124 lines
3.6 KiB
Haskell
124 lines
3.6 KiB
Haskell
{-# LANGUAGE FlexibleInstances #-}
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module Language.Haskell.GhcMod.Types where
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-- | Output style.
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data OutputStyle = LispStyle -- ^ S expression style.
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| PlainStyle -- ^ Plain textstyle.
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-- | The type for line separator. Historically, a Null string is used.
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newtype LineSeparator = LineSeparator String
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data Options = Options {
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outputStyle :: OutputStyle
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, hlintOpts :: [String]
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, ghcOpts :: [String]
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-- | If 'True', 'browse' also returns operators.
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, operators :: Bool
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-- | If 'True', 'browse' also returns types.
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, detailed :: Bool
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-- | If 'True', 'browse' will return fully qualified name
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, qualified :: Bool
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-- | Whether or not Template Haskell should be expanded.
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, expandSplice :: Bool
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-- | Line separator string.
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, lineSeparator :: LineSeparator
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-- | Package id of module
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, packageId :: Maybe String
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}
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-- | A default 'Options'.
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defaultOptions :: Options
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defaultOptions = Options {
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outputStyle = PlainStyle
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, hlintOpts = []
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, ghcOpts = []
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, operators = False
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, detailed = False
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, qualified = False
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, expandSplice = False
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, lineSeparator = LineSeparator "\0"
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, packageId = Nothing
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}
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----------------------------------------------------------------
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convert :: ToString a => Options -> a -> String
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convert Options{ outputStyle = LispStyle } = toLisp
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convert Options{ outputStyle = PlainStyle } = toPlain
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class ToString a where
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toLisp :: a -> String
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toPlain :: a -> String
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instance ToString [String] where
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toLisp = addNewLine . toSexp True
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toPlain = unlines
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instance ToString [((Int,Int,Int,Int),String)] where
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toLisp = addNewLine . toSexp False . map toS
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where
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toS x = "(" ++ tupToString x ++ ")"
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toPlain = unlines . map tupToString
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toSexp :: Bool -> [String] -> String
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toSexp False ss = "(" ++ unwords ss ++ ")"
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toSexp True ss = "(" ++ unwords (map quote ss) ++ ")"
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tupToString :: ((Int,Int,Int,Int),String) -> String
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tupToString ((a,b,c,d),s) = show a ++ " "
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++ show b ++ " "
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++ show c ++ " "
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++ show d ++ " "
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++ quote s
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quote :: String -> String
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quote x = "\"" ++ x ++ "\""
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addNewLine :: String -> String
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addNewLine = (++ "\n")
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----------------------------------------------------------------
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-- | The environment where this library is used.
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data Cradle = Cradle {
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-- | The directory where this library is executed.
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cradleCurrentDir :: FilePath
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-- | The directory where a cabal file is found.
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, cradleCabalDir :: Maybe FilePath
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-- | The file name of the found cabal file.
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, cradleCabalFile :: Maybe FilePath
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-- | The package db options. ([\"-no-user-package-db\",\"-package-db\",\"\/foo\/bar\/i386-osx-ghc-7.6.3-packages.conf.d\"])
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, cradlePackageDbOpts :: [GHCOption]
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, cradlePackages :: [Package]
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} deriving (Eq, Show)
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----------------------------------------------------------------
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-- | A single GHC command line option.
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type GHCOption = String
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-- | An include directory for modules.
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type IncludeDir = FilePath
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-- | A package name.
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type PackageBaseName = String
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-- | A package name and its ID.
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type Package = (PackageBaseName, Maybe String)
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-- | Haskell expression.
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type Expression = String
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-- | Module name.
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type ModuleString = String
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data CheckSpeed = Slow | Fast
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-- | Option information for GHC
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data CompilerOptions = CompilerOptions {
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ghcOptions :: [GHCOption] -- ^ Command line options
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, includeDirs :: [IncludeDir] -- ^ Include directories for modules
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, depPackages :: [Package] -- ^ Dependent package names
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} deriving (Eq, Show)
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