to_json (JSON::Ext::Generator::GeneratorMethods::Object)

    /*
     * call-seq: to_json(*)
     *
     * Converts this object to a string (calling #to_s), converts
     * it to a JSON string, and returns the result. This is a fallback, if no
     * special method #to_json was defined for some object.
     */
    static VALUE mObject_to_json(int argc, VALUE *argv, VALUE self)
    {
        VALUE string = rb_funcall(self, i_to_s, 0);
        Check_Type(string, T_STRING);
        return mString_to_json(argc, argv, string);
    }