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74f02347ca
Under this defect resolution, the injected-class-name of a class or class template cannot be used except in very limited circumstances (when declaring a constructor, in a nested-name-specifier, in a base-specifier, or in an elaborated-type-specifier). This is apparently done to make parsing easier, but it's a pain for us since we don't know whether a template-id using the injected-class-name is valid at the point when we annotate it (we don't yet know whether the template-id will become part of an elaborated-type-specifier). As a tentative resolution to a perceived language defect, mem-initializer-ids are added to the list of exceptions here (they generally follow the same rules as base-specifiers). When the reference to the injected-class-name uses the 'typename' or 'template' keywords, we permit it to be used to name a type or template as an extension; other compilers also accept some cases in this area. There are also a couple of corner cases with dependent template names that we do not yet diagnose, but which will also get this treatment. llvm-svn: 292518
72 lines
1.6 KiB
C++
72 lines
1.6 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
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template<typename T>
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struct X {
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X<T*> *ptr;
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};
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X<int> x;
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template<>
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struct X<int***> {
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typedef X<int***> *ptr;
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};
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X<float>::X<int> xi = x; // expected-error{{qualified reference to 'X' is a constructor name rather than a template name}}
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void f() {
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X<float>::X<int> xi = x; // expected-error{{qualified reference to 'X' is a constructor name rather than a template name}}
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}
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// [temp.local]p1:
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// FIXME: test template template parameters
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template<typename T, typename U>
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struct X0 {
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typedef T type;
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typedef U U_type;
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typedef U_type U_type2;
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void f0(const X0&); // expected-note{{here}}
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void f0(X0&);
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void f0(const X0<T, U>&); // expected-error{{redecl}}
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void f1(const X0&); // expected-note{{here}}
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void f1(X0&);
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void f1(const X0<type, U_type2>&); // expected-error{{redecl}}
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void f2(const X0&); // expected-note{{here}}
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void f2(X0&);
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void f2(const ::X0<type, U_type2>&); // expected-error{{redecl}}
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};
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template<typename T, T N>
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struct X1 {
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void f0(const X1&); // expected-note{{here}}
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void f0(X1&);
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void f0(const X1<T, N>&); // expected-error{{redecl}}
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};
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namespace pr6326 {
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template <class T> class A {
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friend class A;
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};
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template class A<int>;
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}
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namespace ForwardDecls {
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template<typename T>
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struct X;
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template<typename T>
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struct X {
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typedef T foo;
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typedef X<T> xt;
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typename xt::foo *t;
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};
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}
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namespace ConflictingRedecl {
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template<typename> struct Nested {
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template<typename> struct Nested; // expected-error {{member 'Nested' has the same name as its class}}
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};
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}
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