Language.Haskell.Syntax.Pat

Documentation

data Pat p

Pattern

• AnnKeywordId : AnnBang

Constructors

WildPat (XWildPat p)

Wildcard Pattern The sole reason for a type on a WildPat is to support hsPatType :: Pat Id -> Type

VarPat (XVarPat p) (LIdP p)

Variable Pattern

LazyPat (XLazyPat p) (LPat p)

Lazy Pattern ^ - AnnKeywordId : AnnTilde

AsPat (XAsPat p) (LIdP p) (LPat p)

As pattern ^ - AnnKeywordId : AnnAt

ParPat

Fields

• (XParPat p)
• !(LHsToken "(" p)
• (LPat p)

  Parenthesised pattern

• !(LHsToken ")" p)
  • AnnKeywordId : AnnOpen '(', AnnClose ')'

BangPat (XBangPat p) (LPat p)

Bang pattern ^ - AnnKeywordId : AnnBang

ListPat (XListPat p) [LPat p]

Syntactic List

• AnnKeywordId : AnnOpen '[', AnnClose ']'

TuplePat (XTuplePat p) [LPat p] Boxity

Tuple sub-patterns

• AnnKeywordId : AnnOpen '(' or '(#', AnnClose ')' or '#)'

SumPat (XSumPat p) (LPat p) ConTag Arity

Anonymous sum pattern

• AnnKeywordId : AnnOpen '(#', AnnClose '#)'

ConPat

Constructor Pattern

Fields

• pat_con_ext :: XConPat p
• pat_con :: XRec p (ConLikeP p)
• pat_args :: HsConPatDetails p

ViewPat (XViewPat p) (LHsExpr p) (LPat p)

View Pattern

SplicePat (XSplicePat p) (HsSplice p)

Splice Pattern (Includes quasi-quotes)

LitPat (XLitPat p) (HsLit p)

Literal Pattern Used for *non-overloaded* literal patterns: Int, Int, Char, String, etc.

NPat (XNPat p) (XRec p (HsOverLit p)) (Maybe (SyntaxExpr p)) (SyntaxExpr p)

Natural Pattern

• AnnKeywordId : AnnVal +

NPlusKPat (XNPlusKPat p) (LIdP p) (XRec p (HsOverLit p)) (HsOverLit p) (SyntaxExpr p) (SyntaxExpr p)

n+k pattern

SigPat (XSigPat p) (LPat p) (HsPatSigType (NoGhcTc p))

Pattern with a type signature

XPat !(XXPat p)

Instances

Data (Pat GhcTc)

Defined in GHC.Hs.Instances

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Pat GhcTc -> c (Pat GhcTc)

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Pat GhcTc)

toConstr :: Pat GhcTc -> Constr

dataTypeOf :: Pat GhcTc -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Pat GhcTc))

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Pat GhcTc))

gmapT :: (forall b. Data b => b -> b) -> Pat GhcTc -> Pat GhcTc

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Pat GhcTc -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Pat GhcTc -> r

gmapQ :: (forall d. Data d => d -> u) -> Pat GhcTc -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> Pat GhcTc -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Pat GhcTc -> m (Pat GhcTc)

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Pat GhcTc -> m (Pat GhcTc)

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Pat GhcTc -> m (Pat GhcTc)

Data (Pat GhcRn)

Defined in GHC.Hs.Instances

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Pat GhcRn -> c (Pat GhcRn)

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Pat GhcRn)

toConstr :: Pat GhcRn -> Constr

dataTypeOf :: Pat GhcRn -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Pat GhcRn))

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Pat GhcRn))

gmapT :: (forall b. Data b => b -> b) -> Pat GhcRn -> Pat GhcRn

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Pat GhcRn -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Pat GhcRn -> r

gmapQ :: (forall d. Data d => d -> u) -> Pat GhcRn -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> Pat GhcRn -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Pat GhcRn -> m (Pat GhcRn)

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Pat GhcRn -> m (Pat GhcRn)

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Pat GhcRn -> m (Pat GhcRn)

Data (Pat GhcPs)

Defined in GHC.Hs.Instances

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Pat GhcPs -> c (Pat GhcPs)

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Pat GhcPs)

toConstr :: Pat GhcPs -> Constr

dataTypeOf :: Pat GhcPs -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Pat GhcPs))

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Pat GhcPs))

gmapT :: (forall b. Data b => b -> b) -> Pat GhcPs -> Pat GhcPs

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Pat GhcPs -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Pat GhcPs -> r

gmapQ :: (forall d. Data d => d -> u) -> Pat GhcPs -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> Pat GhcPs -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Pat GhcPs -> m (Pat GhcPs)

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Pat GhcPs -> m (Pat GhcPs)

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Pat GhcPs -> m (Pat GhcPs)

OutputableBndrId p => Outputable (Pat (GhcPass p))

Defined in GHC.Hs.Pat

Methods

ppr :: Pat (GhcPass p) -> SDoc

type Anno (Pat (GhcPass p))

Defined in GHC.Hs.Pat

type Anno (Pat (GhcPass p)) = SrcSpanAnnA

type LPat p = XRec p (Pat p)

type family ConLikeP x

Instances

type ConLikeP GhcTc

Defined in GHC.Hs.Pat

type ConLikeP GhcTc = ConLike

type ConLikeP GhcRn

Defined in GHC.Hs.Pat

type ConLikeP GhcRn = Name

type ConLikeP GhcPs

Defined in GHC.Hs.Pat

type ConLikeP GhcPs = RdrName

type HsConPatDetails p = HsConDetails (HsPatSigType (NoGhcTc p)) (LPat p) (HsRecFields p (LPat p))

Haskell Constructor Pattern Details

hsConPatArgs :: forall p. UnXRec p => HsConPatDetails p -> [LPat p]

data HsRecFields p arg

Haskell Record Fields

HsRecFields is used only for patterns and expressions (not data type declarations)

Constructors

HsRecFields

Fields

• rec_flds :: [LHsRecField p arg]
• rec_dotdot :: Maybe (Located Int)

Instances

Data body => Data (HsRecFields GhcTc body)

Defined in GHC.Hs.Instances

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> HsRecFields GhcTc body -> c (HsRecFields GhcTc body)

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (HsRecFields GhcTc body)

toConstr :: HsRecFields GhcTc body -> Constr

dataTypeOf :: HsRecFields GhcTc body -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (HsRecFields GhcTc body))

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (HsRecFields GhcTc body))

gmapT :: (forall b. Data b => b -> b) -> HsRecFields GhcTc body -> HsRecFields GhcTc body

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> HsRecFields GhcTc body -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> HsRecFields GhcTc body -> r

gmapQ :: (forall d. Data d => d -> u) -> HsRecFields GhcTc body -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> HsRecFields GhcTc body -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> HsRecFields GhcTc body -> m (HsRecFields GhcTc body)

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> HsRecFields GhcTc body -> m (HsRecFields GhcTc body)

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> HsRecFields GhcTc body -> m (HsRecFields GhcTc body)

Data body => Data (HsRecFields GhcRn body)

Defined in GHC.Hs.Instances

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> HsRecFields GhcRn body -> c (HsRecFields GhcRn body)

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (HsRecFields GhcRn body)

toConstr :: HsRecFields GhcRn body -> Constr

dataTypeOf :: HsRecFields GhcRn body -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (HsRecFields GhcRn body))

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (HsRecFields GhcRn body))

gmapT :: (forall b. Data b => b -> b) -> HsRecFields GhcRn body -> HsRecFields GhcRn body

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> HsRecFields GhcRn body -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> HsRecFields GhcRn body -> r

gmapQ :: (forall d. Data d => d -> u) -> HsRecFields GhcRn body -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> HsRecFields GhcRn body -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> HsRecFields GhcRn body -> m (HsRecFields GhcRn body)

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> HsRecFields GhcRn body -> m (HsRecFields GhcRn body)

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> HsRecFields GhcRn body -> m (HsRecFields GhcRn body)

Data body => Data (HsRecFields GhcPs body)

Defined in GHC.Hs.Instances

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> HsRecFields GhcPs body -> c (HsRecFields GhcPs body)

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (HsRecFields GhcPs body)

toConstr :: HsRecFields GhcPs body -> Constr

dataTypeOf :: HsRecFields GhcPs body -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (HsRecFields GhcPs body))

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (HsRecFields GhcPs body))

gmapT :: (forall b. Data b => b -> b) -> HsRecFields GhcPs body -> HsRecFields GhcPs body

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> HsRecFields GhcPs body -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> HsRecFields GhcPs body -> r

gmapQ :: (forall d. Data d => d -> u) -> HsRecFields GhcPs body -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> HsRecFields GhcPs body -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> HsRecFields GhcPs body -> m (HsRecFields GhcPs body)

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> HsRecFields GhcPs body -> m (HsRecFields GhcPs body)

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> HsRecFields GhcPs body -> m (HsRecFields GhcPs body)

(Outputable arg, Outputable (XRec p (HsRecField p arg))) => Outputable (HsRecFields p arg)

Defined in Language.Haskell.Syntax.Pat

Methods

ppr :: HsRecFields p arg -> SDoc

data HsFieldBind lhs rhs

Haskell Field Binding

• AnnKeywordId : AnnEqual,

For details on above see Note [exact print annotations] in GHC.Parser.Annotation

Constructors

HsFieldBind

Fields

• hfbAnn :: XHsFieldBind lhs
• hfbLHS :: lhs
• hfbRHS :: rhs

  Filled in by renamer when punning

• hfbPun :: Bool

  Note [Punning]

Instances

Functor (HsFieldBind lhs)

Defined in Language.Haskell.Syntax.Pat

Methods

fmap :: (a -> b) -> HsFieldBind lhs a -> HsFieldBind lhs b

(<$) :: a -> HsFieldBind lhs b -> HsFieldBind lhs a

Foldable (HsFieldBind lhs)

Defined in Language.Haskell.Syntax.Pat

Methods

fold :: Monoid m => HsFieldBind lhs m -> m

foldMap :: Monoid m => (a -> m) -> HsFieldBind lhs a -> m

foldMap' :: Monoid m => (a -> m) -> HsFieldBind lhs a -> m

foldr :: (a -> b -> b) -> b -> HsFieldBind lhs a -> b

foldr' :: (a -> b -> b) -> b -> HsFieldBind lhs a -> b

foldl :: (b -> a -> b) -> b -> HsFieldBind lhs a -> b

foldl' :: (b -> a -> b) -> b -> HsFieldBind lhs a -> b

foldr1 :: (a -> a -> a) -> HsFieldBind lhs a -> a

foldl1 :: (a -> a -> a) -> HsFieldBind lhs a -> a

toList :: HsFieldBind lhs a -> [a]

null :: HsFieldBind lhs a -> Bool

length :: HsFieldBind lhs a -> Int

elem :: Eq a => a -> HsFieldBind lhs a -> Bool

maximum :: Ord a => HsFieldBind lhs a -> a

minimum :: Ord a => HsFieldBind lhs a -> a

sum :: Num a => HsFieldBind lhs a -> a

product :: Num a => HsFieldBind lhs a -> a

Traversable (HsFieldBind lhs)

Defined in Language.Haskell.Syntax.Pat

Methods

traverse :: Applicative f => (a -> f b) -> HsFieldBind lhs a -> f (HsFieldBind lhs b)

sequenceA :: Applicative f => HsFieldBind lhs (f a) -> f (HsFieldBind lhs a)

mapM :: Monad m => (a -> m b) -> HsFieldBind lhs a -> m (HsFieldBind lhs b)

sequence :: Monad m => HsFieldBind lhs (m a) -> m (HsFieldBind lhs a)

(Data a, Data b) => Data (HsFieldBind a b)

Defined in GHC.Hs.Instances

Methods

gfoldl :: (forall d b0. Data d => c (d -> b0) -> d -> c b0) -> (forall g. g -> c g) -> HsFieldBind a b -> c (HsFieldBind a b)

gunfold :: (forall b0 r. Data b0 => c (b0 -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (HsFieldBind a b)

toConstr :: HsFieldBind a b -> Constr

dataTypeOf :: HsFieldBind a b -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (HsFieldBind a b))

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (HsFieldBind a b))

gmapT :: (forall b0. Data b0 => b0 -> b0) -> HsFieldBind a b -> HsFieldBind a b

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> HsFieldBind a b -> r

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> HsFieldBind a b -> r

gmapQ :: (forall d. Data d => d -> u) -> HsFieldBind a b -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> HsFieldBind a b -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> HsFieldBind a b -> m (HsFieldBind a b)

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> HsFieldBind a b -> m (HsFieldBind a b)

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> HsFieldBind a b -> m (HsFieldBind a b)

(Outputable p, OutputableBndr p, Outputable arg) => Outputable (HsFieldBind p arg)

Defined in Language.Haskell.Syntax.Pat

Methods

ppr :: HsFieldBind p arg -> SDoc

type Anno (HsFieldBind lhs rhs)

Defined in GHC.Hs.Pat

type Anno (HsFieldBind lhs rhs) = SrcSpanAnnA

type LHsFieldBind p id arg = XRec p (HsFieldBind id arg)

Located Haskell Record Field

type HsRecField p arg = HsFieldBind (LFieldOcc p) arg

Haskell Record Field

type LHsRecField p arg = XRec p (HsRecField p arg)

Located Haskell Record Field

type HsRecUpdField p = HsFieldBind (LAmbiguousFieldOcc p) (LHsExpr p)

Haskell Record Update Field

type LHsRecUpdField p = XRec p (HsRecUpdField p)

Located Haskell Record Update Field

hsRecFields :: forall p arg. UnXRec p => HsRecFields p arg -> [XCFieldOcc p]

hsRecFieldSel :: forall p arg. UnXRec p => HsRecField p arg -> XCFieldOcc p

hsRecFieldsArgs :: forall p arg. UnXRec p => HsRecFields p arg -> [arg]