{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE MultiParamTypeClasses #-}
+{-# LANGUAGE FlexibleInstances #-}
module Language.Haskell.LSP.Test.Parsing where
-import Prelude hiding ( id )
-import Data.Aeson
-import Control.Lens
-import qualified Data.ByteString.Lazy.Char8 as B
-import Data.Maybe
-import System.IO
-import Language.Haskell.LSP.Types
- hiding ( error )
import Language.Haskell.LSP.Messages
-import qualified Data.HashMap.Strict as HM
-
-getAllMessages :: Handle -> IO [B.ByteString]
-getAllMessages h = do
- done <- hIsEOF h
- if done
- then return []
- else do
- msg <- getNextMessage h
-
- (msg :) <$> getAllMessages h
-
--- | Fetches the next message bytes based on
--- the Content-Length header
-getNextMessage :: Handle -> IO B.ByteString
-getNextMessage h = do
- headers <- getHeaders h
- case read . init <$> lookup "Content-Length" headers of
- Nothing -> error "Couldn't read Content-Length header"
- Just size -> B.hGet h size
-
-addHeader :: B.ByteString -> B.ByteString
-addHeader content = B.concat
- [ "Content-Length: "
- , B.pack $ show $ B.length content
- , "\r\n"
- , "\r\n"
- , content
- ]
-
-getHeaders :: Handle -> IO [(String, String)]
-getHeaders h = do
- l <- hGetLine h
- let (name, val) = span (/= ':') l
- if null val then return [] else ((name, drop 2 val) :) <$> getHeaders h
-
-type RequestMap = HM.HashMap LspId FromClientMessage
-
-getRequestMap :: [FromClientMessage] -> RequestMap
-getRequestMap = foldl helper HM.empty
- where
- helper acc msg = case msg of
- (ReqInitialize val) -> insert val msg acc
- (ReqShutdown val) -> insert val msg acc
- (ReqHover val) -> insert val msg acc
- (ReqCompletion val) -> insert val msg acc
- (ReqCompletionItemResolve val) -> insert val msg acc
- (ReqSignatureHelp val) -> insert val msg acc
- (ReqDefinition val) -> insert val msg acc
- (ReqFindReferences val) -> insert val msg acc
- (ReqDocumentHighlights val) -> insert val msg acc
- (ReqDocumentSymbols val) -> insert val msg acc
- (ReqWorkspaceSymbols val) -> insert val msg acc
- (ReqCodeAction val) -> insert val msg acc
- (ReqCodeLens val) -> insert val msg acc
- (ReqCodeLensResolve val) -> insert val msg acc
- (ReqDocumentFormatting val) -> insert val msg acc
- (ReqDocumentRangeFormatting val) -> insert val msg acc
- (ReqDocumentOnTypeFormatting val) -> insert val msg acc
- (ReqRename val) -> insert val msg acc
- (ReqExecuteCommand val) -> insert val msg acc
- (ReqDocumentLink val) -> insert val msg acc
- (ReqDocumentLinkResolve val) -> insert val msg acc
- (ReqWillSaveWaitUntil val) -> insert val msg acc
- _ -> acc
- insert m = HM.insert (m ^. id)
-
-matchResponseMsgType :: FromClientMessage -> B.ByteString -> FromServerMessage
-matchResponseMsgType req bytes = case req of
- ReqInitialize _ -> RspInitialize $ fromJust $ decode bytes
- ReqShutdown _ -> RspShutdown $ fromJust $ decode bytes
- ReqHover _ -> RspHover $ fromJust $ decode bytes
- ReqCompletion _ -> RspCompletion $ fromJust $ decode bytes
- ReqCompletionItemResolve _ ->
- RspCompletionItemResolve $ fromJust $ decode bytes
- ReqSignatureHelp _ -> RspSignatureHelp $ fromJust $ decode bytes
- ReqDefinition _ -> RspDefinition $ fromJust $ decode bytes
- ReqFindReferences _ -> RspFindReferences $ fromJust $ decode bytes
- ReqDocumentHighlights _ -> RspDocumentHighlights $ fromJust $ decode bytes
- ReqDocumentSymbols _ -> RspDocumentSymbols $ fromJust $ decode bytes
- ReqWorkspaceSymbols _ -> RspWorkspaceSymbols $ fromJust $ decode bytes
- ReqCodeAction _ -> RspCodeAction $ fromJust $ decode bytes
- ReqCodeLens _ -> RspCodeLens $ fromJust $ decode bytes
- ReqCodeLensResolve _ -> RspCodeLensResolve $ fromJust $ decode bytes
- ReqDocumentFormatting _ -> RspDocumentFormatting $ fromJust $ decode bytes
- ReqDocumentRangeFormatting _ ->
- RspDocumentRangeFormatting $ fromJust $ decode bytes
- ReqDocumentOnTypeFormatting _ ->
- RspDocumentOnTypeFormatting $ fromJust $ decode bytes
- ReqRename _ -> RspRename $ fromJust $ decode bytes
- ReqExecuteCommand _ -> RspExecuteCommand $ fromJust $ decode bytes
- ReqDocumentLink _ -> RspDocumentLink $ fromJust $ decode bytes
- ReqDocumentLinkResolve _ -> RspDocumentLinkResolve $ fromJust $ decode bytes
- ReqWillSaveWaitUntil _ -> RspWillSaveWaitUntil $ fromJust $ decode bytes
- x -> error $ "Not a request: " ++ show x
-
-decodeFromServerMsg :: RequestMap -> B.ByteString -> FromServerMessage
-decodeFromServerMsg reqMap bytes =
- case HM.lookup "method" (fromJust $ decode bytes :: Object) of
- Just methodStr -> case fromJSON methodStr of
- Success method -> case method of
- -- We can work out the type of the message
- TextDocumentPublishDiagnostics -> NotPublishDiagnostics $ fromJust $ decode bytes
- WindowShowMessage -> NotShowMessage $ fromJust $ decode bytes
- WindowLogMessage -> NotLogMessage $ fromJust $ decode bytes
- CancelRequestServer -> NotCancelRequestFromServer $ fromJust $ decode bytes
- TelemetryEvent -> NotTelemetry $ fromJust $ decode bytes
- WindowShowMessageRequest -> ReqShowMessage $ fromJust $ decode bytes
- ClientRegisterCapability -> ReqRegisterCapability $ fromJust $ decode bytes
- ClientUnregisterCapability -> ReqUnregisterCapability $ fromJust $ decode bytes
- WorkspaceApplyEdit -> ReqApplyWorkspaceEdit $ fromJust $ decode bytes
-
- Error e -> error e
-
- Nothing -> case decode bytes :: Maybe (ResponseMessage Value) of
- Just msg -> case HM.lookup (requestId $ msg ^. id) reqMap of
- Just req -> matchResponseMsgType req bytes -- try to decode it to more specific type
- Nothing -> error "Couldn't match up response with request"
- Nothing -> error "Couldn't decode message"
+import Language.Haskell.LSP.Types
+import Language.Haskell.LSP.Test.Messages
+import Control.Concurrent
+import Text.Parsec hiding (satisfy)
+import Control.Monad
+
+data MessageParserState = MessageParserState
+
+type MessageParser = ParsecT (Chan FromServerMessage) MessageParserState IO
+
+notification :: MessageParser FromServerMessage
+notification = satisfy isServerNotification
+
+request :: MessageParser FromServerMessage
+request = satisfy isServerRequest
+
+response :: MessageParser 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
+
+testLog = NotLogMessage (NotificationMessage "2.0" WindowLogMessage (LogMessageParams MtLog "Hello world"))
+
+testSymbols = RspDocumentSymbols (ResponseMessage "2.0" (IdRspInt 0) (Just (List [])) Nothing)
+
+instance Stream (Chan a) IO a where
+ uncons c = do
+ x <- readChan c
+ return $ Just (x, c)
+
+test :: IO ()
+test = do
+ chan <- newChan
+ let parser = do
+ n <- count 2 notification
+ rsp <- response
+ return (n, rsp)
+ forkIO $ forM_ [testLog, testLog, testSymbols] $ \x -> do
+ writeChan chan x
+ threadDelay 1000000
+ x <- runParserT parser MessageParserState "" chan
+ print x
\ No newline at end of file
projects / opengl.git / blobdiff