gistfile1.txt

Logger = {
	ensure: function(context){
		var self = this;
		var prefix = '[' + context + '] ';
		this[context] = function(){
			var args = Array.prototype.slice.call(arguments);
			args.unshift(prefix);
			console.log.apply(console, args);
		}
	}
};

InvokeLogger = Context(function(log){
	Logger = log;
	Logger.info("test");
	Logger.info("second");
}, {
	Logger: {
		info: function(message){
			this.ensure("info");
			this.info("[ROLE]", message);
		}
	}
});

InvokeLogger(Logger);

Logger.info("testing");