| Safe Haskell | None |
|---|---|
| Language | Haskell98 |
Data.Conduit.Lift
Description
Allow monad transformers to be run/eval/exec in a section of conduit rather then needing to run across the whole conduit. The circumvents many of the problems with breaking the monad transformer laws. For more information, see the announcement blog post: http://www.yesodweb.com/blog/2014/01/conduit-transformer-exception
This module was added in conduit 1.0.11.
Synopsis
- exceptC :: Monad m => ConduitT i o m (Either e a) -> ConduitT i o (ExceptT e m) a
- runExceptC :: Monad m => ConduitT i o (ExceptT e m) r -> ConduitT i o m (Either e r)
- catchExceptC :: Monad m => ConduitT i o (ExceptT e m) r -> (e -> ConduitT i o (ExceptT e m) r) -> ConduitT i o (ExceptT e m) r
- runCatchC :: Monad m => ConduitT i o (CatchT m) r -> ConduitT i o m (Either SomeException r)
- catchCatchC :: Monad m => ConduitT i o (CatchT m) r -> (SomeException -> ConduitT i o (CatchT m) r) -> ConduitT i o (CatchT m) r
- maybeC :: Monad m => ConduitT i o m (Maybe a) -> ConduitT i o (MaybeT m) a
- runMaybeC :: Monad m => ConduitT i o (MaybeT m) r -> ConduitT i o m (Maybe r)
- readerC :: Monad m => (r -> ConduitT i o m a) -> ConduitT i o (ReaderT r m) a
- runReaderC :: Monad m => r -> ConduitT i o (ReaderT r m) res -> ConduitT i o m res
- stateLC :: Monad m => (s -> ConduitT i o m (a, s)) -> ConduitT i o (StateT s m) a
- runStateLC :: Monad m => s -> ConduitT i o (StateT s m) r -> ConduitT i o m (r, s)
- evalStateLC :: Monad m => s -> ConduitT i o (StateT s m) r -> ConduitT i o m r
- execStateLC :: Monad m => s -> ConduitT i o (StateT s m) r -> ConduitT i o m s
- stateC :: Monad m => (s -> ConduitT i o m (a, s)) -> ConduitT i o (StateT s m) a
- runStateC :: Monad m => s -> ConduitT i o (StateT s m) r -> ConduitT i o m (r, s)
- evalStateC :: Monad m => s -> ConduitT i o (StateT s m) r -> ConduitT i o m r
- execStateC :: Monad m => s -> ConduitT i o (StateT s m) r -> ConduitT i o m s
- writerLC :: (Monad m, Monoid w) => ConduitT i o m (b, w) -> ConduitT i o (WriterT w m) b
- runWriterLC :: (Monad m, Monoid w) => ConduitT i o (WriterT w m) r -> ConduitT i o m (r, w)
- execWriterLC :: (Monad m, Monoid w) => ConduitT i o (WriterT w m) r -> ConduitT i o m w
- writerC :: (Monad m, Monoid w) => ConduitT i o m (b, w) -> ConduitT i o (WriterT w m) b
- runWriterC :: (Monad m, Monoid w) => ConduitT i o (WriterT w m) r -> ConduitT i o m (r, w)
- execWriterC :: (Monad m, Monoid w) => ConduitT i o (WriterT w m) r -> ConduitT i o m w
- rwsLC :: (Monad m, Monoid w) => (r -> s -> ConduitT i o m (a, s, w)) -> ConduitT i o (RWST r w s m) a
- runRWSLC :: (Monad m, Monoid w) => r -> s -> ConduitT i o (RWST r w s m) res -> ConduitT i o m (res, s, w)
- evalRWSLC :: (Monad m, Monoid w) => r -> s -> ConduitT i o (RWST r w s m) res -> ConduitT i o m (res, w)
- execRWSLC :: (Monad m, Monoid w) => r -> s -> ConduitT i o (RWST r w s m) res -> ConduitT i o m (s, w)
- rwsC :: (Monad m, Monoid w) => (r -> s -> ConduitT i o m (a, s, w)) -> ConduitT i o (RWST r w s m) a
- runRWSC :: (Monad m, Monoid w) => r -> s -> ConduitT i o (RWST r w s m) res -> ConduitT i o m (res, s, w)
- evalRWSC :: (Monad m, Monoid w) => r -> s -> ConduitT i o (RWST r w s m) res -> ConduitT i o m (res, w)
- execRWSC :: (Monad m, Monoid w) => r -> s -> ConduitT i o (RWST r w s m) res -> ConduitT i o m (s, w)
ExceptT
exceptC :: Monad m => ConduitT i o m (Either e a) -> ConduitT i o (ExceptT e m) a Source #
Wrap the base monad in ExceptT
Since 1.2.12
runExceptC :: Monad m => ConduitT i o (ExceptT e m) r -> ConduitT i o m (Either e r) Source #
Run ExceptT in the base monad
Since 1.2.12
catchExceptC :: Monad m => ConduitT i o (ExceptT e m) r -> (e -> ConduitT i o (ExceptT e m) r) -> ConduitT i o (ExceptT e m) r Source #
Catch an error in the base monad
Since 1.2.12
CatchC
runCatchC :: Monad m => ConduitT i o (CatchT m) r -> ConduitT i o m (Either SomeException r) Source #
Run CatchT in the base monad
Since 1.1.0
catchCatchC :: Monad m => ConduitT i o (CatchT m) r -> (SomeException -> ConduitT i o (CatchT m) r) -> ConduitT i o (CatchT m) r Source #
Catch an exception in the base monad
Since 1.1.0
MaybeT
maybeC :: Monad m => ConduitT i o m (Maybe a) -> ConduitT i o (MaybeT m) a Source #
Wrap the base monad in MaybeT
Since 1.0.11
runMaybeC :: Monad m => ConduitT i o (MaybeT m) r -> ConduitT i o m (Maybe r) Source #
Run MaybeT in the base monad
Since 1.0.11
ReaderT
readerC :: Monad m => (r -> ConduitT i o m a) -> ConduitT i o (ReaderT r m) a Source #
Wrap the base monad in ReaderT
Since 1.0.11
runReaderC :: Monad m => r -> ConduitT i o (ReaderT r m) res -> ConduitT i o m res Source #
Run ReaderT in the base monad
Since 1.0.11
StateT, lazy
stateLC :: Monad m => (s -> ConduitT i o m (a, s)) -> ConduitT i o (StateT s m) a Source #
Wrap the base monad in StateT
Since 1.0.11
runStateLC :: Monad m => s -> ConduitT i o (StateT s m) r -> ConduitT i o m (r, s) Source #
Run StateT in the base monad
Since 1.0.11
evalStateLC :: Monad m => s -> ConduitT i o (StateT s m) r -> ConduitT i o m r Source #
Evaluate StateT in the base monad
Since 1.0.11
execStateLC :: Monad m => s -> ConduitT i o (StateT s m) r -> ConduitT i o m s Source #
Execute StateT in the base monad
Since 1.0.11
Strict
stateC :: Monad m => (s -> ConduitT i o m (a, s)) -> ConduitT i o (StateT s m) a Source #
Wrap the base monad in StateT
Since 1.0.11
runStateC :: Monad m => s -> ConduitT i o (StateT s m) r -> ConduitT i o m (r, s) Source #
Run StateT in the base monad
Since 1.0.11
evalStateC :: Monad m => s -> ConduitT i o (StateT s m) r -> ConduitT i o m r Source #
Evaluate StateT in the base monad
Since 1.0.11
execStateC :: Monad m => s -> ConduitT i o (StateT s m) r -> ConduitT i o m s Source #
Execute StateT in the base monad
Since 1.0.11
WriterT, lazy
writerLC :: (Monad m, Monoid w) => ConduitT i o m (b, w) -> ConduitT i o (WriterT w m) b Source #
Wrap the base monad in WriterT
Since 1.0.11
runWriterLC :: (Monad m, Monoid w) => ConduitT i o (WriterT w m) r -> ConduitT i o m (r, w) Source #
Run WriterT in the base monad
Since 1.0.11
execWriterLC :: (Monad m, Monoid w) => ConduitT i o (WriterT w m) r -> ConduitT i o m w Source #
Execute WriterT in the base monad
Since 1.0.11
Strict
writerC :: (Monad m, Monoid w) => ConduitT i o m (b, w) -> ConduitT i o (WriterT w m) b Source #
Wrap the base monad in WriterT
Since 1.0.11
runWriterC :: (Monad m, Monoid w) => ConduitT i o (WriterT w m) r -> ConduitT i o m (r, w) Source #
Run WriterT in the base monad
Since 1.0.11
execWriterC :: (Monad m, Monoid w) => ConduitT i o (WriterT w m) r -> ConduitT i o m w Source #
Execute WriterT in the base monad
Since 1.0.11
RWST, lazy
rwsLC :: (Monad m, Monoid w) => (r -> s -> ConduitT i o m (a, s, w)) -> ConduitT i o (RWST r w s m) a Source #
Wrap the base monad in RWST
Since 1.0.11
runRWSLC :: (Monad m, Monoid w) => r -> s -> ConduitT i o (RWST r w s m) res -> ConduitT i o m (res, s, w) Source #
Run RWST in the base monad
Since 1.0.11
evalRWSLC :: (Monad m, Monoid w) => r -> s -> ConduitT i o (RWST r w s m) res -> ConduitT i o m (res, w) Source #
Evaluate RWST in the base monad
Since 1.0.11
execRWSLC :: (Monad m, Monoid w) => r -> s -> ConduitT i o (RWST r w s m) res -> ConduitT i o m (s, w) Source #
Execute RWST in the base monad
Since 1.0.11
Strict
rwsC :: (Monad m, Monoid w) => (r -> s -> ConduitT i o m (a, s, w)) -> ConduitT i o (RWST r w s m) a Source #
Wrap the base monad in RWST
Since 1.0.11
runRWSC :: (Monad m, Monoid w) => r -> s -> ConduitT i o (RWST r w s m) res -> ConduitT i o m (res, s, w) Source #
Run RWST in the base monad
Since 1.0.11