On 2004-10-29 at 00:03BST Ben Rudiak-Gould wrote:
Jon Fairbairn wrote:
In ghci you get:
[1*** Exception: <<loop>>
which is better.
Not much better, though: in my experience this particular exception leaves ghci in a very peculiar state, and it's usually necessary to quit and restart it before it will work again.
I don't think I've seen such a problem (maybe I so rarely make that type of mistake?;-). What version? What are the symptoms of this not working of which you speak? It seems OK in ghci 6.2.1
Is it coincidence that both Hugs and GHCi have trouble handling dependency loops, or is it a very difficult problem that both have given up on solving?
It's not difficult per se, but it may be difficult to do without performance implications, and compiler hackers are always terribly protective of their performance... Jón -- Jón Fairbairn Jon.Fairbairn@cl.cam.ac.uk