From: Michael Fellinger <m.fellinger@...>
Date: 2006-07-24T12:11:48+09:00
Subject: Re: short cut to do a inspect method for object

On Monday 24 July 2006 07:00, junkone@rogers.com wrote:
> I have a object with following instance variables
> def initialize(symb)
>       #puts symb
>       @symbol=symb
>
> @name=@exchange=@news=@summary=@sector=@industry=@category=@markedBad=""
>     end
>
> Is there a quick way to override the inpect method to return the
> instance variable name and values in a array?

class A
� def initialize
� � @a=:aa
� � @b=:bb
� � @c=:cc
� end
end
A.new.inspect
# "#<A:0xb7c197a4 @c=:cc, @a=:aa, @b=:bb>"


class A
� def inspect
� � instance_variables.map{ |iv| [ iv, eval(iv).inspect ] }
� � # yes, i'm ev(a|i)l here... use instance_variable_get instead - it's just 
� � # too long for this line :|
� end
end

A.new.inspect
# [["@c", :cc], ["@a", :aa], ["@b", :bb]]


class A
� def inspect
� � instance_variables.map do |iv|
� � � "#{iv}=#{instance_variable_get(iv).inspect}"
� � end .join(', ')
� end
end

A.new.inspect
# "@c=:cc, @a=:aa, @b=:bb"