Created
November 1, 2012 04:52
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script type="text/javascript" src="http://yui.yahooapis.com/3.1.0/build/yui/yui-min.js"></script> | |
| </head> | |
| <body> | |
| <h1>Modules</h1> | |
| <script type="text/javascript"> | |
| var modules = { | |
| a: { | |
| requires: [ 'b', 'c' ] | |
| }, | |
| b: { | |
| requires: [ 'c', 'd' ] | |
| }, | |
| c: { | |
| requires: [ 'd', 'e' ] | |
| }, | |
| d:{ | |
| // cyclic reference | |
| requires: [ 'c' ] | |
| }, | |
| e: { | |
| } | |
| }; | |
| YUI().use('base', 'collection', function(Y) { | |
| window.Modules = { | |
| getRequires: function(name) { | |
| return Y.Array.unique( | |
| this._getRequires.apply(this, [name]) | |
| ); | |
| }, | |
| _getRequires: function(name) { | |
| var instance = this, module = modules[name], o = []; | |
| if (module) { | |
| var req1 = module.requires; | |
| for (var i=0; (req1 && (i < req1.length)); i++) { | |
| var m = req1[i]; | |
| if (modules[m]) { | |
| var req2 = modules[m].requires; | |
| if (req2 && (req2.indexOf(name) === -1)) { | |
| o = o.concat( | |
| instance._getRequires(m) | |
| ); | |
| } | |
| o.push(m); | |
| } | |
| }; | |
| o.push(name); | |
| } | |
| return o; | |
| } | |
| }; | |
| // Testing | |
| console.log( | |
| Modules.getRequires('a') // ["d", "e", "c", "b", "a"] | |
| ); | |
| console.log( | |
| Modules.getRequires('c') // ["d", "e", "c"] | |
| ); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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