利用 argument 来做依赖注入，一个简单的例子

di.js

var obj = {
    hello: function() {
        console.log('sofish');
    },
    world: function(){
        console.log('lin');
    }
};

var fn = function(hello, ooxx, world){
    var di = arguments.callee
        .toString()
        .replace(/^[^(]+\(([^)]+)\)(?:.+(\n)?)+$/, '$1')
        .replace(/\s/g, '')
        .split(',');
        
    for(var i = 0, len = di.length; i < len; i++) {
        var p = di[i];        
        if(typeof obj[p] !== 'undefined') obj[p]();
    }
        
}

fn();