warn-implicit-self-in-block.mm
1.3 KB
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
// RUN: %clang_cc1 -x objective-c++ -std=c++11 -fobjc-arc -fblocks -Wimplicit-retain-self -verify %s
// rdar://11194874
typedef void (^BlockTy)();
void noescapeFunc(__attribute__((noescape)) BlockTy);
void escapeFunc(BlockTy);
@interface Root @end
@interface I : Root
{
int _bar;
}
@end
@implementation I
- (void)foo{
^{
_bar = 3; // expected-warning {{block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior}}
}();
}
- (void)testNested{
noescapeFunc(^{
(void)_bar;
escapeFunc(^{
(void)_bar; // expected-warning {{block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior}}
noescapeFunc(^{
(void)_bar; // expected-warning {{block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior}}
});
(void)_bar; // expected-warning {{block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior}}
});
(void)_bar;
});
}
- (void)testLambdaInBlock{
noescapeFunc(^{ [&](){ (void)_bar; }(); });
escapeFunc(^{ [&](){ (void)_bar; }(); }); // expected-warning {{block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior}}
}
@end