mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2025-04-15 13:32:38 +00:00
128 lines
5.1 KiB
C++
128 lines
5.1 KiB
C++
/*
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* Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
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* Copyright (C) 2008, 2016-2017 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#pragma once
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#include "InternalFunction.h"
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#include "JSGlobalObject.h"
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#include "ObjectPrototype.h"
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namespace JSC {
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EncodedJSValue JSC_HOST_CALL objectConstructorGetOwnPropertyDescriptor(ExecState*);
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EncodedJSValue JSC_HOST_CALL objectConstructorGetOwnPropertyDescriptors(ExecState*);
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EncodedJSValue JSC_HOST_CALL objectConstructorGetOwnPropertySymbols(ExecState*);
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EncodedJSValue JSC_HOST_CALL objectConstructorGetOwnPropertyNames(ExecState*);
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EncodedJSValue JSC_HOST_CALL objectConstructorKeys(ExecState*);
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class ObjectPrototype;
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class ObjectConstructor final : public InternalFunction {
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public:
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typedef InternalFunction Base;
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static const unsigned StructureFlags = Base::StructureFlags | HasStaticPropertyTable;
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static ObjectConstructor* create(VM& vm, JSGlobalObject* globalObject, Structure* structure, ObjectPrototype* objectPrototype)
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{
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ObjectConstructor* constructor = new (NotNull, allocateCell<ObjectConstructor>(vm.heap)) ObjectConstructor(vm, structure);
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constructor->finishCreation(vm, globalObject, objectPrototype);
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return constructor;
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}
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DECLARE_INFO;
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static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
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{
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return Structure::create(vm, globalObject, prototype, TypeInfo(InternalFunctionType, StructureFlags), info());
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}
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protected:
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void finishCreation(VM&, JSGlobalObject*, ObjectPrototype*);
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private:
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ObjectConstructor(VM&, Structure*);
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};
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inline JSFinalObject* constructEmptyObject(ExecState* exec, Structure* structure)
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{
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return JSFinalObject::create(exec, structure);
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}
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inline JSFinalObject* constructEmptyObject(ExecState* exec, JSObject* prototype, unsigned inlineCapacity)
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{
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JSGlobalObject* globalObject = exec->lexicalGlobalObject();
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StructureCache& structureCache = globalObject->vm().structureCache;
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Structure* structure = structureCache.emptyObjectStructureForPrototype(globalObject, prototype, inlineCapacity);
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return constructEmptyObject(exec, structure);
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}
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inline JSFinalObject* constructEmptyObject(ExecState* exec, JSObject* prototype)
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{
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return constructEmptyObject(exec, prototype, JSFinalObject::defaultInlineCapacity());
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}
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inline JSFinalObject* constructEmptyObject(ExecState* exec)
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{
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return constructEmptyObject(exec, exec->lexicalGlobalObject()->objectStructureForObjectConstructor());
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}
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inline JSObject* constructObject(ExecState* exec, JSGlobalObject* globalObject, JSValue arg)
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{
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if (arg.isUndefinedOrNull())
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return constructEmptyObject(exec, globalObject->objectPrototype());
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return arg.toObject(exec, globalObject);
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}
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// Section 6.2.4.4 of the ES6 specification.
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// https://tc39.github.io/ecma262/#sec-frompropertydescriptor
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inline JSObject* constructObjectFromPropertyDescriptor(ExecState* exec, const PropertyDescriptor& descriptor)
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{
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VM& vm = exec->vm();
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auto scope = DECLARE_THROW_SCOPE(vm);
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JSObject* description = constructEmptyObject(exec);
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RETURN_IF_EXCEPTION(scope, nullptr);
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if (!descriptor.isAccessorDescriptor()) {
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description->putDirect(vm, vm.propertyNames->value, descriptor.value() ? descriptor.value() : jsUndefined(), 0);
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description->putDirect(vm, vm.propertyNames->writable, jsBoolean(descriptor.writable()), 0);
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} else {
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ASSERT(descriptor.getter() || descriptor.setter());
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if (descriptor.getter())
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description->putDirect(vm, vm.propertyNames->get, descriptor.getter(), 0);
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if (descriptor.setter())
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description->putDirect(vm, vm.propertyNames->set, descriptor.setter(), 0);
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}
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description->putDirect(vm, vm.propertyNames->enumerable, jsBoolean(descriptor.enumerable()), 0);
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description->putDirect(vm, vm.propertyNames->configurable, jsBoolean(descriptor.configurable()), 0);
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return description;
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}
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JS_EXPORT_PRIVATE JSObject* objectConstructorFreeze(ExecState*, JSObject*);
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JS_EXPORT_PRIVATE JSObject* objectConstructorSeal(ExecState*, JSObject*);
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JSValue objectConstructorGetOwnPropertyDescriptor(ExecState*, JSObject*, const Identifier&);
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JSValue objectConstructorGetOwnPropertyDescriptors(ExecState*, JSObject*);
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JSArray* ownPropertyKeys(ExecState*, JSObject*, PropertyNameMode, DontEnumPropertiesMode);
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bool toPropertyDescriptor(ExecState*, JSValue, PropertyDescriptor&);
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} // namespace JSC
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