Issue #16378 has been updated by Dan0042 (Daniel DeLorme).


In the [DevelopersMeeting20191017Japan log](https://docs.google.com/document/d/1-IC98nOPY_FZnne2PXILYAaxt6PqHfhphAI908K3vD8/edit) there was "Future work: lead argument handling is postponed", so clearly there was the intention of adding it later.

----------------------------------------
Feature #16378: Support leading arguments together with ...
https://bugs.ruby-lang.org/issues/16378#change-83452

* Author: Eregon (Benoit Daloze)
* Status: Open
* Priority: Normal
* Assignee: matz (Yukihiro Matsumoto)
* Target version: 3.0
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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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