Saner autocomplete feature (#1054)

* Add autocompletion and documentation display (#2)

Add autocompletion and documentation display for builtins

* Integrate code autocompletion

* Bump js-slang version, handle editor prepend

* Comment

* Saner autocomplete behaviour

Co-authored-by: martin-henz <henz@comp.nus.edu.sg>

Author: tuesmiddt

src/sagas/workspaces.ts

@@ -124,13 +124,18 @@ export default function* workspaceSaga(): SagaIterator {
       autocompleteCode = prepend + '\n' + editorValue;
     }
 
-    const editorNames: any = yield call(
+    const [editorNames, displaySuggestions] = yield call(
       getNames,
       autocompleteCode,
       action.payload.row + prependLength,
       action.payload.column
     );
 
+    if (!displaySuggestions) {
+      yield call(action.payload.callback);
+      return;
+    }
+
     const editorSuggestions = editorNames.map((name: any) => ({
       caption: name.name,
       value: name.name,