[ruby-core:115169] [Ruby master Bug#19973] Duplicate keyword argument names don't always warn
From:
"tenderlovemaking (Aaron Patterson) via ruby-core" <ruby-core@...>
Date:
2023-10-25 20:32:35 UTC
List:
ruby-core #115169
Issue #19973 has been reported by tenderlovemaking (Aaron Patterson).
----------------------------------------
Bug #19973: Duplicate keyword argument names don't always warn
https://bugs.ruby-lang.org/issues/19973
* Author: tenderlovemaking (Aaron Patterson)
* Status: Open
* Priority: Normal
* ruby -v: ruby 3.3.0dev (2023-10-24T19:38:50Z cleanup 3525a9bd22) [arm64-darwin23]
* Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN
----------------------------------------
Calling a method with duplicate keyword arguments doesn't warn when it could:
```ruby
def bar a:, b:
a + b
end
# Warning
bar(a: 1, b: 3, a: 2)
z = { b: 123 }
# No warning
bar(a: 1, **z, a: 2)
```
The first call to `bar` gives a warning about duplicate keyword args, but the second call doesn't. I think both cases should emit a warning.
--
https://bugs.ruby-lang.org/
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