-- Maintainer : luke_lau@icloud.com
-- Stability : experimental
--
--- A framework for testing <https://github.com/Microsoft/language-server-protocol Language Server Protocol servers> at the JSON level.
+-- A framework for testing
+-- <https://github.com/Microsoft/language-server-protocol Language Server Protocol servers>
+-- functionally.
module Language.Haskell.LSP.Test
(
, SessionException(..)
, anySessionException
, withTimeout
+ -- * Capabilities
+ , fullCaps
-- * Sending
, sendRequest
, sendRequest_
, initializeResponse
-- ** Documents
, openDoc
+ , closeDoc
, documentContents
, getDocumentEdit
, getDocUri
, getCompletions
-- ** References
, getReferences
+ -- ** Definitions
+ , getDefinitions
-- ** Renaming
, rename
+ -- ** Hover
+ , getHover
+ -- ** Highlights
+ , getHighlights
+ -- ** Formatting
+ , formatDoc
+ , formatRange
-- ** Edits
, applyEdit
) where
import qualified Language.Haskell.LSP.Types.Capabilities as LSP
import Language.Haskell.LSP.Messages
import Language.Haskell.LSP.VFS
+import Language.Haskell.LSP.Test.Capabilities
import Language.Haskell.LSP.Test.Compat
import Language.Haskell.LSP.Test.Decoding
import Language.Haskell.LSP.Test.Exceptions
-- | Starts a new session.
runSession :: String -- ^ The command to run the server.
+ -> LSP.ClientCapabilities -- ^ The capabilities that the client should declare.
-> FilePath -- ^ The filepath to the root directory for the session.
-> Session a -- ^ The session to run.
-> IO a
runSession = runSessionWithConfig def
-- | Starts a new sesion with a client with the specified capabilities.
-runSessionWithConfig :: SessionConfig -- ^ The capabilities the client should have.
+runSessionWithConfig :: SessionConfig -- ^ Configuration options for the session.
-> String -- ^ The command to run the server.
+ -> LSP.ClientCapabilities -- ^ The capabilities that the client should declare.
-> FilePath -- ^ The filepath to the root directory for the session.
-> Session a -- ^ The session to run.
-> IO a
-runSessionWithConfig config serverExe rootDir session = do
+runSessionWithConfig config serverExe caps rootDir session = do
pid <- getCurrentProcessID
absRootDir <- canonicalizePath rootDir
(Just $ T.pack absRootDir)
(Just $ filePathToUri absRootDir)
Nothing
- (capabilities config)
+ caps
(Just TraceOff)
withServer serverExe (logStdErr config) $ \serverIn serverOut _ ->
- runSessionWithHandles serverIn serverOut listenServer config rootDir $ do
+ runSessionWithHandles serverIn serverOut listenServer config caps rootDir $ do
-- Wrap the session around initialize and shutdown calls
initRspMsg <- sendRequest Initialize initializeParams :: Session InitializeResponse
contents <- liftIO $ T.readFile fp
return $ TextDocumentItem (filePathToUri fp) (T.pack languageId) 0 contents
+-- | Closes a text document and sends a notification to the client.
+closeDoc :: TextDocumentIdentifier -> Session ()
+closeDoc docId = do
+ let params = DidCloseTextDocumentParams (TextDocumentIdentifier (docId ^. uri))
+ sendNotification TextDocumentDidClose params
+
+ oldVfs <- vfs <$> get
+ let notif = NotificationMessage "" TextDocumentDidClose params
+ newVfs <- liftIO $ closeVFS oldVfs notif
+ modify $ \s -> s { vfs = newVfs }
+
-- | Gets the Uri for the file corrected to the session directory.
getDocUri :: FilePath -> Session Uri
getDocUri file = do
verDoc <- getVersionedDoc doc
- caps <- asks (capabilities . config)
+ caps <- asks sessionCapabilities
let supportsDocChanges = fromMaybe False $ do
let LSP.ClientCapabilities mWorkspace _ _ = caps
getReferences doc pos inclDecl =
let ctx = ReferenceContext inclDecl
params = ReferenceParams doc pos ctx
- in fromMaybe [] . (^. result) <$> sendRequest TextDocumentReferences params
+ in getResponseResult <$> sendRequest TextDocumentReferences params
+
+-- | Returns the definition(s) for the term at the specified position.
+getDefinitions :: TextDocumentIdentifier -- ^ The document the term is in.
+ -> Position -- ^ The position the term is at.
+ -> Session [Location] -- ^ The location(s) of the definitions
+getDefinitions doc pos =
+ let params = TextDocumentPositionParams doc pos
+ in getResponseResult <$> sendRequest TextDocumentDefinition params
-- ^ Renames the term at the specified position.
rename :: TextDocumentIdentifier -> Position -> String -> Session ()
req = RequestMessage "" (IdInt 0) WorkspaceApplyEdit (ApplyWorkspaceEditParams wEdit)
updateState (ReqApplyWorkspaceEdit req)
+-- | Returns the hover information at the specified position.
+getHover :: TextDocumentIdentifier -> Position -> Session (Maybe Hover)
+getHover doc pos =
+ let params = TextDocumentPositionParams doc pos
+ in getResponseResult <$> sendRequest TextDocumentHover params
+
+-- | Returns the highlighted occurences of the term at the specified position
+getHighlights :: TextDocumentIdentifier -> Position -> Session [DocumentHighlight]
+getHighlights doc pos =
+ let params = TextDocumentPositionParams doc pos
+ in getResponseResult <$> sendRequest TextDocumentDocumentHighlight params
+
-- | Checks the response for errors and throws an exception if needed.
-- Returns the result if successful.
getResponseResult :: ResponseMessage a -> a
where exc = throw $ UnexpectedResponseError (rsp ^. LSP.id)
(fromJust $ rsp ^. LSP.error)
+-- | Applies formatting to the specified document.
+formatDoc :: TextDocumentIdentifier -> FormattingOptions -> Session ()
+formatDoc doc opts = do
+ let params = DocumentFormattingParams doc opts
+ edits <- getResponseResult <$> sendRequest TextDocumentFormatting params
+ applyTextEdits doc edits
+
+-- | Applies formatting to the specified range in a document.
+formatRange :: TextDocumentIdentifier -> FormattingOptions -> Range -> Session ()
+formatRange doc opts range = do
+ let params = DocumentRangeFormattingParams doc range opts
+ edits <- getResponseResult <$> sendRequest TextDocumentRangeFormatting params
+ applyTextEdits doc edits
+
+applyTextEdits :: TextDocumentIdentifier -> List TextEdit -> Session ()
+applyTextEdits doc edits =
+ let wEdit = WorkspaceEdit (Just (HashMap.singleton (doc ^. uri) edits)) Nothing
+ req = RequestMessage "" (IdInt 0) WorkspaceApplyEdit (ApplyWorkspaceEditParams wEdit)
+ in updateState (ReqApplyWorkspaceEdit req)
+
projects / lsp-test.git / blobdiff