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Remove redundant typed hole warnings

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This commit is contained in:
Alejandro Serrano 2014-08-15 09:41:02 +02:00
parent 7612229cc0
commit 6b62117381
1 changed files with 9 additions and 4 deletions
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11
Language/Haskell/GhcMod/Logger.hs
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@ -9,7 +9,7 @@ module Language.Haskell.GhcMod.Logger (
import Bag (Bag, bagToList, emptyBag, consBag, filterBag, unionBags)
import Control.Applicative ((<$>))
import Data.IORef (IORef, newIORef, readIORef, writeIORef, modifyIORef)
import Data.List (isPrefixOf, find, nub)
import Data.List (isPrefixOf, find, nub, isInfixOf)
import Data.Maybe (fromMaybe, isJust)
import ErrUtils (ErrMsg, WarnMsg, errMsgShortDoc, errMsgExtraInfo, mkPlainWarnMsg)
import Exception (ghandle)
@ -167,11 +167,16 @@ sourceErrorBag err = return $ Left (srcErrorMessages err)
mergeErrors :: DynFlags -> PprStyle -> Bag ErrMsg -> Bag ErrMsg -> (Bag ErrMsg, Bag ErrMsg)
mergeErrors dflag style b1 b2 =
let b1Msgs = map (ppWarnMsg dflag style) (bagToList b1)
let b1Msgs = map (\err1 -> let m = ppWarnMsg dflag style err1 in (m, head $ lines m))
(bagToList b1)
mustBeB2 = \err2 -> let msg2 = ppWarnMsg dflag style err2
in not $ msg2 `elem` b1Msgs
line2 = head $ lines msg2
in not . isJust $ find (\(msg1, line1) -> msg1 == msg2 || (line1 == line2 && isHoleMsg line1)) b1Msgs
in (b1, filterBag mustBeB2 b2)
isHoleMsg :: String -> Bool
isHoleMsg = isInfixOf "Found hole"
----------------------------------------------------------------
ppErrMsg :: DynFlags -> PprStyle -> ErrMsg -> String