Safe Haskell	None
Language	GHC2021

GHC.Types.SourceText

Contents

Literals

Description

Source text

Keeping Source Text for source to source conversions

Synopsis

data SourceText
- = SourceText FastString
- | NoSourceText
pprWithSourceText :: SourceText -> SDoc -> SDoc
data IntegralLit = IL {
- il_text :: SourceText
- il_neg :: Bool
- il_value :: Integer
}
data FractionalLit = FL {
- fl_text :: SourceText
- fl_neg :: Bool
- fl_signi :: Rational
- fl_exp :: Integer
- fl_exp_base :: FractionalExponentBase
}
data StringLiteral = StringLiteral {
- sl_st :: SourceText
- sl_fs :: FastString
- sl_tc :: Maybe NoCommentsLocation
}
negateIntegralLit :: IntegralLit -> IntegralLit
negateFractionalLit :: FractionalLit -> FractionalLit
mkIntegralLit :: Integral a => a -> IntegralLit
mkTHFractionalLit :: Rational -> FractionalLit
rationalFromFractionalLit :: FractionalLit -> Rational
integralFractionalLit :: Bool -> Integer -> FractionalLit
mkSourceFractionalLit :: String -> Bool -> Integer -> Integer -> FractionalExponentBase -> FractionalLit
data FractionalExponentBase
- = Base2
- | Base10
fractionalLitFromRational :: Rational -> FractionalLit
mkFractionalLit :: SourceText -> Bool -> Rational -> Integer -> FractionalExponentBase -> FractionalLit

Documentation

data SourceText Source #

Constructors

SourceText FastString
NoSourceText	For when code is generated, e.g. TH, deriving. The pretty printer will then make its own representation of the item.

Instances

Instances details

NFData SourceText Source #
Instance details Defined in GHC.Types.SourceText Methods rnf :: SourceText -> () Source #
Binary SourceText Source #
Instance details Defined in GHC.Types.SourceText Methods put_ :: BinHandle -> SourceText -> IO () Source # put :: BinHandle -> SourceText -> IO (Bin SourceText) Source # get :: BinHandle -> IO SourceText Source #
Outputable SourceText Source #
Instance details Defined in GHC.Types.SourceText Methods ppr :: SourceText -> SDoc Source #
Data SourceText Source #
Instance details Defined in GHC.Types.SourceText Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> SourceText -> c SourceText # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c SourceText # toConstr :: SourceText -> Constr # dataTypeOf :: SourceText -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c SourceText) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c SourceText) # gmapT :: (forall b. Data b => b -> b) -> SourceText -> SourceText # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> SourceText -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> SourceText -> r # gmapQ :: (forall d. Data d => d -> u) -> SourceText -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> SourceText -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> SourceText -> m SourceText # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> SourceText -> m SourceText # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> SourceText -> m SourceText #
Show SourceText Source #
Instance details Defined in GHC.Types.SourceText Methods showsPrec :: Int -> SourceText -> ShowS # show :: SourceText -> String # showList :: [SourceText] -> ShowS #
Eq SourceText Source #
Instance details Defined in GHC.Types.SourceText Methods (==) :: SourceText -> SourceText -> Bool # (/=) :: SourceText -> SourceText -> Bool #
type Anno (SourceText, RuleName) Source #
Instance details Defined in GHC.Hs.Decls type Anno (SourceText, RuleName) = EpAnnCO

pprWithSourceText :: SourceText -> SDoc -> SDoc Source #

Special combinator for showing string literals.

Literals

data IntegralLit Source #

Integral Literal

Used (instead of Integer) to represent negative zegative zero which is required for NegativeLiterals extension to correctly parse `-0::Double` as negative zero. See also #13211.

Constructors

IL
Fields il_text :: SourceText il_neg :: Bool il_value :: Integer

Instances

Instances details

Outputable IntegralLit Source #
Instance details Defined in GHC.Types.SourceText Methods ppr :: IntegralLit -> SDoc Source #
Data IntegralLit Source #
Instance details Defined in GHC.Types.SourceText Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> IntegralLit -> c IntegralLit # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c IntegralLit # toConstr :: IntegralLit -> Constr # dataTypeOf :: IntegralLit -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c IntegralLit) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c IntegralLit) # gmapT :: (forall b. Data b => b -> b) -> IntegralLit -> IntegralLit # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> IntegralLit -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> IntegralLit -> r # gmapQ :: (forall d. Data d => d -> u) -> IntegralLit -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> IntegralLit -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> IntegralLit -> m IntegralLit # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> IntegralLit -> m IntegralLit # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> IntegralLit -> m IntegralLit #
Show IntegralLit Source #
Instance details Defined in GHC.Types.SourceText Methods showsPrec :: Int -> IntegralLit -> ShowS # show :: IntegralLit -> String # showList :: [IntegralLit] -> ShowS #
Eq IntegralLit Source #
Instance details Defined in GHC.Types.SourceText Methods (==) :: IntegralLit -> IntegralLit -> Bool # (/=) :: IntegralLit -> IntegralLit -> Bool #
Ord IntegralLit Source #
Instance details Defined in GHC.Types.SourceText Methods compare :: IntegralLit -> IntegralLit -> Ordering # (<) :: IntegralLit -> IntegralLit -> Bool # (<=) :: IntegralLit -> IntegralLit -> Bool # (>) :: IntegralLit -> IntegralLit -> Bool # (>=) :: IntegralLit -> IntegralLit -> Bool # max :: IntegralLit -> IntegralLit -> IntegralLit # min :: IntegralLit -> IntegralLit -> IntegralLit #

data FractionalLit Source #

Fractional Literal

Used (instead of Rational) to represent exactly the floating point literal that we encountered in the user's source program. This allows us to pretty-print exactly what the user wrote, which is important e.g. for floating point numbers that can't represented as Doubles (we used to via Double for pretty-printing). See also #2245. Note [FractionalLit representation] in GHC.HsToCore.Match.Literal The actual value then is: sign * fl_signi * (fl_exp_base^fl_exp) where sign = if fl_neg then (-1) else 1

For example FL { fl_neg = True, fl_signi = 5.3, fl_exp = 4, fl_exp_base = Base10 } denotes -5300

Constructors

FL
Fields fl_text :: SourceText How the value was written in the source fl_neg :: Bool fl_signi :: Rational fl_exp :: Integer fl_exp_base :: FractionalExponentBase

Instances

Instances details

Outputable FractionalLit Source #
Instance details Defined in GHC.Types.SourceText Methods ppr :: FractionalLit -> SDoc Source #
Data FractionalLit Source #
Instance details Defined in GHC.Types.SourceText Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> FractionalLit -> c FractionalLit # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c FractionalLit # toConstr :: FractionalLit -> Constr # dataTypeOf :: FractionalLit -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c FractionalLit) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c FractionalLit) # gmapT :: (forall b. Data b => b -> b) -> FractionalLit -> FractionalLit # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> FractionalLit -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> FractionalLit -> r # gmapQ :: (forall d. Data d => d -> u) -> FractionalLit -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> FractionalLit -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> FractionalLit -> m FractionalLit # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> FractionalLit -> m FractionalLit # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> FractionalLit -> m FractionalLit #
Show FractionalLit Source #
Instance details Defined in GHC.Types.SourceText Methods showsPrec :: Int -> FractionalLit -> ShowS # show :: FractionalLit -> String # showList :: [FractionalLit] -> ShowS #
Eq FractionalLit Source #	Be wary of using this instance to compare for equal values when exponents are large. The same value expressed in different syntactic form won't compare as equal when any of the exponents is >= 100.
Instance details Defined in GHC.Types.SourceText Methods (==) :: FractionalLit -> FractionalLit -> Bool # (/=) :: FractionalLit -> FractionalLit -> Bool #
Ord FractionalLit Source #	Be wary of using this instance to compare for equal values when exponents are large. The same value expressed in different syntactic form won't compare as equal when any of the exponents is >= 100.
Instance details Defined in GHC.Types.SourceText Methods compare :: FractionalLit -> FractionalLit -> Ordering # (<) :: FractionalLit -> FractionalLit -> Bool # (<=) :: FractionalLit -> FractionalLit -> Bool # (>) :: FractionalLit -> FractionalLit -> Bool # (>=) :: FractionalLit -> FractionalLit -> Bool # max :: FractionalLit -> FractionalLit -> FractionalLit # min :: FractionalLit -> FractionalLit -> FractionalLit #

data StringLiteral Source #

A String Literal in the source, including its original raw format for use by source to source manipulation tools.

Constructors

StringLiteral
Fields sl_st :: SourceText sl_fs :: FastString sl_tc :: Maybe NoCommentsLocation

Instances

Instances details

Outputable StringLiteral Source #
Instance details Defined in GHC.Types.SourceText Methods ppr :: StringLiteral -> SDoc Source #
Data StringLiteral Source #
Instance details Defined in GHC.Types.SourceText Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> StringLiteral -> c StringLiteral # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c StringLiteral # toConstr :: StringLiteral -> Constr # dataTypeOf :: StringLiteral -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c StringLiteral) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c StringLiteral) # gmapT :: (forall b. Data b => b -> b) -> StringLiteral -> StringLiteral # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> StringLiteral -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> StringLiteral -> r # gmapQ :: (forall d. Data d => d -> u) -> StringLiteral -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> StringLiteral -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> StringLiteral -> m StringLiteral # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> StringLiteral -> m StringLiteral # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> StringLiteral -> m StringLiteral #
Eq StringLiteral Source #
Instance details Defined in GHC.Types.SourceText Methods (==) :: StringLiteral -> StringLiteral -> Bool # (/=) :: StringLiteral -> StringLiteral -> Bool #
type Anno StringLiteral Source #
Instance details Defined in GHC.Hs.Binds type Anno StringLiteral = EpAnnCO

negateIntegralLit :: IntegralLit -> IntegralLit Source #

negateFractionalLit :: FractionalLit -> FractionalLit Source #

mkIntegralLit :: Integral a => a -> IntegralLit Source #

mkTHFractionalLit :: Rational -> FractionalLit Source #

rationalFromFractionalLit :: FractionalLit -> Rational Source #

integralFractionalLit :: Bool -> Integer -> FractionalLit Source #

The integer should already be negated if it's negative.

mkSourceFractionalLit :: String -> Bool -> Integer -> Integer -> FractionalExponentBase -> FractionalLit Source #

The arguments should already be negated if they are negative.

data FractionalExponentBase Source #

Constructors

Base2
Base10

Instances

Instances details

Data FractionalExponentBase Source #
Instance details Defined in GHC.Types.SourceText Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> FractionalExponentBase -> c FractionalExponentBase # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c FractionalExponentBase # toConstr :: FractionalExponentBase -> Constr # dataTypeOf :: FractionalExponentBase -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c FractionalExponentBase) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c FractionalExponentBase) # gmapT :: (forall b. Data b => b -> b) -> FractionalExponentBase -> FractionalExponentBase # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> FractionalExponentBase -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> FractionalExponentBase -> r # gmapQ :: (forall d. Data d => d -> u) -> FractionalExponentBase -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> FractionalExponentBase -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> FractionalExponentBase -> m FractionalExponentBase # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> FractionalExponentBase -> m FractionalExponentBase # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> FractionalExponentBase -> m FractionalExponentBase #
Show FractionalExponentBase Source #
Instance details Defined in GHC.Types.SourceText Methods showsPrec :: Int -> FractionalExponentBase -> ShowS # show :: FractionalExponentBase -> String # showList :: [FractionalExponentBase] -> ShowS #
Eq FractionalExponentBase Source #
Instance details Defined in GHC.Types.SourceText Methods (==) :: FractionalExponentBase -> FractionalExponentBase -> Bool # (/=) :: FractionalExponentBase -> FractionalExponentBase -> Bool #
Ord FractionalExponentBase Source #
Instance details Defined in GHC.Types.SourceText Methods compare :: FractionalExponentBase -> FractionalExponentBase -> Ordering # (<) :: FractionalExponentBase -> FractionalExponentBase -> Bool # (<=) :: FractionalExponentBase -> FractionalExponentBase -> Bool # (>) :: FractionalExponentBase -> FractionalExponentBase -> Bool # (>=) :: FractionalExponentBase -> FractionalExponentBase -> Bool # max :: FractionalExponentBase -> FractionalExponentBase -> FractionalExponentBase # min :: FractionalExponentBase -> FractionalExponentBase -> FractionalExponentBase #

fractionalLitFromRational :: Rational -> FractionalLit Source #

mkFractionalLit :: SourceText -> Bool -> Rational -> Integer -> FractionalExponentBase -> FractionalLit Source #