Class AbstractConstantLazyArray

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.AbstractConstantLazyArray

Direct Known Subclasses:

LazyArray, LazyRegexResultArray, LazyRegexResultIndicesArray

public abstract class AbstractConstantLazyArray
extends AbstractConstantArray

Common base class for lazy array strategies.

Nested Class Summary

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

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
final ScriptArray	addRangeImpl(JSDynamicObject object, long offset, int size)	This method grows the array by adding more elements of a given size.
final AbstractWritableArray	createWriteableDouble(JSDynamicObject object, long index, double value, com.oracle.truffle.api.nodes.Node node, ScriptArray.CreateWritableProfileAccess profile)
final AbstractWritableArray	createWriteableInt(JSDynamicObject object, long index, int value, com.oracle.truffle.api.nodes.Node node, ScriptArray.CreateWritableProfileAccess profile)
final AbstractWritableArray	createWriteableJSObject(JSDynamicObject object, long index, JSDynamicObject value, com.oracle.truffle.api.nodes.Node node, ScriptArray.CreateWritableProfileAccess profile)
final ScriptArray	deleteElementImpl(JSDynamicObject object, long index, boolean strict)
final boolean	hasElement(JSDynamicObject object, long index)
final long	length(JSDynamicObject object)
final int	lengthInt(JSDynamicObject object)
final ScriptArray	removeRangeImpl(JSDynamicObject object, long start, long end)	This function deletes all elements in the range from [start..end[.
final ScriptArray	setLengthImpl(JSDynamicObject object, long len, com.oracle.truffle.api.nodes.Node node, ScriptArray.SetLengthProfileAccess profile)

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

createWriteableObject, firstElementIndex, getElement, getElementInBounds, getElementInBounds, hasHoles, isInBoundsFast, lastElementIndex, nextElementIndex, previousElementIndex, setElementImpl

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

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

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

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

Methods inherited from class java.lang.Object

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

Constructor Details

AbstractConstantLazyArray

protected AbstractConstantLazyArray(int integrityLevel,
 DynamicArray.DynamicArrayCache cache)

Method Details

hasElement

public final boolean hasElement(JSDynamicObject object,
 long index)

Specified by:

hasElement in class ScriptArray

Returns:

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

length

public final long length(JSDynamicObject object)

Specified by:

length in class ScriptArray

lengthInt

public final int lengthInt(JSDynamicObject object)

Specified by:

lengthInt in class ScriptArray

createWriteableDouble

public final AbstractWritableArray createWriteableDouble(JSDynamicObject object,
 long index,
 double value,
 com.oracle.truffle.api.nodes.Node node,
 ScriptArray.CreateWritableProfileAccess profile)

Specified by:

createWriteableDouble in class AbstractConstantArray

createWriteableInt

public final AbstractWritableArray createWriteableInt(JSDynamicObject object,
 long index,
 int value,
 com.oracle.truffle.api.nodes.Node node,
 ScriptArray.CreateWritableProfileAccess profile)

Specified by:

createWriteableInt in class AbstractConstantArray

createWriteableJSObject

public final AbstractWritableArray createWriteableJSObject(JSDynamicObject object,
 long index,
 JSDynamicObject value,
 com.oracle.truffle.api.nodes.Node node,
 ScriptArray.CreateWritableProfileAccess profile)

Specified by:

createWriteableJSObject in class AbstractConstantArray

deleteElementImpl

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

Specified by:

deleteElementImpl in class ScriptArray

setLengthImpl

public final ScriptArray setLengthImpl(JSDynamicObject object,
 long len,
 com.oracle.truffle.api.nodes.Node node,
 ScriptArray.SetLengthProfileAccess profile)

Specified by:

setLengthImpl in class ScriptArray

removeRangeImpl

public final 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

addRangeImpl

public final 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

Parameters:

offset - starting offset position

size - size of the inserted empty array

Returns:

a ScriptArray instance with the new size