| var baseMatches = require('./baseMatches'), |
| baseMatchesProperty = require('./baseMatchesProperty'), |
| bindCallback = require('./bindCallback'), |
| identity = require('../utility/identity'), |
| property = require('../utility/property'); |
| |
| /** |
| * The base implementation of `_.callback` which supports specifying the |
| * number of arguments to provide to `func`. |
| * |
| * @private |
| * @param {*} [func=_.identity] The value to convert to a callback. |
| * @param {*} [thisArg] The `this` binding of `func`. |
| * @param {number} [argCount] The number of arguments to provide to `func`. |
| * @returns {Function} Returns the callback. |
| */ |
| function baseCallback(func, thisArg, argCount) { |
| var type = typeof func; |
| if (type == 'function') { |
| return thisArg === undefined |
| ? func |
| : bindCallback(func, thisArg, argCount); |
| } |
| if (func == null) { |
| return identity; |
| } |
| if (type == 'object') { |
| return baseMatches(func); |
| } |
| return thisArg === undefined |
| ? property(func) |
| : baseMatchesProperty(func, thisArg); |
| } |
| |
| module.exports = baseCallback; |