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base / mac / scoped_aedesc.h [blame]
// Copyright 2010 The Chromium Authors
// 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>
namespace base::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(const ScopedAEDesc&) = delete;
ScopedAEDesc& operator=(const ScopedAEDesc&) = delete;
~ScopedAEDesc() {
AEDisposeDesc(&desc_);
}
// Used for in parameters.
operator const AEDescType*() {
return &desc_;
}
// Used for out parameters.
AEDescType* OutPointer() {
return &desc_;
}
private:
AEDescType desc_;
};
} // namespace base::mac
#endif // BASE_MAC_SCOPED_AEDESC_H_