{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE FlexibleInstances #-}
+{-# LANGUAGE MultiParamTypeClasses #-}
+{-# LANGUAGE FlexibleContexts #-}
module Language.Haskell.LSP.Test.Session
( Session
, get
, put
, modify
- , ask)
+ , ask
+ , asks
+ , sendMessage
+ , processMessage)
where
import Control.Monad.Trans.Reader (ReaderT, runReaderT)
import qualified Control.Monad.Trans.Reader as Reader (ask)
import Control.Monad.Trans.State (StateT, runStateT)
-import qualified Control.Monad.Trans.State as State (get, put, modify)
+import qualified Control.Monad.Trans.State as State (get, put)
import qualified Data.ByteString.Lazy.Char8 as B
import Data.Aeson
import Data.Conduit hiding (await)
import Data.Default
import Data.Foldable
import Data.List
+import qualified Data.Map as Map
import qualified Data.Text as T
+import qualified Data.Text.IO as T
import qualified Data.HashMap.Strict as HashMap
+import Data.Maybe
import Language.Haskell.LSP.Messages
import Language.Haskell.LSP.TH.ClientCapabilities
-import Language.Haskell.LSP.Types
+import Language.Haskell.LSP.Types hiding (error)
import Language.Haskell.LSP.VFS
import Language.Haskell.LSP.Test.Compat
import Language.Haskell.LSP.Test.Decoding
import Language.Haskell.LSP.Test.Exceptions
+import System.Console.ANSI
import System.Directory
import System.IO
-- | Stuff you can configure for a 'Session'.
data SessionConfig = SessionConfig
{
- capabilities :: ClientCapabilities, -- ^ Specific capabilities the client should advertise.
- timeout :: Int -- ^ Maximum time to wait for a request in seconds.
+ capabilities :: ClientCapabilities -- ^ Specific capabilities the client should advertise. Default is yes to everything.
+ , timeout :: Int -- ^ Maximum time to wait for a request in seconds. Defaults to 60.
+ , logStdErr :: Bool -- ^ When True redirects the servers stderr output to haskell-lsp-test's stdout. Defaults to False
}
instance Default SessionConfig where
- def = SessionConfig def 60
+ def = SessionConfig def 60 False
class Monad m => MonadSessionConfig m where
sessionConfig :: m SessionConfig
, config :: SessionConfig
}
+class Monad m => HasReader r m where
+ ask :: m r
+ asks :: (r -> b) -> m b
+ asks f = f <$> ask
+
+instance Monad m => HasReader r (ParserStateReader a s r m) where
+ ask = lift $ lift Reader.ask
+
+instance HasReader SessionContext SessionProcessor where
+ ask = lift $ lift Reader.ask
+
data SessionState = SessionState
{
curReqId :: LspId
, vfs :: VFS
+ , curDiagnostics :: Map.Map Uri [Diagnostic]
}
+class Monad m => HasState s m where
+ get :: m s
+
+ put :: s -> m ()
+
+ modify :: (s -> s) -> m ()
+ modify f = get >>= put . f
+
+instance Monad m => HasState s (ParserStateReader a s r m) where
+ get = lift State.get
+ put = lift . State.put
+
+instance HasState SessionState SessionProcessor where
+ get = lift State.get
+ put = lift . State.put
+
type ParserStateReader a s r m = ConduitParser a (StateT s (ReaderT r m))
type SessionProcessor = ConduitM FromServerMessage FromServerMessage (StateT SessionState (ReaderT SessionContext IO))
+
runSession :: Chan FromServerMessage -> SessionProcessor () -> SessionContext -> SessionState -> Session a -> IO (a, SessionState)
runSession chan preprocessor context state session = runReaderT (runStateT conduit state) context
where conduit = runConduit $ chanSource chan .| preprocessor .| runConduitParser (catchError session handler)
Just _ -> await >>= skipToEnd
Nothing -> return x
-get :: Monad m => ParserStateReader a s r m s
-get = lift State.get
-
-put :: Monad m => s -> ParserStateReader a s r m ()
-put = lift . State.put
-
-modify :: Monad m => (s -> s) -> ParserStateReader a s r m ()
-modify = lift . State.modify
-
-ask :: Monad m => ParserStateReader a s r m r
-ask = lift $ lift Reader.ask
-
-- | An internal version of 'runSession' that allows for a custom handler to listen to the server.
-- It also does not automatically send initialize and exit messages.
runSessionWithHandles :: Handle -- ^ Server in
initRsp <- newEmptyMVar
let context = SessionContext serverIn absRootDir messageChan reqMap initRsp config
- initState = SessionState (IdInt 0) mempty
+ initState = SessionState (IdInt 0) mempty mempty
threadId <- forkIO $ void $ runSession meaninglessChan processor context initState (serverHandler serverOut)
(result, _) <- runSession messageChan processor context initState session
where processor :: SessionProcessor ()
processor = awaitForever $ \msg -> do
- processTextChanges msg
+ processMessage msg
yield msg
-processTextChanges :: FromServerMessage -> SessionProcessor ()
-processTextChanges (ReqApplyWorkspaceEdit r) = do
- List changeParams <- case r ^. params . edit . documentChanges of
- Just cs -> mapM applyTextDocumentEdit cs
+processMessage :: (MonadIO m, HasReader SessionContext m, HasState SessionState m) => FromServerMessage -> m ()
+processMessage (NotPublishDiagnostics n) = do
+ let List diags = n ^. params . diagnostics
+ doc = n ^. params . uri
+ modify (\s ->
+ let newDiags = Map.insert doc diags (curDiagnostics s)
+ in s { curDiagnostics = newDiags })
+
+processMessage (ReqApplyWorkspaceEdit r) = do
+
+ allChangeParams <- case r ^. params . edit . documentChanges of
+ Just (List cs) -> do
+ mapM_ (checkIfNeedsOpened . (^. textDocument . uri)) cs
+ return $ map getParams cs
Nothing -> case r ^. params . edit . changes of
- Just cs -> mapM (uncurry applyTextEdit) (List (HashMap.toList cs))
- Nothing -> return (List [])
+ Just cs -> do
+ mapM_ checkIfNeedsOpened (HashMap.keys cs)
+ return $ concatMap (uncurry getChangeParams) (HashMap.toList cs)
+ Nothing -> error "No changes!"
+
+ oldVFS <- vfs <$> get
+ newVFS <- liftIO $ changeFromServerVFS oldVFS r
+ modify (\s -> s { vfs = newVFS })
- let groupedParams = groupBy (\a b -> (a ^. textDocument == b ^. textDocument)) changeParams
+ let groupedParams = groupBy (\a b -> (a ^. textDocument == b ^. textDocument)) allChangeParams
mergedParams = map mergeParams groupedParams
-- TODO: Don't do this when replaying a session
- forM_ mergedParams $ \p -> do
- h <- serverIn <$> lift (lift Reader.ask)
- let msg = NotificationMessage "2.0" TextDocumentDidChange p
- liftIO $ B.hPut h $ addHeader (encode msg)
+ forM_ mergedParams (sendMessage . NotificationMessage "2.0" TextDocumentDidChange)
- where applyTextDocumentEdit (TextDocumentEdit docId (List edits)) = do
- oldVFS <- vfs <$> lift State.get
+ where checkIfNeedsOpened uri = do
+ oldVFS <- vfs <$> get
+ ctx <- ask
+
+ -- if its not open, open it
+ unless (uri `Map.member` oldVFS) $ do
+ let fp = fromJust $ uriToFilePath uri
+ contents <- liftIO $ T.readFile fp
+ let item = TextDocumentItem (filePathToUri fp) "" 0 contents
+ msg = NotificationMessage "2.0" TextDocumentDidOpen (DidOpenTextDocumentParams item)
+ liftIO $ B.hPut (serverIn ctx) $ addHeader (encode msg)
+
+ oldVFS <- vfs <$> get
+ newVFS <- liftIO $ openVFS oldVFS msg
+ modify (\s -> s { vfs = newVFS })
+
+ getParams (TextDocumentEdit docId (List edits)) =
let changeEvents = map (\e -> TextDocumentContentChangeEvent (Just (e ^. range)) Nothing (e ^. newText)) edits
- params = DidChangeTextDocumentParams docId (List changeEvents)
- newVFS <- liftIO $ changeVFS oldVFS (fmClientDidChangeTextDocumentNotification params)
- lift $ State.modify (\s -> s { vfs = newVFS })
- return params
+ in DidChangeTextDocumentParams docId (List changeEvents)
+
+ textDocumentVersions uri = map (VersionedTextDocumentIdentifier uri) [0..]
- applyTextEdit uri edits = applyTextDocumentEdit (TextDocumentEdit (VersionedTextDocumentIdentifier uri 0) edits)
+ textDocumentEdits uri edits = map (\(v, e) -> TextDocumentEdit v (List [e])) $ zip (textDocumentVersions uri) edits
+
+ getChangeParams uri (List edits) = map getParams (textDocumentEdits uri (reverse edits))
mergeParams :: [DidChangeTextDocumentParams] -> DidChangeTextDocumentParams
mergeParams params = let events = concat (toList (map (toList . (^. contentChanges)) params))
in DidChangeTextDocumentParams (head params ^. textDocument) (List events)
-processTextChanges _ = return ()
+processMessage _ = return ()
+
+sendMessage :: (MonadIO m, HasReader SessionContext m, ToJSON a) => a -> m ()
+sendMessage msg = do
+ h <- serverIn <$> ask
+ let encoded = encode msg
+ liftIO $ do
+
+ setSGR [SetColor Foreground Vivid Cyan]
+ putStrLn $ "--> " ++ B.unpack encoded
+ setSGR [Reset]
+
+ B.hPut h (addHeader encoded)
projects / opengl.git / blobdiff