forked from OSchip/llvm-project
120 lines
3.7 KiB
C++
120 lines
3.7 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s
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// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
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struct X0 {
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X0 f1();
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X0 f2();
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};
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template<typename T>
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struct X1 {
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X1<T>(int);
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(X1<T>)(float);
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X1 f2();
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X1 f2(int);
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X1 f2(float);
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};
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// Error recovery: out-of-line constructors whose names have template arguments.
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template<typename T> X1<T>::X1<T>(int) { } // expected-error{{out-of-line constructor for 'X1' cannot have template arguments}}
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template<typename T> (X1<T>::X1<T>)(float) { } // expected-error{{out-of-line constructor for 'X1' cannot have template arguments}}
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// Error recovery: out-of-line constructor names intended to be types
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X0::X0 X0::f1() { return X0(); } // expected-error{{qualified reference to 'X0' is a constructor name rather than a type wherever a constructor can be declared}}
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struct X0::X0 X0::f2() { return X0(); }
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template<typename T> X1<T>::X1<T> X1<T>::f2() { } // expected-error{{qualified reference to 'X1' is a constructor name rather than a template name wherever a constructor can be declared}}
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template<typename T> X1<T>::X1<T> (X1<T>::f2)(int) { } // expected-error{{qualified reference to 'X1' is a constructor name rather than a template name wherever a constructor can be declared}}
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template<typename T> struct X1<T>::X1<T> (X1<T>::f2)(float) { }
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// We have a special case for lookup within using-declarations that are
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// member-declarations: foo::bar::baz::baz always names baz's constructor
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// in such a context, even if looking up 'baz' within foo::bar::baz would
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// not find the injected-class-name. Likewise foo::bar::baz<T>::baz also
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// names the constructor.
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namespace InhCtor {
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struct A {
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A(int);
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protected:
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int T();
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};
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typedef A T;
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struct B : A {
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// This is a using-declaration for 'int A::T()' in C++98, but is an
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// inheriting constructor declaration in C++11.
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using InhCtor::T::T;
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};
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#if __cplusplus < 201103L
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B b(123); // expected-error {{no matching constructor}}
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// expected-note@-7 2{{candidate constructor}}
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int n = b.T(); // ok, accessible
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#else
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B b(123); // ok, inheriting constructor
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int n = b.T(); // expected-error {{'T' is a protected member of 'InhCtor::A'}}
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// expected-note@-15 {{declared protected here}}
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// FIXME: EDG and GCC reject this too, but it's not clear why it would be
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// ill-formed.
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template<typename T>
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struct S : T {
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struct U : S { // expected-note 6{{candidate}}
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using S::S;
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};
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using T::T;
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};
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S<A>::U ua(0); // expected-error {{no match}}
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S<B>::U ub(0); // expected-error {{no match}}
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template<typename T>
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struct X : T {
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using T::Z::U::U;
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};
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template<typename T>
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struct X2 : T {
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using T::Z::template V<int>::V;
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};
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struct Y {
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struct Z {
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typedef Y U;
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template<typename T> using V = Y;
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};
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Y(int);
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};
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X<Y> xy(0);
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namespace Repeat {
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struct A {
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struct T {
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T(int);
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};
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};
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struct Z : A {
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using A::A::A;
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};
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template<typename T>
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struct ZT : T::T {
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using T::T::T;
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};
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}
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namespace NS {
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struct NS {};
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}
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struct DerivedFromNS : NS::NS {
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// No special case unless the NNS names a class.
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using InhCtor::NS::NS; // expected-error {{using declaration in class refers into 'InhCtor::NS::', which is not a class}}
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};
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// FIXME: Consider reusing the same diagnostic between dependent and non-dependent contexts
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typedef int I;
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struct UsingInt {
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using I::I; // expected-error {{'I' (aka 'int') is not a class, namespace, or enumeration}}
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};
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template<typename T> struct UsingIntTemplate {
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using T::T; // expected-error {{type 'int' cannot be used prior to '::' because it has no members}}
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};
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UsingIntTemplate<int> uit; // expected-note {{here}}
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#endif
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}
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