| 1 | // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -verify %s |
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| 2 | // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist-multi-file %s -o %t.plist |
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| 3 | // RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/method-call-path-notes.cpp.plist - |
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| 4 | |
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| 5 | // Test warning about null or uninitialized pointer values used as instance member |
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| 6 | // calls. |
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| 7 | class TestInstanceCall { |
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| 8 | public: |
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| 9 | void foo() {} |
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| 10 | }; |
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| 11 | |
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| 12 | void test_ic() { |
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| 13 | TestInstanceCall *p; // expected-note {{'p' declared without an initial value}} |
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| 14 | p->foo(); // expected-warning {{Called C++ object pointer is uninitialized}} expected-note {{Called C++ object pointer is uninitialized}} |
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| 15 | } |
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| 16 | |
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| 17 | void test_ic_null() { |
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| 18 | TestInstanceCall *p = 0; // expected-note {{'p' initialized to a null pointer value}} |
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| 19 | p->foo(); // expected-warning {{Called C++ object pointer is null}} expected-note {{Called C++ object pointer is null}} |
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| 20 | } |
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| 21 | |
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| 22 | void test_ic_set_to_null() { |
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| 23 | TestInstanceCall *p; |
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| 24 | p = 0; // expected-note {{Null pointer value stored to 'p'}} |
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| 25 | p->foo(); // expected-warning {{Called C++ object pointer is null}} expected-note {{Called C++ object pointer is null}} |
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| 26 | } |
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| 27 | |
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| 28 | void test_ic_null(TestInstanceCall *p) { |
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| 29 | if (!p) // expected-note {{Assuming 'p' is null}} expected-note {{Taking true branch}} |
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| 30 | p->foo(); // expected-warning {{Called C++ object pointer is null}} expected-note{{Called C++ object pointer is null}} |
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| 31 | } |
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| 32 | |
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| 33 | void test_ic_member_ptr() { |
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| 34 | TestInstanceCall *p = 0; // expected-note {{'p' initialized to a null pointer value}} |
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| 35 | typedef void (TestInstanceCall::*IC_Ptr)(); |
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| 36 | IC_Ptr bar = &TestInstanceCall::foo; |
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| 37 | (p->*bar)(); // expected-warning {{Called C++ object pointer is null}} expected-note{{Called C++ object pointer is null}} |
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| 38 | } |
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| 39 | |
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| 40 | void test_cast(const TestInstanceCall *p) { |
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| 41 | if (!p) // expected-note {{Assuming 'p' is null}} expected-note {{Taking true branch}} |
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| 42 | const_cast<TestInstanceCall *>(p)->foo(); // expected-warning {{Called C++ object pointer is null}} expected-note {{Called C++ object pointer is null}} |
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| 43 | } |
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| 44 | |
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| 45 | |
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