, runSessionWithConfig
, Session
, SessionConfig(..)
- , MonadSessionConfig(..)
, SessionException(..)
, anySessionException
+ , withTimeout
-- * Sending
, sendRequest
, sendRequest_
, sendNotification'
, sendResponse
-- * Receving
+ , message
, anyRequest
- , request
, anyResponse
- , response
, anyNotification
- , notification
, anyMessage
, loggingNotification
, publishDiagnosticsNotification
-- * Combinators
- , choice
- , option
- , optional
- , between
- , some
- , many
- , sepBy
- , sepBy1
- , sepEndBy1
- , sepEndBy
- , endBy1
- , endBy
- , count
- , manyTill
- , skipMany
- , skipSome
- , skipManyTill
- , skipSomeTill
- , (<|>)
, satisfy
-- * Utilities
, initializeResponse
, documentContents
, getDocumentEdit
, getDocUri
+ , getVersionedDoc
-- ** Symbols
, getDocumentSymbols
-- ** Diagnostics
-- ** Code Actions
, getAllCodeActions
, executeCodeAction
+ -- ** Completions
+ , getCompletions
+ -- ** Edits
+ , applyEdit
) where
-import Control.Applicative
import Control.Applicative.Combinators
import Control.Concurrent
import Control.Monad
import qualified Data.HashMap.Strict as HashMap
import qualified Data.Map as Map
import Data.Maybe
-import Language.Haskell.LSP.Types hiding (id, capabilities, error)
+import Language.Haskell.LSP.Types hiding (id, capabilities, message)
import qualified Language.Haskell.LSP.Types as LSP
+import qualified Language.Haskell.LSP.Types.Capabilities as LSP
import Language.Haskell.LSP.Messages
import Language.Haskell.LSP.VFS
import Language.Haskell.LSP.Test.Compat
sendNotification Exit ExitParams
return result
-
+ where
-- | Listens to the server output, makes sure it matches the record and
-- signals any semaphores
-listenServer :: Handle -> Session ()
-listenServer serverOut = do
- msgBytes <- liftIO $ getNextMessage serverOut
+ listenServer :: Handle -> SessionContext -> IO ()
+ listenServer serverOut context = do
+ msgBytes <- getNextMessage serverOut
- context <- ask
- reqMap <- liftIO $ readMVar $ requestMap context
+ reqMap <- readMVar $ requestMap context
let msg = decodeFromServerMsg reqMap msgBytes
- liftIO $ writeChan (messageChan context) msg
+ writeChan (messageChan context) (ServerMessage msg)
- listenServer serverOut
+ listenServer serverOut context
-- | The current text contents of a document.
documentContents :: TextDocumentIdentifier -> Session T.Text
-- and returns the new content
getDocumentEdit :: TextDocumentIdentifier -> Session T.Text
getDocumentEdit doc = do
- req <- request :: Session ApplyWorkspaceEditRequest
+ req <- message :: Session ApplyWorkspaceEditRequest
unless (checkDocumentChanges req || checkChanges req) $
- liftIO $ throw (IncorrectApplyEditRequestException (show req))
+ liftIO $ throw (IncorrectApplyEditRequest (show req))
documentContents doc
where
let fp = rootDir context </> file
return $ filePathToUri fp
+-- | Waits for diagnostics to be published and returns them.
waitForDiagnostics :: Session [Diagnostic]
waitForDiagnostics = do
- diagsNot <- skipManyTill anyMessage notification :: Session PublishDiagnosticsNotification
+ diagsNot <- skipManyTill anyMessage message :: Session PublishDiagnosticsNotification
let (List diags) = diagsNot ^. params . LSP.diagnostics
return diags
-- returned.
noDiagnostics :: Session ()
noDiagnostics = do
- diagsNot <- notification :: Session PublishDiagnosticsNotification
- when (diagsNot ^. params . LSP.diagnostics /= List []) $ liftIO $ throw UnexpectedDiagnosticsException
+ diagsNot <- message :: Session PublishDiagnosticsNotification
+ when (diagsNot ^. params . LSP.diagnostics /= List []) $ liftIO $ throw UnexpectedDiagnostics
-- | Returns the symbols in a document.
getDocumentSymbols :: TextDocumentIdentifier -> Session [SymbolInformation]
let (Just (List symbols)) = mRes
return symbols
+-- | Returns all the code actions in a document by
+-- querying the code actions at each of the current
+-- diagnostics' positions.
getAllCodeActions :: TextDocumentIdentifier -> Session [CommandOrCodeAction]
getAllCodeActions doc = do
curDiags <- fromMaybe [] . Map.lookup (doc ^. uri) . curDiagnostics <$> get
let Just (List cmdOrCAs) = mRes
in return (acc ++ cmdOrCAs)
+-- | Executes a command.
executeCommand :: Command -> Session ()
executeCommand cmd = do
let args = decode $ encode $ fromJust $ cmd ^. arguments
execParams = ExecuteCommandParams (cmd ^. command) args
sendRequest_ WorkspaceExecuteCommand execParams
+-- | Executes a code action.
+-- Matching with the specification, if a code action
+-- contains both an edit and a command, the edit will
+-- be applied first.
executeCodeAction :: CodeAction -> Session ()
executeCodeAction action = do
maybe (return ()) handleEdit $ action ^. edit
where handleEdit :: WorkspaceEdit -> Session ()
handleEdit e =
+ -- Its ok to pass in dummy parameters here as they aren't used
let req = RequestMessage "" (IdInt 0) WorkspaceApplyEdit (ApplyWorkspaceEditParams e)
- in processMessage (ReqApplyWorkspaceEdit req)
\ No newline at end of file
+ in updateState (ReqApplyWorkspaceEdit req)
+
+-- | Adds the current version to the document, as tracked by the session.
+getVersionedDoc :: TextDocumentIdentifier -> Session VersionedTextDocumentIdentifier
+getVersionedDoc (TextDocumentIdentifier uri) = do
+ fs <- vfs <$> get
+ let ver =
+ case fs Map.!? uri of
+ Just (VirtualFile v _) -> Just v
+ _ -> Nothing
+ return (VersionedTextDocumentIdentifier uri ver)
+
+-- | Applys an edit to the document and returns the updated document version.
+applyEdit :: TextDocumentIdentifier -> TextEdit -> Session VersionedTextDocumentIdentifier
+applyEdit doc edit = do
+
+ verDoc <- getVersionedDoc doc
+
+ caps <- asks (capabilities . config)
+
+ let supportsDocChanges = fromMaybe False $ do
+ let LSP.ClientCapabilities mWorkspace _ _ = caps
+ LSP.WorkspaceClientCapabilities _ mEdit _ _ _ _ <- mWorkspace
+ LSP.WorkspaceEditClientCapabilities mDocChanges <- mEdit
+ mDocChanges
+
+ let wEdit = if supportsDocChanges
+ then
+ let docEdit = TextDocumentEdit verDoc (List [edit])
+ in WorkspaceEdit Nothing (Just (List [docEdit]))
+ else
+ let changes = HashMap.singleton (doc ^. uri) (List [edit])
+ in WorkspaceEdit (Just changes) Nothing
+
+ let req = RequestMessage "" (IdInt 0) WorkspaceApplyEdit (ApplyWorkspaceEditParams wEdit)
+ updateState (ReqApplyWorkspaceEdit req)
+
+ -- version may have changed
+ getVersionedDoc doc
+
+-- | Returns the completions for the position in the document.
+getCompletions :: TextDocumentIdentifier -> Position -> Session [CompletionItem]
+getCompletions doc pos = do
+ rsp <- sendRequest TextDocumentCompletion (TextDocumentPositionParams doc pos)
+
+ let exc = throw $ UnexpectedResponseError (rsp ^. LSP.id)
+ (fromJust $ rsp ^. LSP.error)
+ res = fromMaybe exc (rsp ^. result)
+ case res of
+ Completions (List items) -> return items
+ CompletionList (CompletionListType _ (List items)) -> return items
projects / lsp-test.git / blobdiff