On 02 September 2004 17:31, MR K P SCHUPKE wrote:

When writing code in the compiler, how do you use pprTrace?

I want to print out the type of a "SigD" from HsDecl?

There are plenty of examples to be found in the compiler, but briefly you'd use it something like this: myFunction sigd = pprTrace "myFunction" (ppr sigd) $ ... Cheers, Simon