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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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