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Side by Side Diff: base/callback_internal.h

Issue 7461141: Rename BASE_API to BASE_EXPORT. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: '' Created 9 years, 4 months ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 // This file contains utility functions and classes that help the 5 // This file contains utility functions and classes that help the
6 // implementation, and management of the Callback objects. 6 // implementation, and management of the Callback objects.
7 7
8 #ifndef BASE_CALLBACK_INTERNAL_H_ 8 #ifndef BASE_CALLBACK_INTERNAL_H_
9 #define BASE_CALLBACK_INTERNAL_H_ 9 #define BASE_CALLBACK_INTERNAL_H_
10 #pragma once 10 #pragma once
11 11
12 #include <stddef.h> 12 #include <stddef.h>
13 13
14 #include "base/base_api.h" 14 #include "base/base_export.h"
15 #include "base/memory/ref_counted.h" 15 #include "base/memory/ref_counted.h"
16 16
17 namespace base { 17 namespace base {
18 namespace internal { 18 namespace internal {
19 19
20 // InvokerStorageBase is used to provide an opaque handle that the Callback 20 // InvokerStorageBase is used to provide an opaque handle that the Callback
21 // class can use to represent a function object with bound arguments. It 21 // class can use to represent a function object with bound arguments. It
22 // behaves as an existential type that is used by a corresponding 22 // behaves as an existential type that is used by a corresponding
23 // DoInvoke function to perform the function execution. This allows 23 // DoInvoke function to perform the function execution. This allows
24 // us to shield the Callback class from the types of the bound argument via 24 // us to shield the Callback class from the types of the bound argument via
(...skipping 22 matching lines...) Expand all
47 mutable scoped_refptr<InvokerStorageBase> invoker_storage_; 47 mutable scoped_refptr<InvokerStorageBase> invoker_storage_;
48 }; 48 };
49 49
50 template <typename T> 50 template <typename T>
51 InvokerStorageHolder<T> MakeInvokerStorageHolder(T* o) { 51 InvokerStorageHolder<T> MakeInvokerStorageHolder(T* o) {
52 return InvokerStorageHolder<T>(o); 52 return InvokerStorageHolder<T>(o);
53 } 53 }
54 54
55 // Holds the Callback methods that don't require specialization to reduce 55 // Holds the Callback methods that don't require specialization to reduce
56 // template bloat. 56 // template bloat.
57 class BASE_API CallbackBase { 57 class BASE_EXPORT CallbackBase {
58 public: 58 public:
59 // Returns true if Callback is null (doesn't refer to anything). 59 // Returns true if Callback is null (doesn't refer to anything).
60 bool is_null() const; 60 bool is_null() const;
61 61
62 // Returns the Callback into an uninitalized state. 62 // Returns the Callback into an uninitalized state.
63 void Reset(); 63 void Reset();
64 64
65 bool Equals(const CallbackBase& other) const; 65 bool Equals(const CallbackBase& other) const;
66 66
67 protected: 67 protected:
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126 template <typename T> 126 template <typename T>
127 struct ParamTraits<T[]> { 127 struct ParamTraits<T[]> {
128 typedef const T* ForwardType; 128 typedef const T* ForwardType;
129 typedef const T* StorageType; 129 typedef const T* StorageType;
130 }; 130 };
131 131
132 } // namespace internal 132 } // namespace internal
133 } // namespace base 133 } // namespace base
134 134
135 #endif // BASE_CALLBACK_INTERNAL_H_ 135 #endif // BASE_CALLBACK_INTERNAL_H_
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