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https://github.com/Samsung/escargot.git
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488de00180
* replace defineOwnProperty with directDefineOwnProperty method * directly insert new properties for builtin objects Signed-off-by: HyukWoo Park <hyukwoo.park@samsung.com>
68 lines
3.3 KiB
C++
68 lines
3.3 KiB
C++
/*
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* Copyright (c) 2019-present Samsung Electronics Co., Ltd
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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 2.1 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
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* USA
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*/
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#include "Escargot.h"
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#include "runtime/GlobalObject.h"
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#include "runtime/Context.h"
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#include "runtime/VMInstance.h"
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#include "runtime/GeneratorObject.h"
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#include "runtime/NativeFunctionObject.h"
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#include "runtime/ScriptAsyncFunctionObject.h"
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namespace Escargot {
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static Value builtinAsyncFunction(ExecutionState& state, Value thisValue, size_t argc, Value* argv, Optional<Object*> newTarget)
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{
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size_t argumentVectorCount = argc > 1 ? argc - 1 : 0;
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Value sourceValue = argc >= 1 ? argv[argc - 1] : Value(String::emptyString);
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auto functionSource = FunctionObject::createDynamicFunctionScript(state, state.context()->staticStrings().anonymous, argumentVectorCount, argv, sourceValue, false, false, true, false);
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// Let proto be ? GetPrototypeFromConstructor(newTarget, fallbackProto).
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if (!newTarget.hasValue()) {
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newTarget = state.resolveCallee();
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}
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Object* proto = Object::getPrototypeFromConstructor(state, newTarget.value(), [](ExecutionState& state, Context* constructorRealm) -> Object* {
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return constructorRealm->globalObject()->asyncFunctionPrototype();
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});
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return new ScriptAsyncFunctionObject(state, proto, functionSource.codeBlock, functionSource.outerEnvironment);
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}
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void GlobalObject::initializeAsyncFunction(ExecutionState& state)
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{
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// do nothing
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}
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void GlobalObject::installAsyncFunction(ExecutionState& state)
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{
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m_asyncFunction = new NativeFunctionObject(state, NativeFunctionInfo(state.context()->staticStrings().AsyncFunction, builtinAsyncFunction, 1), NativeFunctionObject::__ForBuiltinConstructor__);
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m_asyncFunction->setGlobalIntrinsicObject(state);
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m_asyncFunction->setPrototype(state, m_function);
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m_asyncFunctionPrototype = new PrototypeObject(state, m_functionPrototype);
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m_asyncFunctionPrototype->setGlobalIntrinsicObject(state, true);
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m_asyncFunction->setFunctionPrototype(state, m_asyncFunctionPrototype);
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m_asyncFunctionPrototype->directDefineOwnProperty(state, ObjectPropertyName(state.context()->staticStrings().constructor),
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ObjectPropertyDescriptor(m_asyncFunction, ObjectPropertyDescriptor::ConfigurablePresent));
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m_asyncFunctionPrototype->directDefineOwnProperty(state, ObjectPropertyName(state.context()->vmInstance()->globalSymbols().toStringTag),
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ObjectPropertyDescriptor(state.context()->staticStrings().AsyncFunction.string(), ObjectPropertyDescriptor::ConfigurablePresent));
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}
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} // namespace Escargot
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