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lodash: Add spaces to compiled / template strings. [jddalton]

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Former-commit-id: e28bb94dfb8f315f62dd942765752739f30950dc
This commit is contained in:
John-David Dalton
2012-04-25 14:19:44 -04:00
parent b3d249f2ef
commit 23b8d083a4
3 changed files with 98 additions and 83 deletions
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148
lodash.js
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@@ -81,24 +81,26 @@
/** Compilation options for `_.difference` */
var differenceFactoryOptions = {
'args': 'array',
'top': 'var values=concat.apply([],slice.call(arguments,1))',
'top': 'var values = concat.apply([], slice.call(arguments, 1))',
'init': '[]',
'inLoop': 'if(indexOf(values,array[index])<0)result.push(array[index])'
'inLoop': 'if (indexOf(values, array[index]) < 0) result.push(array[index])'
};
/** Compilation options for `_.every` */
var everyFactoryOptions = {
'init': 'true',
'inLoop': 'if(!callback(collection[index],index,collection))return !result'
'inLoop': 'if (!callback(collection[index], index, collection)) return !result'
};
/** Compilation options for `_.extend` */
var extendFactoryOptions = {
'args': 'object',
'init': 'object',
'beforeLoop': 'for(var source,j=1,length=arguments.length;j<length;j++){\nsource=arguments[j]',
'beforeLoop':
'for (var source, j = 1, length = arguments.length; j < length; j++) {\n' +
'source = arguments[j]',
'loopExp': 'index in source',
'inLoop': 'object[index]=source[index]',
'inLoop': 'object[index] = source[index]',
'useHas': false,
'afterLoop': '}'
};
@@ -106,23 +108,27 @@
/** Compilation options for `_.filter` */
var filterFactoryOptions = {
'init': '[]',
'inLoop': 'callback(collection[index],index,collection)&&result.push(collection[index])'
'inLoop': 'callback(collection[index], index, collection) && result.push(collection[index])'
};
/** Compilation options for `_.forEach` */
var forEachFactoryOptions = {
'args': 'collection,callback,thisArg',
'args': 'collection, callback, thisArg',
'top':
'if(!callback){\ncallback=identity\n}\n' +
'else if(thisArg){\ncallback=bind(callback,thisArg)\n}',
'if (!callback) {\n' +
'callback = identity\n' +
'}\n' +
'else if (thisArg) {\n' +
'callback = bind(callback, thisArg)\n' +
'}',
'init': 'collection',
'inLoop': 'callback(collection[index],index,collection)'
'inLoop': 'callback(collection[index], index, collection)'
};
/** Compilation options for `_.keys` */
var keysFactoryOptions = {
'args': 'object',
'top': 'if(object!==Object(object))throw TypeError()',
'top': 'if (object !== Object(object)) throw TypeError()',
'init': '[]',
'inLoop': 'result.push(index)'
};
@@ -132,26 +138,31 @@
'init': '',
'exits': '[]',
'beforeLoop': {
'array': 'result=Array(length)',
'object': 'result=[]'
'array': 'result = Array(length)',
'object': 'result = []'
},
'inLoop': {
'array': 'result[index]=callback(collection[index],index,collection)',
'object': 'result[result.length]=callback(collection[index],index,collection)'
'array': 'result[index] = callback(collection[index], index, collection)',
'object': 'result[result.length] = callback(collection[index], index, collection)'
}
};
/** Compilation options for `_.max` */
var maxFactoryOptions = {
'top':
'var current,result=-Infinity,computed=result;\n' +
'if(!callback){\n' +
'if(isArray(collection)&&collection[0]===+collection[0])return Math.max.apply(Math,collection);\n' +
'if(isEmpty(collection))return result;\n' +
'}else if(thisArg)callback=bind(callback,thisArg)',
'var current, computed = -Infinity, result = computed;\n' +
'if (!callback) {\n' +
'if (isArray(collection) && collection[0] === +collection[0])' +
'return Math.max.apply(Math, collection);\n' +
'if (isEmpty(collection))' +
'return result\n' +
'} else if (thisArg) callback = bind(callback, thisArg)',
'inLoop':
'current=callback?callback(collection[index],index,collection):collection[index];\n' +
'if(current>=computed)computed=current,result=collection[index]'
'current = callback' +
'? callback(collection[index], index, collection)' +
': collection[index];\n' +
'if (current >= computed)' +
'computed = current, result = collection[index]'
};
/*--------------------------------------------------------------------------*/
@@ -221,9 +232,9 @@
var isEmpty = iterationFactory({
'args': 'value',
'iterate': 'objects',
'top': 'var className=toString.call(value)',
'top': 'var className = toString.call(value)',
'init': 'true',
'beforeLoop': 'if(className==arrayClass||className==stringClass)return !value.length',
'beforeLoop': 'if (className == arrayClass || className == stringClass) return !value.length',
'inLoop': 'return false'
});
@@ -269,29 +280,30 @@
useHas = options.useHas !== false;
// stings used to compile methods are minified during the build process
return Function('arrayClass,bind,concat,funcClass,hasOwnProperty,identity,' +
'indexOf,Infinity,isArray,isEmpty,Math,slice,stringClass,' +
'toString,undefined',
return Function('arrayClass, bind, concat, funcClass, hasOwnProperty, identity,' +
'indexOf, Infinity, isArray, isEmpty, Math, slice, stringClass,' +
'toString, undefined',
// compile the function in strict mode
'"use strict";' +
// compile the arguments the function accepts
'return function(' + args + '){\n' +
'return function(' + args + ') {\n' +
// add code to the top of the iteration method
(options.top || '') + ';\n' +
// assign the `result` variable an initial value
('var index, result' + (init ? '=' + init : '')) + ';\n' +
// exit early if the first argument, e.g. `collection`, is nullish
'if(' + firstArg + '==undefined)return ' + (options.exits || 'result') + ';\n' +
'if (' + firstArg + ' == undefined) return ' + (options.exits || 'result') + ';\n' +
// the following branch is for iterating arrays and array-like objects
(arrayBranch
// initialize `length` and `index` variables
? 'var length=' + firstArg + '.length;\nindex=-1;\n' +
? 'var length = ' + firstArg + '.length;\n' +
'index = -1;\n' +
// check if the `collection` is array-like when there is an object iteration branch
((objectBranch ? 'if(length===+length){\n' : '') +
((objectBranch ? 'if (length === +length) {\n' : '') +
// add code before the while-loop
(array.beforeLoop || '') + ';\n' +
// add a custom loop expression
'while(' + (array.loopExp || '++index<length') + '){\n' +
'while (' + (array.loopExp || '++index < length') + ') {\n' +
// add code inside the while-loop
array.inLoop +
'\n}' +
@@ -304,13 +316,13 @@
// the following branch is for iterating an object's own/inherited properties
(objectBranch
// begin the else-statement when there is an array-like iteration branch
? ((arrayBranch ? 'else{\n' : '') +
? ((arrayBranch ? 'else {\n' : '') +
// add code before the for-in loop
(object.beforeLoop || '') + ';\n' +
// add a custom loop expression
'for(' + (object.loopExp || 'index in ' + firstArg) + '){\n' +
'for (' + (object.loopExp || 'index in ' + firstArg) + ') {\n' +
// compile in `hasOwnProperty` checks when `options.useHas` is not `false`
(useHas ? 'if(hasOwnProperty.call(' + /\S+$/.exec(object.loopExp || firstArg)[0] + ',index)){\n' : '') +
(useHas ? 'if (hasOwnProperty.call(' + /\S+$/.exec(object.loopExp || firstArg)[0] + ',index)) {\n' : '') +
// add code inside the for-in loop
object.inLoop +
(useHas ? '\n}' : '') +
@@ -364,9 +376,9 @@
* // => true
*/
var contains = iterationFactory({
'args': 'collection,target',
'args': 'collection, target',
'init': 'false',
'inLoop': 'if(collection[index]===target)return true'
'inLoop': 'if (collection[index] === target) return true'
});
/**
@@ -431,7 +443,7 @@
* // => 2
*/
var find = iterationFactory(forEachFactoryOptions, {
'inLoop': 'if(callback(collection[index],index,collection))return collection[index]'
'inLoop': 'if (callback(collection[index], index, collection)) return collection[index]'
});
/**
@@ -483,11 +495,13 @@
var groupBy = iterationFactory(forEachFactoryOptions, {
'init': '{}',
'beforeLoop':
'var prop,isFunc=toString.call(callback)==funcClass;\n' +
'if(isFunc&&thisArg)callback=bind(callback,thisArg)',
'var prop, isFunc = toString.call(callback) == funcClass;\n' +
'if (isFunc && thisArg) callback = bind(callback, thisArg)',
'inLoop':
'prop=isFunc?callback(collection[index],index,collection):collection[index][callback];\n' +
'(result[prop]||(result[prop]=[])).push(collection[index])'
'prop = isFunc' +
'? callback(collection[index], index, collection)' +
': collection[index][callback];\n' +
'(result[prop] || (result[prop] = [])).push(collection[index])'
});
/**
@@ -507,13 +521,13 @@
* // => [[1, 5, 7], [1, 2, 3]]
*/
var invoke = iterationFactory(mapFactoryOptions, {
'args': 'collection,methodName',
'top': 'var args=slice.call(arguments,2),isFunc=toString.call(methodName)==funcClass',
'args': 'collection, methodName',
'top': 'var args = slice.call(arguments, 2), isFunc = toString.call(methodName) == funcClass',
'inLoop': (function() {
var value = '(isFunc?methodName:collection[index][methodName]).apply(collection[index],args)';
var value = '(isFunc ? methodName : collection[index][methodName]).apply(collection[index], args)';
return {
'array': 'result[index]=' + value,
'object': 'result[result.length]=' + value
'array': 'result[index] = ' + value,
'object': 'result[result.length] = ' + value
};
}())
});
@@ -614,10 +628,10 @@
* // => ['moe', 'larry', 'curly']
*/
var pluck = iterationFactory(mapFactoryOptions, {
'args': 'collection,property',
'args': 'collection, property',
'inLoop': {
'array': 'result[index]=collection[index][property]',
'object': 'result[result.length]=collection[index][property]'
'array': 'result[index] = collection[index][property]',
'object': 'result[result.length] = collection[index][property]'
}
});
@@ -645,22 +659,22 @@
*/
var reduce = iterationFactory({
'args':
'collection,callback,accumulator,thisArg',
'collection, callback, accumulator, thisArg',
'top':
'var initial=arguments.length>2;\n' +
'if(thisArg)callback=bind(callback,thisArg)',
'var initial = arguments.length > 2;\n' +
'if (thisArg) callback = bind(callback, thisArg)',
'init':
'accumulator',
'beforeLoop': {
'array': 'if(!initial)result=collection[++index]'
'array': 'if (!initial) result = collection[++index]'
},
'inLoop': {
'array':
'result=callback(result,collection[index],index,collection)',
'result = callback(result, collection[index], index, collection)',
'object':
'result=initial\n' +
'?callback(result,collection[index],index,collection)\n' +
':(initial=true,collection[index])'
'result = initial\n' +
'? callback(result, collection[index], index, collection)\n' +
': (initial = true, collection[index])'
}
});
@@ -934,8 +948,8 @@
var values = iterationFactory(mapFactoryOptions, {
'args': 'collection',
'inLoop': {
'array': 'result[index]=collection[index]',
'object': 'result[result.length]=collection[index]'
'array': 'result[index] = collection[index]',
'object': 'result[result.length] = collection[index]'
}
});
@@ -958,7 +972,7 @@
var compact = iterationFactory({
'args': 'array',
'init': '[]',
'inLoop': 'if(array[index])result.push(array[index])'
'inLoop': 'if (array[index]) result.push(array[index])'
});
/**
@@ -1310,7 +1324,7 @@
* // => [2, 3, 4]
*/
var without = iterationFactory(differenceFactoryOptions, {
'top': 'var values=slice.call(arguments,1)',
'top': 'var values = slice.call(arguments, 1)',
'init': '[]'
});
@@ -1722,7 +1736,7 @@
* // => { 'flavor': 'chocolate', 'sprinkles': 'lots' }
*/
var defaults = iterationFactory(extendFactoryOptions, {
'inLoop': 'if(object[index]==undefined)' + extendFactoryOptions.inLoop
'inLoop': 'if (object[index] == undefined)' + extendFactoryOptions.inLoop
});
/**
@@ -1760,7 +1774,7 @@
var functions = iterationFactory(keysFactoryOptions, {
'top': '',
'useHas': false,
'inLoop': 'if(toString.call(object[index])==funcClass)result.push(index)',
'inLoop': 'if (toString.call(object[index]) == funcClass) result.push(index)',
'returns': 'result.sort()'
});
@@ -2505,11 +2519,11 @@
// if a variable is not specified, place data values in local scope
if (!options.variable) {
source = 'with(object||{}){\n' + source + '\n}\n';
source = 'with (object || {}) {\n' + source + '\n}\n';
}
source = 'var __t,__j=Array.prototype.join,__p="";' +
'function print(){__p+=__j.call(arguments,"")}\n' +
source = 'var __t, __j = Array.prototype.join, __p = "";' +
'function print() { __p += __j.call(arguments, "") }\n' +
source + 'return __p';
var render = Function(options.variable || 'object', '_', source);