From: Pit Capitain <pit@...>
Date: 2005-07-19T19:31:05+09:00
Subject: Re: Querying private singleton methods

Pit Capitain <pit <at> capitain.de> writes:

> ... So there's no way to ask about private singleton methods.

Just a followup: I found a hack to get at private singleton methods:

  class Object
    
    def private_singleton_methods( all = true )
      self_priv = private_methods( all )
      class_priv = self.class.private_instance_methods( all )
      ( self_priv - class_priv ) | ( self_priv & class_priv ).select { |method|
        definer = self.class.ancestors.find { |klass|
          klass.private_instance_methods( false ).include?( method )
        }
        definer.send( :public, method )
        begin
          private_methods( all ).include?( method )
        ensure
          definer.send( :private, method )
        end
      }
    end
    
    def protected_singleton_methods( all = true )
      protected_methods( all ) & singleton_methods( all )
    end
    
    def public_singleton_methods( all = true )
      public_methods( all ) & singleton_methods( all )
    end
    
  end

Still I think there should be a better way. Comments?

Regards,
Pit