Andrew Godfrey:
1) A function annotation that means "I will call myself
recursively, and when I do, I expect the tail recursion
optimization." I have seen code which allocates something big
on
the stack and depends on the optimization. So this intent
should
be expressible.
A @tailrec annotation seems good, and will improve the
functional usages of D. It should stop compilation with a error
if the function doesn't call itself or if the compiler is not
able to remove the recursive call. This means it has to be
fully enforced.
Perhaps a @cps (or @continuation) annotation is better and more
general.
Bye,
bearophile
