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// RUN: %clang_cc1 -fsyntax-only -verify %s
namespace N {
enum { C };
template<class T> class B {
void f(T);
};
}
template<class C> void N::B<C>::f(C) {
C b;
}
namespace N {
enum { D };
namespace M {
enum { C , D };
template<typename C> class X {
template<typename U> void f(C, U);
template<typename D> void g(C, D) {
C c;
D d;
}
};
struct Y {
template<typename U> void f(U);
};
}
struct Y {
template<typename D> void f(D);
};
}
template<typename C>
template<typename D>
void N::M::X<C>::f(C, D) {
C c;
D d;
}
template<typename C>
void N::M::Y::f(C) {
C c;
}
template<typename D>
void N::Y::f(D) {
D d;
}
// Ensure we properly interleave the searches within classes and template parameter lists.
namespace SearchClassBetweenTemplateParameterLists {
int AA, BB; // none of the below lookups should ever consider these
struct Base {
using AA = void;
using BB = void;
};
struct BaseT : Base {
using T = void;
};
struct BaseU : Base {
using U = void;
};
template<typename T> struct A {
using AA = void;
template<typename U> struct B {
using BB = void;
void f(U);
void g(U);
void h(T);
void i(T);
template<typename V> void j(V);
template<typename V> void k(U);
// OK: these find the template parameter not the member.
template<typename AA> void l(AA x) { AA aa; }
template<typename BB> void m(BB x) { BB bb; }
struct C : Base {
// All OK; these find the template parameters.
template<typename> void f(T x) { T t; }
template<typename> void g(U x) { U u; }
template<typename AA> void h(AA x) { AA aa; }
template<typename BB> void i(BB x) { BB bb; }
};
struct CT : BaseT {
template<typename> void f(T x) { // expected-error {{void}}
T t; // expected-error {{incomplete}}
}
template<typename> void g(U x) { U u; }
template<typename AA> void h(AA x) { AA aa; }
template<typename BB> void i(BB x) { BB bb; }
};
struct CU : BaseU {
template<typename> void f(T x) { T t; }
template<typename> void g(U x) { // expected-error {{void}}
U u; // expected-error {{incomplete}}
}
template<typename AA> void h(AA x) { AA aa; }
template<typename BB> void i(BB x) { BB bb; }
};
};
};
// Search order for the below is:
// 1) template parameter scope of the function itself (if any)
// 2) class of which function is a member
// 3) template parameter scope of inner class
// 4) class of which class is a member
// 5) template parameter scope of outer class
// OK, 'AA' found in (3)
template<typename T> template<typename AA>
void A<T>::B<AA>::f(AA) {
AA aa;
}
// error, 'BB' found in (2)
template<typename T> template<typename BB>
void A<T>::B<BB>::g(BB) { // expected-error {{does not match}}
BB bb; // expected-error {{incomplete type}}
}
// error, 'AA' found in (4)
template<typename AA> template<typename U>
void A<AA>::B<U>::h(AA) { // expected-error {{does not match}}
AA aa; // expected-error {{incomplete type}}
}
// error, 'BB' found in (2)
template<typename BB> template<typename U>
void A<BB>::B<U>::i(BB) { // expected-error {{does not match}}
BB bb; // expected-error {{incomplete type}}
}
// OK, 'BB' found in (1)
template<typename T> template<typename U> template<typename BB>
void A<T>::B<U>::j(BB) {
BB bb;
}
// error, 'BB' found in (2)
template<typename T> template<typename BB> template<typename V>
void A<T>::B<BB>::k(V) { // expected-error {{does not match}}
BB bb; // expected-error {{incomplete type}}
}
}
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