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							74 lines
						
					
					
						
							2.2 KiB
						
					
					
				
			
		
		
	
	
							74 lines
						
					
					
						
							2.2 KiB
						
					
					
				var arrayEach = require('./_arrayEach'), | 
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    arrayPush = require('./_arrayPush'), | 
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    baseFunctions = require('./_baseFunctions'), | 
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    copyArray = require('./_copyArray'), | 
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    isFunction = require('./isFunction'), | 
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    isObject = require('./isObject'), | 
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    keys = require('./keys'); | 
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 | 
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/** | 
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 * Adds all own enumerable string keyed function properties of a source | 
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 * object to the destination object. If `object` is a function, then methods | 
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 * are added to its prototype as well. | 
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 * | 
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 * **Note:** Use `_.runInContext` to create a pristine `lodash` function to | 
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 * avoid conflicts caused by modifying the original. | 
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 * | 
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 * @static | 
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 * @since 0.1.0 | 
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 * @memberOf _ | 
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 * @category Util | 
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 * @param {Function|Object} [object=lodash] The destination object. | 
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 * @param {Object} source The object of functions to add. | 
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 * @param {Object} [options={}] The options object. | 
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 * @param {boolean} [options.chain=true] Specify whether mixins are chainable. | 
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 * @returns {Function|Object} Returns `object`. | 
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 * @example | 
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 * | 
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 * function vowels(string) { | 
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 *   return _.filter(string, function(v) { | 
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 *     return /[aeiou]/i.test(v); | 
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 *   }); | 
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 * } | 
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 * | 
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 * _.mixin({ 'vowels': vowels }); | 
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 * _.vowels('fred'); | 
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 * // => ['e'] | 
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 * | 
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 * _('fred').vowels().value(); | 
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 * // => ['e'] | 
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 * | 
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 * _.mixin({ 'vowels': vowels }, { 'chain': false }); | 
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 * _('fred').vowels(); | 
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 * // => ['e'] | 
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 */ | 
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function mixin(object, source, options) { | 
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  var props = keys(source), | 
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      methodNames = baseFunctions(source, props); | 
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 | 
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  var chain = !(isObject(options) && 'chain' in options) || !!options.chain, | 
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      isFunc = isFunction(object); | 
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 | 
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  arrayEach(methodNames, function(methodName) { | 
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    var func = source[methodName]; | 
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    object[methodName] = func; | 
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    if (isFunc) { | 
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      object.prototype[methodName] = function() { | 
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        var chainAll = this.__chain__; | 
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        if (chain || chainAll) { | 
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          var result = object(this.__wrapped__), | 
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              actions = result.__actions__ = copyArray(this.__actions__); | 
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 | 
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          actions.push({ 'func': func, 'args': arguments, 'thisArg': object }); | 
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          result.__chain__ = chainAll; | 
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          return result; | 
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        } | 
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        return func.apply(object, arrayPush([this.value()], arguments)); | 
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      }; | 
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    } | 
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  }); | 
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 | 
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  return object; | 
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} | 
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 | 
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module.exports = mixin;
 | 
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 |