-{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE MultiParamTypeClasses #-}
-{-# LANGUAGE FlexibleInstances #-}
+{-# LANGUAGE ScopedTypeVariables #-}
+{-# LANGUAGE RankNTypes #-}
+{-# LANGUAGE OverloadedStrings #-}
module Language.Haskell.LSP.Test.Parsing where
+import Control.Applicative
+import Control.Concurrent
+import Control.Lens
import Control.Monad.IO.Class
-import Control.Monad.Trans.Reader
+import Control.Monad
+import Data.Aeson
import qualified Data.ByteString.Lazy.Char8 as B
+import Data.Conduit.Parser
+import Data.Maybe
+import qualified Data.Text as T
+import Data.Typeable
import Language.Haskell.LSP.Messages
-import Language.Haskell.LSP.Types
+import Language.Haskell.LSP.Types as LSP hiding (error)
import Language.Haskell.LSP.Test.Messages
-import Language.Haskell.LSP.Test.Decoding
-import System.IO
-import Control.Concurrent
-import Text.Parsec hiding (satisfy)
+import Language.Haskell.LSP.Test.Session
+import System.Console.ANSI
+
+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
-data MessageParserState = MessageParserState
+ unless skipTimeout $
+ modify $ \s -> s { curTimeoutId = timeoutId + 1 }
-data SessionContext = SessionContext
- {
- serverIn :: Handle,
- rootDir :: FilePath,
- messageChan :: Chan FromServerMessage,
- requestMap :: MVar RequestMap
- }
+ modify $ \s -> s { lastReceivedMessage = Just x }
-newtype SessionState = SessionState
- {
- curReqId :: LspId
- }
+ if pred x
+ then do
+ liftIO $ do
+ setSGR [SetColor Foreground Vivid Magenta]
+ putStrLn $ "<-- " ++ B.unpack (encodeMsg x)
+ setSGR [Reset]
+ return x
+ else empty
-type Session = ParsecT (Chan FromServerMessage) SessionState (ReaderT SessionContext IO)
+-- | 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) $ do
+ x <- satisfy (isJust . parser)
+ return $ castMsg x
-notification :: Session FromServerMessage
-notification = satisfy isServerNotification
+-- | Matches if the message is a notification.
+anyNotification :: Session FromServerMessage
+anyNotification = named "Any notification" $ satisfy isServerNotification
-request :: Session FromServerMessage
-request = satisfy isServerRequest
+-- | Matches if the message is a request.
+anyRequest :: Session FromServerMessage
+anyRequest = named "Any request" $ satisfy isServerRequest
-response :: Session FromServerMessage
-response = satisfy isServerResponse
+-- | Matches if the message is a response.
+anyResponse :: Session FromServerMessage
+anyResponse = named "Any response" $ satisfy isServerResponse
+responseForId :: forall a. FromJSON a => LspId -> Session (ResponseMessage a)
+responseForId lid = named (T.pack $ "Response for id: " ++ show lid) $ do
+ let parser = decode . encodeMsg :: FromServerMessage -> Maybe (ResponseMessage a)
+ x <- satisfy (maybe False (\z -> z ^. LSP.id == responseId lid) . parser)
+ return $ castMsg x
+
+anyMessage :: Session FromServerMessage
+anyMessage = satisfy (const True)
+
+-- | A stupid method for getting out the inner message.
+castMsg :: FromJSON a => FromServerMessage -> a
+castMsg = fromMaybe (error "Failed casting a message") . decode . encodeMsg
+
+-- | 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 = satisfy shouldSkip
+loggingNotification = named "Logging notification" $ satisfy shouldSkip
where
shouldSkip (NotLogMessage _) = True
shouldSkip (NotShowMessage _) = True
shouldSkip (ReqShowMessage _) = True
shouldSkip _ = False
-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
-
-testLog = NotLogMessage (NotificationMessage "2.0" WindowLogMessage (LogMessageParams MtLog "Hello world"))
-
-testSymbols = RspDocumentSymbols (ResponseMessage "2.0" (IdRspInt 0) (Just (List [])) Nothing)
-
-instance (MonadIO m) => Stream (Chan a) m a where
- uncons c = do
- x <- liftIO $ readChan c
- return $ Just (x, c)
+publishDiagnosticsNotification :: Session PublishDiagnosticsNotification
+publishDiagnosticsNotification = named "Publish diagnostics notification" $ do
+ NotPublishDiagnostics diags <- satisfy test
+ return diags
+ where test (NotPublishDiagnostics _) = True
+ test _ = False