mtl-1.1.1.0: Monad transformer library

Portability | non-portable (multi-param classes, functional dependencies)
Stability | experimental
Maintainer | libraries@haskell.org

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

(Error e, MonadRWS r w s m) => MonadRWS r w s (ErrorT e m) |
Monoid w => MonadRWS r w s (RWS r w s) |
Monoid w => MonadRWS r w s (RWS r w s) |
(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