[#63592] [ruby-trunk - Bug #10009] IO operation is 10x slower in multi-thread environment — normalperson@...
Issue #10009 has been updated by Eric Wong.
3 messages
2014/07/08
[#63682] [ruby-trunk - Feature #10030] [PATCH] reduce rb_iseq_struct to 296 bytes — ko1@...
Issue #10030 has been updated by Koichi Sasada.
3 messages
2014/07/13
[#63703] [ruby-trunk - Feature #10030] [PATCH] reduce rb_iseq_struct to 296 bytes — ko1@...
Issue #10030 has been updated by Koichi Sasada.
3 messages
2014/07/14
[#63743] [ruby-trunk - Bug #10037] Since r46798 on Solaris, "[BUG] rb_vm_get_cref: unreachable" during make — ngotogenome@...
Issue #10037 has been updated by Naohisa Goto.
3 messages
2014/07/15
[#64136] Ruby 2.1.2 (and 2.1.1 and probably others) assumes a libffi with 3 version numbers in extconf.rb — "Jeffrey 'jf' Lim" <jfs.world@...>
As per subject.
4 messages
2014/07/31
[#64138] Re: Ruby 2.1.2 (and 2.1.1 and probably others) assumes a libffi with 3 version numbers in extconf.rb
— "Jeffrey 'jf' Lim" <jfs.world@...>
2014/07/31
On Thu, Jul 31, 2014 at 6:03 PM, Jeffrey 'jf' Lim <[email protected]>
[ruby-core:63986] [ruby-trunk - Bug #10042] Deprecate postfix rescue syntax for removal in 3.0
From:
sowieso@...
Date:
2014-07-23 18:20:43 UTC
List:
ruby-core #63986
Issue #10042 has been updated by So Wieso.
Hi, I'm against it :-)
Nobody is forced to use it, and for short scripts it can be quite useful.
For example to fetch some websites, if they exist:
`
require 'open-uri'
urls =3D =E2=80=A6
urls.each do |url|
open(url) do
#save the file
end rescue nil
end
`
But it would be ok for me if we need to specify the Exception.
----------------------------------------
Bug #10042: Deprecate postfix rescue syntax for removal in 3.0
https://bugs.ruby-lang.org/issues/10042#change-48004
* Author: Charles Nutter
* Status: Open
* Priority: Normal
* Assignee:=20
* Category: core
* Target version: next minor
* ruby -v: 2.1 something
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
----------------------------------------
The postfix rescue notation is convenient...but almost always is a really b=
ad antipattern.
An example of the notation:
Integer(f) rescue f # returns f if it is not parseable as an Integer
It silently ignores all StandardError raised by a piece of code...which oft=
en covers *many* more exceptions than the user *wants* to be ignoring.
It also hides the cost of constructing and throwing away all those ignored =
exceptions.
I believe Matz has even said in the past that he regrets adding the feature.
In any case, I propose that "rescue nil" should be deprecated with a warnin=
g (either always on or only when verbose) and we should plan to remove it i=
n 3.0.
Who's with me?!
--=20
https://bugs.ruby-lang.org/