// Copyright (c) 2010 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #ifndef BASE_MAC_SCOPED_AEDESC_H_ #define BASE_MAC_SCOPED_AEDESC_H_ #import <CoreServices/CoreServices.h> #include "base/basictypes.h" namespace base { namespace mac { // The ScopedAEDesc is used to scope AppleEvent descriptors. On creation, // it will store a NULL descriptor. On destruction, it will dispose of the // descriptor. // // This class is parameterized for additional type safety checks. You can use // the generic AEDesc type by not providing a template parameter: // ScopedAEDesc<> desc; template <typename AEDescType = AEDesc> class ScopedAEDesc { public: ScopedAEDesc() { AECreateDesc(typeNull, NULL, 0, &desc_); } ~ScopedAEDesc() { AEDisposeDesc(&desc_); } // Used for in parameters. operator const AEDescType*() { return &desc_; } // Used for out parameters. AEDescType* OutPointer() { return &desc_; } private: AEDescType desc_; DISALLOW_COPY_AND_ASSIGN(ScopedAEDesc); }; } // namespace mac } // namespace base #endif // BASE_MAC_SCOPED_AEDESC_H_