From: Phrogz <phrogz@...>
Date: 2007-09-08T03:15:09+09:00
Subject: Re: Singleton aliases

On Sep 7, 12:06 pm, Nikolay Pavlov <qpa...@gmail.com> wrote:
> I have a class with instance method "each" and i want to add variable
> aliases for it based on some preferences of the generated objects.

class Foo
  def each
    p "each called for #{self}"
    yield
  end
end

f1 = Foo.new

def f1.some(&block)
  each(&block)
end

f1.each{ p 'hi!' }
#=> "each called for #<Foo:0x7ffa72cc>"
#=> "hi!"

f1.some{ p 'aliased' }
#=> "each called for #<Foo:0x7ffa72cc>"
#=> "aliased"


f2 = Foo.new
class << f2
  alias_method :yow, :each
end

f2.yow{ p 'simpler' }
#=> "each called for #<Foo:0x7ffa6e30>"
#=> "simpler"