[#66678] [ruby-trunk - Feature #10481] Add "if" and "unless" clauses to rescue statements — alex@...
Issue #10481 has been updated by Alex Boyd.
3 messages
2014/12/04
[#66762] Re: [ruby-changes:36667] normal:r48748 (trunk): struct: avoid all O(n) behavior on access — Tanaka Akira <akr@...>
2014-12-10 0:44 GMT+09:00 normal <ko1@atdot.net>:
3 messages
2014/12/10
[#66851] [ruby-trunk - Feature #10585] struct: speedup struct.attr = v for first 10 attributes and struct[:attr] for big structs — funny.falcon@...
Issue #10585 has been updated by Yura Sokolov.
3 messages
2014/12/15
[#67126] Ruby 2.2.0 Released — "NARUSE, Yui" <naruse@...>
We are pleased to announce the release of Ruby 2.2.0.
8 messages
2014/12/25
[#67128] Re: Ruby 2.2.0 Released
— Rodrigo Rosenfeld Rosas <rr.rosas@...>
2014/12/25
I can't install it in any of our Ubuntu servers using rbenv:
[#67129] Re: Ruby 2.2.0 Released
— SHIBATA Hiroshi <shibata.hiroshi@...>
2014/12/25
> I can't install it in any of our Ubuntu servers using rbenv:
[ruby-core:66898] [ruby-trunk - Bug #10450] multiple assignment in conditional
From:
duerst@...
Date:
2014-12-17 06:46:30 UTC
List:
ruby-core #66898
Issue #10450 has been updated by Martin D端rst.
It seems that both Matz and I got confused. That's not too surprising because the first example has no parentheses.
I suggest the following:
- Create a new issue that strictly concentrates on the case WITH parentheses.
- Beef up the pull request with the necessary changes to tests.
Please note that Matz can still reject the issue if he doesn't like it (e.g. because he feels it's too confusing,...).
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Bug #10450: multiple assignment in conditional
https://bugs.ruby-lang.org/issues/10450#change-50449
* Author: bug hit
* Status: Rejected
* Priority: Normal
* Assignee:
* Category:
* Target version:
* ruby -v: ruby 2.1.4p265 (2014-10-27 revision 48166) [x86_64-linux]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
----------------------------------------
multiple assignment is an expression whose value can be truthy (array) or falsy (nil, false), so why is there a restriction on its use in conditionals? A warning perhaps is justified, but a syntax error, why?
irb(main):001:0> if a, b = nil then 1 else 0 end
SyntaxError: (irb):1: syntax error, unexpected ',', expecting keyword_then or ';' or '\n'
if a, b = nil then 1 else 0 end
^
(irb):1: syntax error, unexpected keyword_then, expecting end-of-input
if a, b = nil then 1 else 0 end
^
from /home/alex/.rbenv/versions/2.1.4/bin/irb:11:in `<main>'
irb(main):002:0> if (a, b = nil) then 1 else 0 end
SyntaxError: (irb):2: multiple assignment in conditional
from /home/alex/.rbenv/versions/2.1.4/bin/irb:11:in `<main>'
irb(main):003:0> (a, b = nil) ? 1 : 0
SyntaxError: (irb):3: multiple assignment in conditional
from /home/alex/.rbenv/versions/2.1.4/bin/irb:11:in `<main>'
irb(main):004:0> (a, b = nil)
=> nil
--
https://bugs.ruby-lang.org/