From: slowhog <henryjen@...>
Date: 2010-01-26T15:57:01+09:00
Subject: Is there a way to have instance_eval cannot call private/protected 	method?

Hi,

Is there any mechanism to do what instance_eval but honor the
visibility? I want to something like following, but would like the
block passed to real_object can only only have access to public
methods.

I did a little search, seems like 1.8.5 does that, but was changed in
1.8.6[1]. While I don't know the history, I am interested to learn
about the rational, and if there is a replacement for that behavior.

Thanks in advance,
Henry

[1] http://jamesgolick.com/2007/9/28/ruby-1-8-5-_eval-methods-are-subject-to-access-modifiers-on-self.html


class RealObject
  private
    def method1(param)
      puts "Test Method 1: #{param}"
    end
  public
    def method2(param)
      puts "Test Method 2: #{param}"
    end
end

def real_object(&block)
  x = RealObject.new
  x.instance_eval &block
end

real_object {
  method2 "m2"
  method2 "m2.2"
  method1 "please fail me"
}