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/*
* Copyright (C) 2015 Apple, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "WeakSetConstructor.h"
#include "Error.h"
#include "IteratorOperations.h"
#include "JSCJSValueInlines.h"
#include "JSCellInlines.h"
#include "JSGlobalObject.h"
#include "JSWeakSet.h"
#include "StructureInlines.h"
#include "WeakSetPrototype.h"
namespace JSC {
const ClassInfo WeakSetConstructor::s_info = { "Function", &Base::s_info, 0, CREATE_METHOD_TABLE(WeakSetConstructor) };
void WeakSetConstructor::finishCreation(VM& vm, WeakSetPrototype* prototype)
{
Base::finishCreation(vm, prototype->classInfo()->className);
putDirectWithoutTransition(vm, vm.propertyNames->prototype, prototype, DontEnum | DontDelete | ReadOnly);
putDirectWithoutTransition(vm, vm.propertyNames->length, jsNumber(0), ReadOnly | DontEnum | DontDelete);
}
static EncodedJSValue JSC_HOST_CALL callWeakSet(ExecState* exec)
{
return JSValue::encode(throwConstructorCannotBeCalledAsFunctionTypeError(exec, "WeakSet"));
}
static EncodedJSValue JSC_HOST_CALL constructWeakSet(ExecState* exec)
{
JSGlobalObject* globalObject = asInternalFunction(exec->callee())->globalObject();
Structure* weakSetStructure = InternalFunction::createSubclassStructure(exec, exec->newTarget(), globalObject->weakSetStructure());
JSWeakSet* weakSet = JSWeakSet::create(exec, weakSetStructure);
JSValue iterable = exec->argument(0);
if (iterable.isUndefinedOrNull())
return JSValue::encode(weakSet);
JSValue adderFunction = weakSet->JSObject::get(exec, exec->propertyNames().add);
if (exec->hadException())
return JSValue::encode(jsUndefined());
CallData adderFunctionCallData;
CallType adderFunctionCallType = getCallData(adderFunction, adderFunctionCallData);
if (adderFunctionCallType == CallTypeNone)
return JSValue::encode(throwTypeError(exec));
JSValue iteratorFunction = iterable.get(exec, exec->propertyNames().iteratorSymbol);
if (exec->hadException())
return JSValue::encode(jsUndefined());
CallData iteratorFunctionCallData;
CallType iteratorFunctionCallType = getCallData(iteratorFunction, iteratorFunctionCallData);
if (iteratorFunctionCallType == CallTypeNone)
return JSValue::encode(throwTypeError(exec));
ArgList iteratorFunctionArguments;
JSValue iterator = call(exec, iteratorFunction, iteratorFunctionCallType, iteratorFunctionCallData, iterable, iteratorFunctionArguments);
if (exec->hadException())
return JSValue::encode(jsUndefined());
if (!iterator.isObject())
return JSValue::encode(throwTypeError(exec));
while (true) {
JSValue next = iteratorStep(exec, iterator);
if (exec->hadException())
return JSValue::encode(jsUndefined());
if (next.isFalse())
return JSValue::encode(weakSet);
JSValue nextValue = iteratorValue(exec, next);
if (exec->hadException())
return JSValue::encode(jsUndefined());
MarkedArgumentBuffer arguments;
arguments.append(nextValue);
call(exec, adderFunction, adderFunctionCallType, adderFunctionCallData, weakSet, arguments);
if (exec->hadException()) {
iteratorClose(exec, iterator);
return JSValue::encode(jsUndefined());
}
}
RELEASE_ASSERT_NOT_REACHED();
return JSValue::encode(weakSet);
}
ConstructType WeakSetConstructor::getConstructData(JSCell*, ConstructData& constructData)
{
constructData.native.function = constructWeakSet;
return ConstructTypeHost;
}
CallType WeakSetConstructor::getCallData(JSCell*, CallData& callData)
{
callData.native.function = callWeakSet;
return CallTypeHost;
}
}
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