Feature #26561
Updated by Toshi MARUYAMA almost 7 years ago
Hi, Ruby 2.3 introduced support for frozen string literals Pros <pre> * less memory consumption * performance (less GC preasure) * safer code </pre> Cons <pre> * mutable functions like force_encoding or gsub! can't be called on frozen strings anymore, this may cause incompatibility with some plugins, but it's very easy to fix and still maintain the backwards compatibility * a magic comment has to be added at the top of each rb file :-( </pre> More information https://www.pluralsight.com/blog/software-development/ruby-2-3--working-with-immutable-strings- Many popular gems and libraries already did this - for example: https://github.com/rails/rails/pull/29655 https://github.com/mikel/mail/pull/970 I attached a patch based on master that passes all tests. There're some garbage changes like removed whitespaces, I'll clean it up if it's approved. What do you think?