Ruby Issue Tracking System

01/16/2025

03:56 PM Ruby master Bug #21039: Ractor.make_shareable breaks block semantics (seeing updated captured variables) of existing blocks

I think it's a bug, because it breaks fundamental Ruby block semantics.
No Ractor method or functionality should be ... Eregon (Benoit Daloze)

01/15/2025

02:49 PM Ruby master Bug #21040 (Rejected): String#next! method does not mutate $& variable

`$&` returns a new String on every usage, so this is fully expected:
```
$ ruby -e '"a" =~ /a/; p $&.object_id; p $... Eregon (Benoit Daloze)

10:12 AM Ruby master Feature #21033: Allow lambdas that don't access `self` to be Ractor shareable

tenderlovemaking (Aaron Patterson) wrote in #note-15:
> Until this ticket, I was operating under the assumption it w... Eregon (Benoit Daloze)

09:57 AM Ruby master Bug #21039 (Open): Ractor.make_shareable breaks block semantics (seeing updated captured variables) of existing blocks

```ruby
def make_counter
count = 0
nil.instance_exec do
[-> { count }, -> { count += 1 }]
end
end
... Eregon (Benoit Daloze)

01/14/2025

07:52 PM Ruby master Feature #21033: Allow lambdas that don't access `self` to be Ractor shareable

I played with `Ractor.make_shareable` and it already mutates a Proc in place, breaking the basic Ruby semantics of re... Eregon (Benoit Daloze)

07:26 PM Ruby master Feature #21033: Allow lambdas that don't access `self` to be Ractor shareable

> `isolated { lambda { ... } }`
Maybe this could be shortened to `isolated { ... }` or so, if that method is declare... Eregon (Benoit Daloze)

07:22 PM Ruby master Feature #21033: Allow lambdas that don't access `self` to be Ractor shareable

tenderlovemaking (Aaron Patterson) wrote in #note-11:
> Adding syntax makes it much harder to port existing applicati... Eregon (Benoit Daloze)

02:26 PM Ruby master Feature #21033: Allow lambdas that don't access `self` to be Ractor shareable

This also breaks that analysis:
```
$ ruby -e 'p lambda { ->{}.binding.receiver }.call'
main
$ ruby --dump=insns... Eregon (Benoit Daloze)

02:24 PM Ruby master Feature #21033: Allow lambdas that don't access `self` to be Ractor shareable

```
$ ruby -e 'p lambda { Kernel.binding.receiver }.call'
main
$ ruby --dump=insns -e 'p lambda { Ker... Eregon (Benoit Daloze)

01:15 PM Ruby master Bug #21032: `Module#autoload?` is slow when `$LOAD_PATH` contains a relative path

byroot (Jean Boussier) wrote in #note-2:
> @fxn tracked it down to https://github.com/emailage/Emailage_Ruby/blob/64... Eregon (Benoit Daloze)