Ruby Issue Tracking System

09/05/2026

12:59 PM Ruby Revision a946c1bd (git): Report a void value in an and/or chain only once

value_expr_check descended into the left operand of an and/or node,
so a chain such as `x = (return) && (return) && a` reported the same
void value once per operator instead of once. The left operand is
already checked for a value when l... make_now_just (Hiroya Fujinami)

09:18 AM Ruby Revision 8587ce29 (git): [ruby/prism] Avoid quadratic value-expression check on and/or chains

(https://github.com/ruby/prism/pull/4221)
Ref https://bugs.ruby-lang.org/issues/22294
pm_check_value_expression descended the left operand of every and/or
node it visited. Because pm_and_node_create and pm_or_node_create
already assert... make_now_just (Hiroya Fujinami)

05:29 AM Ruby Bug #22294: Parsing a long && / || chain is quadratic

I crated a pull request for each repo:
- https://github.com/ruby/ruby/pull/18638
- https://github.com/ruby/prism/pull/4221
make_now_just (Hiroya Fujinami)

05:09 AM Ruby Bug #22294 (Open): Parsing a long && / || chain is quadratic

Parsing a long chain of short-circuit logical operators (`&&`, `||`, `and`, `or`) takes time that is quadratic in the chain's length.
It affects both parsers, parse.y and Prism.
## Reproduction
```ruby
require "prism"
def benc... make_now_just (Hiroya Fujinami)

04/29/2026

02:09 AM Ruby Revision 493d26dc (git): Reject overflowed repeat/null-check IDs in huge regexps (#16801)

Add explicit errors for excessive range-repeat and null-check IDs;
map new errors in regerror; add regression tests for oversized generated
patterns. make_now_just (Hiroya Fujinami)

11/02/2025

05:05 AM Ruby Revision e02c892a (git): Fix indents in Onigmo files to use spaces instead of tabs (#14047) [no ci]

make_now_just (Hiroya Fujinami)

09/20/2025

06:05 AM Ruby Misc #21385: Namespace: Suggesting a rename

"Ruby Box" is a registered trademark in Japan by Hitachi Solutions Technology, Ltd.
While this is likely not a legal issue, it could unintentionally create search engine confusion and negatively impact their product.
The Ruby communi... make_now_just (Hiroya Fujinami)

08/02/2025

12:00 PM Ruby Revision 92785d51 (git): Port a Oniguruma patch: Integer overflow in onig_search_gpos()

https://github.com/kkos/oniguruma/commit/778a43dd56925ed58bbe26e3a7bb8202d72c3f3f
It differs from the Oniguruma patch in that it dosen't use `onigenc_get_prev_char_head()`
because this function's signature has been changed by Oniguruma ... make_now_just (Hiroya Fujinami)

12:00 PM Ruby Revision d142f6bc (git): Add castings to prevent warnings

make_now_just (Hiroya Fujinami)

12:00 PM Ruby Revision fda30bd8 (git): Correct castings to use OnigDistance

make_now_just (Hiroya Fujinami)