From: "P.S.V.R" <pmq2001@gmail.com>
To: Ruby developers <ruby-core@ruby-lang.org>
Subject: [ruby-core:70855] Re: [Ruby trunk - Feature #11537] [Open] Introduce "Safe navigation operator"
Date: Fri, 18 Sep 2015 17:31:20 +0800 [thread overview]
Message-ID: <CANUgXR_yiJDjtWTvdq7wC=VbbLESFjEXSJyBrJtHNwwWt=Zgcw@mail.gmail.com> (raw)
In-Reply-To: <redmine.issue-11537.20150918092909.e7df845caf14c109@ruby-lang.org>
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+1
On Fri, Sep 18, 2015 at 5:29 PM, <shibata.hiroshi@gmail.com> wrote:
> Issue #11537 has been reported by Hiroshi SHIBATA.
>
> ----------------------------------------
> Feature #11537: Introduce "Safe navigation operator"
> https://bugs.ruby-lang.org/issues/11537
>
> * Author: Hiroshi SHIBATA
> * Status: Open
> * Priority: Normal
> * Assignee: Yukihiro Matsumoto
> ----------------------------------------
> I somtimes write following code with rails application:
>
> ```rb
> u = User.find(id)
> if u && u.profile && u.profile.thumbnails && u.profiles.thumbnails.large
> ...
> ```
>
> or
>
> ```rb
> # Use ActiveSupport
> if u.try!(:profile).try!(:thumbnails).try!(:large)
> ...
> ```
> I hope to write shortly above code. Groovy has above operator named "Safe
> navigation operator" with "?." syntax.
> Ruby can't use "?." operator.
>
> Can we use ".?" syntax. like this:
>
> ```rb
> u = User.find(id)
> u.?profile.?thumbnails.?large
> ```
>
> Matz. How do you think about this?
>
>
>
>
> --
> https://bugs.ruby-lang.org/
>
--
https://github.com/pmq20
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next prev parent reply other threads:[~2015-09-18 9:08 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <redmine.issue-11537.20150918092909@ruby-lang.org>
2015-09-18 9:29 ` [ruby-core:70854] [Ruby trunk - Feature #11537] [Open] Introduce "Safe navigation operator" shibata.hiroshi
2015-09-18 9:31 ` P.S.V.R [this message]
2015-09-18 14:34 ` [ruby-core:70856] [Ruby trunk - Feature #11537] " rr.rosas
2015-09-19 0:42 ` [ruby-core:70861] " nobu
2015-09-19 4:09 ` [ruby-core:70862] " matthew
2015-09-23 17:04 ` [ruby-core:70892] " rr.rosas
2015-10-07 14:30 ` [ruby-core:71012] " matz
2015-10-07 16:51 ` [ruby-core:71015] " sawadatsuyoshi
2015-10-21 7:45 ` [ruby-core:71129] " matz
2015-10-21 8:05 ` [ruby-core:71130] " matz
2015-10-21 10:21 ` [ruby-core:71132] " rr.rosas
2015-10-21 19:29 ` [ruby-core:71135] " ruby-core
2015-10-21 23:33 ` [ruby-core:71137] " nobu
2015-10-22 16:29 ` [ruby-core:71157] " treznick
2015-10-22 16:34 ` [ruby-core:71158] " ary
2015-10-22 16:45 ` [ruby-core:71160] " merch-redmine
2015-10-22 21:19 ` [ruby-core:71166] " Matthew Kerwin
2015-10-23 3:58 ` [ruby-core:71169] " treznick
2015-10-26 5:10 ` [ruby-core:71182] " transfire
2015-10-26 11:22 ` [ruby-core:71184] " garysweaver
2015-10-26 12:25 ` [ruby-core:71186] " wycats
2015-10-26 13:28 ` [ruby-core:71189] " nobu
2015-10-26 13:58 ` [ruby-core:71190] " rr.rosas
2015-10-27 9:13 ` [ruby-core:71213] " philip.claren
2015-10-27 11:47 ` [ruby-core:71215] " rr.rosas
2015-10-27 12:01 ` [ruby-core:71216] " mame
2015-10-27 12:07 ` [ruby-core:71217] " rr.rosas
2015-10-27 12:24 ` [ruby-core:71218] " mame
2015-10-27 12:31 ` [ruby-core:71219] " rr.rosas
2015-10-27 12:45 ` [ruby-core:71220] " mame
2015-10-27 14:31 ` [ruby-core:71221] " matz
2015-10-29 19:32 ` [ruby-core:71271] " alonecomp
2015-10-29 21:00 ` [ruby-core:71273] " Matthew Kerwin
2015-11-04 0:01 ` [ruby-core:71322] " transfire
2015-11-04 0:07 ` [ruby-core:71324] " transfire
2015-11-04 0:32 ` [ruby-core:71325] " nobu
2015-11-04 0:44 ` [ruby-core:71326] " matz
2015-11-05 23:01 ` [ruby-core:71360] " tom.enebo
2015-11-05 23:42 ` [ruby-core:71361] " Eric Wong
2015-11-06 1:25 ` [ruby-core:71363] " matz
2015-11-06 1:50 ` [ruby-core:71364] " tom.enebo
2015-11-06 2:21 ` [ruby-core:71365] " nobu
2015-11-06 4:16 ` [ruby-core:71370] [Ruby trunk - Feature #11537] [Open] " shugo
2015-11-06 18:06 ` [ruby-core:71373] [Ruby trunk - Feature #11537] " rr.rosas
2015-11-07 0:49 ` [ruby-core:71374] " nobu
2015-11-07 2:32 ` [ruby-core:71375] " ko1
2015-11-09 14:39 ` [ruby-core:71417] " tom.enebo
2015-11-13 10:46 ` [ruby-core:71483] " uwe
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