From: Yukihiro Matsumoto Date: 2011-11-28T15:16:46+09:00 Subject: [ruby-core:41352] Re: [ruby-trunk - Feature #5678] StringIO#to_str Hi, In message "Re: [ruby-core:41347] [ruby-trunk - Feature #5678] StringIO#to_str" on Mon, 28 Nov 2011 11:16:33 +0900, Martin Bosslet 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. matz.