initializer.cpp revision 07c52d2813a6b5e4025276d3687bd25f75fd51b9 
1// RUN: %clang_cc1 -analyze -analyzer-checker=core,unix.Malloc,debug.ExprInspection -analyzer-config c++-inlining=constructors -std=c++11 -verify %s
2
3void clang_analyzer_eval(bool);
4
5class A {
6  int x;
7public:
8  A();
9};
10
11A::A() : x(0) {
12  clang_analyzer_eval(x == 0); // expected-warning{{TRUE}}
13}
14
15
16class DirectMember {
17  int x;
18public:
19  DirectMember(int value) : x(value) {}
20
21  int getX() { return x; }
22};
23
24void testDirectMember() {
25  DirectMember obj(3);
26  clang_analyzer_eval(obj.getX() == 3); // expected-warning{{TRUE}}
27}
28
29
30class IndirectMember {
31  struct {
32    int x;
33  };
34public:
35  IndirectMember(int value) : x(value) {}
36
37  int getX() { return x; }
38};
39
40void testIndirectMember() {
41  IndirectMember obj(3);
42  clang_analyzer_eval(obj.getX() == 3); // expected-warning{{TRUE}}
43}
44
45
46struct DelegatingConstructor {
47  int x;
48  DelegatingConstructor(int y) { x = y; }
49  DelegatingConstructor() : DelegatingConstructor(42) {}
50};
51
52void testDelegatingConstructor() {
53  DelegatingConstructor obj;
54  clang_analyzer_eval(obj.x == 42); // expected-warning{{TRUE}}
55}
56
57
58struct RefWrapper {
59  RefWrapper(int *p) : x(*p) {}
60  RefWrapper(int &r) : x(r) {}
61  int &x;
62};
63
64void testReferenceMember() {
65  int *p = 0;
66  RefWrapper X(p); // expected-warning@-7 {{Dereference of null pointer}}
67}
68
69void testReferenceMember2() {
70  int *p = 0;
71  // FIXME: We should warn here, since we're creating the reference here.
72  RefWrapper X(*p); // expected-warning@-12 {{Dereference of null pointer}}
73}
74
75
76extern "C" char *strdup(const char *);
77
78class StringWrapper {
79  char *str;
80public:
81  StringWrapper(const char *input) : str(strdup(input)) {} // no-warning
82};
83
84
85// PR15070 - Constructing a type containing a non-POD array mistakenly
86// tried to perform a bind instead of relying on the CXXConstructExpr,
87// which caused a cast<> failure in RegionStore.
88namespace DefaultConstructorWithCleanups {
89  class Element {
90  public:
91    int value;
92
93    class Helper {
94    public:
95      ~Helper();
96    };
97    Element(Helper h = Helper());
98  };
99  class Wrapper {
100  public:
101    Element arr[2];
102
103    Wrapper();
104  };
105
106  Wrapper::Wrapper() /* initializers synthesized */ {}
107
108  int test() {
109    Wrapper w;
110    return w.arr[0].value; // no-warning
111  }
112}
113