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Side by Side Diff: Source/wtf/VectorTraits.h

Issue 654933004: Remove now-unnecessary VectorTraits specializations. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Created 6 years, 2 months ago
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1 /* 1 /*
2 * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved. 2 * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
3 * 3 *
4 * This library is free software; you can redistribute it and/or 4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public 5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either 6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version. 7 * version 2 of the License, or (at your option) any later version.
8 * 8 *
9 * This library is distributed in the hope that it will be useful, 9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details. 12 * Library General Public License for more details.
13 * 13 *
14 * You should have received a copy of the GNU Library General Public License 14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to 15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA. 17 * Boston, MA 02110-1301, USA.
18 * 18 *
19 */ 19 */
20 20
21 #ifndef WTF_VectorTraits_h 21 #ifndef WTF_VectorTraits_h
22 #define WTF_VectorTraits_h 22 #define WTF_VectorTraits_h
23 23
24 #include "wtf/OwnPtr.h" 24 #include "wtf/OwnPtr.h"
25 #include "wtf/RefPtr.h" 25 #include "wtf/RefPtr.h"
26 #include "wtf/TypeTraits.h" 26 #include "wtf/TypeTraits.h"
27 #include <type_traits>
27 #include <utility> 28 #include <utility>
28 29
29 using std::pair; 30 using std::pair;
30 31
31 namespace WTF { 32 namespace WTF {
32 33
33 class AtomicString; 34 class AtomicString;
34 35
35 template<typename T> 36 template<typename T>
36 struct VectorTraitsBase 37 struct VectorTraitsBase
37 { 38 {
38 static const bool needsDestruction = !IsPod<T>::value; 39 static const bool needsDestruction = !std::is_trivially_destructible<T>: :value;
39 static const bool canInitializeWithMemset = IsPod<T>::value; 40 static const bool canInitializeWithMemset = std::is_pod<T>::value;
40 static const bool canMoveWithMemcpy = IsPod<T>::value; 41 static const bool canMoveWithMemcpy = std::is_pod<T>::value;
41 static const bool canCopyWithMemcpy = IsPod<T>::value; 42 static const bool canCopyWithMemcpy = std::is_pod<T>::value;
42 static const bool canFillWithMemset = IsPod<T>::value && (sizeof(T) == s izeof(char)); 43 static const bool canFillWithMemset = std::is_pod<T>::value && (sizeof(T ) == sizeof(char));
43 static const bool canCompareWithMemcmp = IsPod<T>::value; 44 static const bool canCompareWithMemcmp = std::is_pod<T>::value;
44 template<typename U = void> 45 template<typename U = void>
45 struct NeedsTracingLazily { 46 struct NeedsTracingLazily {
46 static const bool value = NeedsTracing<T>::value; 47 static const bool value = NeedsTracing<T>::value;
47 }; 48 };
48 static const WeakHandlingFlag weakHandlingFlag = NoWeakHandlingInCollect ions; // We don't support weak handling in vectors. 49 static const WeakHandlingFlag weakHandlingFlag = NoWeakHandlingInCollect ions; // We don't support weak handling in vectors.
49 }; 50 };
50 51
51 template<typename T> 52 template<typename T>
52 struct VectorTraits : VectorTraitsBase<T> { }; 53 struct VectorTraits : VectorTraitsBase<T> { };
53 54
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114 struct VectorTraits<ClassName> : VectorTraitsBase<ClassName> \ 115 struct VectorTraits<ClassName> : VectorTraitsBase<ClassName> \
115 { \ 116 { \
116 static const bool canInitializeWithMemset = true; \ 117 static const bool canInitializeWithMemset = true; \
117 }; \ 118 }; \
118 } 119 }
119 120
120 using WTF::VectorTraits; 121 using WTF::VectorTraits;
121 using WTF::SimpleClassVectorTraits; 122 using WTF::SimpleClassVectorTraits;
122 123
123 #endif // WTF_VectorTraits_h 124 #endif // WTF_VectorTraits_h
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