1  /*
 2   * Copyright (C) 2017-2020 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 "AccessCase.h"
31  
32  namespace JSC {
33  
34  class IntrinsicGetterAccessCase final : public AccessCase {
35  public:
36      typedef AccessCase Base;
37      friend class AccessCase;
38  
39      JSFunction* intrinsicFunction() const { return m_intrinsicFunction.get(); }
40      Intrinsic intrinsic() const { return m_intrinsicFunction->intrinsic(); }
41  
42      static bool canEmitIntrinsicGetter(JSFunction*, Structure*);
43      void emitIntrinsicGetter(AccessGenerationState&);
44  
45      static std::unique_ptr<AccessCase> create(VM&, JSCell*, CacheableIdentifier, PropertyOffset, Structure*, const ObjectPropertyConditionSet&, JSFunction* intrinsicFunction, std::unique_ptr<PolyProtoAccessChain>);
46  
47      std::unique_ptr<AccessCase> clone() const final;
48  
49      ~IntrinsicGetterAccessCase() final;
50  
51  private:
52      IntrinsicGetterAccessCase(VM&, JSCell*, CacheableIdentifier, PropertyOffset, Structure*, const ObjectPropertyConditionSet&, JSFunction* intrinsicFunction, std::unique_ptr<PolyProtoAccessChain>);
53  
54      WriteBarrier<JSFunction> m_intrinsicFunction;
55  };
56  
57  } // namespace JSC
58  
59  #endif // ENABLE(JIT)