1/*
2 * Copyright (C) 2015 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "JSPromise.h"
29
30namespace JSC {
31
32class JSFunction;
33
34// JSInternalPromise is completely separated instance from the JSPromise.
35// Since its prototype and constructor are different from the exposed Promises' ones,
36// all the user modification onto the exposed Promise does not have effect on JSInternalPromise.
37//
38// e.g.
39// Replacing Promise.prototype.then with the user-customized one does not effect on JSInternalPromise.
40//
41// CAUTION: Must not leak the JSInternalPromise to the user space to keep its integrity.
42class JSInternalPromise final : public JSPromise {
43public:
44 typedef JSPromise Base;
45
46 static JSInternalPromise* create(VM&, Structure*);
47 static Structure* createStructure(VM&, JSGlobalObject*, JSValue);
48
49 DECLARE_EXPORT_INFO;
50
51 JS_EXPORT_PRIVATE JSInternalPromise* then(ExecState*, JSFunction* = nullptr, JSFunction* = nullptr);
52
53private:
54 JSInternalPromise(VM&, Structure*);
55};
56
57} // namespace JSC
58