Index: base/scoped_aedesc.h |
diff --git a/base/scoped_aedesc.h b/base/scoped_aedesc.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..92398878083c3e5308099002dc5e97c618f3542e |
--- /dev/null |
+++ b/base/scoped_aedesc.h |
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+// 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_SCOPED_AEDESC_H_ |
+#define BASE_SCOPED_AEDESC_H_ |
+#pragma once |
+ |
+#import <CoreServices/CoreServices.h> |
+ |
+#include "base/basictypes.h" |
+ |
+// The scoped_aedesc 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: |
+// scoped_aedesc<> desc; |
+template <typename AEDescType = AEDesc> |
+class scoped_aedesc { |
+ public: |
+ scoped_aedesc() { |
+ AECreateDesc(typeNull, NULL, 0, &desc_); |
+ } |
+ |
+ ~scoped_aedesc() { |
+ 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(scoped_aedesc); |
+}; |
+ |
+#endif // BASE_SCOPED_AEDESC_H_ |