com.oracle.truffle.js.runtime.builtins

Class JSString

java.lang.Object

com.oracle.truffle.api.object.ObjectType

com.oracle.truffle.js.runtime.builtins.JSClass

com.oracle.truffle.js.runtime.builtins.JSNonProxy

com.oracle.truffle.js.runtime.builtins.JSPrimitive

com.oracle.truffle.js.runtime.builtins.JSString

All Implemented Interfaces:

JSConstructorFactory, JSConstructorFactory.WithFunctions, PrototypeSupplier

public final class JSString
extends JSPrimitive
implements JSConstructorFactory.WithFunctions

Property Summary

Type	Property and Description
boolean	usesOrdinaryGetOwn

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	JSString.StringLengthProxyProperty

Nested classes/interfaces inherited from interface com.oracle.truffle.js.runtime.builtins.JSConstructorFactory

JSConstructorFactory.Default, JSConstructorFactory.WithFunctions, JSConstructorFactory.WithFunctionsAndSpecies

Field Summary

Fields

Modifier and Type	Field and Description
static String	CLASS_NAME
static String	CLASS_NAME_EXTENSIONS
static JSString	INSTANCE
static com.oracle.truffle.api.object.HiddenKey	ITERATED_STRING_ID
static String	ITERATOR_CLASS_NAME
static String	ITERATOR_PROTOTYPE_NAME
static String	LENGTH
static String	PROTOTYPE_NAME
static String	REGEXP_ITERATOR_CLASS_NAME
static com.oracle.truffle.api.object.HiddenKey	REGEXP_ITERATOR_DONE_ID
static com.oracle.truffle.api.object.HiddenKey	REGEXP_ITERATOR_GLOBAL_ID
static com.oracle.truffle.api.object.HiddenKey	REGEXP_ITERATOR_ITERATED_STRING_ID
static com.oracle.truffle.api.object.HiddenKey	REGEXP_ITERATOR_ITERATING_REGEXP_ID
static String	REGEXP_ITERATOR_PROTOTYPE_NAME
static com.oracle.truffle.api.object.HiddenKey	REGEXP_ITERATOR_UNICODE_ID
static com.oracle.truffle.api.object.HiddenKey	STRING_ITERATOR_NEXT_INDEX_ID
static String	TYPE_NAME

Fields inherited from class com.oracle.truffle.js.runtime.builtins.JSClass

EMPTY_STRING_ARRAY

Method Summary

Modifier and Type	Method and Description
static com.oracle.truffle.api.object.DynamicObject	create(JSContext context, CharSequence value)
static JSConstructor	createConstructor(JSRealm realm)
com.oracle.truffle.api.object.DynamicObject	createPrototype(JSRealm realm, com.oracle.truffle.api.object.DynamicObject ctor)
boolean	defineOwnProperty(com.oracle.truffle.api.object.DynamicObject thisObj, Object key, PropertyDescriptor desc, boolean doThrow) 9.1.6 [[DefineOwnProperty]] (P, Desc).
boolean	delete(com.oracle.truffle.api.object.DynamicObject thisObj, Object key, boolean isStrict) 9.1.10 [[Delete]] (P).
String	getBuiltinToStringTag(com.oracle.truffle.api.object.DynamicObject object) Returns builtinTag from step 14 of ES6+ 19.1.3.6.
static CharSequence	getCharSequence(com.oracle.truffle.api.object.DynamicObject obj)
String	getClassName()
String	getClassName(com.oracle.truffle.api.object.DynamicObject object) The [[Class]] internal property.
com.oracle.truffle.api.object.DynamicObject	getIntrinsicDefaultProto(JSRealm realm)
Object	getOwnHelper(com.oracle.truffle.api.object.DynamicObject store, Object thisObj, long index) Like getOwnProperty, but returns null if value is not present instead of undefined.
Object	getOwnHelper(com.oracle.truffle.api.object.DynamicObject store, Object thisObj, Object key) Like getOwnProperty, but returns null if value is not present instead of undefined.
PropertyDescriptor	getOwnProperty(com.oracle.truffle.api.object.DynamicObject thisObj, Object key) 9.1.5 [[GetOwnProperty]] (P).
List<Object>	getOwnPropertyKeys(com.oracle.truffle.api.object.DynamicObject thisObj, boolean strings, boolean symbols) GetOwnPropertyKeys (O, type).
static String	getString(com.oracle.truffle.api.object.DynamicObject obj)
static int	getStringLength(com.oracle.truffle.api.object.DynamicObject obj)
boolean	hasOwnProperty(com.oracle.truffle.api.object.DynamicObject thisObj, long index)
boolean	hasOwnProperty(com.oracle.truffle.api.object.DynamicObject thisObj, Object key)
static boolean	isJSString(Object obj)
com.oracle.truffle.api.object.Shape	makeInitialShape(JSContext context, com.oracle.truffle.api.object.DynamicObject prototype)
boolean	set(com.oracle.truffle.api.object.DynamicObject thisObj, long index, Object value, Object receiver, boolean isStrict)
boolean	set(com.oracle.truffle.api.object.DynamicObject thisObj, Object key, Object value, Object receiver, boolean isStrict) 9.1.9 [[Set]] (P, V, Receiver).
static PropertyDescriptor	stringGetIndexProperty(com.oracle.truffle.api.object.DynamicObject thisObj, Object key) ES6, 9.4.3.1.1 StringGetIndexProperty (S, P).
String	toDisplayStringImpl(com.oracle.truffle.api.object.DynamicObject obj, int depth, boolean allowSideEffects, JSContext context) A more informative toString variant, mainly used for error messages.
boolean	usesOrdinaryGetOwnProperty()

Methods inherited from class com.oracle.truffle.js.runtime.builtins.JSPrimitive

getHelper, getMethodHelper

Methods inherited from class com.oracle.truffle.js.runtime.builtins.JSNonProxy

checkProtoCycle, createSymbolSpeciesGetterFunction, delete, deletePropertyDefault, getHelper, getPrototypeOf, hasOnlyShapeProperties, hasProperty, hasProperty, invokeAccessorPropertySetter, isExtensible, ordinaryGetOwnProperty, ordinaryGetOwnPropertyIntl, ordinaryOwnPropertyKeys, ordinaryOwnPropertyKeys, ordinaryOwnPropertyKeysSlow, ordinarySet, ordinarySetIndex, ordinarySetWithReceiver, performOrdinarySetWithOwnDescriptor, preventExtensions, preventExtensionsImpl, putConstructorSpeciesGetter, setIntegrityLevel, setIntegrityLevelFast, setPropertySlow, setPrototypeOf, testIntegrityLevel, testIntegrityLevelFast, toString, usesOrdinaryIsExtensible

Methods inherited from class com.oracle.truffle.js.runtime.builtins.JSClass

defaultToString, filterOwnPropertyKeys, formatToString, get, get, getToStringTag, isInstance, isInstance, isInstance, isInstance, ownPropertyKeys, testIntegrityLevelDefault

Methods inherited from class com.oracle.truffle.api.object.ObjectType

dispatch, equals, hashCode, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.oracle.truffle.js.runtime.builtins.JSConstructorFactory.WithFunctions

createConstructorAndPrototype

Methods inherited from interface com.oracle.truffle.js.runtime.builtins.JSConstructorFactory

createConstructorObject, fillConstructor

Property Detail

usesOrdinaryGetOwn

public boolean usesOrdinaryGetOwnProperty

Overrides:

usesOrdinaryGetOwnProperty in class JSNonProxy

Field Detail

INSTANCE

public static final JSString INSTANCE

TYPE_NAME

public static final String TYPE_NAME

See Also:

Constant Field Values

CLASS_NAME

public static final String CLASS_NAME

See Also:

Constant Field Values

PROTOTYPE_NAME

public static final String PROTOTYPE_NAME

See Also:

Constant Field Values

CLASS_NAME_EXTENSIONS

public static final String CLASS_NAME_EXTENSIONS

See Also:

Constant Field Values

LENGTH

public static final String LENGTH

See Also:

Constant Field Values

ITERATOR_CLASS_NAME

public static final String ITERATOR_CLASS_NAME

See Also:

Constant Field Values

ITERATOR_PROTOTYPE_NAME

public static final String ITERATOR_PROTOTYPE_NAME

See Also:

Constant Field Values

ITERATED_STRING_ID

public static final com.oracle.truffle.api.object.HiddenKey ITERATED_STRING_ID

STRING_ITERATOR_NEXT_INDEX_ID

public static final com.oracle.truffle.api.object.HiddenKey STRING_ITERATOR_NEXT_INDEX_ID

REGEXP_ITERATOR_CLASS_NAME

public static final String REGEXP_ITERATOR_CLASS_NAME

See Also:

Constant Field Values

REGEXP_ITERATOR_PROTOTYPE_NAME

public static final String REGEXP_ITERATOR_PROTOTYPE_NAME

See Also:

Constant Field Values

REGEXP_ITERATOR_ITERATING_REGEXP_ID

public static final com.oracle.truffle.api.object.HiddenKey REGEXP_ITERATOR_ITERATING_REGEXP_ID

REGEXP_ITERATOR_ITERATED_STRING_ID

public static final com.oracle.truffle.api.object.HiddenKey REGEXP_ITERATOR_ITERATED_STRING_ID

REGEXP_ITERATOR_GLOBAL_ID

public static final com.oracle.truffle.api.object.HiddenKey REGEXP_ITERATOR_GLOBAL_ID

REGEXP_ITERATOR_UNICODE_ID

public static final com.oracle.truffle.api.object.HiddenKey REGEXP_ITERATOR_UNICODE_ID

REGEXP_ITERATOR_DONE_ID

public static final com.oracle.truffle.api.object.HiddenKey REGEXP_ITERATOR_DONE_ID

Method Detail

create

public static com.oracle.truffle.api.object.DynamicObject create(JSContext context,
                                                                 CharSequence value)

hasOwnProperty

public boolean hasOwnProperty(com.oracle.truffle.api.object.DynamicObject thisObj,
                              Object key)

Overrides:

hasOwnProperty in class JSNonProxy

getCharSequence

public static CharSequence getCharSequence(com.oracle.truffle.api.object.DynamicObject obj)

getString

public static String getString(com.oracle.truffle.api.object.DynamicObject obj)

getStringLength

public static int getStringLength(com.oracle.truffle.api.object.DynamicObject obj)

hasOwnProperty

public boolean hasOwnProperty(com.oracle.truffle.api.object.DynamicObject thisObj,
                              long index)

Overrides:

hasOwnProperty in class JSNonProxy

getOwnHelper

public Object getOwnHelper(com.oracle.truffle.api.object.DynamicObject store,
                           Object thisObj,
                           Object key)

Description copied from class: JSNonProxy

Like getOwnProperty, but returns null if value is not present instead of undefined.

Overrides:

getOwnHelper in class JSNonProxy

getOwnHelper

public Object getOwnHelper(com.oracle.truffle.api.object.DynamicObject store,
                           Object thisObj,
                           long index)

Description copied from class: JSNonProxy

Like getOwnProperty, but returns null if value is not present instead of undefined.

Overrides:

getOwnHelper in class JSNonProxy

set

public boolean set(com.oracle.truffle.api.object.DynamicObject thisObj,
                   Object key,
                   Object value,
                   Object receiver,
                   boolean isStrict)

Description copied from class: JSClass

9.1.9 [[Set]] (P, V, Receiver).

Overrides:

set in class JSNonProxy

set

public boolean set(com.oracle.truffle.api.object.DynamicObject thisObj,
                   long index,
                   Object value,
                   Object receiver,
                   boolean isStrict)

Overrides:

set in class JSNonProxy

getOwnPropertyKeys

public List<Object> getOwnPropertyKeys(com.oracle.truffle.api.object.DynamicObject thisObj,
                                       boolean strings,
                                       boolean symbols)

Description copied from class: JSClass

GetOwnPropertyKeys (O, type).

Overrides:

getOwnPropertyKeys in class JSNonProxy

Returns:

a List of the keys of all own properties of that object with the specified types

delete

public boolean delete(com.oracle.truffle.api.object.DynamicObject thisObj,
                      Object key,
                      boolean isStrict)

Description copied from class: JSClass

9.1.10 [[Delete]] (P).

Overrides:

delete in class JSNonProxy

createPrototype

public com.oracle.truffle.api.object.DynamicObject createPrototype(JSRealm realm,
                                                                   com.oracle.truffle.api.object.DynamicObject ctor)

Specified by:

createPrototype in interface JSConstructorFactory

makeInitialShape

public com.oracle.truffle.api.object.Shape makeInitialShape(JSContext context,
                                                            com.oracle.truffle.api.object.DynamicObject prototype)

Overrides:

makeInitialShape in class JSClass

createConstructor

public static JSConstructor createConstructor(JSRealm realm)

getClassName

public String getClassName()

Specified by:

getClassName in interface JSConstructorFactory

getClassName

public String getClassName(com.oracle.truffle.api.object.DynamicObject object)

Description copied from class: JSClass

The [[Class]] internal property. For ES5, this is the second part of what Object.prototype.toString.call(myObj) returns, e.g. "[object Array]".

Specified by:

getClassName in class JSClass

Parameters:

object - object to be used

getBuiltinToStringTag

public String getBuiltinToStringTag(com.oracle.truffle.api.object.DynamicObject object)

Description copied from class: JSClass

Returns builtinTag from step 14 of ES6+ 19.1.3.6. By default returns "Object".

Overrides:

getBuiltinToStringTag in class JSNonProxy

Parameters:

object - object to be used

Returns:

"Object" by default

See Also:

JSClass.defaultToString(DynamicObject)

toDisplayStringImpl

public String toDisplayStringImpl(com.oracle.truffle.api.object.DynamicObject obj,
                                  int depth,
                                  boolean allowSideEffects,
                                  JSContext context)

Description copied from class: JSClass

A more informative toString variant, mainly used for error messages.

Overrides:

toDisplayStringImpl in class JSNonProxy

depth - allowed nesting depth

context - the current language context

isJSString

public static boolean isJSString(Object obj)

getOwnProperty

public PropertyDescriptor getOwnProperty(com.oracle.truffle.api.object.DynamicObject thisObj,
                                         Object key)

Description copied from class: JSClass

9.1.5 [[GetOwnProperty]] (P).

Overrides:

getOwnProperty in class JSNonProxy

usesOrdinaryGetOwnProperty

public boolean usesOrdinaryGetOwnProperty()

Overrides:

usesOrdinaryGetOwnProperty in class JSNonProxy

defineOwnProperty

public boolean defineOwnProperty(com.oracle.truffle.api.object.DynamicObject thisObj,
                                 Object key,
                                 PropertyDescriptor desc,
                                 boolean doThrow)

Description copied from class: JSClass

9.1.6 [[DefineOwnProperty]] (P, Desc).

Overrides:

defineOwnProperty in class JSNonProxy

stringGetIndexProperty

public static PropertyDescriptor stringGetIndexProperty(com.oracle.truffle.api.object.DynamicObject thisObj,
                                                        Object key)

ES6, 9.4.3.1.1 StringGetIndexProperty (S, P).

getIntrinsicDefaultProto

public com.oracle.truffle.api.object.DynamicObject getIntrinsicDefaultProto(JSRealm realm)

Specified by:

getIntrinsicDefaultProto in interface PrototypeSupplier