improvements

src/uvw/check.hpp

@@ -31,7 +31,7 @@ public:
     }
 
     void start(Callback cb) noexcept {
-        callback = cb;
+        callback = std::move(cb);
         get<uv_check_t>()->data = this;
         auto err = uv_check_start(get<uv_check_t>(), &proto);
 

src/uvw/resource.hpp

@@ -62,7 +62,7 @@ public:
     using Callback = std::function<void(UVWError)>;
 
     void close(Callback cb) noexcept {
-        callback = cb;
+        callback = std::move(cb);
         get<uv_handle_t>()->data = this;
         uv_close(get<uv_handle_t>(), &proto);
     }

src/uvw/stream.hpp

@@ -42,7 +42,7 @@ public:
     // TODO shutdown
 
     void listen(int backlog, CallbackListen cb) noexcept {
-        listenCallback = cb;
+        listenCallback = std::move(cb);
         this->template get<uv_stream_t>()->data = this;
         auto err = uv_listen(this->template get<uv_stream_t>(), backlog, &protoListen);
 

src/uvw/timer.hpp

@@ -34,7 +34,7 @@ public:
     }
 
     void start(const Time &timeout, const Time &rep, Callback cb) noexcept {
-        callback = cb;
+        callback = std::move(cb);
         get<uv_timer_t>()->data = this;
         auto err = uv_timer_start(get<uv_timer_t>(), &proto, timeout.count(), rep.count());