1var apply = require('./_apply'),
2    arrayMap = require('./_arrayMap'),
3    baseFlatten = require('./_baseFlatten'),
4    baseIteratee = require('./_baseIteratee'),
5    baseRest = require('./_baseRest'),
6    baseUnary = require('./_baseUnary'),
7    castRest = require('./_castRest'),
8    isArray = require('./isArray');
9
10/* Built-in method references for those with the same name as other `lodash` methods. */
11var nativeMin = Math.min;
12
13/**
14 * Creates a function that invokes `func` with its arguments transformed.
15 *
16 * @static
17 * @since 4.0.0
18 * @memberOf _
19 * @category Function
20 * @param {Function} func The function to wrap.
21 * @param {...(Function|Function[])} [transforms=[_.identity]]
22 *  The argument transforms.
23 * @returns {Function} Returns the new function.
24 * @example
25 *
26 * function doubled(n) {
27 *   return n * 2;
28 * }
29 *
30 * function square(n) {
31 *   return n * n;
32 * }
33 *
34 * var func = _.overArgs(function(x, y) {
35 *   return [x, y];
36 * }, [square, doubled]);
37 *
38 * func(9, 3);
39 * // => [81, 6]
40 *
41 * func(10, 5);
42 * // => [100, 10]
43 */
44var overArgs = castRest(function(func, transforms) {
45  transforms = (transforms.length == 1 && isArray(transforms[0]))
46    ? arrayMap(transforms[0], baseUnary(baseIteratee))
47    : arrayMap(baseFlatten(transforms, 1), baseUnary(baseIteratee));
48
49  var funcsLength = transforms.length;
50  return baseRest(function(args) {
51    var index = -1,
52        length = nativeMin(args.length, funcsLength);
53
54    while (++index < length) {
55      args[index] = transforms[index].call(this, args[index]);
56    }
57    return apply(func, this, args);
58  });
59});
60
61module.exports = overArgs;
62