PredicateTransition (ANTLR 4 Runtime 4.13.2 API)

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.

Field Summary

Fields
Modifier and Type Field Description

boolean isCtxDependent

int predIndex

int ruleIndex
- 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
`PredicateTransition(ATNState target, int ruleIndex, int predIndex, boolean isCtxDependent)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`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()`

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, wait, wait, wait

- Field Detail
  - ruleIndex
```
public final int ruleIndex
```
  - predIndex
```
public final int predIndex
```
  - isCtxDependent
```
public final boolean isCtxDependent
```
- Constructor Detail
  - PredicateTransition
```
public PredicateTransition(ATNState target,
                           int ruleIndex,
                           int predIndex,
                           boolean isCtxDependent)
```
- 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
  - getPredicate
```
public SemanticContext.Predicate getPredicate()
```
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object