Feature #9779

Add Module#descendents

Added by Shugo Maeda 10 months ago. Updated 10 months ago.

[ruby-core:62193]
Status:Open
Priority:Normal
Assignee:-

Description

Now classes have links to their subclasses, so how about to add Module#descendents?

class X
end

class Y < X
end

class Z < Y
end

p X.descendents    #=> [X, Y, Z]

module A
end

module B
  include A
end

module C
  include A
end

p A.descendents    #=> [A, C, B]

One of my own use cases is to implement AspectJ like pointcut which matches all subclasses of the given class.

Considerations:

  • Should the return value of Module#descendents include self?
  • Should the return value of Module#descendents include singleton classes?

I attach a patch, where the return value includes both self and singleton classes.

0001-Add-Module-descendents.patch Magnifier (3.75 KB) Shugo Maeda, 04/28/2014 07:00 AM

History

#1 Updated by Shugo Maeda 10 months ago

s/descendents/descendants/

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