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/*
* Copyright (C) 2006, 2007, 2008 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 COMPUTER, 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 COMPUTER, 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 "JSCallbackConstructor.h"
#include "APIShims.h"
#include "APICast.h"
#include "Error.h"
#include "JSGlobalObject.h"
#include "JSLock.h"
#include "ObjectPrototype.h"
#include "Operations.h"
#include <wtf/Vector.h>
namespace JSC {
const ClassInfo JSCallbackConstructor::s_info = { "CallbackConstructor", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(JSCallbackConstructor) };
JSCallbackConstructor::JSCallbackConstructor(JSGlobalObject* globalObject, Structure* structure, JSClassRef jsClass, JSObjectCallAsConstructorCallback callback)
: JSDestructibleObject(globalObject->vm(), structure)
, m_class(jsClass)
, m_callback(callback)
{
}
void JSCallbackConstructor::finishCreation(JSGlobalObject* globalObject, JSClassRef jsClass)
{
Base::finishCreation(globalObject->vm());
ASSERT(inherits(&s_info));
if (m_class)
JSClassRetain(jsClass);
}
JSCallbackConstructor::~JSCallbackConstructor()
{
if (m_class)
JSClassRelease(m_class);
}
void JSCallbackConstructor::destroy(JSCell* cell)
{
static_cast<JSCallbackConstructor*>(cell)->JSCallbackConstructor::~JSCallbackConstructor();
}
static EncodedJSValue JSC_HOST_CALL constructJSCallback(ExecState* exec)
{
JSObject* constructor = exec->callee();
JSContextRef ctx = toRef(exec);
JSObjectRef constructorRef = toRef(constructor);
JSObjectCallAsConstructorCallback callback = jsCast<JSCallbackConstructor*>(constructor)->callback();
if (callback) {
size_t argumentCount = exec->argumentCount();
Vector<JSValueRef, 16> arguments;
arguments.reserveInitialCapacity(argumentCount);
for (size_t i = 0; i < argumentCount; ++i)
arguments.uncheckedAppend(toRef(exec, exec->argument(i)));
JSValueRef exception = 0;
JSObjectRef result;
{
APICallbackShim callbackShim(exec);
result = callback(ctx, constructorRef, argumentCount, arguments.data(), &exception);
}
if (exception)
throwError(exec, toJS(exec, exception));
// result must be a valid JSValue.
if (!result)
return throwVMTypeError(exec);
return JSValue::encode(toJS(result));
}
return JSValue::encode(toJS(JSObjectMake(ctx, jsCast<JSCallbackConstructor*>(constructor)->classRef(), 0)));
}
ConstructType JSCallbackConstructor::getConstructData(JSCell*, ConstructData& constructData)
{
constructData.native.function = constructJSCallback;
return ConstructTypeHost;
}
} // namespace JSC
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