Guard.ts

async function* iteratableGuards(validators) {
  let currentValidator = 0
  let previousResult = null

  while (currentValidator < validators.length) {
    previousResult = yield await validators[currentValidator](previousResult)
    currentValidator++
  }
}

const iterate = async (iterator, result) => {
  const { value, done } = await iterator.next()

  if (done) return result

  result = [...result, value]

  iterate(iterator, result)
}

export const OrderedGuard = async (validators) => {
  const iteratableValidators = iteratableGuards(validators)

  return iterate(iteratableValidators, [])
}

export const RaceGuard = async (guards: any) => {
  try {
    const results = await Promise.all(guards.map((guard) => guard()))

    return results
  } catch (err) {
    Promise.reject(err)
  }
}