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/*
* Copyright (C) 2013-2019 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. AND ITS CONTRIBUTORS ``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 ITS 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.
*/
#pragma once
#include "JSCast.h"
#include "JSPromise.h"
#include "Structure.h"
namespace JSC {
class Exception;
class JSPromiseConstructor;
class JSFunction;
class JSPromiseDeferred : public JSCell {
public:
typedef JSCell Base;
static constexpr unsigned StructureFlags = Base::StructureFlags | StructureIsImmortal;
struct DeferredData {
WTF_FORBID_HEAP_ALLOCATION;
public:
JSPromise* promise { nullptr };
JSFunction* resolve { nullptr };
JSFunction* reject { nullptr };
};
static DeferredData createDeferredData(ExecState*, JSGlobalObject*, JSPromiseConstructor*);
JS_EXPORT_PRIVATE static JSPromiseDeferred* tryCreate(ExecState*, JSGlobalObject*);
JS_EXPORT_PRIVATE static JSPromiseDeferred* create(VM&, JSPromise*, JSFunction* resolve, JSFunction* reject);
static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
{
return Structure::create(vm, globalObject, prototype, TypeInfo(CellType, StructureFlags), info());
}
DECLARE_EXPORT_INFO;
JSPromise* promise() const { return m_promise.get(); }
JSFunction* resolve() const { return m_resolve.get(); }
JSFunction* reject() const { return m_reject.get(); }
JS_EXPORT_PRIVATE void resolve(ExecState*, JSValue);
JS_EXPORT_PRIVATE void reject(ExecState*, JSValue);
JS_EXPORT_PRIVATE void reject(ExecState*, Exception*);
#ifndef NDEBUG
void promiseAsyncPending() { m_promiseIsAsyncPending = true; }
#endif
protected:
JSPromiseDeferred(VM&, Structure*);
void finishCreation(VM&, JSPromise*, JSFunction* resolve, JSFunction* reject);
static void visitChildren(JSCell*, SlotVisitor&);
private:
JSPromiseDeferred(VM&);
#ifndef NDEBUG
bool m_promiseIsAsyncPending { false };
#endif
WriteBarrier<JSPromise> m_promise;
WriteBarrier<JSFunction> m_resolve;
WriteBarrier<JSFunction> m_reject;
};
} // namespace JSC