1  /*
 2   * Copyright (C) 2015-2020 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  #include "ECMAMode.h"
29  #include "StructureIDTable.h"
30  
31  namespace JSC {
32  
33  class PutByIdFlags {
34  public:
35      constexpr static PutByIdFlags create(ECMAMode ecmaMode)
36      {
37          return PutByIdFlags(false, ecmaMode);
38      }
39  
40      // A direct put_by_id means that we store the property without checking if the
41      // prototype chain has a setter.
42      constexpr static PutByIdFlags createDirect(ECMAMode ecmaMode)
43      {
44          return PutByIdFlags(true, ecmaMode);
45      }
46  
47      bool isDirect() const { return m_isDirect; }
48      ECMAMode ecmaMode() const { return m_ecmaMode; }
49  
50  private:
51      constexpr PutByIdFlags(bool isDirect, ECMAMode ecmaMode)
52          : m_isDirect(isDirect)
53          , m_ecmaMode(ecmaMode)
54      {
55      }
56  
57      bool m_isDirect;
58      ECMAMode m_ecmaMode;
59  };
60  
61  } // namespace JSC
62  
63  namespace WTF {
64  
65  class PrintStream;
66  
67  void printInternal(PrintStream&, JSC::PutByIdFlags);
68  
69  } // namespace WTF