[clang-tidy] Fix misc-move-const-arg for move-only types.

Summary: Fix misc-move-const-arg false positives on move-only types.

Reviewers: sbenza

Reviewed By: sbenza

Subscribers: xazax.hun, cfe-commits

Differential Revision: https://reviews.llvm.org/D31160

llvm-svn: 302261

1 files changed, 13 insertions, 0 deletions

diff --git a/clang-tools-extra/test/clang-tidy/misc-move-const-arg.cpp b/clang-tools-extra/test/clang-tidy/misc-move-const-arg.cpp
index 2db682015c1..096f2f9725c 100644
--- a/clang-tools-extra/test/clang-tidy/misc-move-const-arg.cpp
+++ b/clang-tools-extra/test/clang-tidy/misc-move-const-arg.cpp
@@ -158,3 +158,16 @@ void moveToConstReferenceNegatives() {
   // a lambda that is, in turn, an argument to a macro.
   CALL([no_move_semantics] { M3(NoMoveSemantics, no_move_semantics); });
 }
+
+class MoveOnly {
+public:
+  MoveOnly(const MoveOnly &other) = delete;
+  MoveOnly &operator=(const MoveOnly &other) = delete;
+  MoveOnly(MoveOnly &&other) = default;
+  MoveOnly &operator=(MoveOnly &&other) = default;
+};
+template <class T>
+void Q(T);
+void moveOnlyNegatives(MoveOnly val) {
+  Q(std::move(val));
+}