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Side by Side Diff: third_party/WebKit/Source/platform/CrossThreadCopier.h

Issue 1477213003: More switching to standard type traits (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Excluded WTF::IsSubclass from the patch Created 4 years, 11 months ago
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1 /* 1 /*
2 * Copyright (C) 2009, 2010 Google Inc. All rights reserved. 2 * Copyright (C) 2009, 2010 Google Inc. All rights reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are 5 * modification, are permitted provided that the following conditions are
6 * met: 6 * met:
7 * 7 *
8 * * Redistributions of source code must retain the above copyright 8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer. 9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above 10 * * Redistributions in binary form must reproduce the above
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80 }; 80 };
81 81
82 // Custom copy methods. 82 // Custom copy methods.
83 template<typename T> struct CrossThreadCopierBase<false, true, false, T> { 83 template<typename T> struct CrossThreadCopierBase<false, true, false, T> {
84 STATIC_ONLY(CrossThreadCopierBase); 84 STATIC_ONLY(CrossThreadCopierBase);
85 typedef typename WTF::RemoveTemplate<T, RefPtr>::Type TypeWithoutRefPtr; 85 typedef typename WTF::RemoveTemplate<T, RefPtr>::Type TypeWithoutRefPtr;
86 typedef typename WTF::RemoveTemplate<TypeWithoutRefPtr, PassRefPtr>::Typ e TypeWithoutPassRefPtr; 86 typedef typename WTF::RemoveTemplate<TypeWithoutRefPtr, PassRefPtr>::Typ e TypeWithoutPassRefPtr;
87 typedef typename std::remove_pointer<TypeWithoutPassRefPtr>::type RefCou ntedType; 87 typedef typename std::remove_pointer<TypeWithoutPassRefPtr>::type RefCou ntedType;
88 88
89 // Verify that only one of the above did a change. 89 // Verify that only one of the above did a change.
90 static_assert((WTF::IsSameType<RefPtr<RefCountedType>, T>::value 90 static_assert((std::is_same<RefPtr<RefCountedType>, T>::value
91 || WTF::IsSameType<PassRefPtr<RefCountedType>, T>::value 91 || std::is_same<PassRefPtr<RefCountedType>, T>::value
92 || WTF::IsSameType<RefCountedType*, T>::value), 92 || std::is_same<RefCountedType*, T>::value),
93 "only one type modification should be allowed"); 93 "only one type modification should be allowed");
94 94
95 typedef PassRefPtr<RefCountedType> Type; 95 typedef PassRefPtr<RefCountedType> Type;
96 static Type copy(const T& refPtr) 96 static Type copy(const T& refPtr)
97 { 97 {
98 return refPtr; 98 return refPtr;
99 } 99 }
100 }; 100 };
101 101
102 template<typename T> struct CrossThreadCopierBase<false, false, false, PassO wnPtr<T>> { 102 template<typename T> struct CrossThreadCopierBase<false, false, false, PassO wnPtr<T>> {
(...skipping 74 matching lines...) Expand 10 before | Expand all | Expand 10 after
177 177
178 template<typename T> struct CrossThreadCopierBase<false, false, true, WeakMe mber<T>> { 178 template<typename T> struct CrossThreadCopierBase<false, false, true, WeakMe mber<T>> {
179 STATIC_ONLY(CrossThreadCopierBase); 179 STATIC_ONLY(CrossThreadCopierBase);
180 typedef RawPtr<T> Type; 180 typedef RawPtr<T> Type;
181 static Type copy(const WeakMember<T>& ptr) 181 static Type copy(const WeakMember<T>& ptr)
182 { 182 {
183 return ptr; 183 return ptr;
184 } 184 }
185 }; 185 };
186 186
187 template<typename T> struct CrossThreadCopier : public CrossThreadCopierBase <WTF::IsConvertibleToInteger<T>::value, 187 template<typename T> struct CrossThreadCopier : public CrossThreadCopierBase <std::is_convertible<T, int>::value,
188 WTF::IsSubclassOfTemplate<typename WTF::RemoveTemplate<T, RefPtr>::Type, ThreadSafeRefCounted>::value 188 WTF::IsSubclassOfTemplate<typename WTF::RemoveTemplate<T, RefPtr>::Type, ThreadSafeRefCounted>::value
189 || WTF::IsSubclassOfTemplate<typename std::remove_pointer<T>::type, ThreadSafeRefCounted>::value 189 || WTF::IsSubclassOfTemplate<typename std::remove_pointer<T>::type, ThreadSafeRefCounted>::value
190 || WTF::IsSubclassOfTemplate<typename WTF::RemoveTemplate<T, PassRef Ptr>::Type, ThreadSafeRefCounted>::value, 190 || WTF::IsSubclassOfTemplate<typename WTF::RemoveTemplate<T, PassRef Ptr>::Type, ThreadSafeRefCounted>::value,
191 WTF::IsSubclassOfTemplate<typename std::remove_pointer<T>::type, Garbage Collected>::value 191 WTF::IsSubclassOfTemplate<typename std::remove_pointer<T>::type, Garbage Collected>::value
192 || WTF::IsSubclassOfTemplate<typename WTF::RemoveTemplate<T, RawPtr> ::Type, GarbageCollected>::value 192 || WTF::IsSubclassOfTemplate<typename WTF::RemoveTemplate<T, RawPtr> ::Type, GarbageCollected>::value
193 || WTF::IsSubclassOfTemplate<typename WTF::RemoveTemplate<T, Member> ::Type, GarbageCollected>::value 193 || WTF::IsSubclassOfTemplate<typename WTF::RemoveTemplate<T, Member> ::Type, GarbageCollected>::value
194 || WTF::IsSubclassOfTemplate<typename WTF::RemoveTemplate<T, WeakMem ber>::Type, GarbageCollected>::value, 194 || WTF::IsSubclassOfTemplate<typename WTF::RemoveTemplate<T, WeakMem ber>::Type, GarbageCollected>::value,
195 T> { 195 T> {
196 STATIC_ONLY(CrossThreadCopier); 196 STATIC_ONLY(CrossThreadCopier);
197 }; 197 };
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224 } 224 }
225 225
226 template<typename T> AllowCrossThreadAccessWrapper<const WeakPtr<T>&> AllowC rossThreadAccess(const WeakPtr<T>& value) 226 template<typename T> AllowCrossThreadAccessWrapper<const WeakPtr<T>&> AllowC rossThreadAccess(const WeakPtr<T>& value)
227 { 227 {
228 return AllowCrossThreadAccessWrapper<const WeakPtr<T>&>(value); 228 return AllowCrossThreadAccessWrapper<const WeakPtr<T>&>(value);
229 } 229 }
230 230
231 } // namespace blink 231 } // namespace blink
232 232
233 #endif // CrossThreadCopier_h 233 #endif // CrossThreadCopier_h
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