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module Main where
import Data.Char
{-# NOINLINE f #-}
f :: Int -> String
f x = "NOT FIRED"
{-# NOINLINE neg #-}
neg :: Int -> Int
neg = negate
{-# NOINLINE myord #-}
myord :: Char -> Int
myord = ord
{-# RULES
"f" forall (c::Char->Int) (x::Char). f (c x) = "RULE FIRED"
#-}
main = do { print (f (myord 'a')) -- Rule should fire
; print (f (neg 1)) } -- Rule should not fire
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