Simplify code a bit.

helix-term/src/commands.rs

@@ -847,25 +847,21 @@ pub fn exit_select_mode(cx: &mut Context) {
 }
 
 pub fn goto_definition(cx: &mut Context) {
-    let language_server = cx
-        .editor
-        .language_servers
-        .get("source.rust", &cx.executor)
-        .unwrap();
-    use log::info;
-
     let doc = cx.doc();
 
+    let language_server = match doc.language_server.as_ref() {
+        Some(language_server) => language_server,
+        None => return,
+    };
+
     // TODO: blocking here is not ideal
     let pos = helix_lsp::util::pos_to_lsp_pos(doc.text().slice(..), doc.selection().cursor());
 
     // TODO: handle fails
-    let res = smol::block_on(language_server.goto_definition(cx.doc().identifier(), pos))
-        .unwrap_or_default();
-
-    println!("{:?}", res);
+    let res =
+        smol::block_on(language_server.goto_definition(doc.identifier(), pos)).unwrap_or_default();
 
-    cx.doc().mode = Mode::Normal;
+    doc.mode = Mode::Normal;
 }
 
 // NOTE: Transactions in this module get appended to history when we switch back to normal mode.