ghc-mod/Language/Haskell/GhcMod/Check.hs

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module Language.Haskell.GhcMod.Check (checkSyntax, check) where
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import Control.Applicative
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import Control.Monad
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import CoreMonad
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import Exception
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import GHC
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import Language.Haskell.GhcMod.ErrMsg
import Language.Haskell.GhcMod.GHCApi
import Language.Haskell.GhcMod.Types
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----------------------------------------------------------------
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-- | Checking syntax of a target file using GHC.
-- Warnings and errors are returned.
checkSyntax :: Options
-> Cradle
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-> [FilePath] -- ^ The target files.
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-> IO String
checkSyntax _ _ [] = error "ghc-mod: checkSyntax: No files given"
checkSyntax opt cradle files = unlines <$> withGHC sessionName (check opt cradle files)
where
sessionName = case files of
[file] -> file
_ -> "MultipleFiles"
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----------------------------------------------------------------
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-- | Checking syntax of a target file using GHC.
-- Warnings and errors are returned.
check :: Options
-> Cradle
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-> [FilePath] -- ^ The target files.
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-> Ghc [String]
check _ _ [] = error "ghc-mod: check: No files given"
check opt cradle fileNames = checkIt `gcatch` handleErrMsg ls
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where
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checkIt = do
(readLog,_) <- initializeFlagsWithCradle opt cradle options True
setTargetFiles fileNames
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void $ load LoadAllTargets
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liftIO readLog
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options
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| expandSplice opt = "-w:" : ghcOpts opt
| otherwise = "-Wall" : ghcOpts opt
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ls = lineSeparator opt