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Add support for deep clone via _.clone(object, true) back.

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Former-commit-id: cc9b6bb81848b6a98d6f413485845e2e0407e3ac
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John-David Dalton
2013-01-27 02:38:43 -08:00
parent 23c3ba6ad7
commit 3cf4607870
5 changed files with 131 additions and 123 deletions
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30
lodash.js
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@@ -1014,8 +1014,8 @@
* @category Objects
* @param {Object} object The destination object.
* @param {Object} [source1, source2, ...] The source objects.
* @param- {Object} [guard] Internally used to allow this method to work with
* `_.reduce` without using its callback's `key and `object` arguments as sources.
* @param- {Object} [guard] Internally used to allow working with `_.reduce`
* without using its callback's `key and `object` arguments as sources.
* @returns {Object} Returns the destination object.
* @example
*
@@ -1025,13 +1025,16 @@
var assign = createIterator(assignIteratorOptions);
/**
* Creates a shallow clone of `value`. Nested objects will be assigned by reference.
* Creates a clone of `value`. If `deep` is `true`, nested objects will also
* be cloned, otherwise they will be assigned by reference.
*
* @static
* @memberOf _
* @category Objects
* @param {Mixed} value The value to clone.
* @param- {Object} [deepIndicator] Internally used to indicate performing a deep clone.
* @param {Boolean} deep A flag to indicate a deep clone.
* @param- {Object} [guard] Internally used to allow working with "Collections"
* methods without using their `callback` argument, `index`, for `deep`.
* @param- {Array} [stackA=[]] Internally used to track traversed source objects.
* @param- {Array} [stackB=[]] Internally used to associate clones with their source counterparts.
* @returns {Mixed} Returns the cloned `value`.
@@ -1046,13 +1049,12 @@
* shallow[0] === stooges[0];
* // => true
*
* shallow == stooges;
* var deep = _.clone(stooges, true);
* deep[0] === stooges[0];
* // => false
*/
function clone(value, deepIndicator, stackA, stackB) {
// allows working with "Collections" methods without using their `callback`
// arguments, `index|key` and `collection`
deepIndicator = deepIndicator == indicatorObject;
function clone(value, deep, guard, stackA, stackB) {
deep = !guard && deep;
// inspect [[Class]]
var isObj = isObject(value);
@@ -1064,7 +1066,7 @@
var isArr = isArray(value);
}
// shallow clone
if (!isObj || !deepIndicator) {
if (!isObj || !deep) {
return isObj
? (isArr ? slice(value) : assign({}, value))
: value;
@@ -1102,7 +1104,7 @@
// recursively populate clone (susceptible to call stack limits)
(isArr ? forEach : forOwn)(value, function(objValue, key) {
result[key] = clone(objValue, indicatorObject, stackA, stackB);
result[key] = clone(objValue, deep, null, stackA, stackB);
});
// add array properties assigned by `RegExp#exec`
@@ -1142,7 +1144,7 @@
* // => false
*/
function cloneDeep(value) {
return clone(value, indicatorObject);
return clone(value, true);
}
/**
@@ -1156,8 +1158,8 @@
* @category Objects
* @param {Object} object The destination object.
* @param {Object} [source1, source2, ...] The source objects.
* @param- {Object} [guard] Internally used to allow this method to work with
* `_.reduce` without using its callback's `key` and `object` arguments as sources.
* @param- {Object} [guard] Internally used to allow working with `_.reduce`
* without using its callback's `key` and `object` arguments as sources.
* @returns {Object} Returns the destination object.
* @example
*