Class HolesObjectArray

java.lang.Object

com.oracle.truffle.js.runtime.array.ScriptArray

com.oracle.truffle.js.runtime.array.DynamicArray

com.oracle.truffle.js.runtime.array.dyn.AbstractWritableArray

com.oracle.truffle.js.runtime.array.dyn.AbstractObjectArray

com.oracle.truffle.js.runtime.array.dyn.AbstractContiguousObjectArray

com.oracle.truffle.js.runtime.array.dyn.HolesObjectArray

public final class HolesObjectArray
extends AbstractContiguousObjectArray

Nested Class Summary

Nested classes/interfaces inherited from class com.oracle.truffle.js.runtime.array.dyn.AbstractWritableArray

AbstractWritableArray.SetSupportedProfileAccess

Nested classes/interfaces inherited from class com.oracle.truffle.js.runtime.array.DynamicArray

DynamicArray.DynamicArrayCache

Nested classes/interfaces inherited from class com.oracle.truffle.js.runtime.array.ScriptArray

ScriptArray.CreateWritableProfileAccess, ScriptArray.DefaultIterator, ScriptArray.SetLengthProfileAccess

Field Summary

Fields inherited from class com.oracle.truffle.js.runtime.array.DynamicArray

cache, INTEGRITY_LEVEL_FROZEN, INTEGRITY_LEVEL_FROZEN_LENGTH_READONLY, INTEGRITY_LEVEL_MASK, INTEGRITY_LEVEL_NONE, INTEGRITY_LEVEL_NONE_LENGTH_READONLY, INTEGRITY_LEVEL_NOT_EXTENSIBLE, INTEGRITY_LEVEL_NOT_EXTENSIBLE_LENGTH_READONLY, INTEGRITY_LEVEL_SEALED, INTEGRITY_LEVEL_SEALED_LENGTH_READONLY, INTEGRITY_LEVELS, integrityLevel, LENGTH_NOT_WRITABLE, LENGTH_WRITABLE_MASK

Fields inherited from class com.oracle.truffle.js.runtime.array.ScriptArray

EMPTY_OBJECT_ARRAY

Method Summary

Modifier and Type	Method	Description
protected Object	castNonNull(Object value)
boolean	containsHoles(JSDynamicObject object, long index)
static HolesObjectArray	createHolesObjectArray()
ScriptArray	deleteElementImpl(JSDynamicObject object, long index, boolean strict)
Object	getInBoundsFast(JSDynamicObject object, int index)
boolean	hasElement(JSDynamicObject object, long index)
boolean	hasHoles(JSDynamicObject object)	Returns true when this array actually has holes between ScriptArray.firstElementIndex(com.oracle.truffle.js.runtime.objects.JSDynamicObject) and ScriptArray.lastElementIndex(com.oracle.truffle.js.runtime.objects.JSDynamicObject).
boolean	isHoleFast(JSDynamicObject object, int index)
boolean	isHolesType()	Returns true if this array type could have hole values in it.
static boolean	isHoleValue(Object value)
boolean	isSupported(JSDynamicObject object, long index)
static HolesObjectArray	makeHolesObjectArray(JSDynamicObject object, int length, Object[] array, long indexOffset, int arrayOffset, int usedLength, int holeCount, int integrityLevel)
long	nextElementIndex(JSDynamicObject object, long index0)	Returns the next index.
List<Object>	ownPropertyKeys(JSDynamicObject object)
int	prepareInBounds(JSDynamicObject object, int index, com.oracle.truffle.api.nodes.Node node, AbstractWritableArray.SetSupportedProfileAccess profile)
int	prepareSupported(JSDynamicObject object, int index, com.oracle.truffle.api.nodes.Node node, AbstractWritableArray.SetSupportedProfileAccess profile)
long	previousElementIndex(JSDynamicObject object, long index0)	Returns the previous index.
ScriptArray	removeRangeImpl(JSDynamicObject object, long start, long end)	This function deletes all elements in the range from [start..end[.
void	setInBoundsFast(JSDynamicObject object, int index, Object value)
void	setInBoundsFastHole(JSDynamicObject object, int index, Object value)
void	setInBoundsFastNonHole(JSDynamicObject object, int index, Object value)
HolesObjectArray	toHoles(JSDynamicObject object, long index, Object value)
AbstractObjectArray	toNonHoles(JSDynamicObject object, long index, Object value)
protected HolesObjectArray	withIntegrityLevel(int newIntegrityLevel)

Methods inherited from class com.oracle.truffle.js.runtime.array.dyn.AbstractContiguousObjectArray

addRangeImpl, firstElementIndex, getArrayOffset, getInBoundsFastObject, getIndexOffset, lastElementIndex, prepareInBoundsFast, setArrayOffset, setIndexOffset, setLengthLess

Methods inherited from class com.oracle.truffle.js.runtime.array.dyn.AbstractObjectArray

allocateArray, checkNonNull, cloneArray, fillHoles, getArray, getArrayCapacity, isHolePrepared, moveRangePrepared, resizeArray, setElementImpl, setHoleValue, setInBounds, setSupported, toDouble, toObject

Methods inherited from class com.oracle.truffle.js.runtime.array.dyn.AbstractWritableArray

assertHoleCount, checkFillHoles, clearUnusedArea, countHoles, deleteElementHoles, getElement, getElementInBounds, getInBoundsFastDouble, getInBoundsFastInt, getUsedLength, hasHolesOrUnused, incrementHolesCount, isInBounds, isInBoundsFast, isSparse, isSupportedContiguous, isSupportedHoles, isSupportedZeroBased, length, lengthInt, nextElementIndexHoles, nextElementIndexZeroBased, prepareInBoundsContiguous, prepareInBoundsHoles, prepareInBoundsZeroBased, prepareSupportedContiguous, prepareSupportedHoles, prepareSupportedZeroBased, previousElementIndexHoles, removeRangeContiguous, removeRangeHoles, setArrayProperties, setArrayProperties, setLengthImpl, setLengthLessContiguous, setLengthLessZeroBased, shiftRangeImpl, toContiguous, toNonContiguous, toSparse, traceWriteValue, unusedElementsAreHoles

Methods inherited from class com.oracle.truffle.js.runtime.array.DynamicArray

createCache, freeze, isExtensible, isFrozen, isLengthNotWritable, isSealed, maybePreinitializeCache, preventExtensions, seal, setIntegrityLevel, setLengthNotWritable, toString

Methods inherited from class com.oracle.truffle.js.runtime.array.ScriptArray

addRange, asIterable, canDeleteElement, cast, createConstantArray, createConstantEmptyArray, deleteElement, isInstance, makeMultiRangeList, makeRangeList, nextPower, ownPropertyKeysContiguous, ownPropertyKeysHoles, removeRange, removeRange, setElement, setLength, setLength, shiftRange, toArray, traceArrayTransition, traceWrite, valueIsByte

Methods inherited from class java.lang.Object

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

Method Details

makeHolesObjectArray

public static HolesObjectArray makeHolesObjectArray(JSDynamicObject object,
 int length,
 Object[] array,
 long indexOffset,
 int arrayOffset,
 int usedLength,
 int holeCount,
 int integrityLevel)

createHolesObjectArray

public static HolesObjectArray createHolesObjectArray()

setInBoundsFast

public void setInBoundsFast(JSDynamicObject object,
 int index,
 Object value)

Overrides:

setInBoundsFast in class AbstractContiguousObjectArray

isHoleFast

public boolean isHoleFast(JSDynamicObject object,
 int index)

setInBoundsFastHole

public void setInBoundsFastHole(JSDynamicObject object,
 int index,
 Object value)

setInBoundsFastNonHole

public void setInBoundsFastNonHole(JSDynamicObject object,
 int index,
 Object value)

containsHoles

public boolean containsHoles(JSDynamicObject object,
 long index)

Overrides:

containsHoles in class AbstractWritableArray

toNonHoles

public AbstractObjectArray toNonHoles(JSDynamicObject object,
 long index,
 Object value)

Overrides:

toNonHoles in class AbstractWritableArray

prepareInBounds

public int prepareInBounds(JSDynamicObject object,
 int index,
 com.oracle.truffle.api.nodes.Node node,
 AbstractWritableArray.SetSupportedProfileAccess profile)

Specified by:

prepareInBounds in class AbstractWritableArray

isSupported

public boolean isSupported(JSDynamicObject object,
 long index)

Specified by:

isSupported in class AbstractWritableArray

prepareSupported

public int prepareSupported(JSDynamicObject object,
 int index,
 com.oracle.truffle.api.nodes.Node node,
 AbstractWritableArray.SetSupportedProfileAccess profile)

Specified by:

prepareSupported in class AbstractWritableArray

getInBoundsFast

public Object getInBoundsFast(JSDynamicObject object,
 int index)

Overrides:

getInBoundsFast in class AbstractObjectArray

toHoles

public HolesObjectArray toHoles(JSDynamicObject object,
 long index,
 Object value)

Specified by:

toHoles in class AbstractObjectArray

isHoleValue

public static boolean isHoleValue(Object value)

nextElementIndex

public long nextElementIndex(JSDynamicObject object,
 long index0)

Description copied from class: ScriptArray

Returns the next index. The index is guaranteed either to exist, or be MAX_SAFE_INTEGER. Reason for MAX_SAFE_INTEGER is: this array could be the prototype of another one; returning the length() of this array would be wrong, if the inheriting array is longer, but has a hole at length().

Overrides:

nextElementIndex in class AbstractWritableArray

previousElementIndex

public long previousElementIndex(JSDynamicObject object,
 long index0)

Description copied from class: ScriptArray

Returns the previous index. The index is guaranteed either to exist, or be smaller than firstElementIndex().

Overrides:

previousElementIndex in class AbstractWritableArray

hasElement

public boolean hasElement(JSDynamicObject object,
 long index)

Overrides:

hasElement in class AbstractWritableArray

Returns:

true if array has an element (not a hole) at this index.

deleteElementImpl

public ScriptArray deleteElementImpl(JSDynamicObject object,
 long index,
 boolean strict)

Overrides:

deleteElementImpl in class AbstractObjectArray

isHolesType

public boolean isHolesType()

Description copied from class: ScriptArray

Returns true if this array type could have hole values in it. Doesn't tell whether it actually HAS holes.

Overrides:

isHolesType in class ScriptArray

hasHoles

public boolean hasHoles(JSDynamicObject object)

Description copied from class: ScriptArray

Returns true when this array actually has holes between ScriptArray.firstElementIndex(com.oracle.truffle.js.runtime.objects.JSDynamicObject) and ScriptArray.lastElementIndex(com.oracle.truffle.js.runtime.objects.JSDynamicObject). Implies ScriptArray.isHolesType().

Overrides:

hasHoles in class AbstractWritableArray

See Also:

• ScriptArray.hasHolesOrUnused(com.oracle.truffle.js.runtime.objects.JSDynamicObject)

removeRangeImpl

public ScriptArray removeRangeImpl(JSDynamicObject object,
 long start,
 long end)

Description copied from class: ScriptArray

This function deletes all elements in the range from [start..end[. This is equivalent to shifting the whole array, starting with element index end, by end-start positions to the left. Can be used by e.g. Array.prototype.splice;

Specified by:

removeRangeImpl in class ScriptArray

castNonNull

protected Object castNonNull(Object value)

Overrides:

castNonNull in class AbstractObjectArray

withIntegrityLevel

protected HolesObjectArray withIntegrityLevel(int newIntegrityLevel)

Specified by:

withIntegrityLevel in class AbstractObjectArray

ownPropertyKeys

public List<Object> ownPropertyKeys(JSDynamicObject object)

Overrides:

ownPropertyKeys in class ScriptArray