De-eval'd selectors and the various DOM methods (will marginally help our speed and...
authorJohn Resig <jeresig@gmail.com>
Sat, 26 Jan 2008 00:26:28 +0000 (00:26 +0000)
committerJohn Resig <jeresig@gmail.com>
Sat, 26 Jan 2008 00:26:28 +0000 (00:26 +0000)
src/core.js
src/selector.js

index 4cb0a22..d8526d7 100644 (file)
@@ -1153,11 +1153,6 @@ jQuery.extend({
        },
 
        grep: function( elems, callback, inv ) {
-               // If a string is passed in for the function, make a function
-               // for it (a handy shortcut)
-               if ( typeof callback == "string" )
-                       callback = eval("false||function(a,i){return " + callback + "}");
-
                var ret = [];
 
                // Go through the array, only saving the items
@@ -1230,18 +1225,16 @@ jQuery.extend({
 });
 
 jQuery.each({
-       parent: "elem.parentNode",
-       parents: "jQuery.dir(elem,'parentNode')",
-       next: "jQuery.nth(elem,2,'nextSibling')",
-       prev: "jQuery.nth(elem,2,'previousSibling')",
-       nextAll: "jQuery.dir(elem,'nextSibling')",
-       prevAll: "jQuery.dir(elem,'previousSibling')",
-       siblings: "jQuery.sibling(elem.parentNode.firstChild,elem)",
-       children: "jQuery.sibling(elem.firstChild)",
-       contents: "jQuery.nodeName(elem,'iframe')?elem.contentDocument||elem.contentWindow.document:jQuery.makeArray(elem.childNodes)"
+       parent: function(elem){return elem.parentNode;},
+       parents: function(elem){return jQuery.dir(elem,"parentNode");},
+       next: function(elem){return jQuery.nth(elem,2,"nextSibling");},
+       prev: function(elem){return jQuery.nth(elem,2,"previousSibling");},
+       nextAll: function(elem){return jQuery.dir(elem,"nextSibling");},
+       prevAll: function(elem){return jQuery.dir(elem,"previousSibling");},
+       siblings: function(elem){return jQuery.sibling(elem.parentNode.firstChild,elem);},
+       children: function(elem){return jQuery.sibling(elem.firstChild);},
+       contents: function(elem){return jQuery.nodeName(elem,"iframe")?elem.contentDocument||elem.contentWindow.document:jQuery.makeArray(elem.childNodes);}
 }, function(name, fn){
-       fn = eval("false||function(elem){return " + fn + "}");
-
        jQuery.fn[ name ] = function( selector ) {
                var ret = jQuery.map( this, fn );
 
index 1badc69..2040728 100644 (file)
@@ -8,61 +8,61 @@ var chars = jQuery.browser.safari && parseInt(jQuery.browser.version) < 417 ?
 
 jQuery.extend({
        expr: {
-               "": "m[2]=='*'||jQuery.nodeName(a,m[2])",
-               "#": "a.getAttribute('id')==m[2]",
+               "": function(a,i,m){return m[2]=="*"||jQuery.nodeName(a,m[2]);},
+               "#": function(a,i,m){return a.getAttribute("id")==m[2];},
                ":": {
                        // Position Checks
-                       lt: "i<m[3]-0",
-                       gt: "i>m[3]-0",
-                       nth: "m[3]-0==i",
-                       eq: "m[3]-0==i",
-                       first: "i==0",
-                       last: "i==r.length-1",
-                       even: "i%2==0",
-                       odd: "i%2",
+                       lt: function(a,i,m){return i<m[3]-0;},
+                       gt: function(a,i,m){return i>m[3]-0;},
+                       nth: function(a,i,m){return m[3]-0==i;},
+                       eq: function(a,i,m){return m[3]-0==i;},
+                       first: function(a,i){return i==0;},
+                       last: function(a,i,m,r){return i==r.length-1;},
+                       even: function(a,i){return i%2==0;},
+                       odd: function(a,i){return i%2;},
 
                        // Child Checks
-                       "first-child": "a.parentNode.getElementsByTagName('*')[0]==a",
-                       "last-child": "jQuery.nth(a.parentNode.lastChild,1,'previousSibling')==a",
-                       "only-child": "!jQuery.nth(a.parentNode.lastChild,2,'previousSibling')",
+                       "first-child": function(a){return a.parentNode.getElementsByTagName("*")[0]==a;},
+                       "last-child": function(a){return jQuery.nth(a.parentNode.lastChild,1,"previousSibling")==a;},
+                       "only-child": function(a){return !jQuery.nth(a.parentNode.lastChild,2,"previousSibling");},
 
                        // Parent Checks
-                       parent: "a.firstChild",
-                       empty: "!a.firstChild",
+                       parent: function(a){return a.firstChild;},
+                       empty: function(a){return !a.firstChild;},
 
                        // Text Check
-                       contains: "(a.textContent||a.innerText||jQuery(a).text()||'').indexOf(m[3])>=0",
+                       contains: function(a,i,m){return (a.textContent||a.innerText||jQuery(a).text()||"").indexOf(m[3])>=0;},
 
                        // Visibility
-                       visible: '"hidden"!=a.type&&jQuery.css(a,"display")!="none"&&jQuery.css(a,"visibility")!="hidden"',
-                       hidden: '"hidden"==a.type||jQuery.css(a,"display")=="none"||jQuery.css(a,"visibility")=="hidden"',
+                       visible: function(a){return "hidden"!=a.type&&jQuery.css(a,"display")!="none"&&jQuery.css(a,"visibility")!="hidden";},
+                       hidden: function(a){return "hidden"==a.type||jQuery.css(a,"display")=="none"||jQuery.css(a,"visibility")=="hidden";},
 
                        // Form attributes
-                       enabled: "!a.disabled",
-                       disabled: "a.disabled",
-                       checked: "a.checked",
-                       selected: "a.selected||jQuery.attr(a,'selected')",
+                       enabled: function(a){return !a.disabled;},
+                       disabled: function(a){return a.disabled;},
+                       checked: function(a){return a.checked;},
+                       selected: function(a){return a.selected||jQuery.attr(a,"selected");},
 
                        // Form elements
-                       text: "'text'==a.type",
-                       radio: "'radio'==a.type",
-                       checkbox: "'checkbox'==a.type",
-                       file: "'file'==a.type",
-                       password: "'password'==a.type",
-                       submit: "'submit'==a.type",
-                       image: "'image'==a.type",
-                       reset: "'reset'==a.type",
-                       button: '"button"==a.type||jQuery.nodeName(a,"button")',
-                       input: "/input|select|textarea|button/i.test(a.nodeName)",
+                       text: function(a){return "text"==a.type;},
+                       radio: function(a){return "radio"==a.type;},
+                       checkbox: function(a){return "checkbox"==a.type;},
+                       file: function(a){return "file"==a.type;},
+                       password: function(a){return "password"==a.type;},
+                       submit: function(a){return "submit"==a.type;},
+                       image: function(a){return "image"==a.type;},
+                       reset: function(a){return "reset"==a.type;},
+                       button: function(a){return "button"==a.type||jQuery.nodeName(a,"button");},
+                       input: function(a){return /input|select|textarea|button/i.test(a.nodeName);},
 
                        // :has()
-                       has: "jQuery.find(m[3],a).length",
+                       has: function(a,i,m){return jQuery.find(m[3],a).length;},
 
                        // :header
-                       header: "/h\\d/i.test(a.nodeName)",
+                       header: function(a){return /h\d/i.test(a.nodeName);},
 
                        // :animated
-                       animated: "jQuery.grep(jQuery.timers,function(fn){return a==fn.elem;}).length"
+                       animated: function(a){return jQuery.grep(jQuery.timers,function(fn){return a==fn.elem;}).length;}
                }
        },
        
@@ -390,15 +390,17 @@ jQuery.extend({
 
                        // Otherwise, find the expression to execute
                        } else {
-                               var f = jQuery.expr[m[1]];
-                               if ( typeof f != "string" )
-                                       f = jQuery.expr[m[1]][m[2]];
+                               var fn = jQuery.expr[ m[1] ];
+                               if ( typeof fn == "object" )
+                                       fn = fn[ m[2] ];
 
-                               // Build a custom macro to enclose it
-                               f = eval("false||function(a,i){return " + f + "}");
+                               if ( typeof fn == "string" )
+                                       fn = eval("false||function(a,i){return " + fn + ";}");
 
                                // Execute it against the current filter
-                               r = jQuery.grep( r, f, not );
+                               r = jQuery.grep( r, function(elem, i){
+                                       return fn(elem, i, m, r);
+                               }, not );
                        }
                }