summaryrefslogtreecommitdiff
path: root/src/tools/c/GFCC/ComposOp.hs
diff options
context:
space:
mode:
authoraarne <aarne@cs.chalmers.se>2008-06-25 16:43:48 +0000
committeraarne <aarne@cs.chalmers.se>2008-06-25 16:43:48 +0000
commitb96b36f43de3e2f8b58d5f539daa6f6d47f25870 (patch)
tree0992334be13cec6538a1dea22fbbf26ad6bdf224 /src/tools/c/GFCC/ComposOp.hs
parentfe367412e0aeb4ad5c02de68e6eca382e0f96984 (diff)
removed src for 2.9
Diffstat (limited to 'src/tools/c/GFCC/ComposOp.hs')
-rw-r--r--src/tools/c/GFCC/ComposOp.hs30
1 files changed, 0 insertions, 30 deletions
diff --git a/src/tools/c/GFCC/ComposOp.hs b/src/tools/c/GFCC/ComposOp.hs
deleted file mode 100644
index 401c1d778..000000000
--- a/src/tools/c/GFCC/ComposOp.hs
+++ /dev/null
@@ -1,30 +0,0 @@
-{-# OPTIONS_GHC -fglasgow-exts #-}
-module GFCC.ComposOp (Compos(..),composOp,composOpM,composOpM_,composOpMonoid,
- composOpMPlus,composOpFold) where
-
-import Control.Monad.Identity
-import Data.Monoid
-
-class Compos t where
- compos :: (forall a. a -> m a) -> (forall a b. m (a -> b) -> m a -> m b)
- -> (forall a. t a -> m (t a)) -> t c -> m (t c)
-
-composOp :: Compos t => (forall a. t a -> t a) -> t c -> t c
-composOp f = runIdentity . composOpM (Identity . f)
-
-composOpM :: (Compos t, Monad m) => (forall a. t a -> m (t a)) -> t c -> m (t c)
-composOpM = compos return ap
-
-composOpM_ :: (Compos t, Monad m) => (forall a. t a -> m ()) -> t c -> m ()
-composOpM_ = composOpFold (return ()) (>>)
-
-composOpMonoid :: (Compos t, Monoid m) => (forall a. t a -> m) -> t c -> m
-composOpMonoid = composOpFold mempty mappend
-
-composOpMPlus :: (Compos t, MonadPlus m) => (forall a. t a -> m b) -> t c -> m b
-composOpMPlus = composOpFold mzero mplus
-
-composOpFold :: Compos t => b -> (b -> b -> b) -> (forall a. t a -> b) -> t c -> b
-composOpFold z c f = unC . compos (\_ -> C z) (\(C x) (C y) -> C (c x y)) (C . f)
-
-newtype C b a = C { unC :: b }