@Override
    public IRubyObject call(ThreadContext context, IRubyObject caller, IRubyObject self, long arg1) {
        if (self instanceof RubyFixnum) {
            if (cache instanceof FixnumEntry) return ((RubyFixnum) self).op_plus(context, arg1);
        } else if (self instanceof RubyFloat) {
            if (secondaryCache instanceof FloatEntry) return ((RubyFloat) self).op_plus(context, arg1);
        }
        return super.call(context, caller, self, arg1);
    }