check the capability before registering a handler (#1834)

vuejs · Sep 7, 2022 · 0ef9fa2 · 0ef9fa2
1 parent c1f4d3a
commit 0ef9fa2
Showing 1 changed file with 14 additions and 12 deletions.
diff --git a/packages/vue-language-server/src/commonServer.ts b/packages/vue-language-server/src/commonServer.ts
@@ -112,18 +112,20 @@ export function createLanguageServer(
 		fsHost?.ready(connection);
 		configHost?.ready();
 
-		connection.workspace.onDidChangeWorkspaceFolders(e => {
-
-			for (const folder of e.added) {
-				documentServiceHost?.add(URI.parse(folder.uri));
-				projects?.add(URI.parse(folder.uri));
-			}
-
-			for (const folder of e.removed) {
-				documentServiceHost?.remove(URI.parse(folder.uri));
-				projects?.remove(URI.parse(folder.uri));
-			}
-		});
+		if (params.capabilities.workspace?.workspaceFolders) {
+			connection.workspace.onDidChangeWorkspaceFolders(e => {
+
+				for (const folder of e.added) {
+					documentServiceHost?.add(URI.parse(folder.uri));
+					projects?.add(URI.parse(folder.uri));
+				}
+
+				for (const folder of e.removed) {
+					documentServiceHost?.remove(URI.parse(folder.uri));
+					projects?.remove(URI.parse(folder.uri));
+				}
+			});
+		}
 	});
 	connection.listen();
 }