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No longer compile _.assign, _.defaults, or _.forOwn.

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This commit is contained in:
John-David Dalton
2013-12-13 09:11:58 -08:00
parent 7fcbc3c003
commit 60a1374fb4
7 changed files with 321 additions and 264 deletions
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102
dist/lodash.compat.js vendored
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@@ -926,7 +926,7 @@
var conditions = []; if (support.enumPrototypes) { conditions.push('!(skipProto && index == "prototype")'); } if (support.enumErrorProps) { conditions.push('!(skipErrorProps && (index == "message" || index == "name"))'); }
if (obj.useHas && obj.keys) {
__p += '\n var ownIndex = -1,\n ownProps = objectTypes[typeof iterable] && keys(iterable),\n length = ownProps ? ownProps.length : 0;\n\n while (++ownIndex < length) {\n index = ownProps[ownIndex];\n';
__p += '\n var ownIndex = -1,\n ownProps = keys(iterable),\n length = ownProps.length;\n\n while (++ownIndex < length) {\n index = ownProps[ownIndex];\n';
if (conditions.length) {
__p += ' if (' +
(conditions.join(' && ')) +
@@ -1984,27 +1984,6 @@
'loop': 'if (callback(iterable[index], index, collection) === false) return result'
};
/** Reusable iterator options for `assign` and `defaults` */
var defaultsIteratorOptions = {
'args': 'object, source, guard',
'top':
'var args = arguments,\n' +
' argsIndex = 0,\n' +
" argsLength = typeof guard == 'number' ? 2 : args.length;\n" +
'while (++argsIndex < argsLength) {\n' +
' iterable = args[argsIndex];\n' +
' if (iterable && objectTypes[typeof iterable]) {',
'keys': keys,
'loop': "if (typeof result[index] == 'undefined') result[index] = iterable[index]",
'bottom': ' }\n}'
};
/** Reusable iterator options for `forIn` and `forOwn` */
var forOwnIteratorOptions = {
'top': 'if (!objectTypes[typeof iterable]) return result;\n' + eachIteratorOptions.top,
'array': false
};
/**
* Used to convert characters to HTML entities:
*
@@ -2076,18 +2055,31 @@
* defaults(object, { 'name': 'fred', 'employer': 'slate' });
* // => { 'name': 'barney', 'employer': 'slate' }
*/
var assign = createIterator(defaultsIteratorOptions, {
'top':
defaultsIteratorOptions.top.replace(';',
';\n' +
"if (argsLength > 3 && typeof args[argsLength - 2] == 'function') {\n" +
' var callback = baseCreateCallback(args[--argsLength - 1], args[argsLength--], 2);\n' +
"} else if (argsLength > 2 && typeof args[argsLength - 1] == 'function') {\n" +
' callback = args[--argsLength];\n' +
'}'
),
'loop': 'result[index] = callback ? callback(result[index], iterable[index]) : iterable[index]'
});
function assign(object, source, guard) {
var args = arguments,
argsIndex = 0,
argsLength = typeof guard == 'number' ? 2 : args.length;
if (argsLength > 3 && typeof args[argsLength - 2] == 'function') {
var callback = baseCreateCallback(args[--argsLength - 1], args[argsLength--], 2);
} else if (argsLength > 2 && typeof args[argsLength - 1] == 'function') {
callback = args[--argsLength];
}
while (++argsIndex < argsLength) {
source = args[argsIndex];
if (isObject(source)) {
var index = -1,
props = keys(source),
length = props.length;
while (++index < length) {
var key = props[index];
object[key] = callback ? callback(object[key], source[key]) : source[key];
}
}
}
return object;
}
/**
* Creates a clone of `value`. If `isDeep` is `true` nested objects will also
@@ -2241,7 +2233,28 @@
* _.defaults(object, { 'name': 'fred', 'employer': 'slate' });
* // => { 'name': 'barney', 'employer': 'slate' }
*/
var defaults = createIterator(defaultsIteratorOptions);
function defaults(object, source, guard) {
var args = arguments,
argsIndex = 0,
argsLength = typeof guard == 'number' ? 2 : args.length;
while (++argsIndex < argsLength) {
source = args[argsIndex];
if (isObject(source)) {
var index = -1,
props = keys(source),
length = props.length;
while (++index < length) {
var key = props[index];
if (typeof object[key] == 'undefined') {
object[key] = source[key];
}
}
}
}
return object;
}
/**
* This method is like `_.findIndex` except that it returns the key of the
@@ -2380,7 +2393,9 @@
* });
* // => logs 'x', 'y', and 'move' (property order is not guaranteed across environments)
*/
var forIn = createIterator(eachIteratorOptions, forOwnIteratorOptions, {
var forIn = createIterator(eachIteratorOptions, {
'top': 'if (!objectTypes[typeof iterable]) return result;\n' + eachIteratorOptions.top,
'array': false,
'useHas': false
});
@@ -2450,7 +2465,20 @@
* });
* // => logs '0', '1', and 'length' (property order is not guaranteed across environments)
*/
var forOwn = createIterator(eachIteratorOptions, forOwnIteratorOptions);
function forOwn(object, callback, thisArg) {
var index = -1,
props = keys(object),
length = props.length;
callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3);
while (++index < length) {
var key = props[index];
if (callback(object[key], key, object) === false) {
break;
}
}
return object;
}
/**
* This method is like `_.forOwn` except that it iterates over elements