Function getConstructorOf

lib/internal/util.js:392–405

(obj)

}

function getConstructorOf(obj) {
  while (obj) {
    const descriptor = ObjectGetOwnPropertyDescriptor(obj, 'constructor');
    if (descriptor !== undefined &&
        typeof descriptor.value === 'function' &&
        descriptor.value.name !== '') {
      return descriptor.value;
    }

    obj = ObjectGetPrototypeOf(obj);
  }

  return null;
}

let cachedURL;
let cachedCWD;