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// 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-utils-inl.h"
#include "src/builtins/builtins.h"
#include "src/logging/counters.h"
#include "src/objects/keys.h"
#include "src/objects/lookup.h"
#include "src/objects/objects-inl.h"
#include "src/objects/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(1);
Handle<Object> key = args.at(2);
Handle<Object> attributes = args.at(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 ReadOnlyRoots(isolate).exception();
}
Maybe<bool> result = JSReceiver::DefineOwnProperty(
isolate, Handle<JSReceiver>::cast(target), name, &desc, Just(kDontThrow));
MAYBE_RETURN(result, ReadOnlyRoots(isolate).exception());
return *isolate->factory()->ToBoolean(result.FromJust());
}
// ES6 section 26.1.7 Reflect.getOwnPropertyDescriptor
BUILTIN(ReflectGetOwnPropertyDescriptor) {
HandleScope scope(isolate);
DCHECK_EQ(3, args.length());
Handle<Object> target = args.at(1);
Handle<Object> key = args.at(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, ReadOnlyRoots(isolate).exception());
if (!found.FromJust()) return ReadOnlyRoots(isolate).undefined_value();
return *desc.ToObject(isolate);
}
// ES6 section 26.1.11 Reflect.ownKeys
BUILTIN(ReflectOwnKeys) {
HandleScope scope(isolate);
DCHECK_EQ(2, args.length());
Handle<Object> target = args.at(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 26.1.13 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(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::Key lookup_key(isolate, name);
LookupIterator it(isolate, receiver, lookup_key,
Handle<JSReceiver>::cast(target));
Maybe<bool> result = Object::SetSuperProperty(
&it, value, StoreOrigin::kMaybeKeyed, Just(ShouldThrow::kDontThrow));
MAYBE_RETURN(result, ReadOnlyRoots(isolate).exception());
return *isolate->factory()->ToBoolean(result.FromJust());
}
} // namespace internal
} // namespace v8
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