Replace most 'extern crate' directives with 'use'.

  - See #480.

3 files changed, 22 insertions, 30 deletions

diff --git a/net/src/lib.rs b/net/src/lib.rs
index b339daf9..64b3e3e0 100644
--- a/net/src/lib.rs
+++ b/net/src/lib.rs
@@ -14,10 +14,8 @@
 //! [SKS keyserver]: https://www.sks-keyservers.net/overview-of-pools.php#pool_hkps
 //!
 //! ```no_run
-//! # extern crate tokio_core;
-//! # extern crate sequoia_openpgp as openpgp;
-//! # extern crate sequoia_core;
-//! # extern crate sequoia_net;
+//! # use tokio_core;
+//! # use sequoia_openpgp as openpgp;
 //! # use openpgp::KeyID;
 //! # use sequoia_core::Context;
 //! # use sequoia_net::{KeyServer, Result};
@@ -35,19 +33,16 @@
 
 #![warn(missing_docs)]
 
-extern crate sequoia_openpgp as openpgp;
-extern crate sequoia_core;
-
-extern crate futures;
-extern crate http;
-extern crate hyper;
-extern crate hyper_tls;
-extern crate native_tls;
-extern crate tokio_core;
-extern crate tokio_io;
-extern crate percent_encoding;
-extern crate url;
-extern crate zbase32;
+use sequoia_openpgp as openpgp;
+use sequoia_core;
+
+use futures;
+use http;
+use hyper;
+use hyper_tls;
+use native_tls;
+use percent_encoding;
+use url;
 
 use futures::{future, Future, Stream};
 use hyper::client::{ResponseFuture, HttpConnector};
diff --git a/net/src/wkd.rs b/net/src/wkd.rs
index 07f322bc..53ecdfb5 100644
--- a/net/src/wkd.rs
+++ b/net/src/wkd.rs
@@ -14,8 +14,6 @@
 
 // XXX: We might want to merge the 2 structs in the future and move the
 // functions to methods.
-extern crate tempfile;
-extern crate tokio_core;
 
 use std::collections::HashMap;
 use std::fmt;
@@ -29,6 +27,7 @@ use hyper_tls::HttpsConnector;
 use url;
 
 use crate::openpgp::{
+    self,
     Fingerprint,
     Cert,
 };
@@ -265,9 +264,7 @@ fn parse_body<S: AsRef<str>>(body: &[u8], email_address: S)
 /// # Example
 ///
 /// ```no_run
-/// extern crate tokio_core;
 /// use tokio_core::reactor::Core;
-/// extern crate sequoia_net;
 /// use sequoia_net::wkd;
 ///
 /// let email_address = "foo@bar.baz";
diff --git a/net/tests/hkp.rs b/net/tests/hkp.rs
index e095213d..ff41d9a8 100644
--- a/net/tests/hkp.rs
+++ b/net/tests/hkp.rs
@@ -1,9 +1,9 @@
-extern crate futures;
-extern crate http;
-extern crate hyper;
-extern crate rand;
-extern crate tokio_core;
-extern crate url;
+use futures;
+use http;
+use hyper;
+use rand;
+use tokio_core;
+use url;
 
 use futures::Stream;
 use futures::future::Future;
@@ -20,9 +20,9 @@ use std::net::{SocketAddr, IpAddr, Ipv4Addr};
 use std::thread;
 use tokio_core::reactor::Core;
 
-extern crate sequoia_openpgp as openpgp;
-extern crate sequoia_core;
-extern crate sequoia_net;
+use sequoia_openpgp as openpgp;
+use sequoia_core;
+use sequoia_net;
 
 use crate::openpgp::armor::Reader;
 use crate::openpgp::Cert;