> Is the feature described in the paper just a
> proposal or is there a switch somethere to enable
> it?
I think you used the wrong compiler. It's called Hugs :-)
Prelude> #a ( a='a', b=True )
ERROR - Trex.insertField not in scope
*** Possible cause: "Trex" module not imported
Prelude> :l Trex
I feel like I have way too much code of the form:
changeGpart (C a b c d e f g h i) g' =
C a b c d e f g' h i
So, I got excited reading Simon and Mark's
"Lightweight Extensible Records For Haskell" paper
as a way to get rid of this cruft. I immediately
started GHCi, typed {a="Hello wo
