On Mon, Nov 28, 2011 at 07:16, Yukihiro Matsumoto <matz / ruby-lang.org> wrote:

> In message "Re: [ruby-core:41347] [ruby-trunk - Feature #5678] StringIO#to_str"
>  on Mon, 28 Nov 2011 11:16:33 +0900, Martin Bosslet <Martin.Bosslet / googlemail.com> writes:
>
> |Do you see any negative aspects when adding StringIO#to_str?

> Yes, to_str should be implemented for objects that have (almost) same
> method signature as strings, which is not true for StringIO.

How about implementing #to_s instead?