mame (Yusuke Endoh)

	open	closed	Total
Assigned issues	4	150	154
Reported issues	16	354	370

Project	Roles	Registered on
Ruby	Committer, Security team, Infrastructure team	05/28/2008

06:55 AM Ruby Bug #22260 (Assigned): Ruby::Box: SIGSEGV when calling a method inside an isolated Proc defined at class/module body (RUBY_BOX=1): mame (Yusuke Endoh)
06:54 AM Ruby Bug #22258 (Assigned): Update bundled json to >= 2.19.2 on ruby_4_0 (CVE-2026-33210): mame (Yusuke Endoh)
06:48 AM Ruby Bug #21798 (Closed): `bundle install` command fails if touches `$LOAD_PATH` on `Ruby::Box` enabled: mame (Yusuke Endoh)

03:10 AM Ruby Bug #22259 (Closed): Arrays sharding a buffer segfault when concatenating with each other: Applied in changeset commit:git|46c287e2ca39da63d5164e2b7227308a41554c9a.
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Fix splicing an array that shares its buffer with a longer array
Arrays sharing one buffer have the same data pointer, so rb_ary_splice()
took `a` in ... mame (Yusuke Endoh)
03:10 AM Ruby Revision 46c287e2 (git): Fix splicing an array that shares its buffer with a longer array: Arrays sharing one buffer have the same data pointer, so rb_ary_splice()
took `a` in `b = a.dup; b.pop; b.concat(a)` for `b` itself and rebased
the source onto `b`'s shorter storage, copying uninitialized memory.
Have the callers tell wh... mame (Yusuke Endoh)
03:10 AM Ruby Revision 72a511da (git): Split rb_ary_splice() into a pointer version and an array version: Most callers have the replacement as an array object; let them pass it
directly.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> mame (Yusuke Endoh)

06:36 PM Ruby Bug #22259: Arrays sharding a buffer segfault when concatenating with each other: Confirmed and reproduced. Thanks for the report.
While looking into it I found that the same line causes another bug.
```ruby
a = [:A, :B, :C, :D, :E]
b = a[1, 4] #=> [:B, :C, :D, :E]
a[0, 0] = b
p a # expected: [:B, :C... mame (Yusuke Endoh)
08:36 AM Ruby Revision 0dc80ae3 (git): Bump the vcpkg builtin-baseline for the gmp msys2 404: The gmp portfile at the previous baseline downloads
autoconf2.71-2.71-3-any.pkg.tar.zst from msys2 mirrors by a pinned URL,
but msys2 has rotated the package to -4, so every mirror returns 404 and
Windows CI fails to build gmp whenever t... mame (Yusuke Endoh)

07:53 AM Ruby Feature #22250 (Feedback): Add an only: keyword to Coverage.peek_result: I have sped up `peek_result`: https://github.com/ruby/ruby/pull/18406 (already merged). It caches a template of the branch/method coverage result structures, and each `peek_result` just dups the template and fills in the counters.
I r... mame (Yusuke Endoh)
07:50 AM Ruby Feature #22250 (Closed): Add an only: keyword to Coverage.peek_result: Applied in changeset commit:git|d43737d2a8a66c4eaae5035695ee585ef8dc452c.
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Cache a template of the branch coverage result [Bug #22250]
Coverage.peek_result rebuilt the nested branch coverage hash on every
call, and hashing it... mame (Yusuke Endoh)

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