Fix embarassing error with publishDiagnosticsNotification

[lsp-test.git] / src / Language / Haskell / LSP / Test / Parsing.hs

diff --git a/src/Language/Haskell/LSP/Test/Parsing.hs b/src/Language/Haskell/LSP/Test/Parsing.hs
index de2ca860e65622c014ee0a85a8ecae9e8c2a1185..fdd01c2a047b7d620ee606334ae96c9805a01ee3 100644 (file)
--- a/src/Language/Haskell/LSP/Test/Parsing.hs
+++ b/src/Language/Haskell/LSP/Test/Parsing.hs
@@ -1,32 +1,103 @@
-{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE MultiParamTypeClasses #-}
+{-# LANGUAGE FlexibleInstances #-}
 module Language.Haskell.LSP.Test.Parsing where
 
+import Control.Applicative
+import Control.Monad.Trans.Class
+import Control.Monad.IO.Class
+import Control.Monad.Trans.Reader
+import Control.Monad.Trans.State
 import Language.Haskell.LSP.Messages
-import Language.Haskell.LSP.Types
+import Language.Haskell.LSP.Types hiding (error)
 import Language.Haskell.LSP.Test.Messages
-import Text.Parsec hiding (satisfy)
+import Language.Haskell.LSP.Test.Decoding
+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
+  {
+    serverIn :: Handle,
+    rootDir :: FilePath,
+    messageChan :: Chan FromServerMessage,
+    requestMap :: MVar RequestMap
+  }
 
-type MessageParser = Parsec [FromServerMessage] MessageParserState
+newtype SessionState = SessionState
+  {
+    curReqId :: LspId
+  }
 
-notification :: MessageParser FromServerMessage
+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
+
+-- | Matches if the message is a notification.
+notification :: Monad m => ConduitParser FromServerMessage m FromServerMessage
 notification = satisfy isServerNotification
 
-request :: MessageParser FromServerMessage
+-- | Matches if the message is a request.
+request :: Monad m => ConduitParser FromServerMessage m FromServerMessage
 request = satisfy isServerRequest
 
-response :: MessageParser FromServerMessage
+-- | Matches if the message is a response.
+response :: Monad m => ConduitParser FromServerMessage m FromServerMessage
 response = satisfy isServerResponse
 
-satisfy :: (Stream s m a, Eq a, Show a) => (a -> Bool) -> ParsecT s u m a
-satisfy pred = tokenPrim show nextPos test
-  where nextPos x _ _ = x
-        test x = if pred x then Just x else Nothing
+-- | Matches if the message is a log message notification or a show message notification/request.
+loggingNotification :: Monad m => ConduitParser FromServerMessage m FromServerMessage
+loggingNotification = satisfy shouldSkip
+  where
+    shouldSkip (NotLogMessage _) = True
+    shouldSkip (NotShowMessage _) = 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
+  if pred x
+    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
+
+get :: Monad m => ParserStateReader a s r m s
+get = lift Control.Monad.Trans.State.get
 
-testLog = NotLogMessage (NotificationMessage "2.0" WindowLogMessage (LogMessageParams MtLog "Hello world"))
+put :: Monad m => s -> ParserStateReader a s r m ()
+put = lift . Control.Monad.Trans.State.put
 
-testSymbols = RspDocumentSymbols (ResponseMessage "2.0" (IdRspInt 0) (Just (List [])) Nothing)
+modify :: Monad m => (s -> s) -> ParserStateReader a s r m ()
+modify = lift . Control.Monad.Trans.State.modify
 
-parseMessages :: MessageParser a -> [FromServerMessage] -> Either ParseError a
-parseMessages parser = runP parser MessageParserState ""
\ No newline at end of file
+ask :: Monad m => ParserStateReader a s r m r
+ask = lift $ lift Control.Monad.Trans.Reader.ask
\ No newline at end of file