243 lines
7.7 KiB
C++
243 lines
7.7 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s -Wno-unused
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// RUN: %clang_cc1 -fsyntax-only -verify %s -Wno-unused -fms-compatibility -DMSVC
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namespace N {
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struct A {
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typedef int type;
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};
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struct B {
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};
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struct C {
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struct type { };
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int type; // expected-note 2{{referenced member 'type' is declared here}}
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};
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}
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int i;
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typename N::A::type *ip1 = &i; // expected-warning{{'typename' occurs outside of a template}}
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typename N::B::type *ip2 = &i; // expected-error{{no type named 'type' in 'N::B'}} \
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// expected-warning{{'typename' occurs outside of a template}}
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typename N::C::type *ip3 = &i; // expected-error{{typename specifier refers to non-type member 'type'}} \
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// expected-warning{{'typename' occurs outside of a template}}
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void test(double d) {
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typename N::A::type f(typename N::A::type(a)); // expected-warning{{disambiguated as a function declaration}} \
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// expected-note{{add a pair of parentheses}} expected-warning 2{{'typename' occurs outside of a template}}
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int five = f(5);
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using namespace N;
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for (typename A::type i = 0; i < 10; ++i) // expected-warning{{'typename' occurs outside of a template}}
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five += 1;
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const typename N::A::type f2(d); // expected-warning{{'typename' occurs outside of a template}}
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}
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namespace N {
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template<typename T>
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struct X {
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typedef typename T::type type; // expected-error {{no type named 'type' in 'N::B'}} \
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// expected-error {{no type named 'type' in 'B'}} \
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// FIXME: location info for error above isn't very good \
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// expected-error 2{{typename specifier refers to non-type member 'type'}} \
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// expected-error{{type 'int' cannot be used prior to '::' because it has no members}}
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};
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}
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N::X<N::A>::type *ip4 = &i;
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N::X<N::B>::type *ip5 = &i; // expected-note{{in instantiation of template class 'N::X<N::B>' requested here}}
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N::X<N::C>::type *ip6 = &i; // expected-note{{in instantiation of template class 'N::X<N::C>' requested here}}
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N::X<int>::type fail1; // expected-note{{in instantiation of template class 'N::X<int>' requested here}}
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template<typename T>
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struct Y {
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typedef typename N::X<T>::type *type; // expected-note{{in instantiation of template class 'N::X<B>' requested here}} \
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// expected-note{{in instantiation of template class 'N::X<C>' requested here}}
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};
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struct A {
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typedef int type;
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};
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struct B {
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};
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struct C {
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struct type { };
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int type; // expected-note{{referenced member 'type' is declared here}}
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};
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::Y<A>::type ip7 = &i;
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::Y<B>::type ip8 = &i; // expected-note{{in instantiation of template class 'Y<B>' requested here}}
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::Y<C>::type ip9 = &i; // expected-note{{in instantiation of template class 'Y<C>' requested here}}
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template<typename T> struct D {
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typedef typename T::foo foo; // expected-error {{type 'long' cannot be used prior to '::' because it has no members}}
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typedef typename foo::bar bar;
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};
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D<long> struct_D; // expected-note {{in instantiation of template class 'D<long>' requested here}}
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template<typename T> struct E {
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typedef typename T::foo foo;
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typedef typename foo::bar bar; // expected-error {{type 'foo' (aka 'double') cannot be used prior to '::' because it has no members}}
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};
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struct F {
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typedef double foo;
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};
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E<F> struct_E; // expected-note {{in instantiation of template class 'E<F>' requested here}}
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template<typename T> struct G {
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typedef typename T::foo foo;
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typedef typename foo::bar bar;
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};
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struct H {
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struct foo {
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typedef double bar;
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};
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};
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G<H> struct_G;
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namespace PR10925 {
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template< int mydim, typename Traits >
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class BasicGeometry
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{
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typedef int some_type_t;
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};
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template<class ctype, int mydim, int coorddim>
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class MockGeometry : BasicGeometry<mydim, int>{
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using typename BasicGeometry<mydim, int>::operator[]; // expected-error {{typename is allowed for identifiers only}}
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};
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}
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namespace missing_typename {
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template <class T1, class T2> struct pair {}; // expected-note 7 {{template parameter is declared here}}
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template <class T1, class T2>
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struct map {
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typedef T1* iterator;
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};
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template <class T>
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class ExampleClass1 {
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struct ExampleItem;
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struct ExampleItemSet {
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typedef ExampleItem* iterator;
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ExampleItem* operator[](unsigned);
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};
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void foo() {
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#ifdef MSVC
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// expected-warning@+4 {{omitted 'typename' is a Microsoft extension}}
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#else
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// expected-error@+2 {{template argument for template type parameter must be a type; did you forget 'typename'?}}
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#endif
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pair<ExampleItemSet::iterator, int> i;
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pair<this->ExampleItemSet::iterator, int> i; // expected-error-re {{template argument for template type parameter must be a type{{$}}}}
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pair<ExampleItemSet::operator[], int> i; // expected-error-re {{template argument for template type parameter must be a type{{$}}}}
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}
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#ifdef MSVC
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// expected-warning@+4 {{omitted 'typename' is a Microsoft extension}}
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#else
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// expected-error@+2 {{template argument for template type parameter must be a type; did you forget 'typename'?}}
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#endif
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pair<ExampleItemSet::iterator, int> elt;
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typedef map<int, ExampleItem*> ExampleItemMap;
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static void bar() {
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#ifdef MSVC
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// expected-warning@+4 {{omitted 'typename' is a Microsoft extension}}
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#else
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// expected-error@+2 {{template argument for template type parameter must be a type; did you forget 'typename'?}}
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#endif
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pair<ExampleItemMap::iterator, int> i;
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}
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#ifdef MSVC
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// expected-warning@+4 {{omitted 'typename' is a Microsoft extension}}
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#else
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// expected-error@+2 {{template argument for template type parameter must be a type; did you forget 'typename'?}}
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#endif
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pair<ExampleItemMap::iterator, int> entry;
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pair<bar, int> foobar; // expected-error {{template argument for template type parameter must be a type}}
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};
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} // namespace missing_typename
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namespace missing_typename_and_base {
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template <class T> struct Bar {}; // expected-note 1+ {{template parameter is declared here}}
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template <typename T>
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struct Foo : T {
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// FIXME: MSVC accepts this code.
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Bar<TypeInBase> x; // expected-error {{use of undeclared identifier 'TypeInBase'}}
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#ifdef MSVC
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// expected-warning@+4 {{omitted 'typename' is a Microsoft extension}}
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#else
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// expected-error@+2 {{must be a type; did you forget 'typename'?}}
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#endif
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Bar<T::TypeInBase> y;
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#ifdef MSVC
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// expected-warning@+4 {{omitted 'typename' is a Microsoft extension}}
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#else
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// expected-error@+2 {{must be a type; did you forget 'typename'?}}
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#endif
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Bar<T::NestedRD::TypeInNestedRD> z;
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};
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struct Base {
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typedef int TypeInBase;
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struct NestedRD {
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typedef int TypeInNestedRD;
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};
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};
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Foo<Base> x;
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} // namespace missing_typename_and_base
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namespace func_type_vs_construct_tmp {
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template <typename> struct S { typedef int type; };
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template <typename T> void f();
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template <int N> void f();
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// expected-error@+1 {{missing 'typename' prior to dependent type name 'S<int>::type'}}
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template <typename T> void g() { f</*typename*/ S<T>::type(int())>(); }
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// Adding typename does fix the diagnostic.
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template <typename T> void h() { f<typename S<T>::type(int())>(); }
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void j() {
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g<int>(); // expected-note-re {{in instantiation {{.*}} requested here}}
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h<int>();
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}
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} // namespace func_type_vs_construct_tmp
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namespace pointer_vs_multiply {
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int x;
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// expected-error@+1 {{missing 'typename' prior to dependent type name 'B::type_or_int'}}
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template <typename T> void g() { T::type_or_int * x; }
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// expected-error@+1 {{typename specifier refers to non-type member 'type_or_int' in 'pointer_vs_multiply::A'}}
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template <typename T> void h() { typename T::type_or_int * x; }
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struct A { static const int type_or_int = 5; }; // expected-note {{referenced member 'type_or_int' is declared here}}
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struct B { typedef int type_or_int; };
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void j() {
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g<A>();
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g<B>(); // expected-note-re {{in instantiation {{.*}} requested here}}
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h<A>(); // expected-note-re {{in instantiation {{.*}} requested here}}
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h<B>();
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}
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} // namespace pointer_vs_multiply
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