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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
119 lines
4.5 KiB
C++
119 lines
4.5 KiB
C++
// RUN: %clang_cc1 -std=c++20 -triple x86_64-pc-linux -ast-dump=json %s | FileCheck %s
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// RUN: %clang_cc1 -std=c++20 -triple x86_64-pc-win32 -ast-dump=json %s | FileCheck %s -check-prefixes=CHECK,WIN32
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// This test validates that we compute correct AST properties of classes after choosing
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// their destructor when doing destructor overload resolution with concepts.
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template <int N>
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struct A {
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~A() requires(N == 1) = default;
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~A() requires(N == 2) = delete;
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~A() requires(N == 3);
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constexpr ~A() requires(N == 4);
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private:
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~A() requires(N == 5) = default;
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};
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template struct A<1>;
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// CHECK: "kind": "ClassTemplateSpecializationDecl",
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// CHECK: "definitionData": {
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// CHECK-NEXT: "canConstDefaultInit": true,
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// CHECK-NEXT: "canPassInRegisters": true,
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// CHECK-NEXT: "copyAssign": {
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// CHECK: "dtor": {
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// CHECK-NEXT: "irrelevant": true,
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// CHECK-NEXT: "trivial": true,
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// CHECK-NEXT: "userDeclared": true
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// CHECK-NEXT: },
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// CHECK-NEXT: "hasConstexprNonCopyMoveConstructor": true,
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// CHECK-NEXT: "isAggregate": true,
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// CHECK-NEXT: "isEmpty": true,
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// CHECK-NEXT: "isLiteral": true,
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// CHECK-NEXT: "isStandardLayout": true,
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// CHECK-NEXT: "isTrivial": true,
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// CHECK-NEXT: "isTriviallyCopyable": true,
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// CHECK-NEXT: "moveAssign": {},
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// CHECK-NEXT: "moveCtor": {}
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template struct A<2>;
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// CHECK: "kind": "ClassTemplateSpecializationDecl",
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// CHECK: "definitionData": {
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// CHECK-NEXT: "canConstDefaultInit": true,
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// CHECK-NEXT: "canPassInRegisters": true,
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// CHECK-NEXT: "copyAssign": {
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// CHECK: "dtor": {
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// CHECK-NEXT: "trivial": true,
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// CHECK-NEXT: "userDeclared": true
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// CHECK-NEXT: },
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// CHECK-NEXT: "hasConstexprNonCopyMoveConstructor": true,
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// CHECK-NEXT: "isAggregate": true,
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// CHECK-NEXT: "isEmpty": true,
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// CHECK-NEXT: "isStandardLayout": true,
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// CHECK-NEXT: "isTrivial": true,
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// CHECK-NEXT: "isTriviallyCopyable": true,
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// CHECK-NEXT: "moveAssign": {},
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// CHECK-NEXT: "moveCtor": {}
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template struct A<3>;
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// CHECK: "kind": "ClassTemplateSpecializationDecl",
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// CHECK: "definitionData": {
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// CHECK-NEXT: "canConstDefaultInit": true,
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// WIN32-NEXT: "canPassInRegisters": true,
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// CHECK-NEXT: "copyAssign": {
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// CHECK: "dtor": {
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// CHECK-NEXT: "nonTrivial": true,
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// CHECK-NEXT: "userDeclared": true
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// CHECK-NEXT: },
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// CHECK-NEXT: "hasConstexprNonCopyMoveConstructor": true,
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// CHECK-NEXT: "isAggregate": true,
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// CHECK-NEXT: "isEmpty": true,
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// CHECK-NEXT: "isStandardLayout": true,
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// CHECK-NEXT: "moveAssign": {},
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// CHECK-NEXT: "moveCtor": {}
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template struct A<4>;
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// CHECK: "kind": "ClassTemplateSpecializationDecl",
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// CHECK: "definitionData": {
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// CHECK-NEXT: "canConstDefaultInit": true,
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// WIN32-NEXT: "canPassInRegisters": true,
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// CHECK-NEXT: "copyAssign": {
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// CHECK: "dtor": {
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// CHECK-NEXT: "nonTrivial": true,
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// CHECK-NEXT: "userDeclared": true
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// CHECK-NEXT: },
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// CHECK-NEXT: "hasConstexprNonCopyMoveConstructor": true,
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// CHECK-NEXT: "isAggregate": true,
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// CHECK-NEXT: "isEmpty": true,
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// CHECK-NEXT: "isLiteral": true,
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// CHECK-NEXT: "isStandardLayout": true,
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// CHECK-NEXT: "moveAssign": {},
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// CHECK-NEXT: "moveCtor": {}
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template struct A<5>;
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// CHECK: "kind": "ClassTemplateSpecializationDecl",
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// CHECK: "definitionData": {
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// CHECK-NEXT: "canConstDefaultInit": true,
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// CHECK-NEXT: "canPassInRegisters": true,
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// CHECK-NEXT: "copyAssign": {
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// CHECK: "dtor": {
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// CHECK-NEXT: "trivial": true,
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// CHECK-NEXT: "userDeclared": true
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// CHECK-NEXT: },
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// CHECK-NEXT: "hasConstexprNonCopyMoveConstructor": true,
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// CHECK-NEXT: "isAggregate": true,
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// CHECK-NEXT: "isEmpty": true,
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// CHECK-NEXT: "isLiteral": true,
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// CHECK-NEXT: "isStandardLayout": true,
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// CHECK-NEXT: "isTrivial": true,
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// CHECK-NEXT: "isTriviallyCopyable": true,
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// CHECK-NEXT: "moveAssign": {},
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// CHECK-NEXT: "moveCtor": {}
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