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

Class ConstantEmptyPrototypeArray

java.lang.Object

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

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

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

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

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

public final class ConstantEmptyPrototypeArray
extends AbstractConstantEmptyArray

This array type is reserved for Array.prototype and Object.prototype. It ensures an Assumption is invalidated if the Array.prototype and Object.prototype is ever assigned an indexed property.

Nested Class Summary

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

AbstractConstantArray.CreateWritableProfileAccess

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.DefaultIterator, ScriptArray.ProfileAccess, ScriptArray.ProfileHolder, ScriptArray.SetLengthProfileAccess

Field Summary

Fields inherited from class com.oracle.truffle.js.runtime.array.dyn.AbstractConstantArray

CREATE_WRITABLE_PROFILE

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, SET_LENGTH_PROFILE

Method Summary

Modifier and Type	Method and Description
ScriptArray	addRangeImpl(com.oracle.truffle.api.object.DynamicObject object, long offset, int size) This method grows the array by adding more elements of a given size.
static ScriptArray	createConstantEmptyPrototypeArray()
AbstractDoubleArray	createWriteableDouble(com.oracle.truffle.api.object.DynamicObject object, long index, double value, ScriptArray.ProfileHolder profile)
AbstractIntArray	createWriteableInt(com.oracle.truffle.api.object.DynamicObject object, long index, int value, ScriptArray.ProfileHolder profile)
AbstractJSObjectArray	createWriteableJSObject(com.oracle.truffle.api.object.DynamicObject object, long index, JSDynamicObject value, ScriptArray.ProfileHolder profile)
AbstractObjectArray	createWriteableObject(com.oracle.truffle.api.object.DynamicObject object, long index, Object value, ScriptArray.ProfileHolder profile)
ScriptArray	removeRangeImpl(com.oracle.truffle.api.object.DynamicObject object, long start, long end) This function deletes all elements in the range from [start..end[.
ScriptArray	setLengthImpl(com.oracle.truffle.api.object.DynamicObject object, long length, ScriptArray.ProfileHolder profile)
protected DynamicArray	withIntegrityLevel(int newIntegrityLevel)

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

cloneArray, deleteElementImpl, firstElementIndex, getCapacity, getElementInBounds, hasElement, hasHoles, isHolesType, lastElementIndex, lengthInt, nextElementIndex, ownPropertyKeys, previousElementIndex, setCapacity, toArray

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

createCreateWritableProfile, getElement, getElementInBounds, isInBoundsFast, length, setElementImpl

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

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

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

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

Methods inherited from class java.lang.Object

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

Method Detail

createConstantEmptyPrototypeArray

public static ScriptArray createConstantEmptyPrototypeArray()

setLengthImpl

public ScriptArray setLengthImpl(com.oracle.truffle.api.object.DynamicObject object,
                                 long length,
                                 ScriptArray.ProfileHolder profile)

Specified by:

setLengthImpl in class ScriptArray

createWriteableInt

public AbstractIntArray createWriteableInt(com.oracle.truffle.api.object.DynamicObject object,
                                           long index,
                                           int value,
                                           ScriptArray.ProfileHolder profile)

Overrides:

createWriteableInt in class AbstractConstantEmptyArray

createWriteableDouble

public AbstractDoubleArray createWriteableDouble(com.oracle.truffle.api.object.DynamicObject object,
                                                 long index,
                                                 double value,
                                                 ScriptArray.ProfileHolder profile)

Overrides:

createWriteableDouble in class AbstractConstantEmptyArray

createWriteableJSObject

public AbstractJSObjectArray createWriteableJSObject(com.oracle.truffle.api.object.DynamicObject object,
                                                     long index,
                                                     JSDynamicObject value,
                                                     ScriptArray.ProfileHolder profile)

Overrides:

createWriteableJSObject in class AbstractConstantEmptyArray

createWriteableObject

public AbstractObjectArray createWriteableObject(com.oracle.truffle.api.object.DynamicObject object,
                                                 long index,
                                                 Object value,
                                                 ScriptArray.ProfileHolder profile)

Overrides:

createWriteableObject in class AbstractConstantEmptyArray

removeRangeImpl

public ScriptArray removeRangeImpl(com.oracle.truffle.api.object.DynamicObject 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

addRangeImpl

public ScriptArray addRangeImpl(com.oracle.truffle.api.object.DynamicObject 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

withIntegrityLevel

protected DynamicArray withIntegrityLevel(int newIntegrityLevel)

Specified by:

withIntegrityLevel in class DynamicArray