In Feldspar's module for observable sharing [1] I use the following
{-# OPTIONS_GHC -O0 #-}
which I assumed would take care of the steps required for
unsafePerformIO. Could someone please tell if this assumption is correct?
(Of course, observable sharing is not safe regardless, but that's
I use the dreaded unsafePerformIO for a few functions in my graphviz
library (
http://hackage.haskell.org/packages/archive/graphviz/2999.8.0.0/doc/html/src/Data-GraphViz.html
). However, a few months ago someone informed me that the
documentation for unsafePerformIO had some steps that should be
