rewriteRouteProto.js

var routeProto = require('express/lib/router/route').prototype;
var routerProto = require('express/lib/router');
var methods = require('express/node_modules/methods').concat(['all']);
wrapCallback = function (c) {
  return c;
}
methods.forEach(function (method) {
  var orig = routeProto[method];
  routeProto[method] = function () {
    var callbacks = utils.flatten([].slice.call(arguments));
    return orig.apply(this, callbacks.map(wrapCallback));
  }
});
(function () {
  var cache = routerProto.use;
  routerProto.use = function (route, fn) {
    // default route to '/'
    if ('string' != typeof route) {
      fn = route;
      route = '/';
    }
    return cache.call(this, route, wrapCallback(fn));
  }
}());