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Side by Side Diff: include/private/SkTemplates.h

Issue 1482343002: Revert of skstd -> std for unique_ptr (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 5 years ago
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1 1
2 /* 2 /*
3 * Copyright 2006 The Android Open Source Project 3 * Copyright 2006 The Android Open Source Project
4 * 4 *
5 * Use of this source code is governed by a BSD-style license that can be 5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file. 6 * found in the LICENSE file.
7 */ 7 */
8 8
9 9
10 #ifndef SkTemplates_DEFINED 10 #ifndef SkTemplates_DEFINED
11 #define SkTemplates_DEFINED 11 #define SkTemplates_DEFINED
12 12
13 #include "SkMath.h" 13 #include "SkMath.h"
14 #include "SkTLogic.h" 14 #include "SkTLogic.h"
15 #include "SkTypes.h" 15 #include "SkTypes.h"
16 #include "SkUniquePtr.h"
16 #include "SkUtility.h" 17 #include "SkUtility.h"
17 #include <limits.h> 18 #include <limits.h>
18 #include <memory>
19 #include <new> 19 #include <new>
20 20
21 /** \file SkTemplates.h 21 /** \file SkTemplates.h
22 22
23 This file contains light-weight template classes for type-safe and exception -safe 23 This file contains light-weight template classes for type-safe and exception -safe
24 resource management. 24 resource management.
25 */ 25 */
26 26
27 /** 27 /**
28 * Marks a local variable as known to be unused (to avoid warnings). 28 * Marks a local variable as known to be unused (to avoid warnings).
(...skipping 23 matching lines...) Expand all
52 52
53 /** \class SkAutoTCallVProc 53 /** \class SkAutoTCallVProc
54 54
55 Call a function when this goes out of scope. The template uses two 55 Call a function when this goes out of scope. The template uses two
56 parameters, the object, and a function that is to be called in the destructo r. 56 parameters, the object, and a function that is to be called in the destructo r.
57 If detach() is called, the object reference is set to null. If the object 57 If detach() is called, the object reference is set to null. If the object
58 reference is null when the destructor is called, we do not call the 58 reference is null when the destructor is called, we do not call the
59 function. 59 function.
60 */ 60 */
61 template <typename T, void (*P)(T*)> class SkAutoTCallVProc 61 template <typename T, void (*P)(T*)> class SkAutoTCallVProc
62 : public std::unique_ptr<T, SkFunctionWrapper<void, T, P>> { 62 : public skstd::unique_ptr<T, SkFunctionWrapper<void, T, P>> {
63 public: 63 public:
64 SkAutoTCallVProc(T* obj): std::unique_ptr<T, SkFunctionWrapper<void, T, P>>( obj) {} 64 SkAutoTCallVProc(T* obj): skstd::unique_ptr<T, SkFunctionWrapper<void, T, P> >(obj) {}
65 65
66 operator T*() const { return this->get(); } 66 operator T*() const { return this->get(); }
67 T* detach() { return this->release(); } 67 T* detach() { return this->release(); }
68 }; 68 };
69 69
70 /** \class SkAutoTCallIProc 70 /** \class SkAutoTCallIProc
71 71
72 Call a function when this goes out of scope. The template uses two 72 Call a function when this goes out of scope. The template uses two
73 parameters, the object, and a function that is to be called in the destructor. 73 parameters, the object, and a function that is to be called in the destructor.
74 If detach() is called, the object reference is set to null. If the object 74 If detach() is called, the object reference is set to null. If the object
75 reference is null when the destructor is called, we do not call the 75 reference is null when the destructor is called, we do not call the
76 function. 76 function.
77 */ 77 */
78 template <typename T, int (*P)(T*)> class SkAutoTCallIProc 78 template <typename T, int (*P)(T*)> class SkAutoTCallIProc
79 : public std::unique_ptr<T, SkFunctionWrapper<int, T, P>> { 79 : public skstd::unique_ptr<T, SkFunctionWrapper<int, T, P>> {
80 public: 80 public:
81 SkAutoTCallIProc(T* obj): std::unique_ptr<T, SkFunctionWrapper<int, T, P>>(o bj) {} 81 SkAutoTCallIProc(T* obj): skstd::unique_ptr<T, SkFunctionWrapper<int, T, P>> (obj) {}
82 82
83 operator T*() const { return this->get(); } 83 operator T*() const { return this->get(); }
84 T* detach() { return this->release(); } 84 T* detach() { return this->release(); }
85 }; 85 };
86 86
87 /** \class SkAutoTDelete 87 /** \class SkAutoTDelete
88 An SkAutoTDelete<T> is like a T*, except that the destructor of SkAutoTDelete< T> 88 An SkAutoTDelete<T> is like a T*, except that the destructor of SkAutoTDelete< T>
89 automatically deletes the pointer it holds (if any). That is, SkAutoTDelete<T > 89 automatically deletes the pointer it holds (if any). That is, SkAutoTDelete<T >
90 owns the T object that it points to. Like a T*, an SkAutoTDelete<T> may hold 90 owns the T object that it points to. Like a T*, an SkAutoTDelete<T> may hold
91 either NULL or a pointer to a T object. Also like T*, SkAutoTDelete<T> is 91 either NULL or a pointer to a T object. Also like T*, SkAutoTDelete<T> is
92 thread-compatible, and once you dereference it, you get the threadsafety 92 thread-compatible, and once you dereference it, you get the threadsafety
93 guarantees of T. 93 guarantees of T.
94 94
95 The size of a SkAutoTDelete is small: sizeof(SkAutoTDelete<T>) == sizeof(T*) 95 The size of a SkAutoTDelete is small: sizeof(SkAutoTDelete<T>) == sizeof(T*)
96 */ 96 */
97 template <typename T> class SkAutoTDelete : public std::unique_ptr<T> { 97 template <typename T> class SkAutoTDelete : public skstd::unique_ptr<T> {
98 public: 98 public:
99 SkAutoTDelete(T* obj = NULL) : std::unique_ptr<T>(obj) {} 99 SkAutoTDelete(T* obj = NULL) : skstd::unique_ptr<T>(obj) {}
100 100
101 operator T*() const { return this->get(); } 101 operator T*() const { return this->get(); }
102 void free() { this->reset(nullptr); } 102 void free() { this->reset(nullptr); }
103 T* detach() { return this->release(); } 103 T* detach() { return this->release(); }
104 }; 104 };
105 105
106 template <typename T> class SkAutoTDeleteArray : public std::unique_ptr<T[]> { 106 template <typename T> class SkAutoTDeleteArray : public skstd::unique_ptr<T[]> {
107 public: 107 public:
108 SkAutoTDeleteArray(T array[]) : std::unique_ptr<T[]>(array) {} 108 SkAutoTDeleteArray(T array[]) : skstd::unique_ptr<T[]>(array) {}
109 109
110 void free() { this->reset(nullptr); } 110 void free() { this->reset(nullptr); }
111 T* detach() { return this->release(); } 111 T* detach() { return this->release(); }
112 }; 112 };
113 113
114 /** Allocate an array of T elements, and free the array in the destructor 114 /** Allocate an array of T elements, and free the array in the destructor
115 */ 115 */
116 template <typename T> class SkAutoTArray : SkNoncopyable { 116 template <typename T> class SkAutoTArray : SkNoncopyable {
117 public: 117 public:
118 SkAutoTArray() { 118 SkAutoTArray() {
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442 * Returns void* because this object does not initialize the 442 * Returns void* because this object does not initialize the
443 * memory. Use placement new for types that require a cons. 443 * memory. Use placement new for types that require a cons.
444 */ 444 */
445 void* get() { return fStorage.get(); } 445 void* get() { return fStorage.get(); }
446 const void* get() const { return fStorage.get(); } 446 const void* get() const { return fStorage.get(); }
447 private: 447 private:
448 SkAlignedSStorage<sizeof(T)*N> fStorage; 448 SkAlignedSStorage<sizeof(T)*N> fStorage;
449 }; 449 };
450 450
451 #endif 451 #endif
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