org.antlr.v4.runtime

Class RuleContextWithAltNum

java.lang.Object

org.antlr.v4.runtime.RuleContext

org.antlr.v4.runtime.ParserRuleContext

org.antlr.v4.runtime.RuleContextWithAltNum

All Implemented Interfaces:

ParseTree, RuleNode, SyntaxTree, Tree

public class RuleContextWithAltNum
extends ParserRuleContext

A handy class for use with options {contextSuperClass=org.antlr.v4.runtime.RuleContextWithAltNum;} that provides a backing field / impl for the outer alternative number matched for an internal parse tree node. I'm only putting into Java runtime as I'm certain I'm the only one that will really every use this.

Field Summary

Fields inherited from class org.antlr.v4.runtime.ParserRuleContext

children, exception, start, stop

Fields inherited from class org.antlr.v4.runtime.RuleContext

invokingState, parent

Constructor Summary

Constructors

Constructor and Description
RuleContextWithAltNum()
RuleContextWithAltNum(ParserRuleContext parent, int invokingStateNumber)

Method Summary

Modifier and Type	Method and Description
int	getAltNumber() For rule associated with this parse tree internal node, return the outer alternative number used to match the input.
void	setAltNumber(int altNum) Set the outer alternative number for this context node.

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

addAnyChild, addChild, addChild, addChild, addErrorNode, addErrorNode, copyFrom, emptyContext, enterRule, exitRule, getChild, getChild, getChildCount, getParent, getRuleContext, getRuleContexts, getSourceInterval, getStart, getStop, getToken, getTokens, removeLastChild, toInfoString

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

accept, depth, getChildContext, getPayload, getRuleContext, getRuleIndex, getText, isEmpty, setParent, toString, toString, toString, toString, toString, toStringTree, toStringTree, toStringTree

Methods inherited from class java.lang.Object

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

Constructor Detail

RuleContextWithAltNum

public RuleContextWithAltNum()

RuleContextWithAltNum

public RuleContextWithAltNum(ParserRuleContext parent,
                             int invokingStateNumber)

Method Detail

getAltNumber

public int getAltNumber()

Description copied from class: RuleContext

For rule associated with this parse tree internal node, return the outer alternative number used to match the input. Default implementation does not compute nor store this alt num. Create a subclass of ParserRuleContext with backing field and set option contextSuperClass. to set it.

Overrides:

getAltNumber in class RuleContext

setAltNumber

public void setAltNumber(int altNum)

Description copied from class: RuleContext

Set the outer alternative number for this context node. Default implementation does nothing to avoid backing field overhead for trees that don't need it. Create a subclass of ParserRuleContext with backing field and set option contextSuperClass.

Overrides:

setAltNumber in class RuleContext