diff options
Diffstat (limited to 'testsuite/tests/ghc-regress/simplCore/should_compile/simpl005.hs')
-rw-r--r-- | testsuite/tests/ghc-regress/simplCore/should_compile/simpl005.hs | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/testsuite/tests/ghc-regress/simplCore/should_compile/simpl005.hs b/testsuite/tests/ghc-regress/simplCore/should_compile/simpl005.hs deleted file mode 100644 index abf98a30d2..0000000000 --- a/testsuite/tests/ghc-regress/simplCore/should_compile/simpl005.hs +++ /dev/null @@ -1,25 +0,0 @@ --- !!! CPR on newtype with polymorphic argument - -{-# OPTIONS -O #-} - -module ShouldCompile where - -data StateM m s a = STM (s -> m (a,s)) - -instance Functor m => Functor (StateM m s) where - fmap f (STM xs) = STM (\s -> fmap (\ (x,s') -> (f x, s')) - (xs s) - ) -{- With GHC 4.04 (first release) this program gave: - - panic! (the `impossible' happened): - mk_cpr_let: not a product - forall a{-ruq-} b{-rur-}. - (a{-ruq-} -> b{-rur-}) - -> MonadLibrary.StateM{-r2o,x-} m{-a30Y-} s{-a30Z-} a{-ruq-} - -> MonadLibrary.StateM{-r2o,x-} m{-a30Y-} s{-a30Z-} b{-rur-} - - The reason: 'Functor' is a newtype, whose element is a for-all type. - - newtype Functor f = Functor (forall a,b. (a->b) -> f a -> f b) --} |