From: eregontp@... Date: 2019-12-14T11:50:49+00:00 Subject: [ruby-core:96232] [Ruby master Feature#14844] Future of RubyVM::AST? Issue #14844 has been updated by Eregon (Benoit Daloze). BTW, I think it would be good to include other Ruby implementations (cc @headius @enebo) in this discussion, since I think we all want to support a stable API for ASTs longer term. As a concrete case, `actionview_precompiler` is using RubyVM::AbstractSyntaxTree and to be compatible with JRuby it now also has a `org.jruby.ast` backend: https://github.com/jhawthorn/actionview_precompiler/commit/55007d8a09c983378c2dad88b5b3b56d608e51da A portable stable API for ASTs would be very useful I think, and likely quite more efficient than external gems parsing Ruby code. ---------------------------------------- Feature #14844: Future of RubyVM::AST? https://bugs.ruby-lang.org/issues/14844#change-83126 * Author: rmosolgo (Robert Mosolgo) * Status: Open * Priority: Normal * Assignee: yui-knk (Kaneko Yuichiro) * Target version: ---------------------------------------- Hi! Thanks for all your great work on the Ruby language. I saw the new RubyVM::AST module in 2.6.0-preview2 and I quickly went to try it out. I'd love to have a well-documented, user-friendly way to parse and manipulate Ruby code using the Ruby standard library, so I'm pretty excited to try it out. (I've been trying to learn Ripper recently, too: https://ripper-preview.herokuapp.com/, https://rmosolgo.github.io/ripper_events/ .) Based on my exploration, I opened a small PR on GitHub with some documentation: https://github.com/ruby/ruby/pull/1888 I'm curious though, are there future plans for this module? For example, we might: - Add more details about each node (for example, we could expose the names of identifiers and operators through the node classes) - Document each node type I see there is a lot more information in the C structures that we could expose, and I'm interested to help out if it's valuable. What do you think? -- https://bugs.ruby-lang.org/ Unsubscribe: