org.antlr.v4.runtime.atn

Class ArrayPredictionContext

java.lang.Object

org.antlr.v4.runtime.atn.PredictionContext

org.antlr.v4.runtime.atn.ArrayPredictionContext

All Implemented Interfaces:

Comparable<PredictionContext>, Iterable<SingletonPredictionContext>

public class ArrayPredictionContext
extends PredictionContext

Field Summary

Fields

Modifier and Type	Field and Description
PredictionContext[]	parents Parent can be null only if full ctx mode and we make an array from PredictionContext.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, EMPTY_RETURN_STATE, globalNodeCount, id

Constructor Summary

Constructors

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

Method Summary

Methods

Modifier and Type	Method and Description
protected static int	calculateHashCode(PredictionContext[] parents, int[] returnStates)
protected static int	calculateParentHashCode(PredictionContext[] parents)
protected static int	calculateReturnStatesHashCode(int[] returnStates)
boolean	equals(Object o)
PredictionContext	getParent(int index)
int	getReturnState(int index)
boolean	isEmpty() This means only the PredictionContext.EMPTY context is in set.
Iterator<SingletonPredictionContext>	iterator()
int	size()
String	toString()

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

calculateHashCode, combineCommonParents, compareTo, fromRuleContext, getAllContextNodes_, getAllContextNodes, getCachedContext, hasEmptyPath, hashCode, merge, mergeArrays, mergeRoot, mergeSingletons, toDOTString, toString, 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 PredictionContext.EMPTY and non-empty. We merge PredictionContext.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

calculateHashCode

protected static int calculateHashCode(PredictionContext[] parents,
                    int[] returnStates)

calculateParentHashCode

protected static int calculateParentHashCode(PredictionContext[] parents)

calculateReturnStatesHashCode

protected static int calculateReturnStatesHashCode(int[] returnStates)

iterator

public Iterator<SingletonPredictionContext> iterator()

Specified by:

iterator in interface Iterable<SingletonPredictionContext>

Specified by:

iterator in class PredictionContext

isEmpty

public boolean isEmpty()

Description copied from class: PredictionContext

This means only the PredictionContext.EMPTY 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)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object