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Fail with error on unrecognized language pragmas #45

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Fail with error on unrecognized language pragmas #45

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4 changes: 3 additions & 1 deletion src/Refact/Run.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -192,7 +192,9 @@ filterFilename = do
parseModuleWithArgs :: [String] -> FilePath -> IO (Either (SrcSpan, String) (Anns, GHC.ParsedSource))
parseModuleWithArgs ghcArgs fp = EP.ghcWrapper $ do
dflags1 <- EP.initDynFlags fp
(dflags2, _, _) <- GHC.parseDynamicFlagsCmdLine dflags1 (map GHC.noLoc ghcArgs)
(dflags2, unusedArgs, _) <- GHC.parseDynamicFlagsCmdLine dflags1 (map GHC.noLoc ghcArgs)
liftIO $ unless (null unusedArgs)
(fail ("Unrecognized GHC args: " ++ intercalate ", " (map GHC.unLoc unusedArgs)))
_ <- GHC.setSessionDynFlags dflags2
res <- EP.parseModuleApiAnnsWithCppInternal EP.defaultCppOptions dflags2 fp
return $ EP.postParseTransform res rigidLayout
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