| Copyright | (c) Andy Gill 2001 (c) Oregon Graduate Institute of Science and Technology 2001 |
|---|---|
| License | BSD-style (see the file LICENSE) |
| Maintainer | libraries@haskell.org |
| Stability | experimental |
| Portability | non-portable (multi-param classes, functional dependencies) |
| Safe Haskell | Safe |
| Language | Haskell98 |
Control.Monad.RWS.Class
Description
Declaration of the MonadRWS class.
Inspired by the paper Functional Programming with Overloading and Higher-Order Polymorphism, Mark P Jones (http://web.cecs.pdx.edu/~mpj/) Advanced School of Functional Programming, 1995.
Documentation
class (Monoid w, MonadReader r m, MonadWriter w m, MonadState s m) => MonadRWS r w s m | m -> r, m -> w, m -> s #
Instances
| MonadRWS r w s m => MonadRWS r w s (MaybeT m) # | |
| MonadRWS r w s m => MonadRWS r w s (IdentityT * m) # | |
| (Error e, MonadRWS r w s m) => MonadRWS r w s (ErrorT e m) # | |
| MonadRWS r w s m => MonadRWS r w s (ExceptT e m) # | |
| (Monoid w, Monad m) => MonadRWS r w s (RWST r w s m) # | |
| (Monoid w, Monad m) => MonadRWS r w s (RWST r w s m) # | |
module Control.Monad.Reader.Class
module Control.Monad.State.Class
module Control.Monad.Writer.Class