----------------------------------------------------------------------------- -- | -- Module : Control.Monad.Writer.Lazy -- 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) -- -- Lazy writer monads. -- -- Inspired by the paper -- /Functional Programming with Overloading and Higher-Order Polymorphism/, -- Mark P Jones (<http://web.cecs.pdx.edu/~mpj/pubs/springschool.html>) -- Advanced School of Functional Programming, 1995. ----------------------------------------------------------------------------- module Control.Monad.Writer.Lazy ( -- * MonadWriter class MonadWriter(..), listens, censor, -- * The Writer monad Writer, runWriter, execWriter, mapWriter, -- * The WriterT monad transformer WriterT(WriterT), runWriterT, execWriterT, mapWriterT, module Control.Monad, module Control.Monad.Fix, module Control.Monad.Trans, module Data.Monoid, ) where import Control.Monad.Writer.Class import Control.Monad.Trans import Control.Monad.Trans.Writer.Lazy ( Writer, runWriter, execWriter, mapWriter, WriterT(WriterT), runWriterT, execWriterT, mapWriterT) import Control.Monad import Control.Monad.Fix import Data.Monoid