mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-26 21:50:53 +00:00
106 lines
3.8 KiB
C++
106 lines
3.8 KiB
C++
/*
|
|
* 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 JSPromise* createWithInitialValues(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);
|
|
|
|
static std::array<JSValue, numberOfInternalFields> initialValues()
|
|
{
|
|
return { {
|
|
jsNumber(static_cast<unsigned>(Status::Pending)),
|
|
jsUndefined(),
|
|
} };
|
|
}
|
|
|
|
const WriteBarrier<Unknown>& internalField(Field field) const { return Base::internalField(static_cast<uint32_t>(field)); }
|
|
WriteBarrier<Unknown>& internalField(Field field) { return Base::internalField(static_cast<uint32_t>(field)); }
|
|
|
|
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
|