, module Language.Haskell.LSP.Test.Parsing
-- * Utilities
-- | Quick helper functions for common tasks.
- -- ** Initialization
+ -- ** Lifecycle
, initializeResponse
+ , exitServer
-- ** Documents
, openDoc
, openDoc'
import Data.Aeson
import Data.Default
import qualified Data.HashMap.Strict as HashMap
-import Data.IORef
import qualified Data.Map as Map
import Data.Maybe
import Language.Haskell.LSP.Types
-> Session a -- ^ The session to run.
-> IO a
runSessionWithConfig config serverExe caps rootDir session = do
- -- We use this IORef to make exception non-fatal when the server is supposed to shutdown.
- exitOk <- newIORef False
+
pid <- getCurrentProcessID
absRootDir <- canonicalizePath rootDir
caps
(Just TraceOff)
Nothing
- withServer serverExe (logStdErr config) $ \serverIn serverOut _ ->
- runSessionWithHandles serverIn serverOut (\h c -> catchWhenTrue exitOk $ listenServer h c) config caps rootDir $ do
-
+ withServer serverExe (logStdErr config) $ \serverIn serverOut serverProc ->
+ runSessionWithHandles serverIn serverOut serverProc listenServer config caps rootDir exitServer $ do
-- Wrap the session around initialize and shutdown calls
initRspMsg <- request Initialize initializeParams :: Session InitializeResponse
initRspVar <- initRsp <$> ask
liftIO $ putMVar initRspVar initRspMsg
-
sendNotification Initialized InitializedParams
case lspConfig config of
-- Run the actual test
result <- session
-
- liftIO $ atomicWriteIORef exitOk True
- sendNotification Exit ExitParams
-
return result
where
- catchWhenTrue :: IORef Bool -> IO () -> IO ()
- catchWhenTrue exitOk a =
- a `catch` (\e -> do
- x <- readIORef exitOk
- unless x $ throw (e :: SomeException))
-
- -- | Listens to the server output, makes sure it matches the record and
- -- signals any semaphores
- -- Note that on Windows, we cannot kill a thread stuck in getNextMessage.
- -- So we have to wait for the exit notification to kill the process first
- -- and then getNextMessage will fail.
+ -- | Listens to the server output until the shutdown ack,
+ -- makes sure it matches the record and signals any semaphores
listenServer :: Handle -> SessionContext -> IO ()
listenServer serverOut context = do
msgBytes <- getNextMessage serverOut
let msg = decodeFromServerMsg reqMap msgBytes
writeChan (messageChan context) (ServerMessage msg)
- listenServer serverOut context
+ case msg of
+ (RspShutdown _) -> return ()
+ _ -> listenServer serverOut context
-- | The current text contents of a document.
documentContents :: TextDocumentIdentifier -> Session T.Text
rsp <- request TextDocumentCodeLens (CodeLensParams tId) :: Session CodeLensResponse
case getResponseResult rsp of
List res -> pure res
+
+-- | Exit the server after request its shutdown
+exitServer :: Session()
+exitServer = request_ Shutdown (Nothing :: Maybe Value) >> sendNotification Exit ExitParams