From: Yukihiro Matsumoto Date: 2011-01-11T11:29:03+09:00 Subject: [ruby-core:34320] Re: [Ruby 1.9-Feature#4254][Open] Allow method transplanting Hi, In message "Re: [ruby-core:34319] Re: [Ruby 1.9-Feature#4254][Open] Allow method transplanting" on Tue, 11 Jan 2011 10:24:55 +0900, Ryan Davis writes: |> Although I trust the programmers, we have another rule for the |> interpreter, that Ruby should not cause segmentation fault from any |> Ruby program. | |How can transplanting a pure-ruby method cause a segfault? See [ruby-core:34319]. From above rule we cannot allow all method transplanting from classes. Since we don't want program fragility between versions, I don't want to allow method transplanting from classes at all. Remember the beginning of 1.8.7; rather small incompatibility hindered the reputation of the release so bad. I don't want to see the situation like that again. matz.