xref: /aosp_15_r20/external/clang/test/Analysis/method-call.cpp (revision 67e74705e28f6214e480b399dd47ea732279e315)
1*67e74705SXin Li // RUN: %clang_cc1 -analyze -analyzer-checker=core,debug.ExprInspection -analyzer-config c++-inlining=constructors -verify %s
2*67e74705SXin Li 
3*67e74705SXin Li void clang_analyzer_eval(bool);
4*67e74705SXin Li 
5*67e74705SXin Li 
6*67e74705SXin Li struct A {
7*67e74705SXin Li   int x;
AA8*67e74705SXin Li   A(int a) { x = a; }
getxA9*67e74705SXin Li   int getx() const { return x; }
10*67e74705SXin Li };
11*67e74705SXin Li 
12*67e74705SXin Li struct B{
13*67e74705SXin Li   int x;
14*67e74705SXin Li };
15*67e74705SXin Li 
testNullObject(A * a)16*67e74705SXin Li void testNullObject(A *a) {
17*67e74705SXin Li   clang_analyzer_eval(a); // expected-warning{{UNKNOWN}}
18*67e74705SXin Li   (void)a->getx(); // assume we know what we're doing
19*67e74705SXin Li   clang_analyzer_eval(a); // expected-warning{{TRUE}}
20*67e74705SXin Li }
21*67e74705SXin Li 
f1()22*67e74705SXin Li void f1() {
23*67e74705SXin Li   A x(3);
24*67e74705SXin Li   clang_analyzer_eval(x.getx() == 3); // expected-warning{{TRUE}}
25*67e74705SXin Li }
26*67e74705SXin Li 
f2()27*67e74705SXin Li void f2() {
28*67e74705SXin Li   const A &x = A(3);
29*67e74705SXin Li   clang_analyzer_eval(x.getx() == 3); // expected-warning{{TRUE}}
30*67e74705SXin Li }
31*67e74705SXin Li 
f3()32*67e74705SXin Li void f3() {
33*67e74705SXin Li   const A &x = (A)3;
34*67e74705SXin Li   clang_analyzer_eval(x.getx() == 3); // expected-warning{{TRUE}}
35*67e74705SXin Li }
36*67e74705SXin Li 
f4()37*67e74705SXin Li void f4() {
38*67e74705SXin Li   A x = 3;
39*67e74705SXin Li   clang_analyzer_eval(x.getx() == 3); // expected-warning{{TRUE}}
40*67e74705SXin Li }
41*67e74705SXin Li 
checkThatCopyConstructorDoesNotInvalidateObjectBeingCopied()42*67e74705SXin Li void checkThatCopyConstructorDoesNotInvalidateObjectBeingCopied() {
43*67e74705SXin Li   B t;
44*67e74705SXin Li   t.x = 0;
45*67e74705SXin Li   B t2(t);
46*67e74705SXin Li   clang_analyzer_eval(t.x == 0); // expected-warning{{TRUE}}
47*67e74705SXin Li }
48