In language tooling

[Charles via Digitalmars-d-learn]

Watched a video on Jonathan Blow's language that he's developing, 
and he has a pretty neat idea of having tools being part of the 
language. Looking at the first 15 
minutes(https://www.youtube.com/watch?v=OHZwYYW9koI) or so of the 
video, is this something that could be accomplished in D with 
CTFE?

I think he makes a decent case for whether or not it'd be useful.