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

Class ZeroBasedObjectArray

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.ZeroBasedObjectArray

public final class ZeroBasedObjectArray
extends AbstractObjectArray

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 and Description
ScriptArray	addRangeImpl(JSDynamicObject object, long offset, int size) This method grows the array by adding more elements of a given size.
static ZeroBasedObjectArray	createZeroBasedObjectArray()
long	firstElementIndex(JSDynamicObject object) First element index (inclusive).
Object	getInBoundsFastObject(JSDynamicObject object, int index)
boolean	hasHoles(JSDynamicObject object)
boolean	isSupported(JSDynamicObject object, long index)
long	lastElementIndex(JSDynamicObject object) Last element index (inclusive).
static ZeroBasedObjectArray	makeZeroBasedObjectArray(JSDynamicObject object, int length, int usedLength, Object[] array, int integrityLevel)
long	nextElementIndex(JSDynamicObject object, long index) Returns the next index.
protected int	prepareInBounds(JSDynamicObject object, int index, com.oracle.truffle.api.nodes.Node node, AbstractWritableArray.SetSupportedProfileAccess profile)
protected int	prepareInBoundsFast(JSDynamicObject object, long index)
protected int	prepareSupported(JSDynamicObject object, int index, com.oracle.truffle.api.nodes.Node node, AbstractWritableArray.SetSupportedProfileAccess profile)
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)
protected void	setLengthLess(JSDynamicObject object, long length, com.oracle.truffle.api.nodes.Node node, ScriptArray.SetLengthProfileAccess profile)
ScriptArray	shiftRangeImpl(JSDynamicObject object, long from) This function shifts all elements in the range from [0..limit[.
ContiguousObjectArray	toContiguous(JSDynamicObject object, long index, Object value)
HolesObjectArray	toHoles(JSDynamicObject object, long index, Object value)
protected ZeroBasedObjectArray	withIntegrityLevel(int newIntegrityLevel)

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

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

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

assertHoleCount, checkFillHoles, clearUnusedArea, containsHoles, countHoles, deleteElementHoles, getArrayOffset, getElement, getElementInBounds, getInBoundsFastDouble, getInBoundsFastInt, getIndexOffset, getUsedLength, hasElement, incrementHolesCount, isInBounds, isInBoundsFast, isSparse, isSupportedContiguous, isSupportedHoles, isSupportedZeroBased, length, lengthInt, nextElementIndexHoles, nextElementIndexZeroBased, prepareInBoundsContiguous, prepareInBoundsHoles, prepareInBoundsZeroBased, prepareSupportedContiguous, prepareSupportedHoles, prepareSupportedZeroBased, previousElementIndex, previousElementIndexHoles, removeRangeContiguous, removeRangeHoles, setArrayOffset, setArrayProperties, setArrayProperties, setIndexOffset, setLengthImpl, setLengthLessContiguous, setLengthLessZeroBased, toNonContiguous, toNonHoles, 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, isHolesType, isInstance, makeMultiRangeList, makeRangeList, nextPower, ownPropertyKeys, ownPropertyKeysContiguous, ownPropertyKeysHoles, removeRange, removeRange, setElement, setLength, setLength, shiftRange, toArray, toString, traceArrayTransition, traceWrite, valueIsByte

Methods inherited from class java.lang.Object

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

Method Detail

makeZeroBasedObjectArray

public static ZeroBasedObjectArray makeZeroBasedObjectArray(JSDynamicObject object,
                                                            int length,
                                                            int usedLength,
                                                            Object[] array,
                                                            int integrityLevel)

createZeroBasedObjectArray

public static ZeroBasedObjectArray createZeroBasedObjectArray()

isSupported

public boolean isSupported(JSDynamicObject object,
                           long index)

Specified by:

isSupported in class AbstractWritableArray

getInBoundsFastObject

public Object getInBoundsFastObject(JSDynamicObject object,
                                    int index)

Specified by:

getInBoundsFastObject in class AbstractObjectArray

setInBoundsFast

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

Specified by:

setInBoundsFast in class AbstractObjectArray

prepareInBoundsFast

protected int prepareInBoundsFast(JSDynamicObject object,
                                  long index)

Specified by:

prepareInBoundsFast in class AbstractWritableArray

prepareInBounds

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

Specified by:

prepareInBounds in class AbstractWritableArray

prepareSupported

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

Specified by:

prepareSupported in class AbstractWritableArray

setLengthLess

protected void setLengthLess(JSDynamicObject object,
                             long length,
                             com.oracle.truffle.api.nodes.Node node,
                             ScriptArray.SetLengthProfileAccess profile)

Specified by:

setLengthLess in class AbstractWritableArray

toContiguous

public ContiguousObjectArray toContiguous(JSDynamicObject object,
                                          long index,
                                          Object value)

Overrides:

toContiguous in class AbstractWritableArray

toHoles

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

Specified by:

toHoles in class AbstractObjectArray

firstElementIndex

public long firstElementIndex(JSDynamicObject object)

Description copied from class: ScriptArray

First element index (inclusive).

Specified by:

firstElementIndex in class ScriptArray

lastElementIndex

public long lastElementIndex(JSDynamicObject object)

Description copied from class: ScriptArray

Last element index (inclusive).

Specified by:

lastElementIndex in class ScriptArray

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

shiftRangeImpl

public ScriptArray shiftRangeImpl(JSDynamicObject object,
                                  long from)

Description copied from class: ScriptArray

This function shifts all elements in the range from [0..limit[. Depending on the underlying implementation, the shift operation might be zero-copy. Can be used by e.g. Array.prototype.shift;

Overrides:

shiftRangeImpl in class AbstractWritableArray

addRangeImpl

public ScriptArray addRangeImpl(JSDynamicObject object,
                                long offset,
                                int size)

Description copied from class: ScriptArray

This method grows the array by adding more elements of a given size. An offset parameter can be used to specify where the new elements have to be added (starting from zero). The operation is equivalent to shifting (right) the whole array or its part as defined by the offset parameter.

Specified by:

addRangeImpl in class ScriptArray

offset - starting offset position

size - size of the inserted empty array

Returns:

a ScriptArray instance with the new size

hasHoles

public boolean hasHoles(JSDynamicObject object)

Specified by:

hasHoles in class ScriptArray

withIntegrityLevel

protected ZeroBasedObjectArray withIntegrityLevel(int newIntegrityLevel)

Specified by:

withIntegrityLevel in class AbstractObjectArray

nextElementIndex

public long nextElementIndex(JSDynamicObject object,
                             long index)

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