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comparison clang/test/Analysis/os_smart_ptr.h @ 150:1d019706d866

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LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
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147:c2174574ed3a 150:1d019706d866
1 #ifndef _OS_SMART_POINTER_H
2 #define _OS_SMART_POINTER_H
3
4 #include "os_object_base.h"
5
6 namespace os {
7
8 template<class T>
9 struct smart_ptr {
10 smart_ptr() : pointer(nullptr) {}
11
12 explicit smart_ptr(T *&p) : pointer(p) {
13 if (pointer) {
14 _retain(pointer);
15 }
16 }
17
18 smart_ptr(smart_ptr const &rhs) : pointer(rhs.pointer) {
19 if (pointer) {
20 _retain(pointer);
21 }
22 }
23
24 smart_ptr & operator=(T *&rhs) {
25 smart_ptr(rhs).swap(*this);
26 return *this;
27 }
28
29 smart_ptr & operator=(smart_ptr &rhs) {
30 smart_ptr(rhs).swap(*this);
31 return *this;
32 }
33
34 ~smart_ptr() {
35 if (pointer) {
36 _release(pointer);
37 }
38 }
39
40 void reset() {
41 smart_ptr().swap(*this);
42 }
43
44 T *get() const {
45 return pointer;
46 }
47
48 T ** get_for_out_param() {
49 reset();
50 return &pointer;
51 }
52
53 T * operator->() const {
54 return pointer;
55 }
56
57 explicit
58 operator bool() const {
59 return pointer != nullptr;
60 }
61
62 inline void
63 swap(smart_ptr &p) {
64 T *temp = pointer;
65 pointer = p.pointer;
66 p.pointer = temp;
67 }
68
69 static inline void
70 _retain(T *obj) {
71 obj->retain();
72 }
73
74 static inline void
75 _release(T *obj) {
76 obj->release();
77 }
78
79 static inline T *
80 _alloc() {
81 return new T;
82 }
83
84 T *pointer;
85 };
86 } // namespace os
87
88 #endif /* _OS_SMART_POINTER_H */