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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.
*/
#pragma once
#include "JSInternalFieldObjectImpl.h"
namespace JSC {
class JSPromiseConstructor;
class JSPromise : public JSInternalFieldObjectImpl<2> {
public:
using Base = JSInternalFieldObjectImpl<2>;
template<typename CellType, SubspaceAccess mode>
static IsoSubspace* subspaceFor(VM& vm)
{
return &vm.promiseSpace;
}
JS_EXPORT_PRIVATE static JSPromise* create(VM&, Structure*);
static Structure* createStructure(VM&, JSGlobalObject*, JSValue);
DECLARE_EXPORT_INFO;
enum class Status : unsigned {
Pending = 0, // Making this as 0, so that, we can change the status from Pending to others without masking.
Fulfilled = 1,
Rejected = 2,
};
static constexpr uint32_t isHandledFlag = 4;
static constexpr uint32_t isFirstResolvingFunctionCalledFlag = 8;
static constexpr uint32_t stateMask = 0b11;
enum class Field : unsigned {
Flags = 0,
ReactionsOrResult = 1,
};
static_assert(numberOfInternalFields == 2);
JS_EXPORT_PRIVATE Status status(VM&) const;
JS_EXPORT_PRIVATE JSValue result(VM&) const;
JS_EXPORT_PRIVATE bool isHandled(VM&) const;
JS_EXPORT_PRIVATE static JSPromise* resolvedPromise(JSGlobalObject*, JSValue);
JS_EXPORT_PRIVATE void resolve(JSGlobalObject*, JSValue);
JS_EXPORT_PRIVATE void reject(JSGlobalObject*, JSValue);
JS_EXPORT_PRIVATE void rejectAsHandled(JSGlobalObject*, JSValue);
JS_EXPORT_PRIVATE void reject(JSGlobalObject*, Exception*);
JS_EXPORT_PRIVATE void rejectAsHandled(JSGlobalObject*, Exception*);
struct DeferredData {
WTF_FORBID_HEAP_ALLOCATION;
public:
JSPromise* promise { nullptr };
JSFunction* resolve { nullptr };
JSFunction* reject { nullptr };
};
static DeferredData createDeferredData(JSGlobalObject*, JSPromiseConstructor*);
static void visitChildren(JSCell*, SlotVisitor&);
protected:
JSPromise(VM&, Structure*);
void finishCreation(VM&);
uint32_t flags() const;
};
} // namespace JSC