From: Greg Willits <lists@...>
Date: 2010-10-31T05:11:32+09:00
Subject: Re: Dynamically reference instance vars

Ryan Davis wrote in post #958245:
> On Oct 30, 2010, at 12:27 , Greg Willits wrote:
>
>> I was hoping in Ruby that at least this was possible:
>>
>>  myobject.send(iname) = ivalue
>>  --or--
>>  myobject.send(iname, ivalue)
>
> You're confusing methods and variables. They're not the same, but you're
> on the right track with the code above, but you'd be calling the getter,
> not the setter. Check it:
>
> class X
>   attr_accessor :x # creates x and x= methods
> end
>
> o = X.new
> o.send("x=", 42)
> p x

I wasn't confusing them, I was hoping Ruby's send would be flexible 
enough to work with both of them (in conjunction with the accessors 
being defined).  What I didn't think of in this context was Ruby's x= 
being considered the setter method and not just x, which I knew, and 
should have recognized -- so yep, that was the ticket. You win! :-) 
Sorry, no prizes :-(

Thanks.

-- gw

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