#ruby on 2023-03-29 — irc logs at libera.irclog.whitequark.org

2023-02-08 15:23 havenwood changed the topic of #ruby to: Rules: https://ruby-community.com | Ruby 3.2.1, 3.1.3, 3.0.5, 2.7.7: https://www.ruby-lang.org | Paste 4+ lines to: https://gist.github.com | Books: https://t.ly/9ua4 | Logs: https://libera.irclog.whitequark.org/ruby/

00:00 <ox1eef_> I love ERB but usually not for HTML documents.

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00:12 <adam12> ox1eef_: agreed

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10:08 <Lox> Hi all, I'm a bit confused by leading arguments with argument forwarding in Ruby 2.7.7: from everything I can find, support for leading arguments with argument forwarding (e.g. `def test(a, ...)`) was added in Ruby 3, but it seems like it's working in 2.7.7 as well? Was this backported somehow, or was this always present but not officially

10:08 <Lox> supported or documented?

10:09 <Lox> As POC, `def b(b, c) puts b; puts c; end; def a(a, ...) puts a; b(2, ...); end; a(1, 3)` prints `1 2 3` in Ruby 2.7.7

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10:12 <ox1eef_> https://carc.in/#/r/erz3

10:12 <ox1eef_> That's 2.7. So I guess it was supported since then.

10:14 <ox1eef_> Ah wait. That's actually Ruby3. On 2.7 it does not work: https://carc.in/#/r/erz6

10:18 <Lox> Hmm I believe that's carc.in that's broken because that style (without leading arguments) was introduced in 2.7 and works in a regular shell here, feature #16253 in https://github.com/ruby/ruby/blob/ruby_2_7/NEWS#other-miscellaneous-changes-

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10:23 <ox1eef_> I'm not sure that's the same thing: https://bugs.ruby-lang.org/issues/14799

10:24 <ox1eef_> It looks range-specific. But if it works, it works :)

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10:27 <ox1eef_> My bad! I got the feature number mixed up. Then indeed, 2.7 looks like when it was introduced.

10:29 <Lox> :D Yeah, the argument forwarding was indeed, but I don't think 2.7.0 supported leading arguments though (`def a(b, ...)`)

10:30 <Lox> There's a comment from eregon here about wanting to support it in 2.7.2: https://blade.ruby-lang.org/ruby-core/98558

10:30 <Lox> Looks like it was backported! https://bugs.ruby-lang.org/issues/16378#note-20

10:31 <ox1eef_> Nice detective work!

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10:36 <Lox> Yup, looks like it was in the commit list here between 2.7.2 and 2.7.3: https://github.com/ruby/ruby/compare/v2_7_2...v2_7_3 thanks ox1eef_! That satisfies my curiosity :D

10:40 <ox1eef_> No worries :)

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