From: Andrew Mitchell <amitchell@...>
Date: 2008-05-23T17:39:51+09:00
Subject: Re: Why can't I define vars in caller's binding using eval?

Christopher J. Bottaro wrote:
> In other words, why can't I do this?
> 
> def f(b)
>   eval("x = 10", b)
> end
> 
> f(binding)
> puts "x = #{x}"
> 
> Is there any way to make that code work (besides obviously setting x
> to something before calling f).
> 
> Thanks.

Worked for me.

Dios:~ andrewmitchell$ irb
>> def f(b)
>>  eval("x=10", b)
>> end
=> nil
>> f(binding)
=> 10
>> puts "x = #{x}"
x = 10
=> nil
>> 
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