mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-23 04:09:40 +00:00
108 lines
4.3 KiB
C++
108 lines
4.3 KiB
C++
/*
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* Copyright (C) 2013-2017 Apple, Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "WeakMapConstructor.h"
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#include "IteratorOperations.h"
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#include "JSCInlines.h"
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#include "JSWeakMap.h"
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#include "WeakMapPrototype.h"
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namespace JSC {
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const ClassInfo WeakMapConstructor::s_info = { "Function", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(WeakMapConstructor) };
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void WeakMapConstructor::finishCreation(VM& vm, WeakMapPrototype* prototype)
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{
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Base::finishCreation(vm, 0, "WeakMap"_s, PropertyAdditionMode::WithoutStructureTransition);
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putDirectWithoutTransition(vm, vm.propertyNames->prototype, prototype, PropertyAttribute::DontEnum | PropertyAttribute::DontDelete | PropertyAttribute::ReadOnly);
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}
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static JSC_DECLARE_HOST_FUNCTION(callWeakMap);
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static JSC_DECLARE_HOST_FUNCTION(constructWeakMap);
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WeakMapConstructor::WeakMapConstructor(VM& vm, Structure* structure)
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: Base(vm, structure, callWeakMap, constructWeakMap)
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{
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}
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JSC_DEFINE_HOST_FUNCTION(callWeakMap, (JSGlobalObject* globalObject, CallFrame*))
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{
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VM& vm = globalObject->vm();
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auto scope = DECLARE_THROW_SCOPE(vm);
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return JSValue::encode(throwConstructorCannotBeCalledAsFunctionTypeError(globalObject, scope, "WeakMap"));
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}
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JSC_DEFINE_HOST_FUNCTION(constructWeakMap, (JSGlobalObject* globalObject, CallFrame* callFrame))
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{
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VM& vm = globalObject->vm();
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auto scope = DECLARE_THROW_SCOPE(vm);
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JSObject* newTarget = asObject(callFrame->newTarget());
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Structure* weakMapStructure = newTarget == callFrame->jsCallee()
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? globalObject->weakMapStructure()
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: InternalFunction::createSubclassStructure(globalObject, newTarget, getFunctionRealm(vm, newTarget)->weakMapStructure());
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RETURN_IF_EXCEPTION(scope, { });
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JSWeakMap* weakMap = JSWeakMap::create(vm, weakMapStructure);
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JSValue iterable = callFrame->argument(0);
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if (iterable.isUndefinedOrNull())
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return JSValue::encode(weakMap);
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JSValue adderFunction = weakMap->JSObject::get(globalObject, vm.propertyNames->set);
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RETURN_IF_EXCEPTION(scope, encodedJSValue());
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auto adderFunctionCallData = getCallData(vm, adderFunction);
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if (adderFunctionCallData.type == CallData::Type::None)
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return JSValue::encode(throwTypeError(globalObject, scope));
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scope.release();
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forEachInIterable(globalObject, iterable, [&](VM& vm, JSGlobalObject* globalObject, JSValue nextItem) {
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auto scope = DECLARE_THROW_SCOPE(vm);
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if (!nextItem.isObject()) {
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throwTypeError(globalObject, scope);
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return;
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}
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JSValue key = nextItem.get(globalObject, static_cast<unsigned>(0));
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RETURN_IF_EXCEPTION(scope, void());
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JSValue value = nextItem.get(globalObject, static_cast<unsigned>(1));
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RETURN_IF_EXCEPTION(scope, void());
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MarkedArgumentBuffer arguments;
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arguments.append(key);
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arguments.append(value);
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ASSERT(!arguments.hasOverflowed());
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scope.release();
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call(globalObject, adderFunction, adderFunctionCallData, weakMap, arguments);
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});
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return JSValue::encode(weakMap);
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}
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}
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