| Portability | portable |
|---|---|
| Stability | stable |
| Maintainer | dimitri.sabadie@gmail.com |
| Safe Haskell | None |
Control.Monad.Trans.Journal
Contents
Description
- data JournalT w m a
- runJournalT :: (Monoid w, Monad m) => JournalT w m a -> m (a, w)
- module Control.Monad.Journal.Class
JournalT monad transformer
Instances
| MonadBase b m => MonadBase b (JournalT w m) | |
| (Monoid w, MonadBaseControl b m) => MonadBaseControl b (JournalT w m) | |
| MonadReader r m => MonadReader r (JournalT w m) | |
| MonadState s m => MonadState s (JournalT w m) | |
| MonadWriter w' m => MonadWriter w' (JournalT w m) | |
| (Monoid w, Monad m) => MonadJournal w (JournalT w m) | |
| MonadTrans (JournalT w) | |
| Monoid w => MonadTransControl (JournalT w) | |
| Monad m => Monad (JournalT w m) | |
| Functor m => Functor (JournalT w m) | |
| MonadPlus m => MonadPlus (JournalT w m) | |
| (Monad m, Functor m) => Applicative (JournalT w m) | |
| (Functor m, MonadPlus m) => Alternative (JournalT w m) | |
| MonadIO m => MonadIO (JournalT w m) |
runJournalT :: (Monoid w, Monad m) => JournalT w m a -> m (a, w)Source
module Control.Monad.Journal.Class