-data MessageParserState = MessageParserState
-
-data SessionContext = SessionContext
- {
- serverIn :: Handle,
- rootDir :: FilePath,
- messageChan :: Chan FromServerMessage,
- requestMap :: MVar RequestMap
- }
-
-newtype SessionState = SessionState
- {
- curReqId :: LspId
- }
-
-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',
--- 'sendRequest' and 'sendNotification'.
---
--- @
--- runSession \"path\/to\/root\/dir\" $ do
--- docItem <- getDocItem "Desktop/simple.hs" "haskell"
--- sendNotification TextDocumentDidOpen (DidOpenTextDocumentParams docItem)
--- diagnostics <- getMessage :: Session PublishDiagnosticsNotification
--- @
-type Session = ParserStateReader FromServerMessage SessionState SessionContext IO
+satisfy :: (FromServerMessage -> Bool) -> Session FromServerMessage
+satisfy pred = do
+
+ skipTimeout <- overridingTimeout <$> get
+ timeoutId <- curTimeoutId <$> get
+ unless skipTimeout $ do
+ chan <- asks messageChan
+ timeout <- asks (messageTimeout . config)
+ void $ liftIO $ forkIO $ do
+ threadDelay (timeout * 1000000)
+ writeChan chan (TimeoutMessage timeoutId)
+
+ x <- await
+
+ unless skipTimeout $
+ modify $ \s -> s { curTimeoutId = timeoutId + 1 }
+
+ modify $ \s -> s { lastReceivedMessage = Just x }
+
+ if pred x
+ then do
+ shouldLog <- asks $ logMessages . config
+ liftIO $ when shouldLog $ do
+ setSGR [SetColor Foreground Dull Magenta]
+ putStrLn $ "<-- " ++ B.unpack (encodeMsgPretty x)
+ setSGR [Reset]
+ return x
+ else empty
+
+-- | Matches a message of type 'a'.
+message :: forall a. (Typeable a, FromJSON a) => Session a
+message =
+ let parser = decode . encodeMsg :: FromServerMessage -> Maybe a
+ in named (T.pack $ show $ head $ snd $ splitTyConApp $ last $ typeRepArgs $ typeOf parser) $
+ castMsg <$> satisfy (isJust . parser)