Files
rlp/src/Compiler/RlpcError.hs
crumbtoo e3b18c8915 errors!
2024-01-22 12:20:05 -07:00

71 lines
1.7 KiB
Haskell

{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE PatternSynonyms, ViewPatterns #-}
module Compiler.RlpcError
( IsRlpcError(..)
, MsgEnvelope(..)
, Severity(..)
, RlpcError(..)
, SrcSpan(..)
, msgSpan
, msgDiagnostic
, msgSeverity
, liftRlpcErrors
, errorMsg
)
where
----------------------------------------------------------------------------------
import Control.Monad.Errorful
import Data.Text (Text)
import Data.Text qualified as T
import GHC.Exts (IsString(..))
import Lens.Micro.Platform
import Lens.Micro.Platform.Internal
----------------------------------------------------------------------------------
data MsgEnvelope e = MsgEnvelope
{ _msgSpan :: SrcSpan
, _msgDiagnostic :: e
, _msgSeverity :: Severity
}
deriving (Functor, Show)
newtype RlpcError = Text [Text]
deriving Show
instance IsString RlpcError where
fromString = Text . pure . T.pack
class IsRlpcError e where
liftRlpcError :: e -> RlpcError
instance IsRlpcError RlpcError where
liftRlpcError = id
data Severity = SevWarning
| SevError
deriving Show
data SrcSpan = SrcSpan
!Int -- ^ Line
!Int -- ^ Column
!Int -- ^ Length
deriving Show
makeLenses ''MsgEnvelope
liftRlpcErrors :: (Functor m, IsRlpcError e)
=> ErrorfulT e m a
-> ErrorfulT RlpcError m a
liftRlpcErrors = mapErrorful liftRlpcError
instance (IsRlpcError e) => IsRlpcError (MsgEnvelope e) where
liftRlpcError msg = msg ^. msgDiagnostic & liftRlpcError
errorMsg :: SrcSpan -> e -> MsgEnvelope e
errorMsg s e = MsgEnvelope
{ _msgSpan = s
, _msgDiagnostic = e
, _msgSeverity = SevError
}