WIP

crates/workspace/src/dock.rs

@@ -823,6 +823,8 @@ mod tests {
     }
 
     impl<'a> UpdateView for DockTestContext<'a> {
+        type Output<S> = S;
+
         fn update_view<T, S>(
             &mut self,
             handle: &ViewHandle<T>,

crates/workspace/src/item.rs

@@ -467,7 +467,7 @@ impl<T: Item> ItemHandle for ViewHandle<T> {
                                                     workspace.project().clone(),
                                                     cx,
                                                 )
-                                            })
+                                            })?
                                             .await
                                             .log_err()?;
                                         Some(())