Re: Do everything in Java…

[Daniel Murphy via Digitalmars-d]

"H. S. Teoh via Digitalmars-d"  wrote in message 
news:mailman.3042.1418240846.9932.digitalmars-d at puremagic.com...

> Also, storing a full AST is probably overkill -- lexing and parsing the
> source generally doesn't take up too much of the compiler's time, so we
> might as well just use the source code instead.

Exactly

> What makes it more
> worthwhile is if the AST has already been somewhat processed, e.g.,
> constants have been folded, etc.. Probably after semantic1 and semantic2
> have been run (though I'm not sure how far one can get if the template
> hasn't been instantiated yet).

Not very far at all.

> This way, work that has already been done
> doesn't need to be repeated again.

When it's templates that haven't been instantiated, you haven't done any of 
the work yet.