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https://github.com/Samsung/escargot.git
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ed616194d8
* each builtin constructor of intrinsic object gets prototype from GetPrototypeFromConstructor * Reflect constructor is fixed to pass newTarget to Construct operation Signed-off-by: HyukWoo Park <hyukwoo.park@samsung.com>
99 lines
6.9 KiB
C++
99 lines
6.9 KiB
C++
/*
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* Copyright (c) 2020-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 "GlobalObject.h"
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#include "Context.h"
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#include "VMInstance.h"
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#include "runtime/ScriptAsyncGeneratorFunctionObject.h"
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#include "runtime/AsyncGeneratorObject.h"
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namespace Escargot {
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static Value builtinAsyncGeneratorFunction(ExecutionState& state, Value thisValue, size_t argc, Value* argv, Value 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::createFunctionSourceFromScriptSource(state, state.context()->staticStrings().anonymous, argumentVectorCount, argv, sourceValue, false, true, true, false);
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// Let proto be ? GetPrototypeFromConstructor(newTarget, fallbackProto).
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if (newTarget.isUndefined()) {
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newTarget = state.resolveCallee();
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}
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Object* proto = Object::getPrototypeFromConstructor(state, newTarget.asObject(), state.context()->globalObject()->asyncGenerator());
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ScriptAsyncGeneratorFunctionObject* result = new ScriptAsyncGeneratorFunctionObject(state, functionSource.codeBlock, functionSource.outerEnvironment);
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result->setPrototype(state, proto);
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return result;
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}
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static Value builtinAsyncGeneratorNext(ExecutionState& state, Value thisValue, size_t argc, Value* argv, Value newTarget)
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{
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return AsyncGeneratorObject::asyncGeneratorEnqueue(state, thisValue, AsyncGeneratorObject::AsyncGeneratorEnqueueType::Next, argv[0]);
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}
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static Value builtinAsyncGeneratorReturn(ExecutionState& state, Value thisValue, size_t argc, Value* argv, Value newTarget)
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{
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return AsyncGeneratorObject::asyncGeneratorEnqueue(state, thisValue, AsyncGeneratorObject::AsyncGeneratorEnqueueType::Return, argv[0]);
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}
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static Value builtinAsyncGeneratorThrow(ExecutionState& state, Value thisValue, size_t argc, Value* argv, Value newTarget)
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{
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return AsyncGeneratorObject::asyncGeneratorEnqueue(state, thisValue, AsyncGeneratorObject::AsyncGeneratorEnqueueType::Throw, argv[0]);
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}
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void GlobalObject::installAsyncGeneratorFunction(ExecutionState& state)
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{
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// https://www.ecma-international.org/ecma-262/10.0/index.html#sec-asyncgeneratorfunction
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m_asyncGeneratorFunction = new NativeFunctionObject(state, NativeFunctionInfo(state.context()->staticStrings().AsyncGeneratorFunction, builtinAsyncGeneratorFunction, 1), NativeFunctionObject::__ForBuiltinConstructor__);
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m_asyncGeneratorFunction->markThisObjectDontNeedStructureTransitionTable();
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m_asyncGeneratorFunction->setPrototype(state, m_function);
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// https://www.ecma-international.org/ecma-262/10.0/index.html#sec-properties-of-asyncgeneratorfunction-prototype
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m_asyncGenerator = new Object(state);
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m_asyncGenerator->setPrototype(state, m_functionPrototype);
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m_asyncGeneratorFunction->setFunctionPrototype(state, m_asyncGenerator);
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m_asyncGenerator->defineOwnProperty(state, ObjectPropertyName(state.context()->staticStrings().constructor),
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ObjectPropertyDescriptor(m_asyncGeneratorFunction, ObjectPropertyDescriptor::ConfigurablePresent));
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m_asyncGenerator->defineOwnProperty(state, ObjectPropertyName(state.context()->vmInstance()->globalSymbols().toStringTag),
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ObjectPropertyDescriptor(state.context()->staticStrings().AsyncGeneratorFunction.string(), ObjectPropertyDescriptor::ConfigurablePresent));
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// https://www.ecma-international.org/ecma-262/10.0/index.html#sec-properties-of-asyncgenerator-prototype
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m_asyncGeneratorPrototype = new Object(state);
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m_asyncGeneratorPrototype->markThisObjectDontNeedStructureTransitionTable();
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m_asyncGeneratorPrototype->setPrototype(state, m_asyncIteratorPrototype);
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m_asyncGenerator->defineOwnProperty(state, ObjectPropertyName(state.context()->staticStrings().prototype), ObjectPropertyDescriptor(m_asyncGeneratorPrototype, ObjectPropertyDescriptor::ConfigurablePresent));
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m_asyncGeneratorPrototype->defineOwnProperty(state, ObjectPropertyName(state.context()->staticStrings().constructor), ObjectPropertyDescriptor(m_asyncGenerator, ObjectPropertyDescriptor::ConfigurablePresent));
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m_asyncGeneratorPrototype->defineOwnPropertyThrowsException(state, ObjectPropertyName(state.context()->staticStrings().next),
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ObjectPropertyDescriptor(new NativeFunctionObject(state, NativeFunctionInfo(state.context()->staticStrings().next, builtinAsyncGeneratorNext, 1, NativeFunctionInfo::Strict)), (ObjectPropertyDescriptor::PresentAttribute)(ObjectPropertyDescriptor::WritablePresent | ObjectPropertyDescriptor::ConfigurablePresent)));
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m_asyncGeneratorPrototype->defineOwnPropertyThrowsException(state, ObjectPropertyName(state.context()->staticStrings().stringReturn),
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ObjectPropertyDescriptor(new NativeFunctionObject(state, NativeFunctionInfo(state.context()->staticStrings().stringReturn, builtinAsyncGeneratorReturn, 1, NativeFunctionInfo::Strict)), (ObjectPropertyDescriptor::PresentAttribute)(ObjectPropertyDescriptor::WritablePresent | ObjectPropertyDescriptor::ConfigurablePresent)));
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m_asyncGeneratorPrototype->defineOwnPropertyThrowsException(state, ObjectPropertyName(state.context()->staticStrings().stringThrow),
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ObjectPropertyDescriptor(new NativeFunctionObject(state, NativeFunctionInfo(state.context()->staticStrings().stringThrow, builtinAsyncGeneratorThrow, 1, NativeFunctionInfo::Strict)), (ObjectPropertyDescriptor::PresentAttribute)(ObjectPropertyDescriptor::WritablePresent | ObjectPropertyDescriptor::ConfigurablePresent)));
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m_asyncGeneratorPrototype->defineOwnPropertyThrowsException(state, ObjectPropertyName(state, Value(state.context()->vmInstance()->globalSymbols().toStringTag)),
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ObjectPropertyDescriptor(Value(state.context()->staticStrings().AsyncGenerator.string()), (ObjectPropertyDescriptor::PresentAttribute)(ObjectPropertyDescriptor::PresentAttribute)(ObjectPropertyDescriptor::NonWritablePresent | ObjectPropertyDescriptor::NonEnumerablePresent | ObjectPropertyDescriptor::ConfigurablePresent)));
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}
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} // namespace Escargot
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