| Index: src/builtins/builtins-reflect.cc
|
| diff --git a/src/builtins/builtins-reflect.cc b/src/builtins/builtins-reflect.cc
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..b4d16c4a7b4c164eeb1f8af8f4a05beb5a62e91f
|
| --- /dev/null
|
| +++ b/src/builtins/builtins-reflect.cc
|
| @@ -0,0 +1,274 @@
|
| +// Copyright 2016 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.
|
| +
|
| +#include "src/builtins/builtins.h"
|
| +#include "src/builtins/builtins-utils.h"
|
| +
|
| +#include "src/property-descriptor.h"
|
| +
|
| +namespace v8 {
|
| +namespace internal {
|
| +
|
| +// -----------------------------------------------------------------------------
|
| +// ES6 section 26.1 The Reflect Object
|
| +
|
| +// ES6 section 26.1.3 Reflect.defineProperty
|
| +BUILTIN(ReflectDefineProperty) {
|
| + HandleScope scope(isolate);
|
| + DCHECK_EQ(4, args.length());
|
| + Handle<Object> target = args.at<Object>(1);
|
| + Handle<Object> key = args.at<Object>(2);
|
| + Handle<Object> attributes = args.at<Object>(3);
|
| +
|
| + if (!target->IsJSReceiver()) {
|
| + THROW_NEW_ERROR_RETURN_FAILURE(
|
| + isolate, NewTypeError(MessageTemplate::kCalledOnNonObject,
|
| + isolate->factory()->NewStringFromAsciiChecked(
|
| + "Reflect.defineProperty")));
|
| + }
|
| +
|
| + Handle<Name> name;
|
| + ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name,
|
| + Object::ToName(isolate, key));
|
| +
|
| + PropertyDescriptor desc;
|
| + if (!PropertyDescriptor::ToPropertyDescriptor(isolate, attributes, &desc)) {
|
| + return isolate->heap()->exception();
|
| + }
|
| +
|
| + Maybe<bool> result =
|
| + JSReceiver::DefineOwnProperty(isolate, Handle<JSReceiver>::cast(target),
|
| + name, &desc, Object::DONT_THROW);
|
| + MAYBE_RETURN(result, isolate->heap()->exception());
|
| + return *isolate->factory()->ToBoolean(result.FromJust());
|
| +}
|
| +
|
| +// ES6 section 26.1.4 Reflect.deleteProperty
|
| +BUILTIN(ReflectDeleteProperty) {
|
| + HandleScope scope(isolate);
|
| + DCHECK_EQ(3, args.length());
|
| + Handle<Object> target = args.at<Object>(1);
|
| + Handle<Object> key = args.at<Object>(2);
|
| +
|
| + if (!target->IsJSReceiver()) {
|
| + THROW_NEW_ERROR_RETURN_FAILURE(
|
| + isolate, NewTypeError(MessageTemplate::kCalledOnNonObject,
|
| + isolate->factory()->NewStringFromAsciiChecked(
|
| + "Reflect.deleteProperty")));
|
| + }
|
| +
|
| + Handle<Name> name;
|
| + ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name,
|
| + Object::ToName(isolate, key));
|
| +
|
| + Maybe<bool> result = JSReceiver::DeletePropertyOrElement(
|
| + Handle<JSReceiver>::cast(target), name, SLOPPY);
|
| + MAYBE_RETURN(result, isolate->heap()->exception());
|
| + return *isolate->factory()->ToBoolean(result.FromJust());
|
| +}
|
| +
|
| +// ES6 section 26.1.6 Reflect.get
|
| +BUILTIN(ReflectGet) {
|
| + HandleScope scope(isolate);
|
| + Handle<Object> target = args.atOrUndefined(isolate, 1);
|
| + Handle<Object> key = args.atOrUndefined(isolate, 2);
|
| + Handle<Object> receiver = args.length() > 3 ? args.at<Object>(3) : target;
|
| +
|
| + if (!target->IsJSReceiver()) {
|
| + THROW_NEW_ERROR_RETURN_FAILURE(
|
| + isolate, NewTypeError(MessageTemplate::kCalledOnNonObject,
|
| + isolate->factory()->NewStringFromAsciiChecked(
|
| + "Reflect.get")));
|
| + }
|
| +
|
| + Handle<Name> name;
|
| + ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name,
|
| + Object::ToName(isolate, key));
|
| +
|
| + RETURN_RESULT_OR_FAILURE(
|
| + isolate, Object::GetPropertyOrElement(receiver, name,
|
| + Handle<JSReceiver>::cast(target)));
|
| +}
|
| +
|
| +// ES6 section 26.1.7 Reflect.getOwnPropertyDescriptor
|
| +BUILTIN(ReflectGetOwnPropertyDescriptor) {
|
| + HandleScope scope(isolate);
|
| + DCHECK_EQ(3, args.length());
|
| + Handle<Object> target = args.at<Object>(1);
|
| + Handle<Object> key = args.at<Object>(2);
|
| +
|
| + if (!target->IsJSReceiver()) {
|
| + THROW_NEW_ERROR_RETURN_FAILURE(
|
| + isolate, NewTypeError(MessageTemplate::kCalledOnNonObject,
|
| + isolate->factory()->NewStringFromAsciiChecked(
|
| + "Reflect.getOwnPropertyDescriptor")));
|
| + }
|
| +
|
| + Handle<Name> name;
|
| + ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name,
|
| + Object::ToName(isolate, key));
|
| +
|
| + PropertyDescriptor desc;
|
| + Maybe<bool> found = JSReceiver::GetOwnPropertyDescriptor(
|
| + isolate, Handle<JSReceiver>::cast(target), name, &desc);
|
| + MAYBE_RETURN(found, isolate->heap()->exception());
|
| + if (!found.FromJust()) return isolate->heap()->undefined_value();
|
| + return *desc.ToObject(isolate);
|
| +}
|
| +
|
| +// ES6 section 26.1.8 Reflect.getPrototypeOf
|
| +BUILTIN(ReflectGetPrototypeOf) {
|
| + HandleScope scope(isolate);
|
| + DCHECK_EQ(2, args.length());
|
| + Handle<Object> target = args.at<Object>(1);
|
| +
|
| + if (!target->IsJSReceiver()) {
|
| + THROW_NEW_ERROR_RETURN_FAILURE(
|
| + isolate, NewTypeError(MessageTemplate::kCalledOnNonObject,
|
| + isolate->factory()->NewStringFromAsciiChecked(
|
| + "Reflect.getPrototypeOf")));
|
| + }
|
| + Handle<JSReceiver> receiver = Handle<JSReceiver>::cast(target);
|
| + RETURN_RESULT_OR_FAILURE(isolate,
|
| + JSReceiver::GetPrototype(isolate, receiver));
|
| +}
|
| +
|
| +// ES6 section 26.1.9 Reflect.has
|
| +BUILTIN(ReflectHas) {
|
| + HandleScope scope(isolate);
|
| + DCHECK_EQ(3, args.length());
|
| + Handle<Object> target = args.at<Object>(1);
|
| + Handle<Object> key = args.at<Object>(2);
|
| +
|
| + if (!target->IsJSReceiver()) {
|
| + THROW_NEW_ERROR_RETURN_FAILURE(
|
| + isolate, NewTypeError(MessageTemplate::kCalledOnNonObject,
|
| + isolate->factory()->NewStringFromAsciiChecked(
|
| + "Reflect.has")));
|
| + }
|
| +
|
| + Handle<Name> name;
|
| + ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name,
|
| + Object::ToName(isolate, key));
|
| +
|
| + Maybe<bool> result =
|
| + JSReceiver::HasProperty(Handle<JSReceiver>::cast(target), name);
|
| + return result.IsJust() ? *isolate->factory()->ToBoolean(result.FromJust())
|
| + : isolate->heap()->exception();
|
| +}
|
| +
|
| +// ES6 section 26.1.10 Reflect.isExtensible
|
| +BUILTIN(ReflectIsExtensible) {
|
| + HandleScope scope(isolate);
|
| + DCHECK_EQ(2, args.length());
|
| + Handle<Object> target = args.at<Object>(1);
|
| +
|
| + if (!target->IsJSReceiver()) {
|
| + THROW_NEW_ERROR_RETURN_FAILURE(
|
| + isolate, NewTypeError(MessageTemplate::kCalledOnNonObject,
|
| + isolate->factory()->NewStringFromAsciiChecked(
|
| + "Reflect.isExtensible")));
|
| + }
|
| +
|
| + Maybe<bool> result =
|
| + JSReceiver::IsExtensible(Handle<JSReceiver>::cast(target));
|
| + MAYBE_RETURN(result, isolate->heap()->exception());
|
| + return *isolate->factory()->ToBoolean(result.FromJust());
|
| +}
|
| +
|
| +// ES6 section 26.1.11 Reflect.ownKeys
|
| +BUILTIN(ReflectOwnKeys) {
|
| + HandleScope scope(isolate);
|
| + DCHECK_EQ(2, args.length());
|
| + Handle<Object> target = args.at<Object>(1);
|
| +
|
| + if (!target->IsJSReceiver()) {
|
| + THROW_NEW_ERROR_RETURN_FAILURE(
|
| + isolate, NewTypeError(MessageTemplate::kCalledOnNonObject,
|
| + isolate->factory()->NewStringFromAsciiChecked(
|
| + "Reflect.ownKeys")));
|
| + }
|
| +
|
| + Handle<FixedArray> keys;
|
| + ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
|
| + isolate, keys,
|
| + KeyAccumulator::GetKeys(Handle<JSReceiver>::cast(target),
|
| + KeyCollectionMode::kOwnOnly, ALL_PROPERTIES,
|
| + GetKeysConversion::kConvertToString));
|
| + return *isolate->factory()->NewJSArrayWithElements(keys);
|
| +}
|
| +
|
| +// ES6 section 26.1.12 Reflect.preventExtensions
|
| +BUILTIN(ReflectPreventExtensions) {
|
| + HandleScope scope(isolate);
|
| + DCHECK_EQ(2, args.length());
|
| + Handle<Object> target = args.at<Object>(1);
|
| +
|
| + if (!target->IsJSReceiver()) {
|
| + THROW_NEW_ERROR_RETURN_FAILURE(
|
| + isolate, NewTypeError(MessageTemplate::kCalledOnNonObject,
|
| + isolate->factory()->NewStringFromAsciiChecked(
|
| + "Reflect.preventExtensions")));
|
| + }
|
| +
|
| + Maybe<bool> result = JSReceiver::PreventExtensions(
|
| + Handle<JSReceiver>::cast(target), Object::DONT_THROW);
|
| + MAYBE_RETURN(result, isolate->heap()->exception());
|
| + return *isolate->factory()->ToBoolean(result.FromJust());
|
| +}
|
| +
|
| +// ES6 section 26.1.13 Reflect.set
|
| +BUILTIN(ReflectSet) {
|
| + HandleScope scope(isolate);
|
| + Handle<Object> target = args.atOrUndefined(isolate, 1);
|
| + Handle<Object> key = args.atOrUndefined(isolate, 2);
|
| + Handle<Object> value = args.atOrUndefined(isolate, 3);
|
| + Handle<Object> receiver = args.length() > 4 ? args.at<Object>(4) : target;
|
| +
|
| + if (!target->IsJSReceiver()) {
|
| + THROW_NEW_ERROR_RETURN_FAILURE(
|
| + isolate, NewTypeError(MessageTemplate::kCalledOnNonObject,
|
| + isolate->factory()->NewStringFromAsciiChecked(
|
| + "Reflect.set")));
|
| + }
|
| +
|
| + Handle<Name> name;
|
| + ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name,
|
| + Object::ToName(isolate, key));
|
| +
|
| + LookupIterator it = LookupIterator::PropertyOrElement(
|
| + isolate, receiver, name, Handle<JSReceiver>::cast(target));
|
| + Maybe<bool> result = Object::SetSuperProperty(
|
| + &it, value, SLOPPY, Object::MAY_BE_STORE_FROM_KEYED);
|
| + MAYBE_RETURN(result, isolate->heap()->exception());
|
| + return *isolate->factory()->ToBoolean(result.FromJust());
|
| +}
|
| +
|
| +// ES6 section 26.1.14 Reflect.setPrototypeOf
|
| +BUILTIN(ReflectSetPrototypeOf) {
|
| + HandleScope scope(isolate);
|
| + DCHECK_EQ(3, args.length());
|
| + Handle<Object> target = args.at<Object>(1);
|
| + Handle<Object> proto = args.at<Object>(2);
|
| +
|
| + if (!target->IsJSReceiver()) {
|
| + THROW_NEW_ERROR_RETURN_FAILURE(
|
| + isolate, NewTypeError(MessageTemplate::kCalledOnNonObject,
|
| + isolate->factory()->NewStringFromAsciiChecked(
|
| + "Reflect.setPrototypeOf")));
|
| + }
|
| +
|
| + if (!proto->IsJSReceiver() && !proto->IsNull(isolate)) {
|
| + THROW_NEW_ERROR_RETURN_FAILURE(
|
| + isolate, NewTypeError(MessageTemplate::kProtoObjectOrNull, proto));
|
| + }
|
| +
|
| + Maybe<bool> result = JSReceiver::SetPrototype(
|
| + Handle<JSReceiver>::cast(target), proto, true, Object::DONT_THROW);
|
| + MAYBE_RETURN(result, isolate->heap()->exception());
|
| + return *isolate->factory()->ToBoolean(result.FromJust());
|
| +}
|
| +
|
| +} // namespace internal
|
| +} // namespace v8
|
|
|