io: Take struct re-export to main crate (#1670)

tokio-io/src/io/mod.rs

@@ -43,6 +43,8 @@ pub use self::empty::{empty, Empty};
 pub use self::repeat::{repeat, Repeat};
 #[allow(unreachable_pub)] // https://github.com/rust-lang/rust/issues/57411
 pub use self::sink::{sink, Sink};
+#[allow(unreachable_pub)] // https://github.com/rust-lang/rust/issues/57411
+pub use self::take::Take;
 
 // used by `BufReader` and `BufWriter`
 // https://github.com/rust-lang/rust/blob/master/src/libstd/sys_common/io.rs#L1

tokio-io/src/lib.rs

@@ -36,7 +36,7 @@ pub use self::async_write::AsyncWrite;
 #[cfg(feature = "util")]
 pub use self::io::{
     copy, empty, repeat, sink, AsyncBufReadExt, AsyncReadExt, AsyncWriteExt, BufReader, BufStream,
-    BufWriter, Copy, Empty, Repeat, Sink,
+    BufWriter, Copy, Empty, Repeat, Sink, Take,
 };
 
 // Re-export `Buf` and `BufMut` since they are part of the API

tokio/src/io.rs

@@ -42,7 +42,7 @@ pub use tokio_fs::{stderr, stdin, stdout, Stderr, Stdin, Stdout};
 pub use tokio_io::split::split;
 pub use tokio_io::{
     empty, repeat, sink, AsyncBufRead, AsyncBufReadExt, AsyncRead, AsyncReadExt, AsyncWrite,
-    AsyncWriteExt, BufReader, BufWriter, Empty, Repeat, Sink,
+    AsyncWriteExt, BufReader, BufWriter, Empty, Repeat, Sink, Take,
 };
 
 // Re-export io::Error so that users don't have to deal