[ruby-core:96825] [Ruby master Bug#16504] `foo(*args, &args.pop)` should pass all elements of args
From:
eregontp@...
Date:
2020-01-13 13:21:27 UTC
List:
ruby-core #96825
Issue #16504 has been updated by Eregon (Benoit Daloze).
Agreed left-to-right would be far more consistent.
We just need to be aware that whoever writes `foo(*args, &args.pop)` probably expects no duplication (so they would disagree on "bug" probably).
But such code deserves to be clearer IMHO.
----------------------------------------
Bug #16504: `foo(*args, &args.pop)` should pass all elements of args
https://bugs.ruby-lang.org/issues/16504#change-83823
* Author: mame (Yusuke Endoh)
* Status: Open
* Priority: Normal
* Assignee:
* Target version:
* 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
```
# 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)
```
--
https://bugs.ruby-lang.org/
Unsubscribe: <mailto:ruby-core-request@ruby-lang.org?subject=unsubscribe>
<http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>