projects / apple / javascriptcore.git / blame
| Commit | Line | Data |
|---|---|---|
| 81345200 A |
1 | /* |
| 2 | * Copyright (C) 2013, 2014 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 IntendedStructureChain_h | |
| 27 | #define IntendedStructureChain_h | |
| 28 | ||
| 29 | #include "Structure.h" | |
| 30 | #include <wtf/RefCounted.h> | |
| 31 | ||
| 32 | namespace JSC { | |
| 33 | ||
| 34 | class CodeBlock; | |
| 35 | class JSGlobalObject; | |
| 36 | class StructureChain; | |
| 37 | class VM; | |
| 38 | struct DumpContext; | |
| 39 | ||
| 40 | class IntendedStructureChain : public RefCounted<IntendedStructureChain> { | |
| 41 | public: | |
| 42 | IntendedStructureChain(JSGlobalObject* globalObject, Structure* head); | |
| 43 | IntendedStructureChain(CodeBlock* codeBlock, Structure* head, Structure* prototypeStructure); | |
| 44 | IntendedStructureChain(CodeBlock* codeBlock, Structure* head, StructureChain* chain); | |
| 45 | IntendedStructureChain(CodeBlock* codeBlock, Structure* head, StructureChain* chain, unsigned count); | |
| 46 | ~IntendedStructureChain(); | |
| 47 | ||
| 48 | bool isStillValid() const; | |
| 49 | bool matches(StructureChain*) const; | |
| 50 | StructureChain* chain(VM&) const; | |
| 51 | bool mayInterceptStoreTo(VM&, StringImpl* uid); | |
| 52 | bool isNormalized(); | |
| 53 | ||
| 54 | Structure* head() const { return m_head; } | |
| 55 | ||
| 56 | size_t size() const { return m_vector.size(); } | |
| 57 | Structure* at(size_t index) { return m_vector[index]; } | |
| 58 | Structure* operator[](size_t index) { return at(index); } | |
| 59 | ||
| 60 | JSObject* terminalPrototype() const; | |
| 61 | ||
| 62 | Structure* last() const { return m_vector.last(); } | |
| 63 | ||
| 64 | void visitChildren(SlotVisitor&); | |
| 65 | void dump(PrintStream&) const; | |
| 66 | void dumpInContext(PrintStream&, DumpContext*) const; | |
| 67 | ||
| 68 | private: | |
| 69 | JSGlobalObject* m_globalObject; | |
| 70 | Structure* m_head; | |
| 71 | Vector<Structure*> m_vector; | |
| 72 | }; | |
| 73 | ||
| 74 | } // namespace JSC | |
| 75 | ||
| 76 | #endif // IntendedStructureChain_h |