org.antlr.v4.runtime.atn

类 PredicateTransition

java.lang.Object

org.antlr.v4.runtime.atn.Transition

org.antlr.v4.runtime.atn.AbstractPredicateTransition

org.antlr.v4.runtime.atn.PredicateTransition

public final class PredicateTransition
extends AbstractPredicateTransition

TODO: this is old comment: A tree of semantic predicates from the grammar AST if label==SEMPRED. In the ATN, labels will always be exactly one predicate, but the DFA may have to combine a bunch of them as it collects predicates from multiple ATN configurations into a single DFA state.

字段概要

字段

限定符和类型	字段和说明
boolean	isCtxDependent
int	predIndex
int	ruleIndex

从类继承的字段 org.antlr.v4.runtime.atn.Transition

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

构造器概要

构造器

构造器和说明
PredicateTransition(ATNState target, int ruleIndex, int predIndex, boolean isCtxDependent)

方法概要

限定符和类型	方法和说明
SemanticContext.Predicate	getPredicate()
int	getSerializationType()
boolean	isEpsilon() Determines if the transition is an "epsilon" transition.
boolean	matches(int symbol, int minVocabSymbol, int maxVocabSymbol)
String	toString()

从类继承的方法 org.antlr.v4.runtime.atn.Transition

label

从类继承的方法 java.lang.Object

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

字段详细资料

ruleIndex

public final int ruleIndex

predIndex

public final int predIndex

isCtxDependent

public final boolean isCtxDependent

构造器详细资料

PredicateTransition

public PredicateTransition(@NotNull
                           ATNState target,
                           int ruleIndex,
                           int predIndex,
                           boolean isCtxDependent)

方法详细资料

getSerializationType

public int getSerializationType()

指定者:

getSerializationType 在类中 Transition

isEpsilon

public boolean isEpsilon()

从类复制的说明: Transition

Determines if the transition is an "epsilon" transition.

The default implementation returns false.

覆盖:

isEpsilon 在类中 Transition

返回:

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)

指定者:

matches 在类中 Transition

getPredicate

public SemanticContext.Predicate getPredicate()

toString

@NotNull
public String toString()

覆盖:

toString 在类中 Object