Activity
From 04/22/2026 to 04/28/2026
Today
-
05:38 PM Ruby Feature #21871 (Rejected): Add Module#undef_const
- This was discussed again at the RubyKaigi developer meeting, but it was not accepted. However, the discussion during the meeting was helpful, as it turns out you can emulate this feature by using `autoload :Constant, "file/that/raises/ex...
-
03:36 PM Ruby Feature #21998: Add {Method,UnboundMethod,Proc}#source_range
- Proc's source in the code below consists of 3 parts. `do`, `inside\n<<B; end`, and `exclave\nB`.
```ruby
<<A; tap do
outside injected
A
inside
<<B; end; outside
exclave
B
```
Even if heredocs are used, I think `do` is the s... -
12:56 AM Ruby Feature #21998: Add {Method,UnboundMethod,Proc}#source_range
- > If I'm understanding you correctly, then what you would like for source_range for the example for foo and bar methods is then:
I don't claim to have any suggestion for HERE docs because of the disjoint problem you mentioned. But cle... -
- > The only choice for Prism.find there is to return the ForNode
`for` syntax does not parse as a ForNode without the block, so the two are not separable. Calls do parse without the block and remain CallNode. A block is an argument to ... -
01:36 PM Ruby Bug #22017 (Closed): Backport win32-resolv
- The win32-resolv library bundled with ruby 3.4 is half-baked 0.6.2.
It should be updated to 0.6.3 at least, hopefully 0.7.1. -
06:21 AM Ruby Revision 8d929853 (git): Get rid of rb_matchext_struct
- It can simply be merged inside `RMatch`.
- 03:54 AM Ruby Revision 5e6e6781 (git): Bump taiki-e/install-action
- Bumps the github-actions group with 1 update in the / directory: [taiki-e/install-action](https://github.com/taiki-e/install-action).
Updates `taiki-e/install-action` from 2.75.22 to 2.75.23
- [Release notes](https://github.com/taiki-e... -
- Only few objects need to pass the starting shape.
-
- Almost every objects are now WB protected, with just a few
exceptions, hence we can provide a much simpler interface.
It's also much easier to find the remaining unprotected objects. -
- We only very rarely have the execution context available, so
it's preferable to provide a simpler default macro. -
- It's unused.
-
- It has been the default for a very long time and there is no good reason to
disable it. -
- It has been the default for a very long time and there is no good reason to
disable it. -
- It has been the default for a very long time and there is no good reason to
disable it. -
- It has been the default for a very long time and there is no good reason to
disable it. -
- It has been the default for a very long time and there is no good reason to
disable it. -
- It has been the default for a very long time and there is no good reason to
disable it. -
- It has been the default for a very long time and there is no good reason to
disable it. -
- It has been the default for a very long time and there is no good reason to
disable it. -
- It has been the default for a very long time and there is no good reason to
disable it. -
- It has been the default for a very long time and there is no good reason to
disable it. -
- It has been the default for a very long time and there is no good reason to
disable it. -
- It has been the default for a very long time and there is no good reason to
disable it.
04/27/2026
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10:54 PM Ruby Feature #21795: Methods for retrieving ASTs
- kddnewton (Kevin Newton) wrote in #note-21:
> If, regardless, you would like to keep pursuing it, you need to produce working code for those two examples.
Done:
https://github.com/eregon/error_highlight/pull/1
https://github.com/er... -
- kddnewton (Kevin Newton) wrote in #note-23:
> Unless you're once again suggesting we only rely on line/column, which as already mentioned multiple times and rejected multiple times, won't work.
Do you have a concrete example why it w... -
12:34 AM Ruby Feature #21795: Methods for retrieving ASTs
- Necessarily if the ABI changes, it means the AST shape changed. So how can you possibly expect it to work "whether the loaded prism gem ABI matches that or not". If the AST shape changed, then you're guessing. Unless you're once again su...
-
- tikkss (Tsutomu Katsube) wrote in #note-1:
> You might argue, "Why not run it in a multi-process?" However,
> ...
Did you measure the difference in memory usage?
I'd expect it to be small because each Ruby::Box has pretty much a cop... -
09:37 PM Ruby Feature #21953: Allow accessing unshareable objects within a Ractor-local Ruby Box
- I describe the use case of test-unit.
Now, we are implementing `Ractor` based parallel test runner. The tests
are run on non-main ractors.
We have met a lot of `Ractor::IsolationError`. Each time, We have tried
using `freeze` or ... -
- headius (Charles Nutter) wrote in #note-12:
> The target of the break is a semantic detail, not a syntactic one, and it is not determined at parse time.
It does, it is determined at parse time. Break is a syntactic construct.
> ..... -
- > It makes no sense for the range of the syntactic block here to include the entire expression of the call and its arguments.
If I'm understanding you correctly, then what you would like for source_range for the example for `foo` and ... - 04:37 PM Ruby Revision 5da79da5 (git): [ruby/prism] Fix missing Ripper doc caused by shim with `:nodoc:`
- This fixes the missing Ripper documentation, which currently returns 404 Not Found:
https://docs.ruby-lang.org/en/master/Ripper.html
We need to use `:stopdoc:`/`startdoc:` instead of `:nodoc:` to ignore the shim markup.
See also https:... -
03:51 PM Ruby Revision ef758280 (git): Remove warning in TestISeq#test_compile_file_options
-
- No longer takes an EC, `rb_ec_newobj_of` does.
-
- Unifies `rb_wb_unprotected_newobj_of` and `rb_wb_protected_newobj_of`.
-
- Re-opening, we need a syntax error for parse.y.
-
02:01 PM Ruby Bug #20409 (Closed): Missing reporting some invalid breaks
- Applied in changeset commit:git|558c10413990cb08b7750895b572b0b59eed0d28.
----------
[ruby/prism] Reject `END { break }` for Ruby 4.0
For [Bug #20409]
https://github.com/ruby/prism/commit/4848eb344e -
- For [Bug #20409]
https://github.com/ruby/prism/commit/4848eb344e -
- When `CALC_EXACT_MALLOC_SIZE` `ptr` isn't the real allocated pointer.
On macOS giving a wrong pointer to `malloc_usable_size` returns 0,
even with ASAN enabled, however on Linux it does fail. -
- 02:34 AM Ruby Revision 1de3deb5 (git): Bump the github-actions group across 1 directory with 2 updates
- Bumps the github-actions group with 2 updates in the / directory: [ruby/setup-ruby](https://github.com/ruby/setup-ruby) and [taiki-e/install-action](https://github.com/taiki-e/install-action).
Updates `ruby/setup-ruby` from 1.305.0 to ...
04/26/2026
-
- > The example of define_method(:foo) { ... } was given
define_method is just a method call like any other. It should not be included in the range for the syntactic construct that is the block.
What about do..end with a huge piece of c... -
- We should make sure start line respects the line passed into eval (not sure if that was implicit, but wanted to be sure to call it out).
For the heredocs, I agree that they should be omitted. We made that decision early with Prism bec... -
- kddnewton (Kevin Newton) wrote in #note-21:
> Further evidence that the ABI version is good: since the beginning of 2024, we would only have had to bump the ABI version twice.
How did you determine this? As shown in #note-13, `node... -
- @eregon — I have tried start/end line/column extensively. It did not work at all for Rails or error highlight, and I spent too long on it to revisit it. Also, it has been rejected twice in this thread alone. If, regardless, you would lik...
-
- hsbt (Hiroshi SHIBATA) wrote in #note-3:
> We already have a precedent where TruffleRuby CI for a library stayed broken for over a month with no one fixing it.
> ...
For the record, I did work hard on fixing that and the initial fix t... -
11:30 AM Ruby Revision c1487868 (git): merge revision(s) a05d5ecb1253521cf3b17815a97a152bac6c3399:
- [PATCH] Add write barriers on Hash#rehash
-
09:07 AM Ruby Revision 8e253ae2 (git): Fix writebarrier in backtrace_initialize_copy
-
-
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- We're allocating as we fill in the ISEQ, which could cause GC, so we
need to be careful values are marked and use write barriers.
When we were loading values here we were issuing write barriers, however
if the iseq was to be marked at t... -
-
-
- This could contain other hidden objects, and so needs to be hidden
itself so as to not be seen by ObjectSpace.each_object
1000.times { ObjectSpace.each_object(Hash){|o| puts o.inspect; ObjectSpace.reachable_objects_from(Class) } }'
... -
- Applied in changeset commit:git|f2d0ef269b47af7d0e658016903bd8917c32899a.
----------
Add and use rb_ivar_foreach_buffered
Previously, rb_ivar_foreach would walk up the shape tree, but yield
instance variables to the callback as it went... -
- Previously, rb_ivar_foreach would walk up the shape tree, but yield
instance variables to the callback as it went. If the object shape was
modified during this callback, particularly with removing an instance
variable, it could result in... -
- Previously this branch forgot to assign iv_count when used with a
generic ivar which is too_complex, which could result in it incorrectly
returning 0.
04/25/2026
-
04:44 AM Ruby Feature #22011: Hash tables with swiss table
- <img style="width: 810px;" src="clipboard-202604251344-sv2ro.png"><br>
The Student T test shows that the performance is almost identical, but the memory consumption is confidently lowered by about 3%. -
- The regression got better controlled with the new patch.
![]... -
- Applied in changeset commit:git|97c070c244ebd76cbf4d9a5b81dca08f4bda6f05.
----------
[DOC] Clarify array methods using `eql?`
[Bug #22013]
Up to a certain size, only `eql?` is used, but for larger arrays
a Hash is used an `#hash` beco... -
- > It would help to add a note similar to Object#eql? docs
Yes that is what I said.
https://github.com/ruby/ruby/pull/16786 -
- [Bug #22013]
Up to a certain size, only `eql?` is used, but for larger arrays
a Hash is used an `#hash` becomes necessary.
We could consider always checking `#hash` for consistency, but
that would decrease performance.
At the very lea...
04/24/2026
-
11:27 PM Ruby Bug #22015: Success without RUBY_BOX=1, Failure with RUBY_BOX=1
- Related: #21324, #21977
I believe this to be related to Symbol#to_proc, as changing `bundler/resolver/spec_group.rb:41` from:
```ruby
def dependencies
@dependencies ||= @specs.flat_map(&:expanded_dependencies).uniq.sort
... -
03:57 PM Ruby Bug #22015 (Open): Success without RUBY_BOX=1, Failure with RUBY_BOX=1
- ```
$ ruby -v
ruby 4.1.0dev (2026-04-24T13:35:04Z master 52ee497f36) +PRISM [arm64-darwin25]
```
```
$ ruby -e 'require "bundler/inline"; gemfile {}'
```
It ran fine as expected, but it failed when I added RUBY_BOX=1.
```
... - 11:14 PM Ruby Revision 49851c87 (git): Update default gems list at 6342f3ac55796e54c28b9a72b2898c [ci skip]
-
11:14 PM Ruby Revision 6342f3ac (git): [ruby/ipaddr] Bump the version to 1.2.9
- https://github.com/ruby/ipaddr/commit/f17f68bcab
-
- https://github.com/ruby/ipaddr/commit/a716379948
-
04:24 PM Ruby Bug #22016: ruby segfaults regularly
- And here is the output of the process itself:
```
asciidoctor40 -D. -a nofooter -b manpage vms-empire.adoc
/usr/pkg/lib/ruby/4.0.0/x86_64-netbsd/rbconfig.rb:311: [BUG] Segmentation fault at 0x00007f7fff7c3000
ruby 4.0.2 (2026-03-17 r... -
- When using ruby 4.0.2 on NetBSD-11.99.5/x86_64, built from pkgsrc, I often get core dumps.
Recently it was quite easy to get them using asciidoctor to build the documentation for vms-empire (but that is just one example).
Here is the... -
- From the bench results, we could see some very positive signals in some benches, but it also introduces some regressions, I would try if I could further narrowing down the regressions.
-
- Here are the ruby benches results.
| Area | interp | yjit... -
- I see that the benchmarks might be affected, since st_numhash/symbol hash path looks like returning constant 128 on bits 25..31, which increases the hash collision, under investigating.
-
- It is emitted for string-like symbols only
https://github.com/ruby/prism/commit/6d63302c7b -
12:00 PM Ruby Bug #22013: Array#| deduplication via eql? breaks when total element count exceeds ~16
- byroot (Jean Boussier) wrote in #note-1:
> You are missing the corresponding `hash` method
It would help to add a note similar to `Object#eql?` docs (https://docs.ruby-lang.org/en/master/Object.html#method-i-eql-3F):
> ...
Someone... -
- Is this a document issue?
-
09:09 AM Ruby Revision 0cb9c433 (git): Expose rb_int_parse_cstr() as public API
- Move rb_int_parse_cstr() declaration and RB_INT_PARSE_* flags from
internal/bignum.h to the public header include/ruby/internal/intern/bignum.h
so that C extensions can use this function without writing their own
prototype declarations.
... - 02:24 AM Ruby Revision 0a1cb0a8 (git): Bump taiki-e/install-action
- Bumps the github-actions group with 1 update in the / directory: [taiki-e/install-action](https://github.com/taiki-e/install-action).
Updates `taiki-e/install-action` from 2.75.19 to 2.75.20
- [Release notes](https://github.com/taiki-e... - 12:45 AM Ruby Revision 7e1039e1 (git): [ruby/rubygems] Update gem creation guide URL to rubygems.org
- Update the gem creation guide links in the CLI output and gemspac template.
The previous Bundler guide URL now redirects to RubyGems Guides.
https://github.com/ruby/rubygems/commit/0b469edf03 -
12:44 AM Ruby Revision 11e0e7cc (git): [ruby/rubygems] Point recovery instructions at bundle pristine under Bundler
- gem pristine does not reach gems that Bundler installed under
BUNDLE_PATH, so the guidance emitted when no_build_extension or
no_install_plugin is set needs a Bundler-native equivalent. Override
warn_skipped_extensions and warn_skipped_p... -
- The existing spec only checked that the wrapper is skipped on a fresh
install. Add a version upgrade case so that when a later version of the
gem no longer ships plugins, the previously generated wrapper is removed
even though no_install... -
- Gem::Resolver::GitSpecification#install calls Gem::Installer#build_extensions
directly, so the guard at the main install path did not cover git sources.
Move the options check into build_extensions itself so every caller skips the
build ... -
- https://github.com/ruby/rubygems/commit/51d3b3e76a
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> -
- When a gem upgrades from a version with plugins to one without,
generate_plugins normally removes the old wrapper files. Skipping
generate_plugins entirely with --no-install-plugin prevented this
cleanup, leaving stale wrappers that woul... -
- https://github.com/ruby/rubygems/commit/0659cc7739
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> -
- The quality spec requires all Bundler settings to be documented in
the bundle-config man page.
https://github.com/ruby/rubygems/commit/48d494326f
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> -
- Without this change, reinstalling or upgrading a gem with
--no-install-plugin would still execute a pre-existing plugin wrapper
left by a previous install via load_plugin. This defeats the opt-out.
https://github.com/ruby/rubygems/commi... -
- When extensions or plugins are skipped via --no-build-extension or
--no-install-plugin, warn the user and point them to the appropriate
gem pristine command to re-enable later.
https://github.com/ruby/rubygems/commit/d2e7f125db
Co-Auth... -
- Extend the --no-build-extension and --no-install-plugin support to
Bundler's installation paths. RubyGemsGemInstaller#install now
respects these options, and the settings are propagated from
Bundler::Settings through Source::RubyGems to ... -
- When plugins are not installed (e.g. via --no-install-plugin), the
plugin files do not exist on disk. Without this check, load_plugin
would attempt to load non-existent files and produce spurious
LoadError warnings.
https://github.com/r... -
- These options allow users to opt out of building native extensions and
installing plugins during gem installation, providing an equivalent to
npm's --ignore-scripts for mitigating arbitrary code execution vectors.
Both options default t... -
- I'm opposed to adopting this as a blanket policy.
We already have a precedent where TruffleRuby CI for a library stayed broken for over a month with no one fixing it.
https://github.com/ruby/rdoc/pull/1586
Even with the ability...
04/23/2026
- 11:58 PM Ruby Revision 16ad249a (git): [ruby/ipaddr] Fix private?, link_local? and loopback? methods to avoid mistaking public IPv6 as IPv4-mapped
- https://github.com/ruby/ipaddr/commit/c1383a3356
-
- It was mostly good, just a few edgecases:
* word_sep always only contains a single line. if there are multiple lines, it is also multiple word_sep
* Handle trailing whitespace
The excluded testcase is interpolation mixed with heredoc.
T... -
- Just a side note, enlarging `struct st_table` by 16B as some consequence for various objects sizes (e.g. Hash goes from pool 80 to pool 96, but a bunch of other structs embed `struct st_table`).
I had a vague plan to collocate the `bi... -
- I found some crash cases, that I need to fix it first. Also, I am running the full ruby-bench against the master branch on linux and windows to see if I've missed anything.
-
- add ruby bench results
-
- fix some regression bugs
-
- You are missing the corresponding `hash` method:
```ruby
def hash
[self.class, id].hash
end
```
It is somewhat implied by the mention of `#eql?` (hash based equality) but the documentation could be more explicit of cour... -
## Problem description
The documentation for `Array#|` states:
> Returns the union of self and other_array; duplicates are removed; order is preserved; items are compared using `eql?`
However, when the total number of elements...-
08:51 PM Ruby Feature #22014 (Open): Support `||` and `&&` operations in coverage
- https://bugs.ruby-lang.org/issues/13901 added support for branch coverage, but did not include `||` and `&&` branches
i.e.
```
def self.even_and_positive(number)
number.even? && number >= 0
end
```
Currently, this is consi... -
03:01 PM Ruby Feature #22012: Data class should respond to #dig
- This was a conscious design decision on Data implementaion, that underlines its nature.
Struct has a two-fold nature: it is both "a mutable structured object" and "a container" (has `#[]`, `#each`, includes `Enumerable`).
Data is ... -
12:18 PM Ruby Feature #22012 (Open): Data class should respond to #dig
- `Data`s cousin, `Struct` already responds to `#dig`. `Data` objects can show up in deeply nested objects as well, and the semantics of this should be nearly identical to `Struct#dig`
- 04:48 AM Ruby Revision 7d4941d3 (git): ZJIT: Remove `JITState#iseq` (#16774)
- While working on implementing a new inliner for ZJIT, I keep running into an issue where the wrong iseq pointer is being used. Since `JITState#iseq` and `FrameState#iseq` end up being the same value in the absence of inlining, I don't th...
- 01:40 AM Ruby Revision c25d561c (git): ZJIT: Add a YarvInsnIdx type for clarity (#16783)
04/22/2026
-
- This change adds a Swiss-table-inspired probing layer to Ruby's core `st_table`, and shrinks `st_table_entry` from 24 B to 16 B by moving the stored hash into a parallel array. It is built and enabled by default; `--disable-swiss-st` rev...
-
- C23 has qualifier-preserving standard library functions, so calling
strchr with a `const char *` will return a `const char *`. We can change
the type of the local variables because we don't mutate the strings. - 02:24 AM Ruby Revision f6b0f318 (git): Bump the github-actions group across 1 directory with 2 updates
- Bumps the github-actions group with 2 updates in the / directory: [ruby/setup-ruby](https://github.com/ruby/setup-ruby) and [taiki-e/install-action](https://github.com/taiki-e/install-action).
Updates `ruby/setup-ruby` from 1.302.0 to ... -
12:36 AM Ruby Revision 2f223e90 (git): [ruby/erb] Version 4.0.3.1
-
- Extends the @_init guard to def_method so that an ERB object created
via Marshal.load (which bypasses initialize) raises ArgumentError
instead of evaluating arbitrary source. def_module and def_class both
delegate to def_method and are c...
