phprs\Container::getImpl PHP Method

    public function getImpl($request)
    {
        Verify::isTrue($request !== null);
        if ($this->impl === null) {
            $injected =& $this->injected;
            $injected = array();
            $this->impl = $this->factory->create($this->class, null, null, function ($src, &$succeeded) use($request, &$injected) {
                list($val, $found) = $request->find($src);
                $succeeded = $found;
                $injected[$src] = $val;
                return $val;
            });
            asort($injected);
        }
        return $this->impl;
    }