ramda-adjunct/lib/dispatch.js

Ramda Adjunct is the most popular and most comprehensive set of utilities for use with Ramda, providing a variety of useful, well tested functions with excellent documentation.

"use strict";

exports.__esModule = true;
exports["default"] = void 0;

var _ramda = require("ramda");

var _isNotNil = _interopRequireDefault(require("./isNotNil"));

var _isNonEmptyArray = _interopRequireDefault(require("./isNonEmptyArray"));

var _stubUndefined = _interopRequireDefault(require("./stubUndefined"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }

function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }

function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }

function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }

var byArity = (0, _ramda.comparator)(function (a, b) {
  return a.length > b.length;
});
var getMaxArity = (0, _ramda.pipe)((0, _ramda.sort)(byArity), _ramda.head, (0, _ramda.prop)('length'));
var iteratorFn = (0, _ramda.curry)(function (args, accumulator, fn) {
  var result = fn.apply(void 0, _toConsumableArray(args));
  return (0, _isNotNil["default"])(result) ? (0, _ramda.reduced)(result) : accumulator;
});

var dispatch = function dispatch(functions) {
  var arity = getMaxArity(functions);
  return (0, _ramda.curryN)(arity, function () {
    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    return (0, _ramda.reduce)(iteratorFn(args), undefined, functions);
  });
};

var _default = (0, _ramda.ifElse)(_isNonEmptyArray["default"], dispatch, _stubUndefined["default"]);

exports["default"] = _default;