-- 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
(
, getDocumentSymbols
-- ** Diagnostics
, waitForDiagnostics
+ , waitForDiagnosticsSource
, noDiagnostics
-- ** Commands
, executeCommand
, getCompletions
-- ** References
, getReferences
+ -- ** Definitions
+ , getDefinitions
+ -- ** Renaming
+ , rename
+ -- ** Hover
+ , getHover
+ -- ** Highlights
+ , getHighlights
-- ** Edits
, applyEdit
) where
let (List diags) = diagsNot ^. params . LSP.diagnostics
return diags
+waitForDiagnosticsSource :: String -> Session [Diagnostic]
+waitForDiagnosticsSource src = do
+ diags <- waitForDiagnostics
+ let res = filter matches diags
+ if null res
+ then waitForDiagnosticsSource src
+ else return res
+ where
+ matches :: Diagnostic -> Bool
+ matches d = d ^. source == Just (T.pack src)
+
-- | Expects a 'PublishDiagnosticsNotification' and throws an
-- 'UnexpectedDiagnosticsException' if there are any diagnostics
-- returned.
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
+ case getResponseResult rsp of
Completions (List items) -> return items
CompletionList (CompletionListType _ (List items)) -> return items
-getReferences :: TextDocumentIdentifier -> Position -> Bool -> Session [Location]
+-- | Returns the references for the position in the document.
+getReferences :: TextDocumentIdentifier -- ^ The document to lookup in.
+ -> Position -- ^ The position to lookup.
+ -> Bool -- ^ Whether to include declarations as references.
+ -> Session [Location] -- ^ The locations of the references.
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 <$> sendRequest TextDocumentDefinition params
+
+-- ^ Renames the term at the specified position.
+rename :: TextDocumentIdentifier -> Position -> String -> Session ()
+rename doc pos newName = do
+ let params = RenameParams doc pos (T.pack newName)
+ rsp <- sendRequest TextDocumentRename params :: Session RenameResponse
+ let wEdit = getResponseResult rsp
+ req = RequestMessage "" (IdInt 0) WorkspaceApplyEdit (ApplyWorkspaceEditParams wEdit)
+ updateState (ReqApplyWorkspaceEdit req)
+
+-- ^ Returns the hover information at the specified position.
+getHover :: TextDocumentIdentifier -> Position -> Session (Maybe Hover)
+getHover doc pos =
+ let params = TextDocumentPositionParams doc pos
+ in getResponseResult <$> sendRequest TextDocumentHover params
+
+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
+getResponseResult rsp = fromMaybe exc (rsp ^. result)
+ where exc = throw $ UnexpectedResponseError (rsp ^. LSP.id)
+ (fromJust $ rsp ^. LSP.error)
+