Function deepFreeze

packages/core/src/utils/funcs.ts:130–146

(o: T)

 * @internal please do not use.
 */
export function deepFreeze<T>(o: T): T {
  if (!isObject(o)) {
    return o;
  }

  if (Array.isArray(o)) {
    (o as any).forEach(v => deepFreeze(v));
  } else if (isDict(o)) {
    Object.keys(o).forEach(k => deepFreeze(o[k]));
  }

  try {
    return Object.freeze(o);
  } catch (e) {
    return o;
  }
}

/**
 * @internal please do not use.