forked from OSchip/llvm-project
62 lines
3.3 KiB
C++
62 lines
3.3 KiB
C++
// RUN: %clang_cc1 -verify %s -std=c++20
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// We avoid printing the name of an inline namespace unless it's necessary to
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// uniquely identify the target.
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namespace N {
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inline namespace A {
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inline namespace B {
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inline namespace C {
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int f, g, h, i, j;
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struct f; struct g; struct h; struct i; struct j;
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}
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struct g;
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struct j;
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}
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struct h;
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}
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struct i;
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struct j;
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template<int*> struct Q; // expected-note 5{{here}}
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Q<&A::B::C::f> q1; // expected-error {{implicit instantiation of undefined template 'N::Q<&N::f>'}}
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Q<&A::B::C::g> q2; // expected-error {{implicit instantiation of undefined template 'N::Q<&N::C::g>'}}
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Q<&A::B::C::h> q3; // expected-error {{implicit instantiation of undefined template 'N::Q<&N::B::h>'}}
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Q<&A::B::C::i> q4; // expected-error {{implicit instantiation of undefined template 'N::Q<&N::A::i>'}}
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Q<&A::B::C::j> q5; // expected-error {{implicit instantiation of undefined template 'N::Q<&N::C::j>'}}
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template<typename> struct R; // expected-note 5{{here}}
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R<struct A::B::C::f> r1; // expected-error {{implicit instantiation of undefined template 'N::R<N::f>'}}
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R<struct A::B::C::g> r2; // expected-error {{implicit instantiation of undefined template 'N::R<N::C::g>'}}
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R<struct A::B::C::h> r3; // expected-error {{implicit instantiation of undefined template 'N::R<N::B::h>'}}
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R<struct A::B::C::i> r4; // expected-error {{implicit instantiation of undefined template 'N::R<N::A::i>'}}
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R<struct A::B::C::j> r5; // expected-error {{implicit instantiation of undefined template 'N::R<N::C::j>'}}
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// Make the name N::C ambiguous.
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inline namespace A { int C; }
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template<int*> struct S; // expected-note 5{{here}}
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S<&A::B::C::f> s1; // expected-error {{implicit instantiation of undefined template 'N::S<&N::f>'}}
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S<&A::B::C::g> s2; // expected-error {{implicit instantiation of undefined template 'N::S<&N::B::C::g>'}}
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S<&A::B::C::h> s3; // expected-error {{implicit instantiation of undefined template 'N::S<&N::B::h>'}}
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S<&A::B::C::i> s4; // expected-error {{implicit instantiation of undefined template 'N::S<&N::A::i>'}}
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S<&A::B::C::j> s5; // expected-error {{implicit instantiation of undefined template 'N::S<&N::B::C::j>'}}
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template<typename> struct T; // expected-note 5{{here}}
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T<struct A::B::C::f> t1; // expected-error {{implicit instantiation of undefined template 'N::T<N::f>'}}
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T<struct A::B::C::g> t2; // expected-error {{implicit instantiation of undefined template 'N::T<N::B::C::g>'}}
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T<struct A::B::C::h> t3; // expected-error {{implicit instantiation of undefined template 'N::T<N::B::h>'}}
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T<struct A::B::C::i> t4; // expected-error {{implicit instantiation of undefined template 'N::T<N::A::i>'}}
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T<struct A::B::C::j> t5; // expected-error {{implicit instantiation of undefined template 'N::T<N::B::C::j>'}}
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}
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namespace dont_crash {
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// A malformed lookup involving inline namespaces in a linkage specification
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// would previous cause an assertion due to the way diagnostics are emitted.
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extern "C++" inline namespace {
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namespace a {
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a : b // expected-error {{unexpected ':' in nested name specifier; did you mean '::'?}} \
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// expected-error {{no type named 'b' in namespace 'dont_crash::a'}}
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} // expected-error {{expected unqualified-id}}
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} // inline namespace
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} // dont_crash
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