From: Arlen Cuss <celtic@...>
Date: 2008-02-25T19:51:25+09:00
Subject: Re: Suprising behaviour with "def property=" method

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On Mon, Feb 25, 2008 at 12:03 PM, 7stud -- <bbxx789_05ss@yahoo.com> wrote:

> class Dog
>  def secret_code=(seed)
>    @secret_code = seed * 10 + 2
>  end
> end
>
> d = Dog.new
> return_val = (d.secret_code=(3) )
> puts return_val    #should this reveal the secret code?
>

Yes. What would you like it to return? The point is, you're doing
d.secret_code = 3 -- you're saying the secret code *is* 3, so actually
setting it to something else is a bit misleading, don't you think?

class Dog
  def generate_secret_code(seed)
    @secret_code = seed * 10 + 2
    self
  end
end

This has the fun of allowing method chaining;
d = Dog.new
d.generate_secret_code(3).some_other_method_that_chains.yet_another(some,
args)

Arlen

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