1 | /* |
2 | * Copyright (C) 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 | * |
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. |
13 | * 3. Neither the name of Apple Inc. ("Apple") nor the names of |
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 | #pragma once |
30 | |
31 | #include "JSCJSValue.h" |
32 | #include "Structure.h" |
33 | |
34 | namespace JSC { |
35 | |
36 | class TypeLocation; |
37 | |
38 | class TypeProfilerLog { |
39 | WTF_MAKE_FAST_ALLOCATED; |
40 | public: |
41 | struct LogEntry { |
42 | WTF_MAKE_STRUCT_FAST_ALLOCATED; |
43 | public: |
44 | friend class LLIntOffsetsExtractor; |
45 | |
46 | JSValue value; |
47 | TypeLocation* location; |
48 | StructureID structureID; |
49 | |
50 | static ptrdiff_t structureIDOffset() { return OBJECT_OFFSETOF(LogEntry, structureID); } |
51 | static ptrdiff_t valueOffset() { return OBJECT_OFFSETOF(LogEntry, value); } |
52 | static ptrdiff_t locationOffset() { return OBJECT_OFFSETOF(LogEntry, location); } |
53 | }; |
54 | |
55 | |
56 | TypeProfilerLog(VM&); |
57 | ~TypeProfilerLog(); |
58 | |
59 | JS_EXPORT_PRIVATE void processLogEntries(VM&, const String&); |
60 | LogEntry* logEndPtr() const { return m_logEndPtr; } |
61 | |
62 | void visit(SlotVisitor&); |
63 | |
64 | static ptrdiff_t logStartOffset() { return OBJECT_OFFSETOF(TypeProfilerLog, m_logStartPtr); } |
65 | static ptrdiff_t currentLogEntryOffset() { return OBJECT_OFFSETOF(TypeProfilerLog, m_currentLogEntryPtr); } |
66 | |
67 | private: |
68 | friend class LLIntOffsetsExtractor; |
69 | |
70 | VM& m_vm; |
71 | unsigned m_logSize; |
72 | LogEntry* m_logStartPtr; |
73 | LogEntry* m_currentLogEntryPtr; |
74 | LogEntry* m_logEndPtr; |
75 | }; |
76 | |
77 | } // namespace JSC |
78 | |