Class NativeString

java.lang.Object

org.mozilla.javascript.ScriptableObject

org.mozilla.javascript.IdScriptableObject

org.mozilla.javascript.NativeString

All Implemented Interfaces:

Serializable, ConstProperties, DebuggableObject, IdFunctionCall, Scriptable, SymbolScriptable

final class NativeString
extends IdScriptableObject

This class implements the String native object.

See ECMA 15.5.

String methods for dealing with regular expressions are ported directly from C. Latest port is from version 1.40.12.19 in the JSFUN13_BRANCH.

Nested Class Summary

Nested classes/interfaces inherited from class ScriptableObject

ScriptableObject.KeyComparator

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	ConstructorId_charAt
private static final int	ConstructorId_charCodeAt
private static final int	ConstructorId_concat
private static final int	ConstructorId_equalsIgnoreCase
private static final int	ConstructorId_fromCharCode
private static final int	ConstructorId_fromCodePoint
private static final int	ConstructorId_indexOf
private static final int	ConstructorId_lastIndexOf
private static final int	ConstructorId_localeCompare
private static final int	ConstructorId_match
private static final int	ConstructorId_raw
private static final int	ConstructorId_replace
private static final int	ConstructorId_search
private static final int	ConstructorId_slice
private static final int	ConstructorId_split
private static final int	ConstructorId_substr
private static final int	ConstructorId_substring
private static final int	ConstructorId_toLocaleLowerCase
private static final int	ConstructorId_toLowerCase
private static final int	ConstructorId_toUpperCase
private static final int	Id_anchor
private static final int	Id_big
private static final int	Id_blink
private static final int	Id_bold
private static final int	Id_charAt
private static final int	Id_charCodeAt
private static final int	Id_codePointAt
private static final int	Id_concat
private static final int	Id_constructor
private static final int	Id_endsWith
private static final int	Id_equals
private static final int	Id_equalsIgnoreCase
private static final int	Id_fixed
private static final int	Id_fontcolor
private static final int	Id_fontsize
private static final int	Id_includes
private static final int	Id_indexOf
private static final int	Id_italics
private static final int	Id_lastIndexOf
private static final int	Id_length
private static final int	Id_link
private static final int	Id_localeCompare
private static final int	Id_match
private static final int	Id_normalize
private static final int	Id_padEnd
private static final int	Id_padStart
private static final int	Id_repeat
private static final int	Id_replace
private static final int	Id_search
private static final int	Id_slice
private static final int	Id_small
private static final int	Id_split
private static final int	Id_startsWith
private static final int	Id_strike
private static final int	Id_sub
private static final int	Id_substr
private static final int	Id_substring
private static final int	Id_sup
private static final int	Id_toLocaleLowerCase
private static final int	Id_toLocaleUpperCase
private static final int	Id_toLowerCase
private static final int	Id_toSource
private static final int	Id_toString
private static final int	Id_toUpperCase
private static final int	Id_trim
private static final int	Id_trimEnd
private static final int	Id_trimLeft
private static final int	Id_trimRight
private static final int	Id_trimStart
private static final int	Id_valueOf
private static final int	MAX_INSTANCE_ID
private static final int	MAX_PROTOTYPE_ID
private static final long	serialVersionUID
private CharSequence	string
private static final Object	STRING_TAG
private static final int	SymbolId_iterator

Fields inherited from class ScriptableObject

CONST, DONTENUM, EMPTY, PERMANENT, READONLY, UNINITIALIZED_CONST

Fields inherited from interface Scriptable

NOT_FOUND

Constructor Summary

Constructors

Constructor	Description
NativeString(CharSequence s)

Method Summary

Modifier and Type	Method	Description
private ScriptableObject	defaultIndexPropertyDescriptor(Object value)
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.
int	getAttributes(int index)	Get the attributes of an indexed property.
String	getClassName()	Return the name of the class.
protected Object[]	getIds(boolean nonEnumerable, boolean getSymbols)
protected String	getInstanceIdName(int id)	Map id back to property name it defines.
protected Object	getInstanceIdValue(int id)	Get id value.
(package private) int	getLength()
protected int	getMaxInstanceId()	Get maximum id findInstanceIdInfo can generate.
protected ScriptableObject	getOwnPropertyDescriptor(Context cx, Object id)
boolean	has(int index, Scriptable start)	Returns true if the property index is defined.
(package private) static void	init(Scriptable scope, boolean sealed)
protected void	initPrototypeId(int id)
private static String	js_concat(String target, Object[] args)
private static int	js_indexOf(int methodId, String target, Object[] args)
private static int	js_lastIndexOf(String target, Object[] args)
private static String	js_pad(Context cx, Scriptable thisObj, IdFunctionObject f, Object[] args, boolean atStart)
private static CharSequence	js_raw(Context cx, Scriptable scope, Object[] args)	String.raw (template, ...substitutions)
private static String	js_repeat(Context cx, Scriptable thisObj, IdFunctionObject f, Object[] args)
private static CharSequence	js_slice(CharSequence target, Object[] args)
private static CharSequence	js_substr(CharSequence target, Object[] args)
private static CharSequence	js_substring(Context cx, CharSequence target, Object[] args)
void	put(int index, Scriptable start, Object value)	Sets the value of the indexed property, creating it if need be.
private static NativeString	realThis(Scriptable thisObj, IdFunctionObject f)
private static String	tagify(Context cx, Scriptable thisObj, IdFunctionObject f, String tag, String attribute, Object[] args)
CharSequence	toCharSequence()
String	toString()

Methods inherited from class IdScriptableObject

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

Methods inherited from class ScriptableObject

addLazilyInitializedValue, applyDescriptorToAttributeBitset, associateValue, avoidObjectDetection, buildClassCtor, buildDataDescriptor, callMethod, callMethod, checkPropertyChange, checkPropertyDefinition, checkValidAttributes, defineClass, defineClass, defineClass, defineConst, defineConstProperty, defineFunctionProperties, defineOwnProperties, defineOwnProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, delete, deleteProperty, deleteProperty, ensureScriptable, ensureScriptableObject, ensureSymbolScriptable, equivalentValues, get, getAllIds, getArrayPrototype, getAssociatedValue, getAttributes, getAttributes, getClassPrototype, getDefaultValue, getDefaultValue, getExternalArrayData, getExternalArrayLength, getFunctionPrototype, getGeneratorFunctionPrototype, getGetterOrSetter, getGetterOrSetter, getIds, getObjectPrototype, getParentScope, getProperty, getProperty, getProperty, getPropertyIds, getPrototype, getTopLevelScope, getTopScopeValue, getTypedProperty, getTypedProperty, getTypeOf, hasInstance, hasProperty, hasProperty, hasProperty, isAccessorDescriptor, isConst, isDataDescriptor, isEmpty, 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, size

Methods inherited from class Object

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

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

STRING_TAG

private static final Object STRING_TAG

Id_length

private static final int Id_length

See Also:

• Constant Field Values

MAX_INSTANCE_ID

private static final int MAX_INSTANCE_ID

See Also:

• Constant Field Values

ConstructorId_fromCharCode

private static final int ConstructorId_fromCharCode

See Also:

• Constant Field Values

ConstructorId_fromCodePoint

private static final int ConstructorId_fromCodePoint

See Also:

• Constant Field Values

ConstructorId_raw

private static final int ConstructorId_raw

See Also:

• Constant Field Values

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_toSource

private static final int Id_toSource

See Also:

• Constant Field Values

Id_valueOf

private static final int Id_valueOf

See Also:

• Constant Field Values

Id_charAt

private static final int Id_charAt

See Also:

• Constant Field Values

Id_charCodeAt

private static final int Id_charCodeAt

See Also:

• Constant Field Values

Id_indexOf

private static final int Id_indexOf

See Also:

• Constant Field Values

Id_lastIndexOf

private static final int Id_lastIndexOf

See Also:

• Constant Field Values

Id_split

private static final int Id_split

See Also:

• Constant Field Values

Id_substring

private static final int Id_substring

See Also:

• Constant Field Values

Id_toLowerCase

private static final int Id_toLowerCase

See Also:

• Constant Field Values

Id_toUpperCase

private static final int Id_toUpperCase

See Also:

• Constant Field Values

Id_substr

private static final int Id_substr

See Also:

• Constant Field Values

Id_concat

private static final int Id_concat

See Also:

• Constant Field Values

Id_slice

private static final int Id_slice

See Also:

• Constant Field Values

Id_bold

private static final int Id_bold

See Also:

• Constant Field Values

Id_italics

private static final int Id_italics

See Also:

• Constant Field Values

Id_fixed

private static final int Id_fixed

See Also:

• Constant Field Values

Id_strike

private static final int Id_strike

See Also:

• Constant Field Values

Id_small

private static final int Id_small

See Also:

• Constant Field Values

Id_big

private static final int Id_big

See Also:

• Constant Field Values

Id_blink

private static final int Id_blink

See Also:

• Constant Field Values

Id_sup

private static final int Id_sup

See Also:

• Constant Field Values

Id_sub

private static final int Id_sub

See Also:

• Constant Field Values

Id_fontsize

private static final int Id_fontsize

See Also:

• Constant Field Values

Id_fontcolor

private static final int Id_fontcolor

See Also:

• Constant Field Values

Id_link

private static final int Id_link

See Also:

• Constant Field Values

Id_anchor

private static final int Id_anchor

See Also:

• Constant Field Values

Id_equals

private static final int Id_equals

See Also:

• Constant Field Values

Id_equalsIgnoreCase

private static final int Id_equalsIgnoreCase

See Also:

• Constant Field Values

Id_match

private static final int Id_match

See Also:

• Constant Field Values

Id_search

private static final int Id_search

See Also:

• Constant Field Values

Id_replace

private static final int Id_replace

See Also:

• Constant Field Values

Id_localeCompare

private static final int Id_localeCompare

See Also:

• Constant Field Values

Id_toLocaleLowerCase

private static final int Id_toLocaleLowerCase

See Also:

• Constant Field Values

Id_toLocaleUpperCase

private static final int Id_toLocaleUpperCase

See Also:

• Constant Field Values

Id_trim

private static final int Id_trim

See Also:

• Constant Field Values

Id_trimLeft

private static final int Id_trimLeft

See Also:

• Constant Field Values

Id_trimRight

private static final int Id_trimRight

See Also:

• Constant Field Values

Id_includes

private static final int Id_includes

See Also:

• Constant Field Values

Id_startsWith

private static final int Id_startsWith

See Also:

• Constant Field Values

Id_endsWith

private static final int Id_endsWith

See Also:

• Constant Field Values

Id_normalize

private static final int Id_normalize

See Also:

• Constant Field Values

Id_repeat

private static final int Id_repeat

See Also:

• Constant Field Values

Id_codePointAt

private static final int Id_codePointAt

See Also:

• Constant Field Values

Id_padStart

private static final int Id_padStart

See Also:

• Constant Field Values

Id_padEnd

private static final int Id_padEnd

See Also:

• Constant Field Values

SymbolId_iterator

private static final int SymbolId_iterator

See Also:

• Constant Field Values

Id_trimStart

private static final int Id_trimStart

See Also:

• Constant Field Values

Id_trimEnd

private static final int Id_trimEnd

See Also:

• Constant Field Values

MAX_PROTOTYPE_ID

private static final int MAX_PROTOTYPE_ID

See Also:

• Constant Field Values

ConstructorId_charAt

private static final int ConstructorId_charAt

See Also:

• Constant Field Values

ConstructorId_charCodeAt

private static final int ConstructorId_charCodeAt

See Also:

• Constant Field Values

ConstructorId_indexOf

private static final int ConstructorId_indexOf

See Also:

• Constant Field Values

ConstructorId_lastIndexOf

private static final int ConstructorId_lastIndexOf

See Also:

• Constant Field Values

ConstructorId_split

private static final int ConstructorId_split

See Also:

• Constant Field Values

ConstructorId_substring

private static final int ConstructorId_substring

See Also:

• Constant Field Values

ConstructorId_toLowerCase

private static final int ConstructorId_toLowerCase

See Also:

• Constant Field Values

ConstructorId_toUpperCase

private static final int ConstructorId_toUpperCase

See Also:

• Constant Field Values

ConstructorId_substr

private static final int ConstructorId_substr

See Also:

• Constant Field Values

ConstructorId_concat

private static final int ConstructorId_concat

See Also:

• Constant Field Values

ConstructorId_slice

private static final int ConstructorId_slice

See Also:

• Constant Field Values

ConstructorId_equalsIgnoreCase

private static final int ConstructorId_equalsIgnoreCase

See Also:

• Constant Field Values

ConstructorId_match

private static final int ConstructorId_match

See Also:

• Constant Field Values

ConstructorId_search

private static final int ConstructorId_search

See Also:

• Constant Field Values

ConstructorId_replace

private static final int ConstructorId_replace

See Also:

• Constant Field Values

ConstructorId_localeCompare

private static final int ConstructorId_localeCompare

See Also:

• Constant Field Values

ConstructorId_toLocaleLowerCase

private static final int ConstructorId_toLocaleLowerCase

See Also:

• Constant Field Values

string

private CharSequence string

Constructor Details

NativeString

NativeString(CharSequence s)

Method Details

init

static void init(Scriptable scope,
 boolean sealed)

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

getMaxInstanceId

protected int getMaxInstanceId()

Description copied from class: IdScriptableObject

Get maximum id findInstanceIdInfo can generate.

Overrides:

getMaxInstanceId in class IdScriptableObject

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 IdScriptableObject

getInstanceIdName

protected String getInstanceIdName(int id)

Description copied from class: IdScriptableObject

Map id back to property name it defines.

Overrides:

getInstanceIdName in class IdScriptableObject

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 IdScriptableObject

fillConstructorProperties

protected void fillConstructorProperties(IdFunctionObject ctor)

Overrides:

fillConstructorProperties in class IdScriptableObject

initPrototypeId

protected void initPrototypeId(int id)

Overrides:

initPrototypeId in class IdScriptableObject

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

realThis

private static NativeString realThis(Scriptable thisObj,
 IdFunctionObject f)

tagify

private static String tagify(Context cx,
 Scriptable thisObj,
 IdFunctionObject f,
 String tag,
 String attribute,
 Object[] args)

toCharSequence

public CharSequence toCharSequence()

toString

public String toString()

Overrides:

toString in class Object

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)

put

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

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

value - 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)

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)

getAttributes

public int getAttributes(int index)

Description copied from class: ScriptableObject

Get the attributes of an indexed property.

Overrides:

getAttributes in class ScriptableObject

Parameters:

index - the numeric index for the property

Returns:

the bitset of attributes

See Also:

• ScriptableObject.has(String, Scriptable)
• ScriptableObject.READONLY
• ScriptableObject.DONTENUM
• ScriptableObject.PERMANENT
• ScriptableObject.EMPTY

getIds

protected Object[] getIds(boolean nonEnumerable,
 boolean getSymbols)

Overrides:

getIds in class IdScriptableObject

getOwnPropertyDescriptor

protected ScriptableObject getOwnPropertyDescriptor(Context cx,
 Object id)

Overrides:

getOwnPropertyDescriptor in class IdScriptableObject

defaultIndexPropertyDescriptor

private ScriptableObject defaultIndexPropertyDescriptor(Object value)

js_indexOf

private static int js_indexOf(int methodId,
 String target,
 Object[] args)

js_lastIndexOf

private static int js_lastIndexOf(String target,
 Object[] args)

js_substring

private static CharSequence js_substring(Context cx,
 CharSequence target,
 Object[] args)

getLength

int getLength()

js_substr

private static CharSequence js_substr(CharSequence target,
 Object[] args)

js_concat

private static String js_concat(String target,
 Object[] args)

js_slice

private static CharSequence js_slice(CharSequence target,
 Object[] args)

js_repeat

private static String js_repeat(Context cx,
 Scriptable thisObj,
 IdFunctionObject f,
 Object[] args)

js_pad

private static String js_pad(Context cx,
 Scriptable thisObj,
 IdFunctionObject f,
 Object[] args,
 boolean atStart)

findPrototypeId

protected int findPrototypeId(Symbol k)

Overrides:

findPrototypeId in class IdScriptableObject

js_raw

private static CharSequence js_raw(Context cx,
 Scriptable scope,
 Object[] args)

String.raw (template, ...substitutions)

22.1.2.4 String.raw [Draft ECMA-262 / April 28, 2021]

findPrototypeId

protected int findPrototypeId(String s)

Overrides:

findPrototypeId in class IdScriptableObject