113 lines
4.5 KiB
C++
113 lines
4.5 KiB
C++
// RUN: %clang_cc1 -verify -std=c++11 %s -Wno-defaulted-function-deleted -triple x86_64-linux-gnu
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struct NonTrivDtor {
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~NonTrivDtor();
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};
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struct DeletedDtor {
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~DeletedDtor() = delete; // expected-note 5 {{deleted here}}
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};
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class InaccessibleDtor {
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~InaccessibleDtor() = default;
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};
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// A defaulted destructor for a class X is defined as deleted if:
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// -- X is a union-like class that has a variant member with a non-trivial
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// destructor.
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union A1 {
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A1();
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NonTrivDtor n; // expected-note {{destructor of 'A1' is implicitly deleted because variant field 'n' has a non-trivial destructor}}
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};
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A1 a1; // expected-error {{deleted function}}
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struct A2 {
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A2();
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union {
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NonTrivDtor n; // expected-note {{because variant field 'n' has a non-trivial destructor}}
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};
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};
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A2 a2; // expected-error {{deleted function}}
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union A3 {
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A3();
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NonTrivDtor n[3]; // expected-note {{because variant field 'n' has a non-trivial destructor}}
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};
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A3 a3; // expected-error {{deleted function}}
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struct A4 {
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A4();
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union {
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NonTrivDtor n[3]; // expected-note {{because variant field 'n' has a non-trivial destructor}}
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};
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};
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A4 a4; // expected-error {{deleted function}}
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// -- any of the non-static data members has class type M (or array thereof) and
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// M has a deleted or inaccessible destructor.
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struct B1 {
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B1();
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DeletedDtor a; // expected-note {{because field 'a' has a deleted destructor}}
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};
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B1 b1; // expected-error {{deleted function}}
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struct B2 {
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B2();
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InaccessibleDtor a; // expected-note {{because field 'a' has an inaccessible destructor}}
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};
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B2 b2; // expected-error {{deleted function}}
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struct B3 {
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B3();
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DeletedDtor a[4]; // expected-note {{because field 'a' has a deleted destructor}}
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};
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B3 b3; // expected-error {{deleted function}}
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struct B4 {
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B4();
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InaccessibleDtor a[4]; // expected-note {{because field 'a' has an inaccessible destructor}}
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};
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B4 b4; // expected-error {{deleted function}}
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union B5 {
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B5();
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// FIXME: Describe the anonymous union member better than ''.
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union { // expected-note {{because field '' has a deleted destructor}}
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DeletedDtor a; // expected-note {{because field 'a' has a deleted destructor}}
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};
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};
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B5 b5; // expected-error {{deleted function}}
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union B6 {
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B6();
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union { // expected-note {{because field '' has a deleted destructor}}
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InaccessibleDtor a; // expected-note {{because field 'a' has an inaccessible destructor}}
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};
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};
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B6 b6; // expected-error {{deleted function}}
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// -- any direct or virtual base class has a deleted or inaccessible destructor.
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struct C1 : DeletedDtor { C1(); } c1; // expected-error {{deleted function}} expected-note {{base class 'DeletedDtor' has a deleted destructor}}
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struct C2 : InaccessibleDtor { C2(); } c2; // expected-error {{deleted function}} expected-note {{base class 'InaccessibleDtor' has an inaccessible destructor}}
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struct C3 : virtual DeletedDtor { C3(); } c3; // expected-error {{deleted function}} expected-note {{base class 'DeletedDtor' has a deleted destructor}}
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struct C4 : virtual InaccessibleDtor { C4(); } c4; // expected-error {{deleted function}} expected-note {{base class 'InaccessibleDtor' has an inaccessible destructor}}
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// -- for a virtual destructor, lookup of the non-array deallocation function
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// results in an ambiguity or a function that is deleted or inaccessible.
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class D1 {
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void operator delete(void*); // expected-note {{here}}
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public:
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virtual ~D1() = default; // expected-note 2{{here}}
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} d1; // ok
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struct D2 : D1 { // expected-note 2{{virtual destructor requires an unambiguous, accessible 'operator delete'}} \
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// expected-error {{deleted function '~D2' cannot override a non-deleted}}
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// implicitly-virtual destructor
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} d2; // expected-error {{deleted function}}
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struct D3 { // expected-note {{virtual destructor requires an unambiguous, accessible 'operator delete'}}
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virtual ~D3() = default; // expected-note {{explicitly defaulted function was implicitly deleted here}}
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void operator delete(void*, double = 0.0);
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void operator delete(void*, char = 0);
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} d3; // expected-error {{deleted function}}
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struct D4 { // expected-note {{virtual destructor requires an unambiguous, accessible 'operator delete'}}
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virtual ~D4() = default; // expected-note {{implicitly deleted here}}
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void operator delete(void*) = delete;
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} d4; // expected-error {{deleted function}}
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struct D5 : D1 {
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~D5(); // ok (but not definable)
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} d5;
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D5::~D5() {} // expected-error {{'operator delete' is a private member of 'D1'}}
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struct D6 : D1 {
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~D6() = delete; // expected-error {{deleted function '~D6' cannot override a non-deleted}}
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};
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