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Cleanup code and rework the pre-compile step.

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Former-commit-id: cb62236ee0396e5e08defcbfee526265f9cf042e
This commit is contained in:
John-David Dalton
2012-05-08 12:15:01 -04:00
parent 4c29fbb36d
commit 5c82104d7b
4 changed files with 228 additions and 188 deletions
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70
lodash.js
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@@ -102,8 +102,8 @@
/*--------------------------------------------------------------------------*/
/** The template used to create iteration functions */
var iterationTemplate = template(
/** The template used to create iterator functions */
var iteratorTemplate = template(
// assign the `result` variable an initial value
'var index, result<% if (init) { %> = <%= init %><% } %>;\n' +
// add code to exit early or do so if the first argument is falsey
@@ -175,14 +175,14 @@
'interpolate': reInterpolateDelimiter
});
/** Reusable template data for `_.every` */
var everyFactoryOptions = {
/** Reusable iterator options for `_.every` */
var everyIteratorOptions = {
'init': 'true',
'inLoop': 'if (!callback(collection[index], index, collection)) return !result'
};
/** Reusable template data for `_.extend` */
var extendFactoryOptions = {
/** Reusable iterator options for `_.extend` */
var extendIteratorOptions = {
'args': 'object',
'init': 'object',
'top':
@@ -194,14 +194,14 @@
'bottom': '}'
};
/** Reusable template data for `_.filter` */
var filterFactoryOptions = {
/** Reusable iterator options for `_.filter` */
var filterIteratorOptions = {
'init': '[]',
'inLoop': 'callback(collection[index], index, collection) && result.push(collection[index])'
};
/** Reusable template data for `_.forEach` */
var forEachFactoryOptions = {
/** Reusable iterator options for `_.forEach` */
var forEachIteratorOptions = {
'args': 'collection, callback, thisArg',
'init': 'collection',
'top':
@@ -214,8 +214,8 @@
'inLoop': 'callback(collection[index], index, collection)'
};
/** Reusable template data for `_.map` */
var mapFactoryOptions = {
/** Reusable iterator options for `_.map` */
var mapIteratorOptions = {
'init': '',
'exit': 'if (!collection) return []',
'beforeLoop': {
@@ -228,8 +228,8 @@
}
};
/** Reusable template data for `_.max` */
var maxFactoryOptions = {
/** Reusable iterator options for `_.max` */
var maxIteratorOptions = {
'top':
'var current, computed = -Infinity, result = computed;\n' +
'if (!callback) {\n' +
@@ -420,7 +420,7 @@
if (firstArg == 'object' || iterate == 'objects') {
data.arrayBranch = null;
}
else if (firstArg == 'array' || iterate == 'arrays') {
if (firstArg == 'array' || iterate == 'arrays') {
data.objectBranch = null;
}
else if (!objectBranch.loopExp) {
@@ -430,7 +430,7 @@
var factory = Function(
'arrayClass, bind, concat, funcClass, hasOwnProperty, identity, indexOf, ' +
'Infinity, isArray, isEmpty, shadowed, slice, stringClass, toString, undefined',
'"use strict"; return function(' + args + ') {\n' + iterationTemplate(data) + '\n}'
'"use strict"; return function(' + args + ') {\n' + iteratorTemplate(data) + '\n}'
);
// return the compiled function
return factory(
@@ -547,7 +547,7 @@
* _.every([true, 1, null, 'yes'], Boolean);
* => false
*/
var every = createIterator(forEachFactoryOptions, everyFactoryOptions);
var every = createIterator(forEachIteratorOptions, everyIteratorOptions);
/**
* Examines each value in a `collection`, returning an array of all values the
@@ -568,7 +568,7 @@
* var evens = _.filter([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; });
* // => [2, 4, 6]
*/
var filter = createIterator(forEachFactoryOptions, filterFactoryOptions);
var filter = createIterator(forEachIteratorOptions, filterIteratorOptions);
/**
* Examines each value in a `collection`, returning the first one the `callback`
@@ -590,7 +590,7 @@
* var even = _.find([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; });
* // => 2
*/
var find = createIterator(forEachFactoryOptions, {
var find = createIterator(forEachIteratorOptions, {
'inLoop': 'if (callback(collection[index], index, collection)) return collection[index]'
});
@@ -616,7 +616,7 @@
* _.forEach({ 'one': 1, 'two': 2, 'three': 3}, function(num) { alert(num); });
* // => alerts each number in turn...
*/
var forEach = createIterator(forEachFactoryOptions);
var forEach = createIterator(forEachIteratorOptions);
/**
* Splits a `collection` into sets, grouped by the result of running each value
@@ -640,7 +640,7 @@
* _.groupBy(['one', 'two', 'three'], 'length');
* // => { '3': ['one', 'two'], '5': ['three'] }
*/
var groupBy = createIterator(forEachFactoryOptions, {
var groupBy = createIterator(forEachIteratorOptions, {
'init': '{}',
'top':
'var prop, isFunc = toString.call(callback) == funcClass;\n' +
@@ -674,7 +674,7 @@
* _.map({ 'one': 1, 'two': 2, 'three': 3 }, function(num) { return num * 3; });
* // => [3, 6, 9]
*/
var map = createIterator(forEachFactoryOptions, mapFactoryOptions);
var map = createIterator(forEachIteratorOptions, mapIteratorOptions);
/**
* Retrieves the maximum value of a `collection`. If `callback` is passed,
@@ -701,7 +701,7 @@
* _.max(stooges, function(stooge) { return stooge.age; });
* // => { 'name': 'curly', 'age': 60 };
*/
var max = createIterator(forEachFactoryOptions, maxFactoryOptions);
var max = createIterator(forEachIteratorOptions, maxIteratorOptions);
/**
* Retrieves the minimum value of a `collection`. If `callback` is passed,
@@ -722,9 +722,9 @@
* _.min([10, 5, 100, 2, 1000]);
* // => 2
*/
var min = createIterator(forEachFactoryOptions, maxFactoryOptions, {
'top': maxFactoryOptions.top.replace('-', '').replace('max', 'min'),
'inLoop': maxFactoryOptions.inLoop.replace('>=', '<')
var min = createIterator(forEachIteratorOptions, maxIteratorOptions, {
'top': maxIteratorOptions.top.replace('-', '').replace('max', 'min'),
'inLoop': maxIteratorOptions.inLoop.replace('>=', '<')
});
/**
@@ -747,7 +747,7 @@
* _.pluck(stooges, 'name');
* // => ['moe', 'larry', 'curly']
*/
var pluck = createIterator(mapFactoryOptions, {
var pluck = createIterator(mapIteratorOptions, {
'args': 'collection, property',
'inLoop': {
'array': 'result[index] = collection[index][property]',
@@ -870,8 +870,8 @@
* var odds = _.reject([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; });
* // => [1, 3, 5]
*/
var reject = createIterator(forEachFactoryOptions, filterFactoryOptions, {
'inLoop': '!' + filterFactoryOptions.inLoop
var reject = createIterator(forEachIteratorOptions, filterIteratorOptions, {
'inLoop': '!' + filterIteratorOptions.inLoop
});
/**
@@ -960,9 +960,9 @@
* _.some([null, 0, 'yes', false]);
* // => true
*/
var some = createIterator(forEachFactoryOptions, everyFactoryOptions, {
var some = createIterator(forEachIteratorOptions, everyIteratorOptions, {
'init': 'false',
'inLoop': everyFactoryOptions.inLoop.replace('!', '')
'inLoop': everyIteratorOptions.inLoop.replace('!', '')
});
/**
@@ -1007,7 +1007,7 @@
* _.values({ 'one': 1, 'two': 2, 'three': 3 });
* // => [1, 2, 3]
*/
var values = createIterator(mapFactoryOptions, {
var values = createIterator(mapIteratorOptions, {
'args': 'collection',
'inLoop': {
'array': 'result[index] = collection[index]',
@@ -2048,8 +2048,8 @@
* _.defaults(iceCream, { 'flavor': 'vanilla', 'sprinkles': 'lots' });
* // => { 'flavor': 'chocolate', 'sprinkles': 'lots' }
*/
var defaults = createIterator(extendFactoryOptions, {
'inLoop': 'if (object[index] == undefined)' + extendFactoryOptions.inLoop
var defaults = createIterator(extendIteratorOptions, {
'inLoop': 'if (object[index] == undefined)' + extendIteratorOptions.inLoop
});
/**
@@ -2067,7 +2067,7 @@
* _.extend({ 'name': 'moe' }, { 'age': 40 });
* // => { 'name': 'moe', 'age': 40 }
*/
var extend = createIterator(extendFactoryOptions);
var extend = createIterator(extendIteratorOptions);
/**
* Produces a sorted array of the properties, own and inherited, of `object`