[Feature Request] Support for ruby-lsp 0.27 (Rubydex)

[pvcresin]

Hi, thanks for maintaining this gem — it's a daily-driver for me.

ruby-lsp 0.27.0.beta3 has landed the Rubydex-based indexer and removed the old RubyIndexer. Since this gem's addon currently references the old API directly — for example:

• IndexingEnhancement < RubyIndexer::Enhancement (indexing_enhancement.rb)
• RubyIndexer::Entry::Signature.new([]) (same file)
• global_state.index #: RubyIndexer::Index? (addon.rb)

…loosening the ~> 0.26.0 pin alone won't be enough; it needs a port to the new Rubydex enhancement API.

I understand 0.27 is still in beta, so you may be waiting for a stable release before tackling this. For reference, ruby-lsp-rails has shipped 0.5.0.beta1 as a prerelease compatible with ruby-lsp 0.27.0.beta2+, even ahead of a stable release.

If you could share any rough thoughts on direction or timing for 0.27 support, that would help me plan how to use the gem going forward.

Thanks!

[pvcresin]

Following the ruby-lsp-rails migration trail as a reference: they loosened the dep (Shopify/ruby-lsp-rails#705), ported definition / hover / test discovery to Rubydex (#706, #707, #710), but ended up landing Shopify/ruby-lsp-rails#711 which removes their indexing enhancement, with this note:

We are still exploring an efficient way of handling DSLs, such as things like belongs_to, has_many and so on. For now, let's remove the enhancement since we cannot provide the same exact API.

This gem's IndexingEnhancement does the structurally same thing for let / subject, so I imagine you're hitting the same open question. Porting without it means losing go-to-definition on let-defined helpers.

No rush on my end — happy to keep this open as a tracker until upstream lands a DSL story.