Package org.antlr.v4.runtime.atn
Class EpsilonTransition
java.lang.Object
org.antlr.v4.runtime.atn.Transition
org.antlr.v4.runtime.atn.EpsilonTransition
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Field Summary
Fields inherited from class org.antlr.v4.runtime.atn.Transition
ACTION, ATOM, EPSILON, NOT_SET, PRECEDENCE, PREDICATE, RANGE, RULE, serializationNames, serializationTypes, SET, target, WILDCARD
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Constructor Summary
ConstructorsConstructorDescriptionEpsilonTransition
(ATNState target) EpsilonTransition
(ATNState target, int outermostPrecedenceReturn) -
Method Summary
Methods inherited from class org.antlr.v4.runtime.atn.Transition
label
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Constructor Details
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EpsilonTransition
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EpsilonTransition
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Method Details
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outermostPrecedenceReturn
public int outermostPrecedenceReturn()- Returns:
- the rule index of a precedence rule for which this transition is returning from, where the precedence value is 0; otherwise, -1.
- Since:
- 4.4.1
- See Also:
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getSerializationType
public int getSerializationType()- Specified by:
getSerializationType
in classTransition
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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 classTransition
- 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.
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matches
public boolean matches(int symbol, int minVocabSymbol, int maxVocabSymbol) - Specified by:
matches
in classTransition
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toString
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