object.c:238
static VALUE
inspect_obj(obj, str)
    VALUE obj, str;
{
    st_foreach(ROBJECT(obj)->iv_tbl, inspect_i, str);
    rb_str_cat2(str, ">");
    RSTRING(str)->ptr[0] = '#';
    OBJ_INFECT(str, obj);

    return str;
}
