291 lines
9.5 KiB
C++
291 lines
9.5 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -std=c++98 -verify %s
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// RUN: %clang_cc1 -fsyntax-only -std=c++11 -verify %s
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// RUN: %clang_cc1 -fsyntax-only -std=c++14 -verify %s
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// RUN: not %clang_cc1 -fsyntax-only -std=c++98 -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck --check-prefix=CXX98 %s
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// RUN: not %clang_cc1 -fsyntax-only -std=c++11 -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck --check-prefix=CXX11 %s
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// C++0x N2914.
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struct X {
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int i;
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static int a;
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enum E { e };
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};
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using X::i; // expected-error{{using declaration cannot refer to class member}}
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using X::s; // expected-error{{using declaration cannot refer to class member}}
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using X::e; // expected-error{{using declaration cannot refer to class member}}
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using X::E::e; // expected-error{{using declaration cannot refer to class member}} expected-warning 0-1{{C++11}}
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#if __cplusplus < 201103L
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// expected-note@-3 {{use a const variable}}
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// expected-note@-3 {{use a const variable}}
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// CXX98-NOT: fix-it:"{{.*}}":{[[@LINE-5]]:
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// CXX98-NOT: fix-it:"{{.*}}":{[[@LINE-5]]:
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#else
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// expected-note@-8 {{use a constexpr variable}}
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// expected-note@-8 {{use a constexpr variable}}
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// CXX11: fix-it:"{{.*}}":{[[@LINE-10]]:1-[[@LINE-10]]:6}:"constexpr auto e = "
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// CXX11: fix-it:"{{.*}}":{[[@LINE-10]]:1-[[@LINE-10]]:6}:"constexpr auto e = "
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#endif
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void f() {
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using X::i; // expected-error{{using declaration cannot refer to class member}}
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using X::s; // expected-error{{using declaration cannot refer to class member}}
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using X::e; // expected-error{{using declaration cannot refer to class member}}
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using X::E::e; // expected-error{{using declaration cannot refer to class member}} expected-warning 0-1{{C++11}}
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#if __cplusplus < 201103L
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// expected-note@-3 {{use a const variable}}
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// expected-note@-3 {{use a const variable}}
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// CXX98-NOT: fix-it:"{{.*}}":{[[@LINE-5]]:
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// CXX98-NOT: fix-it:"{{.*}}":{[[@LINE-5]]:
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#else
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// expected-note@-8 {{use a constexpr variable}}
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// expected-note@-8 {{use a constexpr variable}}
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// CXX11: fix-it:"{{.*}}":{[[@LINE-10]]:3-[[@LINE-10]]:8}:"constexpr auto e = "
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// CXX11: fix-it:"{{.*}}":{[[@LINE-10]]:3-[[@LINE-10]]:8}:"constexpr auto e = "
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#endif
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}
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namespace PR21933 {
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struct A { int member; };
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struct B { static int member; };
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enum C { member };
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template <typename T>
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struct X {
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static void StaticFun() {
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using T::member; // expected-error 2{{class member}} expected-note {{use a reference instead}}
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#if __cplusplus < 201103L
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// expected-error@-2 {{cannot be used prior to '::'}}
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#endif
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(void)member;
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}
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};
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template<typename T>
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struct Y : T {
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static void StaticFun() {
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using T::member; // expected-error 2{{class member}} expected-note {{use a reference instead}}
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(void)member;
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}
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};
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void f() {
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X<A>::StaticFun(); // expected-note {{instantiation of}}
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X<B>::StaticFun(); // expected-note {{instantiation of}}
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X<C>::StaticFun();
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#if __cplusplus < 201103L
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// expected-note@-2 {{instantiation of}}
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#endif
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Y<A>::StaticFun(); // expected-note {{instantiation of}}
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Y<B>::StaticFun(); // expected-note {{instantiation of}}
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}
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template<typename T, typename U> void value_vs_value() {
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using T::a; // expected-note {{previous}}
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#if __cplusplus < 201103L
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// expected-error@-2 {{cannot be used prior to '::'}}
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#endif
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extern int a(); // expected-error {{different kind of symbol}}
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a();
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extern int b(); // expected-note {{previous}}
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using T::b; // expected-error {{different kind of symbol}}
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b();
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using T::c; // expected-note {{previous}}
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using U::c; // expected-error-re {{redefinition of 'c'{{$}}}}
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c();
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}
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template<typename T, typename U> void value_vs_type() {
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using T::Xt; // expected-note {{previous}}
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typedef struct {} Xt; // expected-error {{different kind of symbol}}
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(void)Xt;
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using T::Xs; // expected-note {{hidden by}}
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struct Xs {};
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(void)Xs;
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Xs xs; // expected-error {{must use 'struct'}}
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using T::Xe; // expected-note {{hidden by}}
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enum Xe {};
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(void)Xe;
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Xe xe; // expected-error {{must use 'enum'}}
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typedef struct {} Yt; // expected-note {{candidate}}
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using T::Yt; // eypected-error {{different kind of symbol}} expected-note {{candidate}}
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Yt yt; // expected-error {{ambiguous}}
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struct Ys {};
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using T::Ys; // expected-note {{hidden by}}
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(void)Ys;
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Ys ys; // expected-error {{must use 'struct'}}
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enum Ye {};
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using T::Ye; // expected-note {{hidden by}}
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Ye ye; // expected-error {{must use 'enum'}}
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}
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template<typename T> void type() {
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// Must be a class member because T:: can only name a class or enum,
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// and an enum cannot have a type member.
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using typename T::X; // expected-error {{cannot refer to class member}}
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}
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namespace N1 { enum E { a, b, c }; }
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namespace N2 { enum E { a, b, c }; }
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void g() { value_vs_value<N1::E, N2::E>(); }
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#if __cplusplus < 201103L
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// expected-note@-2 {{in instantiation of}}
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#endif
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#if __cplusplus >= 201402L
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namespace partial_substitute {
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template<typename T> auto f() {
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return [](auto x) {
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using A = typename T::template U<decltype(x)>;
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using A::E::e;
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struct S : A {
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using A::f;
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using typename A::type;
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type f(int) { return e; }
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};
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return S();
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};
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}
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enum Enum { e };
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struct X {
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template<typename T> struct U {
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int f(int, int);
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using type = int;
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using E = Enum;
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};
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};
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int test() {
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auto s = f<X>()(0);
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return s.f(0) + s.f(0, 0);
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}
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template<typename T, typename U> auto g() {
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return [](auto x) {
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using X = decltype(x);
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struct S : T::template Q<X>, U::template Q<X> {
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using T::template Q<X>::f;
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using U::template Q<X>::f;
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void h() { f(); }
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void h(int n) { f(n); }
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};
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return S();
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};
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}
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struct A { template<typename> struct Q { int f(); }; };
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struct B { template<typename> struct Q { int f(int); }; };
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int test2() {
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auto s = g<A, B>()(0);
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s.f();
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s.f(0);
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s.h();
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s.h(0);
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}
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}
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#endif
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template<typename T, typename U> struct RepeatedMember : T, U {
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// FIXME: This is the wrong error: we should complain that a member type
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// cannot be redeclared at class scope.
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using typename T::type; // expected-note {{candidate}}
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using typename U::type; // expected-note {{candidate}}
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type x; // expected-error {{ambiguous}}
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};
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}
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struct S {
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static int n;
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struct Q {};
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enum E {};
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typedef Q T;
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void f();
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static void g();
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};
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using S::n; // expected-error{{class member}} expected-note {{use a reference instead}}
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#if __cplusplus < 201103L
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// CXX98-NOT: fix-it:"{{.*}}":{[[@LINE-2]]
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#else
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// CXX11: fix-it:"{{.*}}":{[[@LINE-4]]:1-[[@LINE-4]]:6}:"auto &n = "
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#endif
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using S::Q; // expected-error{{class member}}
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#if __cplusplus < 201103L
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// expected-note@-2 {{use a typedef declaration instead}}
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// CXX98: fix-it:"{{.*}}":{[[@LINE-3]]:1-[[@LINE-3]]:6}:"typedef"
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// CXX98: fix-it:"{{.*}}":{[[@LINE-4]]:11-[[@LINE-4]]:11}:" Q"
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#else
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// expected-note@-6 {{use an alias declaration instead}}
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// CXX11: fix-it:"{{.*}}":{[[@LINE-7]]:7-[[@LINE-7]]:7}:"Q = "
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#endif
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using S::E; // expected-error{{class member}}
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#if __cplusplus < 201103L
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// expected-note@-2 {{use a typedef declaration instead}}
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// CXX98: fix-it:"{{.*}}":{[[@LINE-3]]:1-[[@LINE-3]]:6}:"typedef"
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// CXX98: fix-it:"{{.*}}":{[[@LINE-4]]:11-[[@LINE-4]]:11}:" E"
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#else
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// expected-note@-6 {{use an alias declaration instead}}
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// CXX11: fix-it:"{{.*}}":{[[@LINE-7]]:7-[[@LINE-7]]:7}:"E = "
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#endif
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using S::T; // expected-error{{class member}}
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#if __cplusplus < 201103L
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// expected-note@-2 {{use a typedef declaration instead}}
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// CXX98: fix-it:"{{.*}}":{[[@LINE-3]]:1-[[@LINE-3]]:6}:"typedef"
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// CXX98: fix-it:"{{.*}}":{[[@LINE-4]]:11-[[@LINE-4]]:11}:" T"
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#else
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// expected-note@-6 {{use an alias declaration instead}}
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// CXX11: fix-it:"{{.*}}":{[[@LINE-7]]:7-[[@LINE-7]]:7}:"T = "
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#endif
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using S::f; // expected-error{{class member}}
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using S::g; // expected-error{{class member}}
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void h() {
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using S::n; // expected-error{{class member}} expected-note {{use a reference instead}}
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#if __cplusplus < 201103L
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// CXX98-NOT: fix-it:"{{.*}}":{[[@LINE-2]]
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#else
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// CXX11: fix-it:"{{.*}}":{[[@LINE-4]]:3-[[@LINE-4]]:8}:"auto &n = "
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#endif
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using S::Q; // expected-error{{class member}}
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#if __cplusplus < 201103L
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// expected-note@-2 {{use a typedef declaration instead}}
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// CXX98: fix-it:"{{.*}}":{[[@LINE-3]]:3-[[@LINE-3]]:8}:"typedef"
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// CXX98: fix-it:"{{.*}}":{[[@LINE-4]]:13-[[@LINE-4]]:13}:" Q"
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#else
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// expected-note@-6 {{use an alias declaration instead}}
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// CXX11: fix-it:"{{.*}}":{[[@LINE-7]]:9-[[@LINE-7]]:9}:"Q = "
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#endif
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using S::E; // expected-error{{class member}}
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#if __cplusplus < 201103L
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// expected-note@-2 {{use a typedef declaration instead}}
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// CXX98: fix-it:"{{.*}}":{[[@LINE-3]]:3-[[@LINE-3]]:8}:"typedef"
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// CXX98: fix-it:"{{.*}}":{[[@LINE-4]]:13-[[@LINE-4]]:13}:" E"
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#else
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// expected-note@-6 {{use an alias declaration instead}}
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// CXX11: fix-it:"{{.*}}":{[[@LINE-7]]:9-[[@LINE-7]]:9}:"E = "
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#endif
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using S::T; // expected-error{{class member}}
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#if __cplusplus < 201103L
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// expected-note@-2 {{use a typedef declaration instead}}
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// CXX98: fix-it:"{{.*}}":{[[@LINE-3]]:3-[[@LINE-3]]:8}:"typedef"
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// CXX98: fix-it:"{{.*}}":{[[@LINE-4]]:13-[[@LINE-4]]:13}:" T"
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#else
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// expected-note@-6 {{use an alias declaration instead}}
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// CXX11: fix-it:"{{.*}}":{[[@LINE-7]]:9-[[@LINE-7]]:9}:"T = "
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#endif
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using S::f; // expected-error{{class member}}
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using S::g; // expected-error{{class member}}
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}
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