37 lines
1.6 KiB
C++
37 lines
1.6 KiB
C++
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// 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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// 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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// RUN: %normalize_plist <%t.plist | diff -ub %S/Inputs/expected-plists/eager-reclamation-path-notes.cpp.plist -
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struct IntWrapper {
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int getValue();
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};
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IntWrapper *getNullWrapper() {
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return 0;
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// expected-note@-1 {{Returning null pointer}}
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}
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int memberCallBaseDisappears() {
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// In this case, we need the lvalue-to-rvalue cast for 'ptr' to disappear,
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// which means we need to trigger reclamation between that and the ->
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// operator.
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//
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// Note that this test is EXTREMELY brittle because it's a negative test:
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// we want to show that even if the node for the rvalue of 'ptr' disappears,
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// we get the same results as if it doesn't. The test should never fail even
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// if our node reclamation policy changes, but it could easily not be testing
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// anything at that point.
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IntWrapper *ptr = getNullWrapper();
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// expected-note@-1 {{Calling 'getNullWrapper'}}
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// expected-note@-2 {{Returning from 'getNullWrapper'}}
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// expected-note@-3 {{'ptr' initialized to a null pointer value}}
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// Burn some nodes to trigger reclamation.
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int unused = 1;
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(void)unused;
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return ptr->getValue(); // expected-warning {{Called C++ object pointer is null}}
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// expected-note@-1 {{Called C++ object pointer is null}}
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}
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