1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <sal/config.h>
#include <config_clang.h>
#include <array>
#include <memory>
#include <vector>
#include <unordered_map>
struct XXX {
~XXX() {}
};
class Foo1 {
XXX* m_pbar; // expected-note {{member is here [loplugin:useuniqueptr]}}
~Foo1()
{
delete m_pbar; // expected-error {{unconditional call to delete on a member, should be using std::unique_ptr [loplugin:useuniqueptr]}}
m_pbar = nullptr;
}
};
class Foo2 {
char* m_pbar1; // expected-note {{member is here [loplugin:useuniqueptr]}}
char* m_pbar2; // expected-note {{member is here [loplugin:useuniqueptr]}}
~Foo2()
{
delete[] m_pbar1; // expected-error {{unconditional call to delete on a member, should be using std::unique_ptr [loplugin:useuniqueptr]}}
delete[] m_pbar2; // expected-error {{unconditional call to delete on a member, should be using std::unique_ptr [loplugin:useuniqueptr]}}
}
};
class Foo3 {
char* m_pbar;
bool bMine;
~Foo3()
{
if (bMine)
delete[] m_pbar;
}
};
class Class4 {
int* m_pbar[10]; // expected-note {{member is here [loplugin:useuniqueptr]}}
~Class4()
{
for (int i = 0; i < 10; ++i)
delete m_pbar[i]; // expected-error {{rather manage this member with std::some_container<std::unique_ptr<T>> [loplugin:useuniqueptr]}}
}
};
class Class5 {
int* m_pbar[10]; // expected-note {{member is here [loplugin:useuniqueptr]}}
~Class5()
{
for (auto p : m_pbar) // expected-note {{var is here [loplugin:useuniqueptr]}}
delete p; // expected-error {{rather manage this with std::some_container<std::unique_ptr<T>> [loplugin:useuniqueptr]}} expected-error {{call to delete on a var, should be using std::unique_ptr [loplugin:useuniqueptr]}}
}
};
class Class5a {
int* m_pbar[10]; // expected-note {{member is here [loplugin:useuniqueptr]}}
~Class5a()
{
for (auto p : m_pbar) // expected-note {{var is here [loplugin:useuniqueptr]}}
{
int x = 1;
x = x + 2;
delete p; // expected-error {{rather manage this with std::some_container<std::unique_ptr<T>> [loplugin:useuniqueptr]}} expected-error {{call to delete on a var, should be using std::unique_ptr [loplugin:useuniqueptr]}}
}
}
};
class Class6 {
std::array<int*,10> m_pbar; // expected-note {{member is here [loplugin:useuniqueptr]}}
~Class6()
{
for (auto p : m_pbar) // expected-note {{var is here [loplugin:useuniqueptr]}}
delete p; // expected-error {{rather manage this with std::some_container<std::unique_ptr<T>> [loplugin:useuniqueptr]}} expected-error {{call to delete on a var, should be using std::unique_ptr [loplugin:useuniqueptr]}}
}
};
class Class7 {
std::array<int*,10> m_pbar; // expected-note {{member is here [loplugin:useuniqueptr]}}
~Class7()
{
for (int i = 0; i < 10; ++i)
delete m_pbar[i]; // expected-error {{rather manage this member with std::some_container<std::unique_ptr<T>> [loplugin:useuniqueptr]}}
}
};
class Class8 {
std::unordered_map<int, int*> m_pbar; // expected-note {{member is here [loplugin:useuniqueptr]}}
~Class8()
{
for (auto & i : m_pbar)
delete i.second; // expected-error {{rather manage this with std::some_container<std::unique_ptr<T>> [loplugin:useuniqueptr]}}
}
};
class Foo8 {
XXX* m_pbar1; // expected-note {{member is here [loplugin:useuniqueptr]}}
XXX* m_pbar2; // expected-note {{member is here [loplugin:useuniqueptr]}}
~Foo8()
{
delete m_pbar1; // expected-error {{unconditional call to delete on a member, should be using std::unique_ptr [loplugin:useuniqueptr]}}
delete m_pbar2; // expected-error {{unconditional call to delete on a member, should be using std::unique_ptr [loplugin:useuniqueptr]}}
}
};
class Foo9 {
XXX* m_pbar1; // expected-note {{member is here [loplugin:useuniqueptr]}}
XXX* m_pbar2; // expected-note {{member is here [loplugin:useuniqueptr]}}
XXX* m_pbar3; // expected-note {{member is here [loplugin:useuniqueptr]}}
XXX* m_pbar4; // expected-note {{member is here [loplugin:useuniqueptr]}}
~Foo9()
{
if (m_pbar1)
{
delete m_pbar1; // expected-error {{unconditional call to delete on a member, should be using std::unique_ptr [loplugin:useuniqueptr]}}
}
if (m_pbar2 != nullptr)
{
delete m_pbar2; // expected-error {{unconditional call to delete on a member, should be using std::unique_ptr [loplugin:useuniqueptr]}}
}
if (m_pbar3 != nullptr)
delete m_pbar3; // expected-error {{unconditional call to delete on a member, should be using std::unique_ptr [loplugin:useuniqueptr]}}
if (m_pbar4 != nullptr)
{
int x = 1;
(void)x;
delete m_pbar4; // expected-error {{unconditional call to delete on a member, should be using std::unique_ptr [loplugin:useuniqueptr]}}
}
}
};
// no warning expected
class Foo10 {
XXX* m_pbar1;
~Foo10()
{
if (m_pbar1 != getOther())
{
delete m_pbar1;
}
}
XXX* getOther() { return nullptr; }
};
class Foo11 {
std::vector<XXX*> m_pbar1; // expected-note {{member is here [loplugin:useuniqueptr]}}
~Foo11()
{
for (const auto & p : m_pbar1) // expected-note {{var is here [loplugin:useuniqueptr]}}
{
delete p; // expected-error {{rather manage this with std::some_container<std::unique_ptr<T>> [loplugin:useuniqueptr]}} expected-error {{call to delete on a var, should be using std::unique_ptr [loplugin:useuniqueptr]}}
}
}
};
class Foo12 {
std::array<int*,10> m_pbar; // expected-note {{member is here [loplugin:useuniqueptr]}}
~Foo12()
{
int i = 0;
while (i < 10)
delete m_pbar[i++]; // expected-error {{rather manage this member with std::some_container<std::unique_ptr<T>> [loplugin:useuniqueptr]}}
}
};
#define DELETEZ( p ) ( delete p,p = NULL )
class Foo13 {
int * m_pbar1; // expected-note {{member is here [loplugin:useuniqueptr]}}
int * m_pbar2; // expected-note {{member is here [loplugin:useuniqueptr]}}
int * m_pbar3; // expected-note {{member is here [loplugin:useuniqueptr]}}
~Foo13()
{
if (m_pbar1)
DELETEZ(m_pbar1); // expected-error {{unconditional call to delete on a member, should be using std::unique_ptr [loplugin:useuniqueptr]}}
DELETEZ(m_pbar2); // expected-error {{unconditional call to delete on a member, should be using std::unique_ptr [loplugin:useuniqueptr]}}
if (m_pbar3)
{
DELETEZ(m_pbar3); // expected-error {{unconditional call to delete on a member, should be using std::unique_ptr [loplugin:useuniqueptr]}}
}
}
};
// check for unconditional inner compound statements
class Foo14 {
int * m_pbar1; // expected-note {{member is here [loplugin:useuniqueptr]}}
~Foo14()
{
{
delete m_pbar1; // expected-error {{unconditional call to delete on a member, should be using std::unique_ptr [loplugin:useuniqueptr]}}
}
}
};
void Foo15(int * p)
{
delete p; // expected-error {{calling delete on a pointer param, should be either whitelisted or simplified [loplugin:useuniqueptr]}}
};
class Foo16 {
Foo16(int * p)
{
delete p; // expected-error {{calling delete on a pointer param, should be either whitelisted or simplified [loplugin:useuniqueptr]}}
};
void foo(int * p)
{
delete p; // expected-error {{calling delete on a pointer param, should be either whitelisted or simplified [loplugin:useuniqueptr]}}
};
};
// check for delete on array members
class Foo17 {
int * m_pbar1[6]; // expected-note {{member is here [loplugin:useuniqueptr]}}
~Foo17()
{
delete m_pbar1[0]; // expected-error {{unconditional call to delete on an array member, should be using std::unique_ptr [loplugin:useuniqueptr]}}
}
};
// this only starts to work somewhere after clang 3.8 and before clang7
class Foo18 {
std::vector<char*> m_pbar1; // expected-note {{member is here [loplugin:useuniqueptr]}}
~Foo18()
{
for (auto aIter = m_pbar1.begin(); aIter != m_pbar1.end(); ++aIter)
delete *aIter; // expected-error {{rather manage this member with std::some_container<std::unique_ptr<T>> [loplugin:useuniqueptr]}}
}
};
void foo19()
{
std::vector<char*> vec; // expected-note {{var is here [loplugin:useuniqueptr]}}
for(char * p : vec) // expected-note {{var is here [loplugin:useuniqueptr]}}
delete p; // expected-error {{rather manage this var with std::some_container<std::unique_ptr<T>> [loplugin:useuniqueptr]}} expected-error {{call to delete on a var, should be using std::unique_ptr [loplugin:useuniqueptr]}}
}
// no warning expected
namespace foo20
{
struct struct20_1 {};
struct struct20_2 : public struct20_1 {
char * p;
};
void foo20(struct20_1 * pMapping)
{
delete static_cast< struct20_2 * >( pMapping )->p;
}
};
// ------------------------------------------------------------------------------------------------
// tests for deleting when looping via iterators
// ------------------------------------------------------------------------------------------------
void foo21()
{
std::vector<bool*> vec; // expected-note {{var is here [loplugin:useuniqueptr]}}
for(auto it = vec.begin(); it != vec.end(); ++it)
delete *it; // expected-error {{rather manage this var with std::some_container<std::unique_ptr<T>> [loplugin:useuniqueptr]}}
}
void foo22()
{
std::unordered_map<int, float*> map; // expected-note {{var is here [loplugin:useuniqueptr]}}
for(auto it = map.begin(); it != map.end(); ++it)
delete it->second; // expected-error {{rather manage this var with std::some_container<std::unique_ptr<T>> [loplugin:useuniqueptr]}}
}
class Foo23
{
std::unordered_map<int, float*> map; // expected-note {{member is here [loplugin:useuniqueptr]}}
~Foo23()
{
for(auto it = map.begin(); it != map.end(); ++it)
delete it->second; // expected-error {{rather manage this member with std::some_container<std::unique_ptr<T>> [loplugin:useuniqueptr]}}
}
};
class Foo24
{
typedef std::vector<int*> HTMLAttrs;
HTMLAttrs m_aSetAttrTab; // expected-note {{member is here [loplugin:useuniqueptr]}}
~Foo24()
{
for ( HTMLAttrs::const_iterator it = m_aSetAttrTab.begin(); it != m_aSetAttrTab.end(); ++it )
delete *it; // expected-error {{rather manage this member with std::some_container<std::unique_ptr<T>> [loplugin:useuniqueptr]}}
}
};
// ------------------------------------------------------------------------------------------------
// tests for passing owning pointers to constructors
// ------------------------------------------------------------------------------------------------
class Bravo1
{
std::unique_ptr<int> m_field1;
Bravo1(int* p)
: m_field1(p) // expected-error {{should be passing via std::unique_ptr param [loplugin:useuniqueptr]}}
{}
};
class Bravo2
{
std::unique_ptr<int> m_field1;
Bravo2(std::unique_ptr<int> p)
: m_field1(std::move(p)) // no warning expected
{}
};
/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
|
