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Side by Side Diff: Source/WTF/wtf/MemoryInstrumentationSequence.h

Issue 14238015: Move Source/WTF/wtf to Source/wtf (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Created 7 years, 8 months ago
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1 /*
2 * Copyright (C) 2012 Google 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 are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #ifndef MemoryInstrumentationSequence_h
32 #define MemoryInstrumentationSequence_h
33
34 #include <wtf/MemoryInstrumentation.h>
35 #include <wtf/TypeTraits.h>
36
37 namespace WTF {
38
39 template <typename T> struct NotConvertibleToInteger {
40 };
41
42 // Default implementation with integer type filter.
43 template<typename ValueType>
44 struct SequenceMemoryInstrumentationTraits {
45 template <typename I> static void reportMemoryUsage(I begin, I end, MemoryCl assInfo& info)
46 {
47 // Check if type is convertible to integer to handle iteration through e num values.
48 typedef SequenceMemoryInstrumentationTraits<typename Conditional<IsConve rtibleToInteger<ValueType>::value, int, NotConvertibleToInteger<ValueType> >::Ty pe> SequenceTraits;
49 SequenceTraits::reportMemoryUsage(begin, end, info);
50 }
51
52 };
53
54 // Specialization for the types which can't be converted to int.
55 template<typename ValueType>
56 struct SequenceMemoryInstrumentationTraits<NotConvertibleToInteger<ValueType> > {
57 template <typename I>
58 static void reportMemoryUsage(I iterator, I end, MemoryClassInfo& info)
59 {
60 while (iterator != end) {
61 info.addMember(*iterator, "item");
62 ++iterator;
63 }
64 }
65 };
66
67 template<> struct SequenceMemoryInstrumentationTraits<int> {
68 template <typename I> static void reportMemoryUsage(I, I, MemoryClassInfo&) { }
69 };
70
71 template<> struct SequenceMemoryInstrumentationTraits<void*> {
72 template <typename I> static void reportMemoryUsage(I, I, MemoryClassInfo&) { }
73 };
74
75 template<> struct SequenceMemoryInstrumentationTraits<char*> {
76 template <typename I> static void reportMemoryUsage(I, I, MemoryClassInfo&) { }
77 };
78
79 template<> struct SequenceMemoryInstrumentationTraits<const char*> {
80 template <typename I> static void reportMemoryUsage(I, I, MemoryClassInfo&) { }
81 };
82
83 template<> struct SequenceMemoryInstrumentationTraits<const void*> {
84 template <typename I> static void reportMemoryUsage(I, I, MemoryClassInfo&) { }
85 };
86
87 }
88
89 #endif // !defined(MemoryInstrumentationSequence_h)
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