Provide impl<T> From<Arc<T>> for Data<T> (#1509)

CHANGES.md

@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Added
+
+* Add option to create `Data<T>` from `Arc<T>` [#1509]
+
 ### Changed
 
 * Resources and Scopes can now access non-overridden data types set on App (or containing scopes) when setting their own data. [#1486]
@@ -11,7 +15,7 @@
 * Bump minimum supported Rust version to 1.40
 
 [#1485]: https://github.com/actix/actix-web/pull/1485
-
+[#1509]: https://github.com/actix/actix-web/pull/1509
 
 ## [3.0.0-alpha.2] - 2020-05-08
 

src/data.rs

@@ -103,6 +103,12 @@ impl<T> Clone for Data<T> {
     }
 }
 
+impl<T> From<Arc<T>> for Data<T> {
+    fn from(arc: Arc<T>) -> Self {
+        Data(arc)
+    }
+}
+
 impl<T: 'static> FromRequest for Data<T> {
     type Config = ();
     type Error = Error;
@@ -281,4 +287,11 @@ mod tests {
 
         assert_eq!(num.load(Ordering::SeqCst), 0);
     }
+
+    #[actix_rt::test]
+    async fn test_data_from_arc() {
+        let data_new = Data::new(String::from("test-123"));
+        let data_from_arc = Data::from(Arc::new(String::from("test-123")));
+        assert_eq!(data_new.0, data_from_arc.0)
+    }
 }