get rid of warnings (also fixes msvc build)

Signed-off-by: Kirill Mironov <[email protected]>

Author: Drevoed

src/io/buf_writer.rs

@@ -1,8 +1,7 @@
-use crate::io::Write;
 use crate::task::{Context, Poll};
-use futures::{ready, AsyncWrite, Future, Stream};
+use futures::{ready, AsyncWrite};
 use std::fmt;
-use std::io::{self, IntoInnerError};
+use std::io;
 use std::pin::Pin;
 
 const DEFAULT_CAPACITY: usize = 8 * 1024;
@@ -74,10 +73,10 @@ const DEFAULT_CAPACITY: usize = 8 * 1024;
 /// together by the buffer, and will all be written out in one system call when
 /// the `stream` is dropped.
 ///
-/// [`Write`]: ../../std/io/trait.Write.html
-/// [`TcpStream::write`]: ../../std/net/struct.TcpStream.html#method.write
-/// [`TcpStream`]: ../../std/net/struct.TcpStream.html
-/// [`flush`]: #method.flush
+/// [`Write`]: trait.Write.html
+/// [`TcpStream::write`]: ../net/struct.TcpStream.html#method.write
+/// [`TcpStream`]: ../net/struct.TcpStream.html
+/// [`flush`]: trait.Write.html#tymethod.flush
 pub struct BufWriter<W> {
     inner: W,
     buf: Vec<u8>,
@@ -218,6 +217,7 @@ impl<W: AsyncWrite + Unpin> BufWriter<W> {
         &self.buf
     }
 
+
     pub fn poll_flush_buf(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> {
         let Self {
             inner,
@@ -256,7 +256,7 @@ impl<W: AsyncWrite + Unpin> BufWriter<W> {
 impl<W: AsyncWrite + Unpin> AsyncWrite for BufWriter<W> {
     fn poll_write(
         mut self: Pin<&mut Self>,
-        cx: &mut Context,
+        cx: &mut Context<'_>,
         buf: &[u8],
     ) -> Poll<io::Result<usize>> {
         if self.buf.len() + buf.len() > self.buf.capacity() {
@@ -269,12 +269,12 @@ impl<W: AsyncWrite + Unpin> AsyncWrite for BufWriter<W> {
         }
     }
 
-    fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<io::Result<()>> {
+    fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> {
         ready!(self.as_mut().poll_flush_buf(cx))?;
         self.inner().poll_flush(cx)
     }
 
-    fn poll_close(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<io::Result<()>> {
+    fn poll_close(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> {
         ready!(self.as_mut().poll_flush_buf(cx))?;
         self.inner().poll_close(cx)
     }
@@ -356,7 +356,7 @@ impl<W: AsyncWrite + Unpin> LineWriter<W> {
 impl<W: AsyncWrite + Unpin> AsyncWrite for LineWriter<W> {
     fn poll_write(
         mut self: Pin<&mut Self>,
-        cx: &mut Context,
+        cx: &mut Context<'_>,
         buf: &[u8],
     ) -> Poll<io::Result<usize>> {
         if self.need_flush {
@@ -379,13 +379,13 @@ impl<W: AsyncWrite + Unpin> AsyncWrite for LineWriter<W> {
         }
     }
 
-    fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<io::Result<()>> {
+    fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> {
         self.as_mut().inner().poll_flush(cx)?;
         *self.need_flush() = false;
         Poll::Ready(Ok(()))
     }
 
-    fn poll_close(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<io::Result<()>> {
+    fn poll_close(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> {
         self.as_mut().inner().poll_flush(cx)?;
         self.inner().poll_close(cx)
     }
@@ -407,6 +407,7 @@ where
 }
 
 mod tests {
+    #![allow(unused_imports)]
     use super::LineWriter;
     use crate::prelude::*;
     use crate::task;