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// Copyright 2019 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
namespace reflect {
// ES6 section 26.1.10 Reflect.isExtensible
transitioning javascript builtin
ReflectIsExtensible(js-implicit context: NativeContext)(object: JSAny): JSAny {
const objectJSReceiver = Cast<JSReceiver>(object)
otherwise ThrowTypeError(
MessageTemplate::kCalledOnNonObject, 'Reflect.isExtensible');
return object::ObjectIsExtensibleImpl(objectJSReceiver);
}
// ES6 section 26.1.12 Reflect.preventExtensions
transitioning javascript builtin
ReflectPreventExtensions(js-implicit context: NativeContext)(object: JSAny):
JSAny {
const objectJSReceiver = Cast<JSReceiver>(object)
otherwise ThrowTypeError(
MessageTemplate::kCalledOnNonObject, 'Reflect.preventExtensions');
return object::ObjectPreventExtensionsDontThrow(objectJSReceiver);
}
// ES6 section 26.1.8 Reflect.getPrototypeOf
transitioning javascript builtin
ReflectGetPrototypeOf(js-implicit context: NativeContext)(object: JSAny):
JSAny {
const objectJSReceiver = Cast<JSReceiver>(object)
otherwise ThrowTypeError(
MessageTemplate::kCalledOnNonObject, 'Reflect.getPrototypeOf');
return object::JSReceiverGetPrototypeOf(objectJSReceiver);
}
// ES6 section 26.1.14 Reflect.setPrototypeOf
transitioning javascript builtin ReflectSetPrototypeOf(
js-implicit context: NativeContext)(object: JSAny, proto: JSAny): JSAny {
const objectJSReceiver = Cast<JSReceiver>(object)
otherwise ThrowTypeError(
MessageTemplate::kCalledOnNonObject, 'Reflect.setPrototypeOf');
typeswitch (proto) {
case (proto: JSReceiver|Null): {
return object::ObjectSetPrototypeOfDontThrow(objectJSReceiver, proto);
}
case (JSAny): {
ThrowTypeError(MessageTemplate::kProtoObjectOrNull, proto);
}
}
}
extern transitioning builtin ToName(implicit context: Context)(JSAny): AnyName;
type OnNonExistent constexpr 'OnNonExistent';
const kReturnUndefined: constexpr OnNonExistent
generates 'OnNonExistent::kReturnUndefined';
extern macro SmiConstant(constexpr OnNonExistent): Smi;
extern transitioning builtin GetPropertyWithReceiver(implicit context: Context)(
JSAny, Name, JSAny, Smi): JSAny;
// ES6 section 26.1.6 Reflect.get
transitioning javascript builtin
ReflectGet(js-implicit context: NativeContext)(...arguments): JSAny {
const object: JSAny = arguments[0];
const objectJSReceiver = Cast<JSReceiver>(object)
otherwise ThrowTypeError(MessageTemplate::kCalledOnNonObject, 'Reflect.get');
const propertyKey: JSAny = arguments[1];
const name: AnyName = ToName(propertyKey);
const receiver: JSAny =
arguments.length > 2 ? arguments[2] : objectJSReceiver;
return GetPropertyWithReceiver(
objectJSReceiver, name, receiver, SmiConstant(kReturnUndefined));
}
// ES6 section 26.1.4 Reflect.deleteProperty
transitioning javascript builtin ReflectDeleteProperty(
js-implicit context: NativeContext)(object: JSAny, key: JSAny): JSAny {
const objectJSReceiver = Cast<JSReceiver>(object)
otherwise ThrowTypeError(
MessageTemplate::kCalledOnNonObject, 'Reflect.deleteProperty');
return DeleteProperty(objectJSReceiver, key, LanguageMode::kSloppy);
}
// ES section #sec-reflect.has
transitioning javascript builtin
ReflectHas(js-implicit context: NativeContext)(
object: JSAny, key: JSAny): JSAny {
const objectJSReceiver = Cast<JSReceiver>(object)
otherwise ThrowTypeError(MessageTemplate::kCalledOnNonObject, 'Reflect.has');
return HasProperty(objectJSReceiver, key);
}
} // namespace reflect
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