Class JSObject

java.lang.Object

com.oracle.truffle.api.object.DynamicObject

com.oracle.truffle.js.runtime.objects.JSDynamicObject

com.oracle.truffle.js.runtime.objects.JSObject

All Implemented Interfaces:

com.oracle.truffle.api.interop.TruffleObject

Direct Known Subclasses:

JSClassObject

public abstract non-sealed class JSObject
extends JSDynamicObject

The common base class for all JavaScript objects (values of type Object according to the spec). Includes static methods for dealing with JS objects (internal methods).

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	JSObject.GetMembers

Nested classes/interfaces inherited from class com.oracle.truffle.js.runtime.objects.JSDynamicObject

JSDynamicObject.IsIdenticalOrUndefined

Nested classes/interfaces inherited from class com.oracle.truffle.api.object.DynamicObject

com.oracle.truffle.api.object.DynamicObject.DynamicField

Field Summary

Fields

Modifier and Type	Field	Description
static final com.oracle.truffle.api.strings.TruffleString	CONSTRUCTOR
protected static final String[]	EMPTY_STRING_ARRAY
static final com.oracle.truffle.api.strings.TruffleString	GET_PROTO_NAME
static final com.oracle.truffle.api.object.HiddenKey	HIDDEN_PROTO
static final com.oracle.truffle.api.strings.TruffleString	NO_SUCH_METHOD_NAME
static final com.oracle.truffle.api.strings.TruffleString	NO_SUCH_PROPERTY_NAME
static final com.oracle.truffle.api.strings.TruffleString	PROTO
static final com.oracle.truffle.api.strings.TruffleString	PROTOTYPE
static final com.oracle.truffle.api.strings.TruffleString	SET_PROTO_NAME

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	JSObject(com.oracle.truffle.api.object.Shape shape, JSDynamicObject proto)

Method Summary

Modifier and Type	Method	Description
protected JSObject	copyWithoutProperties(com.oracle.truffle.api.object.Shape shape)
static com.oracle.truffle.api.strings.TruffleString	defaultToString(JSDynamicObject obj)
static boolean	defineOwnProperty(JSDynamicObject obj, Object key, PropertyDescriptor desc)
static boolean	defineOwnProperty(JSDynamicObject obj, Object key, PropertyDescriptor desc, boolean doThrow)
static boolean	delete(JSDynamicObject obj, long index)
static boolean	delete(JSDynamicObject obj, long index, boolean isStrict)
static boolean	delete(JSDynamicObject obj, long index, boolean isStrict, JSClassProfile classProfile)
static boolean	delete(JSDynamicObject obj, Object key)
static boolean	delete(JSDynamicObject obj, Object key, boolean isStrict)
static boolean	delete(JSDynamicObject obj, Object key, boolean isStrict, JSClassProfile classProfile)
static List<com.oracle.truffle.api.strings.TruffleString>	enumerableOwnNames(JSDynamicObject thisObj)	7.3.21 EnumerableOwnNames (O).
protected static String[]	filterEnumerableNames(JSDynamicObject target, Iterable<Object> ownKeys, JSClass jsclass)
static Object	get(JSDynamicObject obj, long index)
static Object	get(JSDynamicObject obj, long index, JSClassProfile jsclassProfile)
static Object	get(JSDynamicObject obj, Object key)
static Object	get(JSDynamicObject obj, Object key, JSClassProfile jsclassProfile)
static ScriptArray	getArray(JSDynamicObject obj)
com.oracle.truffle.api.strings.TruffleString	getBuiltinToStringTag()	Returns builtinTag as per Object.prototype.toString().
static com.oracle.truffle.api.strings.TruffleString	getClassName(JSDynamicObject obj)	The property [[Class]] of the object.
Object	getIterator(com.oracle.truffle.api.interop.InteropLibrary self, JSInteropGetIteratorNode getIteratorNode)
static JSClass	getJSClass(JSDynamicObject obj)
static JSContext	getJSContext(JSDynamicObject obj)
final Class<? extends com.oracle.truffle.api.TruffleLanguage<?>>	getLanguage()
static Object	getMethod(JSDynamicObject obj, Object name)
static Object	getMethod(JSDynamicObject obj, Object receiver, Object name)
static Object	getOrDefault(JSDynamicObject obj, long index, Object receiver, Object defaultValue)
static Object	getOrDefault(JSDynamicObject obj, long index, Object receiver, Object defaultValue, JSClassProfile jsclassProfile, com.oracle.truffle.api.nodes.Node encapsulatingNode)
static Object	getOrDefault(JSDynamicObject obj, Object key, Object receiver, Object defaultValue)
static Object	getOrDefault(JSDynamicObject obj, Object key, Object receiver, Object defaultValue, JSClassProfile jsclassProfile, com.oracle.truffle.api.nodes.Node encapsulatingNode)
static PropertyDescriptor	getOwnProperty(JSDynamicObject obj, Object key)
static PropertyDescriptor	getOwnProperty(JSDynamicObject obj, Object key, JSClassProfile classProfile)
static JSDynamicObject	getPrototype(JSDynamicObject obj)
static JSDynamicObject	getPrototype(JSDynamicObject obj, JSClassProfile jsclassProfile)
static ReadElementNode	getUncachedRead()
static WriteElementNode	getUncachedWrite()
static Object	getWithReceiver(JSDynamicObject obj, Object key, Object receiver, com.oracle.truffle.api.nodes.Node encapsulatingNode)
static boolean	hasArray(Object obj)
boolean	hasIterator(com.oracle.truffle.api.interop.InteropLibrary self, JSInteropGetIteratorNode getIteratorNode)
final boolean	hasLanguage()
final boolean	hasMemberReadSideEffects(String key, KeyInfoNode keyInfo)
final boolean	hasMembers()
final boolean	hasMemberWriteSideEffects(String key, KeyInfoNode keyInfo)
static boolean	hasOwnProperty(JSDynamicObject obj, long index)
static boolean	hasOwnProperty(JSDynamicObject obj, long index, JSClassProfile classProfile)
static boolean	hasOwnProperty(JSDynamicObject obj, Object key)
static boolean	hasOwnProperty(JSDynamicObject obj, Object key, JSClassProfile classProfile)
static boolean	hasProperty(JSDynamicObject obj, long index)
static boolean	hasProperty(JSDynamicObject obj, long index, JSClassProfile classProfile)
static boolean	hasProperty(JSDynamicObject obj, Object key)
static boolean	hasProperty(JSDynamicObject obj, Object key, JSClassProfile classProfile)
final Object	invokeMember(String id, Object[] args, com.oracle.truffle.api.interop.InteropLibrary self, JSInteropInvokeNode callNode, com.oracle.truffle.api.strings.TruffleString.FromJavaStringNode fromJavaString, ExportValueNode exportNode)
static boolean	isExtensible(JSDynamicObject obj)
static boolean	isExtensible(JSDynamicObject obj, JSClassProfile classProfile)
static boolean	isJSObject(Object object)	Returns whether object is a proper JavaScript Object.
final boolean	isMemberInsertable(String key, KeyInfoNode keyInfo)
final boolean	isMemberInvocable(String key, KeyInfoNode keyInfo)
final boolean	isMemberModifiable(String key, KeyInfoNode keyInfo)
final boolean	isMemberReadable(String key, KeyInfoNode keyInfo)
final boolean	isMemberRemovable(String key, KeyInfoNode keyInfo)
static JavaScriptLanguage	language(com.oracle.truffle.api.interop.InteropLibrary node)
static Object	ordinaryToPrimitive(JSDynamicObject obj, JSToPrimitiveNode.Hint hint)	ES2018 7.1.1.1 OrdinaryToPrimitive.
static List<Object>	ownPropertyKeys(JSDynamicObject obj)	[[OwnPropertyKeys]].
static List<Object>	ownPropertyKeys(JSDynamicObject obj, JSClassProfile classProfile)
final Object	readMember(String key, com.oracle.truffle.api.interop.InteropLibrary self, ReadElementNode readNode, boolean bindMemberFunctions, com.oracle.truffle.api.strings.TruffleString.FromJavaStringNode fromJavaString, ExportValueNode exportNode)
final void	removeMember(String key, com.oracle.truffle.api.strings.TruffleString.FromJavaStringNode fromJavaString)
static boolean	set(JSDynamicObject obj, long index, Object value)
static boolean	set(JSDynamicObject obj, long index, Object value, boolean isStrict, com.oracle.truffle.api.nodes.Node encapsulatingNode)
static boolean	set(JSDynamicObject obj, Object key, Object value)
static boolean	set(JSDynamicObject obj, Object key, Object value, boolean isStrict, com.oracle.truffle.api.nodes.Node encapsulatingNode)
static void	setArray(JSDynamicObject obj, ScriptArray array)
static boolean	setPrototype(JSDynamicObject obj, JSDynamicObject newPrototype)
static boolean	setPrototype(JSDynamicObject obj, JSDynamicObject newPrototype, JSClassProfile jsclassProfile)
static boolean	setWithReceiver(JSDynamicObject obj, long index, Object value, Object receiver, boolean isStrict, JSClassProfile classProfile, com.oracle.truffle.api.nodes.Node encapsulatingNode)
static boolean	setWithReceiver(JSDynamicObject obj, Object key, Object value, Object receiver, boolean isStrict, JSClassProfile classProfile, com.oracle.truffle.api.nodes.Node encapsulatingNode)	[[Set]] with a receiver different than the default.
final Object	toDisplayString(boolean allowSideEffects)
static Object	toPrimitive(JSDynamicObject obj)
static Object	toPrimitive(JSDynamicObject obj, JSToPrimitiveNode.Hint hint)	ES2015 7.1.1 ToPrimitive in case an Object is passed.
final void	writeMember(String key, Object value, KeyInfoNode keyInfo, ImportValueNode castValueNode, WriteElementNode writeNode, com.oracle.truffle.api.strings.TruffleString.FromJavaStringNode fromJavaString)

Methods inherited from class com.oracle.truffle.js.runtime.objects.JSDynamicObject

defaultToString, defineOwnProperty, delete, delete, getClassName, getDynamicType, getHelper, getHelper, getJSClass, getJSContext, getJSSharedData, getMethodHelper, getObjectFlags, getOrDefault, getOrNull, getOwnHelper, getOwnHelper, getOwnProperty, getOwnPropertyKeys, getPropertyArray, getPropertyFlags, getPrototypeOf, getValue, getValue, hasOnlyShapeProperties, hasOwnProperty, hasOwnProperty, hasProperty, hasProperty, identityHashCode, isExtensible, isJSDynamicObject, ownPropertyKeys, preventExtensions, set, set, setIntegrityLevel, setJSClass, setObjectFlags, setPropertyFlags, setPrototypeOf, testIntegrityLevel, testProperties, toDisplayStringImpl, updatePropertyFlags

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

clone, getShape

Methods inherited from class java.lang.Object

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

Field Details

CONSTRUCTOR

public static final com.oracle.truffle.api.strings.TruffleString CONSTRUCTOR

PROTOTYPE

public static final com.oracle.truffle.api.strings.TruffleString PROTOTYPE

PROTO

public static final com.oracle.truffle.api.strings.TruffleString PROTO

GET_PROTO_NAME

public static final com.oracle.truffle.api.strings.TruffleString GET_PROTO_NAME

SET_PROTO_NAME

public static final com.oracle.truffle.api.strings.TruffleString SET_PROTO_NAME

HIDDEN_PROTO

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

NO_SUCH_PROPERTY_NAME

public static final com.oracle.truffle.api.strings.TruffleString NO_SUCH_PROPERTY_NAME

NO_SUCH_METHOD_NAME

public static final com.oracle.truffle.api.strings.TruffleString NO_SUCH_METHOD_NAME

EMPTY_STRING_ARRAY

protected static final String[] EMPTY_STRING_ARRAY

Constructor Details

JSObject

protected JSObject(com.oracle.truffle.api.object.Shape shape,
 JSDynamicObject proto)

Method Details

copyWithoutProperties

protected JSObject copyWithoutProperties(com.oracle.truffle.api.object.Shape shape)

isJSObject

public static boolean isJSObject(Object object)

Returns whether object is a proper JavaScript Object.

hasMembers

public final boolean hasMembers()

filterEnumerableNames

protected static String[] filterEnumerableNames(JSDynamicObject target,
 Iterable<Object> ownKeys,
 JSClass jsclass)

language

public static JavaScriptLanguage language(com.oracle.truffle.api.interop.InteropLibrary node)

readMember

public final Object readMember(String key,
 com.oracle.truffle.api.interop.InteropLibrary self,
 ReadElementNode readNode,
 boolean bindMemberFunctions,
 com.oracle.truffle.api.strings.TruffleString.FromJavaStringNode fromJavaString,
 ExportValueNode exportNode)
                        throws com.oracle.truffle.api.interop.UnknownIdentifierException

Throws:

com.oracle.truffle.api.interop.UnknownIdentifierException

isMemberReadable

public final boolean isMemberReadable(String key,
 KeyInfoNode keyInfo)

writeMember

public final void writeMember(String key,
 Object value,
 KeyInfoNode keyInfo,
 ImportValueNode castValueNode,
 WriteElementNode writeNode,
 com.oracle.truffle.api.strings.TruffleString.FromJavaStringNode fromJavaString)
                       throws com.oracle.truffle.api.interop.UnknownIdentifierException,
com.oracle.truffle.api.interop.UnsupportedMessageException

Throws:

com.oracle.truffle.api.interop.UnknownIdentifierException

com.oracle.truffle.api.interop.UnsupportedMessageException

isMemberModifiable

public final boolean isMemberModifiable(String key,
 KeyInfoNode keyInfo)

isMemberInsertable

public final boolean isMemberInsertable(String key,
 KeyInfoNode keyInfo)

removeMember

public final void removeMember(String key,
 com.oracle.truffle.api.strings.TruffleString.FromJavaStringNode fromJavaString)
                        throws com.oracle.truffle.api.interop.UnsupportedMessageException

Throws:

com.oracle.truffle.api.interop.UnsupportedMessageException

isMemberRemovable

public final boolean isMemberRemovable(String key,
 KeyInfoNode keyInfo)

invokeMember

public final Object invokeMember(String id,
 Object[] args,
 com.oracle.truffle.api.interop.InteropLibrary self,
 JSInteropInvokeNode callNode,
 com.oracle.truffle.api.strings.TruffleString.FromJavaStringNode fromJavaString,
 ExportValueNode exportNode)
                          throws com.oracle.truffle.api.interop.UnsupportedMessageException,
com.oracle.truffle.api.interop.UnknownIdentifierException

Throws:

com.oracle.truffle.api.interop.UnsupportedMessageException

com.oracle.truffle.api.interop.UnknownIdentifierException

isMemberInvocable

public final boolean isMemberInvocable(String key,
 KeyInfoNode keyInfo)

hasMemberReadSideEffects

public final boolean hasMemberReadSideEffects(String key,
 KeyInfoNode keyInfo)

hasMemberWriteSideEffects

public final boolean hasMemberWriteSideEffects(String key,
 KeyInfoNode keyInfo)

hasIterator

public boolean hasIterator(com.oracle.truffle.api.interop.InteropLibrary self,
 JSInteropGetIteratorNode getIteratorNode)

getIterator

public Object getIterator(com.oracle.truffle.api.interop.InteropLibrary self,
 JSInteropGetIteratorNode getIteratorNode)
                   throws com.oracle.truffle.api.interop.UnsupportedMessageException

Throws:

com.oracle.truffle.api.interop.UnsupportedMessageException

hasLanguage

public final boolean hasLanguage()

getLanguage

public final Class<? extends com.oracle.truffle.api.TruffleLanguage<?>> getLanguage()

toDisplayString

public final Object toDisplayString(boolean allowSideEffects)

getUncachedRead

public static ReadElementNode getUncachedRead()

getUncachedWrite

public static WriteElementNode getUncachedWrite()

getJSClass

public static JSClass getJSClass(JSDynamicObject obj)

getPrototype

public static JSDynamicObject getPrototype(JSDynamicObject obj)

getPrototype

public static JSDynamicObject getPrototype(JSDynamicObject obj,
 JSClassProfile jsclassProfile)

setPrototype

public static boolean setPrototype(JSDynamicObject obj,
 JSDynamicObject newPrototype)

setPrototype

public static boolean setPrototype(JSDynamicObject obj,
 JSDynamicObject newPrototype,
 JSClassProfile jsclassProfile)

get

public static Object get(JSDynamicObject obj,
 long index)

get

public static Object get(JSDynamicObject obj,
 Object key)

getMethod

public static Object getMethod(JSDynamicObject obj,
 Object name)

getMethod

public static Object getMethod(JSDynamicObject obj,
 Object receiver,
 Object name)

set

public static boolean set(JSDynamicObject obj,
 long index,
 Object value)

set

public static boolean set(JSDynamicObject obj,
 Object key,
 Object value)

set

public static boolean set(JSDynamicObject obj,
 long index,
 Object value,
 boolean isStrict,
 com.oracle.truffle.api.nodes.Node encapsulatingNode)

set

public static boolean set(JSDynamicObject obj,
 Object key,
 Object value,
 boolean isStrict,
 com.oracle.truffle.api.nodes.Node encapsulatingNode)

setWithReceiver

public static boolean setWithReceiver(JSDynamicObject obj,
 Object key,
 Object value,
 Object receiver,
 boolean isStrict,
 JSClassProfile classProfile,
 com.oracle.truffle.api.nodes.Node encapsulatingNode)

[[Set]] with a receiver different than the default.

setWithReceiver

public static boolean setWithReceiver(JSDynamicObject obj,
 long index,
 Object value,
 Object receiver,
 boolean isStrict,
 JSClassProfile classProfile,
 com.oracle.truffle.api.nodes.Node encapsulatingNode)

delete

public static boolean delete(JSDynamicObject obj,
 long index)

delete

public static boolean delete(JSDynamicObject obj,
 long index,
 boolean isStrict)

delete

public static boolean delete(JSDynamicObject obj,
 long index,
 boolean isStrict,
 JSClassProfile classProfile)

delete

public static boolean delete(JSDynamicObject obj,
 Object key)

delete

public static boolean delete(JSDynamicObject obj,
 Object key,
 boolean isStrict)

delete

public static boolean delete(JSDynamicObject obj,
 Object key,
 boolean isStrict,
 JSClassProfile classProfile)

hasOwnProperty

public static boolean hasOwnProperty(JSDynamicObject obj,
 long index)

hasOwnProperty

public static boolean hasOwnProperty(JSDynamicObject obj,
 long index,
 JSClassProfile classProfile)

hasOwnProperty

public static boolean hasOwnProperty(JSDynamicObject obj,
 Object key)

hasOwnProperty

public static boolean hasOwnProperty(JSDynamicObject obj,
 Object key,
 JSClassProfile classProfile)

hasProperty

public static boolean hasProperty(JSDynamicObject obj,
 long index)

hasProperty

public static boolean hasProperty(JSDynamicObject obj,
 long index,
 JSClassProfile classProfile)

hasProperty

public static boolean hasProperty(JSDynamicObject obj,
 Object key)

hasProperty

public static boolean hasProperty(JSDynamicObject obj,
 Object key,
 JSClassProfile classProfile)

getOwnProperty

public static PropertyDescriptor getOwnProperty(JSDynamicObject obj,
 Object key)

getOwnProperty

public static PropertyDescriptor getOwnProperty(JSDynamicObject obj,
 Object key,
 JSClassProfile classProfile)

ownPropertyKeys

public static List<Object> ownPropertyKeys(JSDynamicObject obj)

[[OwnPropertyKeys]]. The returned keys are instanceof (String, Symbol).

ownPropertyKeys

public static List<Object> ownPropertyKeys(JSDynamicObject obj,
 JSClassProfile classProfile)

enumerableOwnNames

public static List<com.oracle.truffle.api.strings.TruffleString> enumerableOwnNames(JSDynamicObject thisObj)

7.3.21 EnumerableOwnNames (O).

defineOwnProperty

public static boolean defineOwnProperty(JSDynamicObject obj,
 Object key,
 PropertyDescriptor desc)

defineOwnProperty

public static boolean defineOwnProperty(JSDynamicObject obj,
 Object key,
 PropertyDescriptor desc,
 boolean doThrow)

get

public static Object get(JSDynamicObject obj,
 Object key,
 JSClassProfile jsclassProfile)

get

public static Object get(JSDynamicObject obj,
 long index,
 JSClassProfile jsclassProfile)

getOrDefault

public static Object getOrDefault(JSDynamicObject obj,
 Object key,
 Object receiver,
 Object defaultValue,
 JSClassProfile jsclassProfile,
 com.oracle.truffle.api.nodes.Node encapsulatingNode)

getOrDefault

public static Object getOrDefault(JSDynamicObject obj,
 long index,
 Object receiver,
 Object defaultValue,
 JSClassProfile jsclassProfile,
 com.oracle.truffle.api.nodes.Node encapsulatingNode)

getOrDefault

public static Object getOrDefault(JSDynamicObject obj,
 Object key,
 Object receiver,
 Object defaultValue)

getOrDefault

public static Object getOrDefault(JSDynamicObject obj,
 long index,
 Object receiver,
 Object defaultValue)

getWithReceiver

public static Object getWithReceiver(JSDynamicObject obj,
 Object key,
 Object receiver,
 com.oracle.truffle.api.nodes.Node encapsulatingNode)

defaultToString

public static com.oracle.truffle.api.strings.TruffleString defaultToString(JSDynamicObject obj)

getBuiltinToStringTag

public com.oracle.truffle.api.strings.TruffleString getBuiltinToStringTag()

Returns builtinTag as per Object.prototype.toString(). By default returns "Object".

Specified by:

getBuiltinToStringTag in class JSDynamicObject

Returns:

built-in toStringTag

toPrimitive

public static Object toPrimitive(JSDynamicObject obj,
 JSToPrimitiveNode.Hint hint)

ES2015 7.1.1 ToPrimitive in case an Object is passed.

toPrimitive

public static Object toPrimitive(JSDynamicObject obj)

ordinaryToPrimitive

public static Object ordinaryToPrimitive(JSDynamicObject obj,
 JSToPrimitiveNode.Hint hint)

ES2018 7.1.1.1 OrdinaryToPrimitive.

isExtensible

public static boolean isExtensible(JSDynamicObject obj)

isExtensible

public static boolean isExtensible(JSDynamicObject obj,
 JSClassProfile classProfile)

getClassName

public static com.oracle.truffle.api.strings.TruffleString getClassName(JSDynamicObject obj)

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

Returns:

the internal property [[Class]] of the object.

getArray

public static ScriptArray getArray(JSDynamicObject obj)

setArray

public static void setArray(JSDynamicObject obj,
 ScriptArray array)

hasArray

public static boolean hasArray(Object obj)

getJSContext

public static JSContext getJSContext(JSDynamicObject obj)