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...rather than on potentially just a declaration. Without the fix, the newly added clang/test/SemaCXX/warn-undefined-internal.cpp failed with > error: 'warning' diagnostics expected but not seen: > File /home/sbergman/github.com/llvm/llvm-project/clang/test/SemaCXX/warn-undefined-internal.cpp Line 12 (directive at /home/sbergman/github.com/llvm/llvm-project/clang/test/SemaCXX/warn-undefined-internal.cpp:13): function 'test2()::S::f' has internal linkage but is not defined > error: 'note' diagnostics expected but not seen: > File /home/sbergman/github.com/llvm/llvm-project/clang/test/SemaCXX/warn-undefined-internal.cpp Line 14 (directive at /home/sbergman/github.com/llvm/llvm-project/clang/test/SemaCXX/warn-undefined-internal.cpp:15): used here (I ran into this when two LibreOffice Clang plugins produced false positive warnings, as they relied on Decl::isReferenced() returning true for such virtual member functions of local classes.) Differential Revision: https://reviews.llvm.org/D145123
17 lines
451 B
C++
17 lines
451 B
C++
// RUN: %clang_cc1 -fsyntax-only -Wundefined-internal -verify %s
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void test1() {
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struct S { virtual void f(); };
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// expected-warning@-1{{function 'test1()::S::f' has internal linkage but is not defined}}
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S s;
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// expected-note@-1{{used here}}
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}
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void test2() {
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struct S;
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struct S { virtual void f(); };
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// expected-warning@-1{{function 'test2()::S::f' has internal linkage but is not defined}}
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S s;
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// expected-note@-1{{used here}}
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}
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