Class EventEmitter

packages/foam-vscode/src/test/vscode-mock.ts:673–704

}

export class EventEmitter<T> {
  private listeners: ((e: T) => any)[] = [];

  get event(): Event<T> {
    return (listener: (e: T) => any, thisArg?: any) => {
      const boundListener = thisArg ? listener.bind(thisArg) : listener;
      this.listeners.push(boundListener);
      return {
        dispose: () => {
          const index = this.listeners.indexOf(boundListener);
          if (index >= 0) {
            this.listeners.splice(index, 1);
          }
        },
      };
    };
  }

  fire(data: T): void {
    this.listeners.forEach(listener => {
      try {
        listener(data);
      } catch (error) {
        console.error('Error in event listener:', error);
      }
    });
  }

  dispose(): void {
    this.listeners = [];
  }
}

// ===== Diagnostics =====