Class JSObjectUtil

java.lang.Object

com.oracle.truffle.js.runtime.objects.JSObjectUtil

public final class JSObjectUtil
extends Object

See Also:

• JSObject
• JSDynamicObject

Method Summary

Modifier and Type	Method	Description
static void	changePropertyFlags(JSDynamicObject thisObj, Object key, int flags)
static <T> T	checkForNoSuchPropertyOrMethod(JSContext context, T key)
static <T extends JSDynamicObject> T	copyProperties(T target, JSDynamicObject source)
static JSObject	createOrdinaryPrototypeObject(JSRealm realm)
static JSObject	createOrdinaryPrototypeObject(JSRealm realm, JSDynamicObject prototype)
static void	defineAccessorProperty(JSContext context, JSDynamicObject thisObj, Object key, Accessor accessor, int flags)
static void	defineAccessorProperty(JSContext context, JSDynamicObject thisObj, Object key, JSDynamicObject getter, JSDynamicObject setter, int flags)
static void	defineAccessorProperty(JSDynamicObject thisObj, Object key, Accessor accessor, int flags)
static void	defineConstantDataProperty(JSContext context, JSDynamicObject thisObj, Object key, Object value, int flags)
static void	defineDataProperty(JSContext context, JSDynamicObject thisObj, Object key, Object value, int flags)
static void	defineDataProperty(JSDynamicObject thisObj, Object key, Object value, int flags)
static void	defineProxyProperty(JSDynamicObject thisObj, Object key, PropertyProxy proxy, int flags)
static com.oracle.truffle.api.strings.TruffleString	formatToString(com.oracle.truffle.api.strings.TruffleString object)	Formats JSDynamicObject.defaultToString(), by default returns "[object ...]".
static Object	getHiddenProperty(JSDynamicObject obj, Object key)
static com.oracle.truffle.api.object.Shape	getProtoChildShape(JSDynamicObject obj, JSClass jsclass, JSContext context)	Get or create a prototype child shape inheriting from this object, migrating the object to a unique shape in the process.
static com.oracle.truffle.api.object.Shape	getProtoChildShape(JSDynamicObject obj, JSClass jsclass, JSContext context, com.oracle.truffle.api.nodes.Node node, com.oracle.truffle.api.profiles.InlinedBranchProfile branchProfile)
static JSDynamicObject	getPrototype(JSDynamicObject thisObj)
static boolean	hasHiddenProperty(JSDynamicObject obj, Object key)
static boolean	isNoSuchPropertyOrMethod(Object key)
static boolean	isValidPrototype(Object proto)
static void	putAccessorsFromContainer(JSRealm realm, JSDynamicObject thisObj, JSBuiltinsContainer container)
static void	putBuiltinAccessorProperty(JSDynamicObject thisObj, Object key, Accessor accessor)
static void	putBuiltinAccessorProperty(JSDynamicObject thisObj, Object key, Accessor accessor, int flags)	Adds a new accessor property with a known key that does not need to be checked against any assumptions, i.e.
static void	putBuiltinAccessorProperty(JSDynamicObject thisObj, Object key, JSDynamicObject getter, JSDynamicObject setter)
static void	putBuiltinAccessorProperty(JSDynamicObject thisObj, Object key, JSDynamicObject getter, JSDynamicObject setter, int flags)
static void	putConstructorProperty(JSDynamicObject prototype, JSDynamicObject constructor)
static void	putConstructorPrototypeProperty(JSDynamicObject constructor, JSDynamicObject prototype)
static void	putDataProperty(JSDynamicObject thisObj, Object name, Object value)
static void	putDataProperty(JSDynamicObject thisObj, Object key, Object value, int flags)	Adds a new data property with a known key that does not need to be checked against any assumptions, i.e.
static void	putFunctionFromContainer(JSRealm realm, JSDynamicObject thisObj, JSBuiltinsContainer container, Object key)
static void	putFunctionsFromContainer(JSRealm realm, JSDynamicObject thisObj, JSBuiltinsContainer container)
static void	putHiddenProperty(JSDynamicObject obj, Object key, Object value)
static JSPrototypeData	putPrototypeData(JSDynamicObject obj)
static void	putProxyProperty(JSDynamicObject thisObj, Object key, PropertyProxy proxy, int flags)
static void	putToStringTag(JSDynamicObject prototype, com.oracle.truffle.api.strings.TruffleString toStringTag)
static void	setOrVerifyPrototype(JSContext context, JSDynamicObject obj, JSDynamicObject prototype)
static void	setPrototypeImpl(JSDynamicObject object, JSDynamicObject newPrototype)

Methods inherited from class Object

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

Method Details

formatToString

public static com.oracle.truffle.api.strings.TruffleString formatToString(com.oracle.truffle.api.strings.TruffleString object)

Formats JSDynamicObject.defaultToString(), by default returns "[object ...]".

Parameters:

object - object to be used

Returns:

"[object ...]" by default

createOrdinaryPrototypeObject

public static JSObject createOrdinaryPrototypeObject(JSRealm realm)

createOrdinaryPrototypeObject

public static JSObject createOrdinaryPrototypeObject(JSRealm realm,
 JSDynamicObject prototype)

setOrVerifyPrototype

public static void setOrVerifyPrototype(JSContext context,
 JSDynamicObject obj,
 JSDynamicObject prototype)

isValidPrototype

public static boolean isValidPrototype(Object proto)

defineDataProperty

public static void defineDataProperty(JSContext context,
 JSDynamicObject thisObj,
 Object key,
 Object value,
 int flags)

defineDataProperty

public static void defineDataProperty(JSDynamicObject thisObj,
 Object key,
 Object value,
 int flags)

defineAccessorProperty

public static void defineAccessorProperty(JSDynamicObject thisObj,
 Object key,
 Accessor accessor,
 int flags)

defineAccessorProperty

public static void defineAccessorProperty(JSContext context,
 JSDynamicObject thisObj,
 Object key,
 Accessor accessor,
 int flags)

defineAccessorProperty

public static void defineAccessorProperty(JSContext context,
 JSDynamicObject thisObj,
 Object key,
 JSDynamicObject getter,
 JSDynamicObject setter,
 int flags)

defineProxyProperty

public static void defineProxyProperty(JSDynamicObject thisObj,
 Object key,
 PropertyProxy proxy,
 int flags)

changePropertyFlags

public static void changePropertyFlags(JSDynamicObject thisObj,
 Object key,
 int flags)

defineConstantDataProperty

public static void defineConstantDataProperty(JSContext context,
 JSDynamicObject thisObj,
 Object key,
 Object value,
 int flags)

putDataProperty

public static void putDataProperty(JSDynamicObject thisObj,
 Object key,
 Object value,
 int flags)

Adds a new data property with a known key that does not need to be checked against any assumptions, i.e. the key is neither "__noSuchProperty__" nor "__noSuchMethod__".

putDataProperty

public static void putDataProperty(JSDynamicObject thisObj,
 Object name,
 Object value)

putConstructorProperty

public static void putConstructorProperty(JSDynamicObject prototype,
 JSDynamicObject constructor)

putConstructorPrototypeProperty

public static void putConstructorPrototypeProperty(JSDynamicObject constructor,
 JSDynamicObject prototype)

putToStringTag

public static void putToStringTag(JSDynamicObject prototype,
 com.oracle.truffle.api.strings.TruffleString toStringTag)

putBuiltinAccessorProperty

public static void putBuiltinAccessorProperty(JSDynamicObject thisObj,
 Object key,
 JSDynamicObject getter,
 JSDynamicObject setter)

putBuiltinAccessorProperty

public static void putBuiltinAccessorProperty(JSDynamicObject thisObj,
 Object key,
 JSDynamicObject getter,
 JSDynamicObject setter,
 int flags)

putBuiltinAccessorProperty

public static void putBuiltinAccessorProperty(JSDynamicObject thisObj,
 Object key,
 Accessor accessor,
 int flags)

Adds a new accessor property with a known key that does not need to be checked against any assumptions, i.e. the key is neither "__noSuchProperty__" nor "__noSuchMethod__".

putBuiltinAccessorProperty

public static void putBuiltinAccessorProperty(JSDynamicObject thisObj,
 Object key,
 Accessor accessor)

putProxyProperty

public static void putProxyProperty(JSDynamicObject thisObj,
 Object key,
 PropertyProxy proxy,
 int flags)

getProtoChildShape

public static com.oracle.truffle.api.object.Shape getProtoChildShape(JSDynamicObject obj,
 JSClass jsclass,
 JSContext context)

Get or create a prototype child shape inheriting from this object, migrating the object to a unique shape in the process. Creating unique shapes should be avoided in the fast path.

getProtoChildShape

public static com.oracle.truffle.api.object.Shape getProtoChildShape(JSDynamicObject obj,
 JSClass jsclass,
 JSContext context,
 com.oracle.truffle.api.nodes.Node node,
 com.oracle.truffle.api.profiles.InlinedBranchProfile branchProfile)

putPrototypeData

public static JSPrototypeData putPrototypeData(JSDynamicObject obj)

setPrototypeImpl

public static void setPrototypeImpl(JSDynamicObject object,
 JSDynamicObject newPrototype)

getPrototype

public static JSDynamicObject getPrototype(JSDynamicObject thisObj)

checkForNoSuchPropertyOrMethod

public static <T> T checkForNoSuchPropertyOrMethod(JSContext context,
 T key)

isNoSuchPropertyOrMethod

public static boolean isNoSuchPropertyOrMethod(Object key)

putFunctionFromContainer

public static void putFunctionFromContainer(JSRealm realm,
 JSDynamicObject thisObj,
 JSBuiltinsContainer container,
 Object key)

putFunctionsFromContainer

public static void putFunctionsFromContainer(JSRealm realm,
 JSDynamicObject thisObj,
 JSBuiltinsContainer container)

putAccessorsFromContainer

public static void putAccessorsFromContainer(JSRealm realm,
 JSDynamicObject thisObj,
 JSBuiltinsContainer container)

putHiddenProperty

public static void putHiddenProperty(JSDynamicObject obj,
 Object key,
 Object value)

getHiddenProperty

public static Object getHiddenProperty(JSDynamicObject obj,
 Object key)

hasHiddenProperty

public static boolean hasHiddenProperty(JSDynamicObject obj,
 Object key)

copyProperties

public static <T extends JSDynamicObject> T copyProperties(T target,
 JSDynamicObject source)