10 struct RW;  struct
12 impl AsyncRead for RW {  implementation
23 impl AsyncWrite for RW {  implementation
45     assert_bound::<ReadHalf<RW>>();  in is_send_and_sync()
46     assert_bound::<WriteHalf<RW>>();  in is_send_and_sync()
51     let (r1, w1) = split(RW);  in split_stream_id()
52     let (r2, w2) = split(RW);  in split_stream_id()
61     let (r, w) = split(RW);  in unsplit_ok()
68     let (r, _) = split(RW);  in unsplit_err1()
69     let (_, w) = split(RW);  in unsplit_err1()
76     let (_, w) = split(RW);  in unsplit_err2()
77     let (r, _) = split(RW);  in unsplit_err2()