FM / thenify

/opt/canhelp/node_modules/thenify

Name	Size	Mode	Actions
History.md	317	0644	edit dl rm
index.js	1946	0644	edit dl rm
LICENSE	1121	0644	edit dl rm
package.json	752	0644	edit dl rm
README.md	3784	0644	edit dl rm

Edit: /opt/canhelp/node_modules/thenify/index.js (1946B)

var Promise = require('any-promise')
var assert = require('assert')

module.exports = thenify

/**
 * Turn async functions into promises
 *
 * @param {Function} fn
 * @return {Function}
 * @api public
 */

function thenify(fn, options) {
  assert(typeof fn === 'function')
  return createWrapper(fn, options)
}

/**
 * Turn async functions into promises and backward compatible with callback
 *
 * @param {Function} fn
 * @return {Function}
 * @api public
 */

thenify.withCallback = function (fn, options) {
  assert(typeof fn === 'function')
  options = options || {}
  options.withCallback = true
  return createWrapper(fn, options)
}

function createCallback(resolve, reject, multiArgs) {
  // default to true
  if (multiArgs === undefined) multiArgs = true
  return function(err, value) {
    if (err) return reject(err)
    var length = arguments.length

if (length <= 2 || !multiArgs) return resolve(value)

if (Array.isArray(multiArgs)) {
      var values = {}
      for (var i = 1; i < length; i++) values[multiArgs[i - 1]] = arguments[i]
      return resolve(values)
    }

var values = new Array(length - 1)
    for (var i = 1; i < length; ++i) values[i - 1] = arguments[i]
    resolve(values)
  }
}

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