Class DynamicArray

java.lang.Object

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

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

Direct Known Subclasses:

AbstractConstantArray, AbstractWritableArray, SparseArray

public abstract class DynamicArray
extends ScriptArray

Common base class for all dynamic (i.e., non-typed) JavaScript arrays. Encapsulates information about whether the array is non-extensible, sealed, frozen, and whether its length is writable.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static final class	DynamicArray.DynamicArrayCache

Nested classes/interfaces inherited from class ScriptArray

ScriptArray.CreateWritableProfileAccess, ScriptArray.DefaultIterator, ScriptArray.SetLengthProfileAccess

Field Summary

Fields

Modifier and Type	Field	Description
protected final DynamicArray.DynamicArrayCache	cache
protected static final int	INTEGRITY_LEVEL_FROZEN
protected static final int	INTEGRITY_LEVEL_FROZEN_LENGTH_READONLY
protected static final int	INTEGRITY_LEVEL_MASK
protected static final int	INTEGRITY_LEVEL_NONE
protected static final int	INTEGRITY_LEVEL_NONE_LENGTH_READONLY
protected static final int	INTEGRITY_LEVEL_NOT_EXTENSIBLE
protected static final int	INTEGRITY_LEVEL_NOT_EXTENSIBLE_LENGTH_READONLY
protected static final int	INTEGRITY_LEVEL_SEALED
protected static final int	INTEGRITY_LEVEL_SEALED_LENGTH_READONLY
protected static final int	INTEGRITY_LEVELS
protected final int	integrityLevel
protected static final int	LENGTH_NOT_WRITABLE
protected static final int	LENGTH_WRITABLE_MASK

Fields inherited from class ScriptArray

EMPTY_OBJECT_ARRAY

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	DynamicArray(int integrityLevel, DynamicArray.DynamicArrayCache cache)

Method Summary

Modifier and Type	Method	Description
abstract Object	cloneArray(JSDynamicObject object)
protected static DynamicArray.DynamicArrayCache	createCache()
ScriptArray	freeze()
boolean	isExtensible()
boolean	isFrozen()
boolean	isLengthNotWritable()
boolean	isSealed()
protected final <T extends ScriptArray> T	maybePreinitializeCache()
ScriptArray	preventExtensions()
ScriptArray	seal()
protected final <T extends ScriptArray> T	setIntegrityLevel(int integrityLevel)
ScriptArray	setLengthNotWritable()
String	toString()
protected abstract DynamicArray	withIntegrityLevel(int newIntegrityLevel)

Methods inherited from class ScriptArray

addRange, addRangeImpl, asIterable, canDeleteElement, cast, createConstantArray, createConstantEmptyArray, deleteElement, deleteElementImpl, firstElementIndex, getElement, getElementInBounds, hasElement, hasHoles, hasHolesOrUnused, isHolesType, isInBoundsFast, isInstance, lastElementIndex, length, lengthInt, makeMultiRangeList, makeRangeList, nextElementIndex, nextPower, ownPropertyKeys, ownPropertyKeysContiguous, ownPropertyKeysHoles, previousElementIndex, removeRange, removeRange, removeRangeImpl, setElement, setElementImpl, setLength, setLength, setLengthImpl, shiftRange, shiftRangeImpl, toArray, traceArrayTransition, traceWrite, valueIsByte

Methods inherited from class Object

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

Field Details

INTEGRITY_LEVEL_NONE

protected static final int INTEGRITY_LEVEL_NONE

See Also:

• Constant Field Values

INTEGRITY_LEVEL_NONE_LENGTH_READONLY

protected static final int INTEGRITY_LEVEL_NONE_LENGTH_READONLY

See Also:

• Constant Field Values

INTEGRITY_LEVEL_NOT_EXTENSIBLE

protected static final int INTEGRITY_LEVEL_NOT_EXTENSIBLE

See Also:

• Constant Field Values

INTEGRITY_LEVEL_NOT_EXTENSIBLE_LENGTH_READONLY

protected static final int INTEGRITY_LEVEL_NOT_EXTENSIBLE_LENGTH_READONLY

See Also:

• Constant Field Values

INTEGRITY_LEVEL_SEALED

protected static final int INTEGRITY_LEVEL_SEALED

See Also:

• Constant Field Values

INTEGRITY_LEVEL_SEALED_LENGTH_READONLY

protected static final int INTEGRITY_LEVEL_SEALED_LENGTH_READONLY

See Also:

• Constant Field Values

INTEGRITY_LEVEL_FROZEN

protected static final int INTEGRITY_LEVEL_FROZEN

See Also:

• Constant Field Values

INTEGRITY_LEVEL_FROZEN_LENGTH_READONLY

protected static final int INTEGRITY_LEVEL_FROZEN_LENGTH_READONLY

See Also:

• Constant Field Values

INTEGRITY_LEVELS

protected static final int INTEGRITY_LEVELS

See Also:

• Constant Field Values

INTEGRITY_LEVEL_MASK

protected static final int INTEGRITY_LEVEL_MASK

See Also:

• Constant Field Values

LENGTH_WRITABLE_MASK

protected static final int LENGTH_WRITABLE_MASK

See Also:

• Constant Field Values

LENGTH_NOT_WRITABLE

protected static final int LENGTH_NOT_WRITABLE

See Also:

• Constant Field Values

integrityLevel

protected final int integrityLevel

cache

protected final DynamicArray.DynamicArrayCache cache

Constructor Details

DynamicArray

protected DynamicArray(int integrityLevel,
 DynamicArray.DynamicArrayCache cache)

Method Details

maybePreinitializeCache

protected final <T extends ScriptArray> T maybePreinitializeCache()

createCache

protected static DynamicArray.DynamicArrayCache createCache()

withIntegrityLevel

protected abstract DynamicArray withIntegrityLevel(int newIntegrityLevel)

setIntegrityLevel

protected final <T extends ScriptArray> T setIntegrityLevel(int integrityLevel)

isSealed

public boolean isSealed()

Overrides:

isSealed in class ScriptArray

isFrozen

public boolean isFrozen()

Overrides:

isFrozen in class ScriptArray

isExtensible

public boolean isExtensible()

Overrides:

isExtensible in class ScriptArray

isLengthNotWritable

public boolean isLengthNotWritable()

Overrides:

isLengthNotWritable in class ScriptArray

seal

public ScriptArray seal()

Specified by:

seal in class ScriptArray

freeze

public ScriptArray freeze()

Specified by:

freeze in class ScriptArray

preventExtensions

public ScriptArray preventExtensions()

Specified by:

preventExtensions in class ScriptArray

setLengthNotWritable

public ScriptArray setLengthNotWritable()

Specified by:

setLengthNotWritable in class ScriptArray

cloneArray

public abstract Object cloneArray(JSDynamicObject object)

toString

public String toString()

Overrides:

toString in class Object