1var apply = require('./_apply'),
2    createCtor = require('./_createCtor'),
3    createHybrid = require('./_createHybrid'),
4    createRecurry = require('./_createRecurry'),
5    getHolder = require('./_getHolder'),
6    replaceHolders = require('./_replaceHolders'),
7    root = require('./_root');
8
9/**
10 * Creates a function that wraps `func` to enable currying.
11 *
12 * @private
13 * @param {Function} func The function to wrap.
14 * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
15 * @param {number} arity The arity of `func`.
16 * @returns {Function} Returns the new wrapped function.
17 */
18function createCurry(func, bitmask, arity) {
19  var Ctor = createCtor(func);
20
21  function wrapper() {
22    var length = arguments.length,
23        args = Array(length),
24        index = length,
25        placeholder = getHolder(wrapper);
26
27    while (index--) {
28      args[index] = arguments[index];
29    }
30    var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)
31      ? []
32      : replaceHolders(args, placeholder);
33
34    length -= holders.length;
35    if (length < arity) {
36      return createRecurry(
37        func, bitmask, createHybrid, wrapper.placeholder, undefined,
38        args, holders, undefined, undefined, arity - length);
39    }
40    var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
41    return apply(fn, this, args);
42  }
43  return wrapper;
44}
45
46module.exports = createCurry;
47