| Ted Kremenek | 033a07e | 2011-08-03 23:14:55 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -triple i386-apple-darwin8 -analyze -analyzer-checker=core,experimental.core -analyzer-constraints=range -analyzer-store=region -verify %s |
| Ted Kremenek | f9eb0ae | 2011-02-12 01:25:04 +0000 | [diff] [blame] | 2 | |
| 3 | // <rdar://problem/6888289> - This test case shows that a nil instance |
| 4 | // variable can possibly be initialized by a method. |
| 5 | typedef struct RDar6888289_data { |
| 6 | long data[100]; |
| 7 | } RDar6888289_data; |
| 8 | |
| 9 | @interface RDar6888289 |
| 10 | { |
| 11 | RDar6888289 *x; |
| 12 | } |
| 13 | - (RDar6888289_data) test; |
| 14 | - (RDar6888289_data) test2; |
| 15 | - (void) invalidate; |
| 16 | - (RDar6888289_data) getData; |
| 17 | @end |
| 18 | |
| 19 | @implementation RDar6888289 |
| 20 | - (RDar6888289_data) test { |
| 21 | if (!x) |
| 22 | [self invalidate]; |
| 23 | return [x getData]; |
| 24 | } |
| 25 | - (RDar6888289_data) test2 { |
| 26 | if (!x) {} |
| 27 | return [x getData]; // expected-warning{{The receiver of message 'getData' is nil and returns a value of type 'RDar6888289_data' that will be garbage}} |
| 28 | } |
| 29 | |
| 30 | - (void) invalidate { |
| 31 | x = self; |
| 32 | } |
| 33 | |
| 34 | - (RDar6888289_data) getData { |
| 35 | return (RDar6888289_data) { 0 }; |
| 36 | } |
| 37 | @end |
| 38 | |