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Diffstat (limited to 'test/Analysis/method-call-path-notes.cpp')
-rw-r--r-- | test/Analysis/method-call-path-notes.cpp | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/test/Analysis/method-call-path-notes.cpp b/test/Analysis/method-call-path-notes.cpp new file mode 100644 index 0000000000..1e17b838cc --- /dev/null +++ b/test/Analysis/method-call-path-notes.cpp @@ -0,0 +1,36 @@ +// RUN: %clang_cc1 -analyze -analyzer-checker=core -analyzer-ipa=inlining -analyzer-output=text -verify %s + +// Test warning about null or uninitialized pointer values used as instance member +// calls. +class TestInstanceCall { +public: + void foo() {} +}; + +void test_ic() { + TestInstanceCall *p; // expected-note {{Variable 'p' declared without an initial value}} + p->foo(); // expected-warning {{Called C++ object pointer is uninitialized}} expected-note {{Called C++ object pointer is uninitialized}} +} + +void test_ic_null() { + TestInstanceCall *p = 0; // expected-note {{Variable 'p' initialized to a null pointer value}} + p->foo(); // expected-warning {{Called C++ object pointer is null}} expected-note {{Called C++ object pointer is null}} +} + +void test_ic_set_to_null() { + TestInstanceCall *p; + p = 0; // expected-note {{Null pointer value stored to 'p'}} + p->foo(); // expected-warning {{Called C++ object pointer is null}} expected-note {{Called C++ object pointer is null}} +} + +void test_ic_null(TestInstanceCall *p) { + if (!p) // expected-note {{Taking true branch}} + p->foo(); // expected-warning {{Called C++ object pointer is null}} expected-note{{Called C++ object pointer is null}} +} + +void test_ic_member_ptr() { + TestInstanceCall *p = 0; // expected-note {{Variable 'p' initialized to a null pointer value}} + typedef void (TestInstanceCall::*IC_Ptr)(); + IC_Ptr bar = &TestInstanceCall::foo; + (p->*bar)(); // expected-warning {{Called C++ object pointer is null}} expected-note{{Called C++ object pointer is null}} +} |