From: Phrogz <gavin@...>
Date: 2006-09-02T03:20:32+09:00
Subject: Re-binding Proc

Is there a way to call a proc while passing in the binding/scope for
'self'? I found an un-responded-to question on this (ruby-talk:12794)
in 2001 which implies that, at least then, there was no way to do it.

What I'm doing:
class Foo
  @@handlers = {}

  def self.handle_type( type, &proc )
    @@handlers[ type ] = proc
  end

  attr_reader :name
  def initialize( name )
    @name = name
  end

  def do_thing( type )
    @@handlers[ type ].call( self )
  end
end

Foo.handle_type( :showname ){ |me|
  puts "My name is '#{me.name}'"
}

f = Foo.new( 'f' )
f.do_thing( :showname )
#=> My name is 'f'


What I'd like to do instead:

Foo.handle_type( :showname ){
  puts "My name is '#{self.name}'"
}