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9dae56ea | 1 | /* |
93a37866 | 2 | * Copyright (C) 2007, 2008, 2012 Apple Inc. All rights reserved. |
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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 | * | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
81345200 | 13 | * 3. Neither the name of Apple Inc. ("Apple") nor the names of |
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14 | * its contributors may be used to endorse or promote products derived |
15 | * from this software without specific prior written permission. | |
16 | * | |
17 | * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY | |
18 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
19 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
20 | * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY | |
21 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
22 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
23 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
24 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
27 | */ | |
28 | ||
29 | #ifndef JSVariableObject_h | |
30 | #define JSVariableObject_h | |
31 | ||
32 | #include "JSObject.h" | |
93a37866 | 33 | #include "JSSymbolTableObject.h" |
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34 | #include "Register.h" |
35 | #include "SymbolTable.h" | |
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36 | |
37 | namespace JSC { | |
38 | ||
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39 | class LLIntOffsetsExtractor; |
40 | class Register; | |
9dae56ea | 41 | |
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42 | class JSVariableObject : public JSSymbolTableObject { |
43 | friend class JIT; | |
44 | friend class LLIntOffsetsExtractor; | |
9dae56ea | 45 | |
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46 | public: |
47 | typedef JSSymbolTableObject Base; | |
6fe7ccc8 | 48 | |
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49 | WriteBarrierBase<Unknown>* registers() { return m_registers; } |
50 | WriteBarrierBase<Unknown>& registerAt(int index) const { return m_registers[index]; } | |
9dae56ea | 51 | |
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52 | WriteBarrierBase<Unknown>* const * addressOfRegisters() const { return &m_registers; } |
53 | static size_t offsetOfRegisters() { return OBJECT_OFFSETOF(JSVariableObject, m_registers); } | |
14957cd0 | 54 | |
81345200 | 55 | DECLARE_INFO; |
14957cd0 | 56 | |
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57 | protected: |
58 | static const unsigned StructureFlags = Base::StructureFlags; | |
93a37866 | 59 | |
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60 | JSVariableObject( |
61 | VM& vm, | |
62 | Structure* structure, | |
63 | Register* registers, | |
64 | JSScope* scope, | |
65 | SymbolTable* symbolTable = 0) | |
66 | : Base(vm, structure, scope, symbolTable) | |
67 | , m_registers(reinterpret_cast<WriteBarrierBase<Unknown>*>(registers)) | |
68 | { | |
69 | } | |
9dae56ea | 70 | |
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71 | WriteBarrierBase<Unknown>* m_registers; // "r" in the stack. |
72 | }; | |
9dae56ea | 73 | |
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74 | } // namespace JSC |
75 | ||
76 | #endif // JSVariableObject_h |