1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef BASE_MAC_SCOPED_BLOCK_H_ 6 #define BASE_MAC_SCOPED_BLOCK_H_ 7 8 #include <Block.h> 9 10 #include "base/mac/scoped_typeref.h" 11 12 namespace base { 13 namespace mac { 14 15 namespace internal { 16 17 template <typename B> 18 struct ScopedBlockTraits { 19 static B InvalidValue() { return nullptr; } 20 static B Retain(B block) { return Block_copy(block); } 21 static void Release(B block) { Block_release(block); } 22 }; 23 24 } // namespace internal 25 26 // ScopedBlock<> is patterned after ScopedCFTypeRef<>, but uses Block_copy() and 27 // Block_release() instead of CFRetain() and CFRelease(). 28 29 template <typename B> 30 using ScopedBlock = ScopedTypeRef<B, internal::ScopedBlockTraits<B>>; 31 32 } // namespace mac 33 } // namespace base 34 35 #endif // BASE_MAC_SCOPED_BLOCK_H_ 36
