mtl-2.2.2: Monad classes, using functional dependencies
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 Haskell2010

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 Source #

Instances

Instances details
MonadRWS r w s m => MonadRWS r w s ( MaybeT m) Source #
Instance details

Defined in Control.Monad.RWS.Class

MonadRWS r w s m => MonadRWS r w s ( IdentityT m) Source #
Instance details

Defined in Control.Monad.RWS.Class

( Error e, MonadRWS r w s m) => MonadRWS r w s ( ErrorT e m) Source #
Instance details

Defined in Control.Monad.RWS.Class

MonadRWS r w s m => MonadRWS r w s ( ExceptT e m) Source #

Since: 2.2

Instance details

Defined in Control.Monad.RWS.Class

( Monoid w, Monad m) => MonadRWS r w s ( RWST r w s m) Source #
Instance details

Defined in Control.Monad.RWS.Class

( Monoid w, Monad m) => MonadRWS r w s ( RWST r w s m) Source #
Instance details

Defined in Control.Monad.RWS.Class