From: Robert Klemme <shortcutter@...>
Date: 2011-05-19T15:35:32+09:00
Subject: Re: Generating Functions in Ruby

On 19.05.2011 03:55, 7stud -- wrote:
> Robert K. wrote in post #999483:
>>
>> def SUM_TEMPLATE(name, x, y)
>>    class<<self;self;end.class_eval "def #{name}; #{x} + #{y}; end"
>> end
>>
>
> I'm curious how you expected the op to use that method?

I am not sure I get your point.  The method was intended to be used as a 
top level method similarly to how he formulated his C macro sample.

$ ruby19 <<CODE
 > def SUM_TEMPLATE(name, x, y)
 >   class <<self;self;end.class_eval "def #{name}; #{x} + #{y}; end"
 > end
 > SUM_TEMPLATE("f",1,2)
 > p f
 > CODE
3

But, frankly, this use case seems to be so far away from his real use 
case that this approach is likely not what is needed.  Since I have no 
further information I stick with the example and leave speculation about 
the nature of the real issue aside.

Kind regards

	robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/