net: Use ToConn and ToListener traits for objects that can be converted

to Conn and Listener.

7 files changed, 89 insertions, 8 deletions

diff --git a/net/src/connection.rs b/net/src/connection.rs
index b1d7550..3c047a0 100644
--- a/net/src/connection.rs
+++ b/net/src/connection.rs
@@ -8,6 +8,11 @@ use crate::{
 /// Alias for `Box<dyn Connection>`
 pub type Conn = Box<dyn Connection>;
 
+/// A trait for objects which can be converted to [`Conn`].
+pub trait ToConn {
+    fn to_conn(self) -> Conn;
+}
+
 /// Connection is a generic network connection interface for
 /// [`udp::UdpConn`], [`tcp::TcpConn`], and [`unix::UnixConn`].
 ///
diff --git a/net/src/lib.rs b/net/src/lib.rs
index 813a090..ff466af 100644
--- a/net/src/lib.rs
+++ b/net/src/lib.rs
@@ -5,9 +5,9 @@ mod listener;
 mod transports;
 
 pub use {
-    connection::{dial, Conn, Connection},
+    connection::{dial, Conn, Connection, ToConn},
     endpoint::{Addr, Endpoint, Port},
-    listener::{listen, ConnListener, Listener},
+    listener::{listen, ConnListener, Listener, ToListener},
     transports::{
         tcp::{dial_tcp, listen_tcp, TcpConn},
         tls,
diff --git a/net/src/listener.rs b/net/src/listener.rs
index fcd1175..cab5330 100644
--- a/net/src/listener.rs
+++ b/net/src/listener.rs
@@ -8,6 +8,11 @@ use crate::{
 /// Alias for `Box<dyn ConnListener>`
 pub type Listener = Box<dyn ConnListener>;
 
+/// A trait for objects which can be converted to [`Listener`].
+pub trait ToListener {
+    fn to_listener(self) -> Listener;
+}
+
 /// ConnListener is a generic network listener.
 #[async_trait]
 pub trait ConnListener: Send + Sync {
diff --git a/net/src/transports/tcp.rs b/net/src/transports/tcp.rs
index 7cd7127..99243b5 100644
--- a/net/src/transports/tcp.rs
+++ b/net/src/transports/tcp.rs
@@ -7,9 +7,9 @@ use smol::{
 };
 
 use crate::{
-    connection::Connection,
+    connection::{Connection, ToConn},
     endpoint::{Addr, Endpoint, Port},
-    listener::ConnListener,
+    listener::{ConnListener, ToListener},
     Error, Result,
 };
 
@@ -95,3 +95,21 @@ impl From<TcpListener> for Box<dyn ConnListener> {
         Box::new(listener)
     }
 }
+
+impl ToConn for TcpStream {
+    fn to_conn(self) -> Box<dyn Connection> {
+        self.into()
+    }
+}
+
+impl ToConn for TcpConn {
+    fn to_conn(self) -> Box<dyn Connection> {
+        Box::new(self)
+    }
+}
+
+impl ToListener for TcpListener {
+    fn to_listener(self) -> Box<dyn ConnListener> {
+        self.into()
+    }
+}
diff --git a/net/src/transports/tls.rs b/net/src/transports/tls.rs
index bc928b0..8a43d7d 100644
--- a/net/src/transports/tls.rs
+++ b/net/src/transports/tls.rs
@@ -9,9 +9,9 @@ use smol::{
 };
 
 use crate::{
-    connection::Connection,
+    connection::{Connection, ToConn},
     endpoint::{Addr, Endpoint, Port},
-    listener::ConnListener,
+    listener::{ConnListener, ToListener},
     Error, Result,
 };
 
@@ -150,3 +150,21 @@ impl From<TlsListener> for Box<dyn ConnListener> {
         Box::new(listener)
     }
 }
+
+impl ToConn for TlsStream<TcpStream> {
+    fn to_conn(self) -> Box<dyn Connection> {
+        self.into()
+    }
+}
+
+impl ToConn for TlsConn {
+    fn to_conn(self) -> Box<dyn Connection> {
+        Box::new(self)
+    }
+}
+
+impl ToListener for TlsListener {
+    fn to_listener(self) -> Box<dyn ConnListener> {
+        self.into()
+    }
+}
diff --git a/net/src/transports/udp.rs b/net/src/transports/udp.rs
index 9576876..a8b505c 100644
--- a/net/src/transports/udp.rs
+++ b/net/src/transports/udp.rs
@@ -4,7 +4,7 @@ use async_trait::async_trait;
 use smol::net::UdpSocket;
 
 use crate::{
-    connection::Connection,
+    connection::{Connection, ToConn},
     endpoint::{Addr, Endpoint, Port},
     Error, Result,
 };
@@ -79,3 +79,15 @@ impl From<UdpSocket> for Box<dyn Connection> {
         Box::new(UdpConn::new(conn))
     }
 }
+
+impl ToConn for UdpSocket {
+    fn to_conn(self) -> Box<dyn Connection> {
+        self.into()
+    }
+}
+
+impl ToConn for UdpConn {
+    fn to_conn(self) -> Box<dyn Connection> {
+        Box::new(self)
+    }
+}
diff --git a/net/src/transports/unix.rs b/net/src/transports/unix.rs
index c546333..3867040 100644
--- a/net/src/transports/unix.rs
+++ b/net/src/transports/unix.rs
@@ -6,7 +6,12 @@ use smol::{
     net::unix::{UnixListener, UnixStream},
 };
 
-use crate::{connection::Connection, endpoint::Endpoint, listener::ConnListener, Error, Result};
+use crate::{
+    connection::{Connection, ToConn},
+    endpoint::Endpoint,
+    listener::{ConnListener, ToListener},
+    Error, Result,
+};
 
 /// Unix domain socket implementation of the [`Connection`] trait.
 pub struct UnixConn {
@@ -86,3 +91,21 @@ impl From<UnixListener> for Box<dyn ConnListener> {
         Box::new(listener)
     }
 }
+
+impl ToConn for UnixStream {
+    fn to_conn(self) -> Box<dyn Connection> {
+        self.into()
+    }
+}
+
+impl ToConn for UnixConn {
+    fn to_conn(self) -> Box<dyn Connection> {
+        Box::new(self)
+    }
+}
+
+impl ToListener for UnixListener {
+    fn to_listener(self) -> Box<dyn ConnListener> {
+        self.into()
+    }
+}