From: Joel VanderWerf <vjoel@...>
Date: 2006-03-21T04:54:50+09:00
Subject: Re: passing block to another function

Shea Martin wrote:
> I have a function:
> 
> def worker( &p_block )
>     ....
>     p_block.call( my_data )
>     ....
> end
> 
> I have a wrapper function, that I would like to use to call 'worker'.
> But I would like the caller of 'wrapper' to be able to specify the block
> 'wrapper' will use.  i.e.,
> 
> def wrapper( &p_block )
>     ....
>     worker{ p_block }
> end
> 
> I suspect that this is possible, but I can't seem to nail the syntax.

def wrapper
  worker {yield}
end

It makes sense once you "wrap" your head around it ;)

(Also, you might want, if possible, to use yield in worker, as well.
It's more efficient.)

-- 
      vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407