of a binary expression, continue on and parse the right-hand side of the binary expression anyway, but don't call the semantic actions to type-check. Previously, we would see the error and then, effectively, skip tokens until the end of the statement. The result should be more useful recovery, both in the normal case (we'll actually see errors beyond the first one in a statement), but it also helps code completion do a much better job, because we do "real" code completion on the right-hand side of an invalid binary expression rather than completing with the recovery completion. For example, given x = p->y if there is no variable named "x", we can still complete after the p-> as a member expression. Along the recovery path, we would have completed after the "->" as if we were in an expression context, which is mostly useless. llvm-svn: 114225
138 lines
3.2 KiB
C++
138 lines
3.2 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
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template<typename T, typename U>
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struct X0 : T::template apply<U> {
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X0(U u) : T::template apply<U>(u) { }
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};
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template<typename T, typename U>
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struct X1 : T::apply<U> { }; // expected-error{{use 'template' keyword to treat 'apply' as a dependent template name}}
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template<typename T>
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struct X2 : vector<T> { }; // expected-error{{unknown template name 'vector'}}
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namespace PR6031 {
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template<typename T>
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struct A;
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template <class X>
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struct C { };
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template <class TT>
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struct II {
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typedef typename A<TT>::type type;
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};
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template <class TT>
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struct FI : II<TT>
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{
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C<typename FI::type> a;
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};
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template <class TT>
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struct FI2
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{
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C<typename FI2::type> a; // expected-error{{no type named 'type' in 'FI2<TT>'}} \
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// expected-error{{C++ requires a type specifier for all declarations}}
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};
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template<typename T>
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struct Base {
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class Nested { };
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template<typename U> struct MemberTemplate { };
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int a;
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};
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template<typename T>
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struct HasDepBase : Base<T> {
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int foo() {
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class HasDepBase::Nested nested;
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typedef typename HasDepBase::template MemberTemplate<T>::type type;
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return HasDepBase::a;
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}
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};
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template<typename T>
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struct NoDepBase {
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int foo() {
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class NoDepBase::Nested nested; // expected-error{{no class named 'Nested' in 'NoDepBase<T>'}}
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typedef typename NoDepBase::template MemberTemplate<T>::type type; // expected-error{{'MemberTemplate' following the 'template' keyword does not refer to a template}} \
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// FIXME: expected-error{{unqualified-id}}
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return NoDepBase::a; // expected-error{{no member named 'a' in 'NoDepBase<T>'}}
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}
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};
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}
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namespace Ambig {
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template<typename T>
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struct Base1 {
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typedef int type; // expected-note{{member found by ambiguous name lookup}}
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};
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struct Base2 {
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typedef float type; // expected-note{{member found by ambiguous name lookup}}
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};
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template<typename T>
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struct Derived : Base1<T>, Base2 {
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typedef typename Derived::type type; // expected-error{{member 'type' found in multiple base classes of different types}}
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type *foo(float *fp) { return fp; }
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};
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Derived<int> di; // expected-note{{instantiation of}}
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}
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namespace PR6081 {
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template<typename T>
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struct A { };
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template<typename T>
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class B : public A<T>
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{
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public:
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template< class X >
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void f0(const X & k)
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{
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this->template f1<int>()(k);
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}
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};
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template<typename T>
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class C
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{
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public:
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template< class X >
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void f0(const X & k)
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{
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this->template f1<int>()(k); // expected-error{{'f1' following the 'template' keyword does not refer to a template}} \
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// FIXME: expected-error{{unqualified-id}} \
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// expected-error{{function-style cast or type construction}} \
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// expected-error{{expected expression}}
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}
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};
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}
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namespace PR6413 {
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template <typename T> class Base_A { };
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class Base_B { };
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template <typename T>
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class Derived
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: public virtual Base_A<T>
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, public virtual Base_B
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{ };
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}
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namespace PR5812 {
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template <class T> struct Base {
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Base* p;
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};
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template <class T> struct Derived: public Base<T> {
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typename Derived::Base* p; // meaning Derived::Base<T>
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};
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Derived<int> di;
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}
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