feat(http): add Body::from(cow) for bytes and strings

raphaelcohn · raphaelcohn · commit 425ff71d75f4 · 2017-09-07T10:50:51.000+01:00
This change adds the ability to use Cow&lt;'static, [u8]&gt; and Cow&lt;'static, str&gt; for the body of a
HTTP request or response.
This makes it easier to create abstractions that serve static web pages, redirect messages and the
like.
diff --git a/src/http/body.rs b/src/http/body.rs
@@ -2,6 +2,7 @@ use bytes::Bytes;
 use futures::{Poll, Stream};
 use futures::sync::mpsc;
 use tokio_proto;
+use std::borrow::Cow;
 
 use http::Chunk;
 
@@ -94,6 +95,17 @@ impl From<&'static [u8]> for Body {
     }
 }
 
+impl From<Cow<'static, [u8]>> for Body {
+    #[inline]
+    fn from (cow: Cow<'static, [u8]>) -> Body {
+		if let Cow::Borrowed(value) = cow {
+			Body::from(value)
+		} else {
+			Body::from(cow.to_owned())
+		}
+    }
+}
+
 impl From<String> for Body {
     #[inline]
     fn from (s: String) -> Body {
@@ -108,6 +120,17 @@ impl From<&'static str> for Body {
     }
 }
 
+impl From<Cow<'static, str>> for Body {
+    #[inline]
+    fn from (cow: Cow<'static, str>) -> Body {
+		if let Cow::Borrowed(value) = cow {
+			Body::from(value)
+		} else {
+			Body::from(cow.to_owned())
+		}
+    }
+}
+
 impl From<Option<Body>> for Body {
     #[inline]
     fn from (body: Option<Body>) -> Body {
