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|
-- |
-- Copyright : (c) Sam T. 2013
-- License : MIT
-- Maintainer : pxqr.sta@gmail.com
-- Stability : experimental
-- Portability : portable
--
-- This module provides message scheme validation for core protocol
-- messages from 'Remote.KRPC.Procotol'. This module should be used
-- with 'Remote.KRPC.Protocol', otherwise (if you use 'Remote.KRPC')
-- this module seems to be useless.
--
{-# LANGUAGE DefaultSignatures #-}
{-# LANGUAGE TypeSynonymInstances #-}
{-# LANGUAGE MultiParamTypeClasses, FunctionalDependencies #-}
module Remote.KRPC.Scheme
( KMessage(..)
, KQueryScheme(..)
, KResponseScheme(..)
) where
import Data.Map as M
import Data.Set
import Remote.KRPC.Protocol
-- | Used to validate any message by its scheme
--
-- forall m. m `validate` scheme m
--
class KMessage message scheme | message -> scheme where
-- | Get a message scheme.
scheme :: message -> scheme
-- | Check a message with a scheme.
validate :: message -> scheme -> Bool
default validate :: Eq scheme => message -> scheme -> Bool
validate = (==) . scheme
{-# INLINE validate #-}
instance KMessage KError ErrorCode where
{-# SPECIALIZE instance KMessage KError ErrorCode #-}
scheme = errorCode
{-# INLINE scheme #-}
data KQueryScheme = KQueryScheme {
qscMethod :: MethodName
, qscParams :: Set ParamName
} deriving (Show, Read, Eq, Ord)
instance KMessage KQuery KQueryScheme where
{-# SPECIALIZE instance KMessage KQuery KQueryScheme #-}
scheme q = KQueryScheme (queryMethod q) (M.keysSet (queryArgs q))
{-# INLINE scheme #-}
newtype KResponseScheme = KResponseScheme {
rscVals :: Set ValName
} deriving (Show, Read, Eq, Ord)
instance KMessage KResponse KResponseScheme where
{-# SPECIALIZE instance KMessage KResponse KResponseScheme #-}
scheme = KResponseScheme . keysSet . respVals
{-# INLINE scheme #-}
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