From: Roger Pack <rogerdpack2@...>
Date: 2010-03-20T01:52:29+09:00
Subject: [ruby-core:28799] Re: [Feature #2065] An ancestors iterator

> For DSLs that want to have method-like inheritance, the lack of an ancestors iterator is a potential and unnecessary bottleneck. �An each_ancestor iterator would, as per the benchmarks, significantly speed up a useful programming pattern that I think would be used more frequently if it were inherently faster. I hope that clarifies the purpose of this request.

Potentially a bottleneck but is it actually? You could instead use
#ancestors.each or roll your own...

 class Module
   def each_ancestor
     ancestors.each{|a| yield(a)}
   end
 end


or a faster version (if you can cache)

 class Module
   def each_ancestor
     @ancestors ||= ancestors
     @ancestors.each{|a| yield(a)}
   end
 end

Cheers.

-rp