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From: "decuplet (Nikita Shilnikov) via ruby-core" <ruby-core@ml.ruby-lang.org>
To: ruby-core@ml.ruby-lang.org
Cc: "decuplet (Nikita Shilnikov)" <noreply@ruby-lang.org>
Subject: [ruby-core:120476] [Ruby master Bug#21003] unexpected warning about ignored block
Date: Sat, 04 Jan 2025 13:41:17 +0000 (UTC)	[thread overview]
Message-ID: <redmine.issue-21003.20250104134116.8259@ruby-lang.org> (raw)
In-Reply-To: <redmine.issue-21003.20250104134116.8259@ruby-lang.org>

Issue #21003 has been reported by decuplet (Nikita Shilnikov).

----------------------------------------
Bug #21003: unexpected warning about ignored block
https://bugs.ruby-lang.org/issues/21003

* Author: decuplet (Nikita Shilnikov)
* Status: Open
* ruby -v: ruby 3.4.1 (2024-12-25 revision 48d4efcb85) +PRISM [arm64-darwin24]
* Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN
----------------------------------------
I stumbled upon this during the upgrade to 3.4. Here's the minimal repro:
```ruby
$VERBOSE = true

def foo(*, &block) = block
def bar(buz, ...) = foo(buz, ...)

bar(:test) {}
```

It gives
```
ruby reproduce.rb
reproduce.rb:6: warning: the block passed to 'Object#bar' defined at reproduce.rb:4 may be ignored
```
where I believe it shouldn't. No warning reported if I change `def bar(buz, ...)` to `def bar(...)`.



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       reply	other threads:[~2025-01-04 13:41 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-04 13:41 decuplet (Nikita Shilnikov) via ruby-core [this message]
2025-01-05  0:17 ` [ruby-core:120481] " ydah (Yudai Takada) via ruby-core
2025-01-05 18:30 ` [ruby-core:120487] " kddnewton (Kevin Newton) via ruby-core
2025-02-14  1:51 ` [ruby-core:121004] " k0kubun (Takashi Kokubun) via ruby-core

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