Copyright	(c) Taku Terao 2017
License	BSD3
Maintainer	autotaker@gmail.com
Stability	experimental
Portability	GHC
Safe Haskell	None
Language	Haskell2010

Control.Monad.CTrace

Description

Contextual tracing monad, mtl-compatible.

Synopsis

Documentation

class Monad m => MonadTrace c m | m -> c where Source #

contextual tracing monad

Minimal complete definition

update, zoom'

Methods

update :: (c -> c) -> m () Source #

Apply the specified function to the tracing context

zoom' :: ASetter' c c -> m a -> m a Source #

monomorphic version of zoom operation

Instances

MonadTrace c m => MonadTrace c (MaybeT m) Source #
Methods update :: (c -> c) -> MaybeT m () Source # zoom' :: ASetter' c c -> MaybeT m a -> MaybeT m a Source #
MonadTrace c m => MonadTrace c (ListT m) Source #
Methods update :: (c -> c) -> ListT m () Source # zoom' :: ASetter' c c -> ListT m a -> ListT m a Source #
MonadTrace c m => MonadTrace c (StateT s m) Source #
Methods update :: (c -> c) -> StateT s m () Source # zoom' :: ASetter' c c -> StateT s m a -> StateT s m a Source #
MonadTrace c m => MonadTrace c (StateT s m) Source #
Methods update :: (c -> c) -> StateT s m () Source # zoom' :: ASetter' c c -> StateT s m a -> StateT s m a Source #
MonadTrace c m => MonadTrace c (IdentityT * m) Source #
Methods update :: (c -> c) -> IdentityT * m () Source # zoom' :: ASetter' c c -> IdentityT * m a -> IdentityT * m a Source #
MonadTrace c m => MonadTrace c (ExceptT e m) Source #
Methods update :: (c -> c) -> ExceptT e m () Source # zoom' :: ASetter' c c -> ExceptT e m a -> ExceptT e m a Source #
(Monoid w, MonadTrace c m) => MonadTrace c (WriterT w m) Source #
Methods update :: (c -> c) -> WriterT w m () Source # zoom' :: ASetter' c c -> WriterT w m a -> WriterT w m a Source #
(Monoid w, MonadTrace c m) => MonadTrace c (WriterT w m) Source #
Methods update :: (c -> c) -> WriterT w m () Source # zoom' :: ASetter' c c -> WriterT w m a -> WriterT w m a Source #
MonadIO m => MonadTrace c (TracerT c m) Source #
Methods update :: (c -> c) -> TracerT c m () Source # zoom' :: ASetter' c c -> TracerT c m a -> TracerT c m a Source #
MonadTrace c m => MonadTrace c (ContT * r m) Source #
Methods update :: (c -> c) -> ContT * r m () Source # zoom' :: ASetter' c c -> ContT * r m a -> ContT * r m a Source #
MonadTrace c m => MonadTrace c (ReaderT * r m) Source #
Methods update :: (c -> c) -> ReaderT * r m () Source # zoom' :: ASetter' c c -> ReaderT * r m a -> ReaderT * r m a Source #
(Monoid w, MonadTrace c m) => MonadTrace c (RWST r w s m) Source #
Methods update :: (c -> c) -> RWST r w s m () Source # zoom' :: ASetter' c c -> RWST r w s m a -> RWST r w s m a Source #
(Monoid w, MonadTrace c m) => MonadTrace c (RWST r w s m) Source #
Methods update :: (c -> c) -> RWST r w s m () Source # zoom' :: ASetter' c c -> RWST r w s m a -> RWST r w s m a Source #

data TracerT c m a Source #

Contextual tracing monad transformer type. Tracing context c can be modified through this monad.

Instances

MonadRWS r w s m => MonadRWS r w s (TracerT c m) Source #

MonadWriter w m => MonadWriter w (TracerT c m) Source #
Methods writer :: (a, w) -> TracerT c m a # tell :: w -> TracerT c m () # listen :: TracerT c m a -> TracerT c m (a, w) # pass :: TracerT c m (a, w -> w) -> TracerT c m a #
MonadState s m => MonadState s (TracerT c m) Source #
Methods get :: TracerT c m s # put :: s -> TracerT c m () # state :: (s -> (a, s)) -> TracerT c m a #
MonadReader r m => MonadReader r (TracerT c m) Source #
Methods ask :: TracerT c m r # local :: (r -> r) -> TracerT c m a -> TracerT c m a # reader :: (r -> a) -> TracerT c m a #
MonadError e m => MonadError e (TracerT c m) Source #
Methods throwError :: e -> TracerT c m a # catchError :: TracerT c m a -> (e -> TracerT c m a) -> TracerT c m a #
MonadIO m => MonadTrace c (TracerT c m) Source #
Methods update :: (c -> c) -> TracerT c m () Source # zoom' :: ASetter' c c -> TracerT c m a -> TracerT c m a Source #
MonadTrans (TracerT c) Source #
Methods lift :: Monad m => m a -> TracerT c m a #
Monad m => Monad (TracerT c m) Source #
Methods (>>=) :: TracerT c m a -> (a -> TracerT c m b) -> TracerT c m b # (>>) :: TracerT c m a -> TracerT c m b -> TracerT c m b # return :: a -> TracerT c m a # fail :: String -> TracerT c m a #
Functor m => Functor (TracerT c m) Source #
Methods fmap :: (a -> b) -> TracerT c m a -> TracerT c m b # (<$) :: a -> TracerT c m b -> TracerT c m a #
MonadFix m => MonadFix (TracerT c m) Source #
Methods mfix :: (a -> TracerT c m a) -> TracerT c m a #
Applicative m => Applicative (TracerT c m) Source #
Methods pure :: a -> TracerT c m a # (<>) :: TracerT c m (a -> b) -> TracerT c m a -> TracerT c m b # liftA2 :: (a -> b -> c) -> TracerT c m a -> TracerT c m b -> TracerT c m c # (>) :: TracerT c m a -> TracerT c m b -> TracerT c m b # (<*) :: TracerT c m a -> TracerT c m b -> TracerT c m a #
MonadIO m => MonadIO (TracerT c m) Source #
Methods liftIO :: IO a -> TracerT c m a #
MonadCont m => MonadCont (TracerT c m) Source #
Methods callCC :: ((a -> TracerT c m b) -> TracerT c m a) -> TracerT c m a #

zoom :: ASetter' c c' -> TracerT c' m a -> TracerT c m a Source #

Change the tracing context.

mapTracerT :: (m a -> n b) -> TracerT c m a -> TracerT c n b Source #

Transform the base monad

runTracerT :: ((c -> c) -> IO ()) -> TracerT c m a -> m a Source #

Run the tracer monad with the specified update action.

noTracerT :: Monad m => TracerT c m a -> m a Source #

Run the tracer monad without tracing.

ioTracerT :: MonadIO m => c -> TracerT c m a -> m (a, c) Source #

Run the tracer monad with update action implemented by IORef