Yield from function?

[Ali Çehreli via Digitalmars-d-learn]

On 01/30/2017 03:03 AM, Profile Anaysis wrote:
 > I need to yield from a complex recursive function too allow visualizing
 > what it is doing.
 >
 > e.g., if it is a tree searching algorithm, I'd like to yield for each
 > node so that the current state can be shown visually.

I used tree iteration as a Generator example here:

   http://ddili.org/ders/d.en/fibers.html

It's in the code where the function 'byNode' appears. (The example 
builds on an earlier tree iteration code in the same chapter.)

Ali