[ruby-core:30451] [Bug #3352] Delegates: protected methods

Bug #3352: Delegates: protected methods
http://redmine.ruby-lang.org/issues/show/3352

Author: Marc-Andre Lafortune
Status: Open, Priority: Low
Assigned to: Marc-Andre Lafortune, Category: lib, Target version: 1.9.2
ruby -v: trunk

require 'delegate'

    class X
      protected
        def pro
          :foo
        end
    end
    obj = X.new

    obj.pro #=> NoMethodError: protected method `pro' called for #<X:0x000001008a2a68>
    SimpleDelegator.new(obj).pro #=> :foo


I feel it would be more sensible to raise a NoMethodError.

No test seem to be testing for protected access, nor does RubySpec.

Unless there is objection, I'll commit the following:

diff --git a/lib/delegate.rb b/lib/delegate.rb
index f366091..93fbc37 100644
--- a/lib/delegate.rb
+++ b/lib/delegate.rb
@@ -141,7 +141,7 @@ class Delegator < BasicObject
   def method_missing(m, *args, &block)
     target = self.__getobj__
     begin
-      target.respond_to?(m) ? target.__send__(m, *args, &block) : super(m, *args, &block)
+      target.respond_to?(m) ? target.public_send(m, *args, &block) : super
     ensure
       $@.delete_if {|t| %r"\A#{Regexp.quote(__FILE__)}:#{__LINE__-2}:"o =~ t} if $@
     end


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