| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
Control.Monad.Trans.Trace
Documentation
A concrete monad transformer TraceT t e mt is the type of
tags/breadcrumbs, e is the type of errors, and m is the underlying monad.
Instances
| MonadBase b m => MonadBase b (TraceT t e m) | |
| MonadBaseControl b m => MonadBaseControl b (TraceT t e m) | |
| Monad m => MonadError e (TraceT t e m) | |
| Monad m => MonadTrace t (TraceT t e m) | |
| MonadTrans (TraceT t e) | |
| MonadTransControl (TraceT t e) | |
| (Monad m, Monoid e) => Alternative (TraceT t e m) | |
| Monad m => Monad (TraceT t e m) | |
| Monad m => Functor (TraceT t e m) | |
| Monad m => Applicative (TraceT t e m) | |
| MonadIO m => MonadIO (TraceT t e m) | |
| type StT (TraceT t e) α = StT (ReaderT (Seq t)) (StT (EitherT (ErrorTrace t e)) α) | |
| type StM (TraceT t e m) α = ComposeSt (TraceT t e) m α |
runTraceT :: (Functor m, Monad m) => TraceT t e m α -> m (Either (ErrorTrace t e) α) Source
Run a traced traced computation to get either its result, or an error and
its provenience (ErrorTrace).