| Artem Dergachev | bbc6d68 | 2018-11-30 03:27:50 +0000 | [diff] [blame] | 1 | // RUN: %clang_analyze_cc1 -analyzer-checker=core,osx -analyzer-output=text -verify %s |
| 2 | |
| 3 | // expected-no-diagnostics |
| 4 | |
| 5 | typedef void *CFTypeRef; |
| 6 | typedef struct _CFURLCacheRef *CFURLCacheRef; |
| 7 | |
| 8 | CFTypeRef CustomCFRetain(CFTypeRef); |
| 9 | void invalidate(void *); |
| 10 | struct S1 { |
| 11 | CFTypeRef s; |
| 12 | CFTypeRef returnFieldAtPlus0() { |
| 13 | return s; |
| 14 | } |
| 15 | }; |
| 16 | struct S2 { |
| 17 | S1 *s1; |
| 18 | }; |
| 19 | void foo(S1 *s1) { |
| 20 | invalidate(s1); |
| 21 | S2 s2; |
| 22 | s2.s1 = s1; |
| 23 | CustomCFRetain(s1->returnFieldAtPlus0()); |
| 24 | |
| 25 | // Definitely no leak end-of-path note here. The retained pointer |
| 26 | // is still accessible through s1 and s2. |
| 27 | ((void) 0); // no-warning |
| 28 | |
| 29 | // FIXME: Ideally we need to warn after this invalidate(). The per-function |
| 30 | // retain-release contract is violated: the programmer should release |
| 31 | // the symbol after it was retained, within the same function. |
| 32 | invalidate(&s2); |
| 33 | } |