From: matz@...
Date: 2020-06-18T05:36:02+00:00
Subject: [ruby-core:98855] [Ruby master Bug#16504] `foo(*args, &args.pop)` should pass all elements of args

Issue #16504 has been updated by matz (Yukihiro Matsumoto).


Accepted. We can ignore incompatibility here.

Matz.


----------------------------------------
Bug #16504: `foo(*args, &args.pop)` should pass all elements of args
https://bugs.ruby-lang.org/issues/16504#change-86217

* Author: mame (Yusuke Endoh)
* Status: Open
* Priority: Normal
* 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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