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2b0a8fcf70
Implement P2893R3 ‘Variadic friends’ for C++26. This closes #98587. Co-authored-by: Younan Zhang <zyn7109@gmail.com>
82 lines
2.3 KiB
C++
82 lines
2.3 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -ast-dump -std=c++2c %s | FileCheck %s
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// RUN: %clang_cc1 -ast-print -std=c++2c %s | FileCheck %s --check-prefix=PRINT
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// RUN: %clang_cc1 -emit-pch -std=c++2c -o %t %s
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// RUN: %clang_cc1 -x c++ -std=c++2c -include-pch %t -ast-dump-all /dev/null
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struct S;
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template <typename> struct TS; // #template
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// CHECK-LABEL: CXXRecordDecl {{.*}} struct Friends
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// PRINT-LABEL: struct Friends {
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struct Friends {
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// CHECK: FriendDecl {{.*}} 'int'
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// CHECK-NEXT: FriendDecl {{.*}} 'long'
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// PRINT-NEXT: friend int;
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// PRINT-NEXT: friend long;
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friend int, long;
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// CHECK-NEXT: FriendDecl {{.*}} 'int'
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// CHECK-NEXT: FriendDecl {{.*}} 'long'
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// CHECK-NEXT: FriendDecl {{.*}} 'char'
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// PRINT-NEXT: friend int;
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// PRINT-NEXT: friend long;
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// PRINT-NEXT: friend char;
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friend int, long, char;
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// CHECK-NEXT: FriendDecl {{.*}} 'S'
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// PRINT-NEXT: friend S;
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friend S;
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// CHECK-NEXT: FriendDecl {{.*}} 'S'
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// CHECK-NEXT: FriendDecl {{.*}} 'S'
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// CHECK-NEXT: FriendDecl {{.*}} 'S'
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// PRINT-NEXT: friend S;
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// PRINT-NEXT: friend S;
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// PRINT-NEXT: friend S;
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friend S, S, S;
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// CHECK-NEXT: FriendDecl
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// CHECK-NEXT: ClassTemplateDecl {{.*}} friend TS
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// PRINT-NEXT: friend template <typename> struct TS;
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template <typename> friend struct TS;
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};
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namespace specialisations {
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template<class T>
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struct C {
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template<class U> struct Nested;
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};
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struct N {
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template<class U> class C;
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};
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// CHECK-LABEL: ClassTemplateDecl {{.*}} Variadic
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// PRINT-LABEL: template <typename ...Pack> struct Variadic {
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template <typename ...Pack> struct Variadic {
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// CHECK: FriendDecl {{.*}} 'Pack'...
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// CHECK-NEXT: FriendDecl {{.*}} 'long'
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// CHECK-NEXT: FriendDecl {{.*}} 'Pack'...
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// PRINT-NEXT: friend Pack...;
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// PRINT-NEXT: friend long;
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// PRINT-NEXT: friend Pack...;
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friend Pack..., long, Pack...;
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// CHECK-NEXT: FriendDecl {{.*}} 'TS<Pack>'...
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// PRINT-NEXT: friend TS<Pack>...;
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friend TS<Pack>...;
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};
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// CHECK-LABEL: ClassTemplateDecl {{.*}} S2
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// PRINT-LABEL: template <class ...Ts> struct S2 {
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template<class ...Ts> struct S2 {
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// CHECK: FriendDecl {{.*}} 'class C<Ts>':'C<Ts>'...
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// PRINT-NEXT: friend class C<Ts>...;
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friend class C<Ts>...;
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// CHECK-NEXT: FriendDecl {{.*}} 'class N::C<Ts>':'C<Ts>'...
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// PRINT-NEXT: friend class N::C<Ts>...
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friend class N::C<Ts>...;
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};
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}
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