Angular ErrorHandler with plugins

error-handler-with-plugins.syntax-error.ts

@Injectable()
export class ErrorHandlerWithPlugins extends ErrorHandler {
  readonly #plugins = inject(errorHandlerPluginToken, { optional: true }) ?? [];

  override handleError(originalError: unknown): void {
    super.handleError(originalError);

    this.#plugins.forEach((plugin) => {
      try {
        plugin.handleError(originalError);
      } catch (pluginError: unknown) {
        setTimeout(() => this.#handlePluginError(plugin, pluginError), 0);
      }
    });
  }

  #handlePluginError(plugin: ErrorHandler, pluginError: unknown): void {
    this.#plugins
      .filter((otherPlugin) => otherPlugin !== plugin)
      .forEach((otherPlugin) => {
        try {
          otherPlugin.handleError(pluginError);
        } catch (_otherPluginError: unknown) {
          // Ignore error from other plugin
        } finally {
          // Log to console
          super.handleError(pluginError); // ❌ SyntaxError
        }
      });
  }
}

error-handler-with-plugins.ts

@Injectable()
export class ErrorHandlerWithPlugins extends ErrorHandler {
  readonly #plugins = inject(errorHandlerPluginToken, { optional: true }) ?? [];

  override handleError(originalError: unknown): void {
    super.handleError(originalError);

    this.#plugins.forEach((plugin) => {
      try {
        plugin.handleError(originalError);
      } catch (pluginError: unknown) {
        setTimeout(() => this.#handlePluginError(plugin, pluginError), 0);
      }
    });
  }

  protected baseHandleError(error: unknown): void {
    super.handleError(error); // ✅ Works
  }

  #handlePluginError(plugin: ErrorHandler, pluginError: unknown): void {
    this.#plugins
      .filter((otherPlugin) => otherPlugin !== plugin)
      .forEach((otherPlugin) => {
        try {
          otherPlugin.handleError(pluginError);
        } catch (_otherPluginError: unknown) {
          // Ignore error from other plugin
        } finally {
          // Log to console
          this.baseHandleError(pluginError);
        }
      });
  }
}