Function dispose

packages/agent-core/src/di/lifecycle.ts:138–168

(
  arg: T | Iterable<T> | undefined,
)

  disposables: ReadonlyArray<T>,
): ReadonlyArray<T>;
export function dispose<T extends IDisposable>(
  arg: T | Iterable<T> | undefined,
): unknown {
  if (arg === undefined || arg === null) return arg;
  if (isIterable<T>(arg)) {
    const errors: unknown[] = [];
    for (const d of arg) {
      if (d) {
        try {
          d.dispose();
        } catch (error) {
          errors.push(error);
        }
      }
    }

    if (errors.length === 1) {
      throw errors[0];
    }
    if (errors.length > 1) {
      throw new AggregateError(
        errors,
        'Encountered errors while disposing of store',
      );
    }

    return Array.isArray(arg) ? [] : arg;
  }
  (arg).dispose();
  return arg;
}

function isIterable<T>(arg: unknown): arg is Iterable<T> {
  return (