{-
Copyright (c) 2010 Alexander Bogdanov <andorn@gmail.com>

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
-}

{-# LANGUAGE TypeSynonymInstances #-}
-- | This module is mainly an example of posible 'WithRedis'
-- implementation
module Database.Redis.Monad.State where

import Control.Monad.State
import Database.Redis.Monad (WithRedis(..), Redis)

-- | Trivial WithRedis instance storing Redis descriptor in StateT
type RedisM = StateT Redis IO

instance WithRedis RedisM where
    getRedis = get
    setRedis = put

runWithRedis :: Redis -> (RedisM a) -> IO a
runWithRedis = flip evalStateT