                self.state = 1272
                self.range_()
                self.state = 1274
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__14:
                    self.state = 1273
                    self.delay3()


                self.state = 1276
                self.list_of_net_decl_assignments()
                self.state = 1277
                self.match(Verilog2001Parser.T__1)
                pass

            elif la_ == 8:
                self.enterOuterAlt(localctx, 8)
                self.state = 1279
                self.net_type()
                self.state = 1281
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__38 or _la==Verilog2001Parser.T__39:
                    self.state = 1280
                    _la = self._input.LA(1)
                    if not(_la==Verilog2001Parser.T__38 or _la==Verilog2001Parser.T__39):
                        self._errHandler.recoverInline(self)
                    else:
                        self._errHandler.reportMatch(self)
                        self.consume()


                self.state = 1284
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__24:
                    self.state = 1283
                    self.match(Verilog2001Parser.T__24)


                self.state = 1286
                self.range_()
                self.state = 1288
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__14:
                    self.state = 1287
                    self.delay3()


                self.state = 1290
                self.list_of_net_identifiers()
                self.state = 1291
                self.match(Verilog2001Parser.T__1)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Net_typeContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_net_type

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterNet_type" ):
                listener.enterNet_type(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitNet_type" ):
                listener.exitNet_type(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitNet_type" ):
                return visitor.visitNet_type(self)
            else:
                return visitor.visitChildren(self)




    def net_type(self):

        localctx = Verilog2001Parser.Net_typeContext(self, self._ctx, self.state)
        self.enterRule(localctx, 80, self.RULE_net_type)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1295
            _la = self._input.LA(1)
            if not((((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__40) | (1 << Verilog2001Parser.T__41) | (1 << Verilog2001Parser.T__42) | (1 << Verilog2001Parser.T__43) | (1 << Verilog2001Parser.T__44) | (1 << Verilog2001Parser.T__45) | (1 << Verilog2001Parser.T__46) | (1 << Verilog2001Parser.T__47) | (1 << Verilog2001Parser.T__48) | (1 << Verilog2001Parser.T__49))) != 0)):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Output_variable_typeContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_output_variable_type

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterOutput_variable_type" ):
                listener.enterOutput_variable_type(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitOutput_variable_type" ):
                listener.exitOutput_variable_type(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitOutput_variable_type" ):
                return visitor.visitOutput_variable_type(self)
            else:
                return visitor.visitChildren(self)




    def output_variable_type(self):

        localctx = Verilog2001Parser.Output_variable_typeContext(self, self._ctx, self.state)
        self.enterRule(localctx, 82, self.RULE_output_variable_type)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1297
            _la = self._input.LA(1)
            if not(_la==Verilog2001Parser.T__25 or _la==Verilog2001Parser.T__28):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Real_typeContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def real_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Real_identifierContext,0)


        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def dimension(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.DimensionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.DimensionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_real_type

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterReal_type" ):
                listener.enterReal_type(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitReal_type" ):
                listener.exitReal_type(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitReal_type" ):
                return visitor.visitReal_type(self)
            else:
                return visitor.visitChildren(self)




    def real_type(self):

        localctx = Verilog2001Parser.Real_typeContext(self, self._ctx, self.state)
        self.enterRule(localctx, 84, self.RULE_real_type)
        self._la = 0 # Token type
        try:
            self.state = 1312
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,110,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 1299
                self.real_identifier()
                self.state = 1302
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__50:
                    self.state = 1300
                    self.match(Verilog2001Parser.T__50)
                    self.state = 1301
                    self.constant_expression()


                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 1304
                self.real_identifier()
                self.state = 1305
                self.dimension()
                self.state = 1309
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__20:
                    self.state = 1306
                    self.dimension()
                    self.state = 1311
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Variable_typeContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def variable_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Variable_identifierContext,0)


        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def dimension(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.DimensionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.DimensionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_variable_type

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterVariable_type" ):
                listener.enterVariable_type(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitVariable_type" ):
                listener.exitVariable_type(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitVariable_type" ):
                return visitor.visitVariable_type(self)
            else:
                return visitor.visitChildren(self)




    def variable_type(self):

        localctx = Verilog2001Parser.Variable_typeContext(self, self._ctx, self.state)
        self.enterRule(localctx, 86, self.RULE_variable_type)
        self._la = 0 # Token type
        try:
            self.state = 1327
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,113,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 1314
                self.variable_identifier()
                self.state = 1317
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__50:
                    self.state = 1315
                    self.match(Verilog2001Parser.T__50)
                    self.state = 1316
                    self.constant_expression()


                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 1319
                self.variable_identifier()
                self.state = 1320
                self.dimension()
                self.state = 1324
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__20:
                    self.state = 1321
                    self.dimension()
                    self.state = 1326
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Drive_strengthContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def strength0(self):
            return self.getTypedRuleContext(Verilog2001Parser.Strength0Context,0)


        def strength1(self):
            return self.getTypedRuleContext(Verilog2001Parser.Strength1Context,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_drive_strength

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterDrive_strength" ):
                listener.enterDrive_strength(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitDrive_strength" ):
                listener.exitDrive_strength(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitDrive_strength" ):
                return visitor.visitDrive_strength(self)
            else:
                return visitor.visitChildren(self)




    def drive_strength(self):

        localctx = Verilog2001Parser.Drive_strengthContext(self, self._ctx, self.state)
        self.enterRule(localctx, 88, self.RULE_drive_strength)
        try:
            self.state = 1365
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,114,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 1329
                self.match(Verilog2001Parser.T__15)
                self.state = 1330
                self.strength0()
                self.state = 1331
                self.match(Verilog2001Parser.T__16)
                self.state = 1332
                self.strength1()
                self.state = 1333
                self.match(Verilog2001Parser.T__17)
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 1335
                self.match(Verilog2001Parser.T__15)
                self.state = 1336
                self.strength1()
                self.state = 1337
                self.match(Verilog2001Parser.T__16)
                self.state = 1338
                self.strength0()
                self.state = 1339
                self.match(Verilog2001Parser.T__17)
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 1341
                self.match(Verilog2001Parser.T__15)
                self.state = 1342
                self.strength0()
                self.state = 1343
                self.match(Verilog2001Parser.T__16)
                self.state = 1344
                self.match(Verilog2001Parser.T__51)
                self.state = 1345
                self.match(Verilog2001Parser.T__17)
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 1347
                self.match(Verilog2001Parser.T__15)
                self.state = 1348
                self.strength1()
                self.state = 1349
                self.match(Verilog2001Parser.T__16)
                self.state = 1350
                self.match(Verilog2001Parser.T__52)
                self.state = 1351
                self.match(Verilog2001Parser.T__17)
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 1353
                self.match(Verilog2001Parser.T__15)
                self.state = 1354
                self.match(Verilog2001Parser.T__52)
                self.state = 1355
                self.match(Verilog2001Parser.T__16)
                self.state = 1356
                self.strength1()
                self.state = 1357
                self.match(Verilog2001Parser.T__17)
                pass

            elif la_ == 6:
                self.enterOuterAlt(localctx, 6)
                self.state = 1359
                self.match(Verilog2001Parser.T__15)
                self.state = 1360
                self.match(Verilog2001Parser.T__51)
                self.state = 1361
                self.match(Verilog2001Parser.T__16)
                self.state = 1362
                self.strength0()
                self.state = 1363
                self.match(Verilog2001Parser.T__17)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Strength0Context(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_strength0

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterStrength0" ):
                listener.enterStrength0(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitStrength0" ):
                listener.exitStrength0(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitStrength0" ):
                return visitor.visitStrength0(self)
            else:
                return visitor.visitChildren(self)




    def strength0(self):

        localctx = Verilog2001Parser.Strength0Context(self, self._ctx, self.state)
        self.enterRule(localctx, 90, self.RULE_strength0)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1367
            _la = self._input.LA(1)
            if not((((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__40) | (1 << Verilog2001Parser.T__53) | (1 << Verilog2001Parser.T__54) | (1 << Verilog2001Parser.T__55))) != 0)):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Strength1Context(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_strength1

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterStrength1" ):
                listener.enterStrength1(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitStrength1" ):
                listener.exitStrength1(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitStrength1" ):
                return visitor.visitStrength1(self)
            else:
                return visitor.visitChildren(self)




    def strength1(self):

        localctx = Verilog2001Parser.Strength1Context(self, self._ctx, self.state)
        self.enterRule(localctx, 92, self.RULE_strength1)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1369
            _la = self._input.LA(1)
            if not((((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__41) | (1 << Verilog2001Parser.T__56) | (1 << Verilog2001Parser.T__57) | (1 << Verilog2001Parser.T__58))) != 0)):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Charge_strengthContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_charge_strength

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterCharge_strength" ):
                listener.enterCharge_strength(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitCharge_strength" ):
                listener.exitCharge_strength(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitCharge_strength" ):
                return visitor.visitCharge_strength(self)
            else:
                return visitor.visitChildren(self)




    def charge_strength(self):

        localctx = Verilog2001Parser.Charge_strengthContext(self, self._ctx, self.state)
        self.enterRule(localctx, 94, self.RULE_charge_strength)
        try:
            self.state = 1380
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,115,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 1371
                self.match(Verilog2001Parser.T__15)
                self.state = 1372
                self.match(Verilog2001Parser.T__59)
                self.state = 1373
                self.match(Verilog2001Parser.T__17)
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 1374
                self.match(Verilog2001Parser.T__15)
                self.state = 1375
                self.match(Verilog2001Parser.T__60)
                self.state = 1376
                self.match(Verilog2001Parser.T__17)
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 1377
                self.match(Verilog2001Parser.T__15)
                self.state = 1378
                self.match(Verilog2001Parser.T__61)
                self.state = 1379
                self.match(Verilog2001Parser.T__17)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Delay3Context(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def delay_value(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Delay_valueContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Delay_valueContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_delay3

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterDelay3" ):
                listener.enterDelay3(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitDelay3" ):
                listener.exitDelay3(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitDelay3" ):
                return visitor.visitDelay3(self)
            else:
                return visitor.visitChildren(self)




    def delay3(self):

        localctx = Verilog2001Parser.Delay3Context(self, self._ctx, self.state)
        self.enterRule(localctx, 96, self.RULE_delay3)
        self._la = 0 # Token type
        try:
            self.state = 1397
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,118,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 1382
                self.match(Verilog2001Parser.T__14)
                self.state = 1383
                self.delay_value()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 1384
                self.match(Verilog2001Parser.T__14)
                self.state = 1385
                self.match(Verilog2001Parser.T__15)
                self.state = 1386
                self.delay_value()
                self.state = 1393
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__16:
                    self.state = 1387
                    self.match(Verilog2001Parser.T__16)
                    self.state = 1388
                    self.delay_value()
                    self.state = 1391
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)
                    if _la==Verilog2001Parser.T__16:
                        self.state = 1389
                        self.match(Verilog2001Parser.T__16)
                        self.state = 1390
                        self.delay_value()




                self.state = 1395
                self.match(Verilog2001Parser.T__17)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Delay2Context(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def delay_value(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Delay_valueContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Delay_valueContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_delay2

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterDelay2" ):
                listener.enterDelay2(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitDelay2" ):
                listener.exitDelay2(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitDelay2" ):
                return visitor.visitDelay2(self)
            else:
                return visitor.visitChildren(self)




    def delay2(self):

        localctx = Verilog2001Parser.Delay2Context(self, self._ctx, self.state)
        self.enterRule(localctx, 98, self.RULE_delay2)
        self._la = 0 # Token type
        try:
            self.state = 1410
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,120,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 1399
                self.match(Verilog2001Parser.T__14)
                self.state = 1400
                self.delay_value()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 1401
                self.match(Verilog2001Parser.T__14)
                self.state = 1402
                self.match(Verilog2001Parser.T__15)
                self.state = 1403
                self.delay_value()
                self.state = 1406
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__16:
                    self.state = 1404
                    self.match(Verilog2001Parser.T__16)
                    self.state = 1405
                    self.delay_value()


                self.state = 1408
                self.match(Verilog2001Parser.T__17)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Delay_valueContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def Decimal_number(self):
            return self.getToken(Verilog2001Parser.Decimal_number, 0)

        def parameter_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Parameter_identifierContext,0)


        def specparam_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Specparam_identifierContext,0)


        def mintypmax_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Mintypmax_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_delay_value

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterDelay_value" ):
                listener.enterDelay_value(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitDelay_value" ):
                listener.exitDelay_value(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitDelay_value" ):
                return visitor.visitDelay_value(self)
            else:
                return visitor.visitChildren(self)




    def delay_value(self):

        localctx = Verilog2001Parser.Delay_valueContext(self, self._ctx, self.state)
        self.enterRule(localctx, 100, self.RULE_delay_value)
        try:
            self.state = 1416
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,121,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 1412
                self.match(Verilog2001Parser.Decimal_number)
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 1413
                self.parameter_identifier()
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 1414
                self.specparam_identifier()
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 1415
                self.mintypmax_expression()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class List_of_event_identifiersContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def event_identifier(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Event_identifierContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Event_identifierContext,i)


        def dimension(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.DimensionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.DimensionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_list_of_event_identifiers

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterList_of_event_identifiers" ):
                listener.enterList_of_event_identifiers(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitList_of_event_identifiers" ):
                listener.exitList_of_event_identifiers(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitList_of_event_identifiers" ):
                return visitor.visitList_of_event_identifiers(self)
            else:
                return visitor.visitChildren(self)




    def list_of_event_identifiers(self):

        localctx = Verilog2001Parser.List_of_event_identifiersContext(self, self._ctx, self.state)
        self.enterRule(localctx, 102, self.RULE_list_of_event_identifiers)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1418
            self.event_identifier()
            self.state = 1426
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__20:
                self.state = 1419
                self.dimension()
                self.state = 1423
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__20:
                    self.state = 1420
                    self.dimension()
                    self.state = 1425
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)



            self.state = 1441
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 1428
                self.match(Verilog2001Parser.T__16)
                self.state = 1429
                self.event_identifier()
                self.state = 1437
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__20:
                    self.state = 1430
                    self.dimension()
                    self.state = 1434
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)
                    while _la==Verilog2001Parser.T__20:
                        self.state = 1431
                        self.dimension()
                        self.state = 1436
                        self._errHandler.sync(self)
                        _la = self._input.LA(1)



                self.state = 1443
                self._errHandler.sync(self)
                _la = self._input.LA(1)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class List_of_net_identifiersContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def net_identifier(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Net_identifierContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Net_identifierContext,i)


        def dimension(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.DimensionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.DimensionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_list_of_net_identifiers

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterList_of_net_identifiers" ):
                listener.enterList_of_net_identifiers(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitList_of_net_identifiers" ):
                listener.exitList_of_net_identifiers(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitList_of_net_identifiers" ):
                return visitor.visitList_of_net_identifiers(self)
            else:
                return visitor.visitChildren(self)




    def list_of_net_identifiers(self):

        localctx = Verilog2001Parser.List_of_net_identifiersContext(self, self._ctx, self.state)
        self.enterRule(localctx, 104, self.RULE_list_of_net_identifiers)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1444
            self.net_identifier()
            self.state = 1452
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__20:
                self.state = 1445
                self.dimension()
                self.state = 1449
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__20:
                    self.state = 1446
                    self.dimension()
                    self.state = 1451
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)



            self.state = 1467
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 1454
                self.match(Verilog2001Parser.T__16)
                self.state = 1455
                self.net_identifier()
                self.state = 1463
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__20:
                    self.state = 1456
                    self.dimension()
                    self.state = 1460
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)
                    while _la==Verilog2001Parser.T__20:
                        self.state = 1457
                        self.dimension()
                        self.state = 1462
                        self._errHandler.sync(self)
                        _la = self._input.LA(1)



                self.state = 1469
                self._errHandler.sync(self)
                _la = self._input.LA(1)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class List_of_genvar_identifiersContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def genvar_identifier(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Genvar_identifierContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Genvar_identifierContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_list_of_genvar_identifiers

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterList_of_genvar_identifiers" ):
                listener.enterList_of_genvar_identifiers(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitList_of_genvar_identifiers" ):
                listener.exitList_of_genvar_identifiers(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitList_of_genvar_identifiers" ):
                return visitor.visitList_of_genvar_identifiers(self)
            else:
                return visitor.visitChildren(self)




    def list_of_genvar_identifiers(self):

        localctx = Verilog2001Parser.List_of_genvar_identifiersContext(self, self._ctx, self.state)
        self.enterRule(localctx, 106, self.RULE_list_of_genvar_identifiers)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1470
            self.genvar_identifier()
            self.state = 1475
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 1471
                self.match(Verilog2001Parser.T__16)
                self.state = 1472
                self.genvar_identifier()
                self.state = 1477
                self._errHandler.sync(self)
                _la = self._input.LA(1)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class List_of_port_identifiersContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def port_identifier(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Port_identifierContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Port_identifierContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_list_of_port_identifiers

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterList_of_port_identifiers" ):
                listener.enterList_of_port_identifiers(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitList_of_port_identifiers" ):
                listener.exitList_of_port_identifiers(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitList_of_port_identifiers" ):
                return visitor.visitList_of_port_identifiers(self)
            else:
                return visitor.visitChildren(self)




    def list_of_port_identifiers(self):

        localctx = Verilog2001Parser.List_of_port_identifiersContext(self, self._ctx, self.state)
        self.enterRule(localctx, 108, self.RULE_list_of_port_identifiers)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1478
            self.port_identifier()
            self.state = 1483
            self._errHandler.sync(self)
            _alt = self._interp.adaptivePredict(self._input,133,self._ctx)
            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                if _alt==1:
                    self.state = 1479
                    self.match(Verilog2001Parser.T__16)
                    self.state = 1480
                    self.port_identifier() 
                self.state = 1485
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,133,self._ctx)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class List_of_net_decl_assignmentsContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def net_decl_assignment(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Net_decl_assignmentContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Net_decl_assignmentContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_list_of_net_decl_assignments

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterList_of_net_decl_assignments" ):
                listener.enterList_of_net_decl_assignments(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitList_of_net_decl_assignments" ):
                listener.exitList_of_net_decl_assignments(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitList_of_net_decl_assignments" ):
                return visitor.visitList_of_net_decl_assignments(self)
            else:
                return visitor.visitChildren(self)




    def list_of_net_decl_assignments(self):

        localctx = Verilog2001Parser.List_of_net_decl_assignmentsContext(self, self._ctx, self.state)
        self.enterRule(localctx, 110, self.RULE_list_of_net_decl_assignments)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1486
            self.net_decl_assignment()
            self.state = 1491
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 1487
                self.match(Verilog2001Parser.T__16)
                self.state = 1488
                self.net_decl_assignment()
                self.state = 1493
                self._errHandler.sync(self)
                _la = self._input.LA(1)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class List_of_param_assignmentsContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def param_assignment(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Param_assignmentContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Param_assignmentContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_list_of_param_assignments

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterList_of_param_assignments" ):
                listener.enterList_of_param_assignments(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitList_of_param_assignments" ):
                listener.exitList_of_param_assignments(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitList_of_param_assignments" ):
                return visitor.visitList_of_param_assignments(self)
            else:
                return visitor.visitChildren(self)




    def list_of_param_assignments(self):

        localctx = Verilog2001Parser.List_of_param_assignmentsContext(self, self._ctx, self.state)
        self.enterRule(localctx, 112, self.RULE_list_of_param_assignments)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1494
            self.param_assignment()
            self.state = 1499
            self._errHandler.sync(self)
            _alt = self._interp.adaptivePredict(self._input,135,self._ctx)
            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                if _alt==1:
                    self.state = 1495
                    self.match(Verilog2001Parser.T__16)
                    self.state = 1496
                    self.param_assignment() 
                self.state = 1501
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,135,self._ctx)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class List_of_specparam_assignmentsContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def specparam_assignment(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Specparam_assignmentContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Specparam_assignmentContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_list_of_specparam_assignments

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterList_of_specparam_assignments" ):
                listener.enterList_of_specparam_assignments(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitList_of_specparam_assignments" ):
                listener.exitList_of_specparam_assignments(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitList_of_specparam_assignments" ):
                return visitor.visitList_of_specparam_assignments(self)
            else:
                return visitor.visitChildren(self)




    def list_of_specparam_assignments(self):

        localctx = Verilog2001Parser.List_of_specparam_assignmentsContext(self, self._ctx, self.state)
        self.enterRule(localctx, 114, self.RULE_list_of_specparam_assignments)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1502
            self.specparam_assignment()
            self.state = 1507
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 1503
                self.match(Verilog2001Parser.T__16)
                self.state = 1504
                self.specparam_assignment()
                self.state = 1509
                self._errHandler.sync(self)
                _la = self._input.LA(1)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class List_of_real_identifiersContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def real_type(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Real_typeContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Real_typeContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_list_of_real_identifiers

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterList_of_real_identifiers" ):
                listener.enterList_of_real_identifiers(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitList_of_real_identifiers" ):
                listener.exitList_of_real_identifiers(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitList_of_real_identifiers" ):
                return visitor.visitList_of_real_identifiers(self)
            else:
                return visitor.visitChildren(self)




    def list_of_real_identifiers(self):

        localctx = Verilog2001Parser.List_of_real_identifiersContext(self, self._ctx, self.state)
        self.enterRule(localctx, 116, self.RULE_list_of_real_identifiers)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1510
            self.real_type()
            self.state = 1515
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 1511
                self.match(Verilog2001Parser.T__16)
                self.state = 1512
                self.real_type()
                self.state = 1517
                self._errHandler.sync(self)
                _la = self._input.LA(1)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class List_of_variable_identifiersContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def variable_type(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Variable_typeContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Variable_typeContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_list_of_variable_identifiers

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterList_of_variable_identifiers" ):
                listener.enterList_of_variable_identifiers(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitList_of_variable_identifiers" ):
                listener.exitList_of_variable_identifiers(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitList_of_variable_identifiers" ):
                return visitor.visitList_of_variable_identifiers(self)
            else:
                return visitor.visitChildren(self)




    def list_of_variable_identifiers(self):

        localctx = Verilog2001Parser.List_of_variable_identifiersContext(self, self._ctx, self.state)
        self.enterRule(localctx, 118, self.RULE_list_of_variable_identifiers)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1518
            self.variable_type()
            self.state = 1523
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 1519
                self.match(Verilog2001Parser.T__16)
                self.state = 1520
                self.variable_type()
                self.state = 1525
                self._errHandler.sync(self)
                _la = self._input.LA(1)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class List_of_variable_port_identifiersContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def port_identifier(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Port_identifierContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Port_identifierContext,i)


        def constant_expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Constant_expressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_list_of_variable_port_identifiers

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterList_of_variable_port_identifiers" ):
                listener.enterList_of_variable_port_identifiers(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitList_of_variable_port_identifiers" ):
                listener.exitList_of_variable_port_identifiers(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitList_of_variable_port_identifiers" ):
                return visitor.visitList_of_variable_port_identifiers(self)
            else:
                return visitor.visitChildren(self)




    def list_of_variable_port_identifiers(self):

        localctx = Verilog2001Parser.List_of_variable_port_identifiersContext(self, self._ctx, self.state)
        self.enterRule(localctx, 120, self.RULE_list_of_variable_port_identifiers)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1526
            self.port_identifier()
            self.state = 1529
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__50:
                self.state = 1527
                self.match(Verilog2001Parser.T__50)
                self.state = 1528
                self.constant_expression()


            self.state = 1539
            self._errHandler.sync(self)
            _alt = self._interp.adaptivePredict(self._input,141,self._ctx)
            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                if _alt==1:
                    self.state = 1531
                    self.match(Verilog2001Parser.T__16)
                    self.state = 1532
                    self.port_identifier()
                    self.state = 1535
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)
                    if _la==Verilog2001Parser.T__50:
                        self.state = 1533
                        self.match(Verilog2001Parser.T__50)
                        self.state = 1534
                        self.constant_expression()

             
                self.state = 1541
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,141,self._ctx)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Net_decl_assignmentContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def net_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Net_identifierContext,0)


        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_net_decl_assignment

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterNet_decl_assignment" ):
                listener.enterNet_decl_assignment(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitNet_decl_assignment" ):
                listener.exitNet_decl_assignment(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitNet_decl_assignment" ):
                return visitor.visitNet_decl_assignment(self)
            else:
                return visitor.visitChildren(self)




    def net_decl_assignment(self):

        localctx = Verilog2001Parser.Net_decl_assignmentContext(self, self._ctx, self.state)
        self.enterRule(localctx, 122, self.RULE_net_decl_assignment)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1542
            self.net_identifier()
            self.state = 1543
            self.match(Verilog2001Parser.T__50)
            self.state = 1544
            self.expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Param_assignmentContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def parameter_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Parameter_identifierContext,0)


        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_param_assignment

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterParam_assignment" ):
                listener.enterParam_assignment(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitParam_assignment" ):
                listener.exitParam_assignment(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitParam_assignment" ):
                return visitor.visitParam_assignment(self)
            else:
                return visitor.visitChildren(self)




    def param_assignment(self):

        localctx = Verilog2001Parser.Param_assignmentContext(self, self._ctx, self.state)
        self.enterRule(localctx, 124, self.RULE_param_assignment)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1546
            self.parameter_identifier()
            self.state = 1547
            self.match(Verilog2001Parser.T__50)
            self.state = 1548
            self.constant_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Specparam_assignmentContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def specparam_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Specparam_identifierContext,0)


        def constant_mintypmax_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_mintypmax_expressionContext,0)


        def pulse_control_specparam(self):
            return self.getTypedRuleContext(Verilog2001Parser.Pulse_control_specparamContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_specparam_assignment

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterSpecparam_assignment" ):
                listener.enterSpecparam_assignment(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitSpecparam_assignment" ):
                listener.exitSpecparam_assignment(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitSpecparam_assignment" ):
                return visitor.visitSpecparam_assignment(self)
            else:
                return visitor.visitChildren(self)




    def specparam_assignment(self):

        localctx = Verilog2001Parser.Specparam_assignmentContext(self, self._ctx, self.state)
        self.enterRule(localctx, 126, self.RULE_specparam_assignment)
        try:
            self.state = 1555
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.Escaped_identifier, Verilog2001Parser.Simple_identifier]:
                self.enterOuterAlt(localctx, 1)
                self.state = 1550
                self.specparam_identifier()
                self.state = 1551
                self.match(Verilog2001Parser.T__50)
                self.state = 1552
                self.constant_mintypmax_expression()
                pass
            elif token in [Verilog2001Parser.T__62]:
                self.enterOuterAlt(localctx, 2)
                self.state = 1554
                self.pulse_control_specparam()
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Pulse_control_specparamContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def reject_limit_value(self):
            return self.getTypedRuleContext(Verilog2001Parser.Reject_limit_valueContext,0)


        def error_limit_value(self):
            return self.getTypedRuleContext(Verilog2001Parser.Error_limit_valueContext,0)


        def specify_input_terminal_descriptor(self):
            return self.getTypedRuleContext(Verilog2001Parser.Specify_input_terminal_descriptorContext,0)


        def specify_output_terminal_descriptor(self):
            return self.getTypedRuleContext(Verilog2001Parser.Specify_output_terminal_descriptorContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_pulse_control_specparam

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPulse_control_specparam" ):
                listener.enterPulse_control_specparam(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPulse_control_specparam" ):
                listener.exitPulse_control_specparam(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPulse_control_specparam" ):
                return visitor.visitPulse_control_specparam(self)
            else:
                return visitor.visitChildren(self)




    def pulse_control_specparam(self):

        localctx = Verilog2001Parser.Pulse_control_specparamContext(self, self._ctx, self.state)
        self.enterRule(localctx, 128, self.RULE_pulse_control_specparam)
        self._la = 0 # Token type
        try:
            self.state = 1582
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,145,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 1557
                self.match(Verilog2001Parser.T__62)
                self.state = 1558
                self.match(Verilog2001Parser.T__50)
                self.state = 1559
                self.match(Verilog2001Parser.T__15)
                self.state = 1560
                self.reject_limit_value()
                self.state = 1563
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__16:
                    self.state = 1561
                    self.match(Verilog2001Parser.T__16)
                    self.state = 1562
                    self.error_limit_value()


                self.state = 1565
                self.match(Verilog2001Parser.T__17)
                self.state = 1566
                self.match(Verilog2001Parser.T__1)
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 1568
                self.match(Verilog2001Parser.T__62)
                self.state = 1569
                self.specify_input_terminal_descriptor()
                self.state = 1570
                self.match(Verilog2001Parser.T__63)
                self.state = 1571
                self.specify_output_terminal_descriptor()
                self.state = 1572
                self.match(Verilog2001Parser.T__50)
                self.state = 1573
                self.match(Verilog2001Parser.T__15)
                self.state = 1574
                self.reject_limit_value()
                self.state = 1577
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__16:
                    self.state = 1575
                    self.match(Verilog2001Parser.T__16)
                    self.state = 1576
                    self.error_limit_value()


                self.state = 1579
                self.match(Verilog2001Parser.T__17)
                self.state = 1580
                self.match(Verilog2001Parser.T__1)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Error_limit_valueContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def limit_value(self):
            return self.getTypedRuleContext(Verilog2001Parser.Limit_valueContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_error_limit_value

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterError_limit_value" ):
                listener.enterError_limit_value(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitError_limit_value" ):
                listener.exitError_limit_value(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitError_limit_value" ):
                return visitor.visitError_limit_value(self)
            else:
                return visitor.visitChildren(self)




    def error_limit_value(self):

        localctx = Verilog2001Parser.Error_limit_valueContext(self, self._ctx, self.state)
        self.enterRule(localctx, 130, self.RULE_error_limit_value)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1584
            self.limit_value()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Reject_limit_valueContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def limit_value(self):
            return self.getTypedRuleContext(Verilog2001Parser.Limit_valueContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_reject_limit_value

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterReject_limit_value" ):
                listener.enterReject_limit_value(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitReject_limit_value" ):
                listener.exitReject_limit_value(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitReject_limit_value" ):
                return visitor.visitReject_limit_value(self)
            else:
                return visitor.visitChildren(self)




    def reject_limit_value(self):

        localctx = Verilog2001Parser.Reject_limit_valueContext(self, self._ctx, self.state)
        self.enterRule(localctx, 132, self.RULE_reject_limit_value)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1586
            self.limit_value()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Limit_valueContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def constant_mintypmax_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_mintypmax_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_limit_value

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterLimit_value" ):
                listener.enterLimit_value(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitLimit_value" ):
                listener.exitLimit_value(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitLimit_value" ):
                return visitor.visitLimit_value(self)
            else:
                return visitor.visitChildren(self)




    def limit_value(self):

        localctx = Verilog2001Parser.Limit_valueContext(self, self._ctx, self.state)
        self.enterRule(localctx, 134, self.RULE_limit_value)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1588
            self.constant_mintypmax_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class DimensionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def dimension_constant_expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Dimension_constant_expressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Dimension_constant_expressionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_dimension

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterDimension" ):
                listener.enterDimension(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitDimension" ):
                listener.exitDimension(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitDimension" ):
                return visitor.visitDimension(self)
            else:
                return visitor.visitChildren(self)




    def dimension(self):

        localctx = Verilog2001Parser.DimensionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 136, self.RULE_dimension)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1590
            self.match(Verilog2001Parser.T__20)
            self.state = 1591
            self.dimension_constant_expression()
            self.state = 1592
            self.match(Verilog2001Parser.T__64)
            self.state = 1593
            self.dimension_constant_expression()
            self.state = 1594
            self.match(Verilog2001Parser.T__21)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Range_Context(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def msb_constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Msb_constant_expressionContext,0)


        def lsb_constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Lsb_constant_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_range_

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterRange_" ):
                listener.enterRange_(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitRange_" ):
                listener.exitRange_(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitRange_" ):
                return visitor.visitRange_(self)
            else:
                return visitor.visitChildren(self)




    def range_(self):

        localctx = Verilog2001Parser.Range_Context(self, self._ctx, self.state)
        self.enterRule(localctx, 138, self.RULE_range_)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1596
            self.match(Verilog2001Parser.T__20)
            self.state = 1597
            self.msb_constant_expression()
            self.state = 1598
            self.match(Verilog2001Parser.T__64)
            self.state = 1599
            self.lsb_constant_expression()
            self.state = 1600
            self.match(Verilog2001Parser.T__21)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Function_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def function_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Function_identifierContext,0)


        def range_or_type(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_or_typeContext,0)


        def function_item_declaration(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Function_item_declarationContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Function_item_declarationContext,i)


        def function_statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.Function_statementContext,0)


        def function_port_list(self):
            return self.getTypedRuleContext(Verilog2001Parser.Function_port_listContext,0)


        def block_item_declaration(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Block_item_declarationContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Block_item_declarationContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_function_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterFunction_declaration" ):
                listener.enterFunction_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitFunction_declaration" ):
                listener.exitFunction_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitFunction_declaration" ):
                return visitor.visitFunction_declaration(self)
            else:
                return visitor.visitChildren(self)




    def function_declaration(self):

        localctx = Verilog2001Parser.Function_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 140, self.RULE_function_declaration)
        self._la = 0 # Token type
        try:
            self.state = 1651
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,156,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 1602
                self.match(Verilog2001Parser.T__65)
                self.state = 1604
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__66:
                    self.state = 1603
                    self.match(Verilog2001Parser.T__66)


                self.state = 1607
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__24:
                    self.state = 1606
                    self.match(Verilog2001Parser.T__24)


                self.state = 1610
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__20) | (1 << Verilog2001Parser.T__25) | (1 << Verilog2001Parser.T__26) | (1 << Verilog2001Parser.T__27) | (1 << Verilog2001Parser.T__28))) != 0):
                    self.state = 1609
                    self.range_or_type()


                self.state = 1612
                self.function_identifier()
                self.state = 1613
                self.match(Verilog2001Parser.T__1)
                self.state = 1617
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,149,self._ctx)
                while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                    if _alt==1:
                        self.state = 1614
                        self.function_item_declaration() 
                    self.state = 1619
                    self._errHandler.sync(self)
                    _alt = self._interp.adaptivePredict(self._input,149,self._ctx)

                self.state = 1621
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__15 or _la==Verilog2001Parser.T__18 or ((((_la - 99)) & ~0x3f) == 0 and ((1 << (_la - 99)) & ((1 << (Verilog2001Parser.T__98 - 99)) | (1 << (Verilog2001Parser.T__100 - 99)) | (1 << (Verilog2001Parser.T__102 - 99)) | (1 << (Verilog2001Parser.T__103 - 99)) | (1 << (Verilog2001Parser.T__114 - 99)) | (1 << (Verilog2001Parser.T__115 - 99)) | (1 << (Verilog2001Parser.T__122 - 99)) | (1 << (Verilog2001Parser.T__123 - 99)) | (1 << (Verilog2001Parser.T__124 - 99)) | (1 << (Verilog2001Parser.T__125 - 99)))) != 0) or ((((_la - 175)) & ~0x3f) == 0 and ((1 << (_la - 175)) & ((1 << (Verilog2001Parser.Escaped_identifier - 175)) | (1 << (Verilog2001Parser.Simple_identifier - 175)) | (1 << (Verilog2001Parser.Dollar_Identifier - 175)))) != 0):
                    self.state = 1620
                    self.function_statement()


                self.state = 1623
                self.match(Verilog2001Parser.T__67)
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 1625
                self.match(Verilog2001Parser.T__65)
                self.state = 1627
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__66:
                    self.state = 1626
                    self.match(Verilog2001Parser.T__66)


                self.state = 1630
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__24:
                    self.state = 1629
                    self.match(Verilog2001Parser.T__24)


                self.state = 1633
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__20) | (1 << Verilog2001Parser.T__25) | (1 << Verilog2001Parser.T__26) | (1 << Verilog2001Parser.T__27) | (1 << Verilog2001Parser.T__28))) != 0):
                    self.state = 1632
                    self.range_or_type()


                self.state = 1635
                self.function_identifier()
                self.state = 1636
                self.match(Verilog2001Parser.T__15)
                self.state = 1637
                self.function_port_list()
                self.state = 1638
                self.match(Verilog2001Parser.T__17)
                self.state = 1639
                self.match(Verilog2001Parser.T__1)
                self.state = 1643
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,154,self._ctx)
                while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                    if _alt==1:
                        self.state = 1640
                        self.block_item_declaration() 
                    self.state = 1645
                    self._errHandler.sync(self)
                    _alt = self._interp.adaptivePredict(self._input,154,self._ctx)

                self.state = 1647
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__15 or _la==Verilog2001Parser.T__18 or ((((_la - 99)) & ~0x3f) == 0 and ((1 << (_la - 99)) & ((1 << (Verilog2001Parser.T__98 - 99)) | (1 << (Verilog2001Parser.T__100 - 99)) | (1 << (Verilog2001Parser.T__102 - 99)) | (1 << (Verilog2001Parser.T__103 - 99)) | (1 << (Verilog2001Parser.T__114 - 99)) | (1 << (Verilog2001Parser.T__115 - 99)) | (1 << (Verilog2001Parser.T__122 - 99)) | (1 << (Verilog2001Parser.T__123 - 99)) | (1 << (Verilog2001Parser.T__124 - 99)) | (1 << (Verilog2001Parser.T__125 - 99)))) != 0) or ((((_la - 175)) & ~0x3f) == 0 and ((1 << (_la - 175)) & ((1 << (Verilog2001Parser.Escaped_identifier - 175)) | (1 << (Verilog2001Parser.Simple_identifier - 175)) | (1 << (Verilog2001Parser.Dollar_Identifier - 175)))) != 0):
                    self.state = 1646
                    self.function_statement()


                self.state = 1649
                self.match(Verilog2001Parser.T__67)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Function_item_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def block_item_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Block_item_declarationContext,0)


        def tf_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Tf_declarationContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_function_item_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterFunction_item_declaration" ):
                listener.enterFunction_item_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitFunction_item_declaration" ):
                listener.exitFunction_item_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitFunction_item_declaration" ):
                return visitor.visitFunction_item_declaration(self)
            else:
                return visitor.visitChildren(self)




    def function_item_declaration(self):

        localctx = Verilog2001Parser.Function_item_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 142, self.RULE_function_item_declaration)
        try:
            self.state = 1657
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__15, Verilog2001Parser.T__23, Verilog2001Parser.T__25, Verilog2001Parser.T__26, Verilog2001Parser.T__27, Verilog2001Parser.T__28, Verilog2001Parser.T__29, Verilog2001Parser.T__34, Verilog2001Parser.T__35]:
                self.enterOuterAlt(localctx, 1)
                self.state = 1653
                self.block_item_declaration()
                pass
            elif token in [Verilog2001Parser.T__31, Verilog2001Parser.T__32, Verilog2001Parser.T__33]:
                self.enterOuterAlt(localctx, 2)
                self.state = 1654
                self.tf_declaration()
                self.state = 1655
                self.match(Verilog2001Parser.T__1)
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Function_port_listContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def function_port(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Function_portContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Function_portContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_function_port_list

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterFunction_port_list" ):
                listener.enterFunction_port_list(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitFunction_port_list" ):
                listener.exitFunction_port_list(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitFunction_port_list" ):
                return visitor.visitFunction_port_list(self)
            else:
                return visitor.visitChildren(self)




    def function_port_list(self):

        localctx = Verilog2001Parser.Function_port_listContext(self, self._ctx, self.state)
        self.enterRule(localctx, 144, self.RULE_function_port_list)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1659
            self.function_port()
            self.state = 1664
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 1660
                self.match(Verilog2001Parser.T__16)
                self.state = 1661
                self.function_port()
                self.state = 1666
                self._errHandler.sync(self)
                _la = self._input.LA(1)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Function_portContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def tf_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Tf_declarationContext,0)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_function_port

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterFunction_port" ):
                listener.enterFunction_port(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitFunction_port" ):
                listener.exitFunction_port(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitFunction_port" ):
                return visitor.visitFunction_port(self)
            else:
                return visitor.visitChildren(self)




    def function_port(self):

        localctx = Verilog2001Parser.Function_portContext(self, self._ctx, self.state)
        self.enterRule(localctx, 146, self.RULE_function_port)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1670
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__15:
                self.state = 1667
                self.attribute_instance()
                self.state = 1672
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 1673
            self.tf_declaration()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Range_or_typeContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def range_(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_Context,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_range_or_type

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterRange_or_type" ):
                listener.enterRange_or_type(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitRange_or_type" ):
                listener.exitRange_or_type(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitRange_or_type" ):
                return visitor.visitRange_or_type(self)
            else:
                return visitor.visitChildren(self)




    def range_or_type(self):

        localctx = Verilog2001Parser.Range_or_typeContext(self, self._ctx, self.state)
        self.enterRule(localctx, 148, self.RULE_range_or_type)
        try:
            self.state = 1680
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__20]:
                self.enterOuterAlt(localctx, 1)
                self.state = 1675
                self.range_()
                pass
            elif token in [Verilog2001Parser.T__25]:
                self.enterOuterAlt(localctx, 2)
                self.state = 1676
                self.match(Verilog2001Parser.T__25)
                pass
            elif token in [Verilog2001Parser.T__26]:
                self.enterOuterAlt(localctx, 3)
                self.state = 1677
                self.match(Verilog2001Parser.T__26)
                pass
            elif token in [Verilog2001Parser.T__27]:
                self.enterOuterAlt(localctx, 4)
                self.state = 1678
                self.match(Verilog2001Parser.T__27)
                pass
            elif token in [Verilog2001Parser.T__28]:
                self.enterOuterAlt(localctx, 5)
                self.state = 1679
                self.match(Verilog2001Parser.T__28)
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Task_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def task_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Task_identifierContext,0)


        def statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.StatementContext,0)


        def task_item_declaration(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Task_item_declarationContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Task_item_declarationContext,i)


        def task_port_list(self):
            return self.getTypedRuleContext(Verilog2001Parser.Task_port_listContext,0)


        def block_item_declaration(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Block_item_declarationContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Block_item_declarationContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_task_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTask_declaration" ):
                listener.enterTask_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTask_declaration" ):
                listener.exitTask_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTask_declaration" ):
                return visitor.visitTask_declaration(self)
            else:
                return visitor.visitChildren(self)




    def task_declaration(self):

        localctx = Verilog2001Parser.Task_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 150, self.RULE_task_declaration)
        self._la = 0 # Token type
        try:
            self.state = 1717
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,166,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 1682
                self.match(Verilog2001Parser.T__68)
                self.state = 1684
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__66:
                    self.state = 1683
                    self.match(Verilog2001Parser.T__66)


                self.state = 1686
                self.task_identifier()
                self.state = 1687
                self.match(Verilog2001Parser.T__1)
                self.state = 1691
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,162,self._ctx)
                while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                    if _alt==1:
                        self.state = 1688
                        self.task_item_declaration() 
                    self.state = 1693
                    self._errHandler.sync(self)
                    _alt = self._interp.adaptivePredict(self._input,162,self._ctx)

                self.state = 1694
                self.statement()
                self.state = 1695
                self.match(Verilog2001Parser.T__69)
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 1697
                self.match(Verilog2001Parser.T__68)
                self.state = 1699
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__66:
                    self.state = 1698
                    self.match(Verilog2001Parser.T__66)


                self.state = 1701
                self.task_identifier()
                self.state = 1702
                self.match(Verilog2001Parser.T__15)
                self.state = 1704
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__15) | (1 << Verilog2001Parser.T__31) | (1 << Verilog2001Parser.T__32) | (1 << Verilog2001Parser.T__33))) != 0):
                    self.state = 1703
                    self.task_port_list()


                self.state = 1706
                self.match(Verilog2001Parser.T__17)
                self.state = 1707
                self.match(Verilog2001Parser.T__1)
                self.state = 1711
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,165,self._ctx)
                while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                    if _alt==1:
                        self.state = 1708
                        self.block_item_declaration() 
                    self.state = 1713
                    self._errHandler.sync(self)
                    _alt = self._interp.adaptivePredict(self._input,165,self._ctx)

                self.state = 1714
                self.statement()
                self.state = 1715
                self.match(Verilog2001Parser.T__69)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Task_item_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def block_item_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Block_item_declarationContext,0)


        def tf_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Tf_declarationContext,0)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_task_item_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTask_item_declaration" ):
                listener.enterTask_item_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTask_item_declaration" ):
                listener.exitTask_item_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTask_item_declaration" ):
                return visitor.visitTask_item_declaration(self)
            else:
                return visitor.visitChildren(self)




    def task_item_declaration(self):

        localctx = Verilog2001Parser.Task_item_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 152, self.RULE_task_item_declaration)
        self._la = 0 # Token type
        try:
            self.state = 1729
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,168,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 1719
                self.block_item_declaration()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 1723
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 1720
                    self.attribute_instance()
                    self.state = 1725
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 1726
                self.tf_declaration()
                self.state = 1727
                self.match(Verilog2001Parser.T__1)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Task_port_listContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def task_port_item(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Task_port_itemContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Task_port_itemContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_task_port_list

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTask_port_list" ):
                listener.enterTask_port_list(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTask_port_list" ):
                listener.exitTask_port_list(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTask_port_list" ):
                return visitor.visitTask_port_list(self)
            else:
                return visitor.visitChildren(self)




    def task_port_list(self):

        localctx = Verilog2001Parser.Task_port_listContext(self, self._ctx, self.state)
        self.enterRule(localctx, 154, self.RULE_task_port_list)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1731
            self.task_port_item()
            self.state = 1736
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 1732
                self.match(Verilog2001Parser.T__16)
                self.state = 1733
                self.task_port_item()
                self.state = 1738
                self._errHandler.sync(self)
                _la = self._input.LA(1)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Task_port_itemContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def tf_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Tf_declarationContext,0)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_task_port_item

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTask_port_item" ):
                listener.enterTask_port_item(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTask_port_item" ):
                listener.exitTask_port_item(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTask_port_item" ):
                return visitor.visitTask_port_item(self)
            else:
                return visitor.visitChildren(self)




    def task_port_item(self):

        localctx = Verilog2001Parser.Task_port_itemContext(self, self._ctx, self.state)
        self.enterRule(localctx, 156, self.RULE_task_port_item)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1742
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__15:
                self.state = 1739
                self.attribute_instance()
                self.state = 1744
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 1745
            self.tf_declaration()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Tf_decl_headerContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def net_type(self):
            return self.getTypedRuleContext(Verilog2001Parser.Net_typeContext,0)


        def range_(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_Context,0)


        def task_port_type(self):
            return self.getTypedRuleContext(Verilog2001Parser.Task_port_typeContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_tf_decl_header

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTf_decl_header" ):
                listener.enterTf_decl_header(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTf_decl_header" ):
                listener.exitTf_decl_header(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTf_decl_header" ):
                return visitor.visitTf_decl_header(self)
            else:
                return visitor.visitChildren(self)




    def tf_decl_header(self):

        localctx = Verilog2001Parser.Tf_decl_headerContext(self, self._ctx, self.state)
        self.enterRule(localctx, 158, self.RULE_tf_decl_header)
        self._la = 0 # Token type
        try:
            self.state = 1767
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,177,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 1747
                _la = self._input.LA(1)
                if not((((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__31) | (1 << Verilog2001Parser.T__32) | (1 << Verilog2001Parser.T__33))) != 0)):
                    self._errHandler.recoverInline(self)
                else:
                    self._errHandler.reportMatch(self)
                    self.consume()
                self.state = 1749
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__40) | (1 << Verilog2001Parser.T__41) | (1 << Verilog2001Parser.T__42) | (1 << Verilog2001Parser.T__43) | (1 << Verilog2001Parser.T__44) | (1 << Verilog2001Parser.T__45) | (1 << Verilog2001Parser.T__46) | (1 << Verilog2001Parser.T__47) | (1 << Verilog2001Parser.T__48) | (1 << Verilog2001Parser.T__49))) != 0):
                    self.state = 1748
                    self.net_type()


                self.state = 1752
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__34:
                    self.state = 1751
                    self.match(Verilog2001Parser.T__34)


                self.state = 1755
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__24:
                    self.state = 1754
                    self.match(Verilog2001Parser.T__24)


                self.state = 1758
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__20:
                    self.state = 1757
                    self.range_()


                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 1760
                _la = self._input.LA(1)
                if not((((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__31) | (1 << Verilog2001Parser.T__32) | (1 << Verilog2001Parser.T__33))) != 0)):
                    self._errHandler.recoverInline(self)
                else:
                    self._errHandler.reportMatch(self)
                    self.consume()
                self.state = 1762
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__40) | (1 << Verilog2001Parser.T__41) | (1 << Verilog2001Parser.T__42) | (1 << Verilog2001Parser.T__43) | (1 << Verilog2001Parser.T__44) | (1 << Verilog2001Parser.T__45) | (1 << Verilog2001Parser.T__46) | (1 << Verilog2001Parser.T__47) | (1 << Verilog2001Parser.T__48) | (1 << Verilog2001Parser.T__49))) != 0):
                    self.state = 1761
                    self.net_type()


                self.state = 1765
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__25) | (1 << Verilog2001Parser.T__26) | (1 << Verilog2001Parser.T__27) | (1 << Verilog2001Parser.T__28))) != 0):
                    self.state = 1764
                    self.task_port_type()


                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Tf_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def tf_decl_header(self):
            return self.getTypedRuleContext(Verilog2001Parser.Tf_decl_headerContext,0)


        def list_of_port_identifiers(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_port_identifiersContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_tf_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTf_declaration" ):
                listener.enterTf_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTf_declaration" ):
                listener.exitTf_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTf_declaration" ):
                return visitor.visitTf_declaration(self)
            else:
                return visitor.visitChildren(self)




    def tf_declaration(self):

        localctx = Verilog2001Parser.Tf_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 160, self.RULE_tf_declaration)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1769
            self.tf_decl_header()
            self.state = 1770
            self.list_of_port_identifiers()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Task_port_typeContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_task_port_type

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTask_port_type" ):
                listener.enterTask_port_type(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTask_port_type" ):
                listener.exitTask_port_type(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTask_port_type" ):
                return visitor.visitTask_port_type(self)
            else:
                return visitor.visitChildren(self)




    def task_port_type(self):

        localctx = Verilog2001Parser.Task_port_typeContext(self, self._ctx, self.state)
        self.enterRule(localctx, 162, self.RULE_task_port_type)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1772
            _la = self._input.LA(1)
            if not((((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__25) | (1 << Verilog2001Parser.T__26) | (1 << Verilog2001Parser.T__27) | (1 << Verilog2001Parser.T__28))) != 0)):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Block_item_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def block_reg_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Block_reg_declarationContext,0)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def event_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Event_declarationContext,0)


        def integer_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Integer_declarationContext,0)


        def local_parameter_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Local_parameter_declarationContext,0)


        def parameter_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Parameter_declarationContext,0)


        def real_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Real_declarationContext,0)


        def realtime_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Realtime_declarationContext,0)


        def time_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Time_declarationContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_block_item_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterBlock_item_declaration" ):
                listener.enterBlock_item_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitBlock_item_declaration" ):
                listener.exitBlock_item_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitBlock_item_declaration" ):
                return visitor.visitBlock_item_declaration(self)
            else:
                return visitor.visitChildren(self)




    def block_item_declaration(self):

        localctx = Verilog2001Parser.Block_item_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 164, self.RULE_block_item_declaration)
        self._la = 0 # Token type
        try:
            self.state = 1830
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,186,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 1777
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 1774
                    self.attribute_instance()
                    self.state = 1779
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 1780
                self.block_reg_declaration()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 1784
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 1781
                    self.attribute_instance()
                    self.state = 1786
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 1787
                self.event_declaration()
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 1791
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 1788
                    self.attribute_instance()
                    self.state = 1793
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 1794
                self.integer_declaration()
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 1798
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 1795
                    self.attribute_instance()
                    self.state = 1800
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 1801
                self.local_parameter_declaration()
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 1805
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 1802
                    self.attribute_instance()
                    self.state = 1807
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 1808
                self.parameter_declaration()
                pass

            elif la_ == 6:
                self.enterOuterAlt(localctx, 6)
                self.state = 1812
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 1809
                    self.attribute_instance()
                    self.state = 1814
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 1815
                self.real_declaration()
                pass

            elif la_ == 7:
                self.enterOuterAlt(localctx, 7)
                self.state = 1819
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 1816
                    self.attribute_instance()
                    self.state = 1821
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 1822
                self.realtime_declaration()
                pass

            elif la_ == 8:
                self.enterOuterAlt(localctx, 8)
                self.state = 1826
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 1823
                    self.attribute_instance()
                    self.state = 1828
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 1829
                self.time_declaration()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Block_reg_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_block_variable_identifiers(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_block_variable_identifiersContext,0)


        def range_(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_Context,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_block_reg_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterBlock_reg_declaration" ):
                listener.enterBlock_reg_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitBlock_reg_declaration" ):
                listener.exitBlock_reg_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitBlock_reg_declaration" ):
                return visitor.visitBlock_reg_declaration(self)
            else:
                return visitor.visitChildren(self)




    def block_reg_declaration(self):

        localctx = Verilog2001Parser.Block_reg_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 166, self.RULE_block_reg_declaration)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1832
            self.match(Verilog2001Parser.T__34)
            self.state = 1834
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__24:
                self.state = 1833
                self.match(Verilog2001Parser.T__24)


            self.state = 1837
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__20:
                self.state = 1836
                self.range_()


            self.state = 1839
            self.list_of_block_variable_identifiers()
            self.state = 1840
            self.match(Verilog2001Parser.T__1)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class List_of_block_variable_identifiersContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def block_variable_type(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Block_variable_typeContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Block_variable_typeContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_list_of_block_variable_identifiers

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterList_of_block_variable_identifiers" ):
                listener.enterList_of_block_variable_identifiers(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitList_of_block_variable_identifiers" ):
                listener.exitList_of_block_variable_identifiers(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitList_of_block_variable_identifiers" ):
                return visitor.visitList_of_block_variable_identifiers(self)
            else:
                return visitor.visitChildren(self)




    def list_of_block_variable_identifiers(self):

        localctx = Verilog2001Parser.List_of_block_variable_identifiersContext(self, self._ctx, self.state)
        self.enterRule(localctx, 168, self.RULE_list_of_block_variable_identifiers)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1842
            self.block_variable_type()
            self.state = 1847
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 1843
                self.match(Verilog2001Parser.T__16)
                self.state = 1844
                self.block_variable_type()
                self.state = 1849
                self._errHandler.sync(self)
                _la = self._input.LA(1)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Block_variable_typeContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def variable_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Variable_identifierContext,0)


        def dimension(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.DimensionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.DimensionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_block_variable_type

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterBlock_variable_type" ):
                listener.enterBlock_variable_type(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitBlock_variable_type" ):
                listener.exitBlock_variable_type(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitBlock_variable_type" ):
                return visitor.visitBlock_variable_type(self)
            else:
                return visitor.visitChildren(self)




    def block_variable_type(self):

        localctx = Verilog2001Parser.Block_variable_typeContext(self, self._ctx, self.state)
        self.enterRule(localctx, 170, self.RULE_block_variable_type)
        self._la = 0 # Token type
        try:
            self.state = 1859
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,191,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 1850
                self.variable_identifier()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 1851
                self.variable_identifier()
                self.state = 1852
                self.dimension()
                self.state = 1856
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__20:
                    self.state = 1853
                    self.dimension()
                    self.state = 1858
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Gate_instantiationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def cmos_switchtype(self):
            return self.getTypedRuleContext(Verilog2001Parser.Cmos_switchtypeContext,0)


        def cmos_switch_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Cmos_switch_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Cmos_switch_instanceContext,i)


        def delay3(self):
            return self.getTypedRuleContext(Verilog2001Parser.Delay3Context,0)


        def mos_switchtype(self):
            return self.getTypedRuleContext(Verilog2001Parser.Mos_switchtypeContext,0)


        def mos_switch_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Mos_switch_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Mos_switch_instanceContext,i)


        def pass_switchtype(self):
            return self.getTypedRuleContext(Verilog2001Parser.Pass_switchtypeContext,0)


        def pass_switch_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Pass_switch_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Pass_switch_instanceContext,i)


        def pull_gate_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Pull_gate_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Pull_gate_instanceContext,i)


        def pulldown_strength(self):
            return self.getTypedRuleContext(Verilog2001Parser.Pulldown_strengthContext,0)


        def pullup_strength(self):
            return self.getTypedRuleContext(Verilog2001Parser.Pullup_strengthContext,0)


        def enable_gatetype(self):
            return self.getTypedRuleContext(Verilog2001Parser.Enable_gatetypeContext,0)


        def enable_gate_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Enable_gate_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Enable_gate_instanceContext,i)


        def drive_strength(self):
            return self.getTypedRuleContext(Verilog2001Parser.Drive_strengthContext,0)


        def n_input_gatetype(self):
            return self.getTypedRuleContext(Verilog2001Parser.N_input_gatetypeContext,0)


        def n_input_gate_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.N_input_gate_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.N_input_gate_instanceContext,i)


        def delay2(self):
            return self.getTypedRuleContext(Verilog2001Parser.Delay2Context,0)


        def n_output_gatetype(self):
            return self.getTypedRuleContext(Verilog2001Parser.N_output_gatetypeContext,0)


        def n_output_gate_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.N_output_gate_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.N_output_gate_instanceContext,i)


        def pass_en_switchtype(self):
            return self.getTypedRuleContext(Verilog2001Parser.Pass_en_switchtypeContext,0)


        def pass_enable_switch_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Pass_enable_switch_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Pass_enable_switch_instanceContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_gate_instantiation

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterGate_instantiation" ):
                listener.enterGate_instantiation(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitGate_instantiation" ):
                listener.exitGate_instantiation(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitGate_instantiation" ):
                return visitor.visitGate_instantiation(self)
            else:
                return visitor.visitChildren(self)




    def gate_instantiation(self):

        localctx = Verilog2001Parser.Gate_instantiationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 172, self.RULE_gate_instantiation)
        self._la = 0 # Token type
        try:
            self.state = 1993
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__72, Verilog2001Parser.T__73]:
                self.enterOuterAlt(localctx, 1)
                self.state = 1861
                self.cmos_switchtype()
                self.state = 1863
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__14:
                    self.state = 1862
                    self.delay3()


                self.state = 1865
                self.cmos_switch_instance()
                self.state = 1870
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 1866
                    self.match(Verilog2001Parser.T__16)
                    self.state = 1867
                    self.cmos_switch_instance()
                    self.state = 1872
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 1873
                self.match(Verilog2001Parser.T__1)
                pass
            elif token in [Verilog2001Parser.T__78, Verilog2001Parser.T__79, Verilog2001Parser.T__80, Verilog2001Parser.T__81]:
                self.enterOuterAlt(localctx, 2)
                self.state = 1875
                self.mos_switchtype()
                self.state = 1877
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__14:
                    self.state = 1876
                    self.delay3()


                self.state = 1879
                self.mos_switch_instance()
                self.state = 1884
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 1880
                    self.match(Verilog2001Parser.T__16)
                    self.state = 1881
                    self.mos_switch_instance()
                    self.state = 1886
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 1887
                self.match(Verilog2001Parser.T__1)
                pass
            elif token in [Verilog2001Parser.T__94, Verilog2001Parser.T__95]:
                self.enterOuterAlt(localctx, 3)
                self.state = 1889
                self.pass_switchtype()
                self.state = 1890
                self.pass_switch_instance()
                self.state = 1895
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 1891
                    self.match(Verilog2001Parser.T__16)
                    self.state = 1892
                    self.pass_switch_instance()
                    self.state = 1897
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 1898
                self.match(Verilog2001Parser.T__1)
                pass
            elif token in [Verilog2001Parser.T__70]:
                self.enterOuterAlt(localctx, 4)
                self.state = 1900
                self.match(Verilog2001Parser.T__70)
                self.state = 1902
                self._errHandler.sync(self)
                la_ = self._interp.adaptivePredict(self._input,197,self._ctx)
                if la_ == 1:
                    self.state = 1901
                    self.pulldown_strength()


                self.state = 1904
                self.pull_gate_instance()
                self.state = 1909
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 1905
                    self.match(Verilog2001Parser.T__16)
                    self.state = 1906
                    self.pull_gate_instance()
                    self.state = 1911
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 1912
                self.match(Verilog2001Parser.T__1)
                pass
            elif token in [Verilog2001Parser.T__71]:
                self.enterOuterAlt(localctx, 5)
                self.state = 1914
                self.match(Verilog2001Parser.T__71)
                self.state = 1916
                self._errHandler.sync(self)
                la_ = self._interp.adaptivePredict(self._input,199,self._ctx)
                if la_ == 1:
                    self.state = 1915
                    self.pullup_strength()


                self.state = 1918
                self.pull_gate_instance()
                self.state = 1923
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 1919
                    self.match(Verilog2001Parser.T__16)
                    self.state = 1920
                    self.pull_gate_instance()
                    self.state = 1925
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 1926
                self.match(Verilog2001Parser.T__1)
                pass
            elif token in [Verilog2001Parser.T__74, Verilog2001Parser.T__75, Verilog2001Parser.T__76, Verilog2001Parser.T__77]:
                self.enterOuterAlt(localctx, 6)
                self.state = 1928
                self.enable_gatetype()
                self.state = 1930
                self._errHandler.sync(self)
                la_ = self._interp.adaptivePredict(self._input,201,self._ctx)
                if la_ == 1:
                    self.state = 1929
                    self.drive_strength()


                self.state = 1933
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__14:
                    self.state = 1932
                    self.delay3()


                self.state = 1935
                self.enable_gate_instance()
                self.state = 1940
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 1936
                    self.match(Verilog2001Parser.T__16)
                    self.state = 1937
                    self.enable_gate_instance()
                    self.state = 1942
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 1943
                self.match(Verilog2001Parser.T__1)
                pass
            elif token in [Verilog2001Parser.T__82, Verilog2001Parser.T__83, Verilog2001Parser.T__84, Verilog2001Parser.T__85, Verilog2001Parser.T__86, Verilog2001Parser.T__87]:
                self.enterOuterAlt(localctx, 7)
                self.state = 1945
                self.n_input_gatetype()
                self.state = 1947
                self._errHandler.sync(self)
                la_ = self._interp.adaptivePredict(self._input,204,self._ctx)
                if la_ == 1:
                    self.state = 1946
                    self.drive_strength()


                self.state = 1950
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__14:
                    self.state = 1949
                    self.delay2()


                self.state = 1952
                self.n_input_gate_instance()
                self.state = 1957
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 1953
                    self.match(Verilog2001Parser.T__16)
                    self.state = 1954
                    self.n_input_gate_instance()
                    self.state = 1959
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 1960
                self.match(Verilog2001Parser.T__1)
                pass
            elif token in [Verilog2001Parser.T__88, Verilog2001Parser.T__89]:
                self.enterOuterAlt(localctx, 8)
                self.state = 1962
                self.n_output_gatetype()
                self.state = 1964
                self._errHandler.sync(self)
                la_ = self._interp.adaptivePredict(self._input,207,self._ctx)
                if la_ == 1:
                    self.state = 1963
                    self.drive_strength()


                self.state = 1967
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__14:
                    self.state = 1966
                    self.delay2()


                self.state = 1969
                self.n_output_gate_instance()
                self.state = 1974
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 1970
                    self.match(Verilog2001Parser.T__16)
                    self.state = 1971
                    self.n_output_gate_instance()
                    self.state = 1976
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 1977
                self.match(Verilog2001Parser.T__1)
                pass
            elif token in [Verilog2001Parser.T__90, Verilog2001Parser.T__91, Verilog2001Parser.T__92, Verilog2001Parser.T__93]:
                self.enterOuterAlt(localctx, 9)
                self.state = 1979
                self.pass_en_switchtype()
                self.state = 1981
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__14:
                    self.state = 1980
                    self.delay2()


                self.state = 1983
                self.pass_enable_switch_instance()
                self.state = 1988
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 1984
                    self.match(Verilog2001Parser.T__16)
                    self.state = 1985
                    self.pass_enable_switch_instance()
                    self.state = 1990
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 1991
                self.match(Verilog2001Parser.T__1)
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Cmos_switch_instanceContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def output_terminal(self):
            return self.getTypedRuleContext(Verilog2001Parser.Output_terminalContext,0)


        def input_terminal(self):
            return self.getTypedRuleContext(Verilog2001Parser.Input_terminalContext,0)


        def ncontrol_terminal(self):
            return self.getTypedRuleContext(Verilog2001Parser.Ncontrol_terminalContext,0)


        def pcontrol_terminal(self):
            return self.getTypedRuleContext(Verilog2001Parser.Pcontrol_terminalContext,0)


        def name_of_gate_instance(self):
            return self.getTypedRuleContext(Verilog2001Parser.Name_of_gate_instanceContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_cmos_switch_instance

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterCmos_switch_instance" ):
                listener.enterCmos_switch_instance(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitCmos_switch_instance" ):
                listener.exitCmos_switch_instance(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitCmos_switch_instance" ):
                return visitor.visitCmos_switch_instance(self)
            else:
                return visitor.visitChildren(self)




    def cmos_switch_instance(self):

        localctx = Verilog2001Parser.Cmos_switch_instanceContext(self, self._ctx, self.state)
        self.enterRule(localctx, 174, self.RULE_cmos_switch_instance)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 1996
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.Escaped_identifier or _la==Verilog2001Parser.Simple_identifier:
                self.state = 1995
                self.name_of_gate_instance()


            self.state = 1998
            self.match(Verilog2001Parser.T__15)
            self.state = 1999
            self.output_terminal()
            self.state = 2000
            self.match(Verilog2001Parser.T__16)
            self.state = 2001
            self.input_terminal()
            self.state = 2002
            self.match(Verilog2001Parser.T__16)
            self.state = 2003
            self.ncontrol_terminal()
            self.state = 2004
            self.match(Verilog2001Parser.T__16)
            self.state = 2005
            self.pcontrol_terminal()
            self.state = 2006
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Enable_gate_instanceContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def output_terminal(self):
            return self.getTypedRuleContext(Verilog2001Parser.Output_terminalContext,0)


        def input_terminal(self):
            return self.getTypedRuleContext(Verilog2001Parser.Input_terminalContext,0)


        def enable_terminal(self):
            return self.getTypedRuleContext(Verilog2001Parser.Enable_terminalContext,0)


        def name_of_gate_instance(self):
            return self.getTypedRuleContext(Verilog2001Parser.Name_of_gate_instanceContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_enable_gate_instance

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterEnable_gate_instance" ):
                listener.enterEnable_gate_instance(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitEnable_gate_instance" ):
                listener.exitEnable_gate_instance(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitEnable_gate_instance" ):
                return visitor.visitEnable_gate_instance(self)
            else:
                return visitor.visitChildren(self)




    def enable_gate_instance(self):

        localctx = Verilog2001Parser.Enable_gate_instanceContext(self, self._ctx, self.state)
        self.enterRule(localctx, 176, self.RULE_enable_gate_instance)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2009
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.Escaped_identifier or _la==Verilog2001Parser.Simple_identifier:
                self.state = 2008
                self.name_of_gate_instance()


            self.state = 2011
            self.match(Verilog2001Parser.T__15)
            self.state = 2012
            self.output_terminal()
            self.state = 2013
            self.match(Verilog2001Parser.T__16)
            self.state = 2014
            self.input_terminal()
            self.state = 2015
            self.match(Verilog2001Parser.T__16)
            self.state = 2016
            self.enable_terminal()
            self.state = 2017
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Mos_switch_instanceContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def output_terminal(self):
            return self.getTypedRuleContext(Verilog2001Parser.Output_terminalContext,0)


        def input_terminal(self):
            return self.getTypedRuleContext(Verilog2001Parser.Input_terminalContext,0)


        def enable_terminal(self):
            return self.getTypedRuleContext(Verilog2001Parser.Enable_terminalContext,0)


        def name_of_gate_instance(self):
            return self.getTypedRuleContext(Verilog2001Parser.Name_of_gate_instanceContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_mos_switch_instance

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterMos_switch_instance" ):
                listener.enterMos_switch_instance(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitMos_switch_instance" ):
                listener.exitMos_switch_instance(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitMos_switch_instance" ):
                return visitor.visitMos_switch_instance(self)
            else:
                return visitor.visitChildren(self)




    def mos_switch_instance(self):

        localctx = Verilog2001Parser.Mos_switch_instanceContext(self, self._ctx, self.state)
        self.enterRule(localctx, 178, self.RULE_mos_switch_instance)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2020
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.Escaped_identifier or _la==Verilog2001Parser.Simple_identifier:
                self.state = 2019
                self.name_of_gate_instance()


            self.state = 2022
            self.match(Verilog2001Parser.T__15)
            self.state = 2023
            self.output_terminal()
            self.state = 2024
            self.match(Verilog2001Parser.T__16)
            self.state = 2025
            self.input_terminal()
            self.state = 2026
            self.match(Verilog2001Parser.T__16)
            self.state = 2027
            self.enable_terminal()
            self.state = 2028
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class N_input_gate_instanceContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def output_terminal(self):
            return self.getTypedRuleContext(Verilog2001Parser.Output_terminalContext,0)


        def input_terminal(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Input_terminalContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Input_terminalContext,i)


        def name_of_gate_instance(self):
            return self.getTypedRuleContext(Verilog2001Parser.Name_of_gate_instanceContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_n_input_gate_instance

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterN_input_gate_instance" ):
                listener.enterN_input_gate_instance(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitN_input_gate_instance" ):
                listener.exitN_input_gate_instance(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitN_input_gate_instance" ):
                return visitor.visitN_input_gate_instance(self)
            else:
                return visitor.visitChildren(self)




    def n_input_gate_instance(self):

        localctx = Verilog2001Parser.N_input_gate_instanceContext(self, self._ctx, self.state)
        self.enterRule(localctx, 180, self.RULE_n_input_gate_instance)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2031
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.Escaped_identifier or _la==Verilog2001Parser.Simple_identifier:
                self.state = 2030
                self.name_of_gate_instance()


            self.state = 2033
            self.match(Verilog2001Parser.T__15)
            self.state = 2034
            self.output_terminal()
            self.state = 2035
            self.match(Verilog2001Parser.T__16)
            self.state = 2036
            self.input_terminal()
            self.state = 2041
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 2037
                self.match(Verilog2001Parser.T__16)
                self.state = 2038
                self.input_terminal()
                self.state = 2043
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 2044
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class N_output_gate_instanceContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def output_terminal(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Output_terminalContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Output_terminalContext,i)


        def input_terminal(self):
            return self.getTypedRuleContext(Verilog2001Parser.Input_terminalContext,0)


        def name_of_gate_instance(self):
            return self.getTypedRuleContext(Verilog2001Parser.Name_of_gate_instanceContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_n_output_gate_instance

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterN_output_gate_instance" ):
                listener.enterN_output_gate_instance(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitN_output_gate_instance" ):
                listener.exitN_output_gate_instance(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitN_output_gate_instance" ):
                return visitor.visitN_output_gate_instance(self)
            else:
                return visitor.visitChildren(self)




    def n_output_gate_instance(self):

        localctx = Verilog2001Parser.N_output_gate_instanceContext(self, self._ctx, self.state)
        self.enterRule(localctx, 182, self.RULE_n_output_gate_instance)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2047
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.Escaped_identifier or _la==Verilog2001Parser.Simple_identifier:
                self.state = 2046
                self.name_of_gate_instance()


            self.state = 2049
            self.match(Verilog2001Parser.T__15)
            self.state = 2050
            self.output_terminal()
            self.state = 2055
            self._errHandler.sync(self)
            _alt = self._interp.adaptivePredict(self._input,219,self._ctx)
            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                if _alt==1:
                    self.state = 2051
                    self.match(Verilog2001Parser.T__16)
                    self.state = 2052
                    self.output_terminal() 
                self.state = 2057
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,219,self._ctx)

            self.state = 2058
            self.match(Verilog2001Parser.T__16)
            self.state = 2059
            self.input_terminal()
            self.state = 2060
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Pass_switch_instanceContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def inout_terminal(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Inout_terminalContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Inout_terminalContext,i)


        def name_of_gate_instance(self):
            return self.getTypedRuleContext(Verilog2001Parser.Name_of_gate_instanceContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_pass_switch_instance

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPass_switch_instance" ):
                listener.enterPass_switch_instance(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPass_switch_instance" ):
                listener.exitPass_switch_instance(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPass_switch_instance" ):
                return visitor.visitPass_switch_instance(self)
            else:
                return visitor.visitChildren(self)




    def pass_switch_instance(self):

        localctx = Verilog2001Parser.Pass_switch_instanceContext(self, self._ctx, self.state)
        self.enterRule(localctx, 184, self.RULE_pass_switch_instance)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2063
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.Escaped_identifier or _la==Verilog2001Parser.Simple_identifier:
                self.state = 2062
                self.name_of_gate_instance()


            self.state = 2065
            self.match(Verilog2001Parser.T__15)
            self.state = 2066
            self.inout_terminal()
            self.state = 2067
            self.match(Verilog2001Parser.T__16)
            self.state = 2068
            self.inout_terminal()
            self.state = 2069
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Pass_enable_switch_instanceContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def inout_terminal(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Inout_terminalContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Inout_terminalContext,i)


        def enable_terminal(self):
            return self.getTypedRuleContext(Verilog2001Parser.Enable_terminalContext,0)


        def name_of_gate_instance(self):
            return self.getTypedRuleContext(Verilog2001Parser.Name_of_gate_instanceContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_pass_enable_switch_instance

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPass_enable_switch_instance" ):
                listener.enterPass_enable_switch_instance(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPass_enable_switch_instance" ):
                listener.exitPass_enable_switch_instance(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPass_enable_switch_instance" ):
                return visitor.visitPass_enable_switch_instance(self)
            else:
                return visitor.visitChildren(self)




    def pass_enable_switch_instance(self):

        localctx = Verilog2001Parser.Pass_enable_switch_instanceContext(self, self._ctx, self.state)
        self.enterRule(localctx, 186, self.RULE_pass_enable_switch_instance)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2072
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.Escaped_identifier or _la==Verilog2001Parser.Simple_identifier:
                self.state = 2071
                self.name_of_gate_instance()


            self.state = 2074
            self.match(Verilog2001Parser.T__15)
            self.state = 2075
            self.inout_terminal()
            self.state = 2076
            self.match(Verilog2001Parser.T__16)
            self.state = 2077
            self.inout_terminal()
            self.state = 2078
            self.match(Verilog2001Parser.T__16)
            self.state = 2079
            self.enable_terminal()
            self.state = 2080
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Pull_gate_instanceContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def output_terminal(self):
            return self.getTypedRuleContext(Verilog2001Parser.Output_terminalContext,0)


        def name_of_gate_instance(self):
            return self.getTypedRuleContext(Verilog2001Parser.Name_of_gate_instanceContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_pull_gate_instance

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPull_gate_instance" ):
                listener.enterPull_gate_instance(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPull_gate_instance" ):
                listener.exitPull_gate_instance(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPull_gate_instance" ):
                return visitor.visitPull_gate_instance(self)
            else:
                return visitor.visitChildren(self)




    def pull_gate_instance(self):

        localctx = Verilog2001Parser.Pull_gate_instanceContext(self, self._ctx, self.state)
        self.enterRule(localctx, 188, self.RULE_pull_gate_instance)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2083
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.Escaped_identifier or _la==Verilog2001Parser.Simple_identifier:
                self.state = 2082
                self.name_of_gate_instance()


            self.state = 2085
            self.match(Verilog2001Parser.T__15)
            self.state = 2086
            self.output_terminal()
            self.state = 2087
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Name_of_gate_instanceContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def gate_instance_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Gate_instance_identifierContext,0)


        def range_(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_Context,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_name_of_gate_instance

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterName_of_gate_instance" ):
                listener.enterName_of_gate_instance(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitName_of_gate_instance" ):
                listener.exitName_of_gate_instance(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitName_of_gate_instance" ):
                return visitor.visitName_of_gate_instance(self)
            else:
                return visitor.visitChildren(self)




    def name_of_gate_instance(self):

        localctx = Verilog2001Parser.Name_of_gate_instanceContext(self, self._ctx, self.state)
        self.enterRule(localctx, 190, self.RULE_name_of_gate_instance)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2089
            self.gate_instance_identifier()
            self.state = 2091
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__20:
                self.state = 2090
                self.range_()


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Pulldown_strengthContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def strength0(self):
            return self.getTypedRuleContext(Verilog2001Parser.Strength0Context,0)


        def strength1(self):
            return self.getTypedRuleContext(Verilog2001Parser.Strength1Context,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_pulldown_strength

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPulldown_strength" ):
                listener.enterPulldown_strength(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPulldown_strength" ):
                listener.exitPulldown_strength(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPulldown_strength" ):
                return visitor.visitPulldown_strength(self)
            else:
                return visitor.visitChildren(self)




    def pulldown_strength(self):

        localctx = Verilog2001Parser.Pulldown_strengthContext(self, self._ctx, self.state)
        self.enterRule(localctx, 192, self.RULE_pulldown_strength)
        try:
            self.state = 2109
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,224,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 2093
                self.match(Verilog2001Parser.T__15)
                self.state = 2094
                self.strength0()
                self.state = 2095
                self.match(Verilog2001Parser.T__16)
                self.state = 2096
                self.strength1()
                self.state = 2097
                self.match(Verilog2001Parser.T__17)
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 2099
                self.match(Verilog2001Parser.T__15)
                self.state = 2100
                self.strength1()
                self.state = 2101
                self.match(Verilog2001Parser.T__16)
                self.state = 2102
                self.strength0()
                self.state = 2103
                self.match(Verilog2001Parser.T__17)
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 2105
                self.match(Verilog2001Parser.T__15)
                self.state = 2106
                self.strength0()
                self.state = 2107
                self.match(Verilog2001Parser.T__17)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Pullup_strengthContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def strength0(self):
            return self.getTypedRuleContext(Verilog2001Parser.Strength0Context,0)


        def strength1(self):
            return self.getTypedRuleContext(Verilog2001Parser.Strength1Context,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_pullup_strength

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPullup_strength" ):
                listener.enterPullup_strength(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPullup_strength" ):
                listener.exitPullup_strength(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPullup_strength" ):
                return visitor.visitPullup_strength(self)
            else:
                return visitor.visitChildren(self)




    def pullup_strength(self):

        localctx = Verilog2001Parser.Pullup_strengthContext(self, self._ctx, self.state)
        self.enterRule(localctx, 194, self.RULE_pullup_strength)
        try:
            self.state = 2127
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,225,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 2111
                self.match(Verilog2001Parser.T__15)
                self.state = 2112
                self.strength0()
                self.state = 2113
                self.match(Verilog2001Parser.T__16)
                self.state = 2114
                self.strength1()
                self.state = 2115
                self.match(Verilog2001Parser.T__17)
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 2117
                self.match(Verilog2001Parser.T__15)
                self.state = 2118
                self.strength1()
                self.state = 2119
                self.match(Verilog2001Parser.T__16)
                self.state = 2120
                self.strength0()
                self.state = 2121
                self.match(Verilog2001Parser.T__17)
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 2123
                self.match(Verilog2001Parser.T__15)
                self.state = 2124
                self.strength1()
                self.state = 2125
                self.match(Verilog2001Parser.T__17)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Enable_terminalContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_enable_terminal

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterEnable_terminal" ):
                listener.enterEnable_terminal(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitEnable_terminal" ):
                listener.exitEnable_terminal(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitEnable_terminal" ):
                return visitor.visitEnable_terminal(self)
            else:
                return visitor.visitChildren(self)




    def enable_terminal(self):

        localctx = Verilog2001Parser.Enable_terminalContext(self, self._ctx, self.state)
        self.enterRule(localctx, 196, self.RULE_enable_terminal)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2129
            self.expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Ncontrol_terminalContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_ncontrol_terminal

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterNcontrol_terminal" ):
                listener.enterNcontrol_terminal(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitNcontrol_terminal" ):
                listener.exitNcontrol_terminal(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitNcontrol_terminal" ):
                return visitor.visitNcontrol_terminal(self)
            else:
                return visitor.visitChildren(self)




    def ncontrol_terminal(self):

        localctx = Verilog2001Parser.Ncontrol_terminalContext(self, self._ctx, self.state)
        self.enterRule(localctx, 198, self.RULE_ncontrol_terminal)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2131
            self.expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Pcontrol_terminalContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_pcontrol_terminal

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPcontrol_terminal" ):
                listener.enterPcontrol_terminal(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPcontrol_terminal" ):
                listener.exitPcontrol_terminal(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPcontrol_terminal" ):
                return visitor.visitPcontrol_terminal(self)
            else:
                return visitor.visitChildren(self)




    def pcontrol_terminal(self):

        localctx = Verilog2001Parser.Pcontrol_terminalContext(self, self._ctx, self.state)
        self.enterRule(localctx, 200, self.RULE_pcontrol_terminal)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2133
            self.expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Input_terminalContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_input_terminal

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterInput_terminal" ):
                listener.enterInput_terminal(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitInput_terminal" ):
                listener.exitInput_terminal(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitInput_terminal" ):
                return visitor.visitInput_terminal(self)
            else:
                return visitor.visitChildren(self)




    def input_terminal(self):

        localctx = Verilog2001Parser.Input_terminalContext(self, self._ctx, self.state)
        self.enterRule(localctx, 202, self.RULE_input_terminal)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2135
            self.expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Inout_terminalContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def net_lvalue(self):
            return self.getTypedRuleContext(Verilog2001Parser.Net_lvalueContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_inout_terminal

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterInout_terminal" ):
                listener.enterInout_terminal(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitInout_terminal" ):
                listener.exitInout_terminal(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitInout_terminal" ):
                return visitor.visitInout_terminal(self)
            else:
                return visitor.visitChildren(self)




    def inout_terminal(self):

        localctx = Verilog2001Parser.Inout_terminalContext(self, self._ctx, self.state)
        self.enterRule(localctx, 204, self.RULE_inout_terminal)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2137
            self.net_lvalue()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Output_terminalContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def net_lvalue(self):
            return self.getTypedRuleContext(Verilog2001Parser.Net_lvalueContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_output_terminal

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterOutput_terminal" ):
                listener.enterOutput_terminal(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitOutput_terminal" ):
                listener.exitOutput_terminal(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitOutput_terminal" ):
                return visitor.visitOutput_terminal(self)
            else:
                return visitor.visitChildren(self)




    def output_terminal(self):

        localctx = Verilog2001Parser.Output_terminalContext(self, self._ctx, self.state)
        self.enterRule(localctx, 206, self.RULE_output_terminal)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2139
            self.net_lvalue()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Cmos_switchtypeContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_cmos_switchtype

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterCmos_switchtype" ):
                listener.enterCmos_switchtype(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitCmos_switchtype" ):
                listener.exitCmos_switchtype(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitCmos_switchtype" ):
                return visitor.visitCmos_switchtype(self)
            else:
                return visitor.visitChildren(self)




    def cmos_switchtype(self):

        localctx = Verilog2001Parser.Cmos_switchtypeContext(self, self._ctx, self.state)
        self.enterRule(localctx, 208, self.RULE_cmos_switchtype)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2141
            _la = self._input.LA(1)
            if not(_la==Verilog2001Parser.T__72 or _la==Verilog2001Parser.T__73):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Enable_gatetypeContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_enable_gatetype

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterEnable_gatetype" ):
                listener.enterEnable_gatetype(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitEnable_gatetype" ):
                listener.exitEnable_gatetype(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitEnable_gatetype" ):
                return visitor.visitEnable_gatetype(self)
            else:
                return visitor.visitChildren(self)




    def enable_gatetype(self):

        localctx = Verilog2001Parser.Enable_gatetypeContext(self, self._ctx, self.state)
        self.enterRule(localctx, 210, self.RULE_enable_gatetype)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2143
            _la = self._input.LA(1)
            if not(((((_la - 75)) & ~0x3f) == 0 and ((1 << (_la - 75)) & ((1 << (Verilog2001Parser.T__74 - 75)) | (1 << (Verilog2001Parser.T__75 - 75)) | (1 << (Verilog2001Parser.T__76 - 75)) | (1 << (Verilog2001Parser.T__77 - 75)))) != 0)):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Mos_switchtypeContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_mos_switchtype

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterMos_switchtype" ):
                listener.enterMos_switchtype(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitMos_switchtype" ):
                listener.exitMos_switchtype(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitMos_switchtype" ):
                return visitor.visitMos_switchtype(self)
            else:
                return visitor.visitChildren(self)




    def mos_switchtype(self):

        localctx = Verilog2001Parser.Mos_switchtypeContext(self, self._ctx, self.state)
        self.enterRule(localctx, 212, self.RULE_mos_switchtype)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2145
            _la = self._input.LA(1)
            if not(((((_la - 79)) & ~0x3f) == 0 and ((1 << (_la - 79)) & ((1 << (Verilog2001Parser.T__78 - 79)) | (1 << (Verilog2001Parser.T__79 - 79)) | (1 << (Verilog2001Parser.T__80 - 79)) | (1 << (Verilog2001Parser.T__81 - 79)))) != 0)):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class N_input_gatetypeContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_n_input_gatetype

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterN_input_gatetype" ):
                listener.enterN_input_gatetype(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitN_input_gatetype" ):
                listener.exitN_input_gatetype(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitN_input_gatetype" ):
                return visitor.visitN_input_gatetype(self)
            else:
                return visitor.visitChildren(self)




    def n_input_gatetype(self):

        localctx = Verilog2001Parser.N_input_gatetypeContext(self, self._ctx, self.state)
        self.enterRule(localctx, 214, self.RULE_n_input_gatetype)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2147
            _la = self._input.LA(1)
            if not(((((_la - 83)) & ~0x3f) == 0 and ((1 << (_la - 83)) & ((1 << (Verilog2001Parser.T__82 - 83)) | (1 << (Verilog2001Parser.T__83 - 83)) | (1 << (Verilog2001Parser.T__84 - 83)) | (1 << (Verilog2001Parser.T__85 - 83)) | (1 << (Verilog2001Parser.T__86 - 83)) | (1 << (Verilog2001Parser.T__87 - 83)))) != 0)):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class N_output_gatetypeContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_n_output_gatetype

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterN_output_gatetype" ):
                listener.enterN_output_gatetype(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitN_output_gatetype" ):
                listener.exitN_output_gatetype(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitN_output_gatetype" ):
                return visitor.visitN_output_gatetype(self)
            else:
                return visitor.visitChildren(self)




    def n_output_gatetype(self):

        localctx = Verilog2001Parser.N_output_gatetypeContext(self, self._ctx, self.state)
        self.enterRule(localctx, 216, self.RULE_n_output_gatetype)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2149
            _la = self._input.LA(1)
            if not(_la==Verilog2001Parser.T__88 or _la==Verilog2001Parser.T__89):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Pass_en_switchtypeContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_pass_en_switchtype

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPass_en_switchtype" ):
                listener.enterPass_en_switchtype(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPass_en_switchtype" ):
                listener.exitPass_en_switchtype(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPass_en_switchtype" ):
                return visitor.visitPass_en_switchtype(self)
            else:
                return visitor.visitChildren(self)




    def pass_en_switchtype(self):

        localctx = Verilog2001Parser.Pass_en_switchtypeContext(self, self._ctx, self.state)
        self.enterRule(localctx, 218, self.RULE_pass_en_switchtype)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2151
            _la = self._input.LA(1)
            if not(((((_la - 91)) & ~0x3f) == 0 and ((1 << (_la - 91)) & ((1 << (Verilog2001Parser.T__90 - 91)) | (1 << (Verilog2001Parser.T__91 - 91)) | (1 << (Verilog2001Parser.T__92 - 91)) | (1 << (Verilog2001Parser.T__93 - 91)))) != 0)):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Pass_switchtypeContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_pass_switchtype

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPass_switchtype" ):
                listener.enterPass_switchtype(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPass_switchtype" ):
                listener.exitPass_switchtype(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPass_switchtype" ):
                return visitor.visitPass_switchtype(self)
            else:
                return visitor.visitChildren(self)




    def pass_switchtype(self):

        localctx = Verilog2001Parser.Pass_switchtypeContext(self, self._ctx, self.state)
        self.enterRule(localctx, 220, self.RULE_pass_switchtype)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2153
            _la = self._input.LA(1)
            if not(_la==Verilog2001Parser.T__94 or _la==Verilog2001Parser.T__95):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Module_instantiationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def module_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Module_identifierContext,0)


        def module_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Module_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Module_instanceContext,i)


        def parameter_value_assignment(self):
            return self.getTypedRuleContext(Verilog2001Parser.Parameter_value_assignmentContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_module_instantiation

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterModule_instantiation" ):
                listener.enterModule_instantiation(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitModule_instantiation" ):
                listener.exitModule_instantiation(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitModule_instantiation" ):
                return visitor.visitModule_instantiation(self)
            else:
                return visitor.visitChildren(self)




    def module_instantiation(self):

        localctx = Verilog2001Parser.Module_instantiationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 222, self.RULE_module_instantiation)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2155
            self.module_identifier()
            self.state = 2157
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__14:
                self.state = 2156
                self.parameter_value_assignment()


            self.state = 2159
            self.module_instance()
            self.state = 2164
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 2160
                self.match(Verilog2001Parser.T__16)
                self.state = 2161
                self.module_instance()
                self.state = 2166
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 2167
            self.match(Verilog2001Parser.T__1)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Parameter_value_assignmentContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_parameter_assignments(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_parameter_assignmentsContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_parameter_value_assignment

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterParameter_value_assignment" ):
                listener.enterParameter_value_assignment(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitParameter_value_assignment" ):
                listener.exitParameter_value_assignment(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitParameter_value_assignment" ):
                return visitor.visitParameter_value_assignment(self)
            else:
                return visitor.visitChildren(self)




    def parameter_value_assignment(self):

        localctx = Verilog2001Parser.Parameter_value_assignmentContext(self, self._ctx, self.state)
        self.enterRule(localctx, 224, self.RULE_parameter_value_assignment)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2169
            self.match(Verilog2001Parser.T__14)
            self.state = 2170
            self.match(Verilog2001Parser.T__15)
            self.state = 2171
            self.list_of_parameter_assignments()
            self.state = 2172
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class List_of_parameter_assignmentsContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def ordered_parameter_assignment(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Ordered_parameter_assignmentContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Ordered_parameter_assignmentContext,i)


        def named_parameter_assignment(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Named_parameter_assignmentContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Named_parameter_assignmentContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_list_of_parameter_assignments

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterList_of_parameter_assignments" ):
                listener.enterList_of_parameter_assignments(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitList_of_parameter_assignments" ):
                listener.exitList_of_parameter_assignments(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitList_of_parameter_assignments" ):
                return visitor.visitList_of_parameter_assignments(self)
            else:
                return visitor.visitChildren(self)




    def list_of_parameter_assignments(self):

        localctx = Verilog2001Parser.List_of_parameter_assignmentsContext(self, self._ctx, self.state)
        self.enterRule(localctx, 226, self.RULE_list_of_parameter_assignments)
        self._la = 0 # Token type
        try:
            self.state = 2190
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__15, Verilog2001Parser.T__18, Verilog2001Parser.T__135, Verilog2001Parser.T__136, Verilog2001Parser.T__140, Verilog2001Parser.T__141, Verilog2001Parser.T__142, Verilog2001Parser.T__143, Verilog2001Parser.T__144, Verilog2001Parser.T__145, Verilog2001Parser.T__146, Verilog2001Parser.T__147, Verilog2001Parser.T__148, Verilog2001Parser.Real_number, Verilog2001Parser.Decimal_number, Verilog2001Parser.Binary_number, Verilog2001Parser.Octal_number, Verilog2001Parser.Hex_number, Verilog2001Parser.String, Verilog2001Parser.Escaped_identifier, Verilog2001Parser.Simple_identifier, Verilog2001Parser.Dollar_Identifier]:
                self.enterOuterAlt(localctx, 1)
                self.state = 2174
                self.ordered_parameter_assignment()
                self.state = 2179
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 2175
                    self.match(Verilog2001Parser.T__16)
                    self.state = 2176
                    self.ordered_parameter_assignment()
                    self.state = 2181
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                pass
            elif token in [Verilog2001Parser.T__4]:
                self.enterOuterAlt(localctx, 2)
                self.state = 2182
                self.named_parameter_assignment()
                self.state = 2187
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 2183
                    self.match(Verilog2001Parser.T__16)
                    self.state = 2184
                    self.named_parameter_assignment()
                    self.state = 2189
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Ordered_parameter_assignmentContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_ordered_parameter_assignment

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterOrdered_parameter_assignment" ):
                listener.enterOrdered_parameter_assignment(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitOrdered_parameter_assignment" ):
                listener.exitOrdered_parameter_assignment(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitOrdered_parameter_assignment" ):
                return visitor.visitOrdered_parameter_assignment(self)
            else:
                return visitor.visitChildren(self)




    def ordered_parameter_assignment(self):

        localctx = Verilog2001Parser.Ordered_parameter_assignmentContext(self, self._ctx, self.state)
        self.enterRule(localctx, 228, self.RULE_ordered_parameter_assignment)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2192
            self.expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Named_parameter_assignmentContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def parameter_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Parameter_identifierContext,0)


        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_named_parameter_assignment

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterNamed_parameter_assignment" ):
                listener.enterNamed_parameter_assignment(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitNamed_parameter_assignment" ):
                listener.exitNamed_parameter_assignment(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitNamed_parameter_assignment" ):
                return visitor.visitNamed_parameter_assignment(self)
            else:
                return visitor.visitChildren(self)




    def named_parameter_assignment(self):

        localctx = Verilog2001Parser.Named_parameter_assignmentContext(self, self._ctx, self.state)
        self.enterRule(localctx, 230, self.RULE_named_parameter_assignment)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2194
            self.match(Verilog2001Parser.T__4)
            self.state = 2195
            self.parameter_identifier()
            self.state = 2196
            self.match(Verilog2001Parser.T__15)
            self.state = 2198
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__15 or _la==Verilog2001Parser.T__18 or ((((_la - 136)) & ~0x3f) == 0 and ((1 << (_la - 136)) & ((1 << (Verilog2001Parser.T__135 - 136)) | (1 << (Verilog2001Parser.T__136 - 136)) | (1 << (Verilog2001Parser.T__140 - 136)) | (1 << (Verilog2001Parser.T__141 - 136)) | (1 << (Verilog2001Parser.T__142 - 136)) | (1 << (Verilog2001Parser.T__143 - 136)) | (1 << (Verilog2001Parser.T__144 - 136)) | (1 << (Verilog2001Parser.T__145 - 136)) | (1 << (Verilog2001Parser.T__146 - 136)) | (1 << (Verilog2001Parser.T__147 - 136)) | (1 << (Verilog2001Parser.T__148 - 136)) | (1 << (Verilog2001Parser.Real_number - 136)) | (1 << (Verilog2001Parser.Decimal_number - 136)) | (1 << (Verilog2001Parser.Binary_number - 136)) | (1 << (Verilog2001Parser.Octal_number - 136)) | (1 << (Verilog2001Parser.Hex_number - 136)) | (1 << (Verilog2001Parser.String - 136)) | (1 << (Verilog2001Parser.Escaped_identifier - 136)) | (1 << (Verilog2001Parser.Simple_identifier - 136)) | (1 << (Verilog2001Parser.Dollar_Identifier - 136)))) != 0):
                self.state = 2197
                self.expression()


            self.state = 2200
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Module_instanceContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def name_of_instance(self):
            return self.getTypedRuleContext(Verilog2001Parser.Name_of_instanceContext,0)


        def list_of_port_connections(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_port_connectionsContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_module_instance

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterModule_instance" ):
                listener.enterModule_instance(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitModule_instance" ):
                listener.exitModule_instance(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitModule_instance" ):
                return visitor.visitModule_instance(self)
            else:
                return visitor.visitChildren(self)




    def module_instance(self):

        localctx = Verilog2001Parser.Module_instanceContext(self, self._ctx, self.state)
        self.enterRule(localctx, 232, self.RULE_module_instance)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2202
            self.name_of_instance()
            self.state = 2203
            self.match(Verilog2001Parser.T__15)
            self.state = 2204
            self.list_of_port_connections()
            self.state = 2205
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Name_of_instanceContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def module_instance_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Module_instance_identifierContext,0)


        def range_(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_Context,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_name_of_instance

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterName_of_instance" ):
                listener.enterName_of_instance(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitName_of_instance" ):
                listener.exitName_of_instance(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitName_of_instance" ):
                return visitor.visitName_of_instance(self)
            else:
                return visitor.visitChildren(self)




    def name_of_instance(self):

        localctx = Verilog2001Parser.Name_of_instanceContext(self, self._ctx, self.state)
        self.enterRule(localctx, 234, self.RULE_name_of_instance)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2207
            self.module_instance_identifier()
            self.state = 2209
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__20:
                self.state = 2208
                self.range_()


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class List_of_port_connectionsContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def ordered_port_connection(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Ordered_port_connectionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Ordered_port_connectionContext,i)


        def named_port_connection(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Named_port_connectionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Named_port_connectionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_list_of_port_connections

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterList_of_port_connections" ):
                listener.enterList_of_port_connections(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitList_of_port_connections" ):
                listener.exitList_of_port_connections(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitList_of_port_connections" ):
                return visitor.visitList_of_port_connections(self)
            else:
                return visitor.visitChildren(self)




    def list_of_port_connections(self):

        localctx = Verilog2001Parser.List_of_port_connectionsContext(self, self._ctx, self.state)
        self.enterRule(localctx, 236, self.RULE_list_of_port_connections)
        self._la = 0 # Token type
        try:
            self.state = 2227
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,235,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 2211
                self.ordered_port_connection()
                self.state = 2216
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 2212
                    self.match(Verilog2001Parser.T__16)
                    self.state = 2213
                    self.ordered_port_connection()
                    self.state = 2218
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 2219
                self.named_port_connection()
                self.state = 2224
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 2220
                    self.match(Verilog2001Parser.T__16)
                    self.state = 2221
                    self.named_port_connection()
                    self.state = 2226
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Ordered_port_connectionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_ordered_port_connection

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterOrdered_port_connection" ):
                listener.enterOrdered_port_connection(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitOrdered_port_connection" ):
                listener.exitOrdered_port_connection(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitOrdered_port_connection" ):
                return visitor.visitOrdered_port_connection(self)
            else:
                return visitor.visitChildren(self)




    def ordered_port_connection(self):

        localctx = Verilog2001Parser.Ordered_port_connectionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 238, self.RULE_ordered_port_connection)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2232
            self._errHandler.sync(self)
            _alt = self._interp.adaptivePredict(self._input,236,self._ctx)
            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                if _alt==1:
                    self.state = 2229
                    self.attribute_instance() 
                self.state = 2234
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,236,self._ctx)

            self.state = 2236
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__15 or _la==Verilog2001Parser.T__18 or ((((_la - 136)) & ~0x3f) == 0 and ((1 << (_la - 136)) & ((1 << (Verilog2001Parser.T__135 - 136)) | (1 << (Verilog2001Parser.T__136 - 136)) | (1 << (Verilog2001Parser.T__140 - 136)) | (1 << (Verilog2001Parser.T__141 - 136)) | (1 << (Verilog2001Parser.T__142 - 136)) | (1 << (Verilog2001Parser.T__143 - 136)) | (1 << (Verilog2001Parser.T__144 - 136)) | (1 << (Verilog2001Parser.T__145 - 136)) | (1 << (Verilog2001Parser.T__146 - 136)) | (1 << (Verilog2001Parser.T__147 - 136)) | (1 << (Verilog2001Parser.T__148 - 136)) | (1 << (Verilog2001Parser.Real_number - 136)) | (1 << (Verilog2001Parser.Decimal_number - 136)) | (1 << (Verilog2001Parser.Binary_number - 136)) | (1 << (Verilog2001Parser.Octal_number - 136)) | (1 << (Verilog2001Parser.Hex_number - 136)) | (1 << (Verilog2001Parser.String - 136)) | (1 << (Verilog2001Parser.Escaped_identifier - 136)) | (1 << (Verilog2001Parser.Simple_identifier - 136)) | (1 << (Verilog2001Parser.Dollar_Identifier - 136)))) != 0):
                self.state = 2235
                self.expression()


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Named_port_connectionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def port_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Port_identifierContext,0)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_named_port_connection

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterNamed_port_connection" ):
                listener.enterNamed_port_connection(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitNamed_port_connection" ):
                listener.exitNamed_port_connection(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitNamed_port_connection" ):
                return visitor.visitNamed_port_connection(self)
            else:
                return visitor.visitChildren(self)




    def named_port_connection(self):

        localctx = Verilog2001Parser.Named_port_connectionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 240, self.RULE_named_port_connection)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2241
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__15:
                self.state = 2238
                self.attribute_instance()
                self.state = 2243
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 2244
            self.match(Verilog2001Parser.T__4)
            self.state = 2245
            self.port_identifier()
            self.state = 2246
            self.match(Verilog2001Parser.T__15)
            self.state = 2248
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__15 or _la==Verilog2001Parser.T__18 or ((((_la - 136)) & ~0x3f) == 0 and ((1 << (_la - 136)) & ((1 << (Verilog2001Parser.T__135 - 136)) | (1 << (Verilog2001Parser.T__136 - 136)) | (1 << (Verilog2001Parser.T__140 - 136)) | (1 << (Verilog2001Parser.T__141 - 136)) | (1 << (Verilog2001Parser.T__142 - 136)) | (1 << (Verilog2001Parser.T__143 - 136)) | (1 << (Verilog2001Parser.T__144 - 136)) | (1 << (Verilog2001Parser.T__145 - 136)) | (1 << (Verilog2001Parser.T__146 - 136)) | (1 << (Verilog2001Parser.T__147 - 136)) | (1 << (Verilog2001Parser.T__148 - 136)) | (1 << (Verilog2001Parser.Real_number - 136)) | (1 << (Verilog2001Parser.Decimal_number - 136)) | (1 << (Verilog2001Parser.Binary_number - 136)) | (1 << (Verilog2001Parser.Octal_number - 136)) | (1 << (Verilog2001Parser.Hex_number - 136)) | (1 << (Verilog2001Parser.String - 136)) | (1 << (Verilog2001Parser.Escaped_identifier - 136)) | (1 << (Verilog2001Parser.Simple_identifier - 136)) | (1 << (Verilog2001Parser.Dollar_Identifier - 136)))) != 0):
                self.state = 2247
                self.expression()


            self.state = 2250
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Generated_instantiationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def generate_item(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Generate_itemContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Generate_itemContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_generated_instantiation

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterGenerated_instantiation" ):
                listener.enterGenerated_instantiation(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitGenerated_instantiation" ):
                listener.exitGenerated_instantiation(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitGenerated_instantiation" ):
                return visitor.visitGenerated_instantiation(self)
            else:
                return visitor.visitChildren(self)




    def generated_instantiation(self):

        localctx = Verilog2001Parser.Generated_instantiationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 242, self.RULE_generated_instantiation)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2252
            self.match(Verilog2001Parser.T__96)
            self.state = 2256
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__15) | (1 << Verilog2001Parser.T__22) | (1 << Verilog2001Parser.T__25) | (1 << Verilog2001Parser.T__26) | (1 << Verilog2001Parser.T__27) | (1 << Verilog2001Parser.T__28) | (1 << Verilog2001Parser.T__34) | (1 << Verilog2001Parser.T__35) | (1 << Verilog2001Parser.T__36) | (1 << Verilog2001Parser.T__37) | (1 << Verilog2001Parser.T__40) | (1 << Verilog2001Parser.T__41) | (1 << Verilog2001Parser.T__42) | (1 << Verilog2001Parser.T__43) | (1 << Verilog2001Parser.T__44) | (1 << Verilog2001Parser.T__45) | (1 << Verilog2001Parser.T__46) | (1 << Verilog2001Parser.T__47) | (1 << Verilog2001Parser.T__48) | (1 << Verilog2001Parser.T__49))) != 0) or ((((_la - 66)) & ~0x3f) == 0 and ((1 << (_la - 66)) & ((1 << (Verilog2001Parser.T__65 - 66)) | (1 << (Verilog2001Parser.T__68 - 66)) | (1 << (Verilog2001Parser.T__70 - 66)) | (1 << (Verilog2001Parser.T__71 - 66)) | (1 << (Verilog2001Parser.T__72 - 66)) | (1 << (Verilog2001Parser.T__73 - 66)) | (1 << (Verilog2001Parser.T__74 - 66)) | (1 << (Verilog2001Parser.T__75 - 66)) | (1 << (Verilog2001Parser.T__76 - 66)) | (1 << (Verilog2001Parser.T__77 - 66)) | (1 << (Verilog2001Parser.T__78 - 66)) | (1 << (Verilog2001Parser.T__79 - 66)) | (1 << (Verilog2001Parser.T__80 - 66)) | (1 << (Verilog2001Parser.T__81 - 66)) | (1 << (Verilog2001Parser.T__82 - 66)) | (1 << (Verilog2001Parser.T__83 - 66)) | (1 << (Verilog2001Parser.T__84 - 66)) | (1 << (Verilog2001Parser.T__85 - 66)) | (1 << (Verilog2001Parser.T__86 - 66)) | (1 << (Verilog2001Parser.T__87 - 66)) | (1 << (Verilog2001Parser.T__88 - 66)) | (1 << (Verilog2001Parser.T__89 - 66)) | (1 << (Verilog2001Parser.T__90 - 66)) | (1 << (Verilog2001Parser.T__91 - 66)) | (1 << (Verilog2001Parser.T__92 - 66)) | (1 << (Verilog2001Parser.T__93 - 66)) | (1 << (Verilog2001Parser.T__94 - 66)) | (1 << (Verilog2001Parser.T__95 - 66)) | (1 << (Verilog2001Parser.T__98 - 66)) | (1 << (Verilog2001Parser.T__100 - 66)) | (1 << (Verilog2001Parser.T__102 - 66)) | (1 << (Verilog2001Parser.T__103 - 66)) | (1 << (Verilog2001Parser.T__105 - 66)) | (1 << (Verilog2001Parser.T__106 - 66)) | (1 << (Verilog2001Parser.T__107 - 66)))) != 0) or _la==Verilog2001Parser.Escaped_identifier or _la==Verilog2001Parser.Simple_identifier:
                self.state = 2253
                self.generate_item()
                self.state = 2258
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 2259
            self.match(Verilog2001Parser.T__97)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Generate_item_or_nullContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def generate_item(self):
            return self.getTypedRuleContext(Verilog2001Parser.Generate_itemContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_generate_item_or_null

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterGenerate_item_or_null" ):
                listener.enterGenerate_item_or_null(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitGenerate_item_or_null" ):
                listener.exitGenerate_item_or_null(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitGenerate_item_or_null" ):
                return visitor.visitGenerate_item_or_null(self)
            else:
                return visitor.visitChildren(self)




    def generate_item_or_null(self):

        localctx = Verilog2001Parser.Generate_item_or_nullContext(self, self._ctx, self.state)
        self.enterRule(localctx, 244, self.RULE_generate_item_or_null)
        try:
            self.state = 2263
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__15, Verilog2001Parser.T__22, Verilog2001Parser.T__25, Verilog2001Parser.T__26, Verilog2001Parser.T__27, Verilog2001Parser.T__28, Verilog2001Parser.T__34, Verilog2001Parser.T__35, Verilog2001Parser.T__36, Verilog2001Parser.T__37, Verilog2001Parser.T__40, Verilog2001Parser.T__41, Verilog2001Parser.T__42, Verilog2001Parser.T__43, Verilog2001Parser.T__44, Verilog2001Parser.T__45, Verilog2001Parser.T__46, Verilog2001Parser.T__47, Verilog2001Parser.T__48, Verilog2001Parser.T__49, Verilog2001Parser.T__65, Verilog2001Parser.T__68, Verilog2001Parser.T__70, Verilog2001Parser.T__71, Verilog2001Parser.T__72, Verilog2001Parser.T__73, Verilog2001Parser.T__74, Verilog2001Parser.T__75, Verilog2001Parser.T__76, Verilog2001Parser.T__77, Verilog2001Parser.T__78, Verilog2001Parser.T__79, Verilog2001Parser.T__80, Verilog2001Parser.T__81, Verilog2001Parser.T__82, Verilog2001Parser.T__83, Verilog2001Parser.T__84, Verilog2001Parser.T__85, Verilog2001Parser.T__86, Verilog2001Parser.T__87, Verilog2001Parser.T__88, Verilog2001Parser.T__89, Verilog2001Parser.T__90, Verilog2001Parser.T__91, Verilog2001Parser.T__92, Verilog2001Parser.T__93, Verilog2001Parser.T__94, Verilog2001Parser.T__95, Verilog2001Parser.T__98, Verilog2001Parser.T__100, Verilog2001Parser.T__102, Verilog2001Parser.T__103, Verilog2001Parser.T__105, Verilog2001Parser.T__106, Verilog2001Parser.T__107, Verilog2001Parser.Escaped_identifier, Verilog2001Parser.Simple_identifier]:
                self.enterOuterAlt(localctx, 1)
                self.state = 2261
                self.generate_item()
                pass
            elif token in [Verilog2001Parser.T__1]:
                self.enterOuterAlt(localctx, 2)
                self.state = 2262
                self.match(Verilog2001Parser.T__1)
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Generate_itemContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def generate_conditional_statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.Generate_conditional_statementContext,0)


        def generate_case_statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.Generate_case_statementContext,0)


        def generate_loop_statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.Generate_loop_statementContext,0)


        def generate_block(self):
            return self.getTypedRuleContext(Verilog2001Parser.Generate_blockContext,0)


        def module_or_generate_item(self):
            return self.getTypedRuleContext(Verilog2001Parser.Module_or_generate_itemContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_generate_item

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterGenerate_item" ):
                listener.enterGenerate_item(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitGenerate_item" ):
                listener.exitGenerate_item(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitGenerate_item" ):
                return visitor.visitGenerate_item(self)
            else:
                return visitor.visitChildren(self)




    def generate_item(self):

        localctx = Verilog2001Parser.Generate_itemContext(self, self._ctx, self.state)
        self.enterRule(localctx, 246, self.RULE_generate_item)
        try:
            self.state = 2270
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__98]:
                self.enterOuterAlt(localctx, 1)
                self.state = 2265
                self.generate_conditional_statement()
                pass
            elif token in [Verilog2001Parser.T__100]:
                self.enterOuterAlt(localctx, 2)
                self.state = 2266
                self.generate_case_statement()
                pass
            elif token in [Verilog2001Parser.T__102]:
                self.enterOuterAlt(localctx, 3)
                self.state = 2267
                self.generate_loop_statement()
                pass
            elif token in [Verilog2001Parser.T__103]:
                self.enterOuterAlt(localctx, 4)
                self.state = 2268
                self.generate_block()
                pass
            elif token in [Verilog2001Parser.T__15, Verilog2001Parser.T__22, Verilog2001Parser.T__25, Verilog2001Parser.T__26, Verilog2001Parser.T__27, Verilog2001Parser.T__28, Verilog2001Parser.T__34, Verilog2001Parser.T__35, Verilog2001Parser.T__36, Verilog2001Parser.T__37, Verilog2001Parser.T__40, Verilog2001Parser.T__41, Verilog2001Parser.T__42, Verilog2001Parser.T__43, Verilog2001Parser.T__44, Verilog2001Parser.T__45, Verilog2001Parser.T__46, Verilog2001Parser.T__47, Verilog2001Parser.T__48, Verilog2001Parser.T__49, Verilog2001Parser.T__65, Verilog2001Parser.T__68, Verilog2001Parser.T__70, Verilog2001Parser.T__71, Verilog2001Parser.T__72, Verilog2001Parser.T__73, Verilog2001Parser.T__74, Verilog2001Parser.T__75, Verilog2001Parser.T__76, Verilog2001Parser.T__77, Verilog2001Parser.T__78, Verilog2001Parser.T__79, Verilog2001Parser.T__80, Verilog2001Parser.T__81, Verilog2001Parser.T__82, Verilog2001Parser.T__83, Verilog2001Parser.T__84, Verilog2001Parser.T__85, Verilog2001Parser.T__86, Verilog2001Parser.T__87, Verilog2001Parser.T__88, Verilog2001Parser.T__89, Verilog2001Parser.T__90, Verilog2001Parser.T__91, Verilog2001Parser.T__92, Verilog2001Parser.T__93, Verilog2001Parser.T__94, Verilog2001Parser.T__95, Verilog2001Parser.T__105, Verilog2001Parser.T__106, Verilog2001Parser.T__107, Verilog2001Parser.Escaped_identifier, Verilog2001Parser.Simple_identifier]:
                self.enterOuterAlt(localctx, 5)
                self.state = 2269
                self.module_or_generate_item()
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Generate_conditional_statementContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def generate_item_or_null(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Generate_item_or_nullContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Generate_item_or_nullContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_generate_conditional_statement

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterGenerate_conditional_statement" ):
                listener.enterGenerate_conditional_statement(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitGenerate_conditional_statement" ):
                listener.exitGenerate_conditional_statement(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitGenerate_conditional_statement" ):
                return visitor.visitGenerate_conditional_statement(self)
            else:
                return visitor.visitChildren(self)




    def generate_conditional_statement(self):

        localctx = Verilog2001Parser.Generate_conditional_statementContext(self, self._ctx, self.state)
        self.enterRule(localctx, 248, self.RULE_generate_conditional_statement)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2272
            self.match(Verilog2001Parser.T__98)
            self.state = 2273
            self.match(Verilog2001Parser.T__15)
            self.state = 2274
            self.constant_expression()
            self.state = 2275
            self.match(Verilog2001Parser.T__17)
            self.state = 2276
            self.generate_item_or_null()
            self.state = 2279
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,243,self._ctx)
            if la_ == 1:
                self.state = 2277
                self.match(Verilog2001Parser.T__99)
                self.state = 2278
                self.generate_item_or_null()


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Generate_case_statementContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def genvar_case_item(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Genvar_case_itemContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Genvar_case_itemContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_generate_case_statement

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterGenerate_case_statement" ):
                listener.enterGenerate_case_statement(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitGenerate_case_statement" ):
                listener.exitGenerate_case_statement(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitGenerate_case_statement" ):
                return visitor.visitGenerate_case_statement(self)
            else:
                return visitor.visitChildren(self)




    def generate_case_statement(self):

        localctx = Verilog2001Parser.Generate_case_statementContext(self, self._ctx, self.state)
        self.enterRule(localctx, 250, self.RULE_generate_case_statement)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2281
            self.match(Verilog2001Parser.T__100)
            self.state = 2282
            self.match(Verilog2001Parser.T__15)
            self.state = 2283
            self.constant_expression()
            self.state = 2284
            self.match(Verilog2001Parser.T__17)
            self.state = 2285
            self.genvar_case_item()
            self.state = 2289
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__5) | (1 << Verilog2001Parser.T__15) | (1 << Verilog2001Parser.T__18))) != 0) or ((((_la - 136)) & ~0x3f) == 0 and ((1 << (_la - 136)) & ((1 << (Verilog2001Parser.T__135 - 136)) | (1 << (Verilog2001Parser.T__136 - 136)) | (1 << (Verilog2001Parser.T__140 - 136)) | (1 << (Verilog2001Parser.T__141 - 136)) | (1 << (Verilog2001Parser.T__142 - 136)) | (1 << (Verilog2001Parser.T__143 - 136)) | (1 << (Verilog2001Parser.T__144 - 136)) | (1 << (Verilog2001Parser.T__145 - 136)) | (1 << (Verilog2001Parser.T__146 - 136)) | (1 << (Verilog2001Parser.T__147 - 136)) | (1 << (Verilog2001Parser.T__148 - 136)) | (1 << (Verilog2001Parser.Real_number - 136)) | (1 << (Verilog2001Parser.Decimal_number - 136)) | (1 << (Verilog2001Parser.Binary_number - 136)) | (1 << (Verilog2001Parser.Octal_number - 136)) | (1 << (Verilog2001Parser.Hex_number - 136)) | (1 << (Verilog2001Parser.String - 136)) | (1 << (Verilog2001Parser.Escaped_identifier - 136)) | (1 << (Verilog2001Parser.Simple_identifier - 136)) | (1 << (Verilog2001Parser.Dollar_Identifier - 136)))) != 0):
                self.state = 2286
                self.genvar_case_item()
                self.state = 2291
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 2292
            self.match(Verilog2001Parser.T__101)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Genvar_case_itemContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def constant_expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Constant_expressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,i)


        def generate_item_or_null(self):
            return self.getTypedRuleContext(Verilog2001Parser.Generate_item_or_nullContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_genvar_case_item

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterGenvar_case_item" ):
                listener.enterGenvar_case_item(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitGenvar_case_item" ):
                listener.exitGenvar_case_item(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitGenvar_case_item" ):
                return visitor.visitGenvar_case_item(self)
            else:
                return visitor.visitChildren(self)




    def genvar_case_item(self):

        localctx = Verilog2001Parser.Genvar_case_itemContext(self, self._ctx, self.state)
        self.enterRule(localctx, 252, self.RULE_genvar_case_item)
        self._la = 0 # Token type
        try:
            self.state = 2310
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__15, Verilog2001Parser.T__18, Verilog2001Parser.T__135, Verilog2001Parser.T__136, Verilog2001Parser.T__140, Verilog2001Parser.T__141, Verilog2001Parser.T__142, Verilog2001Parser.T__143, Verilog2001Parser.T__144, Verilog2001Parser.T__145, Verilog2001Parser.T__146, Verilog2001Parser.T__147, Verilog2001Parser.T__148, Verilog2001Parser.Real_number, Verilog2001Parser.Decimal_number, Verilog2001Parser.Binary_number, Verilog2001Parser.Octal_number, Verilog2001Parser.Hex_number, Verilog2001Parser.String, Verilog2001Parser.Escaped_identifier, Verilog2001Parser.Simple_identifier, Verilog2001Parser.Dollar_Identifier]:
                self.enterOuterAlt(localctx, 1)
                self.state = 2294
                self.constant_expression()
                self.state = 2299
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 2295
                    self.match(Verilog2001Parser.T__16)
                    self.state = 2296
                    self.constant_expression()
                    self.state = 2301
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2302
                self.match(Verilog2001Parser.T__64)
                self.state = 2303
                self.generate_item_or_null()
                pass
            elif token in [Verilog2001Parser.T__5]:
                self.enterOuterAlt(localctx, 2)
                self.state = 2305
                self.match(Verilog2001Parser.T__5)
                self.state = 2307
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__64:
                    self.state = 2306
                    self.match(Verilog2001Parser.T__64)


                self.state = 2309
                self.generate_item_or_null()
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Generate_loop_statementContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def genvar_assignment(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Genvar_assignmentContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Genvar_assignmentContext,i)


        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def generate_block(self):
            return self.getTypedRuleContext(Verilog2001Parser.Generate_blockContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_generate_loop_statement

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterGenerate_loop_statement" ):
                listener.enterGenerate_loop_statement(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitGenerate_loop_statement" ):
                listener.exitGenerate_loop_statement(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitGenerate_loop_statement" ):
                return visitor.visitGenerate_loop_statement(self)
            else:
                return visitor.visitChildren(self)




    def generate_loop_statement(self):

        localctx = Verilog2001Parser.Generate_loop_statementContext(self, self._ctx, self.state)
        self.enterRule(localctx, 254, self.RULE_generate_loop_statement)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2312
            self.match(Verilog2001Parser.T__102)
            self.state = 2313
            self.match(Verilog2001Parser.T__15)
            self.state = 2314
            self.genvar_assignment()
            self.state = 2315
            self.match(Verilog2001Parser.T__1)
            self.state = 2316
            self.constant_expression()
            self.state = 2317
            self.match(Verilog2001Parser.T__1)
            self.state = 2318
            self.genvar_assignment()
            self.state = 2319
            self.match(Verilog2001Parser.T__17)
            self.state = 2320
            self.generate_block()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Genvar_assignmentContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def genvar_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Genvar_identifierContext,0)


        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_genvar_assignment

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterGenvar_assignment" ):
                listener.enterGenvar_assignment(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitGenvar_assignment" ):
                listener.exitGenvar_assignment(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitGenvar_assignment" ):
                return visitor.visitGenvar_assignment(self)
            else:
                return visitor.visitChildren(self)




    def genvar_assignment(self):

        localctx = Verilog2001Parser.Genvar_assignmentContext(self, self._ctx, self.state)
        self.enterRule(localctx, 256, self.RULE_genvar_assignment)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2322
            self.genvar_identifier()
            self.state = 2323
            self.match(Verilog2001Parser.T__50)
            self.state = 2324
            self.constant_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Generate_blockContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def generate_block_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Generate_block_identifierContext,0)


        def generate_item(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Generate_itemContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Generate_itemContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_generate_block

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterGenerate_block" ):
                listener.enterGenerate_block(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitGenerate_block" ):
                listener.exitGenerate_block(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitGenerate_block" ):
                return visitor.visitGenerate_block(self)
            else:
                return visitor.visitChildren(self)




    def generate_block(self):

        localctx = Verilog2001Parser.Generate_blockContext(self, self._ctx, self.state)
        self.enterRule(localctx, 258, self.RULE_generate_block)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2326
            self.match(Verilog2001Parser.T__103)
            self.state = 2329
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__64:
                self.state = 2327
                self.match(Verilog2001Parser.T__64)
                self.state = 2328
                self.generate_block_identifier()


            self.state = 2334
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__15) | (1 << Verilog2001Parser.T__22) | (1 << Verilog2001Parser.T__25) | (1 << Verilog2001Parser.T__26) | (1 << Verilog2001Parser.T__27) | (1 << Verilog2001Parser.T__28) | (1 << Verilog2001Parser.T__34) | (1 << Verilog2001Parser.T__35) | (1 << Verilog2001Parser.T__36) | (1 << Verilog2001Parser.T__37) | (1 << Verilog2001Parser.T__40) | (1 << Verilog2001Parser.T__41) | (1 << Verilog2001Parser.T__42) | (1 << Verilog2001Parser.T__43) | (1 << Verilog2001Parser.T__44) | (1 << Verilog2001Parser.T__45) | (1 << Verilog2001Parser.T__46) | (1 << Verilog2001Parser.T__47) | (1 << Verilog2001Parser.T__48) | (1 << Verilog2001Parser.T__49))) != 0) or ((((_la - 66)) & ~0x3f) == 0 and ((1 << (_la - 66)) & ((1 << (Verilog2001Parser.T__65 - 66)) | (1 << (Verilog2001Parser.T__68 - 66)) | (1 << (Verilog2001Parser.T__70 - 66)) | (1 << (Verilog2001Parser.T__71 - 66)) | (1 << (Verilog2001Parser.T__72 - 66)) | (1 << (Verilog2001Parser.T__73 - 66)) | (1 << (Verilog2001Parser.T__74 - 66)) | (1 << (Verilog2001Parser.T__75 - 66)) | (1 << (Verilog2001Parser.T__76 - 66)) | (1 << (Verilog2001Parser.T__77 - 66)) | (1 << (Verilog2001Parser.T__78 - 66)) | (1 << (Verilog2001Parser.T__79 - 66)) | (1 << (Verilog2001Parser.T__80 - 66)) | (1 << (Verilog2001Parser.T__81 - 66)) | (1 << (Verilog2001Parser.T__82 - 66)) | (1 << (Verilog2001Parser.T__83 - 66)) | (1 << (Verilog2001Parser.T__84 - 66)) | (1 << (Verilog2001Parser.T__85 - 66)) | (1 << (Verilog2001Parser.T__86 - 66)) | (1 << (Verilog2001Parser.T__87 - 66)) | (1 << (Verilog2001Parser.T__88 - 66)) | (1 << (Verilog2001Parser.T__89 - 66)) | (1 << (Verilog2001Parser.T__90 - 66)) | (1 << (Verilog2001Parser.T__91 - 66)) | (1 << (Verilog2001Parser.T__92 - 66)) | (1 << (Verilog2001Parser.T__93 - 66)) | (1 << (Verilog2001Parser.T__94 - 66)) | (1 << (Verilog2001Parser.T__95 - 66)) | (1 << (Verilog2001Parser.T__98 - 66)) | (1 << (Verilog2001Parser.T__100 - 66)) | (1 << (Verilog2001Parser.T__102 - 66)) | (1 << (Verilog2001Parser.T__103 - 66)) | (1 << (Verilog2001Parser.T__105 - 66)) | (1 << (Verilog2001Parser.T__106 - 66)) | (1 << (Verilog2001Parser.T__107 - 66)))) != 0) or _la==Verilog2001Parser.Escaped_identifier or _la==Verilog2001Parser.Simple_identifier:
                self.state = 2331
                self.generate_item()
                self.state = 2336
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 2337
            self.match(Verilog2001Parser.T__104)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Continuous_assignContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_net_assignments(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_net_assignmentsContext,0)


        def drive_strength(self):
            return self.getTypedRuleContext(Verilog2001Parser.Drive_strengthContext,0)


        def delay3(self):
            return self.getTypedRuleContext(Verilog2001Parser.Delay3Context,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_continuous_assign

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterContinuous_assign" ):
                listener.enterContinuous_assign(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitContinuous_assign" ):
                listener.exitContinuous_assign(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitContinuous_assign" ):
                return visitor.visitContinuous_assign(self)
            else:
                return visitor.visitChildren(self)




    def continuous_assign(self):

        localctx = Verilog2001Parser.Continuous_assignContext(self, self._ctx, self.state)
        self.enterRule(localctx, 260, self.RULE_continuous_assign)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2339
            self.match(Verilog2001Parser.T__105)
            self.state = 2341
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__15:
                self.state = 2340
                self.drive_strength()


            self.state = 2344
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__14:
                self.state = 2343
                self.delay3()


            self.state = 2346
            self.list_of_net_assignments()
            self.state = 2347
            self.match(Verilog2001Parser.T__1)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class List_of_net_assignmentsContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def net_assignment(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Net_assignmentContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Net_assignmentContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_list_of_net_assignments

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterList_of_net_assignments" ):
                listener.enterList_of_net_assignments(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitList_of_net_assignments" ):
                listener.exitList_of_net_assignments(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitList_of_net_assignments" ):
                return visitor.visitList_of_net_assignments(self)
            else:
                return visitor.visitChildren(self)




    def list_of_net_assignments(self):

        localctx = Verilog2001Parser.List_of_net_assignmentsContext(self, self._ctx, self.state)
        self.enterRule(localctx, 262, self.RULE_list_of_net_assignments)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2349
            self.net_assignment()
            self.state = 2354
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 2350
                self.match(Verilog2001Parser.T__16)
                self.state = 2351
                self.net_assignment()
                self.state = 2356
                self._errHandler.sync(self)
                _la = self._input.LA(1)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Net_assignmentContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def net_lvalue(self):
            return self.getTypedRuleContext(Verilog2001Parser.Net_lvalueContext,0)


        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_net_assignment

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterNet_assignment" ):
                listener.enterNet_assignment(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitNet_assignment" ):
                listener.exitNet_assignment(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitNet_assignment" ):
                return visitor.visitNet_assignment(self)
            else:
                return visitor.visitChildren(self)




    def net_assignment(self):

        localctx = Verilog2001Parser.Net_assignmentContext(self, self._ctx, self.state)
        self.enterRule(localctx, 264, self.RULE_net_assignment)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2357
            self.net_lvalue()
            self.state = 2358
            self.match(Verilog2001Parser.T__50)
            self.state = 2359
            self.expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Initial_constructContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.StatementContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_initial_construct

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterInitial_construct" ):
                listener.enterInitial_construct(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitInitial_construct" ):
                listener.exitInitial_construct(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitInitial_construct" ):
                return visitor.visitInitial_construct(self)
            else:
                return visitor.visitChildren(self)




    def initial_construct(self):

        localctx = Verilog2001Parser.Initial_constructContext(self, self._ctx, self.state)
        self.enterRule(localctx, 266, self.RULE_initial_construct)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2361
            self.match(Verilog2001Parser.T__106)
            self.state = 2362
            self.statement()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Always_constructContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.StatementContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_always_construct

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterAlways_construct" ):
                listener.enterAlways_construct(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitAlways_construct" ):
                listener.exitAlways_construct(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitAlways_construct" ):
                return visitor.visitAlways_construct(self)
            else:
                return visitor.visitChildren(self)




    def always_construct(self):

        localctx = Verilog2001Parser.Always_constructContext(self, self._ctx, self.state)
        self.enterRule(localctx, 268, self.RULE_always_construct)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2364
            self.match(Verilog2001Parser.T__107)
            self.state = 2365
            self.statement()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Blocking_assignmentContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def variable_lvalue(self):
            return self.getTypedRuleContext(Verilog2001Parser.Variable_lvalueContext,0)


        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def delay_or_event_control(self):
            return self.getTypedRuleContext(Verilog2001Parser.Delay_or_event_controlContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_blocking_assignment

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterBlocking_assignment" ):
                listener.enterBlocking_assignment(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitBlocking_assignment" ):
                listener.exitBlocking_assignment(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitBlocking_assignment" ):
                return visitor.visitBlocking_assignment(self)
            else:
                return visitor.visitChildren(self)




    def blocking_assignment(self):

        localctx = Verilog2001Parser.Blocking_assignmentContext(self, self._ctx, self.state)
        self.enterRule(localctx, 270, self.RULE_blocking_assignment)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2367
            self.variable_lvalue()
            self.state = 2368
            self.match(Verilog2001Parser.T__50)
            self.state = 2370
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__14 or _la==Verilog2001Parser.T__114 or _la==Verilog2001Parser.T__116:
                self.state = 2369
                self.delay_or_event_control()


            self.state = 2372
            self.expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Nonblocking_assignmentContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def variable_lvalue(self):
            return self.getTypedRuleContext(Verilog2001Parser.Variable_lvalueContext,0)


        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def delay_or_event_control(self):
            return self.getTypedRuleContext(Verilog2001Parser.Delay_or_event_controlContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_nonblocking_assignment

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterNonblocking_assignment" ):
                listener.enterNonblocking_assignment(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitNonblocking_assignment" ):
                listener.exitNonblocking_assignment(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitNonblocking_assignment" ):
                return visitor.visitNonblocking_assignment(self)
            else:
                return visitor.visitChildren(self)




    def nonblocking_assignment(self):

        localctx = Verilog2001Parser.Nonblocking_assignmentContext(self, self._ctx, self.state)
        self.enterRule(localctx, 272, self.RULE_nonblocking_assignment)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2374
            self.variable_lvalue()
            self.state = 2375
            self.match(Verilog2001Parser.T__108)
            self.state = 2377
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__14 or _la==Verilog2001Parser.T__114 or _la==Verilog2001Parser.T__116:
                self.state = 2376
                self.delay_or_event_control()


            self.state = 2379
            self.expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Procedural_continuous_assignmentsContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def variable_assignment(self):
            return self.getTypedRuleContext(Verilog2001Parser.Variable_assignmentContext,0)


        def variable_lvalue(self):
            return self.getTypedRuleContext(Verilog2001Parser.Variable_lvalueContext,0)


        def net_assignment(self):
            return self.getTypedRuleContext(Verilog2001Parser.Net_assignmentContext,0)


        def net_lvalue(self):
            return self.getTypedRuleContext(Verilog2001Parser.Net_lvalueContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_procedural_continuous_assignments

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterProcedural_continuous_assignments" ):
                listener.enterProcedural_continuous_assignments(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitProcedural_continuous_assignments" ):
                listener.exitProcedural_continuous_assignments(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitProcedural_continuous_assignments" ):
                return visitor.visitProcedural_continuous_assignments(self)
            else:
                return visitor.visitChildren(self)




    def procedural_continuous_assignments(self):

        localctx = Verilog2001Parser.Procedural_continuous_assignmentsContext(self, self._ctx, self.state)
        self.enterRule(localctx, 274, self.RULE_procedural_continuous_assignments)
        try:
            self.state = 2393
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,255,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 2381
                self.match(Verilog2001Parser.T__105)
                self.state = 2382
                self.variable_assignment()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 2383
                self.match(Verilog2001Parser.T__109)
                self.state = 2384
                self.variable_lvalue()
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 2385
                self.match(Verilog2001Parser.T__110)
                self.state = 2386
                self.variable_assignment()
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 2387
                self.match(Verilog2001Parser.T__110)
                self.state = 2388
                self.net_assignment()
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 2389
                self.match(Verilog2001Parser.T__111)
                self.state = 2390
                self.variable_lvalue()
                pass

            elif la_ == 6:
                self.enterOuterAlt(localctx, 6)
                self.state = 2391
                self.match(Verilog2001Parser.T__111)
                self.state = 2392
                self.net_lvalue()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Function_blocking_assignmentContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def variable_lvalue(self):
            return self.getTypedRuleContext(Verilog2001Parser.Variable_lvalueContext,0)


        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_function_blocking_assignment

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterFunction_blocking_assignment" ):
                listener.enterFunction_blocking_assignment(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitFunction_blocking_assignment" ):
                listener.exitFunction_blocking_assignment(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitFunction_blocking_assignment" ):
                return visitor.visitFunction_blocking_assignment(self)
            else:
                return visitor.visitChildren(self)




    def function_blocking_assignment(self):

        localctx = Verilog2001Parser.Function_blocking_assignmentContext(self, self._ctx, self.state)
        self.enterRule(localctx, 276, self.RULE_function_blocking_assignment)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2395
            self.variable_lvalue()
            self.state = 2396
            self.match(Verilog2001Parser.T__50)
            self.state = 2397
            self.expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Function_statement_or_nullContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def function_statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.Function_statementContext,0)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_function_statement_or_null

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterFunction_statement_or_null" ):
                listener.enterFunction_statement_or_null(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitFunction_statement_or_null" ):
                listener.exitFunction_statement_or_null(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitFunction_statement_or_null" ):
                return visitor.visitFunction_statement_or_null(self)
            else:
                return visitor.visitChildren(self)




    def function_statement_or_null(self):

        localctx = Verilog2001Parser.Function_statement_or_nullContext(self, self._ctx, self.state)
        self.enterRule(localctx, 278, self.RULE_function_statement_or_null)
        self._la = 0 # Token type
        try:
            self.state = 2407
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,257,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 2399
                self.function_statement()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 2403
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2400
                    self.attribute_instance()
                    self.state = 2405
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2406
                self.match(Verilog2001Parser.T__1)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Function_seq_blockContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def block_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Block_identifierContext,0)


        def function_statement(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Function_statementContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Function_statementContext,i)


        def block_item_declaration(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Block_item_declarationContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Block_item_declarationContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_function_seq_block

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterFunction_seq_block" ):
                listener.enterFunction_seq_block(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitFunction_seq_block" ):
                listener.exitFunction_seq_block(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitFunction_seq_block" ):
                return visitor.visitFunction_seq_block(self)
            else:
                return visitor.visitChildren(self)




    def function_seq_block(self):

        localctx = Verilog2001Parser.Function_seq_blockContext(self, self._ctx, self.state)
        self.enterRule(localctx, 280, self.RULE_function_seq_block)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2409
            self.match(Verilog2001Parser.T__103)
            self.state = 2418
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__64:
                self.state = 2410
                self.match(Verilog2001Parser.T__64)
                self.state = 2411
                self.block_identifier()
                self.state = 2415
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,258,self._ctx)
                while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                    if _alt==1:
                        self.state = 2412
                        self.block_item_declaration() 
                    self.state = 2417
                    self._errHandler.sync(self)
                    _alt = self._interp.adaptivePredict(self._input,258,self._ctx)



            self.state = 2423
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__15 or _la==Verilog2001Parser.T__18 or ((((_la - 99)) & ~0x3f) == 0 and ((1 << (_la - 99)) & ((1 << (Verilog2001Parser.T__98 - 99)) | (1 << (Verilog2001Parser.T__100 - 99)) | (1 << (Verilog2001Parser.T__102 - 99)) | (1 << (Verilog2001Parser.T__103 - 99)) | (1 << (Verilog2001Parser.T__114 - 99)) | (1 << (Verilog2001Parser.T__115 - 99)) | (1 << (Verilog2001Parser.T__122 - 99)) | (1 << (Verilog2001Parser.T__123 - 99)) | (1 << (Verilog2001Parser.T__124 - 99)) | (1 << (Verilog2001Parser.T__125 - 99)))) != 0) or ((((_la - 175)) & ~0x3f) == 0 and ((1 << (_la - 175)) & ((1 << (Verilog2001Parser.Escaped_identifier - 175)) | (1 << (Verilog2001Parser.Simple_identifier - 175)) | (1 << (Verilog2001Parser.Dollar_Identifier - 175)))) != 0):
                self.state = 2420
                self.function_statement()
                self.state = 2425
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 2426
            self.match(Verilog2001Parser.T__104)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Variable_assignmentContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def variable_lvalue(self):
            return self.getTypedRuleContext(Verilog2001Parser.Variable_lvalueContext,0)


        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_variable_assignment

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterVariable_assignment" ):
                listener.enterVariable_assignment(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitVariable_assignment" ):
                listener.exitVariable_assignment(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitVariable_assignment" ):
                return visitor.visitVariable_assignment(self)
            else:
                return visitor.visitChildren(self)




    def variable_assignment(self):

        localctx = Verilog2001Parser.Variable_assignmentContext(self, self._ctx, self.state)
        self.enterRule(localctx, 282, self.RULE_variable_assignment)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2428
            self.variable_lvalue()
            self.state = 2429
            self.match(Verilog2001Parser.T__50)
            self.state = 2430
            self.expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Par_blockContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def block_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Block_identifierContext,0)


        def statement(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.StatementContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.StatementContext,i)


        def block_item_declaration(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Block_item_declarationContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Block_item_declarationContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_par_block

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPar_block" ):
                listener.enterPar_block(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPar_block" ):
                listener.exitPar_block(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPar_block" ):
                return visitor.visitPar_block(self)
            else:
                return visitor.visitChildren(self)




    def par_block(self):

        localctx = Verilog2001Parser.Par_blockContext(self, self._ctx, self.state)
        self.enterRule(localctx, 284, self.RULE_par_block)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2432
            self.match(Verilog2001Parser.T__112)
            self.state = 2441
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__64:
                self.state = 2433
                self.match(Verilog2001Parser.T__64)
                self.state = 2434
                self.block_identifier()
                self.state = 2438
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,261,self._ctx)
                while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                    if _alt==1:
                        self.state = 2435
                        self.block_item_declaration() 
                    self.state = 2440
                    self._errHandler.sync(self)
                    _alt = self._interp.adaptivePredict(self._input,261,self._ctx)



            self.state = 2446
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__14) | (1 << Verilog2001Parser.T__15) | (1 << Verilog2001Parser.T__18))) != 0) or ((((_la - 99)) & ~0x3f) == 0 and ((1 << (_la - 99)) & ((1 << (Verilog2001Parser.T__98 - 99)) | (1 << (Verilog2001Parser.T__100 - 99)) | (1 << (Verilog2001Parser.T__102 - 99)) | (1 << (Verilog2001Parser.T__103 - 99)) | (1 << (Verilog2001Parser.T__105 - 99)) | (1 << (Verilog2001Parser.T__109 - 99)) | (1 << (Verilog2001Parser.T__110 - 99)) | (1 << (Verilog2001Parser.T__111 - 99)) | (1 << (Verilog2001Parser.T__112 - 99)) | (1 << (Verilog2001Parser.T__114 - 99)) | (1 << (Verilog2001Parser.T__115 - 99)) | (1 << (Verilog2001Parser.T__116 - 99)) | (1 << (Verilog2001Parser.T__118 - 99)) | (1 << (Verilog2001Parser.T__121 - 99)) | (1 << (Verilog2001Parser.T__122 - 99)) | (1 << (Verilog2001Parser.T__123 - 99)) | (1 << (Verilog2001Parser.T__124 - 99)) | (1 << (Verilog2001Parser.T__125 - 99)))) != 0) or ((((_la - 175)) & ~0x3f) == 0 and ((1 << (_la - 175)) & ((1 << (Verilog2001Parser.Escaped_identifier - 175)) | (1 << (Verilog2001Parser.Simple_identifier - 175)) | (1 << (Verilog2001Parser.Dollar_Identifier - 175)))) != 0):
                self.state = 2443
                self.statement()
                self.state = 2448
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 2449
            self.match(Verilog2001Parser.T__113)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Seq_blockContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def block_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Block_identifierContext,0)


        def statement(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.StatementContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.StatementContext,i)


        def block_item_declaration(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Block_item_declarationContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Block_item_declarationContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_seq_block

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterSeq_block" ):
                listener.enterSeq_block(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitSeq_block" ):
                listener.exitSeq_block(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitSeq_block" ):
                return visitor.visitSeq_block(self)
            else:
                return visitor.visitChildren(self)




    def seq_block(self):

        localctx = Verilog2001Parser.Seq_blockContext(self, self._ctx, self.state)
        self.enterRule(localctx, 286, self.RULE_seq_block)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2451
            self.match(Verilog2001Parser.T__103)
            self.state = 2460
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__64:
                self.state = 2452
                self.match(Verilog2001Parser.T__64)
                self.state = 2453
                self.block_identifier()
                self.state = 2457
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,264,self._ctx)
                while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                    if _alt==1:
                        self.state = 2454
                        self.block_item_declaration() 
                    self.state = 2459
                    self._errHandler.sync(self)
                    _alt = self._interp.adaptivePredict(self._input,264,self._ctx)



            self.state = 2465
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__14) | (1 << Verilog2001Parser.T__15) | (1 << Verilog2001Parser.T__18))) != 0) or ((((_la - 99)) & ~0x3f) == 0 and ((1 << (_la - 99)) & ((1 << (Verilog2001Parser.T__98 - 99)) | (1 << (Verilog2001Parser.T__100 - 99)) | (1 << (Verilog2001Parser.T__102 - 99)) | (1 << (Verilog2001Parser.T__103 - 99)) | (1 << (Verilog2001Parser.T__105 - 99)) | (1 << (Verilog2001Parser.T__109 - 99)) | (1 << (Verilog2001Parser.T__110 - 99)) | (1 << (Verilog2001Parser.T__111 - 99)) | (1 << (Verilog2001Parser.T__112 - 99)) | (1 << (Verilog2001Parser.T__114 - 99)) | (1 << (Verilog2001Parser.T__115 - 99)) | (1 << (Verilog2001Parser.T__116 - 99)) | (1 << (Verilog2001Parser.T__118 - 99)) | (1 << (Verilog2001Parser.T__121 - 99)) | (1 << (Verilog2001Parser.T__122 - 99)) | (1 << (Verilog2001Parser.T__123 - 99)) | (1 << (Verilog2001Parser.T__124 - 99)) | (1 << (Verilog2001Parser.T__125 - 99)))) != 0) or ((((_la - 175)) & ~0x3f) == 0 and ((1 << (_la - 175)) & ((1 << (Verilog2001Parser.Escaped_identifier - 175)) | (1 << (Verilog2001Parser.Simple_identifier - 175)) | (1 << (Verilog2001Parser.Dollar_Identifier - 175)))) != 0):
                self.state = 2462
                self.statement()
                self.state = 2467
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 2468
            self.match(Verilog2001Parser.T__104)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class StatementContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def blocking_assignment(self):
            return self.getTypedRuleContext(Verilog2001Parser.Blocking_assignmentContext,0)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def case_statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.Case_statementContext,0)


        def conditional_statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.Conditional_statementContext,0)


        def disable_statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.Disable_statementContext,0)


        def event_trigger(self):
            return self.getTypedRuleContext(Verilog2001Parser.Event_triggerContext,0)


        def loop_statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.Loop_statementContext,0)


        def nonblocking_assignment(self):
            return self.getTypedRuleContext(Verilog2001Parser.Nonblocking_assignmentContext,0)


        def par_block(self):
            return self.getTypedRuleContext(Verilog2001Parser.Par_blockContext,0)


        def procedural_continuous_assignments(self):
            return self.getTypedRuleContext(Verilog2001Parser.Procedural_continuous_assignmentsContext,0)


        def procedural_timing_control_statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.Procedural_timing_control_statementContext,0)


        def seq_block(self):
            return self.getTypedRuleContext(Verilog2001Parser.Seq_blockContext,0)


        def system_task_enable(self):
            return self.getTypedRuleContext(Verilog2001Parser.System_task_enableContext,0)


        def task_enable(self):
            return self.getTypedRuleContext(Verilog2001Parser.Task_enableContext,0)


        def wait_statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.Wait_statementContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_statement

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterStatement" ):
                listener.enterStatement(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitStatement" ):
                listener.exitStatement(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitStatement" ):
                return visitor.visitStatement(self)
            else:
                return visitor.visitChildren(self)




    def statement(self):

        localctx = Verilog2001Parser.StatementContext(self, self._ctx, self.state)
        self.enterRule(localctx, 288, self.RULE_statement)
        self._la = 0 # Token type
        try:
            self.state = 2574
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,281,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 2473
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2470
                    self.attribute_instance()
                    self.state = 2475
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2476
                self.blocking_assignment()
                self.state = 2477
                self.match(Verilog2001Parser.T__1)
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 2482
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2479
                    self.attribute_instance()
                    self.state = 2484
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2485
                self.case_statement()
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 2489
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2486
                    self.attribute_instance()
                    self.state = 2491
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2492
                self.conditional_statement()
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 2496
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2493
                    self.attribute_instance()
                    self.state = 2498
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2499
                self.disable_statement()
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 2503
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2500
                    self.attribute_instance()
                    self.state = 2505
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2506
                self.event_trigger()
                pass

            elif la_ == 6:
                self.enterOuterAlt(localctx, 6)
                self.state = 2510
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2507
                    self.attribute_instance()
                    self.state = 2512
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2513
                self.loop_statement()
                pass

            elif la_ == 7:
                self.enterOuterAlt(localctx, 7)
                self.state = 2517
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2514
                    self.attribute_instance()
                    self.state = 2519
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2520
                self.nonblocking_assignment()
                self.state = 2521
                self.match(Verilog2001Parser.T__1)
                pass

            elif la_ == 8:
                self.enterOuterAlt(localctx, 8)
                self.state = 2526
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2523
                    self.attribute_instance()
                    self.state = 2528
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2529
                self.par_block()
                pass

            elif la_ == 9:
                self.enterOuterAlt(localctx, 9)
                self.state = 2533
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2530
                    self.attribute_instance()
                    self.state = 2535
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2536
                self.procedural_continuous_assignments()
                self.state = 2537
                self.match(Verilog2001Parser.T__1)
                pass

            elif la_ == 10:
                self.enterOuterAlt(localctx, 10)
                self.state = 2542
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2539
                    self.attribute_instance()
                    self.state = 2544
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2545
                self.procedural_timing_control_statement()
                pass

            elif la_ == 11:
                self.enterOuterAlt(localctx, 11)
                self.state = 2549
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2546
                    self.attribute_instance()
                    self.state = 2551
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2552
                self.seq_block()
                pass

            elif la_ == 12:
                self.enterOuterAlt(localctx, 12)
                self.state = 2556
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2553
                    self.attribute_instance()
                    self.state = 2558
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2559
                self.system_task_enable()
                pass

            elif la_ == 13:
                self.enterOuterAlt(localctx, 13)
                self.state = 2563
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2560
                    self.attribute_instance()
                    self.state = 2565
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2566
                self.task_enable()
                pass

            elif la_ == 14:
                self.enterOuterAlt(localctx, 14)
                self.state = 2570
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2567
                    self.attribute_instance()
                    self.state = 2572
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2573
                self.wait_statement()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Statement_or_nullContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.StatementContext,0)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_statement_or_null

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterStatement_or_null" ):
                listener.enterStatement_or_null(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitStatement_or_null" ):
                listener.exitStatement_or_null(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitStatement_or_null" ):
                return visitor.visitStatement_or_null(self)
            else:
                return visitor.visitChildren(self)




    def statement_or_null(self):

        localctx = Verilog2001Parser.Statement_or_nullContext(self, self._ctx, self.state)
        self.enterRule(localctx, 290, self.RULE_statement_or_null)
        self._la = 0 # Token type
        try:
            self.state = 2584
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,283,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 2576
                self.statement()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 2580
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2577
                    self.attribute_instance()
                    self.state = 2582
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2583
                self.match(Verilog2001Parser.T__1)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Function_statementContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def function_blocking_assignment(self):
            return self.getTypedRuleContext(Verilog2001Parser.Function_blocking_assignmentContext,0)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def function_case_statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.Function_case_statementContext,0)


        def function_conditional_statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.Function_conditional_statementContext,0)


        def function_loop_statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.Function_loop_statementContext,0)


        def function_seq_block(self):
            return self.getTypedRuleContext(Verilog2001Parser.Function_seq_blockContext,0)


        def disable_statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.Disable_statementContext,0)


        def system_task_enable(self):
            return self.getTypedRuleContext(Verilog2001Parser.System_task_enableContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_function_statement

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterFunction_statement" ):
                listener.enterFunction_statement(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitFunction_statement" ):
                listener.exitFunction_statement(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitFunction_statement" ):
                return visitor.visitFunction_statement(self)
            else:
                return visitor.visitChildren(self)




    def function_statement(self):

        localctx = Verilog2001Parser.Function_statementContext(self, self._ctx, self.state)
        self.enterRule(localctx, 292, self.RULE_function_statement)
        self._la = 0 # Token type
        try:
            self.state = 2637
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,291,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 2589
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2586
                    self.attribute_instance()
                    self.state = 2591
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2592
                self.function_blocking_assignment()
                self.state = 2593
                self.match(Verilog2001Parser.T__1)
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 2598
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2595
                    self.attribute_instance()
                    self.state = 2600
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2601
                self.function_case_statement()
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 2605
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2602
                    self.attribute_instance()
                    self.state = 2607
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2608
                self.function_conditional_statement()
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 2612
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2609
                    self.attribute_instance()
                    self.state = 2614
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2615
                self.function_loop_statement()
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 2619
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2616
                    self.attribute_instance()
                    self.state = 2621
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2622
                self.function_seq_block()
                pass

            elif la_ == 6:
                self.enterOuterAlt(localctx, 6)
                self.state = 2626
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2623
                    self.attribute_instance()
                    self.state = 2628
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2629
                self.disable_statement()
                pass

            elif la_ == 7:
                self.enterOuterAlt(localctx, 7)
                self.state = 2633
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__15:
                    self.state = 2630
                    self.attribute_instance()
                    self.state = 2635
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2636
                self.system_task_enable()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Delay_or_event_controlContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def delay_control(self):
            return self.getTypedRuleContext(Verilog2001Parser.Delay_controlContext,0)


        def event_control(self):
            return self.getTypedRuleContext(Verilog2001Parser.Event_controlContext,0)


        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_delay_or_event_control

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterDelay_or_event_control" ):
                listener.enterDelay_or_event_control(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitDelay_or_event_control" ):
                listener.exitDelay_or_event_control(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitDelay_or_event_control" ):
                return visitor.visitDelay_or_event_control(self)
            else:
                return visitor.visitChildren(self)




    def delay_or_event_control(self):

        localctx = Verilog2001Parser.Delay_or_event_controlContext(self, self._ctx, self.state)
        self.enterRule(localctx, 294, self.RULE_delay_or_event_control)
        try:
            self.state = 2647
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__14]:
                self.enterOuterAlt(localctx, 1)
                self.state = 2639
                self.delay_control()
                pass
            elif token in [Verilog2001Parser.T__116]:
                self.enterOuterAlt(localctx, 2)
                self.state = 2640
                self.event_control()
                pass
            elif token in [Verilog2001Parser.T__114]:
                self.enterOuterAlt(localctx, 3)
                self.state = 2641
                self.match(Verilog2001Parser.T__114)
                self.state = 2642
                self.match(Verilog2001Parser.T__15)
                self.state = 2643
                self.expression()
                self.state = 2644
                self.match(Verilog2001Parser.T__17)
                self.state = 2645
                self.event_control()
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Delay_controlContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def delay_value(self):
            return self.getTypedRuleContext(Verilog2001Parser.Delay_valueContext,0)


        def mintypmax_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Mintypmax_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_delay_control

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterDelay_control" ):
                listener.enterDelay_control(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitDelay_control" ):
                listener.exitDelay_control(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitDelay_control" ):
                return visitor.visitDelay_control(self)
            else:
                return visitor.visitChildren(self)




    def delay_control(self):

        localctx = Verilog2001Parser.Delay_controlContext(self, self._ctx, self.state)
        self.enterRule(localctx, 296, self.RULE_delay_control)
        try:
            self.state = 2656
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,293,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 2649
                self.match(Verilog2001Parser.T__14)
                self.state = 2650
                self.delay_value()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 2651
                self.match(Verilog2001Parser.T__14)
                self.state = 2652
                self.match(Verilog2001Parser.T__15)
                self.state = 2653
                self.mintypmax_expression()
                self.state = 2654
                self.match(Verilog2001Parser.T__17)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Disable_statementContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def hierarchical_task_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Hierarchical_task_identifierContext,0)


        def hierarchical_block_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Hierarchical_block_identifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_disable_statement

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterDisable_statement" ):
                listener.enterDisable_statement(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitDisable_statement" ):
                listener.exitDisable_statement(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitDisable_statement" ):
                return visitor.visitDisable_statement(self)
            else:
                return visitor.visitChildren(self)




    def disable_statement(self):

        localctx = Verilog2001Parser.Disable_statementContext(self, self._ctx, self.state)
        self.enterRule(localctx, 298, self.RULE_disable_statement)
        try:
            self.state = 2666
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,294,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 2658
                self.match(Verilog2001Parser.T__115)
                self.state = 2659
                self.hierarchical_task_identifier()
                self.state = 2660
                self.match(Verilog2001Parser.T__1)
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 2662
                self.match(Verilog2001Parser.T__115)
                self.state = 2663
                self.hierarchical_block_identifier()
                self.state = 2664
                self.match(Verilog2001Parser.T__1)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Event_controlContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def event_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Event_identifierContext,0)


        def event_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Event_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_event_control

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterEvent_control" ):
                listener.enterEvent_control(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitEvent_control" ):
                listener.exitEvent_control(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitEvent_control" ):
                return visitor.visitEvent_control(self)
            else:
                return visitor.visitChildren(self)




    def event_control(self):

        localctx = Verilog2001Parser.Event_controlContext(self, self._ctx, self.state)
        self.enterRule(localctx, 300, self.RULE_event_control)
        try:
            self.state = 2681
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,295,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 2668
                self.match(Verilog2001Parser.T__116)
                self.state = 2669
                self.event_identifier()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 2670
                self.match(Verilog2001Parser.T__116)
                self.state = 2671
                self.match(Verilog2001Parser.T__15)
                self.state = 2672
                self.event_expression()
                self.state = 2673
                self.match(Verilog2001Parser.T__17)
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 2675
                self.match(Verilog2001Parser.T__116)
                self.state = 2676
                self.match(Verilog2001Parser.T__117)
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 2677
                self.match(Verilog2001Parser.T__116)
                self.state = 2678
                self.match(Verilog2001Parser.T__15)
                self.state = 2679
                self.match(Verilog2001Parser.T__117)
                self.state = 2680
                self.match(Verilog2001Parser.T__17)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Event_triggerContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def hierarchical_event_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Hierarchical_event_identifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_event_trigger

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterEvent_trigger" ):
                listener.enterEvent_trigger(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitEvent_trigger" ):
                listener.exitEvent_trigger(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitEvent_trigger" ):
                return visitor.visitEvent_trigger(self)
            else:
                return visitor.visitChildren(self)




    def event_trigger(self):

        localctx = Verilog2001Parser.Event_triggerContext(self, self._ctx, self.state)
        self.enterRule(localctx, 302, self.RULE_event_trigger)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2683
            self.match(Verilog2001Parser.T__118)
            self.state = 2684
            self.hierarchical_event_identifier()
            self.state = 2685
            self.match(Verilog2001Parser.T__1)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Event_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def event_primary(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Event_primaryContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Event_primaryContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_event_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterEvent_expression" ):
                listener.enterEvent_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitEvent_expression" ):
                listener.exitEvent_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitEvent_expression" ):
                return visitor.visitEvent_expression(self)
            else:
                return visitor.visitChildren(self)




    def event_expression(self):

        localctx = Verilog2001Parser.Event_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 304, self.RULE_event_expression)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2687
            self.event_primary()
            self.state = 2694
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16 or _la==Verilog2001Parser.T__84:
                self.state = 2692
                self._errHandler.sync(self)
                token = self._input.LA(1)
                if token in [Verilog2001Parser.T__84]:
                    self.state = 2688
                    self.match(Verilog2001Parser.T__84)
                    self.state = 2689
                    self.event_primary()
                    pass
                elif token in [Verilog2001Parser.T__16]:
                    self.state = 2690
                    self.match(Verilog2001Parser.T__16)
                    self.state = 2691
                    self.event_primary()
                    pass
                else:
                    raise NoViableAltException(self)

                self.state = 2696
                self._errHandler.sync(self)
                _la = self._input.LA(1)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Event_primaryContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_event_primary

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterEvent_primary" ):
                listener.enterEvent_primary(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitEvent_primary" ):
                listener.exitEvent_primary(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitEvent_primary" ):
                return visitor.visitEvent_primary(self)
            else:
                return visitor.visitChildren(self)




    def event_primary(self):

        localctx = Verilog2001Parser.Event_primaryContext(self, self._ctx, self.state)
        self.enterRule(localctx, 306, self.RULE_event_primary)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2702
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__15, Verilog2001Parser.T__18, Verilog2001Parser.T__135, Verilog2001Parser.T__136, Verilog2001Parser.T__140, Verilog2001Parser.T__141, Verilog2001Parser.T__142, Verilog2001Parser.T__143, Verilog2001Parser.T__144, Verilog2001Parser.T__145, Verilog2001Parser.T__146, Verilog2001Parser.T__147, Verilog2001Parser.T__148, Verilog2001Parser.Real_number, Verilog2001Parser.Decimal_number, Verilog2001Parser.Binary_number, Verilog2001Parser.Octal_number, Verilog2001Parser.Hex_number, Verilog2001Parser.String, Verilog2001Parser.Escaped_identifier, Verilog2001Parser.Simple_identifier, Verilog2001Parser.Dollar_Identifier]:
                self.state = 2697
                self.expression()
                pass
            elif token in [Verilog2001Parser.T__119]:
                self.state = 2698
                self.match(Verilog2001Parser.T__119)
                self.state = 2699
                self.expression()
                pass
            elif token in [Verilog2001Parser.T__120]:
                self.state = 2700
                self.match(Verilog2001Parser.T__120)
                self.state = 2701
                self.expression()
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Procedural_timing_control_statementContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def delay_or_event_control(self):
            return self.getTypedRuleContext(Verilog2001Parser.Delay_or_event_controlContext,0)


        def statement_or_null(self):
            return self.getTypedRuleContext(Verilog2001Parser.Statement_or_nullContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_procedural_timing_control_statement

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterProcedural_timing_control_statement" ):
                listener.enterProcedural_timing_control_statement(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitProcedural_timing_control_statement" ):
                listener.exitProcedural_timing_control_statement(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitProcedural_timing_control_statement" ):
                return visitor.visitProcedural_timing_control_statement(self)
            else:
                return visitor.visitChildren(self)




    def procedural_timing_control_statement(self):

        localctx = Verilog2001Parser.Procedural_timing_control_statementContext(self, self._ctx, self.state)
        self.enterRule(localctx, 308, self.RULE_procedural_timing_control_statement)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2704
            self.delay_or_event_control()
            self.state = 2705
            self.statement_or_null()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Wait_statementContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def statement_or_null(self):
            return self.getTypedRuleContext(Verilog2001Parser.Statement_or_nullContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_wait_statement

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterWait_statement" ):
                listener.enterWait_statement(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitWait_statement" ):
                listener.exitWait_statement(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitWait_statement" ):
                return visitor.visitWait_statement(self)
            else:
                return visitor.visitChildren(self)




    def wait_statement(self):

        localctx = Verilog2001Parser.Wait_statementContext(self, self._ctx, self.state)
        self.enterRule(localctx, 310, self.RULE_wait_statement)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2707
            self.match(Verilog2001Parser.T__121)
            self.state = 2708
            self.match(Verilog2001Parser.T__15)
            self.state = 2709
            self.expression()
            self.state = 2710
            self.match(Verilog2001Parser.T__17)
            self.state = 2711
            self.statement_or_null()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Conditional_statementContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def statement_or_null(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Statement_or_nullContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Statement_or_nullContext,i)


        def if_else_if_statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.If_else_if_statementContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_conditional_statement

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterConditional_statement" ):
                listener.enterConditional_statement(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitConditional_statement" ):
                listener.exitConditional_statement(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitConditional_statement" ):
                return visitor.visitConditional_statement(self)
            else:
                return visitor.visitChildren(self)




    def conditional_statement(self):

        localctx = Verilog2001Parser.Conditional_statementContext(self, self._ctx, self.state)
        self.enterRule(localctx, 312, self.RULE_conditional_statement)
        try:
            self.state = 2723
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,300,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 2713
                self.match(Verilog2001Parser.T__98)
                self.state = 2714
                self.match(Verilog2001Parser.T__15)
                self.state = 2715
                self.expression()
                self.state = 2716
                self.match(Verilog2001Parser.T__17)
                self.state = 2717
                self.statement_or_null()
                self.state = 2720
                self._errHandler.sync(self)
                la_ = self._interp.adaptivePredict(self._input,299,self._ctx)
                if la_ == 1:
                    self.state = 2718
                    self.match(Verilog2001Parser.T__99)
                    self.state = 2719
                    self.statement_or_null()


                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 2722
                self.if_else_if_statement()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class If_else_if_statementContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.ExpressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,i)


        def statement_or_null(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Statement_or_nullContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Statement_or_nullContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_if_else_if_statement

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterIf_else_if_statement" ):
                listener.enterIf_else_if_statement(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitIf_else_if_statement" ):
                listener.exitIf_else_if_statement(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitIf_else_if_statement" ):
                return visitor.visitIf_else_if_statement(self)
            else:
                return visitor.visitChildren(self)




    def if_else_if_statement(self):

        localctx = Verilog2001Parser.If_else_if_statementContext(self, self._ctx, self.state)
        self.enterRule(localctx, 314, self.RULE_if_else_if_statement)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2725
            self.match(Verilog2001Parser.T__98)
            self.state = 2726
            self.match(Verilog2001Parser.T__15)
            self.state = 2727
            self.expression()
            self.state = 2728
            self.match(Verilog2001Parser.T__17)
            self.state = 2729
            self.statement_or_null()
            self.state = 2739
            self._errHandler.sync(self)
            _alt = self._interp.adaptivePredict(self._input,301,self._ctx)
            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                if _alt==1:
                    self.state = 2730
                    self.match(Verilog2001Parser.T__99)
                    self.state = 2731
                    self.match(Verilog2001Parser.T__98)
                    self.state = 2732
                    self.match(Verilog2001Parser.T__15)
                    self.state = 2733
                    self.expression()
                    self.state = 2734
                    self.match(Verilog2001Parser.T__17)
                    self.state = 2735
                    self.statement_or_null() 
                self.state = 2741
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,301,self._ctx)

            self.state = 2744
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,302,self._ctx)
            if la_ == 1:
                self.state = 2742
                self.match(Verilog2001Parser.T__99)
                self.state = 2743
                self.statement_or_null()


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Function_conditional_statementContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def function_statement_or_null(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Function_statement_or_nullContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Function_statement_or_nullContext,i)


        def function_if_else_if_statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.Function_if_else_if_statementContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_function_conditional_statement

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterFunction_conditional_statement" ):
                listener.enterFunction_conditional_statement(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitFunction_conditional_statement" ):
                listener.exitFunction_conditional_statement(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitFunction_conditional_statement" ):
                return visitor.visitFunction_conditional_statement(self)
            else:
                return visitor.visitChildren(self)




    def function_conditional_statement(self):

        localctx = Verilog2001Parser.Function_conditional_statementContext(self, self._ctx, self.state)
        self.enterRule(localctx, 316, self.RULE_function_conditional_statement)
        try:
            self.state = 2756
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,304,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 2746
                self.match(Verilog2001Parser.T__98)
                self.state = 2747
                self.match(Verilog2001Parser.T__15)
                self.state = 2748
                self.expression()
                self.state = 2749
                self.match(Verilog2001Parser.T__17)
                self.state = 2750
                self.function_statement_or_null()
                self.state = 2753
                self._errHandler.sync(self)
                la_ = self._interp.adaptivePredict(self._input,303,self._ctx)
                if la_ == 1:
                    self.state = 2751
                    self.match(Verilog2001Parser.T__99)
                    self.state = 2752
                    self.function_statement_or_null()


                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 2755
                self.function_if_else_if_statement()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Function_if_else_if_statementContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.ExpressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,i)


        def function_statement_or_null(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Function_statement_or_nullContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Function_statement_or_nullContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_function_if_else_if_statement

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterFunction_if_else_if_statement" ):
                listener.enterFunction_if_else_if_statement(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitFunction_if_else_if_statement" ):
                listener.exitFunction_if_else_if_statement(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitFunction_if_else_if_statement" ):
                return visitor.visitFunction_if_else_if_statement(self)
            else:
                return visitor.visitChildren(self)




    def function_if_else_if_statement(self):

        localctx = Verilog2001Parser.Function_if_else_if_statementContext(self, self._ctx, self.state)
        self.enterRule(localctx, 318, self.RULE_function_if_else_if_statement)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2758
            self.match(Verilog2001Parser.T__98)
            self.state = 2759
            self.match(Verilog2001Parser.T__15)
            self.state = 2760
            self.expression()
            self.state = 2761
            self.match(Verilog2001Parser.T__17)
            self.state = 2762
            self.function_statement_or_null()
            self.state = 2772
            self._errHandler.sync(self)
            _alt = self._interp.adaptivePredict(self._input,305,self._ctx)
            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                if _alt==1:
                    self.state = 2763
                    self.match(Verilog2001Parser.T__99)
                    self.state = 2764
                    self.match(Verilog2001Parser.T__98)
                    self.state = 2765
                    self.match(Verilog2001Parser.T__15)
                    self.state = 2766
                    self.expression()
                    self.state = 2767
                    self.match(Verilog2001Parser.T__17)
                    self.state = 2768
                    self.function_statement_or_null() 
                self.state = 2774
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,305,self._ctx)

            self.state = 2777
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,306,self._ctx)
            if la_ == 1:
                self.state = 2775
                self.match(Verilog2001Parser.T__99)
                self.state = 2776
                self.function_statement_or_null()


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Case_statementContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def case_item(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Case_itemContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Case_itemContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_case_statement

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterCase_statement" ):
                listener.enterCase_statement(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitCase_statement" ):
                listener.exitCase_statement(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitCase_statement" ):
                return visitor.visitCase_statement(self)
            else:
                return visitor.visitChildren(self)




    def case_statement(self):

        localctx = Verilog2001Parser.Case_statementContext(self, self._ctx, self.state)
        self.enterRule(localctx, 320, self.RULE_case_statement)
        self._la = 0 # Token type
        try:
            self.state = 2818
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__100]:
                self.enterOuterAlt(localctx, 1)
                self.state = 2779
                self.match(Verilog2001Parser.T__100)
                self.state = 2780
                self.match(Verilog2001Parser.T__15)
                self.state = 2781
                self.expression()
                self.state = 2782
                self.match(Verilog2001Parser.T__17)
                self.state = 2783
                self.case_item()
                self.state = 2787
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__5) | (1 << Verilog2001Parser.T__15) | (1 << Verilog2001Parser.T__18))) != 0) or ((((_la - 136)) & ~0x3f) == 0 and ((1 << (_la - 136)) & ((1 << (Verilog2001Parser.T__135 - 136)) | (1 << (Verilog2001Parser.T__136 - 136)) | (1 << (Verilog2001Parser.T__140 - 136)) | (1 << (Verilog2001Parser.T__141 - 136)) | (1 << (Verilog2001Parser.T__142 - 136)) | (1 << (Verilog2001Parser.T__143 - 136)) | (1 << (Verilog2001Parser.T__144 - 136)) | (1 << (Verilog2001Parser.T__145 - 136)) | (1 << (Verilog2001Parser.T__146 - 136)) | (1 << (Verilog2001Parser.T__147 - 136)) | (1 << (Verilog2001Parser.T__148 - 136)) | (1 << (Verilog2001Parser.Real_number - 136)) | (1 << (Verilog2001Parser.Decimal_number - 136)) | (1 << (Verilog2001Parser.Binary_number - 136)) | (1 << (Verilog2001Parser.Octal_number - 136)) | (1 << (Verilog2001Parser.Hex_number - 136)) | (1 << (Verilog2001Parser.String - 136)) | (1 << (Verilog2001Parser.Escaped_identifier - 136)) | (1 << (Verilog2001Parser.Simple_identifier - 136)) | (1 << (Verilog2001Parser.Dollar_Identifier - 136)))) != 0):
                    self.state = 2784
                    self.case_item()
                    self.state = 2789
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2790
                self.match(Verilog2001Parser.T__101)
                pass
            elif token in [Verilog2001Parser.T__122]:
                self.enterOuterAlt(localctx, 2)
                self.state = 2792
                self.match(Verilog2001Parser.T__122)
                self.state = 2793
                self.match(Verilog2001Parser.T__15)
                self.state = 2794
                self.expression()
                self.state = 2795
                self.match(Verilog2001Parser.T__17)
                self.state = 2796
                self.case_item()
                self.state = 2800
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__5) | (1 << Verilog2001Parser.T__15) | (1 << Verilog2001Parser.T__18))) != 0) or ((((_la - 136)) & ~0x3f) == 0 and ((1 << (_la - 136)) & ((1 << (Verilog2001Parser.T__135 - 136)) | (1 << (Verilog2001Parser.T__136 - 136)) | (1 << (Verilog2001Parser.T__140 - 136)) | (1 << (Verilog2001Parser.T__141 - 136)) | (1 << (Verilog2001Parser.T__142 - 136)) | (1 << (Verilog2001Parser.T__143 - 136)) | (1 << (Verilog2001Parser.T__144 - 136)) | (1 << (Verilog2001Parser.T__145 - 136)) | (1 << (Verilog2001Parser.T__146 - 136)) | (1 << (Verilog2001Parser.T__147 - 136)) | (1 << (Verilog2001Parser.T__148 - 136)) | (1 << (Verilog2001Parser.Real_number - 136)) | (1 << (Verilog2001Parser.Decimal_number - 136)) | (1 << (Verilog2001Parser.Binary_number - 136)) | (1 << (Verilog2001Parser.Octal_number - 136)) | (1 << (Verilog2001Parser.Hex_number - 136)) | (1 << (Verilog2001Parser.String - 136)) | (1 << (Verilog2001Parser.Escaped_identifier - 136)) | (1 << (Verilog2001Parser.Simple_identifier - 136)) | (1 << (Verilog2001Parser.Dollar_Identifier - 136)))) != 0):
                    self.state = 2797
                    self.case_item()
                    self.state = 2802
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2803
                self.match(Verilog2001Parser.T__101)
                pass
            elif token in [Verilog2001Parser.T__123]:
                self.enterOuterAlt(localctx, 3)
                self.state = 2805
                self.match(Verilog2001Parser.T__123)
                self.state = 2806
                self.match(Verilog2001Parser.T__15)
                self.state = 2807
                self.expression()
                self.state = 2808
                self.match(Verilog2001Parser.T__17)
                self.state = 2809
                self.case_item()
                self.state = 2813
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__5) | (1 << Verilog2001Parser.T__15) | (1 << Verilog2001Parser.T__18))) != 0) or ((((_la - 136)) & ~0x3f) == 0 and ((1 << (_la - 136)) & ((1 << (Verilog2001Parser.T__135 - 136)) | (1 << (Verilog2001Parser.T__136 - 136)) | (1 << (Verilog2001Parser.T__140 - 136)) | (1 << (Verilog2001Parser.T__141 - 136)) | (1 << (Verilog2001Parser.T__142 - 136)) | (1 << (Verilog2001Parser.T__143 - 136)) | (1 << (Verilog2001Parser.T__144 - 136)) | (1 << (Verilog2001Parser.T__145 - 136)) | (1 << (Verilog2001Parser.T__146 - 136)) | (1 << (Verilog2001Parser.T__147 - 136)) | (1 << (Verilog2001Parser.T__148 - 136)) | (1 << (Verilog2001Parser.Real_number - 136)) | (1 << (Verilog2001Parser.Decimal_number - 136)) | (1 << (Verilog2001Parser.Binary_number - 136)) | (1 << (Verilog2001Parser.Octal_number - 136)) | (1 << (Verilog2001Parser.Hex_number - 136)) | (1 << (Verilog2001Parser.String - 136)) | (1 << (Verilog2001Parser.Escaped_identifier - 136)) | (1 << (Verilog2001Parser.Simple_identifier - 136)) | (1 << (Verilog2001Parser.Dollar_Identifier - 136)))) != 0):
                    self.state = 2810
                    self.case_item()
                    self.state = 2815
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2816
                self.match(Verilog2001Parser.T__101)
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Case_itemContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.ExpressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,i)


        def statement_or_null(self):
            return self.getTypedRuleContext(Verilog2001Parser.Statement_or_nullContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_case_item

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterCase_item" ):
                listener.enterCase_item(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitCase_item" ):
                listener.exitCase_item(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitCase_item" ):
                return visitor.visitCase_item(self)
            else:
                return visitor.visitChildren(self)




    def case_item(self):

        localctx = Verilog2001Parser.Case_itemContext(self, self._ctx, self.state)
        self.enterRule(localctx, 322, self.RULE_case_item)
        self._la = 0 # Token type
        try:
            self.state = 2836
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__15, Verilog2001Parser.T__18, Verilog2001Parser.T__135, Verilog2001Parser.T__136, Verilog2001Parser.T__140, Verilog2001Parser.T__141, Verilog2001Parser.T__142, Verilog2001Parser.T__143, Verilog2001Parser.T__144, Verilog2001Parser.T__145, Verilog2001Parser.T__146, Verilog2001Parser.T__147, Verilog2001Parser.T__148, Verilog2001Parser.Real_number, Verilog2001Parser.Decimal_number, Verilog2001Parser.Binary_number, Verilog2001Parser.Octal_number, Verilog2001Parser.Hex_number, Verilog2001Parser.String, Verilog2001Parser.Escaped_identifier, Verilog2001Parser.Simple_identifier, Verilog2001Parser.Dollar_Identifier]:
                self.enterOuterAlt(localctx, 1)
                self.state = 2820
                self.expression()
                self.state = 2825
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 2821
                    self.match(Verilog2001Parser.T__16)
                    self.state = 2822
                    self.expression()
                    self.state = 2827
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2828
                self.match(Verilog2001Parser.T__64)
                self.state = 2829
                self.statement_or_null()
                pass
            elif token in [Verilog2001Parser.T__5]:
                self.enterOuterAlt(localctx, 2)
                self.state = 2831
                self.match(Verilog2001Parser.T__5)
                self.state = 2833
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__64:
                    self.state = 2832
                    self.match(Verilog2001Parser.T__64)


                self.state = 2835
                self.statement_or_null()
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Function_case_statementContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def function_case_item(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Function_case_itemContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Function_case_itemContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_function_case_statement

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterFunction_case_statement" ):
                listener.enterFunction_case_statement(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitFunction_case_statement" ):
                listener.exitFunction_case_statement(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitFunction_case_statement" ):
                return visitor.visitFunction_case_statement(self)
            else:
                return visitor.visitChildren(self)




    def function_case_statement(self):

        localctx = Verilog2001Parser.Function_case_statementContext(self, self._ctx, self.state)
        self.enterRule(localctx, 324, self.RULE_function_case_statement)
        self._la = 0 # Token type
        try:
            self.state = 2877
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__100]:
                self.enterOuterAlt(localctx, 1)
                self.state = 2838
                self.match(Verilog2001Parser.T__100)
                self.state = 2839
                self.match(Verilog2001Parser.T__15)
                self.state = 2840
                self.expression()
                self.state = 2841
                self.match(Verilog2001Parser.T__17)
                self.state = 2842
                self.function_case_item()
                self.state = 2846
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__5) | (1 << Verilog2001Parser.T__15) | (1 << Verilog2001Parser.T__18))) != 0) or ((((_la - 136)) & ~0x3f) == 0 and ((1 << (_la - 136)) & ((1 << (Verilog2001Parser.T__135 - 136)) | (1 << (Verilog2001Parser.T__136 - 136)) | (1 << (Verilog2001Parser.T__140 - 136)) | (1 << (Verilog2001Parser.T__141 - 136)) | (1 << (Verilog2001Parser.T__142 - 136)) | (1 << (Verilog2001Parser.T__143 - 136)) | (1 << (Verilog2001Parser.T__144 - 136)) | (1 << (Verilog2001Parser.T__145 - 136)) | (1 << (Verilog2001Parser.T__146 - 136)) | (1 << (Verilog2001Parser.T__147 - 136)) | (1 << (Verilog2001Parser.T__148 - 136)) | (1 << (Verilog2001Parser.Real_number - 136)) | (1 << (Verilog2001Parser.Decimal_number - 136)) | (1 << (Verilog2001Parser.Binary_number - 136)) | (1 << (Verilog2001Parser.Octal_number - 136)) | (1 << (Verilog2001Parser.Hex_number - 136)) | (1 << (Verilog2001Parser.String - 136)) | (1 << (Verilog2001Parser.Escaped_identifier - 136)) | (1 << (Verilog2001Parser.Simple_identifier - 136)) | (1 << (Verilog2001Parser.Dollar_Identifier - 136)))) != 0):
                    self.state = 2843
                    self.function_case_item()
                    self.state = 2848
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2849
                self.match(Verilog2001Parser.T__101)
                pass
            elif token in [Verilog2001Parser.T__122]:
                self.enterOuterAlt(localctx, 2)
                self.state = 2851
                self.match(Verilog2001Parser.T__122)
                self.state = 2852
                self.match(Verilog2001Parser.T__15)
                self.state = 2853
                self.expression()
                self.state = 2854
                self.match(Verilog2001Parser.T__17)
                self.state = 2855
                self.function_case_item()
                self.state = 2859
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__5) | (1 << Verilog2001Parser.T__15) | (1 << Verilog2001Parser.T__18))) != 0) or ((((_la - 136)) & ~0x3f) == 0 and ((1 << (_la - 136)) & ((1 << (Verilog2001Parser.T__135 - 136)) | (1 << (Verilog2001Parser.T__136 - 136)) | (1 << (Verilog2001Parser.T__140 - 136)) | (1 << (Verilog2001Parser.T__141 - 136)) | (1 << (Verilog2001Parser.T__142 - 136)) | (1 << (Verilog2001Parser.T__143 - 136)) | (1 << (Verilog2001Parser.T__144 - 136)) | (1 << (Verilog2001Parser.T__145 - 136)) | (1 << (Verilog2001Parser.T__146 - 136)) | (1 << (Verilog2001Parser.T__147 - 136)) | (1 << (Verilog2001Parser.T__148 - 136)) | (1 << (Verilog2001Parser.Real_number - 136)) | (1 << (Verilog2001Parser.Decimal_number - 136)) | (1 << (Verilog2001Parser.Binary_number - 136)) | (1 << (Verilog2001Parser.Octal_number - 136)) | (1 << (Verilog2001Parser.Hex_number - 136)) | (1 << (Verilog2001Parser.String - 136)) | (1 << (Verilog2001Parser.Escaped_identifier - 136)) | (1 << (Verilog2001Parser.Simple_identifier - 136)) | (1 << (Verilog2001Parser.Dollar_Identifier - 136)))) != 0):
                    self.state = 2856
                    self.function_case_item()
                    self.state = 2861
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2862
                self.match(Verilog2001Parser.T__101)
                pass
            elif token in [Verilog2001Parser.T__123]:
                self.enterOuterAlt(localctx, 3)
                self.state = 2864
                self.match(Verilog2001Parser.T__123)
                self.state = 2865
                self.match(Verilog2001Parser.T__15)
                self.state = 2866
                self.expression()
                self.state = 2867
                self.match(Verilog2001Parser.T__17)
                self.state = 2868
                self.function_case_item()
                self.state = 2872
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << Verilog2001Parser.T__5) | (1 << Verilog2001Parser.T__15) | (1 << Verilog2001Parser.T__18))) != 0) or ((((_la - 136)) & ~0x3f) == 0 and ((1 << (_la - 136)) & ((1 << (Verilog2001Parser.T__135 - 136)) | (1 << (Verilog2001Parser.T__136 - 136)) | (1 << (Verilog2001Parser.T__140 - 136)) | (1 << (Verilog2001Parser.T__141 - 136)) | (1 << (Verilog2001Parser.T__142 - 136)) | (1 << (Verilog2001Parser.T__143 - 136)) | (1 << (Verilog2001Parser.T__144 - 136)) | (1 << (Verilog2001Parser.T__145 - 136)) | (1 << (Verilog2001Parser.T__146 - 136)) | (1 << (Verilog2001Parser.T__147 - 136)) | (1 << (Verilog2001Parser.T__148 - 136)) | (1 << (Verilog2001Parser.Real_number - 136)) | (1 << (Verilog2001Parser.Decimal_number - 136)) | (1 << (Verilog2001Parser.Binary_number - 136)) | (1 << (Verilog2001Parser.Octal_number - 136)) | (1 << (Verilog2001Parser.Hex_number - 136)) | (1 << (Verilog2001Parser.String - 136)) | (1 << (Verilog2001Parser.Escaped_identifier - 136)) | (1 << (Verilog2001Parser.Simple_identifier - 136)) | (1 << (Verilog2001Parser.Dollar_Identifier - 136)))) != 0):
                    self.state = 2869
                    self.function_case_item()
                    self.state = 2874
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2875
                self.match(Verilog2001Parser.T__101)
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Function_case_itemContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.ExpressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,i)


        def function_statement_or_null(self):
            return self.getTypedRuleContext(Verilog2001Parser.Function_statement_or_nullContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_function_case_item

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterFunction_case_item" ):
                listener.enterFunction_case_item(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitFunction_case_item" ):
                listener.exitFunction_case_item(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitFunction_case_item" ):
                return visitor.visitFunction_case_item(self)
            else:
                return visitor.visitChildren(self)




    def function_case_item(self):

        localctx = Verilog2001Parser.Function_case_itemContext(self, self._ctx, self.state)
        self.enterRule(localctx, 326, self.RULE_function_case_item)
        self._la = 0 # Token type
        try:
            self.state = 2895
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__15, Verilog2001Parser.T__18, Verilog2001Parser.T__135, Verilog2001Parser.T__136, Verilog2001Parser.T__140, Verilog2001Parser.T__141, Verilog2001Parser.T__142, Verilog2001Parser.T__143, Verilog2001Parser.T__144, Verilog2001Parser.T__145, Verilog2001Parser.T__146, Verilog2001Parser.T__147, Verilog2001Parser.T__148, Verilog2001Parser.Real_number, Verilog2001Parser.Decimal_number, Verilog2001Parser.Binary_number, Verilog2001Parser.Octal_number, Verilog2001Parser.Hex_number, Verilog2001Parser.String, Verilog2001Parser.Escaped_identifier, Verilog2001Parser.Simple_identifier, Verilog2001Parser.Dollar_Identifier]:
                self.enterOuterAlt(localctx, 1)
                self.state = 2879
                self.expression()
                self.state = 2884
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 2880
                    self.match(Verilog2001Parser.T__16)
                    self.state = 2881
                    self.expression()
                    self.state = 2886
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 2887
                self.match(Verilog2001Parser.T__64)
                self.state = 2888
                self.function_statement_or_null()
                pass
            elif token in [Verilog2001Parser.T__5]:
                self.enterOuterAlt(localctx, 2)
                self.state = 2890
                self.match(Verilog2001Parser.T__5)
                self.state = 2892
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__64:
                    self.state = 2891
                    self.match(Verilog2001Parser.T__64)


                self.state = 2894
                self.function_statement_or_null()
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Function_loop_statementContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def function_statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.Function_statementContext,0)


        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def variable_assignment(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Variable_assignmentContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Variable_assignmentContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_function_loop_statement

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterFunction_loop_statement" ):
                listener.enterFunction_loop_statement(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitFunction_loop_statement" ):
                listener.exitFunction_loop_statement(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitFunction_loop_statement" ):
                return visitor.visitFunction_loop_statement(self)
            else:
                return visitor.visitChildren(self)




    def function_loop_statement(self):

        localctx = Verilog2001Parser.Function_loop_statementContext(self, self._ctx, self.state)
        self.enterRule(localctx, 328, self.RULE_function_loop_statement)
        try:
            self.state = 2921
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__124]:
                self.enterOuterAlt(localctx, 1)
                self.state = 2897
                self.match(Verilog2001Parser.T__124)
                self.state = 2898
                self.function_statement()
                pass
            elif token in [Verilog2001Parser.T__114]:
                self.enterOuterAlt(localctx, 2)
                self.state = 2899
                self.match(Verilog2001Parser.T__114)
                self.state = 2900
                self.match(Verilog2001Parser.T__15)
                self.state = 2901
                self.expression()
                self.state = 2902
                self.match(Verilog2001Parser.T__17)
                self.state = 2903
                self.function_statement()
                pass
            elif token in [Verilog2001Parser.T__125]:
                self.enterOuterAlt(localctx, 3)
                self.state = 2905
                self.match(Verilog2001Parser.T__125)
                self.state = 2906
                self.match(Verilog2001Parser.T__15)
                self.state = 2907
                self.expression()
                self.state = 2908
                self.match(Verilog2001Parser.T__17)
                self.state = 2909
                self.function_statement()
                pass
            elif token in [Verilog2001Parser.T__102]:
                self.enterOuterAlt(localctx, 4)
                self.state = 2911
                self.match(Verilog2001Parser.T__102)
                self.state = 2912
                self.match(Verilog2001Parser.T__15)
                self.state = 2913
                self.variable_assignment()
                self.state = 2914
                self.match(Verilog2001Parser.T__1)
                self.state = 2915
                self.expression()
                self.state = 2916
                self.match(Verilog2001Parser.T__1)
                self.state = 2917
                self.variable_assignment()
                self.state = 2918
                self.match(Verilog2001Parser.T__17)
                self.state = 2919
                self.function_statement()
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Loop_statementContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def statement(self):
            return self.getTypedRuleContext(Verilog2001Parser.StatementContext,0)


        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def variable_assignment(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Variable_assignmentContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Variable_assignmentContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_loop_statement

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterLoop_statement" ):
                listener.enterLoop_statement(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitLoop_statement" ):
                listener.exitLoop_statement(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitLoop_statement" ):
                return visitor.visitLoop_statement(self)
            else:
                return visitor.visitChildren(self)




    def loop_statement(self):

        localctx = Verilog2001Parser.Loop_statementContext(self, self._ctx, self.state)
        self.enterRule(localctx, 330, self.RULE_loop_statement)
        try:
            self.state = 2947
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__124]:
                self.enterOuterAlt(localctx, 1)
                self.state = 2923
                self.match(Verilog2001Parser.T__124)
                self.state = 2924
                self.statement()
                pass
            elif token in [Verilog2001Parser.T__114]:
                self.enterOuterAlt(localctx, 2)
                self.state = 2925
                self.match(Verilog2001Parser.T__114)
                self.state = 2926
                self.match(Verilog2001Parser.T__15)
                self.state = 2927
                self.expression()
                self.state = 2928
                self.match(Verilog2001Parser.T__17)
                self.state = 2929
                self.statement()
                pass
            elif token in [Verilog2001Parser.T__125]:
                self.enterOuterAlt(localctx, 3)
                self.state = 2931
                self.match(Verilog2001Parser.T__125)
                self.state = 2932
                self.match(Verilog2001Parser.T__15)
                self.state = 2933
                self.expression()
                self.state = 2934
                self.match(Verilog2001Parser.T__17)
                self.state = 2935
                self.statement()
                pass
            elif token in [Verilog2001Parser.T__102]:
                self.enterOuterAlt(localctx, 4)
                self.state = 2937
                self.match(Verilog2001Parser.T__102)
                self.state = 2938
                self.match(Verilog2001Parser.T__15)
                self.state = 2939
                self.variable_assignment()
                self.state = 2940
                self.match(Verilog2001Parser.T__1)
                self.state = 2941
                self.expression()
                self.state = 2942
                self.match(Verilog2001Parser.T__1)
                self.state = 2943
                self.variable_assignment()
                self.state = 2944
                self.match(Verilog2001Parser.T__17)
                self.state = 2945
                self.statement()
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class System_task_enableContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def system_task_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.System_task_identifierContext,0)


        def expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.ExpressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_system_task_enable

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterSystem_task_enable" ):
                listener.enterSystem_task_enable(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitSystem_task_enable" ):
                listener.exitSystem_task_enable(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitSystem_task_enable" ):
                return visitor.visitSystem_task_enable(self)
            else:
                return visitor.visitChildren(self)




    def system_task_enable(self):

        localctx = Verilog2001Parser.System_task_enableContext(self, self._ctx, self.state)
        self.enterRule(localctx, 332, self.RULE_system_task_enable)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2949
            self.system_task_identifier()
            self.state = 2962
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__15:
                self.state = 2950
                self.match(Verilog2001Parser.T__15)
                self.state = 2959
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__15 or _la==Verilog2001Parser.T__18 or ((((_la - 136)) & ~0x3f) == 0 and ((1 << (_la - 136)) & ((1 << (Verilog2001Parser.T__135 - 136)) | (1 << (Verilog2001Parser.T__136 - 136)) | (1 << (Verilog2001Parser.T__140 - 136)) | (1 << (Verilog2001Parser.T__141 - 136)) | (1 << (Verilog2001Parser.T__142 - 136)) | (1 << (Verilog2001Parser.T__143 - 136)) | (1 << (Verilog2001Parser.T__144 - 136)) | (1 << (Verilog2001Parser.T__145 - 136)) | (1 << (Verilog2001Parser.T__146 - 136)) | (1 << (Verilog2001Parser.T__147 - 136)) | (1 << (Verilog2001Parser.T__148 - 136)) | (1 << (Verilog2001Parser.Real_number - 136)) | (1 << (Verilog2001Parser.Decimal_number - 136)) | (1 << (Verilog2001Parser.Binary_number - 136)) | (1 << (Verilog2001Parser.Octal_number - 136)) | (1 << (Verilog2001Parser.Hex_number - 136)) | (1 << (Verilog2001Parser.String - 136)) | (1 << (Verilog2001Parser.Escaped_identifier - 136)) | (1 << (Verilog2001Parser.Simple_identifier - 136)) | (1 << (Verilog2001Parser.Dollar_Identifier - 136)))) != 0):
                    self.state = 2951
                    self.expression()
                    self.state = 2956
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)
                    while _la==Verilog2001Parser.T__16:
                        self.state = 2952
                        self.match(Verilog2001Parser.T__16)
                        self.state = 2953
                        self.expression()
                        self.state = 2958
                        self._errHandler.sync(self)
                        _la = self._input.LA(1)



                self.state = 2961
                self.match(Verilog2001Parser.T__17)


            self.state = 2964
            self.match(Verilog2001Parser.T__1)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Task_enableContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def hierarchical_task_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Hierarchical_task_identifierContext,0)


        def expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.ExpressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_task_enable

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTask_enable" ):
                listener.enterTask_enable(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTask_enable" ):
                listener.exitTask_enable(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTask_enable" ):
                return visitor.visitTask_enable(self)
            else:
                return visitor.visitChildren(self)




    def task_enable(self):

        localctx = Verilog2001Parser.Task_enableContext(self, self._ctx, self.state)
        self.enterRule(localctx, 334, self.RULE_task_enable)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2966
            self.hierarchical_task_identifier()
            self.state = 2979
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__15:
                self.state = 2967
                self.match(Verilog2001Parser.T__15)
                self.state = 2976
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==Verilog2001Parser.T__15 or _la==Verilog2001Parser.T__18 or ((((_la - 136)) & ~0x3f) == 0 and ((1 << (_la - 136)) & ((1 << (Verilog2001Parser.T__135 - 136)) | (1 << (Verilog2001Parser.T__136 - 136)) | (1 << (Verilog2001Parser.T__140 - 136)) | (1 << (Verilog2001Parser.T__141 - 136)) | (1 << (Verilog2001Parser.T__142 - 136)) | (1 << (Verilog2001Parser.T__143 - 136)) | (1 << (Verilog2001Parser.T__144 - 136)) | (1 << (Verilog2001Parser.T__145 - 136)) | (1 << (Verilog2001Parser.T__146 - 136)) | (1 << (Verilog2001Parser.T__147 - 136)) | (1 << (Verilog2001Parser.T__148 - 136)) | (1 << (Verilog2001Parser.Real_number - 136)) | (1 << (Verilog2001Parser.Decimal_number - 136)) | (1 << (Verilog2001Parser.Binary_number - 136)) | (1 << (Verilog2001Parser.Octal_number - 136)) | (1 << (Verilog2001Parser.Hex_number - 136)) | (1 << (Verilog2001Parser.String - 136)) | (1 << (Verilog2001Parser.Escaped_identifier - 136)) | (1 << (Verilog2001Parser.Simple_identifier - 136)) | (1 << (Verilog2001Parser.Dollar_Identifier - 136)))) != 0):
                    self.state = 2968
                    self.expression()
                    self.state = 2973
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)
                    while _la==Verilog2001Parser.T__16:
                        self.state = 2969
                        self.match(Verilog2001Parser.T__16)
                        self.state = 2970
                        self.expression()
                        self.state = 2975
                        self._errHandler.sync(self)
                        _la = self._input.LA(1)



                self.state = 2978
                self.match(Verilog2001Parser.T__17)


            self.state = 2981
            self.match(Verilog2001Parser.T__1)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Specify_blockContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def specify_item(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Specify_itemContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Specify_itemContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_specify_block

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterSpecify_block" ):
                listener.enterSpecify_block(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitSpecify_block" ):
                listener.exitSpecify_block(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitSpecify_block" ):
                return visitor.visitSpecify_block(self)
            else:
                return visitor.visitChildren(self)




    def specify_block(self):

        localctx = Verilog2001Parser.Specify_blockContext(self, self._ctx, self.state)
        self.enterRule(localctx, 336, self.RULE_specify_block)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 2983
            self.match(Verilog2001Parser.T__126)
            self.state = 2987
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__15 or _la==Verilog2001Parser.T__30 or ((((_la - 99)) & ~0x3f) == 0 and ((1 << (_la - 99)) & ((1 << (Verilog2001Parser.T__98 - 99)) | (1 << (Verilog2001Parser.T__128 - 99)) | (1 << (Verilog2001Parser.T__129 - 99)) | (1 << (Verilog2001Parser.T__130 - 99)) | (1 << (Verilog2001Parser.T__131 - 99)) | (1 << (Verilog2001Parser.T__134 - 99)))) != 0) or _la==Verilog2001Parser.Escaped_identifier or _la==Verilog2001Parser.Simple_identifier:
                self.state = 2984
                self.specify_item()
                self.state = 2989
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 2990
            self.match(Verilog2001Parser.T__127)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Specify_itemContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def specparam_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Specparam_declarationContext,0)


        def pulsestyle_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Pulsestyle_declarationContext,0)


        def showcancelled_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Showcancelled_declarationContext,0)


        def path_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Path_declarationContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_specify_item

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterSpecify_item" ):
                listener.enterSpecify_item(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitSpecify_item" ):
                listener.exitSpecify_item(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitSpecify_item" ):
                return visitor.visitSpecify_item(self)
            else:
                return visitor.visitChildren(self)




    def specify_item(self):

        localctx = Verilog2001Parser.Specify_itemContext(self, self._ctx, self.state)
        self.enterRule(localctx, 338, self.RULE_specify_item)
        try:
            self.state = 2996
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__30]:
                self.enterOuterAlt(localctx, 1)
                self.state = 2992
                self.specparam_declaration()
                pass
            elif token in [Verilog2001Parser.T__128, Verilog2001Parser.T__129]:
                self.enterOuterAlt(localctx, 2)
                self.state = 2993
                self.pulsestyle_declaration()
                pass
            elif token in [Verilog2001Parser.T__130, Verilog2001Parser.T__131]:
                self.enterOuterAlt(localctx, 3)
                self.state = 2994
                self.showcancelled_declaration()
                pass
            elif token in [Verilog2001Parser.T__15, Verilog2001Parser.T__98, Verilog2001Parser.T__134, Verilog2001Parser.Escaped_identifier, Verilog2001Parser.Simple_identifier]:
                self.enterOuterAlt(localctx, 4)
                self.state = 2995
                self.path_declaration()
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Pulsestyle_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_path_outputs(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_path_outputsContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_pulsestyle_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPulsestyle_declaration" ):
                listener.enterPulsestyle_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPulsestyle_declaration" ):
                listener.exitPulsestyle_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPulsestyle_declaration" ):
                return visitor.visitPulsestyle_declaration(self)
            else:
                return visitor.visitChildren(self)




    def pulsestyle_declaration(self):

        localctx = Verilog2001Parser.Pulsestyle_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 340, self.RULE_pulsestyle_declaration)
        try:
            self.state = 3006
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__128]:
                self.enterOuterAlt(localctx, 1)
                self.state = 2998
                self.match(Verilog2001Parser.T__128)
                self.state = 2999
                self.list_of_path_outputs()
                self.state = 3000
                self.match(Verilog2001Parser.T__1)
                pass
            elif token in [Verilog2001Parser.T__129]:
                self.enterOuterAlt(localctx, 2)
                self.state = 3002
                self.match(Verilog2001Parser.T__129)
                self.state = 3003
                self.list_of_path_outputs()
                self.state = 3004
                self.match(Verilog2001Parser.T__1)
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Showcancelled_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_path_outputs(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_path_outputsContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_showcancelled_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterShowcancelled_declaration" ):
                listener.enterShowcancelled_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitShowcancelled_declaration" ):
                listener.exitShowcancelled_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitShowcancelled_declaration" ):
                return visitor.visitShowcancelled_declaration(self)
            else:
                return visitor.visitChildren(self)




    def showcancelled_declaration(self):

        localctx = Verilog2001Parser.Showcancelled_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 342, self.RULE_showcancelled_declaration)
        try:
            self.state = 3016
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__130]:
                self.enterOuterAlt(localctx, 1)
                self.state = 3008
                self.match(Verilog2001Parser.T__130)
                self.state = 3009
                self.list_of_path_outputs()
                self.state = 3010
                self.match(Verilog2001Parser.T__1)
                pass
            elif token in [Verilog2001Parser.T__131]:
                self.enterOuterAlt(localctx, 2)
                self.state = 3012
                self.match(Verilog2001Parser.T__131)
                self.state = 3013
                self.list_of_path_outputs()
                self.state = 3014
                self.match(Verilog2001Parser.T__1)
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Path_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def simple_path_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Simple_path_declarationContext,0)


        def edge_sensitive_path_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Edge_sensitive_path_declarationContext,0)


        def state_dependent_path_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.State_dependent_path_declarationContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_path_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPath_declaration" ):
                listener.enterPath_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPath_declaration" ):
                listener.exitPath_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPath_declaration" ):
                return visitor.visitPath_declaration(self)
            else:
                return visitor.visitChildren(self)




    def path_declaration(self):

        localctx = Verilog2001Parser.Path_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 344, self.RULE_path_declaration)
        try:
            self.state = 3027
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,333,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3018
                self.simple_path_declaration()
                self.state = 3019
                self.match(Verilog2001Parser.T__1)
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3021
                self.edge_sensitive_path_declaration()
                self.state = 3022
                self.match(Verilog2001Parser.T__1)
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 3024
                self.state_dependent_path_declaration()
                self.state = 3025
                self.match(Verilog2001Parser.T__1)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Simple_path_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def parallel_path_description(self):
            return self.getTypedRuleContext(Verilog2001Parser.Parallel_path_descriptionContext,0)


        def path_delay_value(self):
            return self.getTypedRuleContext(Verilog2001Parser.Path_delay_valueContext,0)


        def full_path_description(self):
            return self.getTypedRuleContext(Verilog2001Parser.Full_path_descriptionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_simple_path_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterSimple_path_declaration" ):
                listener.enterSimple_path_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitSimple_path_declaration" ):
                listener.exitSimple_path_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitSimple_path_declaration" ):
                return visitor.visitSimple_path_declaration(self)
            else:
                return visitor.visitChildren(self)




    def simple_path_declaration(self):

        localctx = Verilog2001Parser.Simple_path_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 346, self.RULE_simple_path_declaration)
        try:
            self.state = 3037
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.Escaped_identifier, Verilog2001Parser.Simple_identifier]:
                self.enterOuterAlt(localctx, 1)
                self.state = 3029
                self.parallel_path_description()
                self.state = 3030
                self.match(Verilog2001Parser.T__50)
                self.state = 3031
                self.path_delay_value()
                pass
            elif token in [Verilog2001Parser.T__15]:
                self.enterOuterAlt(localctx, 2)
                self.state = 3033
                self.full_path_description()
                self.state = 3034
                self.match(Verilog2001Parser.T__50)
                self.state = 3035
                self.path_delay_value()
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Parallel_path_descriptionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def specify_input_terminal_descriptor(self):
            return self.getTypedRuleContext(Verilog2001Parser.Specify_input_terminal_descriptorContext,0)


        def specify_output_terminal_descriptor(self):
            return self.getTypedRuleContext(Verilog2001Parser.Specify_output_terminal_descriptorContext,0)


        def polarity_operator(self):
            return self.getTypedRuleContext(Verilog2001Parser.Polarity_operatorContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_parallel_path_description

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterParallel_path_description" ):
                listener.enterParallel_path_description(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitParallel_path_description" ):
                listener.exitParallel_path_description(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitParallel_path_description" ):
                return visitor.visitParallel_path_description(self)
            else:
                return visitor.visitChildren(self)




    def parallel_path_description(self):

        localctx = Verilog2001Parser.Parallel_path_descriptionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 348, self.RULE_parallel_path_description)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3039
            self.specify_input_terminal_descriptor()
            self.state = 3041
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__135 or _la==Verilog2001Parser.T__136:
                self.state = 3040
                self.polarity_operator()


            self.state = 3043
            self.match(Verilog2001Parser.T__132)
            self.state = 3044
            self.specify_output_terminal_descriptor()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Full_path_descriptionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_path_inputs(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_path_inputsContext,0)


        def list_of_path_outputs(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_path_outputsContext,0)


        def polarity_operator(self):
            return self.getTypedRuleContext(Verilog2001Parser.Polarity_operatorContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_full_path_description

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterFull_path_description" ):
                listener.enterFull_path_description(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitFull_path_description" ):
                listener.exitFull_path_description(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitFull_path_description" ):
                return visitor.visitFull_path_description(self)
            else:
                return visitor.visitChildren(self)




    def full_path_description(self):

        localctx = Verilog2001Parser.Full_path_descriptionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 350, self.RULE_full_path_description)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3046
            self.match(Verilog2001Parser.T__15)
            self.state = 3047
            self.list_of_path_inputs()
            self.state = 3049
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__135 or _la==Verilog2001Parser.T__136:
                self.state = 3048
                self.polarity_operator()


            self.state = 3051
            self.match(Verilog2001Parser.T__133)
            self.state = 3052
            self.list_of_path_outputs()
            self.state = 3053
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class List_of_path_inputsContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def specify_input_terminal_descriptor(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Specify_input_terminal_descriptorContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Specify_input_terminal_descriptorContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_list_of_path_inputs

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterList_of_path_inputs" ):
                listener.enterList_of_path_inputs(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitList_of_path_inputs" ):
                listener.exitList_of_path_inputs(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitList_of_path_inputs" ):
                return visitor.visitList_of_path_inputs(self)
            else:
                return visitor.visitChildren(self)




    def list_of_path_inputs(self):

        localctx = Verilog2001Parser.List_of_path_inputsContext(self, self._ctx, self.state)
        self.enterRule(localctx, 352, self.RULE_list_of_path_inputs)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3055
            self.specify_input_terminal_descriptor()
            self.state = 3060
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 3056
                self.match(Verilog2001Parser.T__16)
                self.state = 3057
                self.specify_input_terminal_descriptor()
                self.state = 3062
                self._errHandler.sync(self)
                _la = self._input.LA(1)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class List_of_path_outputsContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def specify_output_terminal_descriptor(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Specify_output_terminal_descriptorContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Specify_output_terminal_descriptorContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_list_of_path_outputs

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterList_of_path_outputs" ):
                listener.enterList_of_path_outputs(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitList_of_path_outputs" ):
                listener.exitList_of_path_outputs(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitList_of_path_outputs" ):
                return visitor.visitList_of_path_outputs(self)
            else:
                return visitor.visitChildren(self)




    def list_of_path_outputs(self):

        localctx = Verilog2001Parser.List_of_path_outputsContext(self, self._ctx, self.state)
        self.enterRule(localctx, 354, self.RULE_list_of_path_outputs)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3063
            self.specify_output_terminal_descriptor()
            self.state = 3068
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 3064
                self.match(Verilog2001Parser.T__16)
                self.state = 3065
                self.specify_output_terminal_descriptor()
                self.state = 3070
                self._errHandler.sync(self)
                _la = self._input.LA(1)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Specify_input_terminal_descriptorContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def input_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Input_identifierContext,0)


        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def range_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_specify_input_terminal_descriptor

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterSpecify_input_terminal_descriptor" ):
                listener.enterSpecify_input_terminal_descriptor(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitSpecify_input_terminal_descriptor" ):
                listener.exitSpecify_input_terminal_descriptor(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitSpecify_input_terminal_descriptor" ):
                return visitor.visitSpecify_input_terminal_descriptor(self)
            else:
                return visitor.visitChildren(self)




    def specify_input_terminal_descriptor(self):

        localctx = Verilog2001Parser.Specify_input_terminal_descriptorContext(self, self._ctx, self.state)
        self.enterRule(localctx, 356, self.RULE_specify_input_terminal_descriptor)
        try:
            self.state = 3082
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,339,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3071
                self.input_identifier()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3072
                self.input_identifier()
                self.state = 3073
                self.match(Verilog2001Parser.T__20)
                self.state = 3074
                self.constant_expression()
                self.state = 3075
                self.match(Verilog2001Parser.T__21)
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 3077
                self.input_identifier()
                self.state = 3078
                self.match(Verilog2001Parser.T__20)
                self.state = 3079
                self.range_expression()
                self.state = 3080
                self.match(Verilog2001Parser.T__21)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Specify_output_terminal_descriptorContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def output_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Output_identifierContext,0)


        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def range_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_specify_output_terminal_descriptor

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterSpecify_output_terminal_descriptor" ):
                listener.enterSpecify_output_terminal_descriptor(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitSpecify_output_terminal_descriptor" ):
                listener.exitSpecify_output_terminal_descriptor(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitSpecify_output_terminal_descriptor" ):
                return visitor.visitSpecify_output_terminal_descriptor(self)
            else:
                return visitor.visitChildren(self)




    def specify_output_terminal_descriptor(self):

        localctx = Verilog2001Parser.Specify_output_terminal_descriptorContext(self, self._ctx, self.state)
        self.enterRule(localctx, 358, self.RULE_specify_output_terminal_descriptor)
        try:
            self.state = 3095
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,340,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3084
                self.output_identifier()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3085
                self.output_identifier()
                self.state = 3086
                self.match(Verilog2001Parser.T__20)
                self.state = 3087
                self.constant_expression()
                self.state = 3088
                self.match(Verilog2001Parser.T__21)
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 3090
                self.output_identifier()
                self.state = 3091
                self.match(Verilog2001Parser.T__20)
                self.state = 3092
                self.range_expression()
                self.state = 3093
                self.match(Verilog2001Parser.T__21)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Input_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def input_port_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Input_port_identifierContext,0)


        def inout_port_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Inout_port_identifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_input_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterInput_identifier" ):
                listener.enterInput_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitInput_identifier" ):
                listener.exitInput_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitInput_identifier" ):
                return visitor.visitInput_identifier(self)
            else:
                return visitor.visitChildren(self)




    def input_identifier(self):

        localctx = Verilog2001Parser.Input_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 360, self.RULE_input_identifier)
        try:
            self.state = 3099
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,341,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3097
                self.input_port_identifier()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3098
                self.inout_port_identifier()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Output_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def output_port_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Output_port_identifierContext,0)


        def inout_port_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Inout_port_identifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_output_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterOutput_identifier" ):
                listener.enterOutput_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitOutput_identifier" ):
                listener.exitOutput_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitOutput_identifier" ):
                return visitor.visitOutput_identifier(self)
            else:
                return visitor.visitChildren(self)




    def output_identifier(self):

        localctx = Verilog2001Parser.Output_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 362, self.RULE_output_identifier)
        try:
            self.state = 3103
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,342,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3101
                self.output_port_identifier()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3102
                self.inout_port_identifier()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Path_delay_valueContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_path_delay_expressions(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_path_delay_expressionsContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_path_delay_value

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPath_delay_value" ):
                listener.enterPath_delay_value(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPath_delay_value" ):
                listener.exitPath_delay_value(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPath_delay_value" ):
                return visitor.visitPath_delay_value(self)
            else:
                return visitor.visitChildren(self)




    def path_delay_value(self):

        localctx = Verilog2001Parser.Path_delay_valueContext(self, self._ctx, self.state)
        self.enterRule(localctx, 364, self.RULE_path_delay_value)
        try:
            self.state = 3110
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,343,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3105
                self.list_of_path_delay_expressions()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3106
                self.match(Verilog2001Parser.T__15)
                self.state = 3107
                self.list_of_path_delay_expressions()
                self.state = 3108
                self.match(Verilog2001Parser.T__17)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class List_of_path_delay_expressionsContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def t_path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.T_path_delay_expressionContext,0)


        def trise_path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Trise_path_delay_expressionContext,0)


        def tfall_path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Tfall_path_delay_expressionContext,0)


        def tz_path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Tz_path_delay_expressionContext,0)


        def t01_path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.T01_path_delay_expressionContext,0)


        def t10_path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.T10_path_delay_expressionContext,0)


        def t0z_path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.T0z_path_delay_expressionContext,0)


        def tz1_path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Tz1_path_delay_expressionContext,0)


        def t1z_path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.T1z_path_delay_expressionContext,0)


        def tz0_path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Tz0_path_delay_expressionContext,0)


        def t0x_path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.T0x_path_delay_expressionContext,0)


        def tx1_path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Tx1_path_delay_expressionContext,0)


        def t1x_path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.T1x_path_delay_expressionContext,0)


        def tx0_path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Tx0_path_delay_expressionContext,0)


        def txz_path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Txz_path_delay_expressionContext,0)


        def tzx_path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Tzx_path_delay_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_list_of_path_delay_expressions

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterList_of_path_delay_expressions" ):
                listener.enterList_of_path_delay_expressions(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitList_of_path_delay_expressions" ):
                listener.exitList_of_path_delay_expressions(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitList_of_path_delay_expressions" ):
                return visitor.visitList_of_path_delay_expressions(self)
            else:
                return visitor.visitChildren(self)




    def list_of_path_delay_expressions(self):

        localctx = Verilog2001Parser.List_of_path_delay_expressionsContext(self, self._ctx, self.state)
        self.enterRule(localctx, 366, self.RULE_list_of_path_delay_expressions)
        try:
            self.state = 3159
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,344,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3112
                self.t_path_delay_expression()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3113
                self.trise_path_delay_expression()
                self.state = 3114
                self.match(Verilog2001Parser.T__16)
                self.state = 3115
                self.tfall_path_delay_expression()
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 3117
                self.trise_path_delay_expression()
                self.state = 3118
                self.match(Verilog2001Parser.T__16)
                self.state = 3119
                self.tfall_path_delay_expression()
                self.state = 3120
                self.match(Verilog2001Parser.T__16)
                self.state = 3121
                self.tz_path_delay_expression()
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 3123
                self.t01_path_delay_expression()
                self.state = 3124
                self.match(Verilog2001Parser.T__16)
                self.state = 3125
                self.t10_path_delay_expression()
                self.state = 3126
                self.match(Verilog2001Parser.T__16)
                self.state = 3127
                self.t0z_path_delay_expression()
                self.state = 3128
                self.match(Verilog2001Parser.T__16)
                self.state = 3129
                self.tz1_path_delay_expression()
                self.state = 3130
                self.match(Verilog2001Parser.T__16)
                self.state = 3131
                self.t1z_path_delay_expression()
                self.state = 3132
                self.match(Verilog2001Parser.T__16)
                self.state = 3133
                self.tz0_path_delay_expression()
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 3135
                self.t01_path_delay_expression()
                self.state = 3136
                self.match(Verilog2001Parser.T__16)
                self.state = 3137
                self.t10_path_delay_expression()
                self.state = 3138
                self.match(Verilog2001Parser.T__16)
                self.state = 3139
                self.t0z_path_delay_expression()
                self.state = 3140
                self.match(Verilog2001Parser.T__16)
                self.state = 3141
                self.tz1_path_delay_expression()
                self.state = 3142
                self.match(Verilog2001Parser.T__16)
                self.state = 3143
                self.t1z_path_delay_expression()
                self.state = 3144
                self.match(Verilog2001Parser.T__16)
                self.state = 3145
                self.tz0_path_delay_expression()
                self.state = 3146
                self.match(Verilog2001Parser.T__16)
                self.state = 3147
                self.t0x_path_delay_expression()
                self.state = 3148
                self.match(Verilog2001Parser.T__16)
                self.state = 3149
                self.tx1_path_delay_expression()
                self.state = 3150
                self.match(Verilog2001Parser.T__16)
                self.state = 3151
                self.t1x_path_delay_expression()
                self.state = 3152
                self.match(Verilog2001Parser.T__16)
                self.state = 3153
                self.tx0_path_delay_expression()
                self.state = 3154
                self.match(Verilog2001Parser.T__16)
                self.state = 3155
                self.txz_path_delay_expression()
                self.state = 3156
                self.match(Verilog2001Parser.T__16)
                self.state = 3157
                self.tzx_path_delay_expression()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class T_path_delay_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Path_delay_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_t_path_delay_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterT_path_delay_expression" ):
                listener.enterT_path_delay_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitT_path_delay_expression" ):
                listener.exitT_path_delay_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitT_path_delay_expression" ):
                return visitor.visitT_path_delay_expression(self)
            else:
                return visitor.visitChildren(self)




    def t_path_delay_expression(self):

        localctx = Verilog2001Parser.T_path_delay_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 368, self.RULE_t_path_delay_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3161
            self.path_delay_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Trise_path_delay_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Path_delay_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_trise_path_delay_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTrise_path_delay_expression" ):
                listener.enterTrise_path_delay_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTrise_path_delay_expression" ):
                listener.exitTrise_path_delay_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTrise_path_delay_expression" ):
                return visitor.visitTrise_path_delay_expression(self)
            else:
                return visitor.visitChildren(self)




    def trise_path_delay_expression(self):

        localctx = Verilog2001Parser.Trise_path_delay_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 370, self.RULE_trise_path_delay_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3163
            self.path_delay_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Tfall_path_delay_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Path_delay_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_tfall_path_delay_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTfall_path_delay_expression" ):
                listener.enterTfall_path_delay_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTfall_path_delay_expression" ):
                listener.exitTfall_path_delay_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTfall_path_delay_expression" ):
                return visitor.visitTfall_path_delay_expression(self)
            else:
                return visitor.visitChildren(self)




    def tfall_path_delay_expression(self):

        localctx = Verilog2001Parser.Tfall_path_delay_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 372, self.RULE_tfall_path_delay_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3165
            self.path_delay_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Tz_path_delay_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Path_delay_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_tz_path_delay_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTz_path_delay_expression" ):
                listener.enterTz_path_delay_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTz_path_delay_expression" ):
                listener.exitTz_path_delay_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTz_path_delay_expression" ):
                return visitor.visitTz_path_delay_expression(self)
            else:
                return visitor.visitChildren(self)




    def tz_path_delay_expression(self):

        localctx = Verilog2001Parser.Tz_path_delay_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 374, self.RULE_tz_path_delay_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3167
            self.path_delay_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class T01_path_delay_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Path_delay_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_t01_path_delay_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterT01_path_delay_expression" ):
                listener.enterT01_path_delay_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitT01_path_delay_expression" ):
                listener.exitT01_path_delay_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitT01_path_delay_expression" ):
                return visitor.visitT01_path_delay_expression(self)
            else:
                return visitor.visitChildren(self)




    def t01_path_delay_expression(self):

        localctx = Verilog2001Parser.T01_path_delay_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 376, self.RULE_t01_path_delay_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3169
            self.path_delay_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class T10_path_delay_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Path_delay_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_t10_path_delay_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterT10_path_delay_expression" ):
                listener.enterT10_path_delay_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitT10_path_delay_expression" ):
                listener.exitT10_path_delay_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitT10_path_delay_expression" ):
                return visitor.visitT10_path_delay_expression(self)
            else:
                return visitor.visitChildren(self)




    def t10_path_delay_expression(self):

        localctx = Verilog2001Parser.T10_path_delay_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 378, self.RULE_t10_path_delay_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3171
            self.path_delay_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class T0z_path_delay_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Path_delay_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_t0z_path_delay_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterT0z_path_delay_expression" ):
                listener.enterT0z_path_delay_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitT0z_path_delay_expression" ):
                listener.exitT0z_path_delay_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitT0z_path_delay_expression" ):
                return visitor.visitT0z_path_delay_expression(self)
            else:
                return visitor.visitChildren(self)




    def t0z_path_delay_expression(self):

        localctx = Verilog2001Parser.T0z_path_delay_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 380, self.RULE_t0z_path_delay_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3173
            self.path_delay_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Tz1_path_delay_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Path_delay_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_tz1_path_delay_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTz1_path_delay_expression" ):
                listener.enterTz1_path_delay_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTz1_path_delay_expression" ):
                listener.exitTz1_path_delay_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTz1_path_delay_expression" ):
                return visitor.visitTz1_path_delay_expression(self)
            else:
                return visitor.visitChildren(self)




    def tz1_path_delay_expression(self):

        localctx = Verilog2001Parser.Tz1_path_delay_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 382, self.RULE_tz1_path_delay_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3175
            self.path_delay_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class T1z_path_delay_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Path_delay_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_t1z_path_delay_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterT1z_path_delay_expression" ):
                listener.enterT1z_path_delay_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitT1z_path_delay_expression" ):
                listener.exitT1z_path_delay_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitT1z_path_delay_expression" ):
                return visitor.visitT1z_path_delay_expression(self)
            else:
                return visitor.visitChildren(self)




    def t1z_path_delay_expression(self):

        localctx = Verilog2001Parser.T1z_path_delay_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 384, self.RULE_t1z_path_delay_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3177
            self.path_delay_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Tz0_path_delay_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Path_delay_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_tz0_path_delay_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTz0_path_delay_expression" ):
                listener.enterTz0_path_delay_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTz0_path_delay_expression" ):
                listener.exitTz0_path_delay_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTz0_path_delay_expression" ):
                return visitor.visitTz0_path_delay_expression(self)
            else:
                return visitor.visitChildren(self)




    def tz0_path_delay_expression(self):

        localctx = Verilog2001Parser.Tz0_path_delay_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 386, self.RULE_tz0_path_delay_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3179
            self.path_delay_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class T0x_path_delay_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Path_delay_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_t0x_path_delay_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterT0x_path_delay_expression" ):
                listener.enterT0x_path_delay_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitT0x_path_delay_expression" ):
                listener.exitT0x_path_delay_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitT0x_path_delay_expression" ):
                return visitor.visitT0x_path_delay_expression(self)
            else:
                return visitor.visitChildren(self)




    def t0x_path_delay_expression(self):

        localctx = Verilog2001Parser.T0x_path_delay_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 388, self.RULE_t0x_path_delay_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3181
            self.path_delay_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Tx1_path_delay_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Path_delay_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_tx1_path_delay_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTx1_path_delay_expression" ):
                listener.enterTx1_path_delay_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTx1_path_delay_expression" ):
                listener.exitTx1_path_delay_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTx1_path_delay_expression" ):
                return visitor.visitTx1_path_delay_expression(self)
            else:
                return visitor.visitChildren(self)




    def tx1_path_delay_expression(self):

        localctx = Verilog2001Parser.Tx1_path_delay_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 390, self.RULE_tx1_path_delay_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3183
            self.path_delay_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class T1x_path_delay_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Path_delay_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_t1x_path_delay_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterT1x_path_delay_expression" ):
                listener.enterT1x_path_delay_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitT1x_path_delay_expression" ):
                listener.exitT1x_path_delay_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitT1x_path_delay_expression" ):
                return visitor.visitT1x_path_delay_expression(self)
            else:
                return visitor.visitChildren(self)




    def t1x_path_delay_expression(self):

        localctx = Verilog2001Parser.T1x_path_delay_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 392, self.RULE_t1x_path_delay_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3185
            self.path_delay_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Tx0_path_delay_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Path_delay_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_tx0_path_delay_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTx0_path_delay_expression" ):
                listener.enterTx0_path_delay_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTx0_path_delay_expression" ):
                listener.exitTx0_path_delay_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTx0_path_delay_expression" ):
                return visitor.visitTx0_path_delay_expression(self)
            else:
                return visitor.visitChildren(self)




    def tx0_path_delay_expression(self):

        localctx = Verilog2001Parser.Tx0_path_delay_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 394, self.RULE_tx0_path_delay_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3187
            self.path_delay_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Txz_path_delay_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Path_delay_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_txz_path_delay_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTxz_path_delay_expression" ):
                listener.enterTxz_path_delay_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTxz_path_delay_expression" ):
                listener.exitTxz_path_delay_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTxz_path_delay_expression" ):
                return visitor.visitTxz_path_delay_expression(self)
            else:
                return visitor.visitChildren(self)




    def txz_path_delay_expression(self):

        localctx = Verilog2001Parser.Txz_path_delay_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 396, self.RULE_txz_path_delay_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3189
            self.path_delay_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Tzx_path_delay_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def path_delay_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Path_delay_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_tzx_path_delay_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTzx_path_delay_expression" ):
                listener.enterTzx_path_delay_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTzx_path_delay_expression" ):
                listener.exitTzx_path_delay_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTzx_path_delay_expression" ):
                return visitor.visitTzx_path_delay_expression(self)
            else:
                return visitor.visitChildren(self)




    def tzx_path_delay_expression(self):

        localctx = Verilog2001Parser.Tzx_path_delay_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 398, self.RULE_tzx_path_delay_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3191
            self.path_delay_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Path_delay_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def constant_mintypmax_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_mintypmax_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_path_delay_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPath_delay_expression" ):
                listener.enterPath_delay_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPath_delay_expression" ):
                listener.exitPath_delay_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPath_delay_expression" ):
                return visitor.visitPath_delay_expression(self)
            else:
                return visitor.visitChildren(self)




    def path_delay_expression(self):

        localctx = Verilog2001Parser.Path_delay_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 400, self.RULE_path_delay_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3193
            self.constant_mintypmax_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Edge_sensitive_path_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def parallel_edge_sensitive_path_description(self):
            return self.getTypedRuleContext(Verilog2001Parser.Parallel_edge_sensitive_path_descriptionContext,0)


        def path_delay_value(self):
            return self.getTypedRuleContext(Verilog2001Parser.Path_delay_valueContext,0)


        def full_edge_sensitive_path_description(self):
            return self.getTypedRuleContext(Verilog2001Parser.Full_edge_sensitive_path_descriptionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_edge_sensitive_path_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterEdge_sensitive_path_declaration" ):
                listener.enterEdge_sensitive_path_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitEdge_sensitive_path_declaration" ):
                listener.exitEdge_sensitive_path_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitEdge_sensitive_path_declaration" ):
                return visitor.visitEdge_sensitive_path_declaration(self)
            else:
                return visitor.visitChildren(self)




    def edge_sensitive_path_declaration(self):

        localctx = Verilog2001Parser.Edge_sensitive_path_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 402, self.RULE_edge_sensitive_path_declaration)
        try:
            self.state = 3203
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,345,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3195
                self.parallel_edge_sensitive_path_description()
                self.state = 3196
                self.match(Verilog2001Parser.T__50)
                self.state = 3197
                self.path_delay_value()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3199
                self.full_edge_sensitive_path_description()
                self.state = 3200
                self.match(Verilog2001Parser.T__50)
                self.state = 3201
                self.path_delay_value()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Parallel_edge_sensitive_path_descriptionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def specify_input_terminal_descriptor(self):
            return self.getTypedRuleContext(Verilog2001Parser.Specify_input_terminal_descriptorContext,0)


        def specify_output_terminal_descriptor(self):
            return self.getTypedRuleContext(Verilog2001Parser.Specify_output_terminal_descriptorContext,0)


        def data_source_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Data_source_expressionContext,0)


        def edge_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Edge_identifierContext,0)


        def polarity_operator(self):
            return self.getTypedRuleContext(Verilog2001Parser.Polarity_operatorContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_parallel_edge_sensitive_path_description

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterParallel_edge_sensitive_path_description" ):
                listener.enterParallel_edge_sensitive_path_description(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitParallel_edge_sensitive_path_description" ):
                listener.exitParallel_edge_sensitive_path_description(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitParallel_edge_sensitive_path_description" ):
                return visitor.visitParallel_edge_sensitive_path_description(self)
            else:
                return visitor.visitChildren(self)




    def parallel_edge_sensitive_path_description(self):

        localctx = Verilog2001Parser.Parallel_edge_sensitive_path_descriptionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 404, self.RULE_parallel_edge_sensitive_path_description)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3205
            self.match(Verilog2001Parser.T__15)
            self.state = 3207
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__119 or _la==Verilog2001Parser.T__120:
                self.state = 3206
                self.edge_identifier()


            self.state = 3209
            self.specify_input_terminal_descriptor()
            self.state = 3210
            self.match(Verilog2001Parser.T__132)
            self.state = 3211
            self.specify_output_terminal_descriptor()
            self.state = 3213
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__135 or _la==Verilog2001Parser.T__136:
                self.state = 3212
                self.polarity_operator()


            self.state = 3215
            self.match(Verilog2001Parser.T__64)
            self.state = 3216
            self.data_source_expression()
            self.state = 3217
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Full_edge_sensitive_path_descriptionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def list_of_path_inputs(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_path_inputsContext,0)


        def list_of_path_outputs(self):
            return self.getTypedRuleContext(Verilog2001Parser.List_of_path_outputsContext,0)


        def data_source_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Data_source_expressionContext,0)


        def edge_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Edge_identifierContext,0)


        def polarity_operator(self):
            return self.getTypedRuleContext(Verilog2001Parser.Polarity_operatorContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_full_edge_sensitive_path_description

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterFull_edge_sensitive_path_description" ):
                listener.enterFull_edge_sensitive_path_description(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitFull_edge_sensitive_path_description" ):
                listener.exitFull_edge_sensitive_path_description(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitFull_edge_sensitive_path_description" ):
                return visitor.visitFull_edge_sensitive_path_description(self)
            else:
                return visitor.visitChildren(self)




    def full_edge_sensitive_path_description(self):

        localctx = Verilog2001Parser.Full_edge_sensitive_path_descriptionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 406, self.RULE_full_edge_sensitive_path_description)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3219
            self.match(Verilog2001Parser.T__15)
            self.state = 3221
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__119 or _la==Verilog2001Parser.T__120:
                self.state = 3220
                self.edge_identifier()


            self.state = 3223
            self.list_of_path_inputs()
            self.state = 3224
            self.match(Verilog2001Parser.T__133)
            self.state = 3225
            self.list_of_path_outputs()
            self.state = 3227
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__135 or _la==Verilog2001Parser.T__136:
                self.state = 3226
                self.polarity_operator()


            self.state = 3229
            self.match(Verilog2001Parser.T__64)
            self.state = 3230
            self.data_source_expression()
            self.state = 3231
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Data_source_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_data_source_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterData_source_expression" ):
                listener.enterData_source_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitData_source_expression" ):
                listener.exitData_source_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitData_source_expression" ):
                return visitor.visitData_source_expression(self)
            else:
                return visitor.visitChildren(self)




    def data_source_expression(self):

        localctx = Verilog2001Parser.Data_source_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 408, self.RULE_data_source_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3233
            self.expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Edge_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_edge_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterEdge_identifier" ):
                listener.enterEdge_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitEdge_identifier" ):
                listener.exitEdge_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitEdge_identifier" ):
                return visitor.visitEdge_identifier(self)
            else:
                return visitor.visitChildren(self)




    def edge_identifier(self):

        localctx = Verilog2001Parser.Edge_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 410, self.RULE_edge_identifier)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3235
            _la = self._input.LA(1)
            if not(_la==Verilog2001Parser.T__119 or _la==Verilog2001Parser.T__120):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class State_dependent_path_declarationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def module_path_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Module_path_expressionContext,0)


        def simple_path_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Simple_path_declarationContext,0)


        def edge_sensitive_path_declaration(self):
            return self.getTypedRuleContext(Verilog2001Parser.Edge_sensitive_path_declarationContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_state_dependent_path_declaration

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterState_dependent_path_declaration" ):
                listener.enterState_dependent_path_declaration(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitState_dependent_path_declaration" ):
                listener.exitState_dependent_path_declaration(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitState_dependent_path_declaration" ):
                return visitor.visitState_dependent_path_declaration(self)
            else:
                return visitor.visitChildren(self)




    def state_dependent_path_declaration(self):

        localctx = Verilog2001Parser.State_dependent_path_declarationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 412, self.RULE_state_dependent_path_declaration)
        try:
            self.state = 3251
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,350,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3237
                self.match(Verilog2001Parser.T__98)
                self.state = 3238
                self.match(Verilog2001Parser.T__15)
                self.state = 3239
                self.module_path_expression()
                self.state = 3240
                self.match(Verilog2001Parser.T__17)
                self.state = 3241
                self.simple_path_declaration()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3243
                self.match(Verilog2001Parser.T__98)
                self.state = 3244
                self.match(Verilog2001Parser.T__15)
                self.state = 3245
                self.module_path_expression()
                self.state = 3246
                self.match(Verilog2001Parser.T__17)
                self.state = 3247
                self.edge_sensitive_path_declaration()
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 3249
                self.match(Verilog2001Parser.T__134)
                self.state = 3250
                self.simple_path_declaration()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Polarity_operatorContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_polarity_operator

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPolarity_operator" ):
                listener.enterPolarity_operator(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPolarity_operator" ):
                listener.exitPolarity_operator(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPolarity_operator" ):
                return visitor.visitPolarity_operator(self)
            else:
                return visitor.visitChildren(self)




    def polarity_operator(self):

        localctx = Verilog2001Parser.Polarity_operatorContext(self, self._ctx, self.state)
        self.enterRule(localctx, 414, self.RULE_polarity_operator)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3253
            _la = self._input.LA(1)
            if not(_la==Verilog2001Parser.T__135 or _la==Verilog2001Parser.T__136):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Checktime_conditionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def mintypmax_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Mintypmax_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_checktime_condition

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterChecktime_condition" ):
                listener.enterChecktime_condition(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitChecktime_condition" ):
                listener.exitChecktime_condition(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitChecktime_condition" ):
                return visitor.visitChecktime_condition(self)
            else:
                return visitor.visitChildren(self)




    def checktime_condition(self):

        localctx = Verilog2001Parser.Checktime_conditionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 416, self.RULE_checktime_condition)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3255
            self.mintypmax_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Delayed_dataContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def terminal_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Terminal_identifierContext,0)


        def constant_mintypmax_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_mintypmax_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_delayed_data

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterDelayed_data" ):
                listener.enterDelayed_data(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitDelayed_data" ):
                listener.exitDelayed_data(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitDelayed_data" ):
                return visitor.visitDelayed_data(self)
            else:
                return visitor.visitChildren(self)




    def delayed_data(self):

        localctx = Verilog2001Parser.Delayed_dataContext(self, self._ctx, self.state)
        self.enterRule(localctx, 418, self.RULE_delayed_data)
        try:
            self.state = 3263
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,351,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3257
                self.terminal_identifier()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3258
                self.terminal_identifier()
                self.state = 3259
                self.match(Verilog2001Parser.T__20)
                self.state = 3260
                self.constant_mintypmax_expression()
                self.state = 3261
                self.match(Verilog2001Parser.T__21)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Delayed_referenceContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def terminal_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Terminal_identifierContext,0)


        def constant_mintypmax_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_mintypmax_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_delayed_reference

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterDelayed_reference" ):
                listener.enterDelayed_reference(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitDelayed_reference" ):
                listener.exitDelayed_reference(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitDelayed_reference" ):
                return visitor.visitDelayed_reference(self)
            else:
                return visitor.visitChildren(self)




    def delayed_reference(self):

        localctx = Verilog2001Parser.Delayed_referenceContext(self, self._ctx, self.state)
        self.enterRule(localctx, 420, self.RULE_delayed_reference)
        try:
            self.state = 3271
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,352,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3265
                self.terminal_identifier()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3266
                self.terminal_identifier()
                self.state = 3267
                self.match(Verilog2001Parser.T__20)
                self.state = 3268
                self.constant_mintypmax_expression()
                self.state = 3269
                self.match(Verilog2001Parser.T__21)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class End_edge_offsetContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def mintypmax_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Mintypmax_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_end_edge_offset

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterEnd_edge_offset" ):
                listener.enterEnd_edge_offset(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitEnd_edge_offset" ):
                listener.exitEnd_edge_offset(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitEnd_edge_offset" ):
                return visitor.visitEnd_edge_offset(self)
            else:
                return visitor.visitChildren(self)




    def end_edge_offset(self):

        localctx = Verilog2001Parser.End_edge_offsetContext(self, self._ctx, self.state)
        self.enterRule(localctx, 422, self.RULE_end_edge_offset)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3273
            self.mintypmax_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Event_based_flagContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_event_based_flag

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterEvent_based_flag" ):
                listener.enterEvent_based_flag(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitEvent_based_flag" ):
                listener.exitEvent_based_flag(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitEvent_based_flag" ):
                return visitor.visitEvent_based_flag(self)
            else:
                return visitor.visitChildren(self)




    def event_based_flag(self):

        localctx = Verilog2001Parser.Event_based_flagContext(self, self._ctx, self.state)
        self.enterRule(localctx, 424, self.RULE_event_based_flag)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3275
            self.constant_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Notify_regContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def variable_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Variable_identifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_notify_reg

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterNotify_reg" ):
                listener.enterNotify_reg(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitNotify_reg" ):
                listener.exitNotify_reg(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitNotify_reg" ):
                return visitor.visitNotify_reg(self)
            else:
                return visitor.visitChildren(self)




    def notify_reg(self):

        localctx = Verilog2001Parser.Notify_regContext(self, self._ctx, self.state)
        self.enterRule(localctx, 426, self.RULE_notify_reg)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3277
            self.variable_identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Remain_active_flagContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def constant_mintypmax_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_mintypmax_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_remain_active_flag

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterRemain_active_flag" ):
                listener.enterRemain_active_flag(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitRemain_active_flag" ):
                listener.exitRemain_active_flag(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitRemain_active_flag" ):
                return visitor.visitRemain_active_flag(self)
            else:
                return visitor.visitChildren(self)




    def remain_active_flag(self):

        localctx = Verilog2001Parser.Remain_active_flagContext(self, self._ctx, self.state)
        self.enterRule(localctx, 428, self.RULE_remain_active_flag)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3279
            self.constant_mintypmax_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Stamptime_conditionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def mintypmax_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Mintypmax_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_stamptime_condition

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterStamptime_condition" ):
                listener.enterStamptime_condition(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitStamptime_condition" ):
                listener.exitStamptime_condition(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitStamptime_condition" ):
                return visitor.visitStamptime_condition(self)
            else:
                return visitor.visitChildren(self)




    def stamptime_condition(self):

        localctx = Verilog2001Parser.Stamptime_conditionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 430, self.RULE_stamptime_condition)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3281
            self.mintypmax_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Start_edge_offsetContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def mintypmax_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Mintypmax_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_start_edge_offset

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterStart_edge_offset" ):
                listener.enterStart_edge_offset(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitStart_edge_offset" ):
                listener.exitStart_edge_offset(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitStart_edge_offset" ):
                return visitor.visitStart_edge_offset(self)
            else:
                return visitor.visitChildren(self)




    def start_edge_offset(self):

        localctx = Verilog2001Parser.Start_edge_offsetContext(self, self._ctx, self.state)
        self.enterRule(localctx, 432, self.RULE_start_edge_offset)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3283
            self.mintypmax_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class ThresholdContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_threshold

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterThreshold" ):
                listener.enterThreshold(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitThreshold" ):
                listener.exitThreshold(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitThreshold" ):
                return visitor.visitThreshold(self)
            else:
                return visitor.visitChildren(self)




    def threshold(self):

        localctx = Verilog2001Parser.ThresholdContext(self, self._ctx, self.state)
        self.enterRule(localctx, 434, self.RULE_threshold)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3285
            self.constant_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Timing_check_limitContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_timing_check_limit

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTiming_check_limit" ):
                listener.enterTiming_check_limit(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTiming_check_limit" ):
                listener.exitTiming_check_limit(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTiming_check_limit" ):
                return visitor.visitTiming_check_limit(self)
            else:
                return visitor.visitChildren(self)




    def timing_check_limit(self):

        localctx = Verilog2001Parser.Timing_check_limitContext(self, self._ctx, self.state)
        self.enterRule(localctx, 436, self.RULE_timing_check_limit)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3287
            self.expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class ConcatenationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.ExpressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_concatenation

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterConcatenation" ):
                listener.enterConcatenation(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitConcatenation" ):
                listener.exitConcatenation(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitConcatenation" ):
                return visitor.visitConcatenation(self)
            else:
                return visitor.visitChildren(self)




    def concatenation(self):

        localctx = Verilog2001Parser.ConcatenationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 438, self.RULE_concatenation)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3289
            self.match(Verilog2001Parser.T__18)
            self.state = 3290
            self.expression()
            self.state = 3295
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 3291
                self.match(Verilog2001Parser.T__16)
                self.state = 3292
                self.expression()
                self.state = 3297
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 3298
            self.match(Verilog2001Parser.T__19)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Constant_concatenationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def constant_expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Constant_expressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_constant_concatenation

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterConstant_concatenation" ):
                listener.enterConstant_concatenation(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitConstant_concatenation" ):
                listener.exitConstant_concatenation(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitConstant_concatenation" ):
                return visitor.visitConstant_concatenation(self)
            else:
                return visitor.visitChildren(self)




    def constant_concatenation(self):

        localctx = Verilog2001Parser.Constant_concatenationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 440, self.RULE_constant_concatenation)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3300
            self.match(Verilog2001Parser.T__18)
            self.state = 3301
            self.constant_expression()
            self.state = 3306
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 3302
                self.match(Verilog2001Parser.T__16)
                self.state = 3303
                self.constant_expression()
                self.state = 3308
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 3309
            self.match(Verilog2001Parser.T__19)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Constant_multiple_concatenationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def constant_concatenation(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_concatenationContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_constant_multiple_concatenation

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterConstant_multiple_concatenation" ):
                listener.enterConstant_multiple_concatenation(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitConstant_multiple_concatenation" ):
                listener.exitConstant_multiple_concatenation(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitConstant_multiple_concatenation" ):
                return visitor.visitConstant_multiple_concatenation(self)
            else:
                return visitor.visitChildren(self)




    def constant_multiple_concatenation(self):

        localctx = Verilog2001Parser.Constant_multiple_concatenationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 442, self.RULE_constant_multiple_concatenation)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3311
            self.match(Verilog2001Parser.T__18)
            self.state = 3312
            self.constant_expression()
            self.state = 3313
            self.constant_concatenation()
            self.state = 3314
            self.match(Verilog2001Parser.T__19)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Module_path_concatenationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def module_path_expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Module_path_expressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Module_path_expressionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_module_path_concatenation

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterModule_path_concatenation" ):
                listener.enterModule_path_concatenation(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitModule_path_concatenation" ):
                listener.exitModule_path_concatenation(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitModule_path_concatenation" ):
                return visitor.visitModule_path_concatenation(self)
            else:
                return visitor.visitChildren(self)




    def module_path_concatenation(self):

        localctx = Verilog2001Parser.Module_path_concatenationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 444, self.RULE_module_path_concatenation)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3316
            self.match(Verilog2001Parser.T__18)
            self.state = 3317
            self.module_path_expression()
            self.state = 3322
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 3318
                self.match(Verilog2001Parser.T__16)
                self.state = 3319
                self.module_path_expression()
                self.state = 3324
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 3325
            self.match(Verilog2001Parser.T__19)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Module_path_multiple_concatenationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def module_path_concatenation(self):
            return self.getTypedRuleContext(Verilog2001Parser.Module_path_concatenationContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_module_path_multiple_concatenation

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterModule_path_multiple_concatenation" ):
                listener.enterModule_path_multiple_concatenation(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitModule_path_multiple_concatenation" ):
                listener.exitModule_path_multiple_concatenation(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitModule_path_multiple_concatenation" ):
                return visitor.visitModule_path_multiple_concatenation(self)
            else:
                return visitor.visitChildren(self)




    def module_path_multiple_concatenation(self):

        localctx = Verilog2001Parser.Module_path_multiple_concatenationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 446, self.RULE_module_path_multiple_concatenation)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3327
            self.match(Verilog2001Parser.T__18)
            self.state = 3328
            self.constant_expression()
            self.state = 3329
            self.module_path_concatenation()
            self.state = 3330
            self.match(Verilog2001Parser.T__19)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Multiple_concatenationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def concatenation(self):
            return self.getTypedRuleContext(Verilog2001Parser.ConcatenationContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_multiple_concatenation

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterMultiple_concatenation" ):
                listener.enterMultiple_concatenation(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitMultiple_concatenation" ):
                listener.exitMultiple_concatenation(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitMultiple_concatenation" ):
                return visitor.visitMultiple_concatenation(self)
            else:
                return visitor.visitChildren(self)




    def multiple_concatenation(self):

        localctx = Verilog2001Parser.Multiple_concatenationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 448, self.RULE_multiple_concatenation)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3332
            self.match(Verilog2001Parser.T__18)
            self.state = 3333
            self.constant_expression()
            self.state = 3334
            self.concatenation()
            self.state = 3335
            self.match(Verilog2001Parser.T__19)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Net_concatenationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def net_concatenation_value(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Net_concatenation_valueContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Net_concatenation_valueContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_net_concatenation

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterNet_concatenation" ):
                listener.enterNet_concatenation(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitNet_concatenation" ):
                listener.exitNet_concatenation(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitNet_concatenation" ):
                return visitor.visitNet_concatenation(self)
            else:
                return visitor.visitChildren(self)




    def net_concatenation(self):

        localctx = Verilog2001Parser.Net_concatenationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 450, self.RULE_net_concatenation)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3337
            self.match(Verilog2001Parser.T__18)
            self.state = 3338
            self.net_concatenation_value()
            self.state = 3343
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 3339
                self.match(Verilog2001Parser.T__16)
                self.state = 3340
                self.net_concatenation_value()
                self.state = 3345
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 3346
            self.match(Verilog2001Parser.T__19)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Net_concatenation_valueContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def hierarchical_net_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Hierarchical_net_identifierContext,0)


        def expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.ExpressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,i)


        def range_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_expressionContext,0)


        def net_concatenation(self):
            return self.getTypedRuleContext(Verilog2001Parser.Net_concatenationContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_net_concatenation_value

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterNet_concatenation_value" ):
                listener.enterNet_concatenation_value(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitNet_concatenation_value" ):
                listener.exitNet_concatenation_value(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitNet_concatenation_value" ):
                return visitor.visitNet_concatenation_value(self)
            else:
                return visitor.visitChildren(self)




    def net_concatenation_value(self):

        localctx = Verilog2001Parser.Net_concatenation_valueContext(self, self._ctx, self.state)
        self.enterRule(localctx, 452, self.RULE_net_concatenation_value)
        self._la = 0 # Token type
        try:
            self.state = 3385
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,359,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3348
                self.hierarchical_net_identifier()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3349
                self.hierarchical_net_identifier()
                self.state = 3350
                self.match(Verilog2001Parser.T__20)
                self.state = 3351
                self.expression()
                self.state = 3352
                self.match(Verilog2001Parser.T__21)
                self.state = 3359
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__20:
                    self.state = 3353
                    self.match(Verilog2001Parser.T__20)
                    self.state = 3354
                    self.expression()
                    self.state = 3355
                    self.match(Verilog2001Parser.T__21)
                    self.state = 3361
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 3362
                self.hierarchical_net_identifier()
                self.state = 3363
                self.match(Verilog2001Parser.T__20)
                self.state = 3364
                self.expression()
                self.state = 3365
                self.match(Verilog2001Parser.T__21)
                self.state = 3372
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,358,self._ctx)
                while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                    if _alt==1:
                        self.state = 3366
                        self.match(Verilog2001Parser.T__20)
                        self.state = 3367
                        self.expression()
                        self.state = 3368
                        self.match(Verilog2001Parser.T__21) 
                    self.state = 3374
                    self._errHandler.sync(self)
                    _alt = self._interp.adaptivePredict(self._input,358,self._ctx)

                self.state = 3375
                self.match(Verilog2001Parser.T__20)
                self.state = 3376
                self.range_expression()
                self.state = 3377
                self.match(Verilog2001Parser.T__21)
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 3379
                self.hierarchical_net_identifier()
                self.state = 3380
                self.match(Verilog2001Parser.T__20)
                self.state = 3381
                self.range_expression()
                self.state = 3382
                self.match(Verilog2001Parser.T__21)
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 3384
                self.net_concatenation()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Variable_concatenationContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def variable_concatenation_value(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Variable_concatenation_valueContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Variable_concatenation_valueContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_variable_concatenation

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterVariable_concatenation" ):
                listener.enterVariable_concatenation(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitVariable_concatenation" ):
                listener.exitVariable_concatenation(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitVariable_concatenation" ):
                return visitor.visitVariable_concatenation(self)
            else:
                return visitor.visitChildren(self)




    def variable_concatenation(self):

        localctx = Verilog2001Parser.Variable_concatenationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 454, self.RULE_variable_concatenation)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3387
            self.match(Verilog2001Parser.T__18)
            self.state = 3388
            self.variable_concatenation_value()
            self.state = 3393
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 3389
                self.match(Verilog2001Parser.T__16)
                self.state = 3390
                self.variable_concatenation_value()
                self.state = 3395
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 3396
            self.match(Verilog2001Parser.T__19)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Variable_concatenation_valueContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def hierarchical_variable_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Hierarchical_variable_identifierContext,0)


        def expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.ExpressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,i)


        def range_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_expressionContext,0)


        def variable_concatenation(self):
            return self.getTypedRuleContext(Verilog2001Parser.Variable_concatenationContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_variable_concatenation_value

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterVariable_concatenation_value" ):
                listener.enterVariable_concatenation_value(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitVariable_concatenation_value" ):
                listener.exitVariable_concatenation_value(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitVariable_concatenation_value" ):
                return visitor.visitVariable_concatenation_value(self)
            else:
                return visitor.visitChildren(self)




    def variable_concatenation_value(self):

        localctx = Verilog2001Parser.Variable_concatenation_valueContext(self, self._ctx, self.state)
        self.enterRule(localctx, 456, self.RULE_variable_concatenation_value)
        self._la = 0 # Token type
        try:
            self.state = 3435
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,363,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3398
                self.hierarchical_variable_identifier()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3399
                self.hierarchical_variable_identifier()
                self.state = 3400
                self.match(Verilog2001Parser.T__20)
                self.state = 3401
                self.expression()
                self.state = 3402
                self.match(Verilog2001Parser.T__21)
                self.state = 3409
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__20:
                    self.state = 3403
                    self.match(Verilog2001Parser.T__20)
                    self.state = 3404
                    self.expression()
                    self.state = 3405
                    self.match(Verilog2001Parser.T__21)
                    self.state = 3411
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 3412
                self.hierarchical_variable_identifier()
                self.state = 3413
                self.match(Verilog2001Parser.T__20)
                self.state = 3414
                self.expression()
                self.state = 3415
                self.match(Verilog2001Parser.T__21)
                self.state = 3422
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,362,self._ctx)
                while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                    if _alt==1:
                        self.state = 3416
                        self.match(Verilog2001Parser.T__20)
                        self.state = 3417
                        self.expression()
                        self.state = 3418
                        self.match(Verilog2001Parser.T__21) 
                    self.state = 3424
                    self._errHandler.sync(self)
                    _alt = self._interp.adaptivePredict(self._input,362,self._ctx)

                self.state = 3425
                self.match(Verilog2001Parser.T__20)
                self.state = 3426
                self.range_expression()
                self.state = 3427
                self.match(Verilog2001Parser.T__21)
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 3429
                self.hierarchical_variable_identifier()
                self.state = 3430
                self.match(Verilog2001Parser.T__20)
                self.state = 3431
                self.range_expression()
                self.state = 3432
                self.match(Verilog2001Parser.T__21)
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 3434
                self.variable_concatenation()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Constant_function_callContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def function_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Function_identifierContext,0)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def constant_expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Constant_expressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_constant_function_call

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterConstant_function_call" ):
                listener.enterConstant_function_call(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitConstant_function_call" ):
                listener.exitConstant_function_call(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitConstant_function_call" ):
                return visitor.visitConstant_function_call(self)
            else:
                return visitor.visitChildren(self)




    def constant_function_call(self):

        localctx = Verilog2001Parser.Constant_function_callContext(self, self._ctx, self.state)
        self.enterRule(localctx, 458, self.RULE_constant_function_call)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3437
            self.function_identifier()
            self.state = 3441
            self._errHandler.sync(self)
            _alt = self._interp.adaptivePredict(self._input,364,self._ctx)
            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                if _alt==1:
                    self.state = 3438
                    self.attribute_instance() 
                self.state = 3443
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,364,self._ctx)

            self.state = 3444
            self.match(Verilog2001Parser.T__15)
            self.state = 3453
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__15 or _la==Verilog2001Parser.T__18 or ((((_la - 136)) & ~0x3f) == 0 and ((1 << (_la - 136)) & ((1 << (Verilog2001Parser.T__135 - 136)) | (1 << (Verilog2001Parser.T__136 - 136)) | (1 << (Verilog2001Parser.T__140 - 136)) | (1 << (Verilog2001Parser.T__141 - 136)) | (1 << (Verilog2001Parser.T__142 - 136)) | (1 << (Verilog2001Parser.T__143 - 136)) | (1 << (Verilog2001Parser.T__144 - 136)) | (1 << (Verilog2001Parser.T__145 - 136)) | (1 << (Verilog2001Parser.T__146 - 136)) | (1 << (Verilog2001Parser.T__147 - 136)) | (1 << (Verilog2001Parser.T__148 - 136)) | (1 << (Verilog2001Parser.Real_number - 136)) | (1 << (Verilog2001Parser.Decimal_number - 136)) | (1 << (Verilog2001Parser.Binary_number - 136)) | (1 << (Verilog2001Parser.Octal_number - 136)) | (1 << (Verilog2001Parser.Hex_number - 136)) | (1 << (Verilog2001Parser.String - 136)) | (1 << (Verilog2001Parser.Escaped_identifier - 136)) | (1 << (Verilog2001Parser.Simple_identifier - 136)) | (1 << (Verilog2001Parser.Dollar_Identifier - 136)))) != 0):
                self.state = 3445
                self.constant_expression()
                self.state = 3450
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 3446
                    self.match(Verilog2001Parser.T__16)
                    self.state = 3447
                    self.constant_expression()
                    self.state = 3452
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)



            self.state = 3455
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Function_callContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def hierarchical_function_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Hierarchical_function_identifierContext,0)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.ExpressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_function_call

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterFunction_call" ):
                listener.enterFunction_call(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitFunction_call" ):
                listener.exitFunction_call(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitFunction_call" ):
                return visitor.visitFunction_call(self)
            else:
                return visitor.visitChildren(self)




    def function_call(self):

        localctx = Verilog2001Parser.Function_callContext(self, self._ctx, self.state)
        self.enterRule(localctx, 460, self.RULE_function_call)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3457
            self.hierarchical_function_identifier()
            self.state = 3461
            self._errHandler.sync(self)
            _alt = self._interp.adaptivePredict(self._input,367,self._ctx)
            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                if _alt==1:
                    self.state = 3458
                    self.attribute_instance() 
                self.state = 3463
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,367,self._ctx)

            self.state = 3464
            self.match(Verilog2001Parser.T__15)
            self.state = 3473
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__15 or _la==Verilog2001Parser.T__18 or ((((_la - 136)) & ~0x3f) == 0 and ((1 << (_la - 136)) & ((1 << (Verilog2001Parser.T__135 - 136)) | (1 << (Verilog2001Parser.T__136 - 136)) | (1 << (Verilog2001Parser.T__140 - 136)) | (1 << (Verilog2001Parser.T__141 - 136)) | (1 << (Verilog2001Parser.T__142 - 136)) | (1 << (Verilog2001Parser.T__143 - 136)) | (1 << (Verilog2001Parser.T__144 - 136)) | (1 << (Verilog2001Parser.T__145 - 136)) | (1 << (Verilog2001Parser.T__146 - 136)) | (1 << (Verilog2001Parser.T__147 - 136)) | (1 << (Verilog2001Parser.T__148 - 136)) | (1 << (Verilog2001Parser.Real_number - 136)) | (1 << (Verilog2001Parser.Decimal_number - 136)) | (1 << (Verilog2001Parser.Binary_number - 136)) | (1 << (Verilog2001Parser.Octal_number - 136)) | (1 << (Verilog2001Parser.Hex_number - 136)) | (1 << (Verilog2001Parser.String - 136)) | (1 << (Verilog2001Parser.Escaped_identifier - 136)) | (1 << (Verilog2001Parser.Simple_identifier - 136)) | (1 << (Verilog2001Parser.Dollar_Identifier - 136)))) != 0):
                self.state = 3465
                self.expression()
                self.state = 3470
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 3466
                    self.match(Verilog2001Parser.T__16)
                    self.state = 3467
                    self.expression()
                    self.state = 3472
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)



            self.state = 3475
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class System_function_callContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def system_function_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.System_function_identifierContext,0)


        def expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.ExpressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_system_function_call

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterSystem_function_call" ):
                listener.enterSystem_function_call(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitSystem_function_call" ):
                listener.exitSystem_function_call(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitSystem_function_call" ):
                return visitor.visitSystem_function_call(self)
            else:
                return visitor.visitChildren(self)




    def system_function_call(self):

        localctx = Verilog2001Parser.System_function_callContext(self, self._ctx, self.state)
        self.enterRule(localctx, 462, self.RULE_system_function_call)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3477
            self.system_function_identifier()
            self.state = 3486
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,371,self._ctx)
            if la_ == 1:
                self.state = 3478
                self.expression()
                self.state = 3483
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,370,self._ctx)
                while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                    if _alt==1:
                        self.state = 3479
                        self.match(Verilog2001Parser.T__16)
                        self.state = 3480
                        self.expression() 
                    self.state = 3485
                    self._errHandler.sync(self)
                    _alt = self._interp.adaptivePredict(self._input,370,self._ctx)



        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Genvar_function_callContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def genvar_function_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Genvar_function_identifierContext,0)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def constant_expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Constant_expressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_genvar_function_call

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterGenvar_function_call" ):
                listener.enterGenvar_function_call(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitGenvar_function_call" ):
                listener.exitGenvar_function_call(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitGenvar_function_call" ):
                return visitor.visitGenvar_function_call(self)
            else:
                return visitor.visitChildren(self)




    def genvar_function_call(self):

        localctx = Verilog2001Parser.Genvar_function_callContext(self, self._ctx, self.state)
        self.enterRule(localctx, 464, self.RULE_genvar_function_call)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3488
            self.genvar_function_identifier()
            self.state = 3492
            self._errHandler.sync(self)
            _alt = self._interp.adaptivePredict(self._input,372,self._ctx)
            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                if _alt==1:
                    self.state = 3489
                    self.attribute_instance() 
                self.state = 3494
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,372,self._ctx)

            self.state = 3495
            self.match(Verilog2001Parser.T__15)
            self.state = 3504
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__15 or _la==Verilog2001Parser.T__18 or ((((_la - 136)) & ~0x3f) == 0 and ((1 << (_la - 136)) & ((1 << (Verilog2001Parser.T__135 - 136)) | (1 << (Verilog2001Parser.T__136 - 136)) | (1 << (Verilog2001Parser.T__140 - 136)) | (1 << (Verilog2001Parser.T__141 - 136)) | (1 << (Verilog2001Parser.T__142 - 136)) | (1 << (Verilog2001Parser.T__143 - 136)) | (1 << (Verilog2001Parser.T__144 - 136)) | (1 << (Verilog2001Parser.T__145 - 136)) | (1 << (Verilog2001Parser.T__146 - 136)) | (1 << (Verilog2001Parser.T__147 - 136)) | (1 << (Verilog2001Parser.T__148 - 136)) | (1 << (Verilog2001Parser.Real_number - 136)) | (1 << (Verilog2001Parser.Decimal_number - 136)) | (1 << (Verilog2001Parser.Binary_number - 136)) | (1 << (Verilog2001Parser.Octal_number - 136)) | (1 << (Verilog2001Parser.Hex_number - 136)) | (1 << (Verilog2001Parser.String - 136)) | (1 << (Verilog2001Parser.Escaped_identifier - 136)) | (1 << (Verilog2001Parser.Simple_identifier - 136)) | (1 << (Verilog2001Parser.Dollar_Identifier - 136)))) != 0):
                self.state = 3496
                self.constant_expression()
                self.state = 3501
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__16:
                    self.state = 3497
                    self.match(Verilog2001Parser.T__16)
                    self.state = 3498
                    self.constant_expression()
                    self.state = 3503
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)



            self.state = 3506
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Base_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_base_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterBase_expression" ):
                listener.enterBase_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitBase_expression" ):
                listener.exitBase_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitBase_expression" ):
                return visitor.visitBase_expression(self)
            else:
                return visitor.visitChildren(self)




    def base_expression(self):

        localctx = Verilog2001Parser.Base_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 466, self.RULE_base_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3508
            self.expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Constant_base_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_constant_base_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterConstant_base_expression" ):
                listener.enterConstant_base_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitConstant_base_expression" ):
                listener.exitConstant_base_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitConstant_base_expression" ):
                return visitor.visitConstant_base_expression(self)
            else:
                return visitor.visitChildren(self)




    def constant_base_expression(self):

        localctx = Verilog2001Parser.Constant_base_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 468, self.RULE_constant_base_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3510
            self.constant_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Constant_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_constant_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterConstant_expression" ):
                listener.enterConstant_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitConstant_expression" ):
                listener.exitConstant_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitConstant_expression" ):
                return visitor.visitConstant_expression(self)
            else:
                return visitor.visitChildren(self)




    def constant_expression(self):

        localctx = Verilog2001Parser.Constant_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 470, self.RULE_constant_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3512
            self.expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Constant_mintypmax_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def constant_expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Constant_expressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_constant_mintypmax_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterConstant_mintypmax_expression" ):
                listener.enterConstant_mintypmax_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitConstant_mintypmax_expression" ):
                listener.exitConstant_mintypmax_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitConstant_mintypmax_expression" ):
                return visitor.visitConstant_mintypmax_expression(self)
            else:
                return visitor.visitChildren(self)




    def constant_mintypmax_expression(self):

        localctx = Verilog2001Parser.Constant_mintypmax_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 472, self.RULE_constant_mintypmax_expression)
        try:
            self.state = 3521
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,375,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3514
                self.constant_expression()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3515
                self.constant_expression()
                self.state = 3516
                self.match(Verilog2001Parser.T__64)
                self.state = 3517
                self.constant_expression()
                self.state = 3518
                self.match(Verilog2001Parser.T__64)
                self.state = 3519
                self.constant_expression()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Constant_range_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def msb_constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Msb_constant_expressionContext,0)


        def lsb_constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Lsb_constant_expressionContext,0)


        def constant_base_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_base_expressionContext,0)


        def width_constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Width_constant_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_constant_range_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterConstant_range_expression" ):
                listener.enterConstant_range_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitConstant_range_expression" ):
                listener.exitConstant_range_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitConstant_range_expression" ):
                return visitor.visitConstant_range_expression(self)
            else:
                return visitor.visitChildren(self)




    def constant_range_expression(self):

        localctx = Verilog2001Parser.Constant_range_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 474, self.RULE_constant_range_expression)
        try:
            self.state = 3536
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,376,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3523
                self.constant_expression()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3524
                self.msb_constant_expression()
                self.state = 3525
                self.match(Verilog2001Parser.T__64)
                self.state = 3526
                self.lsb_constant_expression()
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 3528
                self.constant_base_expression()
                self.state = 3529
                self.match(Verilog2001Parser.T__137)
                self.state = 3530
                self.width_constant_expression()
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 3532
                self.constant_base_expression()
                self.state = 3533
                self.match(Verilog2001Parser.T__138)
                self.state = 3534
                self.width_constant_expression()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Dimension_constant_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_dimension_constant_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterDimension_constant_expression" ):
                listener.enterDimension_constant_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitDimension_constant_expression" ):
                listener.exitDimension_constant_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitDimension_constant_expression" ):
                return visitor.visitDimension_constant_expression(self)
            else:
                return visitor.visitChildren(self)




    def dimension_constant_expression(self):

        localctx = Verilog2001Parser.Dimension_constant_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 476, self.RULE_dimension_constant_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3538
            self.constant_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class ExpressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def term(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.TermContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.TermContext,i)


        def binary_operator(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Binary_operatorContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Binary_operatorContext,i)


        def expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.ExpressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,i)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterExpression" ):
                listener.enterExpression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitExpression" ):
                listener.exitExpression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitExpression" ):
                return visitor.visitExpression(self)
            else:
                return visitor.visitChildren(self)




    def expression(self):

        localctx = Verilog2001Parser.ExpressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 478, self.RULE_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3540
            self.term()
            self.state = 3563
            self._errHandler.sync(self)
            _alt = self._interp.adaptivePredict(self._input,380,self._ctx)
            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                if _alt==1:
                    self.state = 3561
                    self._errHandler.sync(self)
                    token = self._input.LA(1)
                    if token in [Verilog2001Parser.T__108, Verilog2001Parser.T__117, Verilog2001Parser.T__135, Verilog2001Parser.T__136, Verilog2001Parser.T__142, Verilog2001Parser.T__144, Verilog2001Parser.T__146, Verilog2001Parser.T__147, Verilog2001Parser.T__148, Verilog2001Parser.T__149, Verilog2001Parser.T__150, Verilog2001Parser.T__151, Verilog2001Parser.T__152, Verilog2001Parser.T__153, Verilog2001Parser.T__154, Verilog2001Parser.T__155, Verilog2001Parser.T__156, Verilog2001Parser.T__157, Verilog2001Parser.T__158, Verilog2001Parser.T__159, Verilog2001Parser.T__160, Verilog2001Parser.T__161, Verilog2001Parser.T__162, Verilog2001Parser.T__163, Verilog2001Parser.T__164]:
                        self.state = 3541
                        self.binary_operator()
                        self.state = 3545
                        self._errHandler.sync(self)
                        _alt = self._interp.adaptivePredict(self._input,377,self._ctx)
                        while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                            if _alt==1:
                                self.state = 3542
                                self.attribute_instance() 
                            self.state = 3547
                            self._errHandler.sync(self)
                            _alt = self._interp.adaptivePredict(self._input,377,self._ctx)

                        self.state = 3548
                        self.term()
                        pass
                    elif token in [Verilog2001Parser.T__139]:
                        self.state = 3550
                        self.match(Verilog2001Parser.T__139)
                        self.state = 3554
                        self._errHandler.sync(self)
                        _alt = self._interp.adaptivePredict(self._input,378,self._ctx)
                        while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                            if _alt==1:
                                self.state = 3551
                                self.attribute_instance() 
                            self.state = 3556
                            self._errHandler.sync(self)
                            _alt = self._interp.adaptivePredict(self._input,378,self._ctx)

                        self.state = 3557
                        self.expression()
                        self.state = 3558
                        self.match(Verilog2001Parser.T__64)
                        self.state = 3559
                        self.term()
                        pass
                    else:
                        raise NoViableAltException(self)
             
                self.state = 3565
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,380,self._ctx)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class TermContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def unary_operator(self):
            return self.getTypedRuleContext(Verilog2001Parser.Unary_operatorContext,0)


        def primary(self):
            return self.getTypedRuleContext(Verilog2001Parser.PrimaryContext,0)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def String(self):
            return self.getToken(Verilog2001Parser.String, 0)

        def getRuleIndex(self):
            return Verilog2001Parser.RULE_term

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTerm" ):
                listener.enterTerm(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTerm" ):
                listener.exitTerm(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTerm" ):
                return visitor.visitTerm(self)
            else:
                return visitor.visitChildren(self)




    def term(self):

        localctx = Verilog2001Parser.TermContext(self, self._ctx, self.state)
        self.enterRule(localctx, 480, self.RULE_term)
        try:
            self.state = 3577
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__135, Verilog2001Parser.T__136, Verilog2001Parser.T__140, Verilog2001Parser.T__141, Verilog2001Parser.T__142, Verilog2001Parser.T__143, Verilog2001Parser.T__144, Verilog2001Parser.T__145, Verilog2001Parser.T__146, Verilog2001Parser.T__147, Verilog2001Parser.T__148]:
                self.enterOuterAlt(localctx, 1)
                self.state = 3566
                self.unary_operator()
                self.state = 3570
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,381,self._ctx)
                while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                    if _alt==1:
                        self.state = 3567
                        self.attribute_instance() 
                    self.state = 3572
                    self._errHandler.sync(self)
                    _alt = self._interp.adaptivePredict(self._input,381,self._ctx)

                self.state = 3573
                self.primary()
                pass
            elif token in [Verilog2001Parser.T__15, Verilog2001Parser.T__18, Verilog2001Parser.Real_number, Verilog2001Parser.Decimal_number, Verilog2001Parser.Binary_number, Verilog2001Parser.Octal_number, Verilog2001Parser.Hex_number, Verilog2001Parser.Escaped_identifier, Verilog2001Parser.Simple_identifier, Verilog2001Parser.Dollar_Identifier]:
                self.enterOuterAlt(localctx, 2)
                self.state = 3575
                self.primary()
                pass
            elif token in [Verilog2001Parser.String]:
                self.enterOuterAlt(localctx, 3)
                self.state = 3576
                self.match(Verilog2001Parser.String)
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Lsb_constant_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_lsb_constant_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterLsb_constant_expression" ):
                listener.enterLsb_constant_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitLsb_constant_expression" ):
                listener.exitLsb_constant_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitLsb_constant_expression" ):
                return visitor.visitLsb_constant_expression(self)
            else:
                return visitor.visitChildren(self)




    def lsb_constant_expression(self):

        localctx = Verilog2001Parser.Lsb_constant_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 482, self.RULE_lsb_constant_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3579
            self.constant_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Mintypmax_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.ExpressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_mintypmax_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterMintypmax_expression" ):
                listener.enterMintypmax_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitMintypmax_expression" ):
                listener.exitMintypmax_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitMintypmax_expression" ):
                return visitor.visitMintypmax_expression(self)
            else:
                return visitor.visitChildren(self)




    def mintypmax_expression(self):

        localctx = Verilog2001Parser.Mintypmax_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 484, self.RULE_mintypmax_expression)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3581
            self.expression()
            self.state = 3587
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__64:
                self.state = 3582
                self.match(Verilog2001Parser.T__64)
                self.state = 3583
                self.expression()
                self.state = 3584
                self.match(Verilog2001Parser.T__64)
                self.state = 3585
                self.expression()


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Module_path_conditional_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def module_path_expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Module_path_expressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Module_path_expressionContext,i)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_module_path_conditional_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterModule_path_conditional_expression" ):
                listener.enterModule_path_conditional_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitModule_path_conditional_expression" ):
                listener.exitModule_path_conditional_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitModule_path_conditional_expression" ):
                return visitor.visitModule_path_conditional_expression(self)
            else:
                return visitor.visitChildren(self)




    def module_path_conditional_expression(self):

        localctx = Verilog2001Parser.Module_path_conditional_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 486, self.RULE_module_path_conditional_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3589
            self.module_path_expression()
            self.state = 3590
            self.match(Verilog2001Parser.T__139)
            self.state = 3594
            self._errHandler.sync(self)
            _alt = self._interp.adaptivePredict(self._input,384,self._ctx)
            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                if _alt==1:
                    self.state = 3591
                    self.attribute_instance() 
                self.state = 3596
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,384,self._ctx)

            self.state = 3597
            self.module_path_expression()
            self.state = 3598
            self.match(Verilog2001Parser.T__64)
            self.state = 3599
            self.module_path_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Module_path_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def module_path_primary(self):
            return self.getTypedRuleContext(Verilog2001Parser.Module_path_primaryContext,0)


        def unary_module_path_operator(self):
            return self.getTypedRuleContext(Verilog2001Parser.Unary_module_path_operatorContext,0)


        def binary_module_path_operator(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Binary_module_path_operatorContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Binary_module_path_operatorContext,i)


        def module_path_expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Module_path_expressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Module_path_expressionContext,i)


        def attribute_instance(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attribute_instanceContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attribute_instanceContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_module_path_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterModule_path_expression" ):
                listener.enterModule_path_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitModule_path_expression" ):
                listener.exitModule_path_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitModule_path_expression" ):
                return visitor.visitModule_path_expression(self)
            else:
                return visitor.visitChildren(self)




    def module_path_expression(self):

        localctx = Verilog2001Parser.Module_path_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 488, self.RULE_module_path_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3611
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.T__15, Verilog2001Parser.T__18, Verilog2001Parser.Real_number, Verilog2001Parser.Decimal_number, Verilog2001Parser.Binary_number, Verilog2001Parser.Octal_number, Verilog2001Parser.Hex_number, Verilog2001Parser.Escaped_identifier, Verilog2001Parser.Simple_identifier, Verilog2001Parser.Dollar_Identifier]:
                self.state = 3601
                self.module_path_primary()
                pass
            elif token in [Verilog2001Parser.T__140, Verilog2001Parser.T__141, Verilog2001Parser.T__142, Verilog2001Parser.T__143, Verilog2001Parser.T__144, Verilog2001Parser.T__145, Verilog2001Parser.T__146, Verilog2001Parser.T__147, Verilog2001Parser.T__148]:
                self.state = 3602
                self.unary_module_path_operator()
                self.state = 3606
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,385,self._ctx)
                while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                    if _alt==1:
                        self.state = 3603
                        self.attribute_instance() 
                    self.state = 3608
                    self._errHandler.sync(self)
                    _alt = self._interp.adaptivePredict(self._input,385,self._ctx)

                self.state = 3609
                self.module_path_primary()
                pass
            else:
                raise NoViableAltException(self)

            self.state = 3635
            self._errHandler.sync(self)
            _alt = self._interp.adaptivePredict(self._input,390,self._ctx)
            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                if _alt==1:
                    self.state = 3633
                    self._errHandler.sync(self)
                    token = self._input.LA(1)
                    if token in [Verilog2001Parser.T__142, Verilog2001Parser.T__144, Verilog2001Parser.T__146, Verilog2001Parser.T__147, Verilog2001Parser.T__148, Verilog2001Parser.T__151, Verilog2001Parser.T__152, Verilog2001Parser.T__155, Verilog2001Parser.T__156]:
                        self.state = 3613
                        self.binary_module_path_operator()
                        self.state = 3617
                        self._errHandler.sync(self)
                        _alt = self._interp.adaptivePredict(self._input,387,self._ctx)
                        while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                            if _alt==1:
                                self.state = 3614
                                self.attribute_instance() 
                            self.state = 3619
                            self._errHandler.sync(self)
                            _alt = self._interp.adaptivePredict(self._input,387,self._ctx)

                        self.state = 3620
                        self.module_path_expression()
                        pass
                    elif token in [Verilog2001Parser.T__139]:
                        self.state = 3622
                        self.match(Verilog2001Parser.T__139)
                        self.state = 3626
                        self._errHandler.sync(self)
                        _alt = self._interp.adaptivePredict(self._input,388,self._ctx)
                        while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                            if _alt==1:
                                self.state = 3623
                                self.attribute_instance() 
                            self.state = 3628
                            self._errHandler.sync(self)
                            _alt = self._interp.adaptivePredict(self._input,388,self._ctx)

                        self.state = 3629
                        self.module_path_expression()
                        self.state = 3630
                        self.match(Verilog2001Parser.T__64)
                        self.state = 3631
                        self.module_path_expression()
                        pass
                    else:
                        raise NoViableAltException(self)
             
                self.state = 3637
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,390,self._ctx)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Module_path_mintypmax_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def module_path_expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Module_path_expressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Module_path_expressionContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_module_path_mintypmax_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterModule_path_mintypmax_expression" ):
                listener.enterModule_path_mintypmax_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitModule_path_mintypmax_expression" ):
                listener.exitModule_path_mintypmax_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitModule_path_mintypmax_expression" ):
                return visitor.visitModule_path_mintypmax_expression(self)
            else:
                return visitor.visitChildren(self)




    def module_path_mintypmax_expression(self):

        localctx = Verilog2001Parser.Module_path_mintypmax_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 490, self.RULE_module_path_mintypmax_expression)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3638
            self.module_path_expression()
            self.state = 3644
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__64:
                self.state = 3639
                self.match(Verilog2001Parser.T__64)
                self.state = 3640
                self.module_path_expression()
                self.state = 3641
                self.match(Verilog2001Parser.T__64)
                self.state = 3642
                self.module_path_expression()


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Msb_constant_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_msb_constant_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterMsb_constant_expression" ):
                listener.enterMsb_constant_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitMsb_constant_expression" ):
                listener.exitMsb_constant_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitMsb_constant_expression" ):
                return visitor.visitMsb_constant_expression(self)
            else:
                return visitor.visitChildren(self)




    def msb_constant_expression(self):

        localctx = Verilog2001Parser.Msb_constant_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 492, self.RULE_msb_constant_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3646
            self.constant_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Range_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,0)


        def msb_constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Msb_constant_expressionContext,0)


        def lsb_constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Lsb_constant_expressionContext,0)


        def base_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Base_expressionContext,0)


        def width_constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Width_constant_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_range_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterRange_expression" ):
                listener.enterRange_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitRange_expression" ):
                listener.exitRange_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitRange_expression" ):
                return visitor.visitRange_expression(self)
            else:
                return visitor.visitChildren(self)




    def range_expression(self):

        localctx = Verilog2001Parser.Range_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 494, self.RULE_range_expression)
        try:
            self.state = 3661
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,392,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3648
                self.expression()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3649
                self.msb_constant_expression()
                self.state = 3650
                self.match(Verilog2001Parser.T__64)
                self.state = 3651
                self.lsb_constant_expression()
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 3653
                self.base_expression()
                self.state = 3654
                self.match(Verilog2001Parser.T__137)
                self.state = 3655
                self.width_constant_expression()
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 3657
                self.base_expression()
                self.state = 3658
                self.match(Verilog2001Parser.T__138)
                self.state = 3659
                self.width_constant_expression()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Width_constant_expressionContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_width_constant_expression

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterWidth_constant_expression" ):
                listener.enterWidth_constant_expression(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitWidth_constant_expression" ):
                listener.exitWidth_constant_expression(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitWidth_constant_expression" ):
                return visitor.visitWidth_constant_expression(self)
            else:
                return visitor.visitChildren(self)




    def width_constant_expression(self):

        localctx = Verilog2001Parser.Width_constant_expressionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 496, self.RULE_width_constant_expression)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3663
            self.constant_expression()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Constant_primaryContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def constant_concatenation(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_concatenationContext,0)


        def constant_function_call(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_function_callContext,0)


        def constant_mintypmax_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_mintypmax_expressionContext,0)


        def constant_multiple_concatenation(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_multiple_concatenationContext,0)


        def genvar_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Genvar_identifierContext,0)


        def number(self):
            return self.getTypedRuleContext(Verilog2001Parser.NumberContext,0)


        def parameter_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Parameter_identifierContext,0)


        def specparam_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Specparam_identifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_constant_primary

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterConstant_primary" ):
                listener.enterConstant_primary(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitConstant_primary" ):
                listener.exitConstant_primary(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitConstant_primary" ):
                return visitor.visitConstant_primary(self)
            else:
                return visitor.visitChildren(self)




    def constant_primary(self):

        localctx = Verilog2001Parser.Constant_primaryContext(self, self._ctx, self.state)
        self.enterRule(localctx, 498, self.RULE_constant_primary)
        try:
            self.state = 3676
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,393,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3665
                self.constant_concatenation()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3666
                self.constant_function_call()
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 3667
                self.match(Verilog2001Parser.T__15)
                self.state = 3668
                self.constant_mintypmax_expression()
                self.state = 3669
                self.match(Verilog2001Parser.T__17)
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 3671
                self.constant_multiple_concatenation()
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 3672
                self.genvar_identifier()
                pass

            elif la_ == 6:
                self.enterOuterAlt(localctx, 6)
                self.state = 3673
                self.number()
                pass

            elif la_ == 7:
                self.enterOuterAlt(localctx, 7)
                self.state = 3674
                self.parameter_identifier()
                pass

            elif la_ == 8:
                self.enterOuterAlt(localctx, 8)
                self.state = 3675
                self.specparam_identifier()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Module_path_primaryContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def number(self):
            return self.getTypedRuleContext(Verilog2001Parser.NumberContext,0)


        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def module_path_concatenation(self):
            return self.getTypedRuleContext(Verilog2001Parser.Module_path_concatenationContext,0)


        def module_path_multiple_concatenation(self):
            return self.getTypedRuleContext(Verilog2001Parser.Module_path_multiple_concatenationContext,0)


        def function_call(self):
            return self.getTypedRuleContext(Verilog2001Parser.Function_callContext,0)


        def system_function_call(self):
            return self.getTypedRuleContext(Verilog2001Parser.System_function_callContext,0)


        def constant_function_call(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_function_callContext,0)


        def module_path_mintypmax_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Module_path_mintypmax_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_module_path_primary

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterModule_path_primary" ):
                listener.enterModule_path_primary(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitModule_path_primary" ):
                listener.exitModule_path_primary(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitModule_path_primary" ):
                return visitor.visitModule_path_primary(self)
            else:
                return visitor.visitChildren(self)




    def module_path_primary(self):

        localctx = Verilog2001Parser.Module_path_primaryContext(self, self._ctx, self.state)
        self.enterRule(localctx, 500, self.RULE_module_path_primary)
        try:
            self.state = 3689
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,394,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3678
                self.number()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3679
                self.identifier()
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 3680
                self.module_path_concatenation()
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 3681
                self.module_path_multiple_concatenation()
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 3682
                self.function_call()
                pass

            elif la_ == 6:
                self.enterOuterAlt(localctx, 6)
                self.state = 3683
                self.system_function_call()
                pass

            elif la_ == 7:
                self.enterOuterAlt(localctx, 7)
                self.state = 3684
                self.constant_function_call()
                pass

            elif la_ == 8:
                self.enterOuterAlt(localctx, 8)
                self.state = 3685
                self.match(Verilog2001Parser.T__15)
                self.state = 3686
                self.module_path_mintypmax_expression()
                self.state = 3687
                self.match(Verilog2001Parser.T__17)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class PrimaryContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def number(self):
            return self.getTypedRuleContext(Verilog2001Parser.NumberContext,0)


        def hierarchical_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Hierarchical_identifierContext,0)


        def expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.ExpressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,i)


        def range_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_expressionContext,0)


        def concatenation(self):
            return self.getTypedRuleContext(Verilog2001Parser.ConcatenationContext,0)


        def multiple_concatenation(self):
            return self.getTypedRuleContext(Verilog2001Parser.Multiple_concatenationContext,0)


        def function_call(self):
            return self.getTypedRuleContext(Verilog2001Parser.Function_callContext,0)


        def system_function_call(self):
            return self.getTypedRuleContext(Verilog2001Parser.System_function_callContext,0)


        def constant_function_call(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_function_callContext,0)


        def mintypmax_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Mintypmax_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_primary

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPrimary" ):
                listener.enterPrimary(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPrimary" ):
                listener.exitPrimary(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPrimary" ):
                return visitor.visitPrimary(self)
            else:
                return visitor.visitChildren(self)




    def primary(self):

        localctx = Verilog2001Parser.PrimaryContext(self, self._ctx, self.state)
        self.enterRule(localctx, 502, self.RULE_primary)
        self._la = 0 # Token type
        try:
            self.state = 3729
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,397,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3691
                self.number()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3692
                self.hierarchical_identifier()
                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 3693
                self.hierarchical_identifier()
                self.state = 3698 
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while True:
                    self.state = 3694
                    self.match(Verilog2001Parser.T__20)
                    self.state = 3695
                    self.expression()
                    self.state = 3696
                    self.match(Verilog2001Parser.T__21)
                    self.state = 3700 
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)
                    if not (_la==Verilog2001Parser.T__20):
                        break

                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 3702
                self.hierarchical_identifier()
                self.state = 3707 
                self._errHandler.sync(self)
                _alt = 1
                while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                    if _alt == 1:
                        self.state = 3703
                        self.match(Verilog2001Parser.T__20)
                        self.state = 3704
                        self.expression()
                        self.state = 3705
                        self.match(Verilog2001Parser.T__21)

                    else:
                        raise NoViableAltException(self)
                    self.state = 3709 
                    self._errHandler.sync(self)
                    _alt = self._interp.adaptivePredict(self._input,396,self._ctx)

                self.state = 3711
                self.match(Verilog2001Parser.T__20)
                self.state = 3712
                self.range_expression()
                self.state = 3713
                self.match(Verilog2001Parser.T__21)
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 3715
                self.hierarchical_identifier()
                self.state = 3716
                self.match(Verilog2001Parser.T__20)
                self.state = 3717
                self.range_expression()
                self.state = 3718
                self.match(Verilog2001Parser.T__21)
                pass

            elif la_ == 6:
                self.enterOuterAlt(localctx, 6)
                self.state = 3720
                self.concatenation()
                pass

            elif la_ == 7:
                self.enterOuterAlt(localctx, 7)
                self.state = 3721
                self.multiple_concatenation()
                pass

            elif la_ == 8:
                self.enterOuterAlt(localctx, 8)
                self.state = 3722
                self.function_call()
                pass

            elif la_ == 9:
                self.enterOuterAlt(localctx, 9)
                self.state = 3723
                self.system_function_call()
                pass

            elif la_ == 10:
                self.enterOuterAlt(localctx, 10)
                self.state = 3724
                self.constant_function_call()
                pass

            elif la_ == 11:
                self.enterOuterAlt(localctx, 11)
                self.state = 3725
                self.match(Verilog2001Parser.T__15)
                self.state = 3726
                self.mintypmax_expression()
                self.state = 3727
                self.match(Verilog2001Parser.T__17)
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Net_lvalueContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def hierarchical_net_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Hierarchical_net_identifierContext,0)


        def constant_expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Constant_expressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,i)


        def constant_range_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_range_expressionContext,0)


        def net_concatenation(self):
            return self.getTypedRuleContext(Verilog2001Parser.Net_concatenationContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_net_lvalue

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterNet_lvalue" ):
                listener.enterNet_lvalue(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitNet_lvalue" ):
                listener.exitNet_lvalue(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitNet_lvalue" ):
                return visitor.visitNet_lvalue(self)
            else:
                return visitor.visitChildren(self)




    def net_lvalue(self):

        localctx = Verilog2001Parser.Net_lvalueContext(self, self._ctx, self.state)
        self.enterRule(localctx, 504, self.RULE_net_lvalue)
        self._la = 0 # Token type
        try:
            self.state = 3768
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,400,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3731
                self.hierarchical_net_identifier()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3732
                self.hierarchical_net_identifier()
                self.state = 3733
                self.match(Verilog2001Parser.T__20)
                self.state = 3734
                self.constant_expression()
                self.state = 3735
                self.match(Verilog2001Parser.T__21)
                self.state = 3742
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__20:
                    self.state = 3736
                    self.match(Verilog2001Parser.T__20)
                    self.state = 3737
                    self.constant_expression()
                    self.state = 3738
                    self.match(Verilog2001Parser.T__21)
                    self.state = 3744
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 3745
                self.hierarchical_net_identifier()
                self.state = 3746
                self.match(Verilog2001Parser.T__20)
                self.state = 3747
                self.constant_expression()
                self.state = 3748
                self.match(Verilog2001Parser.T__21)
                self.state = 3755
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,399,self._ctx)
                while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                    if _alt==1:
                        self.state = 3749
                        self.match(Verilog2001Parser.T__20)
                        self.state = 3750
                        self.constant_expression()
                        self.state = 3751
                        self.match(Verilog2001Parser.T__21) 
                    self.state = 3757
                    self._errHandler.sync(self)
                    _alt = self._interp.adaptivePredict(self._input,399,self._ctx)

                self.state = 3758
                self.match(Verilog2001Parser.T__20)
                self.state = 3759
                self.constant_range_expression()
                self.state = 3760
                self.match(Verilog2001Parser.T__21)
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 3762
                self.hierarchical_net_identifier()
                self.state = 3763
                self.match(Verilog2001Parser.T__20)
                self.state = 3764
                self.constant_range_expression()
                self.state = 3765
                self.match(Verilog2001Parser.T__21)
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 3767
                self.net_concatenation()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Variable_lvalueContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def hierarchical_variable_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Hierarchical_variable_identifierContext,0)


        def expression(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.ExpressionContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.ExpressionContext,i)


        def range_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_expressionContext,0)


        def variable_concatenation(self):
            return self.getTypedRuleContext(Verilog2001Parser.Variable_concatenationContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_variable_lvalue

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterVariable_lvalue" ):
                listener.enterVariable_lvalue(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitVariable_lvalue" ):
                listener.exitVariable_lvalue(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitVariable_lvalue" ):
                return visitor.visitVariable_lvalue(self)
            else:
                return visitor.visitChildren(self)




    def variable_lvalue(self):

        localctx = Verilog2001Parser.Variable_lvalueContext(self, self._ctx, self.state)
        self.enterRule(localctx, 506, self.RULE_variable_lvalue)
        self._la = 0 # Token type
        try:
            self.state = 3807
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,403,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3770
                self.hierarchical_variable_identifier()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3771
                self.hierarchical_variable_identifier()
                self.state = 3772
                self.match(Verilog2001Parser.T__20)
                self.state = 3773
                self.expression()
                self.state = 3774
                self.match(Verilog2001Parser.T__21)
                self.state = 3781
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==Verilog2001Parser.T__20:
                    self.state = 3775
                    self.match(Verilog2001Parser.T__20)
                    self.state = 3776
                    self.expression()
                    self.state = 3777
                    self.match(Verilog2001Parser.T__21)
                    self.state = 3783
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                pass

            elif la_ == 3:
                self.enterOuterAlt(localctx, 3)
                self.state = 3784
                self.hierarchical_variable_identifier()
                self.state = 3785
                self.match(Verilog2001Parser.T__20)
                self.state = 3786
                self.expression()
                self.state = 3787
                self.match(Verilog2001Parser.T__21)
                self.state = 3794
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,402,self._ctx)
                while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                    if _alt==1:
                        self.state = 3788
                        self.match(Verilog2001Parser.T__20)
                        self.state = 3789
                        self.expression()
                        self.state = 3790
                        self.match(Verilog2001Parser.T__21) 
                    self.state = 3796
                    self._errHandler.sync(self)
                    _alt = self._interp.adaptivePredict(self._input,402,self._ctx)

                self.state = 3797
                self.match(Verilog2001Parser.T__20)
                self.state = 3798
                self.range_expression()
                self.state = 3799
                self.match(Verilog2001Parser.T__21)
                pass

            elif la_ == 4:
                self.enterOuterAlt(localctx, 4)
                self.state = 3801
                self.hierarchical_variable_identifier()
                self.state = 3802
                self.match(Verilog2001Parser.T__20)
                self.state = 3803
                self.range_expression()
                self.state = 3804
                self.match(Verilog2001Parser.T__21)
                pass

            elif la_ == 5:
                self.enterOuterAlt(localctx, 5)
                self.state = 3806
                self.variable_concatenation()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Unary_operatorContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_unary_operator

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterUnary_operator" ):
                listener.enterUnary_operator(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitUnary_operator" ):
                listener.exitUnary_operator(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitUnary_operator" ):
                return visitor.visitUnary_operator(self)
            else:
                return visitor.visitChildren(self)




    def unary_operator(self):

        localctx = Verilog2001Parser.Unary_operatorContext(self, self._ctx, self.state)
        self.enterRule(localctx, 508, self.RULE_unary_operator)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3809
            _la = self._input.LA(1)
            if not(((((_la - 136)) & ~0x3f) == 0 and ((1 << (_la - 136)) & ((1 << (Verilog2001Parser.T__135 - 136)) | (1 << (Verilog2001Parser.T__136 - 136)) | (1 << (Verilog2001Parser.T__140 - 136)) | (1 << (Verilog2001Parser.T__141 - 136)) | (1 << (Verilog2001Parser.T__142 - 136)) | (1 << (Verilog2001Parser.T__143 - 136)) | (1 << (Verilog2001Parser.T__144 - 136)) | (1 << (Verilog2001Parser.T__145 - 136)) | (1 << (Verilog2001Parser.T__146 - 136)) | (1 << (Verilog2001Parser.T__147 - 136)) | (1 << (Verilog2001Parser.T__148 - 136)))) != 0)):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Binary_operatorContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_binary_operator

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterBinary_operator" ):
                listener.enterBinary_operator(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitBinary_operator" ):
                listener.exitBinary_operator(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitBinary_operator" ):
                return visitor.visitBinary_operator(self)
            else:
                return visitor.visitChildren(self)




    def binary_operator(self):

        localctx = Verilog2001Parser.Binary_operatorContext(self, self._ctx, self.state)
        self.enterRule(localctx, 510, self.RULE_binary_operator)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3811
            _la = self._input.LA(1)
            if not(((((_la - 109)) & ~0x3f) == 0 and ((1 << (_la - 109)) & ((1 << (Verilog2001Parser.T__108 - 109)) | (1 << (Verilog2001Parser.T__117 - 109)) | (1 << (Verilog2001Parser.T__135 - 109)) | (1 << (Verilog2001Parser.T__136 - 109)) | (1 << (Verilog2001Parser.T__142 - 109)) | (1 << (Verilog2001Parser.T__144 - 109)) | (1 << (Verilog2001Parser.T__146 - 109)) | (1 << (Verilog2001Parser.T__147 - 109)) | (1 << (Verilog2001Parser.T__148 - 109)) | (1 << (Verilog2001Parser.T__149 - 109)) | (1 << (Verilog2001Parser.T__150 - 109)) | (1 << (Verilog2001Parser.T__151 - 109)) | (1 << (Verilog2001Parser.T__152 - 109)) | (1 << (Verilog2001Parser.T__153 - 109)) | (1 << (Verilog2001Parser.T__154 - 109)) | (1 << (Verilog2001Parser.T__155 - 109)) | (1 << (Verilog2001Parser.T__156 - 109)) | (1 << (Verilog2001Parser.T__157 - 109)) | (1 << (Verilog2001Parser.T__158 - 109)) | (1 << (Verilog2001Parser.T__159 - 109)) | (1 << (Verilog2001Parser.T__160 - 109)) | (1 << (Verilog2001Parser.T__161 - 109)) | (1 << (Verilog2001Parser.T__162 - 109)) | (1 << (Verilog2001Parser.T__163 - 109)) | (1 << (Verilog2001Parser.T__164 - 109)))) != 0)):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Unary_module_path_operatorContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_unary_module_path_operator

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterUnary_module_path_operator" ):
                listener.enterUnary_module_path_operator(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitUnary_module_path_operator" ):
                listener.exitUnary_module_path_operator(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitUnary_module_path_operator" ):
                return visitor.visitUnary_module_path_operator(self)
            else:
                return visitor.visitChildren(self)




    def unary_module_path_operator(self):

        localctx = Verilog2001Parser.Unary_module_path_operatorContext(self, self._ctx, self.state)
        self.enterRule(localctx, 512, self.RULE_unary_module_path_operator)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3813
            _la = self._input.LA(1)
            if not(((((_la - 141)) & ~0x3f) == 0 and ((1 << (_la - 141)) & ((1 << (Verilog2001Parser.T__140 - 141)) | (1 << (Verilog2001Parser.T__141 - 141)) | (1 << (Verilog2001Parser.T__142 - 141)) | (1 << (Verilog2001Parser.T__143 - 141)) | (1 << (Verilog2001Parser.T__144 - 141)) | (1 << (Verilog2001Parser.T__145 - 141)) | (1 << (Verilog2001Parser.T__146 - 141)) | (1 << (Verilog2001Parser.T__147 - 141)) | (1 << (Verilog2001Parser.T__148 - 141)))) != 0)):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Binary_module_path_operatorContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_binary_module_path_operator

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterBinary_module_path_operator" ):
                listener.enterBinary_module_path_operator(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitBinary_module_path_operator" ):
                listener.exitBinary_module_path_operator(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitBinary_module_path_operator" ):
                return visitor.visitBinary_module_path_operator(self)
            else:
                return visitor.visitChildren(self)




    def binary_module_path_operator(self):

        localctx = Verilog2001Parser.Binary_module_path_operatorContext(self, self._ctx, self.state)
        self.enterRule(localctx, 514, self.RULE_binary_module_path_operator)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3815
            _la = self._input.LA(1)
            if not(((((_la - 143)) & ~0x3f) == 0 and ((1 << (_la - 143)) & ((1 << (Verilog2001Parser.T__142 - 143)) | (1 << (Verilog2001Parser.T__144 - 143)) | (1 << (Verilog2001Parser.T__146 - 143)) | (1 << (Verilog2001Parser.T__147 - 143)) | (1 << (Verilog2001Parser.T__148 - 143)) | (1 << (Verilog2001Parser.T__151 - 143)) | (1 << (Verilog2001Parser.T__152 - 143)) | (1 << (Verilog2001Parser.T__155 - 143)) | (1 << (Verilog2001Parser.T__156 - 143)))) != 0)):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class NumberContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def Decimal_number(self):
            return self.getToken(Verilog2001Parser.Decimal_number, 0)

        def Octal_number(self):
            return self.getToken(Verilog2001Parser.Octal_number, 0)

        def Binary_number(self):
            return self.getToken(Verilog2001Parser.Binary_number, 0)

        def Hex_number(self):
            return self.getToken(Verilog2001Parser.Hex_number, 0)

        def Real_number(self):
            return self.getToken(Verilog2001Parser.Real_number, 0)

        def getRuleIndex(self):
            return Verilog2001Parser.RULE_number

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterNumber" ):
                listener.enterNumber(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitNumber" ):
                listener.exitNumber(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitNumber" ):
                return visitor.visitNumber(self)
            else:
                return visitor.visitChildren(self)




    def number(self):

        localctx = Verilog2001Parser.NumberContext(self, self._ctx, self.state)
        self.enterRule(localctx, 516, self.RULE_number)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3817
            _la = self._input.LA(1)
            if not(((((_la - 167)) & ~0x3f) == 0 and ((1 << (_la - 167)) & ((1 << (Verilog2001Parser.Real_number - 167)) | (1 << (Verilog2001Parser.Decimal_number - 167)) | (1 << (Verilog2001Parser.Binary_number - 167)) | (1 << (Verilog2001Parser.Octal_number - 167)) | (1 << (Verilog2001Parser.Hex_number - 167)))) != 0)):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Timing_specContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def Time_Identifier(self, i:int=None):
            if i is None:
                return self.getTokens(Verilog2001Parser.Time_Identifier)
            else:
                return self.getToken(Verilog2001Parser.Time_Identifier, i)

        def getRuleIndex(self):
            return Verilog2001Parser.RULE_timing_spec

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTiming_spec" ):
                listener.enterTiming_spec(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTiming_spec" ):
                listener.exitTiming_spec(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTiming_spec" ):
                return visitor.visitTiming_spec(self)
            else:
                return visitor.visitChildren(self)




    def timing_spec(self):

        localctx = Verilog2001Parser.Timing_specContext(self, self._ctx, self.state)
        self.enterRule(localctx, 518, self.RULE_timing_spec)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3819
            self.match(Verilog2001Parser.T__165)
            self.state = 3820
            self.match(Verilog2001Parser.Time_Identifier)
            self.state = 3821
            self.match(Verilog2001Parser.T__149)
            self.state = 3822
            self.match(Verilog2001Parser.Time_Identifier)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Attribute_instanceContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def attr_spec(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Attr_specContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Attr_specContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_attribute_instance

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterAttribute_instance" ):
                listener.enterAttribute_instance(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitAttribute_instance" ):
                listener.exitAttribute_instance(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitAttribute_instance" ):
                return visitor.visitAttribute_instance(self)
            else:
                return visitor.visitChildren(self)




    def attribute_instance(self):

        localctx = Verilog2001Parser.Attribute_instanceContext(self, self._ctx, self.state)
        self.enterRule(localctx, 520, self.RULE_attribute_instance)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3824
            self.match(Verilog2001Parser.T__15)
            self.state = 3825
            self.match(Verilog2001Parser.T__117)
            self.state = 3826
            self.attr_spec()
            self.state = 3831
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__16:
                self.state = 3827
                self.match(Verilog2001Parser.T__16)
                self.state = 3828
                self.attr_spec()
                self.state = 3833
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 3834
            self.match(Verilog2001Parser.T__117)
            self.state = 3835
            self.match(Verilog2001Parser.T__17)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Attr_specContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def attr_name(self):
            return self.getTypedRuleContext(Verilog2001Parser.Attr_nameContext,0)


        def constant_expression(self):
            return self.getTypedRuleContext(Verilog2001Parser.Constant_expressionContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_attr_spec

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterAttr_spec" ):
                listener.enterAttr_spec(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitAttr_spec" ):
                listener.exitAttr_spec(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitAttr_spec" ):
                return visitor.visitAttr_spec(self)
            else:
                return visitor.visitChildren(self)




    def attr_spec(self):

        localctx = Verilog2001Parser.Attr_specContext(self, self._ctx, self.state)
        self.enterRule(localctx, 522, self.RULE_attr_spec)
        try:
            self.state = 3842
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,405,self._ctx)
            if la_ == 1:
                self.enterOuterAlt(localctx, 1)
                self.state = 3837
                self.attr_name()
                self.state = 3838
                self.match(Verilog2001Parser.T__50)
                self.state = 3839
                self.constant_expression()
                pass

            elif la_ == 2:
                self.enterOuterAlt(localctx, 2)
                self.state = 3841
                self.attr_name()
                pass


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Attr_nameContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_attr_name

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterAttr_name" ):
                listener.enterAttr_name(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitAttr_name" ):
                listener.exitAttr_name(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitAttr_name" ):
                return visitor.visitAttr_name(self)
            else:
                return visitor.visitChildren(self)




    def attr_name(self):

        localctx = Verilog2001Parser.Attr_nameContext(self, self._ctx, self.state)
        self.enterRule(localctx, 524, self.RULE_attr_name)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3844
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Arrayed_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def simple_arrayed_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Simple_arrayed_identifierContext,0)


        def escaped_arrayed_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Escaped_arrayed_identifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_arrayed_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterArrayed_identifier" ):
                listener.enterArrayed_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitArrayed_identifier" ):
                listener.exitArrayed_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitArrayed_identifier" ):
                return visitor.visitArrayed_identifier(self)
            else:
                return visitor.visitChildren(self)




    def arrayed_identifier(self):

        localctx = Verilog2001Parser.Arrayed_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 526, self.RULE_arrayed_identifier)
        try:
            self.state = 3848
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.Simple_identifier]:
                self.enterOuterAlt(localctx, 1)
                self.state = 3846
                self.simple_arrayed_identifier()
                pass
            elif token in [Verilog2001Parser.Escaped_identifier]:
                self.enterOuterAlt(localctx, 2)
                self.state = 3847
                self.escaped_arrayed_identifier()
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Block_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_block_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterBlock_identifier" ):
                listener.enterBlock_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitBlock_identifier" ):
                listener.exitBlock_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitBlock_identifier" ):
                return visitor.visitBlock_identifier(self)
            else:
                return visitor.visitChildren(self)




    def block_identifier(self):

        localctx = Verilog2001Parser.Block_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 528, self.RULE_block_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3850
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Cell_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_cell_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterCell_identifier" ):
                listener.enterCell_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitCell_identifier" ):
                listener.exitCell_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitCell_identifier" ):
                return visitor.visitCell_identifier(self)
            else:
                return visitor.visitChildren(self)




    def cell_identifier(self):

        localctx = Verilog2001Parser.Cell_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 530, self.RULE_cell_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3852
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Config_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_config_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterConfig_identifier" ):
                listener.enterConfig_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitConfig_identifier" ):
                listener.exitConfig_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitConfig_identifier" ):
                return visitor.visitConfig_identifier(self)
            else:
                return visitor.visitChildren(self)




    def config_identifier(self):

        localctx = Verilog2001Parser.Config_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 532, self.RULE_config_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3854
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Escaped_arrayed_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def Escaped_identifier(self):
            return self.getToken(Verilog2001Parser.Escaped_identifier, 0)

        def range_(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_Context,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_escaped_arrayed_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterEscaped_arrayed_identifier" ):
                listener.enterEscaped_arrayed_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitEscaped_arrayed_identifier" ):
                listener.exitEscaped_arrayed_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitEscaped_arrayed_identifier" ):
                return visitor.visitEscaped_arrayed_identifier(self)
            else:
                return visitor.visitChildren(self)




    def escaped_arrayed_identifier(self):

        localctx = Verilog2001Parser.Escaped_arrayed_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 534, self.RULE_escaped_arrayed_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3856
            self.match(Verilog2001Parser.Escaped_identifier)
            self.state = 3858
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,407,self._ctx)
            if la_ == 1:
                self.state = 3857
                self.range_()


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Escaped_hierarchical_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def escaped_hierarchical_branch(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Escaped_hierarchical_branchContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Escaped_hierarchical_branchContext,i)


        def simple_hierarchical_branch(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(Verilog2001Parser.Simple_hierarchical_branchContext)
            else:
                return self.getTypedRuleContext(Verilog2001Parser.Simple_hierarchical_branchContext,i)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_escaped_hierarchical_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterEscaped_hierarchical_identifier" ):
                listener.enterEscaped_hierarchical_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitEscaped_hierarchical_identifier" ):
                listener.exitEscaped_hierarchical_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitEscaped_hierarchical_identifier" ):
                return visitor.visitEscaped_hierarchical_identifier(self)
            else:
                return visitor.visitChildren(self)




    def escaped_hierarchical_identifier(self):

        localctx = Verilog2001Parser.Escaped_hierarchical_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 536, self.RULE_escaped_hierarchical_identifier)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3860
            self.escaped_hierarchical_branch()
            self.state = 3867
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==Verilog2001Parser.T__4:
                self.state = 3865
                self._errHandler.sync(self)
                la_ = self._interp.adaptivePredict(self._input,408,self._ctx)
                if la_ == 1:
                    self.state = 3861
                    self.match(Verilog2001Parser.T__4)
                    self.state = 3862
                    self.simple_hierarchical_branch()
                    pass

                elif la_ == 2:
                    self.state = 3863
                    self.match(Verilog2001Parser.T__4)
                    self.state = 3864
                    self.escaped_hierarchical_branch()
                    pass


                self.state = 3869
                self._errHandler.sync(self)
                _la = self._input.LA(1)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Event_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_event_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterEvent_identifier" ):
                listener.enterEvent_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitEvent_identifier" ):
                listener.exitEvent_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitEvent_identifier" ):
                return visitor.visitEvent_identifier(self)
            else:
                return visitor.visitChildren(self)




    def event_identifier(self):

        localctx = Verilog2001Parser.Event_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 538, self.RULE_event_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3870
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Function_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_function_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterFunction_identifier" ):
                listener.enterFunction_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitFunction_identifier" ):
                listener.exitFunction_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitFunction_identifier" ):
                return visitor.visitFunction_identifier(self)
            else:
                return visitor.visitChildren(self)




    def function_identifier(self):

        localctx = Verilog2001Parser.Function_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 540, self.RULE_function_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3872
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Gate_instance_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def arrayed_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Arrayed_identifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_gate_instance_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterGate_instance_identifier" ):
                listener.enterGate_instance_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitGate_instance_identifier" ):
                listener.exitGate_instance_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitGate_instance_identifier" ):
                return visitor.visitGate_instance_identifier(self)
            else:
                return visitor.visitChildren(self)




    def gate_instance_identifier(self):

        localctx = Verilog2001Parser.Gate_instance_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 542, self.RULE_gate_instance_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3874
            self.arrayed_identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Generate_block_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_generate_block_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterGenerate_block_identifier" ):
                listener.enterGenerate_block_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitGenerate_block_identifier" ):
                listener.exitGenerate_block_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitGenerate_block_identifier" ):
                return visitor.visitGenerate_block_identifier(self)
            else:
                return visitor.visitChildren(self)




    def generate_block_identifier(self):

        localctx = Verilog2001Parser.Generate_block_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 544, self.RULE_generate_block_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3876
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Genvar_function_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_genvar_function_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterGenvar_function_identifier" ):
                listener.enterGenvar_function_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitGenvar_function_identifier" ):
                listener.exitGenvar_function_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitGenvar_function_identifier" ):
                return visitor.visitGenvar_function_identifier(self)
            else:
                return visitor.visitChildren(self)




    def genvar_function_identifier(self):

        localctx = Verilog2001Parser.Genvar_function_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 546, self.RULE_genvar_function_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3878
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Genvar_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_genvar_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterGenvar_identifier" ):
                listener.enterGenvar_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitGenvar_identifier" ):
                listener.exitGenvar_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitGenvar_identifier" ):
                return visitor.visitGenvar_identifier(self)
            else:
                return visitor.visitChildren(self)




    def genvar_identifier(self):

        localctx = Verilog2001Parser.Genvar_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 548, self.RULE_genvar_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3880
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Hierarchical_block_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def hierarchical_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Hierarchical_identifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_hierarchical_block_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterHierarchical_block_identifier" ):
                listener.enterHierarchical_block_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitHierarchical_block_identifier" ):
                listener.exitHierarchical_block_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitHierarchical_block_identifier" ):
                return visitor.visitHierarchical_block_identifier(self)
            else:
                return visitor.visitChildren(self)




    def hierarchical_block_identifier(self):

        localctx = Verilog2001Parser.Hierarchical_block_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 550, self.RULE_hierarchical_block_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3882
            self.hierarchical_identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Hierarchical_event_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def hierarchical_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Hierarchical_identifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_hierarchical_event_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterHierarchical_event_identifier" ):
                listener.enterHierarchical_event_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitHierarchical_event_identifier" ):
                listener.exitHierarchical_event_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitHierarchical_event_identifier" ):
                return visitor.visitHierarchical_event_identifier(self)
            else:
                return visitor.visitChildren(self)




    def hierarchical_event_identifier(self):

        localctx = Verilog2001Parser.Hierarchical_event_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 552, self.RULE_hierarchical_event_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3884
            self.hierarchical_identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Hierarchical_function_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def hierarchical_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Hierarchical_identifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_hierarchical_function_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterHierarchical_function_identifier" ):
                listener.enterHierarchical_function_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitHierarchical_function_identifier" ):
                listener.exitHierarchical_function_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitHierarchical_function_identifier" ):
                return visitor.visitHierarchical_function_identifier(self)
            else:
                return visitor.visitChildren(self)




    def hierarchical_function_identifier(self):

        localctx = Verilog2001Parser.Hierarchical_function_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 554, self.RULE_hierarchical_function_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3886
            self.hierarchical_identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Hierarchical_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def simple_hierarchical_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Simple_hierarchical_identifierContext,0)


        def escaped_hierarchical_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Escaped_hierarchical_identifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_hierarchical_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterHierarchical_identifier" ):
                listener.enterHierarchical_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitHierarchical_identifier" ):
                listener.exitHierarchical_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitHierarchical_identifier" ):
                return visitor.visitHierarchical_identifier(self)
            else:
                return visitor.visitChildren(self)




    def hierarchical_identifier(self):

        localctx = Verilog2001Parser.Hierarchical_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 556, self.RULE_hierarchical_identifier)
        try:
            self.state = 3890
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [Verilog2001Parser.Simple_identifier]:
                self.enterOuterAlt(localctx, 1)
                self.state = 3888
                self.simple_hierarchical_identifier()
                pass
            elif token in [Verilog2001Parser.Escaped_identifier]:
                self.enterOuterAlt(localctx, 2)
                self.state = 3889
                self.escaped_hierarchical_identifier()
                pass
            else:
                raise NoViableAltException(self)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Hierarchical_net_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def hierarchical_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Hierarchical_identifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_hierarchical_net_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterHierarchical_net_identifier" ):
                listener.enterHierarchical_net_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitHierarchical_net_identifier" ):
                listener.exitHierarchical_net_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitHierarchical_net_identifier" ):
                return visitor.visitHierarchical_net_identifier(self)
            else:
                return visitor.visitChildren(self)




    def hierarchical_net_identifier(self):

        localctx = Verilog2001Parser.Hierarchical_net_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 558, self.RULE_hierarchical_net_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3892
            self.hierarchical_identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Hierarchical_variable_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def hierarchical_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Hierarchical_identifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_hierarchical_variable_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterHierarchical_variable_identifier" ):
                listener.enterHierarchical_variable_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitHierarchical_variable_identifier" ):
                listener.exitHierarchical_variable_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitHierarchical_variable_identifier" ):
                return visitor.visitHierarchical_variable_identifier(self)
            else:
                return visitor.visitChildren(self)




    def hierarchical_variable_identifier(self):

        localctx = Verilog2001Parser.Hierarchical_variable_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 560, self.RULE_hierarchical_variable_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3894
            self.hierarchical_identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Hierarchical_task_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def hierarchical_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Hierarchical_identifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_hierarchical_task_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterHierarchical_task_identifier" ):
                listener.enterHierarchical_task_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitHierarchical_task_identifier" ):
                listener.exitHierarchical_task_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitHierarchical_task_identifier" ):
                return visitor.visitHierarchical_task_identifier(self)
            else:
                return visitor.visitChildren(self)




    def hierarchical_task_identifier(self):

        localctx = Verilog2001Parser.Hierarchical_task_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 562, self.RULE_hierarchical_task_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3896
            self.hierarchical_identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class IdentifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def Simple_identifier(self):
            return self.getToken(Verilog2001Parser.Simple_identifier, 0)

        def Escaped_identifier(self):
            return self.getToken(Verilog2001Parser.Escaped_identifier, 0)

        def getRuleIndex(self):
            return Verilog2001Parser.RULE_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterIdentifier" ):
                listener.enterIdentifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitIdentifier" ):
                listener.exitIdentifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitIdentifier" ):
                return visitor.visitIdentifier(self)
            else:
                return visitor.visitChildren(self)




    def identifier(self):

        localctx = Verilog2001Parser.IdentifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 564, self.RULE_identifier)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3898
            _la = self._input.LA(1)
            if not(_la==Verilog2001Parser.Escaped_identifier or _la==Verilog2001Parser.Simple_identifier):
                self._errHandler.recoverInline(self)
            else:
                self._errHandler.reportMatch(self)
                self.consume()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Inout_port_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_inout_port_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterInout_port_identifier" ):
                listener.enterInout_port_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitInout_port_identifier" ):
                listener.exitInout_port_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitInout_port_identifier" ):
                return visitor.visitInout_port_identifier(self)
            else:
                return visitor.visitChildren(self)




    def inout_port_identifier(self):

        localctx = Verilog2001Parser.Inout_port_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 566, self.RULE_inout_port_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3900
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Input_port_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_input_port_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterInput_port_identifier" ):
                listener.enterInput_port_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitInput_port_identifier" ):
                listener.exitInput_port_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitInput_port_identifier" ):
                return visitor.visitInput_port_identifier(self)
            else:
                return visitor.visitChildren(self)




    def input_port_identifier(self):

        localctx = Verilog2001Parser.Input_port_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 568, self.RULE_input_port_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3902
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Instance_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_instance_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterInstance_identifier" ):
                listener.enterInstance_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitInstance_identifier" ):
                listener.exitInstance_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitInstance_identifier" ):
                return visitor.visitInstance_identifier(self)
            else:
                return visitor.visitChildren(self)




    def instance_identifier(self):

        localctx = Verilog2001Parser.Instance_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 570, self.RULE_instance_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3904
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Library_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_library_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterLibrary_identifier" ):
                listener.enterLibrary_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitLibrary_identifier" ):
                listener.exitLibrary_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitLibrary_identifier" ):
                return visitor.visitLibrary_identifier(self)
            else:
                return visitor.visitChildren(self)




    def library_identifier(self):

        localctx = Verilog2001Parser.Library_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 572, self.RULE_library_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3906
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Memory_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_memory_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterMemory_identifier" ):
                listener.enterMemory_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitMemory_identifier" ):
                listener.exitMemory_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitMemory_identifier" ):
                return visitor.visitMemory_identifier(self)
            else:
                return visitor.visitChildren(self)




    def memory_identifier(self):

        localctx = Verilog2001Parser.Memory_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 574, self.RULE_memory_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3908
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Module_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_module_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterModule_identifier" ):
                listener.enterModule_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitModule_identifier" ):
                listener.exitModule_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitModule_identifier" ):
                return visitor.visitModule_identifier(self)
            else:
                return visitor.visitChildren(self)




    def module_identifier(self):

        localctx = Verilog2001Parser.Module_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 576, self.RULE_module_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3910
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Module_instance_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def arrayed_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Arrayed_identifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_module_instance_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterModule_instance_identifier" ):
                listener.enterModule_instance_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitModule_instance_identifier" ):
                listener.exitModule_instance_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitModule_instance_identifier" ):
                return visitor.visitModule_instance_identifier(self)
            else:
                return visitor.visitChildren(self)




    def module_instance_identifier(self):

        localctx = Verilog2001Parser.Module_instance_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 578, self.RULE_module_instance_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3912
            self.arrayed_identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Net_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_net_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterNet_identifier" ):
                listener.enterNet_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitNet_identifier" ):
                listener.exitNet_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitNet_identifier" ):
                return visitor.visitNet_identifier(self)
            else:
                return visitor.visitChildren(self)




    def net_identifier(self):

        localctx = Verilog2001Parser.Net_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 580, self.RULE_net_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3914
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Output_port_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_output_port_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterOutput_port_identifier" ):
                listener.enterOutput_port_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitOutput_port_identifier" ):
                listener.exitOutput_port_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitOutput_port_identifier" ):
                return visitor.visitOutput_port_identifier(self)
            else:
                return visitor.visitChildren(self)




    def output_port_identifier(self):

        localctx = Verilog2001Parser.Output_port_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 582, self.RULE_output_port_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3916
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Parameter_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_parameter_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterParameter_identifier" ):
                listener.enterParameter_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitParameter_identifier" ):
                listener.exitParameter_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitParameter_identifier" ):
                return visitor.visitParameter_identifier(self)
            else:
                return visitor.visitChildren(self)




    def parameter_identifier(self):

        localctx = Verilog2001Parser.Parameter_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 584, self.RULE_parameter_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3918
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Port_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_port_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterPort_identifier" ):
                listener.enterPort_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitPort_identifier" ):
                listener.exitPort_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitPort_identifier" ):
                return visitor.visitPort_identifier(self)
            else:
                return visitor.visitChildren(self)




    def port_identifier(self):

        localctx = Verilog2001Parser.Port_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 586, self.RULE_port_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3920
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Real_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_real_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterReal_identifier" ):
                listener.enterReal_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitReal_identifier" ):
                listener.exitReal_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitReal_identifier" ):
                return visitor.visitReal_identifier(self)
            else:
                return visitor.visitChildren(self)




    def real_identifier(self):

        localctx = Verilog2001Parser.Real_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 588, self.RULE_real_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3922
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Simple_arrayed_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def Simple_identifier(self):
            return self.getToken(Verilog2001Parser.Simple_identifier, 0)

        def range_(self):
            return self.getTypedRuleContext(Verilog2001Parser.Range_Context,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_simple_arrayed_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterSimple_arrayed_identifier" ):
                listener.enterSimple_arrayed_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitSimple_arrayed_identifier" ):
                listener.exitSimple_arrayed_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitSimple_arrayed_identifier" ):
                return visitor.visitSimple_arrayed_identifier(self)
            else:
                return visitor.visitChildren(self)




    def simple_arrayed_identifier(self):

        localctx = Verilog2001Parser.Simple_arrayed_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 590, self.RULE_simple_arrayed_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3924
            self.match(Verilog2001Parser.Simple_identifier)
            self.state = 3926
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,411,self._ctx)
            if la_ == 1:
                self.state = 3925
                self.range_()


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Simple_hierarchical_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def simple_hierarchical_branch(self):
            return self.getTypedRuleContext(Verilog2001Parser.Simple_hierarchical_branchContext,0)


        def Escaped_identifier(self):
            return self.getToken(Verilog2001Parser.Escaped_identifier, 0)

        def getRuleIndex(self):
            return Verilog2001Parser.RULE_simple_hierarchical_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterSimple_hierarchical_identifier" ):
                listener.enterSimple_hierarchical_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitSimple_hierarchical_identifier" ):
                listener.exitSimple_hierarchical_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitSimple_hierarchical_identifier" ):
                return visitor.visitSimple_hierarchical_identifier(self)
            else:
                return visitor.visitChildren(self)




    def simple_hierarchical_identifier(self):

        localctx = Verilog2001Parser.Simple_hierarchical_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 592, self.RULE_simple_hierarchical_identifier)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3928
            self.simple_hierarchical_branch()
            self.state = 3931
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==Verilog2001Parser.T__4:
                self.state = 3929
                self.match(Verilog2001Parser.T__4)
                self.state = 3930
                self.match(Verilog2001Parser.Escaped_identifier)


        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Specparam_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_specparam_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterSpecparam_identifier" ):
                listener.enterSpecparam_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitSpecparam_identifier" ):
                listener.exitSpecparam_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitSpecparam_identifier" ):
                return visitor.visitSpecparam_identifier(self)
            else:
                return visitor.visitChildren(self)




    def specparam_identifier(self):

        localctx = Verilog2001Parser.Specparam_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 594, self.RULE_specparam_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3933
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class System_function_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def Dollar_Identifier(self):
            return self.getToken(Verilog2001Parser.Dollar_Identifier, 0)

        def getRuleIndex(self):
            return Verilog2001Parser.RULE_system_function_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterSystem_function_identifier" ):
                listener.enterSystem_function_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitSystem_function_identifier" ):
                listener.exitSystem_function_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitSystem_function_identifier" ):
                return visitor.visitSystem_function_identifier(self)
            else:
                return visitor.visitChildren(self)




    def system_function_identifier(self):

        localctx = Verilog2001Parser.System_function_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 596, self.RULE_system_function_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3935
            self.match(Verilog2001Parser.Dollar_Identifier)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class System_task_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def Dollar_Identifier(self):
            return self.getToken(Verilog2001Parser.Dollar_Identifier, 0)

        def getRuleIndex(self):
            return Verilog2001Parser.RULE_system_task_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterSystem_task_identifier" ):
                listener.enterSystem_task_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitSystem_task_identifier" ):
                listener.exitSystem_task_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitSystem_task_identifier" ):
                return visitor.visitSystem_task_identifier(self)
            else:
                return visitor.visitChildren(self)




    def system_task_identifier(self):

        localctx = Verilog2001Parser.System_task_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 598, self.RULE_system_task_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3937
            self.match(Verilog2001Parser.Dollar_Identifier)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Task_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_task_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTask_identifier" ):
                listener.enterTask_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTask_identifier" ):
                listener.exitTask_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTask_identifier" ):
                return visitor.visitTask_identifier(self)
            else:
                return visitor.visitChildren(self)




    def task_identifier(self):

        localctx = Verilog2001Parser.Task_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 600, self.RULE_task_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3939
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Terminal_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_terminal_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTerminal_identifier" ):
                listener.enterTerminal_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTerminal_identifier" ):
                listener.exitTerminal_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTerminal_identifier" ):
                return visitor.visitTerminal_identifier(self)
            else:
                return visitor.visitChildren(self)




    def terminal_identifier(self):

        localctx = Verilog2001Parser.Terminal_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 602, self.RULE_terminal_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3941
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Text_macro_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def Simple_identifier(self):
            return self.getToken(Verilog2001Parser.Simple_identifier, 0)

        def getRuleIndex(self):
            return Verilog2001Parser.RULE_text_macro_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterText_macro_identifier" ):
                listener.enterText_macro_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitText_macro_identifier" ):
                listener.exitText_macro_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitText_macro_identifier" ):
                return visitor.visitText_macro_identifier(self)
            else:
                return visitor.visitChildren(self)




    def text_macro_identifier(self):

        localctx = Verilog2001Parser.Text_macro_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 604, self.RULE_text_macro_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3943
            self.match(Verilog2001Parser.Simple_identifier)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Topmodule_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_topmodule_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterTopmodule_identifier" ):
                listener.enterTopmodule_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitTopmodule_identifier" ):
                listener.exitTopmodule_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitTopmodule_identifier" ):
                return visitor.visitTopmodule_identifier(self)
            else:
                return visitor.visitChildren(self)




    def topmodule_identifier(self):

        localctx = Verilog2001Parser.Topmodule_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 606, self.RULE_topmodule_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3945
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Udp_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_udp_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterUdp_identifier" ):
                listener.enterUdp_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitUdp_identifier" ):
                listener.exitUdp_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitUdp_identifier" ):
                return visitor.visitUdp_identifier(self)
            else:
                return visitor.visitChildren(self)




    def udp_identifier(self):

        localctx = Verilog2001Parser.Udp_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 608, self.RULE_udp_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3947
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Udp_instance_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def arrayed_identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.Arrayed_identifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_udp_instance_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterUdp_instance_identifier" ):
                listener.enterUdp_instance_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitUdp_instance_identifier" ):
                listener.exitUdp_instance_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitUdp_instance_identifier" ):
                return visitor.visitUdp_instance_identifier(self)
            else:
                return visitor.visitChildren(self)




    def udp_instance_identifier(self):

        localctx = Verilog2001Parser.Udp_instance_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 610, self.RULE_udp_instance_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3949
            self.arrayed_identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Variable_identifierContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def identifier(self):
            return self.getTypedRuleContext(Verilog2001Parser.IdentifierContext,0)


        def getRuleIndex(self):
            return Verilog2001Parser.RULE_variable_identifier

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterVariable_identifier" ):
                listener.enterVariable_identifier(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitVariable_identifier" ):
                listener.exitVariable_identifier(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitVariable_identifier" ):
                return visitor.visitVariable_identifier(self)
            else:
                return visitor.visitChildren(self)




    def variable_identifier(self):

        localctx = Verilog2001Parser.Variable_identifierContext(self, self._ctx, self.state)
        self.enterRule(localctx, 612, self.RULE_variable_identifier)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3951
            self.identifier()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Simple_hierarchical_branchContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def Simple_identifier(self, i:int=None):
            if i is None:
                return self.getTokens(Verilog2001Parser.Simple_identifier)
            else:
                return self.getToken(Verilog2001Parser.Simple_identifier, i)

        def Decimal_number(self, i:int=None):
            if i is None:
                return self.getTokens(Verilog2001Parser.Decimal_number)
            else:
                return self.getToken(Verilog2001Parser.Decimal_number, i)

        def getRuleIndex(self):
            return Verilog2001Parser.RULE_simple_hierarchical_branch

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterSimple_hierarchical_branch" ):
                listener.enterSimple_hierarchical_branch(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitSimple_hierarchical_branch" ):
                listener.exitSimple_hierarchical_branch(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitSimple_hierarchical_branch" ):
                return visitor.visitSimple_hierarchical_branch(self)
            else:
                return visitor.visitChildren(self)




    def simple_hierarchical_branch(self):

        localctx = Verilog2001Parser.Simple_hierarchical_branchContext(self, self._ctx, self.state)
        self.enterRule(localctx, 614, self.RULE_simple_hierarchical_branch)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3953
            self.match(Verilog2001Parser.Simple_identifier)
            self.state = 3957
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,413,self._ctx)
            if la_ == 1:
                self.state = 3954
                self.match(Verilog2001Parser.T__20)
                self.state = 3955
                self.match(Verilog2001Parser.Decimal_number)
                self.state = 3956
                self.match(Verilog2001Parser.T__21)


            self.state = 3968
            self._errHandler.sync(self)
            _alt = self._interp.adaptivePredict(self._input,415,self._ctx)
            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                if _alt==1:
                    self.state = 3959
                    self.match(Verilog2001Parser.T__4)
                    self.state = 3960
                    self.match(Verilog2001Parser.Simple_identifier)
                    self.state = 3964
                    self._errHandler.sync(self)
                    la_ = self._interp.adaptivePredict(self._input,414,self._ctx)
                    if la_ == 1:
                        self.state = 3961
                        self.match(Verilog2001Parser.T__20)
                        self.state = 3962
                        self.match(Verilog2001Parser.Decimal_number)
                        self.state = 3963
                        self.match(Verilog2001Parser.T__21)

             
                self.state = 3970
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,415,self._ctx)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class Escaped_hierarchical_branchContext(ParserRuleContext):

        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
            super().__init__(parent, invokingState)
            self.parser = parser

        def Escaped_identifier(self, i:int=None):
            if i is None:
                return self.getTokens(Verilog2001Parser.Escaped_identifier)
            else:
                return self.getToken(Verilog2001Parser.Escaped_identifier, i)

        def Decimal_number(self, i:int=None):
            if i is None:
                return self.getTokens(Verilog2001Parser.Decimal_number)
            else:
                return self.getToken(Verilog2001Parser.Decimal_number, i)

        def getRuleIndex(self):
            return Verilog2001Parser.RULE_escaped_hierarchical_branch

        def enterRule(self, listener:ParseTreeListener):
            if hasattr( listener, "enterEscaped_hierarchical_branch" ):
                listener.enterEscaped_hierarchical_branch(self)

        def exitRule(self, listener:ParseTreeListener):
            if hasattr( listener, "exitEscaped_hierarchical_branch" ):
                listener.exitEscaped_hierarchical_branch(self)

        def accept(self, visitor:ParseTreeVisitor):
            if hasattr( visitor, "visitEscaped_hierarchical_branch" ):
                return visitor.visitEscaped_hierarchical_branch(self)
            else:
                return visitor.visitChildren(self)




    def escaped_hierarchical_branch(self):

        localctx = Verilog2001Parser.Escaped_hierarchical_branchContext(self, self._ctx, self.state)
        self.enterRule(localctx, 616, self.RULE_escaped_hierarchical_branch)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 3971
            self.match(Verilog2001Parser.Escaped_identifier)
            self.state = 3975
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,416,self._ctx)
            if la_ == 1:
                self.state = 3972
                self.match(Verilog2001Parser.T__20)
                self.state = 3973
                self.match(Verilog2001Parser.Decimal_number)
                self.state = 3974
                self.match(Verilog2001Parser.T__21)


            self.state = 3986
            self._errHandler.sync(self)
            _alt = self._interp.adaptivePredict(self._input,418,self._ctx)
            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                if _alt==1:
                    self.state = 3977
                    self.match(Verilog2001Parser.T__4)
                    self.state = 3978
                    self.match(Verilog2001Parser.Escaped_identifier)
                    self.state = 3982
                    self._errHandler.sync(self)
                    la_ = self._interp.adaptivePredict(self._input,417,self._ctx)
                    if la_ == 1:
                        self.state = 3979
                        self.match(Verilog2001Parser.T__20)
                        self.state = 3980
                        self.match(Verilog2001Parser.Decimal_number)
                        self.state = 3981
                        self.match(Verilog2001Parser.T__21)

             
                self.state = 3988
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,418,self._ctx)

        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx





