From: Chris Hall <christopher.k.hall@...>
Date: 2007-10-06T04:22:50+09:00
Subject: Proc comparison

i'm having an issue where i need to compare 2 objects by comparing a
Proc which is stored in an instance var.  however, everything i have
tried results in a false comparison.

simple example:

class Test
  attr :action

  def initialize(&block)
    @action = block_given? ? block : nil
  end

  def ==(obj)
    if obj.is_a?(Test)
      return @action.eql?(obj.action)
    end
  end
end

t1 = Test.new { puts "hello" }
t2 = Test.new { puts "hello" }

puts "comp: #{t1 == t2}"
puts "t1 action: #{t1.action}"
puts "t2 action: #{t2.action}"



output:

comp: false
t1 action: #<Proc:0x00025134@eql_test.rb:15>
t2 action: #<Proc:0x0002501c@eql_test.rb:16>


when the objects are created, i use the same block of code when i create
each instance, however, it obvious that from the comparison output they
aren't the same.  my question, how do i get the comparison i'm looking
for?
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