Package org.antlr.v4.runtime.atn

Class RuleTransition

java.lang.Object

org.antlr.v4.runtime.atn.Transition

org.antlr.v4.runtime.atn.RuleTransition

public final class RuleTransition
extends Transition

Field Summary

Fields

Modifier and Type	Field	Description
ATNState	followState	What node to begin computations following ref to rule
int	precedence
int	ruleIndex	Ptr to the rule definition object for this rule ref

Fields inherited from class org.antlr.v4.runtime.atn.Transition

ACTION, ATOM, EPSILON, NOT_SET, PRECEDENCE, PREDICATE, RANGE, RULE, serializationNames, serializationTypes, SET, target, WILDCARD

Constructor Summary

Constructors

Constructor	Description
RuleTransition(RuleStartState ruleStart, int ruleIndex, int precedence, ATNState followState)
RuleTransition(RuleStartState ruleStart, int ruleIndex, ATNState followState)	Deprecated. Use RuleTransition(RuleStartState, int, int, ATNState) instead.

Method Summary

Modifier and Type	Method	Description
int	getSerializationType()
boolean	isEpsilon()	Determines if the transition is an "epsilon" transition.
boolean	matches(int symbol, int minVocabSymbol, int maxVocabSymbol)

Methods inherited from class org.antlr.v4.runtime.atn.Transition

label

Methods inherited from class java.lang.Object

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

Field Detail

ruleIndex

public final int ruleIndex

Ptr to the rule definition object for this rule ref

precedence

public final int precedence

followState

public ATNState followState

What node to begin computations following ref to rule

Constructor Detail

RuleTransition

@Deprecated
public RuleTransition(RuleStartState ruleStart,
                      int ruleIndex,
                      ATNState followState)

Deprecated.

Use RuleTransition(RuleStartState, int, int, ATNState) instead.

RuleTransition

public RuleTransition(RuleStartState ruleStart,
                      int ruleIndex,
                      int precedence,
                      ATNState followState)

Method Detail

getSerializationType

public int getSerializationType()

Specified by:

getSerializationType in class Transition

isEpsilon

public boolean isEpsilon()

Description copied from class: Transition

Determines if the transition is an "epsilon" transition.

The default implementation returns false.

Overrides:

isEpsilon in class Transition

Returns:

true if traversing this transition in the ATN does not consume an input symbol; otherwise, false if traversing this transition consumes (matches) an input symbol.

matches

public boolean matches(int symbol,
                       int minVocabSymbol,
                       int maxVocabSymbol)

Specified by:

matches in class Transition