gistfile1.txt

Class('DataStore.Async', {
    
    trait : JooseX.CPS,
    
    
    continued : {

        methods : {
            
            log : function () {
                var resultFromLog = // somehow get the response from logging operation
                
                this.CONTINUE(resultFromLog)
                
                return whatever
            },
            
        
            save : function (data) {
                this.log().then(function (resultFromLog) {
                    
                    var CONT = this.CONT
                    
                    require('fs').saveFile('filename.txt', data, function (err, written) {
                        if (err) {
                            CONT.THROW(err)
                            
                            return
                        }
                        
                        CONT.CONTINUE(written)
                    })            
                }).now()
            }
        }
    }
})


var store = new DataStore.Async


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

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

    // do smth
    
}).now()