forked from OSchip/llvm-project
45 lines
2.0 KiB
C++
45 lines
2.0 KiB
C++
// RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -verify %s
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// RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist-multi-file %s -o %t.plist
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// RUN: %normalize_plist <%t.plist | diff -ub %S/Inputs/expected-plists/method-call-path-notes.cpp.plist -
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// Test warning about null or uninitialized pointer values used as instance member
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// calls.
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class TestInstanceCall {
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public:
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void foo() {}
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};
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void test_ic() {
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TestInstanceCall *p; // expected-note {{'p' declared without an initial value}}
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p->foo(); // expected-warning {{Called C++ object pointer is uninitialized}} expected-note {{Called C++ object pointer is uninitialized}}
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}
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void test_ic_null() {
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TestInstanceCall *p = 0; // expected-note {{'p' initialized to a null pointer value}}
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p->foo(); // expected-warning {{Called C++ object pointer is null}} expected-note {{Called C++ object pointer is null}}
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}
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void test_ic_set_to_null() {
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TestInstanceCall *p;
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p = 0; // expected-note {{Null pointer value stored to 'p'}}
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p->foo(); // expected-warning {{Called C++ object pointer is null}} expected-note {{Called C++ object pointer is null}}
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}
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void test_ic_null(TestInstanceCall *p) {
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if (!p) // expected-note {{Assuming 'p' is null}} expected-note {{Taking true branch}}
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p->foo(); // expected-warning {{Called C++ object pointer is null}} expected-note{{Called C++ object pointer is null}}
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}
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void test_ic_member_ptr() {
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TestInstanceCall *p = 0; // expected-note {{'p' initialized to a null pointer value}}
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typedef void (TestInstanceCall::*IC_Ptr)();
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IC_Ptr bar = &TestInstanceCall::foo;
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(p->*bar)(); // expected-warning {{Called C++ object pointer is null}} expected-note{{Called C++ object pointer is null}}
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}
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void test_cast(const TestInstanceCall *p) {
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if (!p) // expected-note {{Assuming 'p' is null}} expected-note {{Taking true branch}}
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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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}
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