org.antlr.v4.runtime

Class NoViableAltException

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.RuntimeException

org.antlr.v4.runtime.RecognitionException

org.antlr.v4.runtime.NoViableAltException

All Implemented Interfaces:

Serializable

public class NoViableAltException
extends RecognitionException

Indicates that the parser could not decide which of two or more paths to take based upon the remaining input. It tracks the starting token of the offending input and also knows where the parser was in the various paths when the error. Reported by reportNoViableAlternative()

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
NoViableAltException(Parser recognizer)
NoViableAltException(Recognizer<Token,?> recognizer, TokenStream input, Token startToken, Token offendingToken, ATNConfigSet deadEndConfigs, ParserRuleContext ctx)

Method Summary

Modifier and Type	Method and Description
ATNConfigSet	getDeadEndConfigs()
Token	getStartToken()

Methods inherited from class org.antlr.v4.runtime.RecognitionException

getContext, getExpectedTokens, getInputStream, getOffendingState, getOffendingToken, getOffendingToken, getRecognizer, setOffendingState, setOffendingToken

Methods inherited from class java.lang.Throwable

addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

NoViableAltException

public NoViableAltException(@NotNull
                            Parser recognizer)

NoViableAltException

public NoViableAltException(@NotNull
                            Recognizer<Token,?> recognizer,
                            @NotNull
                            TokenStream input,
                            @NotNull
                            Token startToken,
                            @NotNull
                            Token offendingToken,
                            @Nullable
                            ATNConfigSet deadEndConfigs,
                            @NotNull
                            ParserRuleContext ctx)

Method Detail

getStartToken

public Token getStartToken()

getDeadEndConfigs

@Nullable
public ATNConfigSet getDeadEndConfigs()