[#44036] [ruby-trunk - Feature #6242][Open] Ruby should support lists — "shugo (Shugo Maeda)" <redmine@...>

20 messages 2012/04/01

[#44084] [ruby-trunk - Bug #6246][Open] 1.9.3-p125 intermittent segfault — "jshow (Jodi Showers)" <jodi@...>

22 messages 2012/04/02

[#44156] [ruby-trunk - Feature #6265][Open] Remove 'useless' 'concatenation' syntax — "rosenfeld (Rodrigo Rosenfeld Rosas)" <rr.rosas@...>

45 messages 2012/04/06

[#44163] [ruby-trunk - Bug #6266][Open] encoding related exception with recent integrated psych — "jonforums (Jon Forums)" <redmine@...>

10 messages 2012/04/06

[#44303] [ruby-trunk - Feature #6284][Open] Add composition for procs — "pabloh (Pablo Herrero)" <pablodherrero@...>

57 messages 2012/04/12

[#44349] [ruby-trunk - Feature #6293][Open] new queue / blocking queues — "tenderlovemaking (Aaron Patterson)" <aaron@...>

10 messages 2012/04/13

[#44402] [ruby-trunk - Feature #6308][Open] Eliminate delegation from WeakRef — "headius (Charles Nutter)" <headius@...>

20 messages 2012/04/17

[#44403] [ruby-trunk - Feature #6309][Open] Add a reference queue for weak references — "headius (Charles Nutter)" <headius@...>

15 messages 2012/04/17

[#44533] [ruby-trunk - Bug #6341][Open] SIGSEGV: Thread.new { fork { GC.start } }.join — "rudolf (r stu3)" <redmine@...>

24 messages 2012/04/22

[#44630] [ruby-trunk - Feature #6361][Open] Bitwise string operations — "MartinBosslet (Martin Bosslet)" <Martin.Bosslet@...>

31 messages 2012/04/26

[#44648] [ruby-trunk - Feature #6367][Open] #same? for Enumerable — "prijutme4ty (Ilya Vorontsov)" <prijutme4ty@...>

16 messages 2012/04/26

[#44704] [ruby-trunk - Feature #6373][Open] public #self — "trans (Thomas Sawyer)" <transfire@...>

61 messages 2012/04/27

[#44748] [ruby-trunk - Feature #6376][Open] Feature lookup and checking if feature is loaded — "trans (Thomas Sawyer)" <transfire@...>

13 messages 2012/04/28

[ruby-core:44204] [ruby-trunk - Feature #6270][Rejected] add "??a" support for "not defined?(a) or a.nil?"

From: "matz (Yukihiro Matsumoto)" <matz@...>
Date: 2012-04-08 23:23:13 UTC
List: ruby-core #44204
Issue #6270 has been updated by matz (Yukihiro Matsumoto).

Status changed from Open to Rejected

As Eric pointed out, it's conflicting existing syntax.  I don't reject the basic idea (though I am excited), so try again with new syntax if you really want this.

Matz.

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Feature #6270: add "??a" support for "not defined?(a) or a.nil?"
https://bugs.ruby-lang.org/issues/6270#change-25731

Author: jacksonwillis (Jackson Willis)
Status: Rejected
Priority: Low
Assignee: 
Category: 
Target version: 3.0


It would work like this:

    ??foo #=> nil

    foo = nil

    ??foo #=> nil

    foo = 3

    ??foo #=> true

Not sure if this would be useful, just a suggestion.


-- 
http://bugs.ruby-lang.org/

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