From: mame@...
Date: 2020-06-18T05:39:00+00:00
Subject: [ruby-core:98856] [Ruby master Bug#16504] `foo(*args, &args.pop)` should pass all elements of args

Issue #16504 has been updated by mame (Yusuke Endoh).

Assignee set to jeremyevans0 (Jeremy Evans)

jeremyevans0 (Jeremy Evans) wrote in #note-13:
> mame (Yusuke Endoh) wrote in #note-12:
> > jeremyevans0 (Jeremy Evans) wrote in #note-9:
> > > I've added a pull request that fixes this issue: https://github.com/ruby/ruby/pull/3157
> > 
> > Wow https://bugs.ruby-lang.org/issues/16504#note-1
> 
> Sorry, I completely missed that you also had a fix for this (basically the same other than the test added).

Don't worry.  It is good to know that two persons reached the same solution independently.  Your patch is better because it includes tests, so could you commit your patch?

----------------------------------------
Bug #16504: `foo(*args, &args.pop)` should pass all elements of args
https://bugs.ruby-lang.org/issues/16504#change-86218

* Author: mame (Yusuke Endoh)
* Status: Open
* Priority: Normal
* Assignee: jeremyevans0 (Jeremy Evans)
* ruby -v: ruby 2.7.0p0 (2019-12-25 revision 647ee6f091) [x86_64-linux]
* Backport: 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN
----------------------------------------
https://bugs.ruby-lang.org/issues/16500?next_issue_id=16499&prev_issue_id=16501#note-7

```
def foo(*args)
  p args
end

# in 2.7
args = [1, 2, -> {}]; foo(   *args, &args.pop) #=> passes [1, 2] (bug; [1, 2, ->{}] is expected)
args = [1, 2, -> {}]; foo(0, *args, &args.pop) #=> passes [0, 1, 2, ->{}] (good)
```



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