21eb1af469
This patch implements a necessary part of P0848, the overload resolution for destructors. It is now possible to overload destructors based on constraints, and the eligible destructor will be selected at the end of the class. The approach this patch takes is to perform the overload resolution in Sema::ActOnFields and to mark the selected destructor using a new property in FunctionDeclBitfields. CXXRecordDecl::getDestructor is then modified to use this property to return the correct destructor. This closes https://github.com/llvm/llvm-project/issues/45614. Reviewed By: #clang-language-wg, erichkeane Differential Revision: https://reviews.llvm.org/D126194
105 lines
1.9 KiB
C++
105 lines
1.9 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
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template<typename A> class s0 {
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template<typename B> class s1 : public s0<A> {
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~s1() {}
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s0<A> ms0;
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};
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};
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struct Incomplete;
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template<typename T>
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void destroy_me(T me) {
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me.~T();
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}
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template void destroy_me(Incomplete*);
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namespace PR6152 {
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template<typename T> struct X { void f(); };
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template<typename T> struct Y { };
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template<typename T>
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void X<T>::f() {
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Y<T> *y;
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y->template Y<T>::~Y();
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y->template Y<T>::~Y<T>();
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y->~Y();
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}
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template struct X<int>;
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}
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namespace cvquals {
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template<typename T>
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void f(int *ptr) {
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ptr->~T();
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}
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template void f<const volatile int>(int *);
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}
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namespace PR7239 {
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template<class E> class A { };
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class B {
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void f() {
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A<int>* x;
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x->A<int>::~A<int>();
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}
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};
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}
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namespace PR7904 {
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struct Foo {};
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template <class T>
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Foo::~Foo() { // expected-error{{destructor cannot be declared as a template}}
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T t;
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T &pT = t;
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pT;
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}
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Foo f;
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}
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namespace rdar13140795 {
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template <class T> class shared_ptr {};
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template <typename T> struct Marshal {
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static int gc();
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};
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template <typename T> int Marshal<T>::gc() {
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shared_ptr<T> *x;
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x->template shared_ptr<T>::~shared_ptr();
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return 0;
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}
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void test() {
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Marshal<int>::gc();
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}
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}
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namespace PR16852 {
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template<typename T> struct S { int a; T x; };
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template<typename T> decltype(S<T>().~S()) f(); // expected-note {{candidate template ignored: couldn't infer template argument 'T'}}
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void g() { f(); } // expected-error {{no matching function for call to 'f'}}
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}
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class PR33189
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{
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template <class T>
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~PR33189() { } // expected-error{{destructor cannot be declared as a template}}
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};
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namespace PR38671 {
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struct S {
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template <class>
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~S(); // expected-error{{destructor cannot be declared as a template}}
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};
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struct T : S {
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~T() = default;
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};
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} // namespace PR38671
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