Hello,
I'd like to get the list of all the classes contained in a module.
What's the simple way to do that?
Thank you
···
--
Posted via http://www.ruby-forum.com/.
Here's a quick and dirty implementation using ObjectSpace
module LibraryWrapperThing
class UtilityClassA; end
class Fish; end
class Dog; end
end
class NotMe; end
classes =
ObjectSpace.each_object do |obj|
classes << obj if Module === obj
end
p classes.select {|c| c.name =~ /^LibraryWrapperThing:
}
# => [LibraryWrapperThing::Dog, LibraryWrapperThing::Fish, ...]
···
On Feb 1, 8:50 pm, Camille Roux <roux.cami...@gmail.com> wrote:
Hello,
I'd like to get the list of all the classes contained in a module.
What's the simple way to do that?Thank you
--
Posted viahttp://www.ruby-forum.com/.
Hello,
I'd like to get the list of all the classes contained in a module.
What's the simple way to do that?
module Foo; A = 1; class B; end; module C; end end
=> nil
Foo.constants.find_all { |k| Class === Foo.const_get(k) }
=> ["B"]
···
On Tue, Feb 02, 2010 at 04:50:34AM +0900, Camille Roux wrote:
--
Aaron Patterson
http://tenderlovemaking.com/
+1 
···
On Feb 1, 10:06 pm, Aaron Patterson <aa...@tenderlovemaking.com> wrote:
>> module Foo; A = 1; class B; end; module C; end end
=> nil
>> Foo.constants.find_all { |k| Class === Foo.const_get(k) }=> ["B"]
Hello,
I'd like to get the list of all the classes contained in a module.
What's the simple way to do that?module Foo; A = 1; class B; end; module C; end end
=> nil
Foo.constants.find_all { |k| Class === Foo.const_get(k) }
=> ["B"]
Personally, I usually map first:
Foo.constants.map { |s| Foo.const_get s }.find_all { |k| Class === k }
=> [Foo::B]
···
On Feb 1, 2010, at 13:06 , Aaron Patterson wrote:
On Tue, Feb 02, 2010 at 04:50:34AM +0900, Camille Roux wrote:
Hello,
I'd like to get the list of all the classes contained in a module.
What's the simple way to do that?module Foo; A = 1; class B; end; module C; end end
=> nil
Foo.constants.find_all { |k| Class === Foo.const_get(k) }
=> ["B"]
Personally, I usually map first:
Foo.constants.map { |s| Foo.const_get s }.find_all { |k| Class === k }
=> [Foo::B]
Then you can switch the the under loved grep():
Foo.constants.map { |s| Foo.const_get s }.grep(Class)
=> [Foo::B]
James Edward Gray II
···
On Feb 1, 2010, at 3:38 PM, Ryan Davis wrote:
On Feb 1, 2010, at 13:06 , Aaron Patterson wrote:
On Tue, Feb 02, 2010 at 04:50:34AM +0900, Camille Roux wrote:
Ah! I always forget about that one. Good catch.
···
On Feb 1, 2010, at 13:55 , James Edward Gray II wrote:
On Feb 1, 2010, at 3:38 PM, Ryan Davis wrote:
Personally, I usually map first:
Foo.constants.map { |s| Foo.const_get s }.find_all { |k| Class === k }
=> [Foo::B]
Then you can switch the the under loved grep():
Foo.constants.map { |s| Foo.const_get s }.grep(Class)
=> [Foo::B]