Switch to await this.ready;

Author: sean-mcmanus

Extension/src/LanguageServer/client.ts

@@ -1839,11 +1839,11 @@ export class DefaultClient implements Client {
         await this.languageClient.sendNotification(DidChangeTextEditorVisibleRangesNotification, params);
     }
 
-    public onDidChangeTextDocument(textDocumentChangeEvent: vscode.TextDocumentChangeEvent): void {
+    public async onDidChangeTextDocument(textDocumentChangeEvent: vscode.TextDocumentChangeEvent): Promise<void> {
+        await this.ready;
         if (util.isCpp(textDocumentChangeEvent.document)) {
             // If any file has changed, we need to abort the current rename operation
-            if (workspaceReferences !== undefined // Occurs when a document changes before cpptools starts.
-                && workspaceReferences.renamePending) {
+            if (workspaceReferences.renamePending) {
                 workspaceReferences.cancelCurrentReferenceRequest(refs.CancellationSender.User);
             }