604e4adef0
This is a follow-up to #179674, which applies various fixes across C++ DR tests uncovered by `-verify-directives` (#179835 ). Changes here serve double duty. First, they fix actual problems found by `-verify-directives`, because I've been manually enforcing those rules manually for quite a while. Second, they show typical problems and possible solutions when you opt-in a test to use `-verify-directives`. This PR focuses on interesting cases, as partial diagnostic matches, which are trivial to fix, are fixed in boring #179674 Changes include: 1. Getting rid of instantiations at the end of TU that emit diagnostics: either trigger them earlier, or move them to a separate file 2. Reordering of `expected-error` and `expected-note` to match the order in which corresponding diagnsotics are emitted. 3. Eliminating leftover partial matches of diagnostic text 4. Removing some extension warnings, because C++ DR tests are not interested in features backported to older language modes. 5. Fix for a hilarious case of CWG413 test, which was checking for a note from a typo correction that happened in another test.
27 lines
1.5 KiB
C++
27 lines
1.5 KiB
C++
// RUN: %clang_cc1 -std=c++98 %s -fexceptions -fcxx-exceptions -pedantic-errors -verify
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// RUN: %clang_cc1 -std=c++11 %s -fexceptions -fcxx-exceptions -pedantic-errors -verify
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// RUN: %clang_cc1 -std=c++14 %s -fexceptions -fcxx-exceptions -pedantic-errors -verify
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// RUN: %clang_cc1 -std=c++17 %s -fexceptions -fcxx-exceptions -pedantic-errors -verify
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// RUN: %clang_cc1 -std=c++20 %s -fexceptions -fcxx-exceptions -pedantic-errors -verify
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// RUN: %clang_cc1 -std=c++23 %s -fexceptions -fcxx-exceptions -pedantic-errors -verify
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// RUN: %clang_cc1 -std=c++2c %s -fexceptions -fcxx-exceptions -pedantic-errors -verify
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namespace cwg390 { // cwg390: 3.3
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template<typename T>
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struct A {
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A() { f(); }
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// expected-warning@-1 {{call to pure virtual member function 'f' has undefined behavior; overrides of 'f' in subclasses are not available in the constructor of 'cwg390::A<int>'}}
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// expected-note@#cwg390-A-int {{in instantiation of member function 'cwg390::A<int>::A' requested here}}
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// expected-note@#cwg390-f {{'f' declared here}}
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virtual void f() = 0; // #cwg390-f
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virtual ~A() = 0;
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};
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template<typename T> A<T>::~A() { T::error; }
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// expected-error@-1 {{type 'int' cannot be used prior to '::' because it has no members}}
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// expected-note@#cwg390-A-int {{in instantiation of member function 'cwg390::A<int>::~A' requested here}}
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template<typename T> void A<T>::f() { T::error; } // ok, not odr-used
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struct B : A<int> { // #cwg390-A-int
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void f() {}
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} b;
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} // namespace cwg390
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