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
|
// RUN: %check_clang_tidy %s bugprone-no-escape %t -- -- -Wno-int-conversion
// RUN: %check_clang_tidy %s -assume-filename=bugprone-no-escape.c bugprone-no-escape %t -- -- -fblocks -Wno-int-conversion
typedef struct dispatch_queue_s *dispatch_queue_t;
typedef struct dispatch_time_s *dispatch_time_t;
typedef void (^dispatch_block_t)(void);
void dispatch_async(dispatch_queue_t queue, dispatch_block_t block);
void dispatch_after(dispatch_time_t when, dispatch_queue_t queue, dispatch_block_t block);
extern dispatch_queue_t queue;
void test_noescape_attribute(__attribute__((noescape)) int *p, int *q) {
dispatch_async(queue, ^{
*p = 123;
// CHECK-MESSAGES: :[[@LINE-2]]:25: warning: pointer 'p' with attribute 'noescape' is captured by an asynchronously-executed block [bugprone-no-escape]
// CHECK-MESSAGES: :[[@LINE-4]]:30: note: the 'noescape' attribute is declared here.
});
dispatch_after(456, queue, ^{
*p = 789;
// CHECK-MESSAGES: :[[@LINE-2]]:30: warning: pointer 'p' with attribute 'noescape' is captured by an asynchronously-executed block [bugprone-no-escape]
});
dispatch_async(queue, ^{
*q = 0;
// CHECK-MESSAGES-NOT: :[[@LINE-2]]:25: warning: pointer 'q' with attribute 'noescape' is captured by an asynchronously-executed block
});
}
|
