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Refactor cases to move out let binding

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Patrick Aldis 2026-03-05 16:05:15 +00:00
parent 35b2fa4282
commit dedc72789b
1 changed files with 13 additions and 7 deletions
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20
datalog-lsp/src/Datalog/LSP/Highlight.hs
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@ -1,29 +1,35 @@
module Datalog.LSP.Highlight where
import Control.Concurrent.STM
import Control.Monad.Trans
import Data.Either (fromRight)
import Data.Map qualified as M
import Data.Text qualified as T
import Datalog.LSP.Types (DLogLspM, LSPContext (..))
import Datalog.LSP.Utils (currentBufferUri)
import Datalog.Parser (SrcLoc (..))
import Datalog.Syntax (Atom' (Atom), Program' (..), RelId (RelId), Rule' (..), Term' (..))
import Language.LSP.Protocol.Message
import Language.LSP.Protocol.Types
import Language.LSP.Server
import Control.Monad.Trans
import Control.Concurrent.STM
import qualified Data.Map as M
import Datalog.LSP.Utils (currentBufferUri)
tokenHandler :: Handlers DLogLspM
tokenHandler = requestHandler SMethod_TextDocumentSemanticTokensFull $ \req responder -> do
LSPContext parseRef <- getConfig
p <- lift . readTVarIO $ parseRef
case M.lookup (currentBufferUri req) p of
Nothing -> responder (Left $ TResponseError (InL LSPErrorCodes_RequestFailed) "Doc not bundle" Nothing)
Nothing ->
responder (Left $ TResponseError (InL LSPErrorCodes_RequestFailed) "Doc not bundle" Nothing)
Just (Left _) ->
responder (Left $ TResponseError (InL LSPErrorCodes_RequestFailed) "Failed to parse" Nothing)
Just (Right prog) -> do
let semanticTokens = fromRight (error "") $ makeSemanticTokens defaultSemanticTokensLegend $ highlightProg prog
responder (Right $ InL semanticTokens)
responder
( Right
. InL
. fromRight (error "")
. makeSemanticTokens defaultSemanticTokensLegend
$ highlightProg prog
)
highlightProg :: Program' SrcLoc -> [SemanticTokenAbsolute]
highlightProg (Program _ rs) = rs >>= highlightRule