Class CancellationTokenSource

packages/foam-vscode/src/test/vscode-mock.ts:629–665

}

export class CancellationTokenSource {
  private _token: CancellationToken | undefined;
  private _emitter: EventEmitter<any> | undefined;
  private _isCancelled = false;

  get token(): CancellationToken {
    if (!this._token) {
      this._emitter = new EventEmitter<any>();
      this._token = {
        isCancellationRequested: this._isCancelled,
        onCancellationRequested: this._emitter.event,
      };
    }
    return this._token;
  }

  cancel(): void {
    if (!this._isCancelled) {
      this._isCancelled = true;
      if (this._emitter) {
        this._emitter.fire(undefined);
      }
      // Update token state
      if (this._token) {
        (this._token as any).isCancellationRequested = true;
      }
    }
  }

  dispose(): void {
    if (this._emitter) {
      this._emitter.dispose();
      this._emitter = undefined;
    }
    this._token = undefined;
  }
}

// ===== Progress =====