Function copyError

lib/internal/assert/assertion_error.js:51–70

(source)

  .add('partialDeepStrictEqual');

function copyError(source) {
  const target = ObjectAssign(
    { __proto__: ObjectGetPrototypeOf(source) },
    source,
  );
  ObjectDefineProperty(target, 'message', {
    __proto__: null,
    value: source.message,
  });
  if (ObjectPrototypeHasOwnProperty(source, 'cause')) {
    let { cause } = source;

    if (isError(cause)) {
      cause = copyError(cause);
    }

    ObjectDefineProperty(target, 'cause', { __proto__: null, value: cause });
  }
  return target;
}

function inspectValue(val) {
  // The util.inspect default values could be changed. This makes sure the