From: "jeremyevans0 (Jeremy Evans) via ruby-core" <ruby-core@...>
Date: 2023-08-18T03:58:30+00:00
Subject: [ruby-core:114401] [Ruby master Bug#19829] Enumerator.product called with keyword arguments raises exception with not precise message

Issue #19829 has been updated by jeremyevans0 (Jeremy Evans).


I submitted a pull request to fix this, by adding an rb_no_keywords_accepted C-API function and using that for both C methods and Ruby methods that do not accept keywords: https://github.com/ruby/ruby/pull/8243

----------------------------------------
Bug #19829: Enumerator.product called with keyword arguments raises exception with not precise message
https://bugs.ruby-lang.org/issues/19829#change-104152

* Author: andrykonchin (Andrew Konchin)
* Status: Open
* Priority: Normal
* ruby -v: 3.2.1
* Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN
----------------------------------------
The `Enumerator.product` method, added in Ruby 3.2, when it's called with keyword arguments (but it expects only a list of enums) raises `unknown keyword: ... (ArgumentError)` exception:

```ruby
Enumerator.product([], a: 1)
# (irb):1:in `product': unknown keyword: :a (ArgumentError)
```

But AFAIK `unknown keyword` is used when a method expects keyword arguments and some not supported keyword arguments were passed. So I would expect raising exception with `no keywords accepted (ArgumentError)` message instead that states clearly that no keywords should be passed.




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