blob: d43c8cfd9a0a98611b97fd9606c3018c0b811703 (
plain)
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
|
// RUN: %clang_cc1 -analyze -analyzer-checker=core,debug.ExprInspection -analyzer-store region -cfg-add-implicit-dtors -std=c++11 -verify %s
// We don't inline constructors unless we have destructors turned on.
void clang_analyzer_eval(bool);
class A {
int x;
public:
A();
};
A::A() : x(0) {
clang_analyzer_eval(x == 0); // expected-warning{{TRUE}}
}
class DirectMember {
int x;
public:
DirectMember(int value) : x(value) {}
int getX() { return x; }
};
void testDirectMember() {
DirectMember obj(3);
clang_analyzer_eval(obj.getX() == 3); // expected-warning{{TRUE}}
}
class IndirectMember {
struct {
int x;
};
public:
IndirectMember(int value) : x(value) {}
int getX() { return x; }
};
void testIndirectMember() {
IndirectMember obj(3);
clang_analyzer_eval(obj.getX() == 3); // expected-warning{{TRUE}}
}
struct DelegatingConstructor {
int x;
DelegatingConstructor(int y) { x = y; }
DelegatingConstructor() : DelegatingConstructor(42) {}
};
void testDelegatingConstructor() {
DelegatingConstructor obj;
clang_analyzer_eval(obj.x == 42); // expected-warning{{TRUE}}
}
// ------------------------------------
// False negatives
// ------------------------------------
struct RefWrapper {
RefWrapper(int *p) : x(*p) {}
RefWrapper(int &r) : x(r) {}
int &x;
};
void testReferenceMember() {
int *p = 0;
RefWrapper X(p); // should warn in the constructor
}
void testReferenceMember2() {
int *p = 0;
RefWrapper X(*p); // should warn here
}
|
