projects / apple / javascriptcore.git / blame
| Commit | Line | Data |
|---|---|---|
| 6fe7ccc8 A |
1 | /* |
| 2 | * Copyright (C) 2012 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 | #ifndef MethodCallLinkStatus_h | |
| 27 | #define MethodCallLinkStatus_h | |
| 28 | ||
| 29 | namespace JSC { | |
| 30 | ||
| 31 | class CodeBlock; | |
| 32 | class JSObject; | |
| 33 | class Structure; | |
| 34 | ||
| 35 | class MethodCallLinkStatus { | |
| 36 | public: | |
| 37 | MethodCallLinkStatus() | |
| 38 | : m_structure(0) | |
| 39 | , m_prototypeStructure(0) | |
| 40 | , m_function(0) | |
| 41 | , m_prototype(0) | |
| 42 | { | |
| 43 | } | |
| 44 | ||
| 45 | MethodCallLinkStatus( | |
| 46 | Structure* structure, | |
| 47 | Structure* prototypeStructure, | |
| 48 | JSObject* function, | |
| 49 | JSObject* prototype) | |
| 50 | : m_structure(structure) | |
| 51 | , m_prototypeStructure(prototypeStructure) | |
| 52 | , m_function(function) | |
| 53 | , m_prototype(prototype) | |
| 54 | { | |
| 55 | if (!m_function) { | |
| 56 | ASSERT(!m_structure); | |
| 57 | ASSERT(!m_prototypeStructure); | |
| 58 | ASSERT(!m_prototype); | |
| 59 | } else | |
| 60 | ASSERT(m_structure); | |
| 61 | ||
| 62 | ASSERT(!m_prototype == !m_prototypeStructure); | |
| 63 | } | |
| 64 | ||
| 65 | static MethodCallLinkStatus computeFor(CodeBlock*, unsigned bytecodeIndex); | |
| 66 | ||
| 67 | bool isSet() const { return !!m_function; } | |
| 68 | bool operator!() const { return !m_function; } | |
| 69 | ||
| 70 | bool needsPrototypeCheck() const { return !!m_prototype; } | |
| 71 | ||
| 72 | Structure* structure() { return m_structure; } | |
| 73 | Structure* prototypeStructure() { return m_prototypeStructure; } | |
| 74 | JSObject* function() const { return m_function; } | |
| 75 | JSObject* prototype() const { return m_prototype; } | |
| 76 | ||
| 77 | private: | |
| 78 | Structure* m_structure; | |
| 79 | Structure* m_prototypeStructure; | |
| 80 | JSObject* m_function; | |
| 81 | JSObject* m_prototype; | |
| 82 | }; | |
| 83 | ||
| 84 | } // namespace JSC | |
| 85 | ||
| 86 | #endif // MethodCallLinkStatus_h | |
| 87 |