Bump to v4.0.0.

lodash.mixin/index.js

@@ -1,16 +1,19 @@
 /**
- * lodash 3.0.4 (Custom Build) <https://lodash.com/>
- * Build: `lodash modern modularize exports="npm" -o ./`
- * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
+ * lodash 4.0.0 (Custom Build) <https://lodash.com/>
+ * Build: `lodash modularize exports="npm" -o ./`
+ * Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
  * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+ * Copyright 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
  * Available under MIT license <https://lodash.com/license>
  */
-var arrayCopy = require('lodash._arraycopy'),
-    baseFunctions = require('lodash._basefunctions'),
-    isFunction = require('lodash.isfunction'),
+var arrayEach = require('lodash._arrayeach'),
+    arrayFilter = require('lodash._arrayfilter'),
     keys = require('lodash.keys');
 
+/** `Object#toString` result references. */
+var funcTag = '[object Function]',
+    genTag = '[object GeneratorFunction]';
+
 /**
  * Appends the elements of `values` to `array`.
  *
@@ -30,6 +33,73 @@ function arrayPush(array, values) {
   return array;
 }
 
+/** Used for built-in method references. */
+var objectProto = global.Object.prototype;
+
+/**
+ * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * of values.
+ */
+var objectToString = objectProto.toString;
+
+/**
+ * The base implementation of `_.functions` which creates an array of
+ * `object` function property names filtered from those provided.
+ *
+ * @private
+ * @param {Object} object The object to inspect.
+ * @param {Array} props The property names to filter.
+ * @returns {Array} Returns the new array of filtered property names.
+ */
+function baseFunctions(object, props) {
+  return arrayFilter(props, function(key) {
+    return isFunction(object[key]);
+  });
+}
+
+/**
+ * Copies the values of `source` to `array`.
+ *
+ * @private
+ * @param {Array} source The array to copy values from.
+ * @param {Array} [array=[]] The array to copy values to.
+ * @returns {Array} Returns `array`.
+ */
+function copyArray(source, array) {
+  var index = -1,
+      length = source.length;
+
+  array || (array = Array(length));
+  while (++index < length) {
+    array[index] = source[index];
+  }
+  return array;
+}
+
+/**
+ * Checks if `value` is classified as a `Function` object.
+ *
+ * @static
+ * @memberOf _
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
+ * @example
+ *
+ * _.isFunction(_);
+ * // => true
+ *
+ * _.isFunction(/abc/);
+ * // => false
+ */
+function isFunction(value) {
+  // The use of `Object#toString` avoids issues with the `typeof` operator
+  // in Safari 8 which returns 'object' for typed array constructors, and
+  // PhantomJS 1.9 which returns 'function' for `NodeList` instances.
+  var tag = isObject(value) ? objectToString.call(value) : '';
+  return tag == funcTag || tag == genTag;
+}
+
 /**
  * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
  * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
@@ -47,12 +117,13 @@ function arrayPush(array, values) {
  * _.isObject([1, 2, 3]);
  * // => true
  *
- * _.isObject(1);
+ * _.isObject(_.noop);
+ * // => true
+ *
+ * _.isObject(null);
  * // => false
  */
 function isObject(value) {
-  // Avoid a V8 JIT bug in Chrome 19-20.
-  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
   var type = typeof value;
   return !!value && (type == 'object' || type == 'function');
 }
@@ -67,7 +138,7 @@ function isObject(value) {
  *
  * @static
  * @memberOf _
- * @category Utility
+ * @category Util
  * @param {Function|Object} [object=lodash] The destination object.
  * @param {Object} source The object of functions to add.
  * @param {Object} [options] The options object.
@@ -94,40 +165,31 @@ function isObject(value) {
  * // => ['e']
  */
 function mixin(object, source, options) {
-  var methodNames = baseFunctions(source, keys(source));
+  var props = keys(source),
+      methodNames = baseFunctions(source, props);
 
-  var chain = true,
-      index = -1,
-      isFunc = isFunction(object),
-      length = methodNames.length;
-
-  if (options === false) {
-    chain = false;
-  } else if (isObject(options) && 'chain' in options) {
-    chain = options.chain;
-  }
-  while (++index < length) {
-    var methodName = methodNames[index],
-        func = source[methodName];
+  var chain = (isObject(options) && 'chain' in options) ? options.chain : true,
+      isFunc = isFunction(object);
 
+  arrayEach(methodNames, function(methodName) {
+    var func = source[methodName];
     object[methodName] = func;
     if (isFunc) {
-      object.prototype[methodName] = (function(func) {
-        return function() {
-          var chainAll = this.__chain__;
-          if (chain || chainAll) {
-            var result = object(this.__wrapped__),
-                actions = result.__actions__ = arrayCopy(this.__actions__);
+      object.prototype[methodName] = function() {
+        var chainAll = this.__chain__;
+        if (chain || chainAll) {
+          var result = object(this.__wrapped__),
+              actions = result.__actions__ = copyArray(this.__actions__);
 
-            actions.push({ 'func': func, 'args': arguments, 'thisArg': object });
-            result.__chain__ = chainAll;
-            return result;
-          }
-          return func.apply(object, arrayPush([this.value()], arguments));
-        };
-      }(func));
+          actions.push({ 'func': func, 'args': arguments, 'thisArg': object });
+          result.__chain__ = chainAll;
+          return result;
+        }
+        return func.apply(object, arrayPush([this.value()], arguments));
+      };
     }
-  }
+  });
+
   return object;
 }