Add method doc.supports_language_server for better readability

helix-term/src/application.rs

@@ -702,7 +702,7 @@ impl Application {
                         let docs = self
                             .editor
                             .documents()
-                            .filter(|doc| doc.language_servers().any(|l| l.id() == server_id));
+                            .filter(|doc| doc.supports_language_server(server_id));
 
                         // trigger textDocument/didOpen for docs that are already open
                         for doc in docs {
@@ -969,10 +969,7 @@ impl Application {
                             .editor
                             .documents_mut()
                             .filter_map(|doc| {
-                                if doc
+                                if doc.supports_language_server(server_id) {
-                                    .language_servers()
-                                    .any(|server| server.id() == server_id)
-                                {
                                     doc.clear_diagnostics(server_id);
                                     doc.url()
                                 } else {

helix-view/src/document.rs

@@ -1456,6 +1456,10 @@ impl Document {
         })
     }
 
+    pub fn supports_language_server(&self, id: usize) -> bool {
+        self.language_servers().any(|l| l.id() == id)
+    }
+
     pub fn diff_handle(&self) -> Option<&DiffHandle> {
         self.diff_handle.as_ref()
     }