Safe Haskell	Safe-Inferred
Language	Haskell2010

GHC.Driver.CmdLine

Description

Command-line parser

This is an abstract command-line parser used by DynFlags.

(c) The University of Glasgow 2005

Synopsis

processArgs :: Monad m => [Flag m] -> [Located String] -> (FilePath -> EwM m [Located String]) -> m ([Located String], [Err], [Warn])
parseResponseFile :: MonadIO m => FilePath -> EwM m [Located String]
data OptKind m
- = NoArg (EwM m ())
- | HasArg (String -> EwM m ())
- | SepArg (String -> EwM m ())
- | Prefix (String -> EwM m ())
- | OptPrefix (String -> EwM m ())
- | OptIntSuffix (Maybe Int -> EwM m ())
- | IntSuffix (Int -> EwM m ())
- | WordSuffix (Word -> EwM m ())
- | FloatSuffix (Float -> EwM m ())
- | PassFlag (String -> EwM m ())
- | AnySuffix (String -> EwM m ())
data GhcFlagMode
- = OnlyGhc
- | OnlyGhci
- | AllModes
- | HiddenFlag
data Flag m = Flag {
- flagName :: String
- flagOptKind :: OptKind m
- flagGhcMode :: GhcFlagMode
}
defFlag :: String -> OptKind m -> Flag m
defGhcFlag :: String -> OptKind m -> Flag m
defGhciFlag :: String -> OptKind m -> Flag m
defHiddenFlag :: String -> OptKind m -> Flag m
hoistFlag :: forall m n. (forall a. m a -> n a) -> Flag m -> Flag n
errorsToGhcException :: [(String, String)] -> GhcException
newtype Err = Err {
- errMsg :: Located String
}
data Warn = Warn {
- warnReason :: DiagnosticReason
- warnMsg :: Located String
}
data WarnReason
- = NoReason
- | ReasonDeprecatedFlag
- | ReasonUnrecognisedFlag
data EwM m a
runEwM :: EwM m a -> m (Errs, Warns, a)
addErr :: Monad m => String -> EwM m ()
addWarn :: Monad m => String -> EwM m ()
addFlagWarn :: Monad m => DiagnosticReason -> String -> EwM m ()
getArg :: Monad m => EwM m String
getCurLoc :: Monad m => EwM m SrcSpan
liftEwM :: Monad m => m a -> EwM m a

Documentation

processArgs Source #

Arguments

:: Monad m
=> [Flag m]	cmdline parser spec
-> [Located String]	args
-> (FilePath -> EwM m [Located String])	response file handler
-> m ([Located String], [Err], [Warn])

parseResponseFile :: MonadIO m => FilePath -> EwM m [Located String] Source #

Parse a response file into arguments.

data OptKind m Source #

Constructors

NoArg (EwM m ())
HasArg (String -> EwM m ())
SepArg (String -> EwM m ())
Prefix (String -> EwM m ())
OptPrefix (String -> EwM m ())
OptIntSuffix (Maybe Int -> EwM m ())
IntSuffix (Int -> EwM m ())
WordSuffix (Word -> EwM m ())
FloatSuffix (Float -> EwM m ())
PassFlag (String -> EwM m ())
AnySuffix (String -> EwM m ())

data GhcFlagMode Source #

GHC flag modes describing when a flag has an effect.

Constructors

OnlyGhc	The flag only affects the non-interactive GHC
OnlyGhci	The flag only affects the interactive GHC
AllModes	The flag affects multiple ghc modes
HiddenFlag	This flag should not be seen in cli completion

data Flag m Source #

Constructors

Flag
Fields flagName :: String flagOptKind :: OptKind m flagGhcMode :: GhcFlagMode

defFlag :: String -> OptKind m -> Flag m Source #

defGhcFlag :: String -> OptKind m -> Flag m Source #

defGhciFlag :: String -> OptKind m -> Flag m Source #

defHiddenFlag :: String -> OptKind m -> Flag m Source #

hoistFlag :: forall m n. (forall a. m a -> n a) -> Flag m -> Flag n Source #

errorsToGhcException :: [(String, String)] -> GhcException Source #

newtype Err Source #

A command-line error message

Constructors

Err
Fields errMsg :: Located String

data Warn Source #

A command-line warning message and the reason it arose

Constructors

Warn
Fields warnReason :: DiagnosticReason warnMsg :: Located String

data WarnReason Source #

Used when filtering warnings: if a reason is given it can be filtered out when displaying.

Constructors

NoReason
ReasonDeprecatedFlag
ReasonUnrecognisedFlag

Instances

Instances details

Show WarnReason Source #
Instance details Defined in GHC.Driver.CmdLine Methods showsPrec :: Int -> WarnReason -> ShowS # show :: WarnReason -> String # showList :: [WarnReason] -> ShowS #
ToJson WarnReason Source #
Instance details Defined in GHC.Driver.CmdLine Methods json :: WarnReason -> JsonDoc Source #
Outputable WarnReason Source #
Instance details Defined in GHC.Driver.CmdLine Methods ppr :: WarnReason -> SDoc Source #
Eq WarnReason Source #
Instance details Defined in GHC.Driver.CmdLine Methods (==) :: WarnReason -> WarnReason -> Bool # (/=) :: WarnReason -> WarnReason -> Bool #

data EwM m a Source #

Instances

Instances details

MonadIO m => MonadIO (EwM m) Source #
Instance details Defined in GHC.Driver.CmdLine Methods liftIO :: IO a -> EwM m a #
Monad m => Applicative (EwM m) Source #
Instance details Defined in GHC.Driver.CmdLine Methods pure :: a -> EwM m a # (<>) :: EwM m (a -> b) -> EwM m a -> EwM m b # liftA2 :: (a -> b -> c) -> EwM m a -> EwM m b -> EwM m c # (>) :: EwM m a -> EwM m b -> EwM m b # (<*) :: EwM m a -> EwM m b -> EwM m a #
Functor m => Functor (EwM m) Source #
Instance details Defined in GHC.Driver.CmdLine Methods fmap :: (a -> b) -> EwM m a -> EwM m b # (<$) :: a -> EwM m b -> EwM m a #
Monad m => Monad (EwM m) Source #
Instance details Defined in GHC.Driver.CmdLine Methods (>>=) :: EwM m a -> (a -> EwM m b) -> EwM m b # (>>) :: EwM m a -> EwM m b -> EwM m b # return :: a -> EwM m a #

runEwM :: EwM m a -> m (Errs, Warns, a) Source #

addErr :: Monad m => String -> EwM m () Source #

addWarn :: Monad m => String -> EwM m () Source #

addFlagWarn :: Monad m => DiagnosticReason -> String -> EwM m () Source #

getArg :: Monad m => EwM m String Source #

getCurLoc :: Monad m => EwM m SrcSpan Source #

liftEwM :: Monad m => m a -> EwM m a Source #