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 and Description
ATNState	followState What node to begin computations following ref to rule
boolean	optimizedTailCall
int	precedence
int	ruleIndex Ptr to the rule definition object for this rule ref
boolean	tailCall

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

Method Summary

Methods

Modifier and Type	Method and 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

@NotNull
public ATNState followState

What node to begin computations following ref to rule

tailCall

public boolean tailCall

optimizedTailCall

public boolean optimizedTailCall

Constructor Detail

RuleTransition

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

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

RuleTransition

public RuleTransition(@NotNull
              RuleStartState ruleStart,
              int ruleIndex,
              int precedence,
              @NotNull
              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