Ruby Issue Tracking System

08/11/2025

08:27 PM Ruby Bug #21151: IO and StringIO raise FrozenError even for read-only methods

Edit: previously I referred to non-writable state, but in actuality any state of `StringIO` or `IO` should be safe to read even if the object itself is frozen. There's no need for either type to be mutable just to read `sync` or `externa... headius (Charles Nutter)

08:21 PM Ruby Bug #21151: IO and StringIO raise FrozenError even for read-only methods

> for an IO to be read it has to be writable
In order to read data out of an IO, sure. But the methods I mentioned do not require write access to the IO; they just return non-writable state.
> ...
The non-writeable state could be p... headius (Charles Nutter)

05/09/2025

10:01 PM Ruby Feature #15408: Deprecate ObjectSpace._id2ref

> The question is rather why you want _id2ref to be deprecated
I want it removed, actually! 😀
You have seen all the reasons why it is problematic, but on top of all that it was never intended to be an official API in the first plac... headius (Charles Nutter)

05/08/2025

06:05 PM Ruby Feature #15408: Deprecate ObjectSpace._id2ref

@Dan0042 I think @Eregon covered what I was going to say, but I'd also like to know **why** you want `_id2ref` to stick around. There's generally better ways (more reliable, easier for VMs to implement) to everything I have seen it used ... headius (Charles Nutter)

09:03 AM Ruby Revision 5a0306f9 (git): [ruby/strscan] jruby: Pass end index to byteListToInum

(https://github.com/ruby/strscan/pull/150)
These parse methods take begin and end indices, not begin and length. A
test is included.
Fixes https://github.com/jruby/jruby/issues/8823
https://github.com/ruby/strscan/commit/9690e39e73 headius (Charles Nutter)

09:03 AM Ruby Revision 8685a81e (git): [ruby/strscan] jruby: Check if len++ walked off the end

(https://github.com/ruby/strscan/pull/153)
Fix https://github.com/ruby/strscan/pull/152
CRuby can walk off the end because there's always a null byte. In JRuby,
the byte array is often (usually?) the exact size of the string. So we
nee... headius (Charles Nutter)

03/31/2025

10:52 PM Ruby Feature #15574: Prohibit to pass a block on super() implicitly

There's still a problem here when an "unused block" warning is emitted from native code.
The current behavior is actually quite counter-intuitive. Take this example of extending `Array` and overriding `index`.
```ruby
class MyArra... headius (Charles Nutter)

03/03/2025

06:05 PM Ruby Bug #21162: Regexp casefold mismatch for latin1 supplemental chars

@nobu Certainly could be and the fix looks similar.
@mjrzasa What do you think? Does your fix repair this problem? headius (Charles Nutter)

02/27/2025

09:33 PM Ruby Bug #21162 (Closed): Regexp casefold mismatch for latin1 supplemental chars

Originally reported to joni repo with a possible fix here: https://github.com/jruby/joni/pull/20
From that PR:
> When a character is less than or equal to single byte size (0xff),
> ...
As a Ruby example:
```
$ ruby -v -e 'p(/... headius (Charles Nutter)

02/21/2025

12:37 AM Ruby Revision 7d798464 (git): [ruby/stringio] Allow seek when underlying string is frozen

(https://github.com/ruby/stringio/pull/121)
Fixes https://github.com/ruby/stringio/pull/119. Adds a test for this expectation.
https://github.com/ruby/stringio/commit/3f90fe44c6 headius (Charles Nutter)