Anna Zaks | bfa9ab8 | 2013-01-24 23:15:30 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -analyze -analyzer-checker=core,debug.ExprInspection -analyzer-config c++-inlining=constructors -verify %s |
Zhongxing Xu | 7ce351d | 2010-11-01 09:09:44 +0000 | [diff] [blame] | 2 | |
Jordy Rose | 43d9f0d | 2012-05-16 16:01:10 +0000 | [diff] [blame] | 3 | void clang_analyzer_eval(bool); |
| 4 | |
Jordan Rose | 7f66085 | 2012-08-15 21:56:23 +0000 | [diff] [blame] | 5 | |
Zhongxing Xu | 40ab43b | 2010-04-20 05:48:57 +0000 | [diff] [blame] | 6 | struct A { |
| 7 | int x; |
| 8 | A(int a) { x = a; } |
Zhongxing Xu | 3230302 | 2010-11-24 13:48:50 +0000 | [diff] [blame] | 9 | int getx() const { return x; } |
Zhongxing Xu | 40ab43b | 2010-04-20 05:48:57 +0000 | [diff] [blame] | 10 | }; |
| 11 | |
Anna Zaks | 3719ed2 | 2012-10-31 01:18:26 +0000 | [diff] [blame] | 12 | struct B{ |
| 13 | int x; |
| 14 | }; |
| 15 | |
Jordan Rose | 7f66085 | 2012-08-15 21:56:23 +0000 | [diff] [blame] | 16 | void testNullObject(A *a) { |
| 17 | clang_analyzer_eval(a); // expected-warning{{UNKNOWN}} |
| 18 | (void)a->getx(); // assume we know what we're doing |
| 19 | clang_analyzer_eval(a); // expected-warning{{TRUE}} |
| 20 | } |
| 21 | |
Zhongxing Xu | 40ab43b | 2010-04-20 05:48:57 +0000 | [diff] [blame] | 22 | void f1() { |
| 23 | A x(3); |
Jordan Rose | c210cb7 | 2012-08-27 17:50:07 +0000 | [diff] [blame] | 24 | clang_analyzer_eval(x.getx() == 3); // expected-warning{{TRUE}} |
Zhongxing Xu | 40ab43b | 2010-04-20 05:48:57 +0000 | [diff] [blame] | 25 | } |
| 26 | |
Zhongxing Xu | 0e38d5d | 2010-11-25 03:18:57 +0000 | [diff] [blame] | 27 | void f2() { |
| 28 | const A &x = A(3); |
Jordan Rose | c210cb7 | 2012-08-27 17:50:07 +0000 | [diff] [blame] | 29 | clang_analyzer_eval(x.getx() == 3); // expected-warning{{TRUE}} |
Zhongxing Xu | 0e38d5d | 2010-11-25 03:18:57 +0000 | [diff] [blame] | 30 | } |
| 31 | |
Argyrios Kyrtzidis | b76fdf6 | 2011-02-19 01:08:37 +0000 | [diff] [blame] | 32 | void f3() { |
| 33 | const A &x = (A)3; |
Jordan Rose | c210cb7 | 2012-08-27 17:50:07 +0000 | [diff] [blame] | 34 | clang_analyzer_eval(x.getx() == 3); // expected-warning{{TRUE}} |
| 35 | } |
| 36 | |
| 37 | void f4() { |
| 38 | A x = 3; |
| 39 | clang_analyzer_eval(x.getx() == 3); // expected-warning{{TRUE}} |
Argyrios Kyrtzidis | b76fdf6 | 2011-02-19 01:08:37 +0000 | [diff] [blame] | 40 | } |
Anna Zaks | 3719ed2 | 2012-10-31 01:18:26 +0000 | [diff] [blame] | 41 | |
| 42 | void checkThatCopyConstructorDoesNotInvalidateObjectBeingCopied() { |
| 43 | B t; |
| 44 | t.x = 0; |
| 45 | B t2(t); |
| 46 | clang_analyzer_eval(t.x == 0); // expected-warning{{TRUE}} |
| 47 | } |