Aerys\Router::buildRouter PHP Method

    private function buildRouter(RouteCollector $rc, Server $server)
    {
        $allowedMethods = [];
        foreach ($this->routes as list($method, $uri, $actions)) {
            $allowedMethods[] = $method;
            list($app, $monitors) = $this->bootRouteTarget($actions);
            $rc->addRoute($method, $uri, $app);
            $this->monitors[$method][$uri] = $monitors;
        }
        $originalMethods = $server->getOption("allowedMethods");
        if ($server->getOption("normalizeMethodCase")) {
            $allowedMethods = array_map("strtoupper", $allowedMethods);
        }
        $allowedMethods = array_merge($allowedMethods, $originalMethods);
        $allowedMethods = array_unique($allowedMethods);
        $server->setOption("allowedMethods", $allowedMethods);
    }