Class NativeDataView

java.lang.Object

org.mozilla.javascript.ScriptableObject

org.mozilla.javascript.IdScriptableObject

org.mozilla.javascript.typedarrays.NativeArrayBufferView

org.mozilla.javascript.typedarrays.NativeDataView

All Implemented Interfaces:

Serializable, ConstProperties, DebuggableObject, IdFunctionCall, Scriptable, SymbolScriptable

public class NativeDataView
extends NativeArrayBufferView

This class represents the JavaScript "DataView" interface, which allows direct manipulations of the bytes in a NativeArrayBuffer. Java programmers would be best off getting the underling "byte[]" array from the NativeArrayBuffer and manipulating it directly, perhaps using the "ByteIo" class as a helper.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class ScriptableObject

ScriptableObject.KeyComparator

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CLASS_NAME
private static final int	Id_constructor
private static final int	Id_getFloat32
private static final int	Id_getFloat64
private static final int	Id_getInt16
private static final int	Id_getInt32
private static final int	Id_getInt8
private static final int	Id_getUint16
private static final int	Id_getUint32
private static final int	Id_getUint8
private static final int	Id_setFloat32
private static final int	Id_setFloat64
private static final int	Id_setInt16
private static final int	Id_setInt32
private static final int	Id_setInt8
private static final int	Id_setUint16
private static final int	Id_setUint32
private static final int	Id_setUint8
private static final int	MAX_PROTOTYPE_ID
private static final long	serialVersionUID

Fields inherited from class NativeArrayBufferView

arrayBuffer, byteLength, MAX_INSTANCE_ID, offset

Fields inherited from class ScriptableObject

CONST, DONTENUM, EMPTY, PERMANENT, READONLY, UNINITIALIZED_CONST

Fields inherited from interface Scriptable

NOT_FOUND

Constructor Summary

Constructors

Constructor	Description
NativeDataView()
NativeDataView(NativeArrayBuffer ab, int offset, int length)

Method Summary

Modifier and Type	Method	Description
private static int	determinePos(Object[] args)
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 int	findPrototypeId(String s)
String	getClassName()	Return the name of the class.
static void	init(Context cx, Scriptable scope, boolean sealed)
protected void	initPrototypeId(int id)
private static NativeDataView	js_constructor(Object[] args)
private Object	js_getFloat(int bytes, Object[] args)
private Object	js_getInt(int bytes, boolean signed, Object[] args)
private void	js_setFloat(int bytes, Object[] args)
private void	js_setInt(int bytes, boolean signed, Object[] args)
private void	rangeCheck(int pos, int len)
private static NativeDataView	realThis(Scriptable thisObj, IdFunctionObject f)

Methods inherited from class NativeArrayBufferView

findInstanceIdInfo, getBuffer, getByteLength, getByteOffset, getInstanceIdName, getInstanceIdValue, getMaxInstanceId, isArg, useLittleEndian

Methods inherited from class IdScriptableObject

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

Methods inherited from class ScriptableObject

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

Methods inherited from class Object

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

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

CLASS_NAME

public static final String CLASS_NAME

See Also:

• Constant Field Values

Id_constructor

private static final int Id_constructor

See Also:

• Constant Field Values

Id_getInt8

private static final int Id_getInt8

See Also:

• Constant Field Values

Id_getUint8

private static final int Id_getUint8

See Also:

• Constant Field Values

Id_getInt16

private static final int Id_getInt16

See Also:

• Constant Field Values

Id_getUint16

private static final int Id_getUint16

See Also:

• Constant Field Values

Id_getInt32

private static final int Id_getInt32

See Also:

• Constant Field Values

Id_getUint32

private static final int Id_getUint32

See Also:

• Constant Field Values

Id_getFloat32

private static final int Id_getFloat32

See Also:

• Constant Field Values

Id_getFloat64

private static final int Id_getFloat64

See Also:

• Constant Field Values

Id_setInt8

private static final int Id_setInt8

See Also:

• Constant Field Values

Id_setUint8

private static final int Id_setUint8

See Also:

• Constant Field Values

Id_setInt16

private static final int Id_setInt16

See Also:

• Constant Field Values

Id_setUint16

private static final int Id_setUint16

See Also:

• Constant Field Values

Id_setInt32

private static final int Id_setInt32

See Also:

• Constant Field Values

Id_setUint32

private static final int Id_setUint32

See Also:

• Constant Field Values

Id_setFloat32

private static final int Id_setFloat32

See Also:

• Constant Field Values

Id_setFloat64

private static final int Id_setFloat64

See Also:

• Constant Field Values

MAX_PROTOTYPE_ID

private static final int MAX_PROTOTYPE_ID

See Also:

• Constant Field Values

Constructor Details

NativeDataView

public NativeDataView()

NativeDataView

public NativeDataView(NativeArrayBuffer ab,
 int offset,
 int length)

Method Details

getClassName

public String getClassName()

Description copied from class: ScriptableObject

Return the name of the class.

This is typically the same name as the constructor. Classes extending ScriptableObject must implement this abstract method.

Specified by:

getClassName in interface Scriptable

Specified by:

getClassName in class ScriptableObject

init

public static void init(Context cx,
 Scriptable scope,
 boolean sealed)

determinePos

private static int determinePos(Object[] args)

rangeCheck

private void rangeCheck(int pos,
 int len)

realThis

private static NativeDataView realThis(Scriptable thisObj,
 IdFunctionObject f)

js_constructor

private static NativeDataView js_constructor(Object[] args)

js_getInt

private Object js_getInt(int bytes,
 boolean signed,
 Object[] args)

js_getFloat

private Object js_getFloat(int bytes,
 Object[] args)

js_setInt

private void js_setInt(int bytes,
 boolean signed,
 Object[] args)

js_setFloat

private void js_setFloat(int bytes,
 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(String s)

Overrides:

findPrototypeId in class IdScriptableObject