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Avoid cloning symbols internally.

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John-David Dalton
2016-03-01 19:37:44 -08:00
parent 429be57b8a
commit deeaf27b54
1 changed files with 10 additions and 8 deletions
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18
lodash.js
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@@ -2327,13 +2327,14 @@
* @private * @private
* @param {*} value The value to clone. * @param {*} value The value to clone.
* @param {boolean} [isDeep] Specify a deep clone. * @param {boolean} [isDeep] Specify a deep clone.
* @param {boolean} [isFull] Specify a clone including symbols.
* @param {Function} [customizer] The function to customize cloning. * @param {Function} [customizer] The function to customize cloning.
* @param {string} [key] The key of `value`. * @param {string} [key] The key of `value`.
* @param {Object} [object] The parent object of `value`. * @param {Object} [object] The parent object of `value`.
* @param {Object} [stack] Tracks traversed objects and their clone counterparts. * @param {Object} [stack] Tracks traversed objects and their clone counterparts.
* @returns {*} Returns the cloned value. * @returns {*} Returns the cloned value.
*/ */
function baseClone(value, isDeep, customizer, key, object, stack) { function baseClone(value, isDeep, isFull, customizer, key, object, stack) {
var result; var result;
if (customizer) { if (customizer) {
result = object ? customizer(value, key, object, stack) : customizer(value); result = object ? customizer(value, key, object, stack) : customizer(value);
@@ -2363,7 +2364,8 @@
} }
result = initCloneObject(isFunc ? {} : value); result = initCloneObject(isFunc ? {} : value);
if (!isDeep) { if (!isDeep) {
return copySymbols(value, baseAssign(result, value)); result = baseAssign(result, value);
return isFull ? copySymbols(value, result) : result;
} }
} else { } else {
if (!cloneableTags[tag]) { if (!cloneableTags[tag]) {
@@ -2382,9 +2384,9 @@
// Recursively populate clone (susceptible to call stack limits). // Recursively populate clone (susceptible to call stack limits).
(isArr ? arrayEach : baseForOwn)(value, function(subValue, key) { (isArr ? arrayEach : baseForOwn)(value, function(subValue, key) {
assignValue(result, key, baseClone(subValue, isDeep, customizer, key, value, stack)); assignValue(result, key, baseClone(subValue, isDeep, isFull, customizer, key, value, stack));
}); });
return isArr ? result : copySymbols(value, result); return (isFull && !isArr) ? copySymbols(value, result) : result;
} }
/** /**
@@ -9466,7 +9468,7 @@
* // => true * // => true
*/ */
function clone(value) { function clone(value) {
return baseClone(value); return baseClone(value, false, true);
} }
/** /**
@@ -9499,7 +9501,7 @@
* // => 0 * // => 0
*/ */
function cloneWith(value, customizer) { function cloneWith(value, customizer) {
return baseClone(value, false, customizer); return baseClone(value, false, true, customizer);
} }
/** /**
@@ -9519,7 +9521,7 @@
* // => false * // => false
*/ */
function cloneDeep(value) { function cloneDeep(value) {
return baseClone(value, true); return baseClone(value, true, true);
} }
/** /**
@@ -9549,7 +9551,7 @@
* // => 20 * // => 20
*/ */
function cloneDeepWith(value, customizer) { function cloneDeepWith(value, customizer) {
return baseClone(value, true, customizer); return baseClone(value, true, true, customizer);
} }
/** /**