[ruby-core:98558] [Ruby master Feature#16378] Support leading arguments together with ...

Issue #16378 has been updated by Eregon (Benoit Daloze).


Interesting, I never saw the reply above from matz.
Looking at my email I received one but it wasn't attached to the rest of the conversation for this issue for some reason.

Great to hear it's now accepted.

I think we should have it already in 2.7.2+.
Many people clearly want it in #16891.

@jeremyevans0 or @nobu Could you implement it on `master`?

----------------------------------------
Feature #16378: Support leading arguments together with ...
https://bugs.ruby-lang.org/issues/16378#change-85852

* Author: Eregon (Benoit Daloze)
* Status: Open
* Priority: Normal
* Assignee: matz (Yukihiro Matsumoto)
* Target version: 3.0
----------------------------------------
I think this is very important, otherwise `...` can be used only very rarely.

For instance, `method_missing` typically want to access the method name like:
```ruby
def method_missing(name, ...)
  if name.to_s.end_with?('?')
    self[name]
  else
    fallback(name, ...)
  end
end
```

See the original feature: https://bugs.ruby-lang.org/issues/16253#note-19.
I think most people expect `def method_missing(name, ...)` to work.



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