12345678910111213141516171819202122232425262728293031323334353637383940414243444546
import pipeP from './pipeP';import reverse from './reverse';

/** * Performs right-to-left composition of one or more Promise-returning * functions. The rightmost function may have any arity; the remaining * functions must be unary. * * @func * @memberOf R * @since v0.10.0 * @category Function * @sig ((y -> Promise z), (x -> Promise y), ..., (a -> Promise b)) -> (a -> Promise z) * @param {...Function} functions The functions to compose * @return {Function} * @see R.pipeP * @deprecated since v0.26.0 * @example * *      const db = { *        users: { *          JOE: { *            name: 'Joe', *            followers: ['STEVE', 'SUZY'] *          } *        } *      } * *      // We'll pretend to do a db lookup which returns a promise *      const lookupUser = (userId) => Promise.resolve(db.users[userId]) *      const lookupFollowers = (user) => Promise.resolve(user.followers) *      lookupUser('JOE').then(lookupFollowers) * *      //  followersForUser :: String -> Promise [UserId] *      const followersForUser = R.composeP(lookupFollowers, lookupUser); *      followersForUser('JOE').then(followers => console.log('Followers:', followers)) *      // Followers: ["STEVE","SUZY"] */export default function composeP() {  if (arguments.length === 0) {    throw new Error('composeP requires at least one argument');  }  return pipeP.apply(this, reverse(arguments));}