Issue #5690 has been reported by Yehuda Katz.
Author: Yehuda Katz
Status: Open
Priority: Normal
Assignee:
Category:
Target version:
ruby -v: ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin11.2.0]
It would be great if there was a way to dynamically load a constant path:
module Foo
module Bar
module Baz
end
end
end
Foo.qualified_const_get("Bar::Baz") => Foo::Bar::Baz
Comments
[ruby-trunk - Feature #5690][Closed] Module#qu
By Aaron Patterson at 11/01/2012 - 16:04Issue #5690 has been updated by tenderlovemaking (Aaron Patterson).
Status changed from Assigned to Closed
% Done changed from 0 to 100
I committed this in r37340 and r37335
Author: wycats (Yehuda Katz)
Status: Closed
Priority: Normal
Assignee: tenderlovemaking (Aaron Patterson)
Category: core
Target version: 2.0.0
It would be great if there was a way to dynamically load a constant path:
module Foo
module Bar
module Baz
end
end
end
Foo.qualified_const_get("Bar::Baz") => Foo::Bar::Baz
[ruby-trunk - Feature #5690] Module#qualified_
By Anonymous at 10/26/2012 - 20:11Issue #5690 has been updated by ko1 (Koichi Sasada).
I got SEGV.
could you run "make test-rubyspec" on your environment?
/mnt/sdb1/ruby/trunk/spec/rubyspec/core/module/const_get_spec.rb:34: [BUG] Segmentation fault
ruby 2.0.0dev (2012-10-27 trunk 37336) [x86_64-linux]
c:0031 p:---- s:0108 e:000107 CFUNC :const_get
c:0030 p:0038 s:0104 e:000103 BLOCK /mnt/sdb1/ruby/trunk/spec/rubyspec/core/module/const_get_spec.rb:34 [FINISH]
c:0029 p:---- s:0101 e:000100 CFUNC :instance_eval
c:0028 p:0014 s:0098 e:000097 METHOD /mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:69
c:0027 p:0017 s:0092 e:000091 BLOCK /mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/context.rb:179 [FINISH]
c:0026 p:---- s:0089 e:000088 IFUNC
c:0025 p:---- s:0087 e:000086 CFUNC :each
c:0024 p:---- s:0085 e:000084 CFUNC :all?
c:0023 p:0044 s:0082 e:000081 METHOD /mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/context.rb:179
c:0022 p:0077 s:0076 e:000075 BLOCK /mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/context.rb:208
c:0021 p:0004 s:0072 e:000071 BLOCK /mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:239 [FINISH]
c:0020 p:---- s:0070 e:000069 CFUNC :times
c:0019 p:0017 s:0067 e:000066 METHOD /mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:238
c:0018 p:0011 s:0064 e:000063 BLOCK /mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/context.rb:200 [FINISH]
c:0017 p:---- s:0061 e:000060 CFUNC :each
c:0016 p:0091 s:0058 e:000057 METHOD /mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/context.rb:199
c:0015 p:0087 s:0055 e:000054 METHOD /mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:38
c:0014 p:0030 s:0048 e:000047 METHOD /mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/object.rb:11
c:0013 p:0045 s:0041 e:000c28 TOP /mnt/sdb1/ruby/trunk/spec/rubyspec/core/module/const_get_spec.rb:4 [FINISH]
c:0012 p:---- s:0039 e:000038 CFUNC :load
c:0011 p:0014 s:0035 e:000034 BLOCK /mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:57 [FINISH]
c:0010 p:---- s:0033 e:000032 CFUNC :instance_eval
c:0009 p:0014 s:0030 e:000029 METHOD /mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:69
c:0008 p:0061 s:0024 e:0000e0 BLOCK /mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:57 [FINISH]
c:0007 p:---- s:0021 e:000020 CFUNC :each
c:0006 p:0042 s:0018 e:001450 METHOD /mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:51
c:0005 p:0015 s:0014 e:000013 METHOD /mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:43
c:0004 p:0047 s:0011 e:000010 METHOD /mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/commands/mspec-run.rb:91
c:0003 p:0077 s:0008 e:000007 METHOD /mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/utils/script.rb:218
c:0002 p:0047 s:0004 e:000ac8 EVAL /mnt/sdb1/ruby/trunk/spec/mspec/bin/mspec-run:8 [FINISH]
c:0001 p:0000 s:0002 e:0007f8 TOP [FINISH]
/mnt/sdb1/ruby/trunk/spec/mspec/bin/mspec-run:8:in `<main>'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/utils/script.rb:218:in `main'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/commands/mspec-run.rb:91:in `run'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:43:in `process'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:51:in `files'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:51:in `each'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:57:in `block in files'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:69:in `protect'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:69:in `instance_eval'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:57:in `block (2 levels) in files'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:57:in `load'
/mnt/sdb1/ruby/trunk/spec/rubyspec/core/module/const_get_spec.rb:4:in `<top (required)>'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/object.rb:11:in `describe'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:38:in `describe'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/context.rb:199:in `process'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/context.rb:199:in `each'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/context.rb:200:in `block in process'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:238:in `repeat'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:238:in `times'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:239:in `block in repeat'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/context.rb:208:in `block (2 levels) in process'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/context.rb:179:in `protect'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/context.rb:179:in `all?'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/context.rb:179:in `each'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/context.rb:179:in `block in protect'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:69:in `protect'
/mnt/sdb1/ruby/trunk/spec/mspec/lib/mspec/runner/mspec.rb:69:in `instance_eval'
/mnt/sdb1/ruby/trunk/spec/rubyspec/core/module/const_get_spec.rb:34:in `block (2 levels) in <top (required)>'
/mnt/sdb1/ruby/trunk/spec/rubyspec/core/module/const_get_spec.rb:34:in `const_get'
make: *** [test-rubyspec] セグメンテーション違反です
Author: wycats (Yehuda Katz)
Status: Assigned
Priority: Normal
Assignee: tenderlovemaking (Aaron Patterson)
Category: core
Target version: 2.0.0
It would be great if there was a way to dynamically load a constant path:
module Foo
module Bar
module Baz
end
end
end
Foo.qualified_const_get("Bar::Baz") => Foo::Bar::Baz
Re: [ruby-trunk - Feature #5690] Module#qualif
By Aaron Patterson at 10/26/2012 - 22:02On Sat, Oct 27, 2012 at 09:11:51AM +0900, ko1 (Koichi Sasada) wrote:
I can't seem to run `make test-rubyspec` in my environment. It always
does this:
[aaron@higgins ruby (trunk)]$ make test-rubyspec
./miniruby -I./lib -I. -I.ext/common ./tool/runruby.rb --extout=.ext -- --disable-gems ./spec/mspec/bin/mspec run -B ./spec/default.mspec
ruby 2.0.0dev (2012-10-27 trunk 37339) [x86_64-darwin12.2.0]
/Users/aaron/git/ruby/spec/mspec/lib/mspec/guards/guard.rb:156:in `block in os?': uninitialized constant SpecGuard::Config (NameError)
from /Users/aaron/git/ruby/spec/mspec/lib/mspec/guards/guard.rb:155:in `each'
from /Users/aaron/git/ruby/spec/mspec/lib/mspec/guards/guard.rb:155:in `any?'
from /Users/aaron/git/ruby/spec/mspec/lib/mspec/guards/guard.rb:155:in `os?'
from /Users/aaron/git/ruby/spec/mspec/lib/mspec/guards/platform.rb:22:in `block in match?'
I'm not sure why. Anyway, I can run mspec by hand, and this should be
fixed in r37340.
[ruby-trunk - Feature #5690] Module#qualified_
By Aaron Patterson at 10/23/2012 - 13:40Issue #5690 has been updated by tenderlovemaking (Aaron Patterson).
File p2c.diff added
I've written a patch this this feature, and I've attached it here. Will someone review so that we can figure out what needs to change before it's applied? Thank you.
Author: wycats (Yehuda Katz)
Status: Assigned
Priority: Normal
Assignee: tenderlovemaking (Aaron Patterson)
Category: core
Target version: 2.0.0
It would be great if there was a way to dynamically load a constant path:
module Foo
module Bar
module Baz
end
end
end
Foo.qualified_const_get("Bar::Baz") => Foo::Bar::Baz
[ruby-trunk - Feature #5690] Module#qualified_
By Yusuke ENDOH at 07/23/2012 - 08:39Issue #5690 has been updated by mame (Yusuke Endoh).
Assignee changed from matz (Yukihiro Matsumoto) to tenderlovemaking (Aaron Patterson)
Yehuda Katz and Aaron Patterson,
I'm happy to inform you that matz has accepted your proposal,
as one to extend existing `const_get' (not `qualified_const_get').
Aaron, could you implement a patch?
Re: [ruby-trunk - Feature #5690] Module#qualif
By Aaron Patterson at 07/23/2012 - 14:14On Mon, Jul 23, 2012 at 09:39:38PM +0900, mame (Yusuke Endoh) wrote:
Yes I will. Thanks! :-)
Re: [ruby-trunk - Feature #5690] Module#qualif
By Clifford Heath at 07/23/2012 - 21:17Aaron,
On 24/07/2012, at 4:14 AM, Aaron Patterson wrote:
Please ensure that if the lookup fails, the exception indicates which part of the name caused the failure.
It's waaay past time that the industry moves past "ENOENT: No such file or directory" in its exception reporting :)
Thank-you.
Clifford Heath.
[ruby-trunk - Feature #5690] Module#qualified_
By Anonymous at 07/14/2012 - 02:31Issue #5690 has been updated by ko1 (Koichi Sasada).
Tracker changed from Bug to Feature
Author: wycats (Yehuda Katz)
Status: Assigned
Priority: Normal
Assignee: matz (Yukihiro Matsumoto)
Category: core
Target version: 2.0.0
It would be great if there was a way to dynamically load a constant path:
module Foo
module Bar
module Baz
end
end
end
Foo.qualified_const_get("Bar::Baz") => Foo::Bar::Baz
[ruby-trunk - Bug #5690] Module#qualified_cons
By Yusuke ENDOH at 07/01/2012 - 12:54Issue #5690 has been updated by mame (Yusuke Endoh).
Aaron, your slide is received. Thank you.
marcandre (Marc-Andre Lafortune) wrote:
I'll add it verbally during the presentation, if I recall.
Re: [ruby-trunk - Bug #5690] Module#qualified_
By Aaron Patterson at 07/02/2012 - 10:35On Mon, Jul 02, 2012 at 01:54:32AM +0900, mame (Yusuke Endoh) wrote:
Thank you!
[ruby-trunk - Bug #5690] Module#qualified_cons
By Intransition at 06/30/2012 - 14:00Issue #5690 has been updated by trans (Thomas Sawyer).
I agree with marcandre. Why bother with an additional (and long named) method, when current method can suffice?
Author: wycats (Yehuda Katz)
Status: Assigned
Priority: Normal
Assignee: matz (Yukihiro Matsumoto)
Category: core
Target version: 2.0.0
ruby -v: -
It would be great if there was a way to dynamically load a constant path:
module Foo
module Bar
module Baz
end
end
end
Foo.qualified_const_get("Bar::Baz") => Foo::Bar::Baz
[ruby-trunk - Bug #5690] Module#qualified_cons
By Marc-Andre Lafortune at 06/30/2012 - 12:41Issue #5690 has been updated by marcandre (Marc-Andre Lafortune).
Cool slide :-)
+1 from me, but modifying existing `const_get`. No incompatibility as "Foo::Bar" are currently invalid constant names. And `const_set` should be modified as well (raises a Name if the path up to the last constant name does not exist or is not a Module/Class).
Author: wycats (Yehuda Katz)
Status: Assigned
Priority: Normal
Assignee: matz (Yukihiro Matsumoto)
Category: core
Target version: 2.0.0
ruby -v: -
It would be great if there was a way to dynamically load a constant path:
module Foo
module Bar
module Baz
end
end
end
Foo.qualified_const_get("Bar::Baz") => Foo::Bar::Baz
Re: [ruby-trunk - Bug #5690] Module#qualified_
By Aaron Patterson at 06/30/2012 - 15:36On Sun, Jul 01, 2012 at 01:41:30AM +0900, marcandre (Marc-Andre Lafortune) wrote:
That seems fine too. I don't really have time to update the slide
though, so I'm leaving it as is. :(
Re: [ruby-trunk - Bug #5690] Module#qualified_
By Aaron Patterson at 06/30/2012 - 15:46On Sun, Jul 01, 2012 at 04:36:55AM +0900, Aaron Patterson wrote:
I think, if matz agrees to the functionality, we can argue over the
method name (or whether to reuse const_get) later.
[ruby-trunk - Bug #5690] Module#qualified_cons
By Aaron Patterson at 06/30/2012 - 12:29Issue #5690 has been updated by tenderlovemaking (Aaron Patterson).
File bug5690.pdf added
updating the pdf
Author: wycats (Yehuda Katz)
Status: Assigned
Priority: Normal
Assignee: matz (Yukihiro Matsumoto)
Category: core
Target version: 2.0.0
ruby -v: -
It would be great if there was a way to dynamically load a constant path:
module Foo
module Bar
module Baz
end
end
end
Foo.qualified_const_get("Bar::Baz") => Foo::Bar::Baz
[ruby-trunk - Bug #5690] Module#qualified_cons
By Aaron Patterson at 06/30/2012 - 12:25Issue #5690 has been updated by tenderlovemaking (Aaron Patterson).
File bug5690.pdf added
Adding a slide for this feature.
Author: wycats (Yehuda Katz)
Status: Assigned
Priority: Normal
Assignee: matz (Yukihiro Matsumoto)
Category: core
Target version: 2.0.0
ruby -v: -
It would be great if there was a way to dynamically load a constant path:
module Foo
module Bar
module Baz
end
end
end
Foo.qualified_const_get("Bar::Baz") => Foo::Bar::Baz
[ruby-trunk - Bug #5690] Module#qualified_cons
By Marc-Andre Lafortune at 06/23/2012 - 14:22Issue #5690 has been updated by marcandre (Marc-Andre Lafortune).
Is anyone producing a slide-show for this?
Author: wycats (Yehuda Katz)
Status: Assigned
Priority: Normal
Assignee: matz (Yukihiro Matsumoto)
Category: core
Target version: 2.0.0
ruby -v: -
It would be great if there was a way to dynamically load a constant path:
module Foo
module Bar
module Baz
end
end
end
Foo.qualified_const_get("Bar::Baz") => Foo::Bar::Baz
[ruby-trunk - Bug #5690] Module#qualified_cons
By Intransition at 02/25/2012 - 12:06Issue #5690 has been updated by Thomas Sawyer.
@Xavier Let me "qualify" that ;-) I think your reasoning made very good sense for adding to ActiveSupport. But becoming part of Ruby, there is the opportunity to do it "right", as your last statement concurs.
Author: Yehuda Katz
Status: Assigned
Priority: Normal
Assignee: Yukihiro Matsumoto
Category: core
Target version: 2.0.0
ruby -v: -
It would be great if there was a way to dynamically load a constant path:
module Foo
module Bar
module Baz
end
end
end
Foo.qualified_const_get("Bar::Baz") => Foo::Bar::Baz
[ruby-trunk - Bug #5690] Module#qualified_cons
By Intransition at 02/25/2012 - 12:04Issue #5690 has been updated by Thomas Sawyer.
I don't think the name is particularly obvious. Nevertheless, I am hopeful that it won't matter. I think `const_get` can accommodate. In fact, I think it can even be made to handle:
const_get('Foo', 'Bar::Baz') #=> Foo::Bar::Baz
It is backward compatible, after all.
Author: Yehuda Katz
Status: Assigned
Priority: Normal
Assignee: Yukihiro Matsumoto
Category: core
Target version: 2.0.0
ruby -v: -
It would be great if there was a way to dynamically load a constant path:
module Foo
module Bar
module Baz
end
end
end
Foo.qualified_const_get("Bar::Baz") => Foo::Bar::Baz
[ruby-trunk - Bug #5690] Module#qualified_cons
By Xavier Noria at 02/25/2012 - 06:46Issue #5690 has been updated by Xavier Noria.
I wrote qualified_const_name in Active Support. The rationale for that name was: 1) I didn't want to touch const_get. const_get is supposed to raise an exception if the argument is not a valid constant name and "Foo::Bar" is not a valid constant name. I didn't want to change that expectation in such a fundamental method. And 2) I wanted a name that was obvious. Given that a Ruby programmer knows const_get, he will instantly know what qualified_const_get is going to do. In that sense I don't think this method is more abstract than const_get, it is in my view rather the natural companion of const_get.
That's for the current name. If this was going to be considered for Ruby 2.0 I think I'd prefer this behavior to be available in const_get itself.
Author: Yehuda Katz
Status: Assigned
Priority: Normal
Assignee: Yukihiro Matsumoto
Category: core
Target version: 2.0.0
ruby -v: -
It would be great if there was a way to dynamically load a constant path:
module Foo
module Bar
module Baz
end
end
end
Foo.qualified_const_get("Bar::Baz") => Foo::Bar::Baz
[ruby-trunk - Bug #5690] Module#qualified_cons
By Intransition at 02/25/2012 - 06:02Issue #5690 has been updated by Thomas Sawyer.
Please, can we avoid the use such abstract name.
Is the speed hit too great that Ruby's can't just use `#const_get` for this as well? I suspect the Rail's method name was chosen simply to avoid a monkey patch.
Of course, in Facets the method is just called `#constant`. Heaven forbid we use the obvious name ;-)
Author: Yehuda Katz
Status: Assigned
Priority: Normal
Assignee: Yukihiro Matsumoto
Category: core
Target version: 2.0.0
ruby -v: -
It would be great if there was a way to dynamically load a constant path:
module Foo
module Bar
module Baz
end
end
end
Foo.qualified_const_get("Bar::Baz") => Foo::Bar::Baz
Re: [ruby-trunk - Bug #5690][Open] Module#qual
By SASADA Koichi at 02/25/2012 - 00:31(2011/11/30 12:10), Yehuda Katz wrote:
Any progress on it?
There are several similar proposals.
I think 2.0 is a good opportunity to finish such discussion.
BTW, is it a "BUG"? (on title)
Re: [ruby-trunk - Bug #5690][Open] Module#qual
By Yukihiro Matsumoto at 11/30/2011 - 02:04Hi,
In message "Re: [ruby-core:41404] [ruby-trunk - Bug #5690][Open] Module#qualified_const_get"
on Wed, 30 Nov 2011 12:10:02 +0900, Yehuda Katz < ... at gmail dot com> writes:
|It would be great if there was a way to dynamically load a constant path:
|
| module Foo
| module Bar
| module Baz
| end
| end
| end
|
| Foo.qualified_const_get("Bar::Baz") => Foo::Bar::Baz
Interesting.
* is there any use-case for this method?
* if Bar is not a class nor module, what kind error should be raised?
* is qualified_const_get an appropriate name for the function?
matz.
Re: [ruby-trunk - Bug #5690][Open] Module#qual
By Yehuda Katz at 11/30/2011 - 03:52Yehuda Katz
(ph) 718.877.1325
On Tue, Nov 29, 2011 at 10:04 PM, Yukihiro Matsumoto <matz@ruby-lang.org>wrote:
We use it often in Rails.
TypeError: "(…) is not a class/module"
Unknown. It's what we call it in Rails ;)
Re: [ruby-trunk - Bug #5690][Open] Module#qual
By Aaron Patterson at 11/30/2011 - 21:04On Wed, Nov 30, 2011 at 04:52:36PM +0900, Yehuda Katz wrote:
When serializing objects to yaml, the fully qualified class name is
emitted. When reviving those objects, the class name comes back as a
string, so psych uses rb_path2class to find the constant.
Agreed.
Yes.
Re: [ruby-trunk - Bug #5690][Open] Module#qual
By Yukihiro Matsumoto at 11/30/2011 - 05:17Hi,
In message "Re: [ruby-core:41408] Re: [ruby-trunk - Bug #5690][Open] Module#qualified_const_get"
on Wed, 30 Nov 2011 16:52:36 +0900, Yehuda Katz < ... at gmail dot com> writes:
|> * is there any use-case for this method?
|
|We use it often in Rails.
Could you show us the concrete example? It is difficult for me to
imagine.
|> * if Bar is not a class nor module, what kind error should be raised?
|>
|
|TypeError: "(…) is not a class/module"
Understood.
|> * is qualified_const_get an appropriate name for the function?
|>
|
|Unknown. It's what we call it in Rails ;)
How about
Foo.const_get("Bar::Baz")
or
Foo.const_get(:Bar, :Baz)
?
matz.
Re: [ruby-trunk - Bug #5690][Open] Module#qual
By Yehuda Katz at 11/30/2011 - 16:59Yehuda Katz
(ph) 718.877.1325
2011/11/30 Yukihiro Matsumoto <matz@ruby-lang.org>
One case is to convert path names (file system paths) into constants.
In general, Rails uses inflections to convert names from different
contexts. In the router, for instance, "foo/bar" is used to represent
namespaces, which are then converted into "Foo::Bar" and then Foo::Bar.
Sounds good to me. Currently, trying to const_set or const_get a name with
:: in it produces a NameError, so it should not introduces new issues.
This doesn't satisfy the use-case in question.
Re: [ruby-trunk - Bug #5690][Open] Module#qual
By NARUSE, Yui at 12/03/2011 - 23:34(2011/12/01 5:59), Yehuda Katz wrote:
"concrete exapmle" needs "what is the router?" and "when the router is used?".
[ruby-trunk - Bug #5690][Assigned] Module#qual
By NARUSE, Yui at 11/29/2011 - 23:13Issue #5690 has been updated by Yui NARUSE.
Category set to core
Status changed from Open to Assigned
Assignee set to Yukihiro Matsumoto
Target version set to 2.0.0
Author: Yehuda Katz
Status: Assigned
Priority: Normal
Assignee: Yukihiro Matsumoto
Category: core
Target version: 2.0.0
ruby -v: ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin11.2.0]
It would be great if there was a way to dynamically load a constant path:
module Foo
module Bar
module Baz
end
end
end
Foo.qualified_const_get("Bar::Baz") => Foo::Bar::Baz