antlr-runtime-sys 0.2.0

# Generated from Expr.g4 by ANTLR 4.13.1
# encoding: utf-8
from antlr4 import *
from io import StringIO
import sys
if sys.version_info[1] > 5:
	from typing import TextIO
else:
	from typing.io import TextIO

def serializedATN():
    return [
        4,1,17,81,2,0,7,0,2,1,7,1,2,2,7,2,2,3,7,3,2,4,7,4,2,5,7,5,2,6,7,
        6,1,0,4,0,16,8,0,11,0,12,0,17,1,1,1,1,1,1,1,1,1,1,1,1,5,1,26,8,1,
        10,1,12,1,29,9,1,1,1,1,1,1,1,1,2,1,2,4,2,36,8,2,11,2,12,2,37,1,2,
        1,2,1,3,1,3,1,4,1,4,1,4,1,4,1,4,1,4,1,4,1,4,1,4,1,4,1,4,1,4,1,4,
        3,4,57,8,4,1,5,1,5,1,5,1,5,1,5,1,5,1,5,1,5,1,5,5,5,68,8,5,10,5,12,
        5,71,9,5,1,6,1,6,1,6,1,6,1,6,1,6,3,6,79,8,6,1,6,0,1,10,7,0,2,4,6,
        8,10,12,0,2,1,0,9,10,1,0,11,12,83,0,15,1,0,0,0,2,19,1,0,0,0,4,33,
        1,0,0,0,6,41,1,0,0,0,8,56,1,0,0,0,10,58,1,0,0,0,12,78,1,0,0,0,14,
        16,3,2,1,0,15,14,1,0,0,0,16,17,1,0,0,0,17,15,1,0,0,0,17,18,1,0,0,
        0,18,1,1,0,0,0,19,20,5,1,0,0,20,21,5,14,0,0,21,22,5,2,0,0,22,27,
        3,6,3,0,23,24,5,3,0,0,24,26,3,6,3,0,25,23,1,0,0,0,26,29,1,0,0,0,
        27,25,1,0,0,0,27,28,1,0,0,0,28,30,1,0,0,0,29,27,1,0,0,0,30,31,5,
        4,0,0,31,32,3,4,2,0,32,3,1,0,0,0,33,35,5,5,0,0,34,36,3,8,4,0,35,
        34,1,0,0,0,36,37,1,0,0,0,37,35,1,0,0,0,37,38,1,0,0,0,38,39,1,0,0,
        0,39,40,5,6,0,0,40,5,1,0,0,0,41,42,5,14,0,0,42,7,1,0,0,0,43,44,3,
        10,5,0,44,45,5,7,0,0,45,57,1,0,0,0,46,47,5,14,0,0,47,48,5,8,0,0,
        48,49,3,10,5,0,49,50,5,7,0,0,50,57,1,0,0,0,51,52,5,13,0,0,52,53,
        3,10,5,0,53,54,5,7,0,0,54,57,1,0,0,0,55,57,5,7,0,0,56,43,1,0,0,0,
        56,46,1,0,0,0,56,51,1,0,0,0,56,55,1,0,0,0,57,9,1,0,0,0,58,59,6,5,
        -1,0,59,60,3,12,6,0,60,69,1,0,0,0,61,62,10,3,0,0,62,63,7,0,0,0,63,
        68,3,10,5,4,64,65,10,2,0,0,65,66,7,1,0,0,66,68,3,10,5,3,67,61,1,
        0,0,0,67,64,1,0,0,0,68,71,1,0,0,0,69,67,1,0,0,0,69,70,1,0,0,0,70,
        11,1,0,0,0,71,69,1,0,0,0,72,79,5,15,0,0,73,79,5,14,0,0,74,75,5,2,
        0,0,75,76,3,10,5,0,76,77,5,4,0,0,77,79,1,0,0,0,78,72,1,0,0,0,78,
        73,1,0,0,0,78,74,1,0,0,0,79,13,1,0,0,0,7,17,27,37,56,67,69,78
    ]

class ExprParser ( Parser ):

    grammarFileName = "Expr.g4"

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

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

    sharedContextCache = PredictionContextCache()

    literalNames = [ "<INVALID>", "'def'", "'('", "','", "')'", "'{'", "'}'", 
                     "';'", "'='", "'*'", "'/'", "'+'", "'-'", "'return'" ]

    symbolicNames = [ "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
                      "<INVALID>", "MUL", "DIV", "ADD", "SUB", "RETURN", 
                      "ID", "INT", "NEWLINE", "WS" ]

    RULE_prog = 0
    RULE_func = 1
    RULE_body = 2
    RULE_arg = 3
    RULE_stat = 4
    RULE_expr = 5
    RULE_primary = 6

    ruleNames =  [ "prog", "func", "body", "arg", "stat", "expr", "primary" ]

    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
    MUL=9
    DIV=10
    ADD=11
    SUB=12
    RETURN=13
    ID=14
    INT=15
    NEWLINE=16
    WS=17

    def __init__(self, input:TokenStream, output:TextIO = sys.stdout):
        super().__init__(input, output)
        self.checkVersion("4.13.1")
        self._interp = ParserATNSimulator(self, self.atn, self.decisionsToDFA, self.sharedContextCache)
        self._predicates = None




    class ProgContext(ParserRuleContext):
        __slots__ = 'parser'

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

        def func(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(ExprParser.FuncContext)
            else:
                return self.getTypedRuleContext(ExprParser.FuncContext,i)


        def getRuleIndex(self):
            return ExprParser.RULE_prog

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

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




    def prog(self):

        localctx = ExprParser.ProgContext(self, self._ctx, self.state)
        self.enterRule(localctx, 0, self.RULE_prog)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 15 
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while True:
                self.state = 14
                self.func()
                self.state = 17 
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if not (_la==1):
                    break

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


    class FuncContext(ParserRuleContext):
        __slots__ = 'parser'

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

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

        def arg(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(ExprParser.ArgContext)
            else:
                return self.getTypedRuleContext(ExprParser.ArgContext,i)


        def body(self):
            return self.getTypedRuleContext(ExprParser.BodyContext,0)


        def getRuleIndex(self):
            return ExprParser.RULE_func

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

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




    def func(self):

        localctx = ExprParser.FuncContext(self, self._ctx, self.state)
        self.enterRule(localctx, 2, self.RULE_func)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 19
            self.match(ExprParser.T__0)
            self.state = 20
            self.match(ExprParser.ID)
            self.state = 21
            self.match(ExprParser.T__1)
            self.state = 22
            self.arg()
            self.state = 27
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while _la==3:
                self.state = 23
                self.match(ExprParser.T__2)
                self.state = 24
                self.arg()
                self.state = 29
                self._errHandler.sync(self)
                _la = self._input.LA(1)

            self.state = 30
            self.match(ExprParser.T__3)
            self.state = 31
            self.body()
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class BodyContext(ParserRuleContext):
        __slots__ = 'parser'

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

        def stat(self, i:int=None):
            if i is None:
                return self.getTypedRuleContexts(ExprParser.StatContext)
            else:
                return self.getTypedRuleContext(ExprParser.StatContext,i)


        def getRuleIndex(self):
            return ExprParser.RULE_body

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

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




    def body(self):

        localctx = ExprParser.BodyContext(self, self._ctx, self.state)
        self.enterRule(localctx, 4, self.RULE_body)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 33
            self.match(ExprParser.T__4)
            self.state = 35 
            self._errHandler.sync(self)
            _la = self._input.LA(1)
            while True:
                self.state = 34
                self.stat()
                self.state = 37 
                self._errHandler.sync(self)
                _la = self._input.LA(1)
                if not ((((_la) & ~0x3f) == 0 and ((1 << _la) & 57476) != 0)):
                    break

            self.state = 39
            self.match(ExprParser.T__5)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class ArgContext(ParserRuleContext):
        __slots__ = 'parser'

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

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

        def getRuleIndex(self):
            return ExprParser.RULE_arg

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

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




    def arg(self):

        localctx = ExprParser.ArgContext(self, self._ctx, self.state)
        self.enterRule(localctx, 6, self.RULE_arg)
        try:
            self.enterOuterAlt(localctx, 1)
            self.state = 41
            self.match(ExprParser.ID)
        except RecognitionException as re:
            localctx.exception = re
            self._errHandler.reportError(self, re)
            self._errHandler.recover(self, re)
        finally:
            self.exitRule()
        return localctx


    class StatContext(ParserRuleContext):
        __slots__ = 'parser'

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


        def getRuleIndex(self):
            return ExprParser.RULE_stat

     
        def copyFrom(self, ctx:ParserRuleContext):
            super().copyFrom(ctx)



    class RetContext(StatContext):

        def __init__(self, parser, ctx:ParserRuleContext): # actually a ExprParser.StatContext
            super().__init__(parser)
            self.copyFrom(ctx)

        def RETURN(self):
            return self.getToken(ExprParser.RETURN, 0)
        def expr(self):
            return self.getTypedRuleContext(ExprParser.ExprContext,0)


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

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


    class BlankContext(StatContext):

        def __init__(self, parser, ctx:ParserRuleContext): # actually a ExprParser.StatContext
            super().__init__(parser)
            self.copyFrom(ctx)


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

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


    class PrintExprContext(StatContext):

        def __init__(self, parser, ctx:ParserRuleContext): # actually a ExprParser.StatContext
            super().__init__(parser)
            self.copyFrom(ctx)

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


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

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


    class AssignContext(StatContext):

        def __init__(self, parser, ctx:ParserRuleContext): # actually a ExprParser.StatContext
            super().__init__(parser)
            self.copyFrom(ctx)

        def ID(self):
            return self.getToken(ExprParser.ID, 0)
        def expr(self):
            return self.getTypedRuleContext(ExprParser.ExprContext,0)


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

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



    def stat(self):

        localctx = ExprParser.StatContext(self, self._ctx, self.state)
        self.enterRule(localctx, 8, self.RULE_stat)
        try:
            self.state = 56
            self._errHandler.sync(self)
            la_ = self._interp.adaptivePredict(self._input,3,self._ctx)
            if la_ == 1:
                localctx = ExprParser.PrintExprContext(self, localctx)
                self.enterOuterAlt(localctx, 1)
                self.state = 43
                self.expr(0)
                self.state = 44
                self.match(ExprParser.T__6)
                pass

            elif la_ == 2:
                localctx = ExprParser.AssignContext(self, localctx)
                self.enterOuterAlt(localctx, 2)
                self.state = 46
                self.match(ExprParser.ID)
                self.state = 47
                self.match(ExprParser.T__7)
                self.state = 48
                self.expr(0)
                self.state = 49
                self.match(ExprParser.T__6)
                pass

            elif la_ == 3:
                localctx = ExprParser.RetContext(self, localctx)
                self.enterOuterAlt(localctx, 3)
                self.state = 51
                self.match(ExprParser.RETURN)
                self.state = 52
                self.expr(0)
                self.state = 53
                self.match(ExprParser.T__6)
                pass

            elif la_ == 4:
                localctx = ExprParser.BlankContext(self, localctx)
                self.enterOuterAlt(localctx, 4)
                self.state = 55
                self.match(ExprParser.T__6)
                pass


        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):
        __slots__ = 'parser'

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


        def getRuleIndex(self):
            return ExprParser.RULE_expr

     
        def copyFrom(self, ctx:ParserRuleContext):
            super().copyFrom(ctx)


    class PrimContext(ExprContext):

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

        def primary(self):
            return self.getTypedRuleContext(ExprParser.PrimaryContext,0)


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

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


    class MulDivContext(ExprContext):

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

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

        def MUL(self):
            return self.getToken(ExprParser.MUL, 0)
        def DIV(self):
            return self.getToken(ExprParser.DIV, 0)

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

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


    class AddSubContext(ExprContext):

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

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

        def ADD(self):
            return self.getToken(ExprParser.ADD, 0)
        def SUB(self):
            return self.getToken(ExprParser.SUB, 0)

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

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



    def expr(self, _p:int=0):
        _parentctx = self._ctx
        _parentState = self.state
        localctx = ExprParser.ExprContext(self, self._ctx, _parentState)
        _prevctx = localctx
        _startState = 10
        self.enterRecursionRule(localctx, 10, self.RULE_expr, _p)
        self._la = 0 # Token type
        try:
            self.enterOuterAlt(localctx, 1)
            localctx = ExprParser.PrimContext(self, localctx)
            self._ctx = localctx
            _prevctx = localctx

            self.state = 59
            self.primary()
            self._ctx.stop = self._input.LT(-1)
            self.state = 69
            self._errHandler.sync(self)
            _alt = self._interp.adaptivePredict(self._input,5,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 = 67
                    self._errHandler.sync(self)
                    la_ = self._interp.adaptivePredict(self._input,4,self._ctx)
                    if la_ == 1:
                        localctx = ExprParser.MulDivContext(self, ExprParser.ExprContext(self, _parentctx, _parentState))
                        self.pushNewRecursionContext(localctx, _startState, self.RULE_expr)
                        self.state = 61
                        if not self.precpred(self._ctx, 3):
                            from antlr4.error.Errors import FailedPredicateException
                            raise FailedPredicateException(self, "self.precpred(self._ctx, 3)")
                        self.state = 62
                        _la = self._input.LA(1)
                        if not(_la==9 or _la==10):
                            self._errHandler.recoverInline(self)
                        else:
                            self._errHandler.reportMatch(self)
                            self.consume()
                        self.state = 63
                        self.expr(4)
                        pass

                    elif la_ == 2:
                        localctx = ExprParser.AddSubContext(self, ExprParser.ExprContext(self, _parentctx, _parentState))
                        self.pushNewRecursionContext(localctx, _startState, self.RULE_expr)
                        self.state = 64
                        if not self.precpred(self._ctx, 2):
                            from antlr4.error.Errors import FailedPredicateException
                            raise FailedPredicateException(self, "self.precpred(self._ctx, 2)")
                        self.state = 65
                        _la = self._input.LA(1)
                        if not(_la==11 or _la==12):
                            self._errHandler.recoverInline(self)
                        else:
                            self._errHandler.reportMatch(self)
                            self.consume()
                        self.state = 66
                        self.expr(3)
                        pass

             
                self.state = 71
                self._errHandler.sync(self)
                _alt = self._interp.adaptivePredict(self._input,5,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 PrimaryContext(ParserRuleContext):
        __slots__ = 'parser'

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


        def getRuleIndex(self):
            return ExprParser.RULE_primary

     
        def copyFrom(self, ctx:ParserRuleContext):
            super().copyFrom(ctx)



    class ParensContext(PrimaryContext):

        def __init__(self, parser, ctx:ParserRuleContext): # actually a ExprParser.PrimaryContext
            super().__init__(parser)
            self.copyFrom(ctx)

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


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

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


    class IdContext(PrimaryContext):

        def __init__(self, parser, ctx:ParserRuleContext): # actually a ExprParser.PrimaryContext
            super().__init__(parser)
            self.copyFrom(ctx)

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

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

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


    class IntContext(PrimaryContext):

        def __init__(self, parser, ctx:ParserRuleContext): # actually a ExprParser.PrimaryContext
            super().__init__(parser)
            self.copyFrom(ctx)

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

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

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



    def primary(self):

        localctx = ExprParser.PrimaryContext(self, self._ctx, self.state)
        self.enterRule(localctx, 12, self.RULE_primary)
        try:
            self.state = 78
            self._errHandler.sync(self)
            token = self._input.LA(1)
            if token in [15]:
                localctx = ExprParser.IntContext(self, localctx)
                self.enterOuterAlt(localctx, 1)
                self.state = 72
                self.match(ExprParser.INT)
                pass
            elif token in [14]:
                localctx = ExprParser.IdContext(self, localctx)
                self.enterOuterAlt(localctx, 2)
                self.state = 73
                self.match(ExprParser.ID)
                pass
            elif token in [2]:
                localctx = ExprParser.ParensContext(self, localctx)
                self.enterOuterAlt(localctx, 3)
                self.state = 74
                self.match(ExprParser.T__1)
                self.state = 75
                self.expr(0)
                self.state = 76
                self.match(ExprParser.T__3)
                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



    def sempred(self, localctx:RuleContext, ruleIndex:int, predIndex:int):
        if self._predicates == None:
            self._predicates = dict()
        self._predicates[5] = self.expr_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 expr_sempred(self, localctx:ExprContext, predIndex:int):
            if predIndex == 0:
                return self.precpred(self._ctx, 3)
         

            if predIndex == 1:
                return self.precpred(self._ctx, 2)