-{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE FlexibleInstances #-}
+{-# LANGUAGE ScopedTypeVariables #-}
+{-# LANGUAGE RankNTypes #-}
module Language.Haskell.LSP.Test.Parsing where
import Control.Applicative
+import Control.Concurrent.Chan
+import Control.Concurrent.MVar
import Control.Monad.Trans.Class
import Control.Monad.IO.Class
import Control.Monad.Trans.Reader
import Control.Monad.Trans.State
+import Data.Aeson
+import qualified Data.ByteString.Lazy.Char8 as B
+import Data.Conduit hiding (await)
+import Data.Conduit.Parser
+import Data.Maybe
import Language.Haskell.LSP.Messages
import Language.Haskell.LSP.Types
-import Language.Haskell.LSP.Test.Messages
+import Language.Haskell.LSP.Test.Compat
import Language.Haskell.LSP.Test.Decoding
+import Language.Haskell.LSP.Test.Messages
import System.IO
-import Control.Concurrent.Chan
-import Control.Concurrent.MVar
-import Data.Conduit hiding (await)
-import Data.Conduit.Parser
-
-data MessageParserState = MessageParserState
data SessionContext = SessionContext
{
}
type ParserStateReader a s r m = ConduitParser a (StateT s (ReaderT r m))
+
-- | A session representing one instance of launching and connecting to a server.
--
-- You can send and receive messages to the server within 'Session' via 'getMessage',
type Session = ParserStateReader FromServerMessage SessionState SessionContext IO
-- | Matches if the message is a notification.
-notification :: Session FromServerMessage
-notification = satisfy isServerNotification
+anyNotification :: Monad m => ConduitParser FromServerMessage m FromServerMessage
+anyNotification = satisfy isServerNotification
+
+notification :: forall m a. (Monad m, FromJSON a) => ConduitParser FromServerMessage m (NotificationMessage ServerMethod a)
+notification = do
+ let parser = decode . encodeMsg :: FromServerMessage -> Maybe (NotificationMessage ServerMethod a)
+ x <- satisfy (isJust . parser)
+ return $ fromJust $ decode $ encodeMsg x
-- | Matches if the message is a request.
-request :: Session FromServerMessage
-request = satisfy isServerRequest
+anyRequest :: Monad m => ConduitParser FromServerMessage m FromServerMessage
+anyRequest = satisfy isServerRequest
+
+request :: forall m a b. (Monad m, FromJSON a, FromJSON b) => ConduitParser FromServerMessage m (RequestMessage ServerMethod a b)
+request = do
+ let parser = decode . encodeMsg :: FromServerMessage -> Maybe (RequestMessage ServerMethod a b)
+ x <- satisfy (isJust . parser)
+ return $ fromJust $ decode $ encodeMsg x
-- | Matches if the message is a response.
-response :: Session FromServerMessage
-response = satisfy isServerResponse
+anyResponse :: Monad m => ConduitParser FromServerMessage m FromServerMessage
+anyResponse = satisfy isServerResponse
+
+response :: forall m a. (Monad m, FromJSON a) => ConduitParser FromServerMessage m (ResponseMessage a)
+response = do
+ let parser = decode . encodeMsg :: FromServerMessage -> Maybe (ResponseMessage a)
+ x <- satisfy (isJust . parser)
+ return $ fromJust $ decode $ encodeMsg x
+
+-- | A version of encode that encodes FromServerMessages as if they
+-- weren't wrapped.
+encodeMsg :: FromServerMessage -> B.ByteString
+encodeMsg = encode . genericToJSON (defaultOptions { sumEncoding = UntaggedValue })
-- | Matches if the message is a log message notification or a show message notification/request.
-loggingNotification :: Session FromServerMessage
+loggingNotification :: Monad m => ConduitParser FromServerMessage m FromServerMessage
loggingNotification = satisfy shouldSkip
where
shouldSkip (NotLogMessage _) = True
shouldSkip (ReqShowMessage _) = True
shouldSkip _ = False
+publishDiagnosticsNotification :: Monad m => ConduitParser FromServerMessage m PublishDiagnosticsNotification
+publishDiagnosticsNotification = do
+ NotPublishDiagnostics diags <- satisfy test
+ return diags
+ where test (NotPublishDiagnostics _) = True
+ test _ = False
+
satisfy :: Monad m => (a -> Bool) -> ConduitParser a m a
satisfy pred = do
x <- await
then return x
else empty
-chanSource:: MonadIO m => Chan o -> ConduitT i o m b
-chanSource c = do
- x <- liftIO $ readChan c
- yield x
- chanSource c
-
runSession' :: Chan FromServerMessage -> SessionContext -> SessionState -> Session a -> IO (a, SessionState)
runSession' chan context state session = runReaderT (runStateT conduit state) context
where conduit = runConduit $ chanSource chan .| runConduitParser session