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// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
struct global {
};
namespace PR10127 {
struct outer {
struct middle {
struct inner {
int func();
int i;
};
struct inner2 {
};
struct inner3 {
};
int mfunc();
};
typedef int td_int;
};
struct str {
operator decltype(outer::middle::inner()) ();
operator decltype(outer::middle())::inner2 ();
operator decltype(outer())::middle::inner3 ();
str(int (decltype(outer::middle::inner())::*n)(),
int (decltype(outer::middle())::inner::*o)(),
int (decltype(outer())::middle::inner::*p)());
};
decltype(outer::middle::inner()) a;
void scope() {
a.decltype(outer::middle())::mfunc(); // expected-error{{'PR10127::outer::middle::mfunc' is not a member of class 'decltype(outer::middle::inner())'}}
a.decltype(outer::middle::inner())::func();
a.decltype(outer::middle())::inner::func();
a.decltype(outer())::middle::inner::func();
a.decltype(outer())::middle::inner::~inner();
decltype(outer())::middle::inner().func();
}
decltype(outer::middle())::inner b;
decltype(outer())::middle::inner c;
decltype(outer())::fail d; // expected-error{{no type named 'fail' in 'PR10127::outer'}}
decltype(outer())::fail::inner e; // expected-error{{no member named 'fail' in 'PR10127::outer'}}
decltype()::fail f; // expected-error{{expected expression}}
decltype()::middle::fail g; // expected-error{{expected expression}}
decltype(int()) h;
decltype(int())::PR10127::outer i; // expected-error{{'decltype(int())' (aka 'int') is not a class, namespace, or scoped enumeration}}
decltype(int())::global j; // expected-error{{'decltype(int())' (aka 'int') is not a class, namespace, or scoped enumeration}}
outer::middle k = decltype(outer())::middle();
outer::middle::inner l = decltype(outer())::middle::inner();
template<typename T>
struct templ {
typename decltype(T())::middle::inner x; // expected-error{{type 'decltype(int())' (aka 'int') cannot be used prior to '::' because it has no members}}
};
template class templ<int>; // expected-note{{in instantiation of template class 'PR10127::templ<int>' requested here}}
template class templ<outer>;
enum class foo {
bar,
baz
};
foo m = decltype(foo::bar)::baz;
enum E {
};
struct bar {
enum E : decltype(outer())::td_int(4);
enum F : decltype(outer())::td_int;
enum G : decltype; // expected-error{{expected '(' after 'decltype'}}
};
}
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