feat: moved connect module to legacy

Moved the `connect` module to the legacy namespace to make space for new
changes. Renamed legacy.rs -> client.rs and also moved to that
namespace.

Fixes: hyperium/hyper#3414

examples/client.rs

@@ -2,7 +2,7 @@ use std::env;
 
 use http_body_util::Empty;
 use hyper::Request;
-use hyper_util::client::{connect::HttpConnector, legacy::Client};
+use hyper_util::client::legacy::{connect::HttpConnector, Client};
 
 #[tokio::main(flavor = "current_thread")]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {

src/client/legacy.rs → src/client/legacy/client.rs

@@ -18,10 +18,10 @@ use hyper::rt::Timer;
 use hyper::{body::Body, Method, Request, Response, Uri, Version};
 use tracing::{debug, trace, warn};
 
+use super::super::pool::{self, Ver};
 #[cfg(feature = "tcp")]
 use super::connect::HttpConnector;
 use super::connect::{Alpn, Connect, Connected, Connection};
-use super::pool::{self, Ver};
 use crate::common::{lazy as hyper_lazy, Exec, Lazy, SyncWrapper};
 
 type BoxSendFuture = Pin<Box<dyn Future<Output = ()> + Send>>;

src/client/legacy/mod.rs

@@ -0,0 +1,6 @@
+#[cfg(any(feature = "http1", feature = "http2"))]
+mod client;
+#[cfg(any(feature = "http1", feature = "http2"))]
+pub use client::Client;
+
+pub mod connect;

src/client/mod.rs

@@ -1,8 +1,6 @@
 //! HTTP client utilities
 
-//mod client;
-pub mod connect;
-#[cfg(any(feature = "http1", feature = "http2"))]
+/// Legacy implementations of `connect` module and `Client`
 pub mod legacy;
 #[doc(hidden)]
 pub mod pool;