git.r.bdr.sh - rbdr/dotfiles/blob - atom/packages/vim-mode/node_modules/grim/node_modules/emissary/node_modules/es6-weak-map/node_modules/es5-ext/function/#/curry.js

   1 'use strict';
   2
   3 var toPosInt     = require('../../number/to-pos-integer')
   4   , callable     = require('../../object/valid-callable')
   5   , defineLength = require('../_define-length')
   6
   7   , slice = Array.prototype.slice, apply = Function.prototype.apply
   8   , curry;
   9
  10 curry = function self(fn, length, preArgs) {
  11         return defineLength(function () {
  12                 var args = preArgs ?
  13                                 preArgs.concat(slice.call(arguments, 0, length - preArgs.length)) :
  14                                 slice.call(arguments, 0, length);
  15                 return (args.length === length) ? apply.call(fn, this, args) :
  16                                 self(fn, length, args);
  17         }, preArgs ? (length - preArgs.length) : length);
  18 };
  19
  20 module.exports = function (/*length*/) {
  21         var length = arguments[0];
  22         return curry(callable(this),
  23                 isNaN(length) ? toPosInt(this.length) : toPosInt(length));
  24 };