'''Python abstract syntax node definitions

This file is automatically generated by Tools/compiler/astgen.py
'''
from __future__ import absolute_import
from olo.compat import items_list

from olo.libs.compiler.consts import CO_VARARGS, CO_VARKEYWORDS


def flatten(seq):
    l = []
    for e in seq:
        if isinstance(e, (list, tuple)):
            for e in flatten(e):
                l.append(e)
        else:
            l.append(e)
    return l


def flatten_nodes(seq):
    return [n for n in flatten(seq) if isinstance(n, Node)]


nodes = {}


class Node:
    '''Abstract base class for ast nodes.'''
    def getChildren(self):
        pass  # implemented by subclasses

    def __iter__(self):
        for n in self.getChildren():
            yield n

    def asList(self):  # for backwards compatibility
        return self.getChildren()

    def getChildNodes(self):
        pass  # implemented by subclasses


class EmptyNode(Node):
    pass


class Expression(Node):
    # Expression is an artificial node class to support 'eval'
    nodes['expression'] = 'Expression'

    def __init__(self, node):
        self.node = node

    def getChildren(self):
        return self.node,

    def getChildNodes(self):
        return self.node,

    def __repr__(self):
        return 'Expression(%s)' % (repr(self.node))


class Add(Node):
    def __init__(self, leftright, lineno=None):
        self.left = leftright[0]
        self.right = leftright[1]
        self.lineno = lineno

    def getChildren(self):
        return self.left, self.right

    def getChildNodes(self):
        return self.left, self.right

    def __repr__(self):
        return 'Add((%s, %s))' % (repr(self.left), repr(self.right))


class And(Node):
    def __init__(self, nodes, lineno=None):
        self.nodes = nodes
        self.lineno = lineno

    def getChildren(self):
        return tuple(flatten(self.nodes))

    def getChildNodes(self):
        nodelist = []
        nodelist.extend(flatten_nodes(self.nodes))
        return tuple(nodelist)

    def __repr__(self):
        return 'And(%s)' % (repr(self.nodes),)


class AssAttr(Node):
    def __init__(self, expr, attrname, flags, lineno=None):
        self.expr = expr
        self.attrname = attrname
        self.flags = flags
        self.lineno = lineno

    def getChildren(self):
        return self.expr, self.attrname, self.flags

    def getChildNodes(self):
        return self.expr,

    def __repr__(self):
        return 'AssAttr(%s, %s, %s)' % (repr(self.expr), repr(self.attrname),
                                        repr(self.flags))


class AssList(Node):
    def __init__(self, nodes, lineno=None):
        self.nodes = nodes
        self.lineno = lineno

    def getChildren(self):
        return tuple(flatten(self.nodes))

    def getChildNodes(self):
        nodelist = []
        nodelist.extend(flatten_nodes(self.nodes))
        return tuple(nodelist)

    def __repr__(self):
        return 'AssList(%s)' % (repr(self.nodes),)


class AssName(Node):
    def __init__(self, name, flags, lineno=None):
        self.name = name
        self.flags = flags
        self.lineno = lineno

    def getChildren(self):
        return self.name, self.flags

    def getChildNodes(self):
        return ()

    def __repr__(self):
        return 'AssName(%s, %s)' % (repr(self.name), repr(self.flags))


class AssTuple(Node):
    def __init__(self, nodes, lineno=None):
        self.nodes = nodes
        self.lineno = lineno

    def getChildren(self):
        return tuple(flatten(self.nodes))

    def getChildNodes(self):
        nodelist = []
        nodelist.extend(flatten_nodes(self.nodes))
        return tuple(nodelist)

    def __repr__(self):
        return 'AssTuple(%s)' % (repr(self.nodes),)


class Assert(Node):
    def __init__(self, test, fail, lineno=None):
        self.test = test
        self.fail = fail
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.append(self.test)
        children.append(self.fail)
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.append(self.test)
        if self.fail is not None:
            nodelist.append(self.fail)
        return tuple(nodelist)

    def __repr__(self):
        return 'Assert(%s, %s)' % (repr(self.test), repr(self.fail))


class Assign(Node):
    def __init__(self, nodes, expr, lineno=None):
        self.nodes = nodes
        self.expr = expr
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.extend(flatten(self.nodes))
        children.append(self.expr)
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.extend(flatten_nodes(self.nodes))
        nodelist.append(self.expr)
        return tuple(nodelist)

    def __repr__(self):
        return 'Assign(%s, %s)' % (repr(self.nodes), repr(self.expr))


class AugAssign(Node):
    def __init__(self, node, op, expr, lineno=None):
        self.node = node
        self.op = op
        self.expr = expr
        self.lineno = lineno

    def getChildren(self):
        return self.node, self.op, self.expr

    def getChildNodes(self):
        return self.node, self.expr

    def __repr__(self):
        return 'AugAssign(%s, %s, %s)' % (
            repr(self.node), repr(self.op), repr(self.expr))


class Backquote(Node):
    def __init__(self, expr, lineno=None):
        self.expr = expr
        self.lineno = lineno

    def getChildren(self):
        return self.expr,

    def getChildNodes(self):
        return self.expr,

    def __repr__(self):
        return 'Backquote(%s)' % (repr(self.expr),)


class Bitand(Node):
    def __init__(self, nodes, lineno=None):
        self.nodes = nodes
        self.lineno = lineno

    def getChildren(self):
        return tuple(flatten(self.nodes))

    def getChildNodes(self):
        nodelist = []
        nodelist.extend(flatten_nodes(self.nodes))
        return tuple(nodelist)

    def __repr__(self):
        return 'Bitand(%s)' % (repr(self.nodes),)


class Bitor(Node):
    def __init__(self, nodes, lineno=None):
        self.nodes = nodes
        self.lineno = lineno

    def getChildren(self):
        return tuple(flatten(self.nodes))

    def getChildNodes(self):
        nodelist = []
        nodelist.extend(flatten_nodes(self.nodes))
        return tuple(nodelist)

    def __repr__(self):
        return 'Bitor(%s)' % (repr(self.nodes),)


class Bitxor(Node):
    def __init__(self, nodes, lineno=None):
        self.nodes = nodes
        self.lineno = lineno

    def getChildren(self):
        return tuple(flatten(self.nodes))

    def getChildNodes(self):
        nodelist = []
        nodelist.extend(flatten_nodes(self.nodes))
        return tuple(nodelist)

    def __repr__(self):
        return 'Bitxor(%s)' % (repr(self.nodes),)


class Break(Node):
    def __init__(self, lineno=None):
        self.lineno = lineno

    def getChildren(self):
        return ()

    def getChildNodes(self):
        return ()

    def __repr__(self):
        return 'Break()'


class CallFunc(Node):
    def __init__(
            self, node, args,
            star_args=None, dstar_args=None, lineno=None):
        self.node = node
        self.args = args
        self.star_args = star_args
        self.dstar_args = dstar_args
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.append(self.node)
        children.extend(flatten(self.args))
        children.append(self.star_args)
        children.append(self.dstar_args)
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.append(self.node)
        nodelist.extend(flatten_nodes(self.args))
        if self.star_args is not None:
            nodelist.append(self.star_args)
        if self.dstar_args is not None:
            nodelist.append(self.dstar_args)
        return tuple(nodelist)

    def __repr__(self):
        return 'CallFunc(%s, %s, %s, %s)' % (
            repr(self.node), repr(self.args),
            repr(self.star_args), repr(self.dstar_args))


class Class(Node):
    def __init__(self, name, bases, doc, code,
                 decorators=None, lineno=None):
        self.name = name
        self.bases = bases
        self.doc = doc
        self.code = code
        self.decorators = decorators
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.append(self.name)
        children.extend(flatten(self.bases))
        children.append(self.doc)
        children.append(self.code)
        children.append(self.decorators)
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.extend(flatten_nodes(self.bases))
        nodelist.append(self.code)
        if self.decorators is not None:
            nodelist.append(self.decorators)
        return tuple(nodelist)

    def __repr__(self):
        return 'Class(%s, %s, %s, %s, %s)' % (
            repr(self.name), repr(self.bases), repr(self.doc),
            repr(self.code), repr(self.decorators))


class Compare(Node):
    def __init__(self, expr, ops, lineno=None):
        self.expr = expr
        self.ops = ops
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.append(self.expr)
        children.extend(flatten(self.ops))
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.append(self.expr)
        nodelist.extend(flatten_nodes(self.ops))
        return tuple(nodelist)

    def __repr__(self):
        return 'Compare(%s, %s)' % (repr(self.expr), repr(self.ops))


class Const(Node):
    def __init__(self, value, lineno=None):
        self.value = value
        self.lineno = lineno

    def getChildren(self):
        return self.value,

    def getChildNodes(self):
        return ()

    def __repr__(self):
        return 'Const(%s)' % (repr(self.value),)


class Continue(Node):
    def __init__(self, lineno=None):
        self.lineno = lineno

    def getChildren(self):
        return ()

    def getChildNodes(self):
        return ()

    def __repr__(self):
        return 'Continue()'


class Decorators(Node):
    def __init__(self, nodes, lineno=None):
        self.nodes = nodes
        self.lineno = lineno

    def getChildren(self):
        return tuple(flatten(self.nodes))

    def getChildNodes(self):
        nodelist = []
        nodelist.extend(flatten_nodes(self.nodes))
        return tuple(nodelist)

    def __repr__(self):
        return 'Decorators(%s)' % (repr(self.nodes),)


class Dict(Node):
    def __init__(self, items, lineno=None):
        self.items = items
        self.lineno = lineno

    def getChildren(self):
        return tuple(flatten(self.items))

    def getChildNodes(self):
        nodelist = []
        nodelist.extend(flatten_nodes(self.items))
        return tuple(nodelist)

    def __repr__(self):
        return 'Dict(%s)' % (repr(self.items),)


class Discard(Node):
    def __init__(self, expr, lineno=None):
        self.expr = expr
        self.lineno = lineno

    def getChildren(self):
        return self.expr,

    def getChildNodes(self):
        return self.expr,

    def __repr__(self):
        return 'Discard(%s)' % (repr(self.expr),)


class Div(Node):
    def __init__(self, leftright, lineno=None):
        self.left = leftright[0]
        self.right = leftright[1]
        self.lineno = lineno

    def getChildren(self):
        return self.left, self.right

    def getChildNodes(self):
        return self.left, self.right

    def __repr__(self):
        return 'Div((%s, %s))' % (repr(self.left), repr(self.right))


class Ellipsis(Node):
    def __init__(self, lineno=None):
        self.lineno = lineno

    def getChildren(self):
        return ()

    def getChildNodes(self):
        return ()

    def __repr__(self):
        return 'Ellipsis()'


class Exec(Node):
    def __init__(self, expr, locals, globals, lineno=None):
        self.expr = expr
        self.locals = locals
        self.globals = globals
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.append(self.expr)
        children.append(self.locals)
        children.append(self.globals)
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.append(self.expr)
        if self.locals is not None:
            nodelist.append(self.locals)
        if self.globals is not None:
            nodelist.append(self.globals)
        return tuple(nodelist)

    def __repr__(self):
        return 'Exec(%s, %s, %s)' % (repr(self.expr), repr(self.locals),
                                     repr(self.globals))


class FloorDiv(Node):
    def __init__(self, leftright, lineno=None):
        self.left = leftright[0]
        self.right = leftright[1]
        self.lineno = lineno

    def getChildren(self):
        return self.left, self.right

    def getChildNodes(self):
        return self.left, self.right

    def __repr__(self):
        return 'FloorDiv((%s, %s))' % (repr(self.left), repr(self.right))


class For(Node):
    def __init__(self, assign, list, body, else_, lineno=None):
        self.assign = assign
        self.list = list
        self.body = body
        self.else_ = else_
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.append(self.assign)
        children.append(self.list)
        children.append(self.body)
        children.append(self.else_)
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.append(self.assign)
        nodelist.append(self.list)
        nodelist.append(self.body)
        if self.else_ is not None:
            nodelist.append(self.else_)
        return tuple(nodelist)

    def __repr__(self):
        return 'For(%s, %s, %s, %s)' % (
            repr(self.assign), repr(self.list), repr(self.body),
            repr(self.else_))


class From(Node):
    def __init__(self, modname, names, level, lineno=None):
        self.modname = modname
        self.names = names
        self.level = level
        self.lineno = lineno

    def getChildren(self):
        return self.modname, self.names, self.level

    def getChildNodes(self):
        return ()

    def __repr__(self):
        return 'From(%s, %s, %s)' % (
            repr(self.modname), repr(self.names), repr(self.level))


class Function(Node):
    def __init__(self, decorators, name, argnames, defaults,
                 flags, doc, code, lineno=None):
        self.decorators = decorators
        self.name = name
        self.argnames = argnames
        self.defaults = defaults
        self.flags = flags
        self.doc = doc
        self.code = code
        self.lineno = lineno
        self.varargs = self.kwargs = None
        if flags & CO_VARARGS:
            self.varargs = 1
        if flags & CO_VARKEYWORDS:
            self.kwargs = 1

    def getChildren(self):
        children = []
        children.append(self.decorators)
        children.append(self.name)
        children.append(self.argnames)
        children.extend(flatten(self.defaults))
        children.append(self.flags)
        children.append(self.doc)
        children.append(self.code)
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        if self.decorators is not None:
            nodelist.append(self.decorators)
        nodelist.extend(flatten_nodes(self.defaults))
        nodelist.append(self.code)
        return tuple(nodelist)

    def __repr__(self):
        return 'Function(%s, %s, %s, %s, %s, %s, %s)' % (
            repr(self.decorators), repr(self.name),
            repr(self.argnames), repr(self.defaults),
            repr(self.flags), repr(self.doc), repr(self.code))


class GenExpr(Node):
    def __init__(self, code, lineno=None):
        self.code = code
        self.lineno = lineno
        self.argnames = ['.0']
        self.varargs = self.kwargs = None

    def getChildren(self):
        return self.code,

    def getChildNodes(self):
        return self.code,

    def __repr__(self):
        return 'GenExpr(%s)' % (repr(self.code),)


class GenExprFor(Node):
    def __init__(self, assign, iter, ifs, lineno=None):
        self.assign = assign
        self.iter = iter
        self.ifs = ifs
        self.lineno = lineno
        self.is_outmost = False

    def getChildren(self):
        children = []
        children.append(self.assign)
        children.append(self.iter)
        children.extend(flatten(self.ifs))
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.append(self.assign)
        nodelist.append(self.iter)
        nodelist.extend(flatten_nodes(self.ifs))
        return tuple(nodelist)

    def __repr__(self):
        return 'GenExprFor(%s, %s, %s)' % (
            repr(self.assign), repr(self.iter), repr(self.ifs))


class GenExprIf(Node):
    def __init__(self, test, lineno=None):
        self.test = test
        self.lineno = lineno

    def getChildren(self):
        return self.test,

    def getChildNodes(self):
        return self.test,

    def __repr__(self):
        return 'GenExprIf(%s)' % (repr(self.test),)


class GenExprInner(Node):
    def __init__(self, expr, quals, lineno=None):
        self.expr = expr
        self.quals = quals
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.append(self.expr)
        children.extend(flatten(self.quals))
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.append(self.expr)
        nodelist.extend(flatten_nodes(self.quals))
        return tuple(nodelist)

    def __repr__(self):
        return 'GenExprInner(%s, %s)' % (repr(self.expr), repr(self.quals))


class Getattr(Node):
    def __init__(self, expr, attrname, lineno=None):
        self.expr = expr
        self.attrname = attrname
        self.lineno = lineno

    def getChildren(self):
        return self.expr, self.attrname

    def getChildNodes(self):
        return self.expr,

    def __repr__(self):
        return 'Getattr(%s, %s)' % (repr(self.expr), repr(self.attrname))


class Global(Node):
    def __init__(self, names, lineno=None):
        self.names = names
        self.lineno = lineno

    def getChildren(self):
        return self.names,

    def getChildNodes(self):
        return ()

    def __repr__(self):
        return 'Global(%s)' % (repr(self.names),)


class If(Node):
    def __init__(self, tests, else_, lineno=None):
        self.tests = tests
        self.else_ = else_
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.extend(flatten(self.tests))
        children.append(self.else_)
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.extend(flatten_nodes(self.tests))
        if self.else_ is not None:
            nodelist.append(self.else_)
        return tuple(nodelist)

    def __repr__(self):
        return 'If(%s, %s)' % (repr(self.tests), repr(self.else_))


class IfExp(Node):
    def __init__(self, test, then, else_, lineno=None):
        self.test = test
        self.then = then
        self.else_ = else_
        self.lineno = lineno

    def getChildren(self):
        return self.test, self.then, self.else_

    def getChildNodes(self):
        return self.test, self.then, self.else_

    def __repr__(self):
        return 'IfExp(%s, %s, %s)' % (repr(self.test), repr(self.then),
                                      repr(self.else_))


class Import(Node):
    def __init__(self, names, lineno=None):
        self.names = names
        self.lineno = lineno

    def getChildren(self):
        return self.names,

    def getChildNodes(self):
        return ()

    def __repr__(self):
        return 'Import(%s)' % (repr(self.names),)


class Invert(Node):
    def __init__(self, expr, lineno=None):
        self.expr = expr
        self.lineno = lineno

    def getChildren(self):
        return self.expr,

    def getChildNodes(self):
        return self.expr,

    def __repr__(self):
        return 'Invert(%s)' % (repr(self.expr),)


class Keyword(Node):
    def __init__(self, name, expr, lineno=None):
        self.name = name
        self.expr = expr
        self.lineno = lineno

    def getChildren(self):
        return self.name, self.expr

    def getChildNodes(self):
        return self.expr,

    def __repr__(self):
        return 'Keyword(%s, %s)' % (repr(self.name), repr(self.expr))


class Lambda(Node):
    def __init__(self, argnames, defaults, flags, code, lineno=None):
        self.argnames = argnames
        self.defaults = defaults
        self.flags = flags
        self.code = code
        self.lineno = lineno
        self.varargs = self.kwargs = None
        if flags & CO_VARARGS:
            self.varargs = 1
        if flags & CO_VARKEYWORDS:
            self.kwargs = 1

    def getChildren(self):
        children = []
        children.append(self.argnames)
        children.extend(flatten(self.defaults))
        children.append(self.flags)
        children.append(self.code)
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.extend(flatten_nodes(self.defaults))
        nodelist.append(self.code)
        return tuple(nodelist)

    def __repr__(self):
        return 'Lambda(%s, %s, %s, %s)' % (
            repr(self.argnames), repr(self.defaults),
            repr(self.flags), repr(self.code))


class LeftShift(Node):
    def __init__(self, leftright, lineno=None):
        self.left = leftright[0]
        self.right = leftright[1]
        self.lineno = lineno

    def getChildren(self):
        return self.left, self.right

    def getChildNodes(self):
        return self.left, self.right

    def __repr__(self):
        return 'LeftShift((%s, %s))' % (repr(self.left), repr(self.right))


class List(Node):
    def __init__(self, nodes, lineno=None):
        self.nodes = nodes
        self.lineno = lineno

    def getChildren(self):
        return tuple(flatten(self.nodes))

    def getChildNodes(self):
        nodelist = []
        nodelist.extend(flatten_nodes(self.nodes))
        return tuple(nodelist)

    def __repr__(self):
        return 'List(%s)' % (repr(self.nodes),)


class ListComp(Node):
    def __init__(self, expr, quals, lineno=None):
        self.expr = expr
        self.quals = quals
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.append(self.expr)
        children.extend(flatten(self.quals))
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.append(self.expr)
        nodelist.extend(flatten_nodes(self.quals))
        return tuple(nodelist)

    def __repr__(self):
        return 'ListComp(%s, %s)' % (repr(self.expr), repr(self.quals))


class ListCompFor(Node):
    def __init__(self, assign, list, ifs, lineno=None):
        self.assign = assign
        self.list = list
        self.ifs = ifs
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.append(self.assign)
        children.append(self.list)
        children.extend(flatten(self.ifs))
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.append(self.assign)
        nodelist.append(self.list)
        nodelist.extend(flatten_nodes(self.ifs))
        return tuple(nodelist)

    def __repr__(self):
        return 'ListCompFor(%s, %s, %s)' % (repr(self.assign),
                                            repr(self.list), repr(self.ifs))


class ListCompIf(Node):
    def __init__(self, test, lineno=None):
        self.test = test
        self.lineno = lineno

    def getChildren(self):
        return self.test,

    def getChildNodes(self):
        return self.test,

    def __repr__(self):
        return 'ListCompIf(%s)' % (repr(self.test),)


class SetComp(Node):
    def __init__(self, expr, quals, lineno=None):
        self.expr = expr
        self.quals = quals
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.append(self.expr)
        children.extend(flatten(self.quals))
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.append(self.expr)
        nodelist.extend(flatten_nodes(self.quals))
        return tuple(nodelist)

    def __repr__(self):
        return 'SetComp(%s, %s)' % (repr(self.expr), repr(self.quals))


class DictComp(Node):
    def __init__(self, key, value, quals, lineno=None):
        self.key = key
        self.value = value
        self.quals = quals
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.append(self.key)
        children.append(self.value)
        children.extend(flatten(self.quals))
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.append(self.key)
        nodelist.append(self.value)
        nodelist.extend(flatten_nodes(self.quals))
        return tuple(nodelist)

    def __repr__(self):
        return 'DictComp(%s, %s, %s)' % (repr(self.key), repr(self.value),
                                         repr(self.quals))


class Mod(Node):
    def __init__(self, leftright, lineno=None):
        self.left = leftright[0]
        self.right = leftright[1]
        self.lineno = lineno

    def getChildren(self):
        return self.left, self.right

    def getChildNodes(self):
        return self.left, self.right

    def __repr__(self):
        return 'Mod((%s, %s))' % (repr(self.left), repr(self.right))


class Module(Node):
    def __init__(self, doc, node, lineno=None):
        self.doc = doc
        self.node = node
        self.lineno = lineno

    def getChildren(self):
        return self.doc, self.node

    def getChildNodes(self):
        return self.node,

    def __repr__(self):
        return 'Module(%s, %s)' % (repr(self.doc), repr(self.node))


class Mul(Node):
    def __init__(self, leftright, lineno=None):
        self.left = leftright[0]
        self.right = leftright[1]
        self.lineno = lineno

    def getChildren(self):
        return self.left, self.right

    def getChildNodes(self):
        return self.left, self.right

    def __repr__(self):
        return 'Mul((%s, %s))' % (repr(self.left), repr(self.right))


class Name(Node):
    def __init__(self, name, lineno=None):
        self.name = name
        self.lineno = lineno

    def getChildren(self):
        return self.name,

    def getChildNodes(self):
        return ()

    def __repr__(self):
        return 'Name(%s)' % (repr(self.name),)


class Not(Node):
    def __init__(self, expr, lineno=None):
        self.expr = expr
        self.lineno = lineno

    def getChildren(self):
        return self.expr,

    def getChildNodes(self):
        return self.expr,

    def __repr__(self):
        return 'Not(%s)' % (repr(self.expr),)


class Or(Node):
    def __init__(self, nodes, lineno=None):
        self.nodes = nodes
        self.lineno = lineno

    def getChildren(self):
        return tuple(flatten(self.nodes))

    def getChildNodes(self):
        nodelist = []
        nodelist.extend(flatten_nodes(self.nodes))
        return tuple(nodelist)

    def __repr__(self):
        return 'Or(%s)' % (repr(self.nodes),)


class Pass(Node):
    def __init__(self, lineno=None):
        self.lineno = lineno

    def getChildren(self):
        return ()

    def getChildNodes(self):
        return ()

    def __repr__(self):
        return 'Pass()'


class Power(Node):
    def __init__(self, leftright, lineno=None):
        self.left = leftright[0]
        self.right = leftright[1]
        self.lineno = lineno

    def getChildren(self):
        return self.left, self.right

    def getChildNodes(self):
        return self.left, self.right

    def __repr__(self):
        return 'Power((%s, %s))' % (repr(self.left), repr(self.right))


class Print(Node):
    def __init__(self, nodes, dest, lineno=None):
        self.nodes = nodes
        self.dest = dest
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.extend(flatten(self.nodes))
        children.append(self.dest)
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.extend(flatten_nodes(self.nodes))
        if self.dest is not None:
            nodelist.append(self.dest)
        return tuple(nodelist)

    def __repr__(self):
        return 'Print(%s, %s)' % (repr(self.nodes), repr(self.dest))


class Printnl(Node):
    def __init__(self, nodes, dest, lineno=None):
        self.nodes = nodes
        self.dest = dest
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.extend(flatten(self.nodes))
        children.append(self.dest)
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.extend(flatten_nodes(self.nodes))
        if self.dest is not None:
            nodelist.append(self.dest)
        return tuple(nodelist)

    def __repr__(self):
        return 'Printnl(%s, %s)' % (repr(self.nodes), repr(self.dest))


class Raise(Node):
    def __init__(self, expr1, expr2, expr3, lineno=None):
        self.expr1 = expr1
        self.expr2 = expr2
        self.expr3 = expr3
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.append(self.expr1)
        children.append(self.expr2)
        children.append(self.expr3)
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        if self.expr1 is not None:
            nodelist.append(self.expr1)
        if self.expr2 is not None:
            nodelist.append(self.expr2)
        if self.expr3 is not None:
            nodelist.append(self.expr3)
        return tuple(nodelist)

    def __repr__(self):
        return 'Raise(%s, %s, %s)' % (repr(self.expr1), repr(self.expr2),
                                      repr(self.expr3))


class Return(Node):
    def __init__(self, value, lineno=None):
        self.value = value
        self.lineno = lineno

    def getChildren(self):
        return self.value,

    def getChildNodes(self):
        return self.value,

    def __repr__(self):
        return 'Return(%s)' % (repr(self.value),)


class RightShift(Node):
    def __init__(self, leftright, lineno=None):
        self.left = leftright[0]
        self.right = leftright[1]
        self.lineno = lineno

    def getChildren(self):
        return self.left, self.right

    def getChildNodes(self):
        return self.left, self.right

    def __repr__(self):
        return 'RightShift((%s, %s))' % (repr(self.left), repr(self.right))


class Set(Node):
    def __init__(self, nodes, lineno=None):
        self.nodes = nodes
        self.lineno = lineno

    def getChildren(self):
        return tuple(flatten(self.nodes))

    def getChildNodes(self):
        nodelist = []
        nodelist.extend(flatten_nodes(self.nodes))
        return tuple(nodelist)

    def __repr__(self):
        return 'Set(%s)' % (repr(self.nodes),)


class Slice(Node):
    def __init__(self, expr, flags, lower, upper, lineno=None):
        self.expr = expr
        self.flags = flags
        self.lower = lower
        self.upper = upper
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.append(self.expr)
        children.append(self.flags)
        children.append(self.lower)
        children.append(self.upper)
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.append(self.expr)
        if self.lower is not None:
            nodelist.append(self.lower)
        if self.upper is not None:
            nodelist.append(self.upper)
        return tuple(nodelist)

    def __repr__(self):
        return 'Slice(%s, %s, %s, %s)' % (repr(self.expr), repr(self.flags),
                                          repr(self.lower), repr(self.upper))


class Sliceobj(Node):
    def __init__(self, nodes, lineno=None):
        self.nodes = nodes
        self.lineno = lineno

    def getChildren(self):
        return tuple(flatten(self.nodes))

    def getChildNodes(self):
        nodelist = []
        nodelist.extend(flatten_nodes(self.nodes))
        return tuple(nodelist)

    def __repr__(self):
        return 'Sliceobj(%s)' % (repr(self.nodes),)


class Stmt(Node):
    def __init__(self, nodes, lineno=None):
        self.nodes = nodes
        self.lineno = lineno

    def getChildren(self):
        return tuple(flatten(self.nodes))

    def getChildNodes(self):
        nodelist = []
        nodelist.extend(flatten_nodes(self.nodes))
        return tuple(nodelist)

    def __repr__(self):
        return 'Stmt(%s)' % (repr(self.nodes),)


class Sub(Node):
    def __init__(self, leftright, lineno=None):
        self.left = leftright[0]
        self.right = leftright[1]
        self.lineno = lineno

    def getChildren(self):
        return self.left, self.right

    def getChildNodes(self):
        return self.left, self.right

    def __repr__(self):
        return 'Sub((%s, %s))' % (repr(self.left), repr(self.right))


class Subscript(Node):
    def __init__(self, expr, flags, subs, lineno=None):
        self.expr = expr
        self.flags = flags
        self.subs = subs
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.append(self.expr)
        children.append(self.flags)
        children.extend(flatten(self.subs))
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.append(self.expr)
        nodelist.extend(flatten_nodes(self.subs))
        return tuple(nodelist)

    def __repr__(self):
        return 'Subscript(%s, %s, %s)' % (repr(self.expr), repr(self.flags),
                                          repr(self.subs))


class TryExcept(Node):
    def __init__(self, body, handlers, else_, lineno=None):
        self.body = body
        self.handlers = handlers
        self.else_ = else_
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.append(self.body)
        children.extend(flatten(self.handlers))
        children.append(self.else_)
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.append(self.body)
        nodelist.extend(flatten_nodes(self.handlers))
        if self.else_ is not None:
            nodelist.append(self.else_)
        return tuple(nodelist)

    def __repr__(self):
        return 'TryExcept(%s, %s, %s)' % (repr(self.body), repr(self.handlers),
                                          repr(self.else_))


class TryFinally(Node):
    def __init__(self, body, final, lineno=None):
        self.body = body
        self.final = final
        self.lineno = lineno

    def getChildren(self):
        return self.body, self.final

    def getChildNodes(self):
        return self.body, self.final

    def __repr__(self):
        return 'TryFinally(%s, %s)' % (repr(self.body), repr(self.final))


class Tuple(Node):
    def __init__(self, nodes, lineno=None):
        self.nodes = nodes
        self.lineno = lineno

    def getChildren(self):
        return tuple(flatten(self.nodes))

    def getChildNodes(self):
        nodelist = []
        nodelist.extend(flatten_nodes(self.nodes))
        return tuple(nodelist)

    def __repr__(self):
        return 'Tuple(%s)' % (repr(self.nodes),)


class UnaryAdd(Node):
    def __init__(self, expr, lineno=None):
        self.expr = expr
        self.lineno = lineno

    def getChildren(self):
        return self.expr,

    def getChildNodes(self):
        return self.expr,

    def __repr__(self):
        return 'UnaryAdd(%s)' % (repr(self.expr),)


class UnarySub(Node):
    def __init__(self, expr, lineno=None):
        self.expr = expr
        self.lineno = lineno

    def getChildren(self):
        return self.expr,

    def getChildNodes(self):
        return self.expr,

    def __repr__(self):
        return 'UnarySub(%s)' % (repr(self.expr),)


class While(Node):
    def __init__(self, test, body, else_, lineno=None):
        self.test = test
        self.body = body
        self.else_ = else_
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.append(self.test)
        children.append(self.body)
        children.append(self.else_)
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.append(self.test)
        nodelist.append(self.body)
        if self.else_ is not None:
            nodelist.append(self.else_)
        return tuple(nodelist)

    def __repr__(self):
        return 'While(%s, %s, %s)' % (repr(self.test),
                                      repr(self.body), repr(self.else_))


class With(Node):
    def __init__(self, expr, vars, body, lineno=None):
        self.expr = expr
        self.vars = vars
        self.body = body
        self.lineno = lineno

    def getChildren(self):
        children = []
        children.append(self.expr)
        children.append(self.vars)
        children.append(self.body)
        return tuple(children)

    def getChildNodes(self):
        nodelist = []
        nodelist.append(self.expr)
        if self.vars is not None:
            nodelist.append(self.vars)
        nodelist.append(self.body)
        return tuple(nodelist)

    def __repr__(self):
        return 'With(%s, %s, %s)' % (
            repr(self.expr), repr(self.vars), repr(self.body))


class Yield(Node):
    def __init__(self, value, lineno=None):
        self.value = value
        self.lineno = lineno

    def getChildren(self):
        return self.value,

    def getChildNodes(self):
        return self.value,

    def __repr__(self):
        return 'Yield(%s)' % (repr(self.value),)


for name, obj in items_list(globals()):
    if isinstance(obj, type) and issubclass(obj, Node):
        nodes[name.lower()] = obj
