JRuby Prism - A new parser for a new era

JRuby Prism - A new parser for a new era Thomas E. Enebo - Feb 23, 2024 Introduction JRuby has added support for the new backend parser Prism via the gem: jruby-prism-parser. Installing this gem will give you access to enable Prism (export JRUBY_OPTS="-Xparser.prism"). At this stage jruby-prism-parser is at the technology preview stage but capable of running pretty much everything: Rake, RSpec, Ru

[YassLab]

"Prism is a big step forward for the Ruby community. It has been a lot of work to initially support this new parser in JRuby but it will make development going forward much simpler. The performance gains and other potential will give us some new tricks to improve startup time even more."