Package org.antlr.v4.runtime.atn

Class ArrayPredictionContext

java.lang.Object

org.antlr.v4.runtime.atn.PredictionContext

org.antlr.v4.runtime.atn.ArrayPredictionContext

public class ArrayPredictionContext
extends PredictionContext

Field Summary

Fields

Modifier and Type	Field	Description
PredictionContext[]	parents	Parent can be null only if full ctx mode and we make an array from #EMPTY and non-empty.
int[]	returnStates	Sorted for merge, no duplicates; if present, PredictionContext.EMPTY_RETURN_STATE is always last.

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

cachedHashCode, EMPTY_RETURN_STATE, id

Constructor Summary

Constructors

Constructor	Description
ArrayPredictionContext(PredictionContext[] parents, int[] returnStates)
ArrayPredictionContext(SingletonPredictionContext a)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
PredictionContext	getParent(int index)
int	getReturnState(int index)
boolean	isEmpty()	This means only the EmptyPredictionContext.Instance (wildcard? not sure) context is in set.
int	size()
String	toString()

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

calculateEmptyHashCode, calculateHashCode, calculateHashCode, combineCommonParents, fromRuleContext, getAllContextNodes, getAllContextNodes_, getCachedContext, hasEmptyPath, hashCode, merge, mergeArrays, mergeRoot, mergeSingletons, toDOTString, toString, toStrings, toStrings

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

parents

public final PredictionContext[] parents

Parent can be null only if full ctx mode and we make an array from #EMPTY and non-empty. We merge #EMPTY by using null parent and returnState == PredictionContext.EMPTY_RETURN_STATE.

returnStates

public final int[] returnStates

Sorted for merge, no duplicates; if present, PredictionContext.EMPTY_RETURN_STATE is always last.

Constructor Detail

ArrayPredictionContext

public ArrayPredictionContext(SingletonPredictionContext a)

ArrayPredictionContext

public ArrayPredictionContext(PredictionContext[] parents,
                              int[] returnStates)

Method Detail

isEmpty

public boolean isEmpty()

Description copied from class: PredictionContext

This means only the EmptyPredictionContext.Instance (wildcard? not sure) context is in set.

Overrides:

isEmpty in class PredictionContext

size

public int size()

Specified by:

size in class PredictionContext

getParent

public PredictionContext getParent(int index)

Specified by:

getParent in class PredictionContext

getReturnState

public int getReturnState(int index)

Specified by:

getReturnState in class PredictionContext

equals

public boolean equals(Object o)

Specified by:

equals in class PredictionContext

toString

public String toString()

Overrides:

toString in class Object