Module children

[Camille Roux]

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

 

[August Lilleaas]

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

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:og, LibraryWrapperThing::Fish, ...]

 

[Aaron Patterson]

Hello,

I'd like to get the list of all the classes contained in a module.
What's the simple way to do that?

=> ["B"]

 

[August Lilleaas]

=> ["B"]

+1

 

[Ryan Davis]

Hello,

I'd like to get the list of all the classes contained in a module.
What's the simple way to do that?

=> ["B"]

Personally, I usually map first:
=> [Foo::B]

 

[James Edward Gray II]

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::B]

Then you can switch the the under loved grep():
=> [Foo::B]

James Edward Gray II

 

[Ryan Davis]

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::B]

Ah! I always forget about that one. Good catch.