1/*
2 * Copyright (C) 2017-2018 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#if ENABLE(JIT)
29
30#include "MacroAssemblerCodeRef.h"
31#include "ProxyableAccessCase.h"
32
33namespace JSC {
34
35class GetterSetterAccessCase : public ProxyableAccessCase {
36public:
37 typedef ProxyableAccessCase Base;
38 friend class AccessCase;
39
40 // This can return null if it hasn't been generated yet. That's
41 // actually somewhat likely because of how we do buffering of new cases.
42 CallLinkInfo* callLinkInfo() const { return m_callLinkInfo.get(); }
43 JSObject* customSlotBase() const { return m_customSlotBase.get(); }
44 Optional<DOMAttributeAnnotation> domAttribute() const { return m_domAttribute; }
45
46 bool hasAlternateBase() const override;
47 JSObject* alternateBase() const override;
48
49 void emitDOMJITGetter(AccessGenerationState&, const DOMJIT::GetterSetter*, GPRReg baseForGetGPR);
50
51 static std::unique_ptr<AccessCase> create(
52 VM&, JSCell* owner, AccessType, PropertyOffset, Structure*,
53 const ObjectPropertyConditionSet&, bool viaProxy, WatchpointSet* additionalSet, FunctionPtr<OperationPtrTag> customGetter,
54 JSObject* customSlotBase, Optional<DOMAttributeAnnotation>, std::unique_ptr<PolyProtoAccessChain>);
55
56 static std::unique_ptr<AccessCase> create(VM&, JSCell* owner, AccessType, Structure*, PropertyOffset,
57 const ObjectPropertyConditionSet&, std::unique_ptr<PolyProtoAccessChain>,
58 FunctionPtr<OperationPtrTag> customSetter = nullptr, JSObject* customSlotBase = nullptr);
59
60 void dumpImpl(PrintStream&, CommaPrinter&) const override;
61 std::unique_ptr<AccessCase> clone() const override;
62
63 ~GetterSetterAccessCase();
64
65 FunctionPtr<OperationPtrTag> customAccessor() const { return m_customAccessor; }
66
67private:
68 GetterSetterAccessCase(VM&, JSCell*, AccessType, PropertyOffset, Structure*, const ObjectPropertyConditionSet&, bool viaProxy, WatchpointSet* additionalSet, JSObject* customSlotBase, std::unique_ptr<PolyProtoAccessChain>);
69
70 GetterSetterAccessCase(const GetterSetterAccessCase&);
71
72 WriteBarrier<JSObject> m_customSlotBase;
73 std::unique_ptr<CallLinkInfo> m_callLinkInfo;
74 FunctionPtr<OperationPtrTag> m_customAccessor;
75 Optional<DOMAttributeAnnotation> m_domAttribute;
76};
77
78} // namespace JSC
79
80#endif // ENABLE(JIT)
81