Issue #20238 has been updated by k0kubun (Takashi Kokubun). We discussed this at DevMeeting 2024-02-14. * The idea of using Prism for supporting the latest syntax in builtin classes is accepted. * We should try making a small C program using Prism to achieve this. If it turns out to be too complicated, we'll revisit the discussion. * The way to prepare an environment for building C extensions varies across different platforms, so we worry that installing C extensions with a BASERUBY may make things harder. ---------------------------------------- Misc #20238: Use prism for mk_builtin_loader.rb https://bugs.ruby-lang.org/issues/20238#change-106746 * Author: kddnewton (Kevin Newton) * Status: Open * Priority: Normal ---------------------------------------- I would like to propose that we use prism for mk_builtin_loader.rb. Right now the Ruby syntax that you can use in builtin classes is restricted to the base Ruby version (2.7). This means you can't use a lot of the nicer syntax that Ruby has shipped in the last couple of years. If we switch to using prism to parse the builtin files instead of using ripper, then we can always use the latest version of Ruby syntax. A pull request for this is here: https://github.com/kddnewton/ruby/pull/65. The approach for the PR is taken from how RJIT bindgen works. -- https://bugs.ruby-lang.org/