Package org.htmlunit.corejs.javascript.typedarrays

Class NativeTypedArrayView<T>

java.lang.Object

org.htmlunit.corejs.javascript.ScriptableObject

org.htmlunit.corejs.javascript.IdScriptableObject

org.htmlunit.corejs.javascript.typedarrays.NativeArrayBufferView

org.htmlunit.corejs.javascript.typedarrays.NativeTypedArrayView<T>

All Implemented Interfaces:

Serializable, Iterable<T>, Collection<T>, List<T>, RandomAccess, SequencedCollection<T>, ConstProperties, DebuggableObject, ExternalArrayData, IdFunctionCall, Scriptable, SymbolScriptable

Direct Known Subclasses:

NativeFloat32Array, NativeFloat64Array, NativeInt16Array, NativeInt32Array, NativeInt8Array, NativeUint16Array, NativeUint32Array, NativeUint8Array, NativeUint8ClampedArray

public abstract class NativeTypedArrayView<T>
extends NativeArrayBufferView
implements List<T>, RandomAccess, ExternalArrayData

This class is the abstract parent for all of the various typed arrays. Each one shows a view of a specific NativeArrayBuffer, and modifications here will affect the rest.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.htmlunit.corejs.javascript.ScriptableObject

ScriptableObject.KeyComparator

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	Id_at
private static final int	Id_BYTES_PER_ELEMENT
private static final int	Id_constructor
private static final int	Id_get
private static final int	Id_length
private static final int	Id_set
private static final int	Id_subarray
private static final int	Id_toString
protected final int	length	The length, in elements, of the array
private static final int	MAX_INSTANCE_ID
protected static final int	MAX_PROTOTYPE_ID
private static final long	serialVersionUID
private static final int	SymbolId_iterator

Fields inherited from class org.htmlunit.corejs.javascript.typedarrays.NativeArrayBufferView

arrayBuffer, byteLength, offset

Fields inherited from class org.htmlunit.corejs.javascript.ScriptableObject

CONST, DONTENUM, EMPTY, PERMANENT, READONLY, UNINITIALIZED_CONST

Fields inherited from interface org.htmlunit.corejs.javascript.Scriptable

NOT_FOUND

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	NativeTypedArrayView()
protected	NativeTypedArrayView(NativeArrayBuffer ab, int off, int len, int byteLen)

Method Summary

Modifier and Type	Method	Description
void	add(int i, T aByte)
boolean	add(T aByte)
boolean	addAll(int i, Collection<? extends T> bytes)
boolean	addAll(Collection<? extends T> bytes)
protected boolean	checkIndex(int index)
void	clear()
protected abstract NativeTypedArrayView<T>	construct(NativeArrayBuffer ab, int off, int len)
boolean	contains(Object o)
boolean	containsAll(Collection<?> objects)
void	delete(int index)	Removes the indexed property from the object.
void	delete(String name)	Removes a named property from the object.
boolean	equals(Object o)
Object	execIdCall(IdFunctionObject f, Context cx, Scriptable scope, Scriptable thisObj, Object[] args)	'thisObj' will be null if invoked as constructor, in which case * instance of Scriptable should be returned.
protected void	fillConstructorProperties(IdFunctionObject ctor)
protected int	findInstanceIdInfo(String s)	Map name to id of instance property.
protected int	findPrototypeId(String s)
protected int	findPrototypeId(Symbol k)
Object	get(int index, Scriptable start)	Returns the value of the indexed property or NOT_FOUND.
Object	get(String name, Scriptable start)	Returns the value of the named property or NOT_FOUND.
Object	getArrayElement(int index)	Return the element at the specified index.
int	getArrayLength()	Return the length of the array.
abstract int	getBytesPerElement()	Return the number of bytes represented by each element in the array.
Object[]	getIds()	Returns an array of ids for the properties of the object.
protected String	getInstanceIdName(int id)	Map id back to property name it defines.
protected Object	getInstanceIdValue(int id)	Get id value.
protected int	getMaxInstanceId()	Get maximum id findInstanceIdInfo can generate.
boolean	has(int index, Scriptable start)	Returns true if the property index is defined.
boolean	has(String name, Scriptable start)	Returns true if the named property is defined.
int	hashCode()
int	indexOf(Object o)
protected void	initPrototypeId(int id)
boolean	isEmpty()
Iterator<T>	iterator()
private Object	js_at(Context cx, Scriptable scope, Scriptable thisObj, Object[] args)
private NativeTypedArrayView<T>	js_constructor(Context cx, Scriptable scope, Object[] args)
protected abstract Object	js_get(int index)
protected abstract Object	js_set(int index, Object c)
private Object	js_subarray(Context cx, Scriptable scope, int s, int e)
int	lastIndexOf(Object o)
ListIterator<T>	listIterator()
ListIterator<T>	listIterator(int start)
private NativeArrayBuffer	makeArrayBuffer(Context cx, Scriptable scope, int length)
void	put(int index, Scriptable start, Object val)	Sets the value of the indexed property, creating it if need be.
void	put(String name, Scriptable start, Object val)	Sets the value of the named property, creating it if need be.
protected abstract NativeTypedArrayView<T>	realThis(Scriptable thisObj, IdFunctionObject f)
T	remove(int i)
boolean	remove(Object o)
boolean	removeAll(Collection<?> objects)
boolean	retainAll(Collection<?> objects)
void	setArrayElement(int index, Object value)	Set the element at the specified index.
private void	setRange(NativeArray a, int off)
private void	setRange(NativeTypedArrayView<T> v, int off)
int	size()
List<T>	subList(int i, int i2)
Object[]	toArray()
<U> U[]	toArray(U[] ts)
private static int	toIndex(double num)	To aid in parsing: Return a positive (or zero) integer if the double is a valid array index, and -1 if not.

Methods inherited from class org.htmlunit.corejs.javascript.typedarrays.NativeArrayBufferView

get, getBuffer, getByteLength, getByteOffset, isArg, useLittleEndian

Methods inherited from class org.htmlunit.corejs.javascript.IdScriptableObject

activatePrototypeMap, addIdFunctionProperty, defaultGet, defaultHas, defaultPut, defineOwnProperty, delete, ensureType, exportAsJSClass, findInstanceIdInfo, getAttributes, getAttributes, getOwnPropertyDescriptor, has, hasPrototypeMap, initPrototypeConstructor, initPrototypeMethod, initPrototypeMethod, initPrototypeMethod, initPrototypeValue, initPrototypeValue, instanceIdInfo, put, setAttributes, setInstanceIdAttributes, setInstanceIdValue

Methods inherited from class org.htmlunit.corejs.javascript.ScriptableObject

applyDescriptorToAttributeBitset, associateValue, avoidObjectDetection, buildDataDescriptor, callMethod, callMethod, checkPropertyChange, checkPropertyDefinition, defineClass, defineClass, defineClass, defineConst, defineConstProperty, defineFunctionProperties, defineOwnProperties, defineOwnProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, deleteProperty, deleteProperty, deleteProperty, ensureScriptable, ensureScriptableObject, ensureSymbolScriptable, equivalentValues, get, getAllIds, getArrayPrototype, getAssociatedValue, getAttributes, getAttributes, getAttributes, getClassName, getClassPrototype, getDefaultValue, getDefaultValue, getExternalArrayData, getExternalArrayLength, getFunctionPrototype, getGeneratorFunctionPrototype, getGetterOrSetter, getGetterOrSetter, getObjectPrototype, getParentScope, getProperty, getProperty, getProperty, getPropertyIds, getPrototype, getTopLevelScope, getTopScopeValue, getTypedProperty, getTypedProperty, getTypeOf, hasInstance, hasProperty, hasProperty, hasProperty, isAccessorDescriptor, isConst, isDataDescriptor, isExtensible, isFalse, isGenericDescriptor, isGetterOrSetter, isSealed, isTrue, preventExtensions, putConst, putConstProperty, putProperty, putProperty, putProperty, querySlot, redefineProperty, sameValue, sealObject, setAttributes, setAttributes, setAttributes, setAttributes, setCommonDescriptorProperties, setExternalArrayData, setGetterOrSetter, setParentScope, setPrototype

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.List

addFirst, addLast, get, getFirst, getLast, removeFirst, removeLast, replaceAll, reversed, set, sort, spliterator

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

length

protected final int length

The length, in elements, of the array

Id_constructor

private static final int Id_constructor

See Also:

• Constant Field Values

Id_toString

private static final int Id_toString

See Also:

• Constant Field Values

Id_get

private static final int Id_get

See Also:

• Constant Field Values

Id_set

private static final int Id_set

See Also:

• Constant Field Values

Id_subarray

private static final int Id_subarray

See Also:

• Constant Field Values

Id_at

private static final int Id_at

See Also:

• Constant Field Values

SymbolId_iterator

private static final int SymbolId_iterator

See Also:

• Constant Field Values

MAX_PROTOTYPE_ID

protected static final int MAX_PROTOTYPE_ID

See Also:

• Constant Field Values

Id_length

private static final int Id_length

See Also:

• Constant Field Values

Id_BYTES_PER_ELEMENT

private static final int Id_BYTES_PER_ELEMENT

See Also:

• Constant Field Values

MAX_INSTANCE_ID

private static final int MAX_INSTANCE_ID

See Also:

• Constant Field Values

Constructor Details

NativeTypedArrayView

protected NativeTypedArrayView()

NativeTypedArrayView

protected NativeTypedArrayView(NativeArrayBuffer ab,
 int off,
 int len,
 int byteLen)

Method Details

get

public Object get(int index,
 Scriptable start)

Description copied from class: ScriptableObject

Returns the value of the indexed property or NOT_FOUND.

Specified by:

get in interface Scriptable

Overrides:

get in class ScriptableObject

Parameters:

index - the numeric index for the property

start - the object in which the lookup began

Returns:

the value of the property (may be null), or NOT_FOUND

See Also:

• Scriptable.get(String,Scriptable)

get

public Object get(String name,
 Scriptable start)

Description copied from class: ScriptableObject

Returns the value of the named property or NOT_FOUND.

If the property was created using defineProperty, the appropriate getter method is called.

Specified by:

get in interface Scriptable

Overrides:

get in class IdScriptableObject

Parameters:

name - the name of the property

start - the object in which the lookup began

Returns:

the value of the property (may be null), or NOT_FOUND

See Also:

• Context.getUndefinedValue()

has

public boolean has(int index,
 Scriptable start)

Description copied from class: ScriptableObject

Returns true if the property index is defined.

Specified by:

has in interface Scriptable

Overrides:

has in class ScriptableObject

Parameters:

index - the numeric index for the property

start - the object in which the lookup began

Returns:

true if and only if the property was found in the object

See Also:

• Scriptable.get(int, Scriptable)
• ScriptableObject.getProperty(Scriptable, int)

has

public boolean has(String name,
 Scriptable start)

Description copied from class: ScriptableObject

Returns true if the named property is defined.

Specified by:

has in interface Scriptable

Overrides:

has in class IdScriptableObject

Parameters:

name - the name of the property

start - the object in which the lookup began

Returns:

true if and only if the property was found in the object

See Also:

• Scriptable.get(String, Scriptable)
• ScriptableObject.getProperty(Scriptable, String)

put

public void put(int index,
 Scriptable start,
 Object val)

Description copied from class: ScriptableObject

Sets the value of the indexed property, creating it if need be.

Specified by:

put in interface Scriptable

Overrides:

put in class ScriptableObject

Parameters:

index - the numeric index for the property

start - the object whose property is being set

val - value to set the property to

See Also:

• Scriptable.has(int, Scriptable)
• Scriptable.get(int, Scriptable)
• ScriptableObject.putProperty(Scriptable, int, Object)
• Context.toObject(Object, Scriptable)

put

public void put(String name,
 Scriptable start,
 Object val)

Description copied from class: ScriptableObject

Sets the value of the named property, creating it if need be.

If the property was created using defineProperty, the appropriate setter method is called.

If the property's attributes include READONLY, no action is taken. This method will actually set the property in the start object.

Specified by:

put in interface Scriptable

Overrides:

put in class IdScriptableObject

Parameters:

name - the name of the property

start - the object whose property is being set

val - value to set the property to

See Also:

• Scriptable.has(String, Scriptable)
• Scriptable.get(String, Scriptable)
• ScriptableObject.putProperty(Scriptable, String, Object)
• Context.toObject(Object, Scriptable)

delete

public void delete(int index)

Description copied from class: ScriptableObject

Removes the indexed property from the object.

If the property is not found, or it has the PERMANENT attribute, no action is taken.

Specified by:

delete in interface Scriptable

Overrides:

delete in class ScriptableObject

Parameters:

index - the numeric index for the property

See Also:

• Scriptable.get(int, Scriptable)
• ScriptableObject.deleteProperty(Scriptable, int)

delete

public void delete(String name)

Description copied from class: ScriptableObject

Removes a named property from the object.

If the property is not found, or it has the PERMANENT attribute, no action is taken.

Specified by:

delete in interface Scriptable

Overrides:

delete in class IdScriptableObject

Parameters:

name - the name of the property

See Also:

• Scriptable.get(String, Scriptable)
• ScriptableObject.deleteProperty(Scriptable, String)

getIds

public Object[] getIds()

Description copied from class: ScriptableObject

Returns an array of ids for the properties of the object.

Any properties with the attribute DONTENUM are not listed.

Specified by:

getIds in interface Scriptable

Overrides:

getIds in class ScriptableObject

Returns:

an array of java.lang.Objects with an entry for every listed property. Properties accessed via an integer index will have a corresponding Integer entry in the returned array. Properties accessed by a String will have a String entry in the returned array.

toIndex

private static int toIndex(double num)

To aid in parsing: Return a positive (or zero) integer if the double is a valid array index, and -1 if not.

checkIndex

protected boolean checkIndex(int index)

getBytesPerElement

public abstract int getBytesPerElement()

Return the number of bytes represented by each element in the array. This can be useful when wishing to manipulate the byte array directly from Java.

construct

protected abstract NativeTypedArrayView<T> construct(NativeArrayBuffer ab,
 int off,
 int len)

js_get

protected abstract Object js_get(int index)

js_set

protected abstract Object js_set(int index,
 Object c)

realThis

protected abstract NativeTypedArrayView<T> realThis(Scriptable thisObj,
 IdFunctionObject f)

makeArrayBuffer

private NativeArrayBuffer makeArrayBuffer(Context cx,
 Scriptable scope,
 int length)

js_constructor

private NativeTypedArrayView<T> js_constructor(Context cx,
 Scriptable scope,
 Object[] args)

setRange

private void setRange(NativeTypedArrayView<T> v,
 int off)

setRange

private void setRange(NativeArray a,
 int off)

js_subarray

private Object js_subarray(Context cx,
 Scriptable scope,
 int s,
 int e)

js_at

private Object js_at(Context cx,
 Scriptable scope,
 Scriptable thisObj,
 Object[] args)

execIdCall

public Object execIdCall(IdFunctionObject f,
 Context cx,
 Scriptable scope,
 Scriptable thisObj,
 Object[] args)

Description copied from class: IdScriptableObject

'thisObj' will be null if invoked as constructor, in which case * instance of Scriptable should be returned.

Specified by:

execIdCall in interface IdFunctionCall

Overrides:

execIdCall in class IdScriptableObject

initPrototypeId

protected void initPrototypeId(int id)

Overrides:

initPrototypeId in class IdScriptableObject

findPrototypeId

protected int findPrototypeId(Symbol k)

Overrides:

findPrototypeId in class IdScriptableObject

findPrototypeId

protected int findPrototypeId(String s)

Overrides:

findPrototypeId in class IdScriptableObject

fillConstructorProperties

protected void fillConstructorProperties(IdFunctionObject ctor)

Overrides:

fillConstructorProperties in class IdScriptableObject

getMaxInstanceId

protected int getMaxInstanceId()

Description copied from class: IdScriptableObject

Get maximum id findInstanceIdInfo can generate.

Overrides:

getMaxInstanceId in class NativeArrayBufferView

getInstanceIdName

protected String getInstanceIdName(int id)

Description copied from class: IdScriptableObject

Map id back to property name it defines.

Overrides:

getInstanceIdName in class NativeArrayBufferView

getInstanceIdValue

protected Object getInstanceIdValue(int id)

Description copied from class: IdScriptableObject

Get id value. * If id value is constant, descendant can call cacheIdValue to store * value in the permanent cache. * Default implementation creates IdFunctionObject instance for given id * and cache its value

Overrides:

getInstanceIdValue in class NativeArrayBufferView

findInstanceIdInfo

protected int findInstanceIdInfo(String s)

Description copied from class: IdScriptableObject

Map name to id of instance property. Should return 0 if not found or the result of IdScriptableObject.instanceIdInfo(int, int).

Overrides:

findInstanceIdInfo in class NativeArrayBufferView

getArrayElement

public Object getArrayElement(int index)

Description copied from interface: ExternalArrayData

Return the element at the specified index. The result must be a type that is valid in JavaScript: Number, String, or Scriptable. This method will not be called unless "index" is in range.

Specified by:

getArrayElement in interface ExternalArrayData

setArrayElement

public void setArrayElement(int index,
 Object value)

Description copied from interface: ExternalArrayData

Set the element at the specified index. This method will not be called unless "index" is in range. The method must check that "value" is a valid type, and convert it if necessary.

Specified by:

setArrayElement in interface ExternalArrayData

getArrayLength

public int getArrayLength()

Description copied from interface: ExternalArrayData

Return the length of the array.

Specified by:

getArrayLength in interface ExternalArrayData

containsAll

public boolean containsAll(Collection<?> objects)

Specified by:

containsAll in interface Collection<T>

Specified by:

containsAll in interface List<T>

indexOf

public int indexOf(Object o)

Specified by:

indexOf in interface List<T>

lastIndexOf

public int lastIndexOf(Object o)

Specified by:

lastIndexOf in interface List<T>

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection<T>

Specified by:

toArray in interface List<T>

toArray

public <U> U[] toArray(U[] ts)

Specified by:

toArray in interface Collection<T>

Specified by:

toArray in interface List<T>

size

public int size()

Specified by:

size in interface Collection<T>

Specified by:

size in interface List<T>

Overrides:

size in class ScriptableObject

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection<T>

Specified by:

isEmpty in interface List<T>

Overrides:

isEmpty in class ScriptableObject

contains

public boolean contains(Object o)

Specified by:

contains in interface Collection<T>

Specified by:

contains in interface List<T>

equals

public boolean equals(Object o)

Specified by:

equals in interface Collection<T>

Specified by:

equals in interface List<T>

Overrides:

equals in class Object

hashCode

public int hashCode()

Specified by:

hashCode in interface Collection<T>

Specified by:

hashCode in interface List<T>

Overrides:

hashCode in class Object

iterator

public Iterator<T> iterator()

Specified by:

iterator in interface Collection<T>

Specified by:

iterator in interface Iterable<T>

Specified by:

iterator in interface List<T>

listIterator

public ListIterator<T> listIterator()

Specified by:

listIterator in interface List<T>

listIterator

public ListIterator<T> listIterator(int start)

Specified by:

listIterator in interface List<T>

subList

public List<T> subList(int i,
 int i2)

Specified by:

subList in interface List<T>

add

public boolean add(T aByte)

Specified by:

add in interface Collection<T>

Specified by:

add in interface List<T>

add

public void add(int i,
 T aByte)

Specified by:

add in interface List<T>

addAll

public boolean addAll(Collection<? extends T> bytes)

Specified by:

addAll in interface Collection<T>

Specified by:

addAll in interface List<T>

addAll

public boolean addAll(int i,
 Collection<? extends T> bytes)

Specified by:

addAll in interface List<T>

clear

public void clear()

Specified by:

clear in interface Collection<T>

Specified by:

clear in interface List<T>

remove

public T remove(int i)

Specified by:

remove in interface List<T>

remove

public boolean remove(Object o)

Specified by:

remove in interface Collection<T>

Specified by:

remove in interface List<T>

removeAll

public boolean removeAll(Collection<?> objects)

Specified by:

removeAll in interface Collection<T>

Specified by:

removeAll in interface List<T>

retainAll

public boolean retainAll(Collection<?> objects)

Specified by:

retainAll in interface Collection<T>

Specified by:

retainAll in interface List<T>