[Haskell-cafe] monadic debugging

[pepe]

On 16/04/2008, at 0:53, Galchin, Vasili wrote:

> Hello,
>
>      I have an Linux executable of my Haskell library and test case.  
> I see there are several debuggers, e.g. Buddha, Hat, etc. Which  
> debugger is currently preferred for monadic (imperative) code? Thanks.
>
> Vasili


For debugging IO code, I have used the GHCi debugger with great  
success in several occasions.
Particularly, :steplocal is very useful in monadic code.
Make sure you read at least the documentation in GHC docs, and the  
tutorial recently published in The Monad Reader.
The latest version of the debugger in HEAD is extended to print the  
contents of IORefs automatically, which you may find useful too.

Cheers,
pepe