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If _.cloneDeep callback result is not undefined then return the result instead of going deeper.

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Former-commit-id: 6a0588dbe158211061ec88badf4d4e3b89b02aa5
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John-David Dalton
2013-03-01 00:36:19 -08:00
parent af87e6ef62
commit aa0c34ba1c
1 changed files with 17 additions and 19 deletions
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36
lodash.js
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@@ -1175,10 +1175,10 @@
callback = typeof thisArg == 'undefined' ? callback : createCallback(callback, thisArg, 1); callback = typeof thisArg == 'undefined' ? callback : createCallback(callback, thisArg, 1);
result = callback(result); result = callback(result);
var done = typeof result != 'undefined'; if (typeof result != 'undefined') {
if (!done) { return result;
result = value;
} }
result = value;
} }
// inspect [[Class]] // inspect [[Class]]
var isObj = isObject(result); var isObj = isObject(result);
@@ -1191,7 +1191,7 @@
} }
// shallow clone // shallow clone
if (!isObj || !deep) { if (!isObj || !deep) {
return isObj && !done return isObj
? (isArr ? slice(result) : assign({}, result)) ? (isArr ? slice(result) : assign({}, result))
: result; : result;
} }
@@ -1199,14 +1199,14 @@
switch (className) { switch (className) {
case boolClass: case boolClass:
case dateClass: case dateClass:
return done ? result : new ctor(+result); return new ctor(+result);
case numberClass: case numberClass:
case stringClass: case stringClass:
return done ? result : new ctor(result); return new ctor(result);
case regexpClass: case regexpClass:
return done ? result : ctor(result.source, reFlags.exec(result)); return ctor(result.source, reFlags.exec(result));
} }
// check for circular references and return corresponding clone // check for circular references and return corresponding clone
stackA || (stackA = []); stackA || (stackA = []);
@@ -1219,17 +1219,15 @@
} }
} }
// init cloned object // init cloned object
if (!done) { result = isArr ? ctor(result.length) : {};
result = isArr ? ctor(result.length) : {};
// add array properties assigned by `RegExp#exec` // add array properties assigned by `RegExp#exec`
if (isArr) { if (isArr) {
if (hasOwnProperty.call(value, 'index')) { if (hasOwnProperty.call(value, 'index')) {
result.index = value.index; result.index = value.index;
} }
if (hasOwnProperty.call(value, 'input')) { if (hasOwnProperty.call(value, 'input')) {
result.input = value.input; result.input = value.input;
}
} }
} }
// add the source value to the stack of traversed objects // add the source value to the stack of traversed objects
@@ -1238,7 +1236,7 @@
stackB.push(result); stackB.push(result);
// recursively populate clone (susceptible to call stack limits) // recursively populate clone (susceptible to call stack limits)
(isArr ? forEach : forOwn)(done ? result : value, function(objValue, key) { (isArr ? forEach : forOwn)(value, function(objValue, key) {
result[key] = clone(objValue, deep, callback, undefined, stackA, stackB); result[key] = clone(objValue, deep, callback, undefined, stackA, stackB);
}); });
@@ -1280,7 +1278,7 @@
* }; * };
* *
* var clone = _.cloneDeep(view, function(value) { * var clone = _.cloneDeep(view, function(value) {
* return _.isElement(value) ? value.cloneNode(true) : value; * return _.isElement(value) ? value.cloneNode(true) : undefined;
* }); * });
* *
* clone.node == view.node; * clone.node == view.node;