| var apply = require('./_apply'); |
| |
| /* Built-in method references for those with the same name as other `lodash` methods. */ |
| var nativeMax = Math.max; |
| |
| /** |
| * A specialized version of `baseRest` which transforms the rest array. |
| * |
| * @private |
| * @param {Function} func The function to apply a rest parameter to. |
| * @param {number} [start=func.length-1] The start position of the rest parameter. |
| * @param {Function} transform The rest array transform. |
| * @returns {Function} Returns the new function. |
| */ |
| function overRest(func, start, transform) { |
| start = nativeMax(start === undefined ? (func.length - 1) : start, 0); |
| return function() { |
| var args = arguments, |
| index = -1, |
| length = nativeMax(args.length - start, 0), |
| array = Array(length); |
| |
| while (++index < length) { |
| array[index] = args[start + index]; |
| } |
| index = -1; |
| var otherArgs = Array(start + 1); |
| while (++index < start) { |
| otherArgs[index] = args[index]; |
| } |
| otherArgs[start] = transform(array); |
| return apply(func, this, otherArgs); |
| }; |
| } |
| |
| module.exports = overRest; |