From: Filipe <filipedlarcanjo@...>
Date: 2007-11-26T07:40:04+09:00
Subject: Re: Class variable as parameter

On Nov 25, 11:50 am, Matt Todd <chiol...@gmail.com> wrote:
> > >> On Nov 23, 2007, at 4:20 PM,Filipewrote:
> > >>> I have the following situation:
> > >>> class MyClass
> > >>>    def setVar(var,varValue)
> > >>>       var=varValue
> > >>>    end
> > >>>    def initialize
> > >>>        @myVar=0
> > >>>        setVar(@myVar,1)
> > >>>        puts(@myVar.to_s)
> > >>>    end
> > >>> end
> > >>> test = MyClass.new
> > >>> Unfortunately, this piece of code is returning 0 instead of the 1 I
> > >>> would expect. Is there anything I could do?
>
> The most stylish, Ruby way to do what you are trying to do is as follows:
>
> class MyClass
>
>   def initialize
>     @myVar1 = 0 # direct value manipulation
>     self.myVar1 = 1 # sent through your wrapper
>     puts @myVar1
>   end
>
>   def myVar1=(value)
>     @myVar1 = value
>     # process extra steps here
>   end
>
> end
>
> (Ehm, I should admit, there may be a better way to actually get the
> accessor method to fire inside of initialize than self.myVar1, but
> that's what I found to work.)

I would still have to writer a myVar=(value) method for every single
variable. That's what I'm trying to get rid of.