private function renderField(string $value): string
    {
        if (isset($this->field)) {
            $field = '';
            if (isset($this->namespace)) {
                $field = $this->namespace.'$';
            }
            $field .= $this->field;

            if (isset($this->matchType)) {
                $field .= '.'.$this->matchType;
            }
            $value .= $field.':';
        }

        return $value;
    }