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Replace arrayCopy and baseCopy with copyArray, copyObject, and copyObjectWith.

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This commit is contained in:
John-David Dalton
2015-07-09 19:37:23 -07:00
parent 13e5d77041
commit 2586129dcd
1 changed files with 89 additions and 59 deletions
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148
lodash.src.js
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@@ -1164,12 +1164,12 @@
*/
function lazyClone() {
var result = new LazyWrapper(this.__wrapped__);
result.__actions__ = arrayCopy(this.__actions__);
result.__actions__ = copyArray(this.__actions__);
result.__dir__ = this.__dir__;
result.__filtered__ = this.__filtered__;
result.__iteratees__ = arrayCopy(this.__iteratees__);
result.__iteratees__ = copyArray(this.__iteratees__);
result.__takeCount__ = this.__takeCount__;
result.__views__ = arrayCopy(this.__views__);
result.__views__ = copyArray(this.__views__);
return result;
}
@@ -1397,25 +1397,6 @@
return result;
}
/**
* 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 arrayCopy(source, array) {
var index = -1,
length = source.length;
array || (array = Array(length));
while (++index < length) {
array[index] = source[index];
}
return array;
}
/**
* A specialized version of `_.forEach` for arrays without support for callback
* shorthands and `this` binding.
@@ -1768,30 +1749,8 @@
}
/**
* Copies properties of `source` to `object`.
*
* @private
* @param {Object} source The object to copy properties from.
* @param {Array} props The property names to copy.
* @param {Object} [object={}] The object to copy properties to.
* @returns {Object} Returns `object`.
*/
function baseCopy(source, props, object) {
object || (object = {});
var index = -1,
length = props.length;
while (++index < length) {
var key = props[index];
object[key] = source[key];
}
return object;
}
/**
* The base implementation of `_.clone` without support for argument juggling
* and `this` binding `customizer` functions.
* The base implementation of `_.clone` and `_.cloneDeep` which tracks
* traversed objects.
*
* @private
* @param {*} value The value to clone.
@@ -1818,7 +1777,7 @@
if (isArr) {
result = initCloneArray(value);
if (!isDeep) {
return arrayCopy(value, result);
return copyArray(value, result);
}
} else {
var tag = objToString.call(value),
@@ -2491,7 +2450,7 @@
if (isArrayLike(srcValue) && (isArray(srcValue) || isTypedArray(srcValue))) {
result = isArray(value)
? value
: (isArrayLike(value) ? arrayCopy(value) : []);
: (isArrayLike(value) ? copyArray(value) : []);
}
else if (isPlainObject(srcValue) || isArguments(srcValue)) {
result = isArguments(value)
@@ -2985,6 +2944,77 @@
return result;
}
/**
* 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;
}
/**
* Copies properties of `source` to `object`.
*
* @private
* @param {Object} source The object to copy properties from.
* @param {Array} props The property names to copy.
* @param {Object} [object={}] The object to copy properties to.
* @returns {Object} Returns `object`.
*/
function copyObject(source, props, object) {
object || (object = {});
var index = -1,
length = props.length;
while (++index < length) {
var key = props[index];
object[key] = source[key];
}
return object;
}
/**
* This function is like `copyObject` except that it accepts a function to
* customize copied values.
*
* @private
* @param {Object} source The object to copy properties from.
* @param {Array} props The property names to copy.
* @param {Function} customizer The function to customize copied values.
* @param {Object} [object={}] The object to copy properties to.
* @returns {Object} Returns `object`.
*/
function copyObjectWith(source, props, customizer, object) {
object || (object = {});
var index = -1,
length = props.length;
while (++index < length) {
var key = props[index],
value = object[key],
result = customizer(value, source[key], key, object, source);
if ((result === result ? (result !== value) : (value === value)) ||
(value === undefined && !(key in object))) {
object[key] = result;
}
}
return object;
}
/**
* Creates a `_.countBy`, `_.groupBy`, `_.indexBy`, or `_.partition` function.
*
@@ -3300,7 +3330,7 @@
length -= argsHolders.length;
if (length < arity) {
var newArgPos = argPos ? arrayCopy(argPos) : undefined,
var newArgPos = argPos ? copyArray(argPos) : undefined,
newArity = nativeMax(arity - length, 0),
newsHolders = isCurry ? argsHolders : undefined,
newHoldersRight = isCurry ? undefined : argsHolders,
@@ -3453,7 +3483,7 @@
bitmask &= ~(PARTIAL_FLAG | PARTIAL_RIGHT_FLAG);
partials = holders = undefined;
}
length -= (holders ? holders.length : 0);
length -= holders ? holders.length : 0;
if (bitmask & PARTIAL_RIGHT_FLAG) {
var partialsRight = partials,
holdersRight = holders;
@@ -4011,20 +4041,20 @@
var value = source[3];
if (value) {
var partials = data[3];
data[3] = partials ? composeArgs(partials, value, source[4]) : arrayCopy(value);
data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : arrayCopy(source[4]);
data[3] = partials ? composeArgs(partials, value, source[4]) : copyArray(value);
data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : copyArray(source[4]);
}
// Compose partial right arguments.
value = source[5];
if (value) {
partials = data[5];
data[5] = partials ? composeArgsRight(partials, value, source[6]) : arrayCopy(value);
data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : arrayCopy(source[6]);
data[5] = partials ? composeArgsRight(partials, value, source[6]) : copyArray(value);
data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : copyArray(source[6]);
}
// Use source `argPos` if available.
value = source[7];
if (value) {
data[7] = arrayCopy(value);
data[7] = copyArray(value);
}
// Use source `ary` if it's smaller.
if (srcBitmask & ARY_FLAG) {
@@ -4110,7 +4140,7 @@
function reorder(array, indexes) {
var arrLength = array.length,
length = nativeMin(indexes.length, arrLength),
oldArray = arrayCopy(array);
oldArray = copyArray(array);
while (length--) {
var index = indexes[length];
@@ -4260,7 +4290,7 @@
function wrapperClone(wrapper) {
return wrapper instanceof LazyWrapper
? wrapper.clone()
: new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__, arrayCopy(wrapper.__actions__));
: new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__, copyArray(wrapper.__actions__));
}
/*------------------------------------------------------------------------*/
@@ -8528,7 +8558,7 @@
}
return (lodash.support.unindexedChars && isString(value))
? value.split('')
: arrayCopy(value);
: copyArray(value);
}
/**
@@ -8555,7 +8585,7 @@
* // => { 'a': 1, 'b': 2, 'c': 3 }
*/
function toPlainObject(value) {
return baseCopy(value, keysIn(value));
return copyObject(value, keysIn(value));
}
/*------------------------------------------------------------------------*/