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From 08/28/2020 to 09/03/2020

09/03/2020

11:35 PM Feature #16990: Sets: operators compatibility with Array
Eregon (Benoit Daloze) wrote in #note-6:
> I don't expect Array "set" operations to magically know about the Set representation.
I would like to expect it 😆
> ...
Yes
> And then that makes the return type inconsistent with `set...
marcandre (Marc-Andre Lafortune)
11:29 PM Feature #16990: Sets: operators compatibility with Array
knu (Akinori MUSHA) wrote in #note-4:
> We can probably define Set#to_ary if it's OK, and Array#+ will be able to deal with a set. Let us think about the downsides...
While this may be a good thing, and at least make them interopera...
marcandre (Marc-Andre Lafortune)
02:00 PM Feature #16990: Sets: operators compatibility with Array
Because Array and Set are fundamentally different, I think ensuring both operands have the same type, explicitly or internally, is completely reasonable.
I don't expect Array "set" operations to magically know about the Set representati...
Eregon (Benoit Daloze)
08:50 AM Feature #16990: Sets: operators compatibility with Array
As for the result type, I think Array operators should return arrays. Otherwise `array += set` would turn the variable `array` to a Set and that would be a surprise. knu (Akinori MUSHA)
08:47 AM Feature #16990: Sets: operators compatibility with Array
We can probably define Set#to_ary if it's OK, and Array#+ will be able to deal with a set. Let us think about the downsides... knu (Akinori MUSHA)
12:09 AM Feature #16990: Sets: operators compatibility with Array
Eregon (Benoit Daloze) wrote in #note-2:
> Isn't `[1].to_set + Set[2]` a good workaround here?
Did you mean only for `+`, or for all operators? Take `-` for example... `ary.to_set - set` the `to_set` is wasteful, and I don't want to ...
marcandre (Marc-Andre Lafortune)
11:09 PM Feature #17100: Ractor: a proposal for a new concurrent abstraction without thread-safety issues
ko1 (Koichi Sasada) wrote in #note-28:
Thanks for all your replies!
> ```ruby
> ...
Surprising to me, I think unintended, I filed #17146.
> I believe `Ractor#send` is best name because it sends an message.
"Sending a message...
Eregon (Benoit Daloze)
08:26 PM Feature #17100: Ractor: a proposal for a new concurrent abstraction without thread-safety issues
marcandre (Marc-Andre Lafortune) wrote in #note-24:
> I find `Ractor` very promising 🎉
Thanks, I hope so.
> ...
I introduced `shareable` flag into objects (`FL_SHAREABLE` in C level).
Once the interpreter found it is immutable, this fl...
ko1 (Koichi Sasada)
08:18 PM Feature #17100: Ractor: a proposal for a new concurrent abstraction without thread-safety issues
Eregon (Benoit Daloze) wrote in #note-23:
> Here is a problematic case on `master` sharing mutable state via `define_method`:
Exactly. `define_method` is also the big issue...
The Proc object referred from defined method is not isolated...
ko1 (Koichi Sasada)
08:14 PM Feature #17100: Ractor: a proposal for a new concurrent abstraction without thread-safety issues
I don't care about the name `recv` and `receive`.
Eregon (Benoit Daloze) wrote in #note-19:
> @ko1, @matz Which one(s) do you like in this list?
I believe `Ractor#send` is best name because it sends an message.
It is conflicts wi...
ko1 (Koichi Sasada)
08:04 PM Feature #17100: Ractor: a proposal for a new concurrent abstraction without thread-safety issues
> I feel Ractor#send mutates the Ractor's state and frozen Ractor shouldn't accept any messages.
However, I don't against to freeze Ractors.
```ruby
q = Queue.new
q.freeze
q << 1
```
is working (I'm not sure it is intentional)...
ko1 (Koichi Sasada)
08:01 PM Feature #17100: Ractor: a proposal for a new concurrent abstraction without thread-safety issues
Eregon (Benoit Daloze) wrote in #note-18:
> @ko1 Can you review these potential performance overheads of adding Ractors? (and so potential regressions for code not using Ractors)
> ...
Yes. I didn't think it is huge cost.
BUT
`...
ko1 (Koichi Sasada)
07:46 PM Feature #17100: Ractor: a proposal for a new concurrent abstraction without thread-safety issues
Sorry I missed your question.
Eregon (Benoit Daloze) wrote in #note-8:
> Instance variables on modules should probably be consistent with constants.
> ...
I think we can expect "Constants" are defined at once at the beginning of cod...
ko1 (Koichi Sasada)
06:50 PM Feature #17100: Ractor: a proposal for a new concurrent abstraction without thread-safety issues
I find `Ractor` very promising 🎉
The impact is severily limited without support for user-based immutable types. Is that planned for 3.0?
I'm curious what is the technical difficulty. I mean, can't existing builtin `freeze` check fo...
marcandre (Marc-Andre Lafortune)
02:43 PM Feature #17100: Ractor: a proposal for a new concurrent abstraction without thread-safety issues
@mame Regarding OptCarrot, I think having `deep_freeze` would be a great help.
But I wonder, maybe `Object.deep_freeze` would work to freeze all constants very succintly?
Some constants expect to be mutable, so I guess it doesn't work ...
Eregon (Benoit Daloze)
02:32 PM Feature #17100: Ractor: a proposal for a new concurrent abstraction without thread-safety issues
joanbm (Joan Blackmoore) wrote in #note-20:
I'll disregard your offensive comment, I tried to summarize the poll as good as I can.
This is my interpretation of the poll, and everyone can interpret as they want.
Of course it's a poll...
Eregon (Benoit Daloze)
12:11 PM Feature #17100 (Closed): Ractor: a proposal for a new concurrent abstraction without thread-safety issues
Applied in changeset commit:git|79df14c04b452411b9d17e26a398e491bca1a811.
----------
Introduce Ractor mechanism for parallel execution
This commit introduces Ractor mechanism to run Ruby program in
parallel. See doc/ractor.md for more ...
ko1 (Koichi Sasada)
10:53 PM Bug #17146 (Closed): Queue operations are allowed after it is frozen
```
[1] pry(main)> q = Queue.new
=> #<Thread::Queue:0x000056263683aee8>
[2] pry(main)> q.freeze
=> #<Thread::Queue:0x000056263683aee8>
[3] pry(main)> q << 1
=> #<Thread::Queue:0x000056263683aee8>
[4] pry(main)> q.pop
=> 1
[5] pr...
Eregon (Benoit Daloze)
09:44 PM Feature #16989: Sets: need ♥️
matz (Yukihiro Matsumoto) wrote in #note-17:
> I agree with some of your proposals (#16990, #16991, #16993, #16995). I want @knu to work on this. If I missed something, he will tell us.
Thank you for reviewing these :-)
> ...
Righ...
marcandre (Marc-Andre Lafortune)
09:44 PM Feature #16989: Sets: need ♥️
knu (Akinori MUSHA) wrote in #note-18:
> OK, I think it's good for us now to diverge from the original philosophy of Set when I first wrote it and pursue the performance and integrity with other parts of Ruby. There are many parts in S...
marcandre (Marc-Andre Lafortune)
07:48 AM Feature #16989: Sets: need ♥️
OK, I think it's good for us now to diverge from the original philosophy of Set when I first wrote it and pursue the performance and integrity with other parts of Ruby. There are many parts in Set where I avoided optimization in order t... knu (Akinori MUSHA)
01:14 AM Feature #16989: Sets: need ♥️
I agree with some of your proposals (#16990, #16991, #16993, #16995). I want @knu to work on this. If I missed something, he will tell us.
I strongly disagree with #16994. There's no evidence we need frozen sets of strings or symbols ...
matz (Yukihiro Matsumoto)
09:41 PM Revision d4585e74 (git): Avoid potential for rb_raise() while crashing
rb_obj_raw_info is called while printing out crash messages and
sometimes called during garbage collection. Calling rb_raise() in these
situations is undesirable because it can start executing ensure blocks.
alanwu (Alan Wu)
08:44 PM Feature #17145: Ractor-aware `Object#deep_freeze`
> I think these objects should stop the propagation. The name make_shareable_via_ractor_by_deep_freezing_what_is_necessary would be more accurate but too long 😆
> ...
For Ractor, it is very clear. Another candidate is `to_shareable`?
...
ko1 (Koichi Sasada)
07:39 PM Feature #17145: Ractor-aware `Object#deep_freeze`
ko1 (Koichi Sasada) wrote in #note-4:
> One concern about the name "freeze" is, what happens on shareable objects on Ractors.
> ...
I think these objects should stop the propagation. The name `make_shareable_via_ractor_by_deep_freezing_w...
marcandre (Marc-Andre Lafortune)
07:34 PM Feature #17145: Ractor-aware `Object#deep_freeze`
Eregon (Benoit Daloze) wrote in #note-3:
> A dynamic call to `freeze` causes extra calls
Yes
> ...
That won't add any noticeable overhead
> Is there a compelling reason to call a user-defined `freeze` for every value?
Yes. S...
marcandre (Marc-Andre Lafortune)
07:27 PM Feature #17145: Ractor-aware `Object#deep_freeze`
Maybe we should have a method that ensure an object graph is shareable?
Not sure what a good name for that would be (shareable is hard to spell).
So that would noop for special shareable objects like you say, and freeze the rest.
Note...
Eregon (Benoit Daloze)
07:20 PM Feature #17145: Ractor-aware `Object#deep_freeze`
One concern about the name "freeze" is, what happens on shareable objects on Ractors.
For example, Ractor objects are shareable and they don't need to freeze to send beyond Ractor boundary.
I also want to introduce Mutable but sharea...
ko1 (Koichi Sasada)
07:06 PM Feature #17145: Ractor-aware `Object#deep_freeze`
A dynamic call to `freeze` causes extra calls, and needs checks that it was indeed frozen.
So for efficiency I think it would be better to mark as frozen internally without a call to `freeze` on every value.
Also a leaf `freeze` call...
Eregon (Benoit Daloze)
06:42 PM Feature #17145 (Rejected): Ractor-aware `Object#deep_freeze`
I'd like to propose `Object#deep_freeze`:
Freezes recursively the contents of the receiver (by calling `deep_freeze`) and
then the receiver itself (by calling `freeze`).
Values that are shareable via `Ractor` (e.g. classes) are neve...
marcandre (Marc-Andre Lafortune)
07:29 PM Misc #17138: DevelopersMeeting20200925Japan
* [Feature #17143] Improve support for warning categories (jeremyevans0)
* Warning.warn :category keyword support was approved last developer meeting.
* I would like to add Kernel#warn :category keyword for Ruby-level warnings, and...
jeremyevans0 (Jeremy Evans)
09:24 AM Misc #17138: DevelopersMeeting20200925Japan
* [Bug #17144] Tempfile.open { ... } does not unlink the file (eregon)
* OK to keep the change and make Tempfile.open(&block) finally intuitive? Some usages might need updating but it seems very few.
* `SomeClass.open { ... }` shou...
Eregon (Benoit Daloze)
07:09 PM Revision e0a749c0 (git): * 2020-09-04 [ci skip]
git[bot]
07:07 PM Revision 3f922f3b (git): don't use toplevel return
Toplevel return is supported after Ruby 2.4, so don't use it
for older BASERUBY.
ko1 (Koichi Sasada)
06:56 PM Bug #17144: Tempfile.open { ... } does not unlink the file
Dan0042 (Daniel DeLorme) wrote in #note-6:
> -1 for breaking compatibility with no deprecation, just for the sake of perceived consistency.
Not "the sake of perceived consistency".
It's leaking a resource (a file on the disk) outsid...
Eregon (Benoit Daloze)
03:46 PM Bug #17144: Tempfile.open { ... } does not unlink the file
> `Tempfile.open{ }` returns nil
I apologize for this brain fart. `Tempfile.open{ }` returns the result of the block. So it's entirely likely that someone would use
`tmp = Tempfile.open{ |f| f.write(data); f }`
instead of
`tmp = Tempf...
Dan0042 (Daniel DeLorme)
03:15 PM Bug #17144: Tempfile.open { ... } does not unlink the file
If we could allow incompatible changes of Tempfile in 3.0 or later, it is a good chance to reimplement it as a subclass of File without delegate.rb.
#7148
Glass_saga (Masaki Matsushita)
03:14 PM Bug #17144: Tempfile.open { ... } does not unlink the file
-1 for breaking compatibility with no deprecation, just for the sake of perceived consistency.
But then again it's important to note that `Tempfile.open{ }` returns nil, so the only way to cause an incompatibility is if the blocks "le...
Dan0042 (Daniel DeLorme)
01:44 PM Bug #17144: Tempfile.open { ... } does not unlink the file
It seems hard to deprecate here without changing behavior. Any idea?
OTOH, when an usage relied on the file to still exist it should be quite clear what happens (the file will not be there, so an exception).
It took me seconds to find ...
Eregon (Benoit Daloze)
01:15 PM Bug #17144: Tempfile.open { ... } does not unlink the file
One idea: creating tmpfile library and
Tmpfile.open calls Tempfile.create.
This also resolves an inconsistency between tempfile.rb and tmpdir.rb.
For this consistency, File.tmpfile may be better than Tmpfile.open
because it is simi...
akr (Akira Tanaka)
12:58 PM Bug #17144: Tempfile.open { ... } does not unlink the file
I sympathize with this issue.
I wish Tempfile.open had worked like Tempfile.create from the beginning.
But changing it is incompatible.
It is not our (current) practice that introducing an incompatible change without prior notice.
...
akr (Akira Tanaka)
09:32 AM Bug #17144: Tempfile.open { ... } does not unlink the file
Out of these 2 usages that relied on the file to still exist, 1 was incorrect:
https://github.com/ruby/ruby/blob/e8c3872555fc85640505974e6b1c39d315572689/lib/reline/line_editor.rb#L2085-L2087
The GC can trigger anywhere between these 3 l...
Eregon (Benoit Daloze)
09:21 AM Bug #17144 (Closed): Tempfile.open { ... } does not unlink the file
```
ruby -rtempfile -e 'Tempfile.open("txt") { |f| $path = f.path }; p File.exist?($path)'
true
```
but it should be `false`.
This means even after the block finishes to execute the file still exists on a disk
And this might or n...
Eregon (Benoit Daloze)
04:37 PM Feature #17140: Merge Enumerable#grep(_v) with Enumerable#select/reject
I imagine that `Set['and', 'the', 'of']` was meant. marcandre (Marc-Andre Lafortune)
07:01 AM Feature #17140: Merge Enumerable#grep(_v) with Enumerable#select/reject
I guess I understand the first example. Just to make sure:
```
[-3, 4, 0, 8.5, 20, 5].select(1..10) #=> [4, 8.5, 5]
```
But for the second example, I don't understand `{ 'and', 'the', 'of' }`. Is that supposed to be an array, or ...
duerst (Martin Dürst)
02:57 PM Feature #17016: Enumerable#accumulate
Dan0042 (Daniel DeLorme) wrote in #note-33:
> ... what about `#cumulative` ?
Oh that's interesting! I had leapt straight to verbs since that tends to be the pattern for methods that transform enumerables, but the examples of `[1,2,3...
parker (Parker Finch)
02:26 PM Feature #17104: Do not freeze interpolated strings when using frozen-string-literal
ko1 (Koichi Sasada) wrote in #note-21:
> I found that freezing interpolated strings are help for Ractor programming with constants.
Right, anything deeply frozen is helpful for Ractor.
But interpolated Strings are probably not that comm...
Eregon (Benoit Daloze)
12:29 AM Feature #17104: Do not freeze interpolated strings when using frozen-string-literal
I found that freezing interpolated strings are help for Ractor programming with constants.
```ruby
class C
i = 10
STR = "foo#{i}"
end
```
ko1 (Koichi Sasada)
02:08 PM Feature #16992: Sets: officially ordered
+1 from me. Hash if officially ordered.
Making Set unordered would likely break many things.
In practice I would think many Set usages already assume it ordered.
Similar to what I said in https://bugs.ruby-lang.org/issues/15281#note-9...
Eregon (Benoit Daloze)
02:03 PM Feature #16994: Sets: shorthand for frozen sets of symbols / strings
Dan0042 (Daniel DeLorme) wrote in #note-3:
> I just thought of something...
> ...
That already works on TruffleRuby (and for more than this specific case), it needs a JIT, inlining (also through builtins like #include?) and escape anal...
Eregon (Benoit Daloze)
03:03 AM Feature #16994: Sets: shorthand for frozen sets of symbols / strings
I just thought of something...
In the same way that `"str".freeze` is optimized to be deduplicated, `%w[a b].include?(obj)` could be optimized so it becomes equivalent to `obj == -"a" || obj == -"b"`, or something around those lines. Th...
Dan0042 (Daniel DeLorme)
12:11 PM Revision b52513e2 (git): skip Ractor tests on Compiler tests
This implementation has memory corruption errors so and
it causes BUG on rare occasions. This commit skips
suspect tests on Github actions Compiler tests.
ko1 (Koichi Sasada)
12:11 PM Revision 79df14c0 (git): Introduce Ractor mechanism for parallel execution
This commit introduces Ractor mechanism to run Ruby program in
parallel. See doc/ractor.md for more details about Ractor.
See ticket [Feature #17100] to see the implementation details
and discussions.
[Feature #17100]
This commit does ...
ko1 (Koichi Sasada)
09:51 AM Revision eeb5325d (git): Hoisted out warn_deprecated
nobu (Nobuyoshi Nakada)
08:54 AM Revision 705b908f (git): Fix a typo [ci skip]
znz (Kazuhiro NISHIYAMA)
07:49 AM Revision 7b9ef667 (git): Don't call to_s in const_set
Follow up for 5e16857315bf55307c5fc887ca6f03bfa0630a93. Calling a method
in the middle of const_set adds a way that it would fail. It also makes
it inconsistent with declaring a constant using `::`, which doesn't call
`to_s`.
alanwu (Alan Wu)
06:14 AM Revision 50b18e81 (git): configure: detect that there is no g++
AC_PROG_CXX checks for several C++ compilers INCLUDING g++. When none
of them were found it sets the CXX variable to be g++. This doesn't
make any sense. Absense of g++ has already been made sure.
Because we don't want insanity (that...
shyouhei (Shyouhei Urabe)
03:30 AM Feature #17122 (Closed): Add category to Warning#warn
https://github.com/ruby/ruby/pull/3505 has been merged. Thank you Eileen! mame (Yusuke Endoh)
03:06 AM Feature #16786: Light-weight scheduler for improved concurrency.
Since this thread became long and complex, it was hard for me to grasp the latest proposal. Correct me if I missed something.
# How to create `async I/O fiber`
I tentatively call fibers with context switching on I/O operations `asy...
matz (Yukihiro Matsumoto)
01:32 AM Feature #16986: Anonymous Struct literal
One more point: I haven't seen much examples of similar features in other languages. The only suggestion I saw was that of a similarity to Python tuples. But tuples are much closer to Arrays than to Structs or hashes. The easiest descrip... duerst (Martin Dürst)
12:04 AM Feature #17143 (Open): Improve support for warning categories
Support was recently added for Warning.warn to accept a `category` keyword. However, the initial implementation was limited to having `rb_warn_deprecated` and `rb_warn_deprecated_to_remove` use the `:deprecated` value for the `category`... jeremyevans0 (Jeremy Evans)

09/02/2020

11:45 PM Revision 3fb25562 (git): add lldb functions for getting the heap page / heap page body
tenderlovemaking (Aaron Patterson)
11:45 PM Revision 933035d3 (git): support T_MATCH in lldb
tenderlovemaking (Aaron Patterson)
09:54 PM Revision 0b81a484 (git): Initialize new T_OBJECT as ROBJECT_EMBED
Previously, when an object is first initialized, ROBJECT_EMBED isn't
set. This means that for brand new objects, ROBJECT_NUMIV(obj) is 0 and
ROBJECT_IV_INDEX_TBL(obj) is NULL.
Previously, this combination meant that the inline cache wou...
jhawthorn (John Hawthorn)
09:15 PM Feature #16989: Sets: need ♥️
Eregon (Benoit Daloze) wrote in #note-14:
> Also, does moving Set to core mean rewriting it to C?
> ...
I'm not sure, but `Set` is quite small, most of the processing uses `Hash`...
> Only moving Set but not SortedSet in core would ...
marcandre (Marc-Andre Lafortune)
09:01 PM Feature #16989: Sets: need ♥️
Dan0042 (Daniel DeLorme) wrote in #note-13:
> I don't get that part. If you have a literal like `{ x, y, z }` then x/y/z can be any type of object. There's no restriction. But I agree `Set[]` is short and good enough.
Right, I was th...
Eregon (Benoit Daloze)
09:00 PM Feature #16989: Sets: need ♥️
Also, does moving Set to core mean rewriting it to C?
I think that would be suboptimal, because every implementation would have to maintain its own native implementation then (or reuse the C extension).
It would also hurt readability.
...
Eregon (Benoit Daloze)
02:45 PM Feature #16989: Sets: need ♥️
> which would anyway restrict the type of keys
I don't get that part. If you have a literal like `{ x, y, z }` then x/y/z can be any type of object. There's no restriction. But I agree `Set[]` is short and good enough.
Dan0042 (Daniel DeLorme)
01:44 PM Feature #16989: Sets: need ♥️
Eregon (Benoit Daloze) wrote in #note-11:
> IMHO there is no need for a literal Set notation (which would anyway restrict the type of keys, etc).
I agree. `Set[...]` works very well already for constructing sets at runtime out of any...
marcandre (Marc-Andre Lafortune)
09:52 AM Feature #16989: Sets: need ♥️
IMHO there is no need for a literal Set notation (which would anyway restrict the type of keys, etc).
> Some of the upcoming feature requests would be easier (or only possible) to implement were Sets builtin.
@marcandre Which featu...
Eregon (Benoit Daloze)
08:59 PM Feature #16990: Sets: operators compatibility with Array
Isn't `[1].to_set + Set[2]` a good workaround here? Eregon (Benoit Daloze)
08:46 PM Bug #9815: attr_reader doesn't warn on a uninitialized instance variable
What was the rationale here to have different behavior?
Which C function is used by `attr_reader` seems an implementation detail.
Eregon (Benoit Daloze)
08:33 PM Feature #15628: init_inetsock_internal should fallback to IPv4 if IPv6 is unreachable
Hi!
Any feedback about this? We're considering implementing "Happy Eyeballs" in rubygems by monkeypatching `TCPSocket.new`, in order to fix longstanding issues with `gem install` timing out on ipv6-capable clients. But it would feel m...
deivid (David Rodríguez)
07:44 PM Revision eada6350 (git): Add category to `rb_warn_deprecated`
PR https://github.com/ruby/ruby/pull/3418 added a category to
`rb_warn_deprecated_to_remove` but not to `rb_warn_deprecated`. This
adds the same code to `rb_warn_deprecated` so that those warnings also
get a category.
This change also a...
eileencodes (Eileen Uchitelle)
07:33 PM Bug #14437 (Closed): Integer == doesn't work with coerce since 2.4 (and != since 1.9). Should it?
taw (Tomasz Wegrzanowski) wrote in #note-2:
> Looking at the code fix_equal(x,y) when y was of non-core class used to call num_equal,(x,y) which then did reverse call for y==x,
> ...
The `Integer#==` method is documented to only return...
jeremyevans0 (Jeremy Evans)
07:21 PM Feature #17100: Ractor: a proposal for a new concurrent abstraction without thread-safety issues
@Eregon (Benoit Daloze) https://bugs.ruby-lang.org/issues/17100#note-19
> Re naming of receiving a message, here is the poll I made:
> ...
Can you just cease your manipulative behaviour, based on faulty generalization resoning in this ...
joanbm (Joan Blackmoore)
07:02 PM Revision 54fb8fb6 (git): Comply with guide for method doc: array.c (#3506)
Methods:
any?
all?
one?
none?
sum
shuffle!
shuffle
sample
burdettelamar (Burdette Lamar)
05:45 PM Bug #17139 (Closed): [doc] StringScanner#matched_size seems to be byte-oriented but that is not documented
Applied in changeset commit:git|d9b8411a7be4c9e300b75bc374f29e6965ab3040.
----------
Document that StringScanner#matched_size returns size in bytes [ci skip]
Fixes [Bug #17139]
jeremyevans (Jeremy Evans)
05:41 PM Revision d9b8411a (git): Document that StringScanner#matched_size returns size in bytes [ci skip]
Fixes [Bug #17139] jeremyevans (Jeremy Evans)
05:38 PM Bug #15417 (Closed): Pathname case insensitive comparison
Applied in changeset commit:git|cc5b7ed1dccc6a5cffa5c52778c6db8794722404.
----------
Document limitation of Pathname#relative_path_from [ci skip]
This method is explicitly documented to not access the filesystem,
and the only way to ge...
jeremyevans (Jeremy Evans)
05:32 PM Bug #15417: Pathname case insensitive comparison
I don't think this is fixable. SAME_PATHS is only used in `relative_path_from`, which is explicitly documented to not access the filesystem. I'll update the documentation for `relative_path_from` to explain the issue. jeremyevans0 (Jeremy Evans)
05:38 PM Revision 0938bad0 (git): * 2020-09-03 [ci skip]
git[bot]
05:34 PM Revision cc5b7ed1 (git): Document limitation of Pathname#relative_path_from [ci skip]
This method is explicitly documented to not access the filesystem,
and the only way to get the correct behavior for a case where the
filesystem's case sensitivity differs from the operating system
default would be to access the filesyste...
jeremyevans (Jeremy Evans)
05:21 PM Feature #16986: Anonymous Struct literal
I'm also unconvinced of a good use case and why creating a `MyResult = Struct.new(:some_value, :name)` is really something that should be "saved". marcandre (Marc-Andre Lafortune)
12:17 PM Feature #16986: Anonymous Struct literal
mame (Yusuke Endoh) wrote in #note-38:
> So, external input like JSON data is not the target of this proposal. Rather, this proposal is just a variant of Struct, which allows to omit the definition line: `Foo = Struct.new(...)`.
I...
duerst (Martin Dürst)
05:03 PM Misc #17137: Cooperation on maintaining official docker ruby images
I _believe_ official images also want to be minimal and they are not explicitly designed for Rails. So in my opinion, many of the patches you have made to make your images thinner would probably be accepted upstream and benefit a larger ... deivid (David Rodríguez)
02:24 PM Misc #17137: Cooperation on maintaining official docker ruby images
There were three reasons why I started rubylang/ruby as separated from Docker's official ruby.

The first reason is that my personal reason. I needed a simplest pure ruby image. This image should be in the state after `make install` ...
mrkn (Kenta Murata)
03:35 PM Feature #17055: Allow suppressing uninitialized instance variable and method redefined verbose mode warnings
Eregon (Benoit Daloze) wrote in #note-22:
> FWIW I noticed that using `attr_reader` does not warn if the @ivar is not set:
> ...
I don't want to define private methods for all of the instance variables in use just to work around verbos...
jeremyevans0 (Jeremy Evans)
02:57 PM Feature #17055: Allow suppressing uninitialized instance variable and method redefined verbose mode warnings
FWIW I noticed that using `attr_reader` does not warn if the @ivar is not set:
```
$ ruby -w -e 'class T; def foo; @foo; end; end; t=T.new; p t.foo'
-e:1: warning: instance variable @foo not initialized
nil
$ ruby -w -e 'class T; attr_r...
Eregon (Benoit Daloze)
02:18 PM Feature #15236: add support for hash shorthand
For all interested in this feature, I've added support for it in the latest Ruby Next (Ruby transpiler) release (https://github.com/ruby-next/ruby-next/releases/tag/v0.10.0), so it should be easier to give it a try and share opinions.
palkan (Vladimir Dementyev)
02:15 PM Feature #17104: Do not freeze interpolated strings when using frozen-string-literal
https://github.com/nobu/ruby/tree/unfrozen-literal nobu (Nobuyoshi Nakada)
02:05 PM Bug #17142 (Open): Ruby fails to build in AIX
Ruby fails to build in AIX in 64bit mode.
This commit https://github.com/ruby/ruby/commit/f47c38245ff6976c5d1fc27a79f239bba00fc333 essentially broke the 64bit build.
The asm code is not applicable for AIX it seems. Probably we need...
Ayappan (Ayappan Perumal)
01:40 PM Feature #17122: Add category to Warning#warn
PR for `rb_warn_deprecated` opened here: https://github.com/ruby/ruby/pull/3505 eileencodes (Eileen Uchitelle)
12:17 PM Feature #17122: Add category to Warning#warn
> Could you add the same logic not only to rb_warn_deprecated_to_remove but also to rb_warn_deprecated? Thanks.
Yup, I will send a PR!
eileencodes (Eileen Uchitelle)
06:36 AM Feature #17122 (Assigned): Add category to Warning#warn
Hi @eileencodes
mame (Yusuke Endoh) wrote in #note-8:
> In addition: your PR changed only `rb_warn_deprecated_to_remove` but not `rb_warn_deprecated`. Is there any reason?
Could you add the same logic not only to `rb_warn_depreca...
mame (Yusuke Endoh)
12:16 AM Feature #17122 (Closed): Add category to Warning#warn
Merged at https://bugs.ruby-lang.org/projects/ruby-master/repository/git/revisions/6e8ec9ab6da228ade70fe7d0dd16540d8f859f00 hsbt (Hiroshi SHIBATA)
06:14 AM Misc #17050 (Closed): profiler gem
Okay, I look forward to your profiler. ioquatix (Samuel Williams)
04:30 AM Revision 93b78abd (git): new_dstr: hoisted out from literal_concat and evstr2dstr
nobu (Nobuyoshi Nakada)
04:30 AM Revision 63213304 (git): Removed trailing spaces [ci skip]
nobu (Nobuyoshi Nakada)
04:05 AM Bug #14895 (Closed): Inconsistent constant names when using const_set on a singleton class
Applied in changeset commit:git|5e16857315bf55307c5fc887ca6f03bfa0630a93.
----------
Fix constant names set using const_set on a singleton class
Fixes [Bug #14895]
Anonymous
04:05 AM Revision 5e168573 (git): Fix constant names set using const_set on a singleton class
Fixes [Bug #14895] Marc-Andre Lafortune
02:03 AM Revision 11922b5e (git): Fix error message for wb unprotected objects count
This error is about wb unprotected objects, not old objects. peterzhu2118 (Peter Zhu)
02:02 AM Revision 4c3f0597 (git): Remove the pc argument of vm_trace()
This makes the binary 272 bytes smaller on -O3 GCC 10.2.0. alanwu (Alan Wu)
01:22 AM Bug #17141 (Closed): Crash when parsing malformed input
I can confirm this crash in Ruby 2.7.1, 2.7.0, and the ruby_2_7 branch. It is not present in master.
Here's the backtrace on ruby_2_7 branch:
```
0x00000a3c357f2d7c in CALLER_REMOVE_EMPTY_KW_SPLAT (cfp=0xa3ba636ef90, calling=0x7f...
jeremyevans0 (Jeremy Evans)
01:02 AM Revision 94b54b03 (git): Reapply "Special case Range#max for integer beginning and Float::Infinity end" (tests)
Reverted in e080a4cdee Marc-Andre Lafortune
12:56 AM Misc #17138: DevelopersMeeting20200925Japan
* [Feature #16994] Shorthand syntax for static frozen sets of string/symbols (e.g. `%ws{hello world}`) (marcandre)
* Rest of my "Set program", especially: insure interoperability with `Array` (e.g so `array & set` works and is efficient)
marcandre (Marc-Andre Lafortune)
12:40 AM Feature #11927: Return value for `Module#include` and `Module#prepend`
It would help to:
1) have an example of use case
2) discuss why `B.include M unless B < M` is not equivalent / sufficient
marcandre (Marc-Andre Lafortune)

09/01/2020

11:16 PM Revision 6e8ec9ab (git): Support passing a category to `Warning.warn`
This change adds a `category` kwarg to make it easier to monkey patch
`Warning.warn`. Warnings already have a category, but that warning isn't
exposed. This implements a way to get the category so that warnings with
a specific category, ...
eileencodes (Eileen Uchitelle)
09:07 PM Bug #16787: [patch] allow Dir.home to work for non-login procs when $HOME not set
Just noting that I rebased (and re-tested) the Ruby 2.7 backport PR ([PR 3293](https://github.com/ruby/ruby/pull/3293)) on top of the latest changes in the 'ruby-2_7' branch. The rebasing did not result in any material changes to the 2.7... salewski (Alan Salewski)
08:10 PM Bug #17141 (Closed): Crash when parsing malformed input
Calling "ruby crash_small.rb" crashes ruby - see attached crash log tumdum (Tomasz Kłak)
07:52 PM Feature #17140 (Open): Merge Enumerable#grep(_v) with Enumerable#select/reject
In recent versions of Ruby we've gotten new behavior of some Enumerable methods like any?, all?, none?, one?, and others to support a single argument pattern that responds to `===`. This is very powerful, and very useful.
Currently En...
baweaver (Brandon Weaver)
07:35 PM Feature #17122: Add category to Warning#warn
I've addressed the backwards compatibility on the PR (https://github.com/ruby/ruby/pull/3418) and added an entry to NEWS.md. Let me know if there are other changes <3 eileencodes (Eileen Uchitelle)
06:18 PM Feature #17104: Do not freeze interpolated strings when using frozen-string-literal
mame (Yusuke Endoh) wrote in #note-18:
> I found `"foo#{ "foo" }"` frozen because it is optimized to `"foofoo"` at the parser. What do you think?
I guess that's semantically correct (besides the frozen status), since interpolation d...
Eregon (Benoit Daloze)
03:39 PM Feature #17104: Do not freeze interpolated strings when using frozen-string-literal
Eregon (Benoit Daloze) wrote in #note-17:
> I'll try to make a PR for this change: https://github.com/ruby/ruby/pull/3488
Thanks, I've given it a try.
I found `"foo#{ "foo" }"` frozen because it is optimized to `"foofoo"` at the p...
mame (Yusuke Endoh)
05:53 PM Bug #17017: Range#max & Range#minmax incorrectly use Float end as max
I reverted the changes in this pull request, and updated the Range#max documentation to explain the behavior (commit:de10a1f3583adeeffd7f8bcf8f276e0a626ffa0c). jeremyevans0 (Jeremy Evans)
02:49 PM Bug #17017: Range#max & Range#minmax incorrectly use Float end as max
matz (Yukihiro Matsumoto) wrote in #note-24:
> `Range` class methods are classified in two. The ones that behave like `Enumerable` methods (defined by `#each`), and the others that behave like region (defined by the both ends).
> ...
O...
jeremyevans0 (Jeremy Evans)
05:13 AM Bug #17017: Range#max & Range#minmax incorrectly use Float end as max
`Range` class methods are classified in two. The ones that behave like `Enumerable` methods (defined by `#each`), and the others that behave like region (defined by the both ends).
I think `#min` and `#max` should belong to the latter. ...
matz (Yukihiro Matsumoto)
05:52 PM Revision de10a1f3 (git): Update documentation for Range#max
jeremyevans (Jeremy Evans)
05:52 PM Revision 4db4faef (git): Revert "Fix Range#{max,minmax} for range with integer beginning and non-integer end"
This reverts commit 8900a25581822759daca528d46a75e0b743fc22e. jeremyevans (Jeremy Evans)
05:52 PM Revision e080a4cd (git): Revert "Special case Range#max for integer beginning and Float::Infinity end"
This reverts commit 05bf811c2839628aaef3d565daedb28be80d47ef. jeremyevans (Jeremy Evans)
05:49 PM Revision 94430d00 (git): Comply with guide for method doc: array.c (#3499)
Methods considered:
count
flatten!
flatten
cycle
permutation
combination
repeated_permutation
repeated_combination
product
take
take_while
drop
drop_while
burdettelamar (Burdette Lamar)
04:46 PM Revision 9d4c5147 (git): * 2020-09-02 [ci skip]
git[bot]
04:41 PM Revision 41cf17be (git): Fixed argument types
nobu (Nobuyoshi Nakada)
04:41 PM Revision f6822e4e (git): Format with proper conversion specifiers instead of casts
nobu (Nobuyoshi Nakada)
04:31 PM Bug #17139 (Closed): [doc] StringScanner#matched_size seems to be byte-oriented but that is not documented
StringScanner#matched_size seems to be byte oriented. But that is not documented. Better be documented to avoid confusion.
[1] pry(main)> ss = StringScanner.new([1024].pack("U*"))
[3] pry(main)> ss.skip_until(/./)
[4] pry(main)> ss....
akostadinov (Aleksandar Kostadinov)
03:56 PM Feature #17055: Allow suppressing uninitialized instance variable and method redefined verbose mode warnings
At the last dev meeting, @matz said he did not like the callback API, and decided to postpone discussion on this. jeremyevans0 (Jeremy Evans)
03:48 PM Misc #17138 (Closed): DevelopersMeeting20200925Japan
# The next dev meeting
**Date: 2020/09/25 13:00-17:00**
Place/Sign-up/Agenda/Log: https://github.com/ruby/dev-meeting-log/blob/master/DevelopersMeeting20200925Japan.md
- Dev meeting *IS NOT* a decision-making place. All decisions ...
mame (Yusuke Endoh)
03:47 PM Misc #17041 (Closed): DevelopersMeeting20200831Japan
mame (Yusuke Endoh)
03:01 PM Bug #14895: Inconsistent constant names when using const_set on a singleton class
Fixed dangling participle. sawa (Tsuyoshi Sawada)
02:20 PM Bug #14895: Inconsistent constant names when using const_set on a singleton class
marcandre (Marc-Andre Lafortune) wrote in #note-7:
> So I suggest I'll commit your patch, unless there's an objection.
I have no objection, so if you consider the current behavior a bug, please commit the patch (assuming it doesn't c...
jeremyevans0 (Jeremy Evans)
04:50 AM Bug #14895 (Open): Inconsistent constant names when using const_set on a singleton class
jeremyevans0 (Jeremy Evans) wrote in #note-6:
> Output:
> ...
... and it shows the name 'A' and 'C'. That's much better!
> If you like that idea, please submit a feature request for it (or switch this to a feature request and reope...
marcandre (Marc-Andre Lafortune)
02:16 PM Bug #15178 (Closed): Wrong paramaters passing to pthread_setname_np(3)
Applied in changeset commit:git|be9dbe1c3eb4bb4cab0bdc42a91ef425bb1eaddd.
----------
Fix pthread_setname_np arguments on NetBSD
The previous attempt to fix this in
b87df1bf243074edb2e6cc8a24bc00df81cebf3c reversed the argument
order in...
jeremyevans (Jeremy Evans)
02:16 PM Revision be9dbe1c (git): Fix pthread_setname_np arguments on NetBSD
The previous attempt to fix this in
b87df1bf243074edb2e6cc8a24bc00df81cebf3c reversed the argument
order instead of just fixing the quote escaping.
From Takahiro Kambe.
Fixes [Bug #15178]
jeremyevans (Jeremy Evans)
12:18 PM Revision 6b432009 (git): Fix syncing bundler man pages
`rm_rf` does not support globbing, so not all files get deleted. deivid (David Rodríguez)
10:03 AM Revision 8d1de315 (git): Use RSTRING_LENINT for overflow check
nobu (Nobuyoshi Nakada)
10:01 AM Revision 21ad4075 (git): Don't read past the end of the Ruby string
Ruby strings don't always have a null terminator, so we can't use
it as a regular C string. By reading only the first len bytes of
the Ruby string, we won't read past the end of the Ruby string.
peterzhu2118 (Peter Zhu)
08:06 AM Feature #15752 (Closed): A dedicated module for experimental features
As far as I understand, you want a place to separate features that do not only belong to `CRuby`, right?
But for example, we started `RubyVM::AbstractSyntaxTree` as a `CRuby` specific feature, it was natural for us to place it under `Ru...
matz (Yukihiro Matsumoto)
05:42 AM Revision fbf79f1c (git): Use the previous winflexbison3
winflexbison3 v2.5.23.20200829 seems to install nothing. nobu (Nobuyoshi Nakada)
04:23 AM Bug #15417: Pathname case insensitive comparison
The arguments are path components but not paths, can't stat. nobu (Nobuyoshi Nakada)
02:21 AM Revision cceba235 (git): minitest is working fine with Ruby 3
hsbt (Hiroshi SHIBATA)
02:21 AM Revision e00eba1c (git): xmlrpc has been removed from the bundled gems
hsbt (Hiroshi SHIBATA)
02:21 AM Revision a3d90f1b (git): bump version to minitest-5.14.2
hsbt (Hiroshi SHIBATA)
02:21 AM Revision 37715937 (git): Revert the workaround of minitest and hoe
86737c509cd49cfe4509a65d300d390da0f07be6
3e1aea461320094e634ab32ca0b13dd43b69d8b0
hsbt (Hiroshi SHIBATA)
02:05 AM Revision b01d852c (git): congigure.ac: favour gcc on Linux
Requested by Naruse. shyouhei (Shyouhei Urabe)

08/31/2020

10:32 PM Bug #14895 (Closed): Inconsistent constant names when using const_set on a singleton class
marcandre (Marc-Andre Lafortune) wrote in #note-5:
> This looks like a bug to me.
> ...
Ruby 2.7 changed the behavior so that `a` and `c` are treated identically, but that `c` is like `a`:
```
a # #<Module:0x00000b0bda620368>
b #...
jeremyevans0 (Jeremy Evans)
09:38 PM Bug #14997 (Closed): Socket connect timeout exceeds the timeout value for
I believe this timeout issue is now solved by the Socket.tcp :resolv_timeout option, introduced in commit:6382f5cc91ac9e36776bc854632d9a1237250da7. jeremyevans0 (Jeremy Evans)
09:33 PM Bug #15038 (Closed): Appveyor MinGW - bundled gems missing?
Both AppVeyor CI jobs now show the bundled gems, so hopefully this can be closed:
https://ci.appveyor.com/project/ruby/ruby/builds/34951403/job/xodf8ma94pv35c33?fullLog=true#L3025
https://ci.appveyor.com/project/ruby/ruby/builds/3495...
jeremyevans0 (Jeremy Evans)
09:25 PM Revision 50736f12 (git): Comply with guide for method doc: array.c (#3489)
Methods considered:
&
intersection
|
union
max
min
minmax
uniq!
uniq
compact!
compact
burdettelamar (Burdette Lamar)
09:22 PM Bug #15178: Wrong paramaters passing to pthread_setname_np(3)
I agree with your analysis. Looking at the NetBSD man page for pthread_setname_np (https://netbsd.gw.com/cgi-bin/man-cgi?pthread_setname_np++NetBSD-current), the format string is clearly the 2nd argument and not the third. The only rea... jeremyevans0 (Jeremy Evans)
09:14 PM Revision a137874e (git): add RUBY_DEBUG=ci envval for GH actions
RUBY_DEBUG=ci envval shows more information on rb_bug(). ko1 (Koichi Sasada)
09:13 PM Bug #15417: Pathname case insensitive comparison
ioquatix (Samuel Williams) wrote:
> Unless string match exactly, we should leave it to file system to determine if the path is equivalent or not (e.g. in the case of `Pathname#relative_path_from`). Trying to be too clever might cause fu...
jeremyevans0 (Jeremy Evans)
08:23 PM Bug #15276 (Closed): URI.join behaviour is unintuitive
jeremyevans0 (Jeremy Evans)
08:22 PM Bug #15209 (Closed): r64925 order-only-prerequisites - make targets - breaking change
r64925 was reverted shortly after this in commit:3757515501347685bfbd9ef11bc03e93c66d1dc9, so this can be closed. jeremyevans0 (Jeremy Evans)
08:17 PM Bug #15313 (Closed): [PATCH] Let debuggers know when a tail call happens
As tailcall optimization was removed in commit:241dced625f9ba8a4071954579778a0940e75179, I think this can be closed. jeremyevans0 (Jeremy Evans)
07:53 PM Revision e744d407 (git): Comply with guide for method doc: array.c (#3484)
Methods:
+
concat
*
assoc
rassoc
==
eql?
hash
include?
<=>
-
difference
burdettelamar (Burdette Lamar)
07:52 PM Misc #17137 (Assigned): Cooperation on maintaining official docker ruby images
It was pointed out to me at https://github.com/docker-library/ruby/issues/323 that the ruby-core team has started maintaining their own docker images at https://github.com/ruby/ruby-docker-images, and that the base Dockerfiles were initi... deivid (David Rodríguez)
07:43 PM Feature #14394: Class.descendants
More like:
```ruby
class A
end
x = Class.new(A)
y = x.new
```
~~How does the GC handle such classes?
Will they get GC'd when there isn't any reference to them anymore?~~
I checked such classes will get GC'd when there isn't any refe...
Hanmac (Hans Mackowiak)
06:50 PM Feature #14394: Class.descendants
+1 for this feature from me.
@hanmac: if you are referring to singleton classes, they should be excluded:
```ruby
s = +'hello'
def s.force_singleton_class
42
end
s.singleton_class < String # => true
String.descendants.include?(s.sing...
marcandre (Marc-Andre Lafortune)
10:46 AM Feature #14394: Class.descendants
Hanmac (Hans Mackowiak) wrote in #note-10:
> if it would add them, how about adding a parameter to this function exclude/include them? (exclude them as default?)
I think the user can filter easily based on whatever condition they wan...
Eregon (Benoit Daloze)
09:02 AM Feature #14394: Class.descendants
@fatkodima
how does `rb_class_foreach_subclass` handle anonymous classes?
if it would add them, how about adding a parameter to this function exclude/include them? (exclude them as default?)
Hanmac (Hans Mackowiak)
07:28 PM Feature #17104: Do not freeze interpolated strings when using frozen-string-literal
I'll try to make a PR for this change: https://github.com/ruby/ruby/pull/3488 Eregon (Benoit Daloze)
08:50 AM Feature #17104: Do not freeze interpolated strings when using frozen-string-literal
OK. Persuaded. Make them unfrozen.
Matz.
matz (Yukihiro Matsumoto)
07:08 PM Bug #15576 (Closed): Wrong error message from some class methods of `Dir`
jeremyevans0 (Jeremy Evans)
06:16 PM Revision 18bcfe71 (git): * 2020-09-01 [ci skip]
git[bot]
06:16 PM Revision 1f4c507a (git): Comply with guide for method doc: array.c (#3477)
Methods considered:
delete_at
slice!
reject!
reject
delete_if
zip
transpose
replace
clear
fill
burdettelamar (Burdette Lamar)
03:22 PM Feature #17122: Add category to Warning#warn
> OK. Accepted. But we might need to add arity check before calling warning callback for compatibility's sake.
Great, very exciting! I will work on implementing an arity check / fixing the incompatibility and fix the failing tests on ...
eileencodes (Eileen Uchitelle)
06:06 AM Feature #17122: Add category to Warning#warn
OK. Accepted. But we might need to add arity check before calling `warning` callback for compatibility's sake.
Matz.
matz (Yukihiro Matsumoto)
02:04 AM Feature #17122: Add category to Warning#warn
akr (Akira Tanaka) wrote in #note-13:
> But Ruby don't have "ignorable" argument that
> ...
Maeda-sensei (@maeda) told me that Common Lisp has allow-other-keys which suppress keyword argument checking at function call.
http://www....
akr (Akira Tanaka)
01:14 PM Feature #15547 (Closed): deprecate iterator?
Applied in changeset commit:git|2e80c8347e27f8ecedab56bab105d69efa35cbea.
----------
Deprecate iterator? method
[Feature #15547] [Fix GH-2071]
nobu (Nobuyoshi Nakada)
07:47 AM Feature #15547: deprecate iterator?
I agree.
Matz.
matz (Yukihiro Matsumoto)
01:14 PM Revision 2e80c834 (git): Deprecate iterator? method
[Feature #15547] [Fix GH-2071] nobu (Nobuyoshi Nakada)
12:57 PM Revision c23c880f (git): [ruby/strscan] Bump version
https://github.com/ruby/strscan/commit/df90d541fa Sutou Kouhei
12:57 PM Revision c76508b8 (git): [ruby/strscan] Replaced examples using $KCODE with encodings
`$KCODE` has been deprecated and not effective since years ago.
https://github.com/ruby/strscan/commit/7c4dbd4cb3
nobu (Nobuyoshi Nakada)
11:49 AM Revision 01f28405 (git): Update version to 3.0.0 in NEWS.md
znz (Kazuhiro NISHIYAMA)
11:31 AM Bug #17132: vcs.rb doesn't detect git submodules as vcs
>As I have never used git submodule, I can't get what "target thats inside a submodule" means.
> ...
It means that the target eg. the srcdir is in a git submodule.
It set it up like this:
``` shell
git init
git submodule add https...
Thaodan (Björn Bidar)
11:30 AM Revision 53ba9fb7 (git): Prohibit setter method names in endless method definition
https://bugs.ruby-lang.org/issues/16746#note-26 mame (Yusuke Endoh)
10:23 AM Feature #17100: Ractor: a proposal for a new concurrent abstraction without thread-safety issues
Re naming of receiving a message, here is the poll I made:
https://twitter.com/eregontp/status/1299284528578596864
126 votes, 83.3% Ractor.receive, 16.7% Ractor.recv.
I think the result can hardly be clearer.
I see it as naming it `Rac...
Eregon (Benoit Daloze)
09:51 AM Revision 86737c50 (git): Removed minitest and hoe because they didn't support Ruby 3 yet
hsbt (Hiroshi SHIBATA)
09:10 AM Feature #17125 (Closed): Remove Thread.exclusive
Applied in changeset commit:git|b674fc9ca2498d55c7e4f91592279eb985b8bea1.
----------
Thread.exclusive: delete
Has been deprecated since 2069c9e031fc968d6d3d0fe30a9316851e4d91d8.
[Feature #17125][ruby-core:99636]
shyouhei (Shyouhei Urabe)
09:02 AM Feature #17125: Remove Thread.exclusive
OK. Let's remove them.
Matz.
matz (Yukihiro Matsumoto)
09:08 AM Revision b674fc9c (git): Thread.exclusive: delete
Has been deprecated since 2069c9e031fc968d6d3d0fe30a9316851e4d91d8.
[Feature #17125][ruby-core:99636]
shyouhei (Shyouhei Urabe)
09:00 AM Bug #17105: A single `return` can return to two different places in a proc inside a lambda inside a method
It is intentional since 1.6.0. But I am OK with making `m2` raise `LocalJumpError`.
Ask @ko1 about migration.
Matz.
matz (Yukihiro Matsumoto)
08:48 AM Feature #17103: Add a :since option to ObjectSpace.dump_all
OK. Accepted.
Matz.
matz (Yukihiro Matsumoto)
08:45 AM Revision eb9342d3 (git): The deprecation of enumerators with block has been withdrawn
https://bugs.ruby-lang.org/issues/6670#change-75907 nobu (Nobuyoshi Nakada)
08:45 AM Revision 0eec4ae8 (git): Get rid of using Socket.gethostbyname
nobu (Nobuyoshi Nakada)
08:22 AM Feature #14844: Future of RubyVM::AST?
I am OK with move the class from `RubyVM::AbstractSyntaxTree`. We have to decide the new name for it (`RubyAST`?).
In addition, the structure of the abstract syntax tree may be slightly changed from time to time (by refactoring or synta...
matz (Yukihiro Matsumoto)
08:20 AM Feature #16746: Endless method definition
https://github.com/ruby/ruby/pull/3479 mame (Yusuke Endoh)
08:19 AM Feature #16746: Endless method definition
In the previous dev-meeting, matz said that it should be prohibited to define setter method with endless definition.
```ruby
# prohibited
def foo=(x) = @x = x
```
There are two reasons:
1. This code is very confusing and it i...
mame (Yusuke Endoh)
08:18 AM Revision 3e1aea46 (git): Temporary removed minitest from bundled gems.
It requires Ruby 2.x.
https://github.com/seattlerb/minitest/blob/master/Rakefile#L14
hsbt (Hiroshi SHIBATA)
07:53 AM Revision 34c20c99 (git): [DOC] Fixed wording [ci skip]
nobu (Nobuyoshi Nakada)
07:53 AM Revision f588caa7 (git): [DOC] Indent a code block in NEWS [ci skip]
nobu (Nobuyoshi Nakada)
07:48 AM Feature #17039: Remove Time#succ
Let us remove it.
Matz.
matz (Yukihiro Matsumoto)
07:38 AM Revision 21c62fb6 (git): Version number bumped to 3.0.0 from 2.8.0 (tentative).
We have decided to go forward to 3.0 this year. matz (Yukihiro Matsumoto)
07:36 AM Feature #17136: Remove special behavior from $KCODE
We waited enough long time. Let us remove it.
Matz.
matz (Yukihiro Matsumoto)
06:36 AM Feature #17136 (Closed): Remove special behavior from $KCODE
`$SAFE` is now a normal global variable with no special behavior.
I think `$KCODE`'s special behavior is also no longer needed.
Warnings since 1.9.
```
% docker run -it --rm rubylang/all-ruby env ALL_RUBY_SINCE=ruby-1.4 ./all-ruby...
znz (Kazuhiro NISHIYAMA)
05:36 AM Feature #16345 (Closed): Don't emit deprecation warnings by default.
I agree with @marcandre for making migration slow(er). We should wait for a few versions after emitting opt-in warnings before removing the feature.
But it doesn't affect the discussion of stopping forced (default-on) warnings. I vote...
matz (Yukihiro Matsumoto)
01:15 AM Feature #17135 (Assigned): Improve performance of Integer#size method
The patch looks good to me. HOWEVER, let me -1 this.
Integer#size HAS to be as fast as what is proposed here, without any extra hustle like this.
@ko1 any idea what is preventing it from running smoothly?
shyouhei (Shyouhei Urabe)

08/30/2020

11:28 PM Feature #17056: Array#index: Allow specifying the position to start search as in String#index
I have implemented an `offset` parameter for `Array#index` - https://github.com/ruby/ruby/pull/3448
Will adjust to more methods if asked.
fatkodima (Dima Fatko)
03:34 PM Revision 9b88851c (git): * 2020-08-31 [ci skip]
git[bot]
03:34 PM Revision 585a659b (git): Comply with guide for method doc: array.c (#3475)
Methods considered:
bsearch
bsearch_index
sort_by!
collect
collect!
values_at
select
select!
keep_if
delete
burdettelamar (Burdette Lamar)
01:10 PM Feature #17135 (Closed): Improve performance of Integer#size method
`Integer#size` seems to show improved performance when written in ruby.
benchmark:
```yml
prelude: |
n = 42
benchmark:
size: |
n.size
loop_count: 20000000
```
result:
```bash
sh@MyComputer:~/rubydev/build$ mak...
S_H_ (Shun Hiraoka)
11:26 AM Feature #13683: Add strict Enumerable#single
matz (Yukihiro Matsumoto) wrote in #note-10:
> Hmm, I don't like the name `single`.
matz (Yukihiro Matsumoto) wrote in #note-17:
> ...
Could you explain why?
I think `single` as in "return a single element or error out" is the best...
Eregon (Benoit Daloze)
10:46 AM Feature #16986: Anonymous Struct literal
ko1 (Koichi Sasada) wrote in #note-34:
> how about `%struct{a: 1, b: 2}` (and `%value{...}` if needed)?
> ...
Is `%struct"a: 1, b: 2"` same?
nobu (Nobuyoshi Nakada)
09:54 AM Feature #15547: deprecate iterator?
I've forgotten this.
Updated https://github.com/ruby/ruby/pull/2071
nobu (Nobuyoshi Nakada)
07:07 AM Revision 9eda6547 (git): KNOWNBUGS.rb: use-after-poison since b9007b6c548f91e88fd3f2ffa23de740431fa969
nobu (Nobuyoshi Nakada)

08/29/2020

08:16 PM Revision 726f2e59 (git): Comply with guide for method doc: array.c (#3474)
Methods considered:
length
empty?
join
inspect
to_a
to_h
to_ary
reverse!
reverse
rotate!
rotate
sort!
sort
burdettelamar (Burdette Lamar)
05:15 PM Revision a8f11df3 (git): * 2020-08-30 [ci skip]
git[bot]
05:15 PM Revision f0ad5594 (git): Comply with guide for method doc: array.c (#3473)
Methods considered:
at
first
last
fetch
index
rindex
[]
insert
each
each_index
reverse_each
burdettelamar (Burdette Lamar)
05:03 PM Feature #11927: Return value for `Module#include` and `Module#prepend`
I would like to have this. Please, reconsider this feature. fatkodima (Dima Fatko)
05:01 PM Feature #5628: Module#basename
Used this numerous times.
I like this suggestion:
regularfry (Alex Young) wrote in #note-4:
> .name( false )
> ...
What ruby-core think on this?
fatkodima (Dima Fatko)
04:02 PM Bug #17132 (Feedback): vcs.rb doesn't detect git submodules as vcs
As I have never used git submodule, I can't get what "target thats inside a submodule" means.
Could you explain how you set up it?
`.git` file/directory doesn't exist in submodule?
nobu (Nobuyoshi Nakada)
01:38 PM Feature #17099: Remove boolean argument and warning from Module#attr

Anyone has opinion?
S_H_ (Shun Hiraoka)
12:42 PM Feature #13683: Add strict Enumerable#single
Hmmm, just now I realized there's a simple idiom that's roughly equivalent to `one`/`single`
```ruby
[1,2].inject{break} #=> nil
[1,2].inject{raise} #=> error
[1].inject{break} #=> 1
[1].inject{raise} #=> 1
[].inject{break} #=> n...
Dan0042 (Daniel DeLorme)
12:29 PM Feature #13683: Add strict Enumerable#single
Dan0042 (Daniel DeLorme) wrote in #note-25:
> I really think the block form should be like find/select
> ...
...
> continue searching [...] that alters the fundamental behavior too much imho.
I think you are right.
But the word "one",...
sawa (Tsuyoshi Sawada)
11:11 AM Feature #13683: Add strict Enumerable#single
> If collection is empty and a block was given, returns the block's return value:
I really think the block form should be like find/select
```ruby
[1,2,3].one{ _1.even? } #=> 2
[1,2,3,4].one{ _1.even? } #=> error
[1,...
Dan0042 (Daniel DeLorme)
04:23 AM Feature #13683: Add strict Enumerable#single
Having `Enumerable#find` take an optional keyword argument, say `exception:`, would make more sense, be useful, and have more generality.
```ruby
[1].find(exception: true){true} # => 1
[1, 2, 3].find(exception: true){true} # >> Error
[]...
sawa (Tsuyoshi Sawada)
12:42 PM Bug #17131: Time.at(time) != time in certain cases
jeremyevans0 (Jeremy Evans) wrote in #note-3:
> a spec that shows that defining to_r without to_int is expected to raise an error
> ...
All clear, thanks a lot. I'll handle the usages to adhere to this protocol.
phil_pirozhkov (Phil Pirozhkov)
11:41 AM Feature #17016: Enumerable#accumulate
`#accumulate` is good, but since [this question](https://stackoverflow.com/q/1475808) linked in the OP was asking for the "cumulative sum" ... what about `#cumulative` ?
```ruby
[1,2,3].cumulative.sum #=> [1,3,6]
[1,2,3]...
Dan0042 (Daniel DeLorme)
10:49 AM Revision d7492a0b (git): Revert changes to rdoc & rubygems regarding Tempfile.open(&block)
* They likely want to support older Ruby/tempfile versions
* Reverts part of e8c3872555fc85640505974e6b1c39d315572689
Eregon (Benoit Daloze)
10:30 AM Revision 3beecafc (git): Fix usages of Tempfile.open(&block) that expected the file to still be there after the block
Eregon (Benoit Daloze)
10:23 AM Revision e8c38725 (git): Simplify Tempfile.open calls with a block as they now unlink the file automatically
Eregon (Benoit Daloze)
10:11 AM Revision ff323b2a (git): Adapt specs for the new Tempfile.open with block behavior
Eregon (Benoit Daloze)
10:05 AM Revision fa21985a (git): Sync with ruby/tempfile@aa9ea12d94a905161cbd79af1ad9ab427f250f4e
Eregon (Benoit Daloze)
10:00 AM Revision a11b9ca0 (git): Some fixes in NEWS.md
Eregon (Benoit Daloze)
09:58 AM Revision 1199f1a4 (git): Fix warnings related to new Socket.gethostby* deprecations
Eregon (Benoit Daloze)
09:51 AM Revision 232d6c40 (git): Use a constant instead of a global variable in sync_default_gems.rb
Eregon (Benoit Daloze)
08:18 AM Revision 6d946665 (git): Show deprecation warning on Socket.gethostbyname and Socket.gethostbyaddr
Glass_saga (Masaki Matsushita)
07:10 AM Revision 56dd578d (git): IO.copy_stream: handle EOPNOTSUP instead of ENOTSUP
Glass_saga (Masaki Matsushita)
06:56 AM Feature #9420 (Closed): warn and puts should be atomic
For now, warn and puts already use writev if available. Glass_saga (Masaki Matsushita)
06:41 AM Feature #16965 (Closed): io.c: Unsupported copy_file_range() not detected properly on certain kernels
Applied in changeset commit:git|93df3010482ad52e5ada2e416c996005da956e1e.
----------
IO.copy_stream: handle ENOTSUP on copy_file_range(2)
fallback to other methods on ENOTSUP.
some RedHat kernels may return ENOTSUP on an NFS mount.
[Fe...
Glass_saga (Masaki Matsushita)
06:38 AM Revision 93df3010 (git): IO.copy_stream: handle ENOTSUP on copy_file_range(2)
fallback to other methods on ENOTSUP.
some RedHat kernels may return ENOTSUP on an NFS mount.
[Feature #16965]
Glass_saga (Masaki Matsushita)
05:26 AM Feature #17134 (Open): Add resolv_timeout to TCPSocket
Add resolve_timeout to TCPSocket.new.
It makes DNS timeout customizable in the same way as Socket.tcp.
https://github.com/ruby/ruby/pull/3472
Glass_saga (Masaki Matsushita)
03:31 AM Revision c2011d1a (git): Fix a typo [ci skip]
znz (Kazuhiro NISHIYAMA)

08/28/2020

11:12 PM Bug #15570 (Closed): rb_int2big signature change #14036 breaks VIM on 32b arches
This was fixed in vim (https://github.com/vim/vim/commit/63d1fea8141c3dfb36aeb9de60e5f1f90450acff), so I think this can be closed, as changing it back would rebreak vim. jeremyevans0 (Jeremy Evans)
11:07 PM Feature #14394: Class.descendants
I opened a PR - https://github.com/ruby/ruby/pull/3471 fatkodima (Dima Fatko)
12:51 AM Feature #14394: Class.descendants
Implementation wise MRI already have `rb_class_foreach_subclass()`. It can be rather trivial to wrap that C function. shyouhei (Shyouhei Urabe)
10:38 PM Bug #16622 (Closed): mswin build was failed with the current master branch #3121
jeremyevans0 (Jeremy Evans)
10:35 PM Bug #16679 (Feedback): Test of Ruby fails under multiple OS user userland installations
From the error you are receiving, it is trying to write to a read-only file, and that is raising an error. The same tests don't usually raise an error, so this is probably specific to your environment. Is it possible for you to come up... jeremyevans0 (Jeremy Evans)
09:49 PM Bug #16774 (Closed): Don't require sub-word atomics
This was committed at commit:abe2e7de4d1f2d5861d7c9ab9c7e778f2ee1dcd2 jeremyevans0 (Jeremy Evans)
09:39 PM Bug #16974: frozen string issue in lib/reline/ansi.rb on ruby-2.7.1
The current pull request for this is at https://github.com/ruby/reline/pull/122 jeremyevans0 (Jeremy Evans)
09:35 PM Bug #16983: RubyVM::AbstractSyntaxTree.of(method) returns meaningless node if the method is defined in eval
I'm not sure if this is a bug, but it does seem like a fundamental and significant limitation with the design of RubyVM::AbstractSyntaxTree.of. RubyVM::AbstractSyntaxTree.of reparses the file the method is defined in and cannot handle a... jeremyevans0 (Jeremy Evans)
09:14 PM Feature #13683: Add strict Enumerable#single
If we introduce `one`, it would be nice to support regexp; maybe use `===` for matching when given an argument?
```ruby
%w[hello world].one(/ll/) # => 'hello'
```
marcandre (Marc-Andre Lafortune)
08:19 PM Feature #13683: Add strict Enumerable#single
I have opened a PR - https://github.com/ruby/ruby/pull/3470
```
# Returns one and only one item. Raises an error if there are none or more than one.
[99].one #=> 99
[].one #=> RuntimeError: collection is emp...
fatkodima (Dima Fatko)
07:56 PM Bug #17015 (Closed): RubyVM::AbstractSyntaxTree.parse has the same result on `proc { |a| }` and `proc { |a,| }`
The pull request was merged at commit:ff5e66034006a875125581114cce19d46843b32a jeremyevans0 (Jeremy Evans)
07:56 PM Revision 45c40f56 (git): Comply with guide for method doc: array.c (#3469)
Methods:
- freeze
- try_convert
- new
- \<<
- push
- pop
- shift
- unshift
- []
burdettelamar (Burdette Lamar)
06:39 PM Revision 4a5dd970 (git): Add alias treatment to method_documentation.rdoc (#3468)
* Add alias treatment to method_documentation.rdoc burdettelamar (Burdette Lamar)
06:28 PM Revision 3ffef9a0 (git): * 2020-08-29 [ci skip]
git[bot]
06:26 PM Bug #17102: openssl/buffering.rb:182: [BUG] Segmentation fault at 0x00001fa0fd774000
The crash appears to be due to memory corruption. Unfortunately, since it isn't reproducible, I don't think there is anything we can do to try to debug it. jeremyevans0 (Jeremy Evans)
06:26 PM Revision b49307c7 (git): Update to ruby/spec@335eb9b
Eregon (Benoit Daloze)
06:26 PM Revision 3dd63108 (git): Update to ruby/mspec@53a6e3e
Eregon (Benoit Daloze)
06:19 PM Bug #17129 (Closed): bundle install `eventmachine` and `sassc` fails since 914b2208ab3eddec478cdc3e079e6c30d0f0892c
jeremyevans0 (Jeremy Evans)
06:01 PM Bug #17131 (Closed): Time.at(time) != time in certain cases
@nobu committed a spec that shows that defining to_r without to_int is expected to raise an error (commit:7e1fddba4a609cb7bf4a696eccd892e68753bb21). I think that is sufficient to handle this issue. If you would like additional document... jeremyevans0 (Jeremy Evans)
04:44 PM Feature #15547: deprecate iterator?
+1, @nobu could you commit it? Eregon (Benoit Daloze)
04:43 PM Feature #17133 (Closed): Add deprecate warning Kernel#iterator?
Eregon (Benoit Daloze)
10:58 AM Feature #17133: Add deprecate warning Kernel#iterator?
Sorry, this ticket was duplicate.
ref: https://bugs.ruby-lang.org/issues/15547
S_H_ (Shun Hiraoka)
10:49 AM Feature #17133 (Closed): Add deprecate warning Kernel#iterator?
`Kernel#iterator?` was mildly deprecate sicne`1.8.6`, as far as I checked [ruby-doc](https://ruby-doc.org/core-1.8.6/Kernel.html#method-i-iterator-3F).
I think it better, to deprecated warn added(or delete `Kernel#iterator?`).
pull...
S_H_ (Shun Hiraoka)
03:30 PM Bug #17030: Enumerable#grep{_v} should be optimized for Regexp
I'm surprised at the performance difference on MRI though. Just allocating the MatchData shouldn't be so expensive. Maybe `Regexp#match?` has additional optimizations? Eregon (Benoit Daloze)
03:01 PM Bug #17030: Enumerable#grep{_v} should be optimized for Regexp
This is something that a JIT with inlining and escape analysis can optimize and always be correct.
Static analysis doesn't cut it for Ruby.
On TruffleRuby (master + a fix I'll merge soon) for the benchmark above:
https://gist.github.com...
Eregon (Benoit Daloze)
01:03 PM Revision 1c138327 (git): Try to fix compile error on windows
https://github.com/ruby/ruby/runs/1041040167?check_suite_focus=true#step:11:177
```
compiling ../src/re.c
re.c
../src/re.c(317): error C2057: expected constant expression
../src/re.c(317): error C2466: cannot allocate an array of constan...
znz (Kazuhiro NISHIYAMA)
11:17 AM Feature #14476: Adding same_all? for checking whether all items in an Array are same
I hope this new feature never makes it.
`enum.each_cons(2).all? { _1 == _2 }` is simply superior and more versatile.
Moreover, I'm not convinced that the frequency of this use warrants a new feature, especially that good alternativ...
marcandre (Marc-Andre Lafortune)
10:47 AM Revision 7e1fddba (git): States Time.at expects rational-like argument to respond to #to_int
https://bugs.ruby-lang.org/issues/17131 nobu (Nobuyoshi Nakada)
10:42 AM Feature #17100: Ractor: a proposal for a new concurrent abstraction without thread-safety issues
@ko1 Can you review these potential performance overheads of adding Ractors? (and so potential regressions for code not using Ractors)
From https://github.com/ko1/ruby/blob/ractor_parallel/doc/ractor.md#language-changes-to-isolate-uns...
Eregon (Benoit Daloze)
10:10 AM Feature #17100: Ractor: a proposal for a new concurrent abstraction without thread-safety issues
mame (Yusuke Endoh) wrote in #note-15:
> Here is my counterproposal: When a Ractor attempts to read a constant that has an unsharable object, the object should be "deeply copied" and cached.
Reading a constant to me is always expected t...
Eregon (Benoit Daloze)
10:00 AM Feature #17100: Ractor: a proposal for a new concurrent abstraction without thread-safety issues
matz (Yukihiro Matsumoto) wrote in #note-14:
> We have left some naming issues. My current ideas are:
> ...
I think many people can agree the C socket API has terrible naming, I think we should not blindly follow those mistakes for new n...
Eregon (Benoit Daloze)
07:19 AM Feature #17100: Ractor: a proposal for a new concurrent abstraction without thread-safety issues
I basically like Ractors, but I'd like to discuss how to share constants.
Currently, a Ractor cannot read any constant if it has an unsharable object.
```
C = [[1, 2], [3, 4]]
Ractor.new do
p C #=> can not access non-sharable ...
mame (Yusuke Endoh)
05:49 AM Feature #17100: Ractor: a proposal for a new concurrent abstraction without thread-safety issues
OK, I accept the Ractor concept. Go ahead and merge.
We have left some naming issues. My current ideas are:
* I vote for `recv` mostly because of the past familiality to UNIX naming convention
* I also want `recvfrom` a la UDP com...
matz (Yukihiro Matsumoto)
10:29 AM Revision 75c4e9b7 (git): Named the magic number for regexp option buffer size
In `rb_enc_reg_error_desc`, no longer kcode option is added. nobu (Nobuyoshi Nakada)
10:01 AM Bug #17132 (Feedback): vcs.rb doesn't detect git submodules as vcs
Mostly a followup of #12239 as this was already about a similar use case.
When I run make-snapshot with a srcdir as target thats inside a submodule it doesn't detect it as vcs.
My command line and the output:
`~/dev/sailfish/jolla/p...
Thaodan (Björn Bidar)
02:54 AM Feature #17122: Add category to Warning#warn
I feel the original proposal, adding a category keyword argument, is natural.
Although it is incompatible, arity check (or parameter check),
checking the arity of Warning.warn and don't give actual arguments more than the arity,
can pre...
akr (Akira Tanaka)
02:05 AM Revision 1f09c436 (git): [ruby/reline] Move width calculator methods to Reline::Unicode
https://github.com/ruby/reline/commit/f348ecd9f5 aycabta (aycabta .)
02:05 AM Revision cdd7d410 (git): [ruby/reline] fix cursor_pos regexp match
https://github.com/ruby/reline/commit/1dd80ef188 tompng (tomoya ishida)
02:05 AM Revision 88829270 (git): [ruby/irb] Discard newlines at end of file
https://github.com/ruby/irb/commit/0b2773d91d aycabta (aycabta .)
 

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