import {clone,freeze} from './values.ts';

// Private provenance for a fresh, recursively frozen JSON clone. A caller can
// request a detached copy, but cannot grant this fact to an existing object.
const detached=new WeakSet<object>();
export function detachJsonData<T>(input:T):T {
  const value=freeze(clone(input));
  if(value&&typeof value==='object')detached.add(value);
  return value;
}
export const hasDetachedJsonData=(value:object)=>detached.has(value);