# Generated from Lustre.g4 by ANTLR 4.6
# encoding: utf-8
from __future__ import print_function
from antlr4 import *
from io import StringIO

def serializedATN():
    with StringIO() as buf:
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        buf.write(u"\u0150\3\2\2\2\u0144\u0145\7\t\2\2\u0145\u014a\5&\24")
        buf.write(u"\2\u0146\u0147\7\17\2\2\u0147\u0149\5&\24\2\u0148\u0146")
        buf.write(u"\3\2\2\2\u0149\u014c\3\2\2\2\u014a\u0148\3\2\2\2\u014a")
        buf.write(u"\u014b\3\2\2\2\u014b\u014d\3\2\2\2\u014c\u014a\3\2\2")
        buf.write(u"\2\u014d\u014e\7\n\2\2\u014e\u0150\3\2\2\2\u014f\u00f7")
        buf.write(u"\3\2\2\2\u014f\u00fa\3\2\2\2\u014f\u00fd\3\2\2\2\u014f")
        buf.write(u"\u00fe\3\2\2\2\u014f\u00ff\3\2\2\2\u014f\u0104\3\2\2")
        buf.write(u"\2\u014f\u0111\3\2\2\2\u014f\u011c\3\2\2\2\u014f\u011e")
        buf.write(u"\3\2\2\2\u014f\u0120\3\2\2\2\u014f\u0122\3\2\2\2\u014f")
        buf.write(u"\u0129\3\2\2\2\u014f\u0139\3\2\2\2\u014f\u0144\3\2\2")
        buf.write(u"\2\u0150\u017e\3\2\2\2\u0151\u0152\f\r\2\2\u0152\u0153")
        buf.write(u"\t\3\2\2\u0153\u017d\5&\24\16\u0154\u0155\f\f\2\2\u0155")
        buf.write(u"\u0156\t\4\2\2\u0156\u017d\5&\24\r\u0157\u0158\f\13\2")
        buf.write(u"\2\u0158\u0159\t\5\2\2\u0159\u017d\5&\24\f\u015a\u015b")
        buf.write(u"\f\n\2\2\u015b\u015c\7\61\2\2\u015c\u017d\5&\24\13\u015d")
        buf.write(u"\u015e\f\t\2\2\u015e\u015f\t\6\2\2\u015f\u017d\5&\24")
        buf.write(u"\n\u0160\u0161\f\b\2\2\u0161\u0162\7\64\2\2\u0162\u017d")
        buf.write(u"\5&\24\b\u0163\u0164\f\7\2\2\u0164\u0165\7\65\2\2\u0165")
        buf.write(u"\u017d\5&\24\7\u0166\u0167\f\24\2\2\u0167\u0168\7#\2")
        buf.write(u"\2\u0168\u017d\7<\2\2\u0169\u016a\f\23\2\2\u016a\u016b")
        buf.write(u"\7\21\2\2\u016b\u016c\7<\2\2\u016c\u016d\7$\2\2\u016d")
        buf.write(u"\u016e\5&\24\2\u016e\u016f\7\22\2\2\u016f\u017d\3\2\2")
        buf.write(u"\2\u0170\u0171\f\22\2\2\u0171\u0172\7\26\2\2\u0172\u0173")
        buf.write(u"\5&\24\2\u0173\u0174\7\27\2\2\u0174\u017d\3\2\2\2\u0175")
        buf.write(u"\u0176\f\21\2\2\u0176\u0177\7\26\2\2\u0177\u0178\5&\24")
        buf.write(u"\2\u0178\u0179\7$\2\2\u0179\u017a\5&\24\2\u017a\u017b")
        buf.write(u"\7\27\2\2\u017b\u017d\3\2\2\2\u017c\u0151\3\2\2\2\u017c")
        buf.write(u"\u0154\3\2\2\2\u017c\u0157\3\2\2\2\u017c\u015a\3\2\2")
        buf.write(u"\2\u017c\u015d\3\2\2\2\u017c\u0160\3\2\2\2\u017c\u0163")
        buf.write(u"\3\2\2\2\u017c\u0166\3\2\2\2\u017c\u0169\3\2\2\2\u017c")
        buf.write(u"\u0170\3\2\2\2\u017c\u0175\3\2\2\2\u017d\u0180\3\2\2")
        buf.write(u"\2\u017e\u017c\3\2\2\2\u017e\u017f\3\2\2\2\u017f\'\3")
        buf.write(u"\2\2\2\u0180\u017e\3\2\2\2\u0181\u0182\b\25\1\2\u0182")
        buf.write(u"\u0183\7<\2\2\u0183\u018d\3\2\2\2\u0184\u0185\f\4\2\2")
        buf.write(u"\u0185\u0186\7\26\2\2\u0186\u0187\7;\2\2\u0187\u018c")
        buf.write(u"\7\27\2\2\u0188\u0189\f\3\2\2\u0189\u018a\7#\2\2\u018a")
        buf.write(u"\u018c\7<\2\2\u018b\u0184\3\2\2\2\u018b\u0188\3\2\2\2")
        buf.write(u"\u018c\u018f\3\2\2\2\u018d\u018b\3\2\2\2\u018d\u018e")
        buf.write(u"\3\2\2\2\u018e)\3\2\2\2\u018f\u018d\3\2\2\2(-/>HNVZ^")
        buf.write(u"ckrz\u008d\u0099\u009d\u00ad\u00b5\u00b9\u00c7\u00ca")
        buf.write(u"\u00d4\u00d7\u00dd\u00e6\u00e9\u00f4\u00fa\u010b\u010e")
        buf.write(u"\u0118\u0134\u013f\u014a\u014f\u017c\u017e\u018b\u018d")
        return buf.getvalue()


class LustreParser ( Parser ):

    grammarFileName = "Lustre.g4"

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

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

    sharedContextCache = PredictionContextCache()

    literalNames = [ u"<INVALID>", u"'datatype'", u"'='", u"';'", u"'const'", 
                     u"':'", u"'node'", u"'('", u"')'", u"'returns'", u"'var'", 
                     u"'let'", u"'tel'", u"','", u"'struct'", u"'{'", u"'}'", 
                     u"'enum'", u"'int'", u"'subrange'", u"'['", u"']'", 
                     u"'of'", u"'bool'", u"'real'", u"'-'", u"'--%PROPERTY'", 
                     u"'--%REALIZABLE'", u"'--%IVC'", u"'--%MAIN'", u"'assert'", 
                     u"'floor'", u"'condact'", u"'.'", u"':='", u"'pre'", 
                     u"'not'", u"'*'", u"'/'", u"'div'", u"'mod'", u"'+'", 
                     u"'<'", u"'<='", u"'>'", u"'>='", u"'<>'", u"'and'", 
                     u"'or'", u"'xor'", u"'=>'", u"'->'", u"'if'", u"'then'", 
                     u"'else'" ]

    symbolicNames = [ u"<INVALID>", u"<INVALID>", u"<INVALID>", u"<INVALID>", 
                      u"<INVALID>", u"<INVALID>", u"<INVALID>", u"<INVALID>", 
                      u"<INVALID>", u"<INVALID>", u"<INVALID>", u"<INVALID>", 
                      u"<INVALID>", u"<INVALID>", u"<INVALID>", u"<INVALID>", 
                      u"<INVALID>", u"<INVALID>", u"<INVALID>", u"<INVALID>", 
                      u"<INVALID>", u"<INVALID>", u"<INVALID>", u"<INVALID>", 
                      u"<INVALID>", u"<INVALID>", u"<INVALID>", u"<INVALID>", 
                      u"<INVALID>", u"<INVALID>", u"<INVALID>", u"<INVALID>", 
                      u"<INVALID>", u"<INVALID>", u"<INVALID>", u"<INVALID>", 
                      u"<INVALID>", u"<INVALID>", u"<INVALID>", u"<INVALID>", 
                      u"<INVALID>", u"<INVALID>", u"<INVALID>", u"<INVALID>", 
                      u"<INVALID>", u"<INVALID>", u"<INVALID>", u"<INVALID>", 
                      u"<INVALID>", u"<INVALID>", u"<INVALID>", u"<INVALID>", 
                      u"<INVALID>", u"<INVALID>", u"<INVALID>", u"REAL", 
                      u"BOOL", u"INT", u"ID", u"WS", u"SL_COMMENT", u"ML_COMMENT", 
                      u"C_COMMENT", u"ERROR" ]

    RULE_program = 0
    RULE_datatypedef = 1
    RULE_constant = 2
    RULE_node = 3
    RULE_instrList = 4
    RULE_instr = 5
    RULE_varDeclList = 6
    RULE_varDeclGroup = 7
    RULE_topLevelType = 8
    RULE_datatype = 9
    RULE_bound = 10
    RULE_prop = 11
    RULE_realizabilityInputs = 12
    RULE_ivc = 13
    RULE_main = 14
    RULE_assertion = 15
    RULE_equation = 16
    RULE_lhs = 17
    RULE_expr = 18
    RULE_eID = 19

    ruleNames =  [ u"program", u"datatypedef", u"constant", u"node", u"instrList", 
                   u"instr", u"varDeclList", u"varDeclGroup", u"topLevelType", 
                   u"datatype", u"bound", u"prop", u"realizabilityInputs", 
                   u"ivc", u"main", u"assertion", u"equation", u"lhs", u"expr", 
                   u"eID" ]

    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
    REAL=55
    BOOL=56
    INT=57
    ID=58
    WS=59
    SL_COMMENT=60
    ML_COMMENT=61
    C_COMMENT=62
    ERROR=63

    def __init__(self, input):
        super(LustreParser, self).__init__(input)
        self.checkVersion("4.6")
        self._interp = ParserATNSimulator(self, self.atn, self.decisionsToDFA, self.sharedContextCache)
        self._predicates = None



    class ProgramContext(ParserRuleContext):

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

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

        def datatypedef(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.DatatypedefContext)
            else:
                return self.getTypedRuleContext(LustreParser.DatatypedefContext,i)


        def constant(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.ConstantContext)
            else:
                return self.getTypedRuleContext(LustreParser.ConstantContext,i)


        def node(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.NodeContext)
            else:
                return self.getTypedRuleContext(LustreParser.NodeContext,i)


        def getRuleIndex(self):
            return LustreParser.RULE_program

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




    def program(self):

        localctx = LustreParser.ProgramContext(self, self._ctx, self.state)
        self.enterRule(localctx, 0, self.RULE_program)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 45
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << LustreParser.T__0) | (1 << LustreParser.T__3) | (1 << LustreParser.T__5))) != 0):
                self.state = 43
                self._errHandler.sync(self)
                token = self._input.LA(1)
                if token in [LustreParser.T__0]:
                    self.state = 40
                    self.datatypedef()
                    pass
                elif token in [LustreParser.T__3]:
                    self.state = 41
                    self.constant()
                    pass
                elif token in [LustreParser.T__5]:
                    self.state = 42
                    self.node()
                    pass
                else:
                    raise NoViableAltException(self)

                self.state = 47
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 48
            self.match(LustreParser.EOF)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx

    class DatatypedefContext(ParserRuleContext):

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

        def ID(self):
            return self.getToken(LustreParser.ID, 0)

        def topLevelType(self):
            return self.getTypedRuleContext(LustreParser.TopLevelTypeContext,0)


        def getRuleIndex(self):
            return LustreParser.RULE_datatypedef

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




    def datatypedef(self):

        localctx = LustreParser.DatatypedefContext(self, self._ctx, self.state)
        self.enterRule(localctx, 2, self.RULE_datatypedef)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 50
            self.match(LustreParser.T__0)
            self.state = 51
            self.match(LustreParser.ID)
            self.state = 52
            self.match(LustreParser.T__1)
            self.state = 53
            self.topLevelType()
            self.state = 54
            self.match(LustreParser.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 ConstantContext(ParserRuleContext):

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

        def ID(self):
            return self.getToken(LustreParser.ID, 0)

        def expr(self):
            return self.getTypedRuleContext(LustreParser.ExprContext,0)


        def datatype(self):
            return self.getTypedRuleContext(LustreParser.DatatypeContext,0)


        def getRuleIndex(self):
            return LustreParser.RULE_constant

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




    def constant(self):

        localctx = LustreParser.ConstantContext(self, self._ctx, self.state)
        self.enterRule(localctx, 4, self.RULE_constant)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 56
            self.match(LustreParser.T__3)
            self.state = 57
            self.match(LustreParser.ID)
            self.state = 60
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==LustreParser.T__4:
                self.state = 58
                self.match(LustreParser.T__4)
                self.state = 59
                self.datatype(0)


            self.state = 62
            self.match(LustreParser.T__1)
            self.state = 63
            self.expr(0)
            self.state = 64
            self.match(LustreParser.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 NodeContext(ParserRuleContext):

        def __init__(self, parser, parent=None, invokingState=-1):
            super(LustreParser.NodeContext, self).__init__(parent, invokingState)
            self.parser = parser
            self.inp = None # VarDeclListContext
            self.outp = None # VarDeclListContext
            self.local = None # VarDeclListContext
            self.instrlst = None # InstrListContext

        def ID(self):
            return self.getToken(LustreParser.ID, 0)

        def varDeclList(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.VarDeclListContext)
            else:
                return self.getTypedRuleContext(LustreParser.VarDeclListContext,i)


        def instrList(self):
            return self.getTypedRuleContext(LustreParser.InstrListContext,0)


        def getRuleIndex(self):
            return LustreParser.RULE_node

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




    def node(self):

        localctx = LustreParser.NodeContext(self, self._ctx, self.state)
        self.enterRule(localctx, 6, self.RULE_node)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 66
            self.match(LustreParser.T__5)
            self.state = 67
            self.match(LustreParser.ID)
            self.state = 68
            self.match(LustreParser.T__6)
            self.state = 70
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==LustreParser.ID:
                self.state = 69
                localctx.inp = self.varDeclList()


            self.state = 72
            self.match(LustreParser.T__7)
            self.state = 73
            self.match(LustreParser.T__8)
            self.state = 74
            self.match(LustreParser.T__6)
            self.state = 76
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==LustreParser.ID:
                self.state = 75
                localctx.outp = self.varDeclList()


            self.state = 78
            self.match(LustreParser.T__7)
            self.state = 79
            self.match(LustreParser.T__2)
            self.state = 84
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==LustreParser.T__9:
                self.state = 80
                self.match(LustreParser.T__9)
                self.state = 81
                localctx.local = self.varDeclList()
                self.state = 82
                self.match(LustreParser.T__2)


            self.state = 86
            self.match(LustreParser.T__10)
            self.state = 88
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << LustreParser.T__6) | (1 << LustreParser.T__25) | (1 << LustreParser.T__26) | (1 << LustreParser.T__27) | (1 << LustreParser.T__28) | (1 << LustreParser.T__29) | (1 << LustreParser.ID))) != 0):
                self.state = 87
                localctx.instrlst = self.instrList()


            self.state = 90
            self.match(LustreParser.T__11)
            self.state = 92
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==LustreParser.T__2:
                self.state = 91
                self.match(LustreParser.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 InstrListContext(ParserRuleContext):

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

        def instr(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.InstrContext)
            else:
                return self.getTypedRuleContext(LustreParser.InstrContext,i)


        def getRuleIndex(self):
            return LustreParser.RULE_instrList

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




    def instrList(self):

        localctx = LustreParser.InstrListContext(self, self._ctx, self.state)
        self.enterRule(localctx, 8, self.RULE_instrList)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 95 
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while True:
                self.state = 94
                self.instr()
                self.state = 97 
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if not ((((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << LustreParser.T__6) | (1 << LustreParser.T__25) | (1 << LustreParser.T__26) | (1 << LustreParser.T__27) | (1 << LustreParser.T__28) | (1 << LustreParser.T__29) | (1 << LustreParser.ID))) != 0)):
                    break

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

    class InstrContext(ParserRuleContext):

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

        def equation(self):
            return self.getTypedRuleContext(LustreParser.EquationContext,0)


        def prop(self):
            return self.getTypedRuleContext(LustreParser.PropContext,0)


        def assertion(self):
            return self.getTypedRuleContext(LustreParser.AssertionContext,0)


        def main(self):
            return self.getTypedRuleContext(LustreParser.MainContext,0)


        def realizabilityInputs(self):
            return self.getTypedRuleContext(LustreParser.RealizabilityInputsContext,0)


        def ivc(self):
            return self.getTypedRuleContext(LustreParser.IvcContext,0)


        def getRuleIndex(self):
            return LustreParser.RULE_instr

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




    def instr(self):

        localctx = LustreParser.InstrContext(self, self._ctx, self.state)
        self.enterRule(localctx, 10, self.RULE_instr)
        try:
            self.state = 105
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [LustreParser.T__6, LustreParser.ID]:
                self.enterOuterAlt(localctx, 1)
                self.state = 99
                self.equation()
                pass
            elif token in [LustreParser.T__25]:
                self.enterOuterAlt(localctx, 2)
                self.state = 100
                self.prop()
                pass
            elif token in [LustreParser.T__29]:
                self.enterOuterAlt(localctx, 3)
                self.state = 101
                self.assertion()
                pass
            elif token in [LustreParser.T__28]:
                self.enterOuterAlt(localctx, 4)
                self.state = 102
                self.main()
                pass
            elif token in [LustreParser.T__26]:
                self.enterOuterAlt(localctx, 5)
                self.state = 103
                self.realizabilityInputs()
                pass
            elif token in [LustreParser.T__27]:
                self.enterOuterAlt(localctx, 6)
                self.state = 104
                self.ivc()
                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 VarDeclListContext(ParserRuleContext):

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

        def varDeclGroup(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.VarDeclGroupContext)
            else:
                return self.getTypedRuleContext(LustreParser.VarDeclGroupContext,i)


        def getRuleIndex(self):
            return LustreParser.RULE_varDeclList

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




    def varDeclList(self):

        localctx = LustreParser.VarDeclListContext(self, self._ctx, self.state)
        self.enterRule(localctx, 12, self.RULE_varDeclList)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 107
            self.varDeclGroup()
            self.state = 112
            self._errHandler.sync(self)
            _alt = self._interp.adaptivePredict(self._input,10,self._ctx)
            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                if _alt==1:
                    self.state = 108
                    self.match(LustreParser.T__2)
                    self.state = 109
                    self.varDeclGroup() 
                self.state = 114
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,10,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 VarDeclGroupContext(ParserRuleContext):

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

        def eID(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.EIDContext)
            else:
                return self.getTypedRuleContext(LustreParser.EIDContext,i)


        def datatype(self):
            return self.getTypedRuleContext(LustreParser.DatatypeContext,0)


        def getRuleIndex(self):
            return LustreParser.RULE_varDeclGroup

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




    def varDeclGroup(self):

        localctx = LustreParser.VarDeclGroupContext(self, self._ctx, self.state)
        self.enterRule(localctx, 14, self.RULE_varDeclGroup)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 115
            self.eID(0)
            self.state = 120
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==LustreParser.T__12:
                self.state = 116
                self.match(LustreParser.T__12)
                self.state = 117
                self.eID(0)
                self.state = 122
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 123
            self.match(LustreParser.T__4)
            self.state = 124
            self.datatype(0)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx

    class TopLevelTypeContext(ParserRuleContext):

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


        def getRuleIndex(self):
            return LustreParser.RULE_topLevelType

     
        def copyFrom(self, ctx):
            super(LustreParser.TopLevelTypeContext, self).copyFrom(ctx)



    class RecordTypeContext(TopLevelTypeContext):

        def __init__(self, parser, ctx): # actually a LustreParser.TopLevelTypeContext)
            super(LustreParser.RecordTypeContext, self).__init__(parser)
            self.copyFrom(ctx)

        def ID(self, i=None):
            if i is None:
                return self.getTokens(LustreParser.ID)
            else:
                return self.getToken(LustreParser.ID, i)
        def datatype(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.DatatypeContext)
            else:
                return self.getTypedRuleContext(LustreParser.DatatypeContext,i)


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


    class EnumTypeContext(TopLevelTypeContext):

        def __init__(self, parser, ctx): # actually a LustreParser.TopLevelTypeContext)
            super(LustreParser.EnumTypeContext, self).__init__(parser)
            self.copyFrom(ctx)

        def ID(self, i=None):
            if i is None:
                return self.getTokens(LustreParser.ID)
            else:
                return self.getToken(LustreParser.ID, i)

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


    class PlainTypeContext(TopLevelTypeContext):

        def __init__(self, parser, ctx): # actually a LustreParser.TopLevelTypeContext)
            super(LustreParser.PlainTypeContext, self).__init__(parser)
            self.copyFrom(ctx)

        def datatype(self):
            return self.getTypedRuleContext(LustreParser.DatatypeContext,0)


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



    def topLevelType(self):

        localctx = LustreParser.TopLevelTypeContext(self, self._ctx, self.state)
        self.enterRule(localctx, 16, self.RULE_topLevelType)
        self._la = 0 # Token type
        try:
            self.state = 155
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [LustreParser.T__17, LustreParser.T__18, LustreParser.T__22, LustreParser.T__23, LustreParser.ID]:
                localctx = LustreParser.PlainTypeContext(self, localctx)
                self.enterOuterAlt(localctx, 1)
                self.state = 126
                self.datatype(0)
                pass
            elif token in [LustreParser.T__13]:
                localctx = LustreParser.RecordTypeContext(self, localctx)
                self.enterOuterAlt(localctx, 2)
                self.state = 127
                self.match(LustreParser.T__13)
                self.state = 128
                self.match(LustreParser.T__14)

                self.state = 129
                self.match(LustreParser.ID)
                self.state = 130
                self.match(LustreParser.T__4)
                self.state = 131
                self.datatype(0)
                self.state = 139
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==LustreParser.T__2:
                    self.state = 133
                    self.match(LustreParser.T__2)
                    self.state = 134
                    self.match(LustreParser.ID)
                    self.state = 135
                    self.match(LustreParser.T__4)
                    self.state = 136
                    self.datatype(0)
                    self.state = 141
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 142
                self.match(LustreParser.T__15)
                pass
            elif token in [LustreParser.T__16]:
                localctx = LustreParser.EnumTypeContext(self, localctx)
                self.enterOuterAlt(localctx, 3)
                self.state = 144
                self.match(LustreParser.T__16)
                self.state = 145
                self.match(LustreParser.T__14)
                self.state = 146
                self.match(LustreParser.ID)
                self.state = 151
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==LustreParser.T__12:
                    self.state = 147
                    self.match(LustreParser.T__12)
                    self.state = 148
                    self.match(LustreParser.ID)
                    self.state = 153
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 154
                self.match(LustreParser.T__15)
                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 DatatypeContext(ParserRuleContext):

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


        def getRuleIndex(self):
            return LustreParser.RULE_datatype

     
        def copyFrom(self, ctx):
            super(LustreParser.DatatypeContext, self).copyFrom(ctx)


    class ArrayTypeContext(DatatypeContext):

        def __init__(self, parser, ctx): # actually a LustreParser.DatatypeContext)
            super(LustreParser.ArrayTypeContext, self).__init__(parser)
            self.copyFrom(ctx)

        def datatype(self):
            return self.getTypedRuleContext(LustreParser.DatatypeContext,0)

        def INT(self):
            return self.getToken(LustreParser.INT, 0)

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


    class SubrangeTypeContext(DatatypeContext):

        def __init__(self, parser, ctx): # actually a LustreParser.DatatypeContext)
            super(LustreParser.SubrangeTypeContext, self).__init__(parser)
            self.copyFrom(ctx)

        def bound(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.BoundContext)
            else:
                return self.getTypedRuleContext(LustreParser.BoundContext,i)


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


    class UserTypeContext(DatatypeContext):

        def __init__(self, parser, ctx): # actually a LustreParser.DatatypeContext)
            super(LustreParser.UserTypeContext, self).__init__(parser)
            self.copyFrom(ctx)

        def ID(self):
            return self.getToken(LustreParser.ID, 0)

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


    class PrimitiveTypeContext(DatatypeContext):

        def __init__(self, parser, ctx): # actually a LustreParser.DatatypeContext)
            super(LustreParser.PrimitiveTypeContext, self).__init__(parser)
            self.copyFrom(ctx)


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



    def datatype(self, _p=0):
        _parentctx = self._ctx
        _parentState = self.state
        localctx = LustreParser.DatatypeContext(self, self._ctx, _parentState)
        _prevctx = localctx
        _startState = 18
        self.enterRecursionRule(localctx, 18, self.RULE_datatype, _p)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 171
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [LustreParser.T__17]:
                localctx = LustreParser.PrimitiveTypeContext(self, localctx)
                self._ctx = localctx
                _prevctx = localctx

                self.state = 158
                self.match(LustreParser.T__17)
                pass
            elif token in [LustreParser.T__18]:
                localctx = LustreParser.SubrangeTypeContext(self, localctx)
                self._ctx = localctx
                _prevctx = localctx
                self.state = 159
                self.match(LustreParser.T__18)
                self.state = 160
                self.match(LustreParser.T__19)
                self.state = 161
                self.bound()
                self.state = 162
                self.match(LustreParser.T__12)
                self.state = 163
                self.bound()
                self.state = 164
                self.match(LustreParser.T__20)
                self.state = 165
                self.match(LustreParser.T__21)
                self.state = 166
                self.match(LustreParser.T__17)
                pass
            elif token in [LustreParser.T__22]:
                localctx = LustreParser.PrimitiveTypeContext(self, localctx)
                self._ctx = localctx
                _prevctx = localctx
                self.state = 168
                self.match(LustreParser.T__22)
                pass
            elif token in [LustreParser.T__23]:
                localctx = LustreParser.PrimitiveTypeContext(self, localctx)
                self._ctx = localctx
                _prevctx = localctx
                self.state = 169
                self.match(LustreParser.T__23)
                pass
            elif token in [LustreParser.ID]:
                localctx = LustreParser.UserTypeContext(self, localctx)
                self._ctx = localctx
                _prevctx = localctx
                self.state = 170
                self.match(LustreParser.ID)
                pass
            else:
                raise NoViableAltException(self)

            self._ctx.stop = self._input.LT(-1)
            self.state = 179
            self._errHandler.sync(self)
            _alt = self._interp.adaptivePredict(self._input,16,self._ctx)
            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                if _alt==1:
                    if self._parseListeners is not None:
                        self.triggerExitRuleEvent()
                    _prevctx = localctx
                    localctx = LustreParser.ArrayTypeContext(self, LustreParser.DatatypeContext(self, _parentctx, _parentState))
                    self.pushNewRecursionContext(localctx, _startState, self.RULE_datatype)
                    self.state = 173
                    if not self.precpred(self._ctx, 2):
                        from antlr4.error.Errors import FailedPredicateException
                        raise FailedPredicateException(self, "self.precpred(self._ctx, 2)")
                    self.state = 174
                    self.match(LustreParser.T__19)
                    self.state = 175
                    self.match(LustreParser.INT)
                    self.state = 176
                    self.match(LustreParser.T__20) 
                self.state = 181
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,16,self._ctx)

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

    class BoundContext(ParserRuleContext):

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

        def INT(self):
            return self.getToken(LustreParser.INT, 0)

        def getRuleIndex(self):
            return LustreParser.RULE_bound

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




    def bound(self):

        localctx = LustreParser.BoundContext(self, self._ctx, self.state)
        self.enterRule(localctx, 20, self.RULE_bound)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 183
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==LustreParser.T__24:
                self.state = 182
                self.match(LustreParser.T__24)


            self.state = 185
            self.match(LustreParser.INT)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx

    class PropContext(ParserRuleContext):

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

        def expr(self):
            return self.getTypedRuleContext(LustreParser.ExprContext,0)


        def getRuleIndex(self):
            return LustreParser.RULE_prop

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




    def prop(self):

        localctx = LustreParser.PropContext(self, self._ctx, self.state)
        self.enterRule(localctx, 22, self.RULE_prop)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 187
            self.match(LustreParser.T__25)
            self.state = 188
            self.expr(0)
            self.state = 189
            self.match(LustreParser.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 RealizabilityInputsContext(ParserRuleContext):

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

        def ID(self, i=None):
            if i is None:
                return self.getTokens(LustreParser.ID)
            else:
                return self.getToken(LustreParser.ID, i)

        def getRuleIndex(self):
            return LustreParser.RULE_realizabilityInputs

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




    def realizabilityInputs(self):

        localctx = LustreParser.RealizabilityInputsContext(self, self._ctx, self.state)
        self.enterRule(localctx, 24, self.RULE_realizabilityInputs)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 191
            self.match(LustreParser.T__26)
            self.state = 200
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==LustreParser.ID:
                self.state = 192
                self.match(LustreParser.ID)
                self.state = 197
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==LustreParser.T__12:
                    self.state = 193
                    self.match(LustreParser.T__12)
                    self.state = 194
                    self.match(LustreParser.ID)
                    self.state = 199
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)



            self.state = 202
            self.match(LustreParser.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 IvcContext(ParserRuleContext):

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

        def ID(self, i=None):
            if i is None:
                return self.getTokens(LustreParser.ID)
            else:
                return self.getToken(LustreParser.ID, i)

        def getRuleIndex(self):
            return LustreParser.RULE_ivc

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




    def ivc(self):

        localctx = LustreParser.IvcContext(self, self._ctx, self.state)
        self.enterRule(localctx, 26, self.RULE_ivc)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 204
            self.match(LustreParser.T__27)
            self.state = 213
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==LustreParser.ID:
                self.state = 205
                self.match(LustreParser.ID)
                self.state = 210
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==LustreParser.T__12:
                    self.state = 206
                    self.match(LustreParser.T__12)
                    self.state = 207
                    self.match(LustreParser.ID)
                    self.state = 212
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)



            self.state = 215
            self.match(LustreParser.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 MainContext(ParserRuleContext):

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


        def getRuleIndex(self):
            return LustreParser.RULE_main

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




    def main(self):

        localctx = LustreParser.MainContext(self, self._ctx, self.state)
        self.enterRule(localctx, 28, self.RULE_main)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 217
            self.match(LustreParser.T__28)
            self.state = 219
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            if _la==LustreParser.T__2:
                self.state = 218
                self.match(LustreParser.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 AssertionContext(ParserRuleContext):

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

        def expr(self):
            return self.getTypedRuleContext(LustreParser.ExprContext,0)


        def getRuleIndex(self):
            return LustreParser.RULE_assertion

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




    def assertion(self):

        localctx = LustreParser.AssertionContext(self, self._ctx, self.state)
        self.enterRule(localctx, 30, self.RULE_assertion)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 221
            self.match(LustreParser.T__29)
            self.state = 222
            self.expr(0)
            self.state = 223
            self.match(LustreParser.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 EquationContext(ParserRuleContext):

        def __init__(self, parser, parent=None, invokingState=-1):
            super(LustreParser.EquationContext, self).__init__(parent, invokingState)
            self.parser = parser
            self.pos1 = None # LhsContext
            self.pos2 = None # LhsContext
            self.pos3 = None # ExprContext

        def expr(self):
            return self.getTypedRuleContext(LustreParser.ExprContext,0)


        def lhs(self):
            return self.getTypedRuleContext(LustreParser.LhsContext,0)


        def getRuleIndex(self):
            return LustreParser.RULE_equation

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




    def equation(self):

        localctx = LustreParser.EquationContext(self, self._ctx, self.state)
        self.enterRule(localctx, 32, self.RULE_equation)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 231
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [LustreParser.ID]:
                self.state = 225
                localctx.pos1 = self.lhs()
                pass
            elif token in [LustreParser.T__6]:
                self.state = 226
                self.match(LustreParser.T__6)
                self.state = 228
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==LustreParser.ID:
                    self.state = 227
                    localctx.pos2 = self.lhs()


                self.state = 230
                self.match(LustreParser.T__7)
                pass
            else:
                raise NoViableAltException(self)

            self.state = 233
            self.match(LustreParser.T__1)
            self.state = 234
            localctx.pos3 = self.expr(0)
            self.state = 235
            self.match(LustreParser.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 LhsContext(ParserRuleContext):

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

        def eID(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.EIDContext)
            else:
                return self.getTypedRuleContext(LustreParser.EIDContext,i)


        def getRuleIndex(self):
            return LustreParser.RULE_lhs

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




    def lhs(self):

        localctx = LustreParser.LhsContext(self, self._ctx, self.state)
        self.enterRule(localctx, 34, self.RULE_lhs)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 237
            self.eID(0)
            self.state = 242
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==LustreParser.T__12:
                self.state = 238
                self.match(LustreParser.T__12)
                self.state = 239
                self.eID(0)
                self.state = 244
                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 ExprContext(ParserRuleContext):

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


        def getRuleIndex(self):
            return LustreParser.RULE_expr

     
        def copyFrom(self, ctx):
            super(LustreParser.ExprContext, self).copyFrom(ctx)


    class RecordExprContext(ExprContext):

        def __init__(self, parser, ctx): # actually a LustreParser.ExprContext)
            super(LustreParser.RecordExprContext, self).__init__(parser)
            self.copyFrom(ctx)

        def ID(self, i=None):
            if i is None:
                return self.getTokens(LustreParser.ID)
            else:
                return self.getToken(LustreParser.ID, i)
        def expr(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.ExprContext)
            else:
                return self.getTypedRuleContext(LustreParser.ExprContext,i)


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


    class IntExprContext(ExprContext):

        def __init__(self, parser, ctx): # actually a LustreParser.ExprContext)
            super(LustreParser.IntExprContext, self).__init__(parser)
            self.copyFrom(ctx)

        def INT(self):
            return self.getToken(LustreParser.INT, 0)

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


    class ArrayExprContext(ExprContext):

        def __init__(self, parser, ctx): # actually a LustreParser.ExprContext)
            super(LustreParser.ArrayExprContext, self).__init__(parser)
            self.copyFrom(ctx)

        def expr(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.ExprContext)
            else:
                return self.getTypedRuleContext(LustreParser.ExprContext,i)


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


    class CastExprContext(ExprContext):

        def __init__(self, parser, ctx): # actually a LustreParser.ExprContext)
            super(LustreParser.CastExprContext, self).__init__(parser)
            self.op = None # Token
            self.copyFrom(ctx)

        def expr(self):
            return self.getTypedRuleContext(LustreParser.ExprContext,0)


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


    class RealExprContext(ExprContext):

        def __init__(self, parser, ctx): # actually a LustreParser.ExprContext)
            super(LustreParser.RealExprContext, self).__init__(parser)
            self.copyFrom(ctx)

        def REAL(self):
            return self.getToken(LustreParser.REAL, 0)

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


    class IfThenElseExprContext(ExprContext):

        def __init__(self, parser, ctx): # actually a LustreParser.ExprContext)
            super(LustreParser.IfThenElseExprContext, self).__init__(parser)
            self.copyFrom(ctx)

        def expr(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.ExprContext)
            else:
                return self.getTypedRuleContext(LustreParser.ExprContext,i)


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


    class BinaryExprContext(ExprContext):

        def __init__(self, parser, ctx): # actually a LustreParser.ExprContext)
            super(LustreParser.BinaryExprContext, self).__init__(parser)
            self.op = None # Token
            self.copyFrom(ctx)

        def expr(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.ExprContext)
            else:
                return self.getTypedRuleContext(LustreParser.ExprContext,i)


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


    class PreExprContext(ExprContext):

        def __init__(self, parser, ctx): # actually a LustreParser.ExprContext)
            super(LustreParser.PreExprContext, self).__init__(parser)
            self.copyFrom(ctx)

        def expr(self):
            return self.getTypedRuleContext(LustreParser.ExprContext,0)


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


    class InitCurrExprContext(ExprContext):

        def __init__(self, parser, ctx): # actually a LustreParser.ExprContext)
            super(LustreParser.InitCurrExprContext, self).__init__(parser)
            self.op = None # Token
            self.copyFrom(ctx)

        def expr(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.ExprContext)
            else:
                return self.getTypedRuleContext(LustreParser.ExprContext,i)


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


    class NodeCallExprContext(ExprContext):

        def __init__(self, parser, ctx): # actually a LustreParser.ExprContext)
            super(LustreParser.NodeCallExprContext, self).__init__(parser)
            self.copyFrom(ctx)

        def ID(self):
            return self.getToken(LustreParser.ID, 0)
        def expr(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.ExprContext)
            else:
                return self.getTypedRuleContext(LustreParser.ExprContext,i)


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


    class RecordAccessExprContext(ExprContext):

        def __init__(self, parser, ctx): # actually a LustreParser.ExprContext)
            super(LustreParser.RecordAccessExprContext, self).__init__(parser)
            self.copyFrom(ctx)

        def expr(self):
            return self.getTypedRuleContext(LustreParser.ExprContext,0)

        def ID(self):
            return self.getToken(LustreParser.ID, 0)

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


    class NegateExprContext(ExprContext):

        def __init__(self, parser, ctx): # actually a LustreParser.ExprContext)
            super(LustreParser.NegateExprContext, self).__init__(parser)
            self.copyFrom(ctx)

        def expr(self):
            return self.getTypedRuleContext(LustreParser.ExprContext,0)


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


    class CondactExprContext(ExprContext):

        def __init__(self, parser, ctx): # actually a LustreParser.ExprContext)
            super(LustreParser.CondactExprContext, self).__init__(parser)
            self.copyFrom(ctx)

        def expr(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.ExprContext)
            else:
                return self.getTypedRuleContext(LustreParser.ExprContext,i)


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


    class NotExprContext(ExprContext):

        def __init__(self, parser, ctx): # actually a LustreParser.ExprContext)
            super(LustreParser.NotExprContext, self).__init__(parser)
            self.copyFrom(ctx)

        def expr(self):
            return self.getTypedRuleContext(LustreParser.ExprContext,0)


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


    class ArrayAccessExprContext(ExprContext):

        def __init__(self, parser, ctx): # actually a LustreParser.ExprContext)
            super(LustreParser.ArrayAccessExprContext, self).__init__(parser)
            self.copyFrom(ctx)

        def expr(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.ExprContext)
            else:
                return self.getTypedRuleContext(LustreParser.ExprContext,i)


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


    class ArrayUpdateExprContext(ExprContext):

        def __init__(self, parser, ctx): # actually a LustreParser.ExprContext)
            super(LustreParser.ArrayUpdateExprContext, self).__init__(parser)
            self.copyFrom(ctx)

        def expr(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.ExprContext)
            else:
                return self.getTypedRuleContext(LustreParser.ExprContext,i)


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


    class BoolExprContext(ExprContext):

        def __init__(self, parser, ctx): # actually a LustreParser.ExprContext)
            super(LustreParser.BoolExprContext, self).__init__(parser)
            self.copyFrom(ctx)

        def BOOL(self):
            return self.getToken(LustreParser.BOOL, 0)

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


    class TupleExprContext(ExprContext):

        def __init__(self, parser, ctx): # actually a LustreParser.ExprContext)
            super(LustreParser.TupleExprContext, self).__init__(parser)
            self.copyFrom(ctx)

        def expr(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.ExprContext)
            else:
                return self.getTypedRuleContext(LustreParser.ExprContext,i)


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


    class RecordUpdateExprContext(ExprContext):

        def __init__(self, parser, ctx): # actually a LustreParser.ExprContext)
            super(LustreParser.RecordUpdateExprContext, self).__init__(parser)
            self.copyFrom(ctx)

        def expr(self, i=None):
            if i is None:
                return self.getTypedRuleContexts(LustreParser.ExprContext)
            else:
                return self.getTypedRuleContext(LustreParser.ExprContext,i)

        def ID(self):
            return self.getToken(LustreParser.ID, 0)

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


    class IdExprContext(ExprContext):

        def __init__(self, parser, ctx): # actually a LustreParser.ExprContext)
            super(LustreParser.IdExprContext, self).__init__(parser)
            self.copyFrom(ctx)

        def ID(self):
            return self.getToken(LustreParser.ID, 0)

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



    def expr(self, _p=0):
        _parentctx = self._ctx
        _parentState = self.state
        localctx = LustreParser.ExprContext(self, self._ctx, _parentState)
        _prevctx = localctx
        _startState = 36
        self.enterRecursionRule(localctx, 36, self.RULE_expr, _p)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 333
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,33,self._ctx)
            if la_ == 1:
                localctx = LustreParser.IdExprContext(self, localctx)
                self._ctx = localctx
                _prevctx = localctx

                self.state = 246
                self.match(LustreParser.ID)
                pass

            elif la_ == 2:
                localctx = LustreParser.IntExprContext(self, localctx)
                self._ctx = localctx
                _prevctx = localctx
                self.state = 248
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if _la==LustreParser.T__24:
                    self.state = 247
                    self.match(LustreParser.T__24)


                self.state = 250
                self.match(LustreParser.INT)
                pass

            elif la_ == 3:
                localctx = LustreParser.RealExprContext(self, localctx)
                self._ctx = localctx
                _prevctx = localctx
                self.state = 251
                self.match(LustreParser.REAL)
                pass

            elif la_ == 4:
                localctx = LustreParser.BoolExprContext(self, localctx)
                self._ctx = localctx
                _prevctx = localctx
                self.state = 252
                self.match(LustreParser.BOOL)
                pass

            elif la_ == 5:
                localctx = LustreParser.CastExprContext(self, localctx)
                self._ctx = localctx
                _prevctx = localctx
                self.state = 253
                localctx.op = self._input.LT(1)
                _la = self._input.LA(1)
                if not(_la==LustreParser.T__23 or _la==LustreParser.T__30):
                    localctx.op = self._errHandler.recoverInline(self)
                else:
                    self._errHandler.reportMatch(self)
                    self.consume()
                self.state = 254
                self.match(LustreParser.T__6)
                self.state = 255
                self.expr(0)
                self.state = 256
                self.match(LustreParser.T__7)
                pass

            elif la_ == 6:
                localctx = LustreParser.NodeCallExprContext(self, localctx)
                self._ctx = localctx
                _prevctx = localctx
                self.state = 258
                self.match(LustreParser.ID)
                self.state = 259
                self.match(LustreParser.T__6)
                self.state = 268
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if (((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << LustreParser.T__6) | (1 << LustreParser.T__19) | (1 << LustreParser.T__23) | (1 << LustreParser.T__24) | (1 << LustreParser.T__30) | (1 << LustreParser.T__31) | (1 << LustreParser.T__34) | (1 << LustreParser.T__35) | (1 << LustreParser.T__51) | (1 << LustreParser.REAL) | (1 << LustreParser.BOOL) | (1 << LustreParser.INT) | (1 << LustreParser.ID))) != 0):
                    self.state = 260
                    self.expr(0)
                    self.state = 265
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)
                    while _la==LustreParser.T__12:
                        self.state = 261
                        self.match(LustreParser.T__12)
                        self.state = 262
                        self.expr(0)
                        self.state = 267
                        self._errHandler.sync(self)
                        _la = self._input.LA(1)



                self.state = 270
                self.match(LustreParser.T__7)
                pass

            elif la_ == 7:
                localctx = LustreParser.CondactExprContext(self, localctx)
                self._ctx = localctx
                _prevctx = localctx
                self.state = 271
                self.match(LustreParser.T__31)
                self.state = 272
                self.match(LustreParser.T__6)
                self.state = 273
                self.expr(0)
                self.state = 276 
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while True:
                    self.state = 274
                    self.match(LustreParser.T__12)
                    self.state = 275
                    self.expr(0)
                    self.state = 278 
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)
                    if not (_la==LustreParser.T__12):
                        break

                self.state = 280
                self.match(LustreParser.T__7)
                pass

            elif la_ == 8:
                localctx = LustreParser.PreExprContext(self, localctx)
                self._ctx = localctx
                _prevctx = localctx
                self.state = 282
                self.match(LustreParser.T__34)
                self.state = 283
                self.expr(14)
                pass

            elif la_ == 9:
                localctx = LustreParser.NotExprContext(self, localctx)
                self._ctx = localctx
                _prevctx = localctx
                self.state = 284
                self.match(LustreParser.T__35)
                self.state = 285
                self.expr(13)
                pass

            elif la_ == 10:
                localctx = LustreParser.NegateExprContext(self, localctx)
                self._ctx = localctx
                _prevctx = localctx
                self.state = 286
                self.match(LustreParser.T__24)
                self.state = 287
                self.expr(12)
                pass

            elif la_ == 11:
                localctx = LustreParser.IfThenElseExprContext(self, localctx)
                self._ctx = localctx
                _prevctx = localctx
                self.state = 288
                self.match(LustreParser.T__51)
                self.state = 289
                self.expr(0)
                self.state = 290
                self.match(LustreParser.T__52)
                self.state = 291
                self.expr(0)
                self.state = 292
                self.match(LustreParser.T__53)
                self.state = 293
                self.expr(4)
                pass

            elif la_ == 12:
                localctx = LustreParser.RecordExprContext(self, localctx)
                self._ctx = localctx
                _prevctx = localctx
                self.state = 295
                self.match(LustreParser.ID)
                self.state = 296
                self.match(LustreParser.T__14)
                self.state = 297
                self.match(LustreParser.ID)
                self.state = 298
                self.match(LustreParser.T__1)
                self.state = 299
                self.expr(0)
                self.state = 306
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==LustreParser.T__2:
                    self.state = 300
                    self.match(LustreParser.T__2)
                    self.state = 301
                    self.match(LustreParser.ID)
                    self.state = 302
                    self.match(LustreParser.T__1)
                    self.state = 303
                    self.expr(0)
                    self.state = 308
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 309
                self.match(LustreParser.T__15)
                pass

            elif la_ == 13:
                localctx = LustreParser.ArrayExprContext(self, localctx)
                self._ctx = localctx
                _prevctx = localctx
                self.state = 311
                self.match(LustreParser.T__19)
                self.state = 312
                self.expr(0)
                self.state = 317
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==LustreParser.T__12:
                    self.state = 313
                    self.match(LustreParser.T__12)
                    self.state = 314
                    self.expr(0)
                    self.state = 319
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 320
                self.match(LustreParser.T__20)
                pass

            elif la_ == 14:
                localctx = LustreParser.TupleExprContext(self, localctx)
                self._ctx = localctx
                _prevctx = localctx
                self.state = 322
                self.match(LustreParser.T__6)
                self.state = 323
                self.expr(0)
                self.state = 328
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                while _la==LustreParser.T__12:
                    self.state = 324
                    self.match(LustreParser.T__12)
                    self.state = 325
                    self.expr(0)
                    self.state = 330
                    self._errHandler.sync(self)
                    _la = self._input.LA(1)

                self.state = 331
                self.match(LustreParser.T__7)
                pass


            self._ctx.stop = self._input.LT(-1)
            self.state = 380
            self._errHandler.sync(self)
            _alt = self._interp.adaptivePredict(self._input,35,self._ctx)
            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                if _alt==1:
                    if self._parseListeners is not None:
                        self.triggerExitRuleEvent()
                    _prevctx = localctx
                    self.state = 378
                    self._errHandler.sync(self)
                    la_ = self._interp.adaptivePredict(self._input,34,self._ctx)
                    if la_ == 1:
                        localctx = LustreParser.BinaryExprContext(self, LustreParser.ExprContext(self, _parentctx, _parentState))
                        self.pushNewRecursionContext(localctx, _startState, self.RULE_expr)
                        self.state = 335
                        if not self.precpred(self._ctx, 11):
                            from antlr4.error.Errors import FailedPredicateException
                            raise FailedPredicateException(self, "self.precpred(self._ctx, 11)")
                        self.state = 336
                        localctx.op = self._input.LT(1)
                        _la = self._input.LA(1)
                        if not((((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << LustreParser.T__36) | (1 << LustreParser.T__37) | (1 << LustreParser.T__38) | (1 << LustreParser.T__39))) != 0)):
                            localctx.op = self._errHandler.recoverInline(self)
                        else:
                            self._errHandler.reportMatch(self)
                            self.consume()
                        self.state = 337
                        self.expr(12)
                        pass

                    elif la_ == 2:
                        localctx = LustreParser.BinaryExprContext(self, LustreParser.ExprContext(self, _parentctx, _parentState))
                        self.pushNewRecursionContext(localctx, _startState, self.RULE_expr)
                        self.state = 338
                        if not self.precpred(self._ctx, 10):
                            from antlr4.error.Errors import FailedPredicateException
                            raise FailedPredicateException(self, "self.precpred(self._ctx, 10)")
                        self.state = 339
                        localctx.op = self._input.LT(1)
                        _la = self._input.LA(1)
                        if not(_la==LustreParser.T__24 or _la==LustreParser.T__40):
                            localctx.op = self._errHandler.recoverInline(self)
                        else:
                            self._errHandler.reportMatch(self)
                            self.consume()
                        self.state = 340
                        self.expr(11)
                        pass

                    elif la_ == 3:
                        localctx = LustreParser.BinaryExprContext(self, LustreParser.ExprContext(self, _parentctx, _parentState))
                        self.pushNewRecursionContext(localctx, _startState, self.RULE_expr)
                        self.state = 341
                        if not self.precpred(self._ctx, 9):
                            from antlr4.error.Errors import FailedPredicateException
                            raise FailedPredicateException(self, "self.precpred(self._ctx, 9)")
                        self.state = 342
                        localctx.op = self._input.LT(1)
                        _la = self._input.LA(1)
                        if not((((_la) & ~0x3f) == 0 and ((1 << _la) & ((1 << LustreParser.T__1) | (1 << LustreParser.T__41) | (1 << LustreParser.T__42) | (1 << LustreParser.T__43) | (1 << LustreParser.T__44) | (1 << LustreParser.T__45))) != 0)):
                            localctx.op = self._errHandler.recoverInline(self)
                        else:
                            self._errHandler.reportMatch(self)
                            self.consume()
                        self.state = 343
                        self.expr(10)
                        pass

                    elif la_ == 4:
                        localctx = LustreParser.BinaryExprContext(self, LustreParser.ExprContext(self, _parentctx, _parentState))
                        self.pushNewRecursionContext(localctx, _startState, self.RULE_expr)
                        self.state = 344
                        if not self.precpred(self._ctx, 8):
                            from antlr4.error.Errors import FailedPredicateException
                            raise FailedPredicateException(self, "self.precpred(self._ctx, 8)")
                        self.state = 345
                        localctx.op = self.match(LustreParser.T__46)
                        self.state = 346
                        self.expr(9)
                        pass

                    elif la_ == 5:
                        localctx = LustreParser.BinaryExprContext(self, LustreParser.ExprContext(self, _parentctx, _parentState))
                        self.pushNewRecursionContext(localctx, _startState, self.RULE_expr)
                        self.state = 347
                        if not self.precpred(self._ctx, 7):
                            from antlr4.error.Errors import FailedPredicateException
                            raise FailedPredicateException(self, "self.precpred(self._ctx, 7)")
                        self.state = 348
                        localctx.op = self._input.LT(1)
                        _la = self._input.LA(1)
                        if not(_la==LustreParser.T__47 or _la==LustreParser.T__48):
                            localctx.op = self._errHandler.recoverInline(self)
                        else:
                            self._errHandler.reportMatch(self)
                            self.consume()
                        self.state = 349
                        self.expr(8)
                        pass

                    elif la_ == 6:
                        localctx = LustreParser.BinaryExprContext(self, LustreParser.ExprContext(self, _parentctx, _parentState))
                        self.pushNewRecursionContext(localctx, _startState, self.RULE_expr)
                        self.state = 350
                        if not self.precpred(self._ctx, 6):
                            from antlr4.error.Errors import FailedPredicateException
                            raise FailedPredicateException(self, "self.precpred(self._ctx, 6)")
                        self.state = 351
                        localctx.op = self.match(LustreParser.T__49)
                        self.state = 352
                        self.expr(6)
                        pass

                    elif la_ == 7:
                        localctx = LustreParser.InitCurrExprContext(self, LustreParser.ExprContext(self, _parentctx, _parentState))
                        self.pushNewRecursionContext(localctx, _startState, self.RULE_expr)
                        self.state = 353
                        if not self.precpred(self._ctx, 5):
                            from antlr4.error.Errors import FailedPredicateException
                            raise FailedPredicateException(self, "self.precpred(self._ctx, 5)")
                        self.state = 354
                        localctx.op = self.match(LustreParser.T__50)
                        self.state = 355
                        self.expr(5)
                        pass

                    elif la_ == 8:
                        localctx = LustreParser.RecordAccessExprContext(self, LustreParser.ExprContext(self, _parentctx, _parentState))
                        self.pushNewRecursionContext(localctx, _startState, self.RULE_expr)
                        self.state = 356
                        if not self.precpred(self._ctx, 18):
                            from antlr4.error.Errors import FailedPredicateException
                            raise FailedPredicateException(self, "self.precpred(self._ctx, 18)")
                        self.state = 357
                        self.match(LustreParser.T__32)
                        self.state = 358
                        self.match(LustreParser.ID)
                        pass

                    elif la_ == 9:
                        localctx = LustreParser.RecordUpdateExprContext(self, LustreParser.ExprContext(self, _parentctx, _parentState))
                        self.pushNewRecursionContext(localctx, _startState, self.RULE_expr)
                        self.state = 359
                        if not self.precpred(self._ctx, 17):
                            from antlr4.error.Errors import FailedPredicateException
                            raise FailedPredicateException(self, "self.precpred(self._ctx, 17)")
                        self.state = 360
                        self.match(LustreParser.T__14)
                        self.state = 361
                        self.match(LustreParser.ID)
                        self.state = 362
                        self.match(LustreParser.T__33)
                        self.state = 363
                        self.expr(0)
                        self.state = 364
                        self.match(LustreParser.T__15)
                        pass

                    elif la_ == 10:
                        localctx = LustreParser.ArrayAccessExprContext(self, LustreParser.ExprContext(self, _parentctx, _parentState))
                        self.pushNewRecursionContext(localctx, _startState, self.RULE_expr)
                        self.state = 366
                        if not self.precpred(self._ctx, 16):
                            from antlr4.error.Errors import FailedPredicateException
                            raise FailedPredicateException(self, "self.precpred(self._ctx, 16)")
                        self.state = 367
                        self.match(LustreParser.T__19)
                        self.state = 368
                        self.expr(0)
                        self.state = 369
                        self.match(LustreParser.T__20)
                        pass

                    elif la_ == 11:
                        localctx = LustreParser.ArrayUpdateExprContext(self, LustreParser.ExprContext(self, _parentctx, _parentState))
                        self.pushNewRecursionContext(localctx, _startState, self.RULE_expr)
                        self.state = 371
                        if not self.precpred(self._ctx, 15):
                            from antlr4.error.Errors import FailedPredicateException
                            raise FailedPredicateException(self, "self.precpred(self._ctx, 15)")
                        self.state = 372
                        self.match(LustreParser.T__19)
                        self.state = 373
                        self.expr(0)
                        self.state = 374
                        self.match(LustreParser.T__33)
                        self.state = 375
                        self.expr(0)
                        self.state = 376
                        self.match(LustreParser.T__20)
                        pass

             
                self.state = 382
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,35,self._ctx)

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

    class EIDContext(ParserRuleContext):

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


        def getRuleIndex(self):
            return LustreParser.RULE_eID

     
        def copyFrom(self, ctx):
            super(LustreParser.EIDContext, self).copyFrom(ctx)


    class BaseEIDContext(EIDContext):

        def __init__(self, parser, ctx): # actually a LustreParser.EIDContext)
            super(LustreParser.BaseEIDContext, self).__init__(parser)
            self.copyFrom(ctx)

        def ID(self):
            return self.getToken(LustreParser.ID, 0)

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


    class ArrayEIDContext(EIDContext):

        def __init__(self, parser, ctx): # actually a LustreParser.EIDContext)
            super(LustreParser.ArrayEIDContext, self).__init__(parser)
            self.copyFrom(ctx)

        def eID(self):
            return self.getTypedRuleContext(LustreParser.EIDContext,0)

        def INT(self):
            return self.getToken(LustreParser.INT, 0)

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


    class RecordEIDContext(EIDContext):

        def __init__(self, parser, ctx): # actually a LustreParser.EIDContext)
            super(LustreParser.RecordEIDContext, self).__init__(parser)
            self.copyFrom(ctx)

        def eID(self):
            return self.getTypedRuleContext(LustreParser.EIDContext,0)

        def ID(self):
            return self.getToken(LustreParser.ID, 0)

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



    def eID(self, _p=0):
        _parentctx = self._ctx
        _parentState = self.state
        localctx = LustreParser.EIDContext(self, self._ctx, _parentState)
        _prevctx = localctx
        _startState = 38
        self.enterRecursionRule(localctx, 38, self.RULE_eID, _p)
        try:
            self.enterOuterAlt(localctx, 1)
            localctx = LustreParser.BaseEIDContext(self, localctx)
            self._ctx = localctx
            _prevctx = localctx

            self.state = 384
            self.match(LustreParser.ID)
            self._ctx.stop = self._input.LT(-1)
            self.state = 395
            self._errHandler.sync(self)
            _alt = self._interp.adaptivePredict(self._input,37,self._ctx)
            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
                if _alt==1:
                    if self._parseListeners is not None:
                        self.triggerExitRuleEvent()
                    _prevctx = localctx
                    self.state = 393
                    self._errHandler.sync(self)
                    la_ = self._interp.adaptivePredict(self._input,36,self._ctx)
                    if la_ == 1:
                        localctx = LustreParser.ArrayEIDContext(self, LustreParser.EIDContext(self, _parentctx, _parentState))
                        self.pushNewRecursionContext(localctx, _startState, self.RULE_eID)
                        self.state = 386
                        if not self.precpred(self._ctx, 2):
                            from antlr4.error.Errors import FailedPredicateException
                            raise FailedPredicateException(self, "self.precpred(self._ctx, 2)")
                        self.state = 387
                        self.match(LustreParser.T__19)
                        self.state = 388
                        self.match(LustreParser.INT)
                        self.state = 389
                        self.match(LustreParser.T__20)
                        pass

                    elif la_ == 2:
                        localctx = LustreParser.RecordEIDContext(self, LustreParser.EIDContext(self, _parentctx, _parentState))
                        self.pushNewRecursionContext(localctx, _startState, self.RULE_eID)
                        self.state = 390
                        if not self.precpred(self._ctx, 1):
                            from antlr4.error.Errors import FailedPredicateException
                            raise FailedPredicateException(self, "self.precpred(self._ctx, 1)")
                        self.state = 391
                        self.match(LustreParser.T__32)
                        self.state = 392
                        self.match(LustreParser.ID)
                        pass

             
                self.state = 397
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,37,self._ctx)

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



    def sempred(self, localctx, ruleIndex, predIndex):
        if self._predicates == None:
            self._predicates = dict()
        self._predicates[9] = self.datatype_sempred
        self._predicates[18] = self.expr_sempred
        self._predicates[19] = self.eID_sempred
        pred = self._predicates.get(ruleIndex, None)
        if pred is None:
            raise Exception("No predicate with index:" + str(ruleIndex))
        else:
            return pred(localctx, predIndex)

    def datatype_sempred(self, localctx, predIndex):
            if predIndex == 0:
                return self.precpred(self._ctx, 2)
         

    def expr_sempred(self, localctx, predIndex):
            if predIndex == 1:
                return self.precpred(self._ctx, 11)
         

            if predIndex == 2:
                return self.precpred(self._ctx, 10)
         

            if predIndex == 3:
                return self.precpred(self._ctx, 9)
         

            if predIndex == 4:
                return self.precpred(self._ctx, 8)
         

            if predIndex == 5:
                return self.precpred(self._ctx, 7)
         

            if predIndex == 6:
                return self.precpred(self._ctx, 6)
         

            if predIndex == 7:
                return self.precpred(self._ctx, 5)
         

            if predIndex == 8:
                return self.precpred(self._ctx, 18)
         

            if predIndex == 9:
                return self.precpred(self._ctx, 17)
         

            if predIndex == 10:
                return self.precpred(self._ctx, 16)
         

            if predIndex == 11:
                return self.precpred(self._ctx, 15)
         

    def eID_sempred(self, localctx, predIndex):
            if predIndex == 12:
                return self.precpred(self._ctx, 2)
         

            if predIndex == 13:
                return self.precpred(self._ctx, 1)
         




