| 1 | // RUN: %clang_analyze_cc1 -analyzer-checker=core,osx -analyzer-output=text -verify %s |
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| 2 | |
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| 3 | // expected-no-diagnostics |
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| 4 | |
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| 5 | typedef void *CFTypeRef; |
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| 6 | typedef struct _CFURLCacheRef *CFURLCacheRef; |
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| 7 | |
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| 8 | CFTypeRef CustomCFRetain(CFTypeRef); |
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| 9 | void invalidate(void *); |
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| 10 | struct S1 { |
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| 11 | CFTypeRef s; |
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| 12 | CFTypeRef returnFieldAtPlus0() { |
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| 13 | return s; |
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| 14 | } |
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| 15 | }; |
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| 16 | struct S2 { |
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| 17 | S1 *s1; |
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| 18 | }; |
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| 19 | void foo(S1 *s1) { |
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| 20 | invalidate(s1); |
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| 21 | S2 s2; |
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| 22 | s2.s1 = s1; |
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| 23 | CustomCFRetain(s1->returnFieldAtPlus0()); |
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| 24 | |
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| 25 | // Definitely no leak end-of-path note here. The retained pointer |
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| 26 | // is still accessible through s1 and s2. |
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| 27 | ((void) 0); // no-warning |
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| 28 | |
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| 29 | // FIXME: Ideally we need to warn after this invalidate(). The per-function |
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| 30 | // retain-release contract is violated: the programmer should release |
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| 31 | // the symbol after it was retained, within the same function. |
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| 32 | invalidate(&s2); |
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| 33 | } |
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| 34 | |
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