1/*
2 * Copyright (C) 2015-2018 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. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "JSFunction.h"
29
30namespace JSC {
31
32class JSGlobalObject;
33class NativeStdFunctionCell;
34
35using NativeStdFunction = WTF::Function<EncodedJSValue(JSGlobalObject*, CallFrame*)>;
36
37class JSNativeStdFunction final : public JSFunction {
38public:
39 typedef JSFunction Base;
40
41 static constexpr unsigned StructureFlags = Base::StructureFlags;
42
43 template<typename CellType, SubspaceAccess mode>
44 static IsoSubspace* subspaceFor(VM& vm)
45 {
46 return vm.nativeStdFunctionSpace<mode>();
47 }
48
49 DECLARE_EXPORT_INFO;
50
51 JS_EXPORT_PRIVATE static JSNativeStdFunction* create(VM&, JSGlobalObject*, int length, const String& name, NativeStdFunction&&, Intrinsic = NoIntrinsic, NativeFunction nativeConstructor = callHostFunctionAsConstructor);
52
53 static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
54 {
55 ASSERT(globalObject);
56 return Structure::create(vm, globalObject, prototype, TypeInfo(JSFunctionType, StructureFlags), info());
57 }
58
59 NativeStdFunctionCell* nativeStdFunctionCell() { return m_functionCell.get(); }
60
61protected:
62 static void visitChildren(JSCell*, SlotVisitor&);
63
64 void finishCreation(VM&, NativeExecutable*, int length, const String& name, NativeStdFunctionCell*);
65
66private:
67 JSNativeStdFunction(VM&, JSGlobalObject*, Structure*);
68
69 WriteBarrier<NativeStdFunctionCell> m_functionCell;
70};
71
72} // namespace JSC
73