Function findMethodOnPrototypeChain

lib/internal/test_runner/mock/mock.js:999–1014

(instance, methodName)

}

function findMethodOnPrototypeChain(instance, methodName) {
  let host = instance;
  let descriptor;

  while (host !== null) {
    descriptor = ObjectGetOwnPropertyDescriptor(host, methodName);

    if (descriptor) {
      break;
    }

    host = ObjectGetPrototypeOf(host);
  }

  return descriptor;
}

function ensureNodeScheme(specifier) {
  if (!StringPrototypeStartsWith(specifier, 'node:')) {