| 1 | // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -analyzer-config graph-trim-interval=5 -analyzer-config suppress-null-return-paths=false -verify %s |
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| 2 | // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist-multi-file -analyzer-config graph-trim-interval=5 -analyzer-config suppress-null-return-paths=false %s -o %t.plist |
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| 3 | // RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/eager-reclamation-path-notes.cpp.plist - |
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| 4 | |
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| 5 | typedef struct { |
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| 6 | int getValue(); |
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| 7 | } IntWrapper; |
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| 8 | |
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| 9 | IntWrapper *getNullWrapper() { |
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| 10 | return 0; |
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| 11 | // expected-note@-1 {{Returning null pointer}} |
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| 12 | } |
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| 13 | |
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| 14 | int memberCallBaseDisappears() { |
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| 15 | // In this case, we need the lvalue-to-rvalue cast for 'ptr' to disappear, |
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| 16 | // which means we need to trigger reclamation between that and the -> |
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| 17 | // operator. |
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| 18 | // |
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| 19 | // Note that this test is EXTREMELY brittle because it's a negative test: |
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| 20 | // we want to show that even if the node for the rvalue of 'ptr' disappears, |
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| 21 | // we get the same results as if it doesn't. The test should never fail even |
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| 22 | // if our node reclamation policy changes, but it could easily not be testing |
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| 23 | // anything at that point. |
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| 24 | IntWrapper *ptr = getNullWrapper(); |
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| 25 | // expected-note@-1 {{Calling 'getNullWrapper'}} |
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| 26 | // expected-note@-2 {{Returning from 'getNullWrapper'}} |
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| 27 | // expected-note@-3 {{'ptr' initialized to a null pointer value}} |
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| 28 | |
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| 29 | // Burn some nodes to trigger reclamation. |
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| 30 | int unused = 1; |
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| 31 | (void)unused; |
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| 32 | |
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| 33 | return ptr->getValue(); // expected-warning {{Called C++ object pointer is null}} |
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| 34 | // expected-note@-1 {{Called C++ object pointer is null}} |
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| 35 | } |
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| 36 | |
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| 37 | |
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