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/*
* Copyright (C) 2013 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.
*/
#ifndef JSPromise_h
#define JSPromise_h
#if ENABLE(PROMISES)
#include "JSDestructibleObject.h"
namespace JSC {
class JSPromiseReaction;
class JSPromiseConstructor;
class JSPromise : public JSDestructibleObject {
public:
typedef JSDestructibleObject Base;
static JSPromise* create(VM&, JSGlobalObject*, JSPromiseConstructor*);
static Structure* createStructure(VM&, JSGlobalObject*, JSValue);
DECLARE_INFO;
enum class Status {
Unresolved,
HasResolution,
HasRejection
};
Status status() const
{
return m_status;
}
JSValue result() const
{
ASSERT(m_status != Status::Unresolved);
return m_result.get();
}
JSPromiseConstructor* constructor() const
{
return m_constructor.get();
}
void reject(VM&, JSValue);
void resolve(VM&, JSValue);
void appendResolveReaction(VM&, JSPromiseReaction*);
void appendRejectReaction(VM&, JSPromiseReaction*);
private:
JSPromise(VM&, Structure*);
void finishCreation(VM&, JSPromiseConstructor*);
static void destroy(JSCell*);
static void visitChildren(JSCell*, SlotVisitor&);
Status m_status;
WriteBarrier<Unknown> m_result;
WriteBarrier<JSPromiseConstructor> m_constructor;
Vector<WriteBarrier<JSPromiseReaction>> m_resolveReactions;
Vector<WriteBarrier<JSPromiseReaction>> m_rejectReactions;
};
} // namespace JSC
#endif // ENABLE(PROMISES)
#endif // JSPromise_h
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