gistfile1.txt

Class('FileSystem', {
    
    trait : JooseX.CPS,
    
    
    continued : {

        methods : {
            
            save : function (data) {
                var CONT = this.CONT
                
                require('fs').saveFile('filename.txt', data, function (err, written) {
                    if (err) {
                        CONT.THROW(err)
                        
                        return
                    }
                    
                    CONT.CONTINUE(written)
                })            
            }
        }
    }
})


var fs = new FileSystem()


fs.save('some data').then(function (written) {
    
    // do smth
    
}).CATCH(function (exception) {

    // do smth
    
}).FINALLY(function () {

    // do smth
    
}).now()