Try -ddump-deriv

            http://haskell.cs.yale.edu/ghc/docs/latest/html/users_guide/options-debugging.html#DUMPING-OUTPUT

Simon

-----Original Message-----
From: Jong Keun Na [mailto:jongkn@microsoft.com]
Sent: 07 February 2003 06:15
To: haskell-cafe@haskell.org
Subject: Auto generated instance codes through 'deriving'

Hello folks,

Is there any method with which I can see instance’s codes generated automatically by using ‘deriving’ keyword in GHC?

I’m curious in how GHC generates ‘Read’ class’s instance code for user-defined data type.

Any help will be great appreciated.

/JongKeun