From: Benoit Daloze <eregontp@...>
Date: 2010-01-25T04:02:06+09:00
Subject: Re: Writing proper getter in a Ruby way

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>
> Wait, why couldn't you just call accessors through 'self'?
>
> class Foo
>  attr_accessor :a, :b
>  def bar
>    self.a.to_i + 5
>  end
> end
>
> p Foo.new.bar
> #=> 5
> # (no warnings)
>

We are in #value, to get @value ...
class C
  attr_reader :var
  def var
    self.var || 2
  end
end

C.new.var #=> SystemStackError: stack level too deep

Anyway, we have chosen sth like:
args.unshift nil if Numeric === args.first
(@name, @value), @proc = args, proc

And then not using the accessor of attr_* for reading.
It's just a quick escape sequence from initialization.

Thanks for all your answers,
Regards,
B.D.

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