actix-tls release candidate prep (#422)

actix-tls/src/connect/connection.rs

@@ -0,0 +1,54 @@
+use derive_more::{Deref, DerefMut};
+
+use super::Host;
+
+/// Wraps underlying I/O and the connection request that initiated it.
+#[derive(Debug, Deref, DerefMut)]
+pub struct Connection<R, IO> {
+    pub(crate) req: R,
+
+    #[deref]
+    #[deref_mut]
+    pub(crate) io: IO,
+}
+
+impl<R, IO> Connection<R, IO> {
+    /// Construct new `Connection` from request and IO parts.
+    pub(crate) fn new(req: R, io: IO) -> Self {
+        Self { req, io }
+    }
+}
+
+impl<R, IO> Connection<R, IO> {
+    /// Deconstructs into IO and request parts.
+    pub fn into_parts(self) -> (IO, R) {
+        (self.io, self.req)
+    }
+
+    /// Replaces underlying IO, returning old IO and new `Connection`.
+    pub fn replace_io<IO2>(self, io: IO2) -> (IO, Connection<R, IO2>) {
+        (self.io, Connection { io, req: self.req })
+    }
+
+    /// Returns a shared reference to the underlying IO.
+    pub fn io_ref(&self) -> &IO {
+        &self.io
+    }
+
+    /// Returns a mutable reference to the underlying IO.
+    pub fn io_mut(&mut self) -> &mut IO {
+        &mut self.io
+    }
+
+    /// Returns a reference to the connection request.
+    pub fn request(&self) -> &R {
+        &self.req
+    }
+}
+
+impl<R: Host, IO> Connection<R, IO> {
+    /// Returns hostname.
+    pub fn hostname(&self) -> &str {
+        self.req.hostname()
+    }
+}