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
|
// RUN: %clang_cc1 -std=c++20 -Wunsafe-buffer-usage \
// RUN: -fsafe-buffer-usage-suggestions \
// RUN: -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
void lhs_span_multi_assign() {
int *a = new int[2];
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:3-[[@LINE-1]]:8}:"std::span<int> "
// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:12-[[@LINE-2]]:12}:"{"
// CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:22-[[@LINE-3]]:22}:", 2}"
int *b = a;
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:3-[[@LINE-1]]:8}:"std::span<int> "
// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:12-[[@LINE-2]]:12}:"{"
// CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:13-[[@LINE-3]]:13}:", <# placeholder #>}"
int *c = b;
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:3-[[@LINE-1]]:8}:"std::span<int> "
// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:12-[[@LINE-2]]:12}:"{"
// CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:13-[[@LINE-3]]:13}:", <# placeholder #>}"
int *d = c;
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:3-[[@LINE-1]]:8}:"std::span<int> "
// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:12-[[@LINE-2]]:12}:"{"
// CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:13-[[@LINE-3]]:13}:", <# placeholder #>}"
int tmp = d[2]; // expected-note{{used in buffer access here}}
}
void rhs_span1() {
int *q = new int[12];
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:3-[[@LINE-1]]:8}:"std::span<int> "
// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:12-[[@LINE-2]]:12}:"{"
// CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:23-[[@LINE-3]]:23}:", 12}"
int *p = q;
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:3-[[@LINE-1]]:8}:"std::span<int> "
// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:12-[[@LINE-2]]:12}:"{"
// CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:13-[[@LINE-3]]:13}:", <# placeholder #>}"
p[5] = 10;
int *r = q;
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:3-[[@LINE-1]]:8}:"std::span<int> "
// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:12-[[@LINE-2]]:12}:"{"
// CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:13-[[@LINE-3]]:13}:", <# placeholder #>}"
r[10] = 5;
}
void rhs_span2() {
int *q = new int[6];
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:3-[[@LINE-1]]:8}:"std::span<int> "
// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:12-[[@LINE-2]]:12}:"{"
// CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:22-[[@LINE-3]]:22}:", 6}"
int *p = q;
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:3-[[@LINE-1]]:8}:"std::span<int> "
// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:12-[[@LINE-2]]:12}:"{"
// CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:13-[[@LINE-3]]:13}:", <# placeholder #>}"
p[5] = 10;
}
void rhs_span3() {
int *q = new int[6];
int *p = q;
p[5] = 10;
int *r = q;
}
void test_grouping() {
int *z = new int[8];
int tmp;
int *y = new int[10];
// CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-1]]:
tmp = y[5];
int *x = new int[10];
x = y; // FIXME: we do not fix `x = y` here as the `.data()` fix-it is not generally correct
int *w = z;
}
void test_crash() {
int *r = new int[8];
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:3-[[@LINE-1]]:8}:"std::span<int> "
// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:12-[[@LINE-2]]:12}:"{"
// CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:22-[[@LINE-3]]:22}:", 8}"
int *q = r;
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:3-[[@LINE-1]]:8}:"std::span<int> "
// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:12-[[@LINE-2]]:12}:"{"
// CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:13-[[@LINE-3]]:13}:", <# placeholder #>}"
int *p;
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:3-[[@LINE-1]]:8}:"std::span<int> "
p = q;
int tmp = p[9];
}
|
