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TheRock/compiler/amd-llvm/clang-tools-extra/test/clang-tidy/checkers/misc/unused-using-decls-module.cpp
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70 lines
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C++

// RUN: %check_clang_tidy -std=c++20-or-later %s misc-unused-using-decls %t -- --fix-notes
module;
namespace n {
struct S {};
} // namespace n
using n::S; // n::S
// CHECK-MESSAGES: :[[@LINE-1]]:10: warning: using decl 'S' is unused
// CHECK-FIXES: // n::S
export module foo;
struct A {};
export struct B {};
export struct C {};
export struct D {};
namespace ns1 {
using ::A; // ns1::A
// CHECK-MESSAGES: :[[@LINE-1]]:9: warning: using decl 'A' is unused
// CHECK-FIXES: // ns1::A
// If the decl isn't exported, it's unused, even if the underlying struct is exported.
using ::B; // ns1::B
// CHECK-MESSAGES: :[[@LINE-1]]:9: warning: using decl 'B' is unused
// CHECK-FIXES: // ns1::B
export using ::C;
export {
using ::D;
}
} // namespace n
export namespace ns2 {
using ::B;
} // namespace ns2
export {
namespace ns3 {
using ::B;
} // namespace ns3
}
export namespace ns3 {
struct E {};
} // namespace ns3
module :private;
using ns3::E; // ns3::E
// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: using decl 'E' is unused
// CHECK-FIXES: // ns3::E