diff options
Diffstat (limited to 'compiler/deSugar/DsGRHSs.hs')
| -rw-r--r-- | compiler/deSugar/DsGRHSs.hs | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/compiler/deSugar/DsGRHSs.hs b/compiler/deSugar/DsGRHSs.hs index d521f537e5..4296630ba6 100644 --- a/compiler/deSugar/DsGRHSs.hs +++ b/compiler/deSugar/DsGRHSs.hs @@ -136,24 +136,25 @@ isTrueLHsExpr :: LHsExpr GhcTc -> Maybe (CoreExpr -> DsM CoreExpr) -- * Trivial wappings of these -- The arguments to Just are any HsTicks that we have found, -- because we still want to tick then, even it they are always evaluated. -isTrueLHsExpr (L _ (HsVar (L _ v))) | v `hasKey` otherwiseIdKey - || v `hasKey` getUnique trueDataConId - = Just return +isTrueLHsExpr (L _ (HsVar _ (L _ v))) | v `hasKey` otherwiseIdKey + || v `hasKey` getUnique trueDataConId + = Just return -- trueDataConId doesn't have the same unique as trueDataCon -isTrueLHsExpr (L _ (HsConLikeOut con)) | con `hasKey` getUnique trueDataCon = Just return -isTrueLHsExpr (L _ (HsTick tickish e)) +isTrueLHsExpr (L _ (HsConLikeOut _ con)) + | con `hasKey` getUnique trueDataCon = Just return +isTrueLHsExpr (L _ (HsTick _ tickish e)) | Just ticks <- isTrueLHsExpr e = Just (\x -> do wrapped <- ticks x return (Tick tickish wrapped)) -- This encodes that the result is constant True for Hpc tick purposes; -- which is specifically what isTrueLHsExpr is trying to find out. -isTrueLHsExpr (L _ (HsBinTick ixT _ e)) +isTrueLHsExpr (L _ (HsBinTick _ ixT _ e)) | Just ticks <- isTrueLHsExpr e = Just (\x -> do e <- ticks x this_mod <- getModule return (Tick (HpcTick this_mod ixT) e)) -isTrueLHsExpr (L _ (HsPar e)) = isTrueLHsExpr e +isTrueLHsExpr (L _ (HsPar _ e)) = isTrueLHsExpr e isTrueLHsExpr _ = Nothing {- |