WIP

Author: bwindels

src/utils/ErrorBoundary.ts

@@ -0,0 +1,38 @@
+/*
+Copyright 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import {ObservableValue, BaseObservableValue} from "../observable/ObservableValue";
+
+export class ErrorBoundary {
+    constructor(private readonly errorCallback: (Error) => void) {}
+
+    try<T>(callback: () => T): T | undefined;
+    try<T>(callback: () => Promise<T>): Promise<T | undefined> | undefined {
+        try {
+            let result: T | Promise<T | undefined> = callback();
+            if (result instanceof Promise) {
+                result = result.catch(err => {
+                    this.errorCallback(err);
+                    return undefined;
+                });
+            }
+            return result;
+        } catch (err) {
+            this.errorCallback(err);
+            return undefined;
+        }
+    }
+}