Ruby Issue Tracking System

Today

11:44 AM Ruby Feature #22097: Add Proc#with_refinements

Now `Proc#with_refinements` can be called in non-main Ractors:
https://github.com/ruby/ruby/pull/17248/changes/2cddb3fd99a7c68b4ab478f497f2610206edf335
Memo access is synchronized with `RB_VM_LOCKING()`.
In single-Ractor mode it tak... shugo (Shugo Maeda)

06/12/2026

07:02 PM Ruby Revision 1940cd56 (git): compile.c: fix dupstring-of-Regexp from folded /o regexp

The peephole optimizer folds "dupstring str; toregexp" (and the
dupchilledstring / putobject-string variants) into a single
literal-push by compiling the Regexp at compile time and replacing the
operand with it. It replaced the operand ... shugo (Shugo Maeda)

08:15 AM Ruby Bug #22103 (Closed): Constant-folded /o regexp crashes with dupstring of a Regexp

Applied in changeset commit:git|0f211465887a601a9a1eb1b8d4f5174c852b4939.
----------
compile.c: fix dupstring-of-Regexp from folded /o regexp
The peephole optimizer folds "dupstring str; toregexp" (and the
dupchilledstring / putobject-... shugo (Shugo Maeda)

08:15 AM Ruby Revision 0f211465 (git): compile.c: fix dupstring-of-Regexp from folded /o regexp

The peephole optimizer folds "dupstring str; toregexp" (and the
dupchilledstring / putobject-string variants) into a single
literal-push by compiling the Regexp at compile time and replacing the
operand with it. It replaced the operand ... shugo (Shugo Maeda)

07:31 AM Ruby Misc #22107: DevMeeting-2026-07-09

* [Feature #22097] Add Proc#with_refinements
* For maintainability, I've replaced the hand-written iseq deep-copy with an in-memory IBF dump+load round-trip
* Should it warn or raise when called with different modules for the same ... shugo (Shugo Maeda)

05:44 AM Ruby Feature #22097: Add Proc#with_refinements

Thank you for the feedback!
Eregon (Benoit Daloze) wrote in #note-8:
> Since the performance relies on having `with_refinements` called always with the same Refinement module for a given block, how about raising an exception if it do... shugo (Shugo Maeda)

06/11/2026

09:56 AM Ruby Feature #22097: Add Proc#with_refinements

For maintainability, I've replaced the hand-written iseq deep-copy with an in-memory IBF dump+load round-trip in: https://github.com/ruby/ruby/pull/17248/changes/f27cf1d98c18f4137ace0243ca696ba3e17834af
shugo (Shugo Maeda)

08:37 AM Ruby Bug #22103: Constant-folded /o regexp crashes with dupstring of a Regexp

I've opened a pull request at: https://github.com/ruby/ruby/pull/17274 shugo (Shugo Maeda)

08:29 AM Ruby Bug #22103 (Closed): Constant-folded /o regexp crashes with dupstring of a Regexp

A `/o` (once) regexp whose interpolation folds to a constant crashes at runtime:
```ruby
def m; /#{"a"}/o; end
m #=> [BUG] heap_idx_for_size: allocation size too large
```
A plain `/#{"a"}/` (no `/o`) is fine.
shugo (Shugo Maeda)

06/10/2026

02:10 AM Ruby Feature #22097: Add Proc#with_refinements

headius (Charles Nutter) wrote in #note-2:
> Thank you for considering JRuby! I will review your PR and also start a ruby-4.1 branch you can target.
Thank you!
I've opened a new pull request at: https://github.com/jruby/jruby/pull/9486 shugo (Shugo Maeda)