GHC.Hs.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 (XParPat p) (LPat p)

Parenthesised pattern See Note [Parens in HsSyn] in GHC.Hs.Expr ^ - 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 SumWidth

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

• AnnKeywordId : AnnRarrow

Fields

• (XViewPat p)
• (LHsExpr p)
• (LPat p)

  View Pattern

SplicePat

• AnnKeywordId : AnnOpen '$(' AnnClose ')'

Fields

• (XSplicePat p)
• (HsUntypedSplice p)

  Splice Pattern (Includes quasi-quotes)

LitPat (XLitPat p) (HsLit p)

Literal Pattern Used for *non-overloaded* literal patterns: Int#, Char#, 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

• AnnKeywordId : AnnDcolon

Fields

• (XSigPat p)
• (LPat p)
• (HsPatSigType (NoGhcTc p))

  Pattern with a type signature

EmbTyPat (XEmbTyPat p) (HsTyPat (NoGhcTc p))

InvisPat (XInvisPat p) (HsTyPat (NoGhcTc p))

XPat !(XXPat p)

Instances

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)

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 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)

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)

isInvisArgPat :: Pat p -> Bool

isVisArgPat :: Pat p -> Bool

data EpAnnSumPat

Constructors

EpAnnSumPat

Fields

• sumPatParens :: [AddEpAnn]
• sumPatVbarsBefore :: [EpaLocation]
• sumPatVbarsAfter :: [EpaLocation]

Instances

Data EpAnnSumPat

Defined in GHC.Hs.Pat

Methods

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

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

toConstr :: EpAnnSumPat -> Constr

dataTypeOf :: EpAnnSumPat -> DataType

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

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

gmapT :: (forall b. Data b => b -> b) -> EpAnnSumPat -> EpAnnSumPat

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

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

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

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

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

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

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

NoAnn EpAnnSumPat

Defined in GHC.Hs.Pat

Methods

noAnn :: EpAnnSumPat

data ConPatTc

This is the extension field for ConPat, added after typechecking It adds quite a few extra fields, to support elaboration of pattern matching.

Constructors

ConPatTc

Fields

• cpt_arg_tys :: [Type]

  The universal arg types 1-1 with the universal tyvars of the constructor/pattern synonym Use (conLikeResTy pat_con cpt_arg_tys) to get the type of the pattern

• cpt_tvs :: [TyVar]

  Existentially bound type variables in correctly-scoped order e.g. [k:* x:k]

• cpt_dicts :: [EvVar]

  Ditto *coercion variables* and *dictionaries* One reason for putting coercion variable here I think is to ensure their kinds are zonked

• cpt_binds :: TcEvBinds

  Bindings involving those dictionaries

• cpt_wrap :: HsWrapper

  Extra wrapper to pass to the matcher Only relevant for pattern-synonyms; ignored for data cons

Instances

Data ConPatTc

Defined in GHC.Hs.Instances

Methods

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

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

toConstr :: ConPatTc -> Constr

dataTypeOf :: ConPatTc -> DataType

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

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

gmapT :: (forall b. Data b => b -> b) -> ConPatTc -> ConPatTc

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

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

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

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

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

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

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

type family ConLikeP x

Instances

type ConLikeP GhcPs

Defined in GHC.Hs.Pat

type ConLikeP GhcPs = RdrName

type ConLikeP GhcRn

Defined in GHC.Hs.Pat

type ConLikeP GhcRn = Name

type ConLikeP GhcTc

Defined in GHC.Hs.Pat

type ConLikeP GhcTc = ConLike

data HsPatExpansion a b

Constructors

HsPatExpanded a b

Instances

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

Defined in GHC.Hs.Pat

Methods

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

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

toConstr :: HsPatExpansion a b -> Constr

dataTypeOf :: HsPatExpansion a b -> DataType

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

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

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

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

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

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

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

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

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

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

(Outputable a, Outputable b) => Outputable (HsPatExpansion a b)

Defined in GHC.Hs.Pat

Methods

ppr :: HsPatExpansion a b -> SDoc

data XXPatGhcTc

Extension constructor for Pat, added after typechecking.

Constructors

CoPat

Coercion Pattern (translation only)

During desugaring a (CoPat co pat) turns into a cast with co on the scrutinee, followed by a match on pat.

Fields

• co_cpt_wrap :: HsWrapper

  Coercion Pattern If co :: t1 ~ t2, p :: t2, then (CoPat co p) :: t1

• co_pat_inner :: Pat GhcTc

  Why not LPat? Ans: existing locn will do

• co_pat_ty :: Type

  Type of whole pattern, t1

ExpansionPat (Pat GhcRn) (Pat GhcTc)

Pattern expansion: original pattern, and desugared pattern, for RebindableSyntax and other overloaded syntax such as OverloadedLists. See Note [Rebindable syntax and XXExprGhcRn].

Instances

Data XXPatGhcTc

Defined in GHC.Hs.Instances

Methods

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

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

toConstr :: XXPatGhcTc -> Constr

dataTypeOf :: XXPatGhcTc -> DataType

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

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

gmapT :: (forall b. Data b => b -> b) -> XXPatGhcTc -> XXPatGhcTc

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

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

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

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

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

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

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

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

Haskell Constructor Pattern Details

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

hsConPatTyArgs :: forall p. HsConPatDetails p -> [HsConPatTyArg (NoGhcTc p)]

data HsConPatTyArg p

Type argument in a data constructor pattern, e.g. the @a in f (Just @a x) = ....

Constructors

HsConPatTyArg !(XConPatTyArg p) (HsTyPat p)

Instances

Data (HsConPatTyArg GhcPs)

Defined in GHC.Hs.Instances

Methods

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

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

toConstr :: HsConPatTyArg GhcPs -> Constr

dataTypeOf :: HsConPatTyArg GhcPs -> DataType

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

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

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

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

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

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

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

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

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

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

Data (HsConPatTyArg GhcRn)

Defined in GHC.Hs.Instances

Methods

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

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

toConstr :: HsConPatTyArg GhcRn -> Constr

dataTypeOf :: HsConPatTyArg GhcRn -> DataType

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

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

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

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

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

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

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

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

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

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

Data (HsConPatTyArg GhcTc)

Defined in GHC.Hs.Instances

Methods

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

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

toConstr :: HsConPatTyArg GhcTc -> Constr

dataTypeOf :: HsConPatTyArg GhcTc -> DataType

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

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

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

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

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

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

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

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

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

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

Outputable (HsTyPat p) => Outputable (HsConPatTyArg p)

Defined in GHC.Hs.Pat

Methods

ppr :: HsConPatTyArg p -> SDoc

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 (XRec p RecFieldsDotDot)

Instances

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)

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 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)

(Outputable arg, Outputable (XRec p (HsRecField p arg)), XRec p RecFieldsDotDot ~ LocatedE RecFieldsDotDot) => Outputable (HsRecFields p arg)

Defined in GHC.Hs.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

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)

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

(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 GHC.Hs.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 q = HsFieldBind (LAmbiguousFieldOcc p) (LHsExpr q)

Haskell Record Update Field

type LHsRecUpdField p q = XRec p (HsRecUpdField p q)

Located Haskell Record Update Field

newtype RecFieldsDotDot

Newtype to be able to have a specific XRec instance for the Int in rec_dotdot

Constructors

RecFieldsDotDot

Fields

• unRecFieldsDotDot :: Int

Instances

Data RecFieldsDotDot

Defined in Language.Haskell.Syntax.Pat

Methods

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

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

toConstr :: RecFieldsDotDot -> Constr

dataTypeOf :: RecFieldsDotDot -> DataType

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

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

gmapT :: (forall b. Data b => b -> b) -> RecFieldsDotDot -> RecFieldsDotDot

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

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

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

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

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

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

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

Eq RecFieldsDotDot

Defined in Language.Haskell.Syntax.Pat

Methods

(==) :: RecFieldsDotDot -> RecFieldsDotDot -> Bool

(/=) :: RecFieldsDotDot -> RecFieldsDotDot -> Bool

Ord RecFieldsDotDot

Defined in Language.Haskell.Syntax.Pat

Methods

compare :: RecFieldsDotDot -> RecFieldsDotDot -> Ordering

(<) :: RecFieldsDotDot -> RecFieldsDotDot -> Bool

(<=) :: RecFieldsDotDot -> RecFieldsDotDot -> Bool

(>) :: RecFieldsDotDot -> RecFieldsDotDot -> Bool

(>=) :: RecFieldsDotDot -> RecFieldsDotDot -> Bool

max :: RecFieldsDotDot -> RecFieldsDotDot -> RecFieldsDotDot

min :: RecFieldsDotDot -> RecFieldsDotDot -> RecFieldsDotDot

type Anno RecFieldsDotDot

Defined in GHC.Hs.Pat

type Anno RecFieldsDotDot = EpaLocation

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

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

hsRecFieldId :: HsRecField GhcTc arg -> Id

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

hsRecUpdFieldId :: HsFieldBind (LAmbiguousFieldOcc GhcTc) arg -> Located Id

hsRecUpdFieldOcc :: HsFieldBind (LAmbiguousFieldOcc GhcTc) arg -> LFieldOcc GhcTc

hsRecUpdFieldRdr :: HsRecUpdField (GhcPass p) q -> Located RdrName

mkPrefixConPat :: DataCon -> [LPat GhcTc] -> [Type] -> LPat GhcTc

mkCharLitPat :: SourceText -> Char -> LPat GhcTc

mkNilPat :: Type -> LPat GhcTc

isSimplePat :: LPat (GhcPass x) -> Maybe (IdP (GhcPass x))

Is the pattern any of combination of:

• (pat)
• pat :: Type
• ~pat
• !pat
• x (variable)

isPatSyn :: LPat GhcTc -> Bool

looksLazyPatBind :: HsBind GhcTc -> Bool

isBangedLPat :: LPat (GhcPass p) -> Bool

gParPat :: forall p. IsPass p => LPat (GhcPass p) -> Pat (GhcPass p)

Parenthesize a pattern without token information

patNeedsParens :: forall p. IsPass p => PprPrec -> Pat (GhcPass p) -> Bool

patNeedsParens p pat returns True if the pattern pat needs parentheses under precedence p.

parenthesizePat :: IsPass p => PprPrec -> LPat (GhcPass p) -> LPat (GhcPass p)

parenthesizePat p pat checks if patNeedsParens p pat is true, and if so, surrounds pat with a ParPat. Otherwise, it simply returns pat.

isIrrefutableHsPatHelper

Arguments

:: forall p. OutputableBndrId p

=> Bool

Are we in a -XStrict context? See Note [-XStrict and irrefutability]

-> LPat (GhcPass p)

-> Bool

(isIrrefutableHsPat p) is true if matching against p cannot fail in the sense of falling through to the next pattern. (NB: this is not quite the same as the (silly) defn in 3.17.2 of the Haskell 98 report.)

WARNING: isIrrefutableHsPat returns False if it's in doubt. Specifically on a ConPatIn, which is what it sees for a (LPat Name) in the renamer, it doesn't know the size of the constructor family, so it returns False. Result: only tuple patterns are considered irrefutable at the renamer stage.

But if it returns True, the pattern is definitely irrefutable Instantiates isIrrefutableHsPatHelperM with a trivial identity monad

isIrrefutableHsPatHelperM :: forall m p. (Monad m, OutputableBndrId p) => LPatIrrefutableCheck m (GhcPass p)

isBoringHsPat :: forall p. OutputableBndrId p => LPat (GhcPass p) -> Bool

Is this pattern boring from the perspective of pattern-match checking, i.e. introduces no new pieces of long-distance information which could influence pattern-match checking?

See Note [Boring patterns].

collectEvVarsPat :: Pat GhcTc -> Bag EvVar

collectEvVarsPats :: [Pat GhcTc] -> Bag EvVar

pprParendLPat :: OutputableBndrId p => PprPrec -> LPat (GhcPass p) -> SDoc

pprConArgs :: (OutputableBndrId p, Outputable (Anno (IdGhcP p))) => HsConPatDetails (GhcPass p) -> SDoc

pprLPat :: OutputableBndrId p => LPat (GhcPass p) -> SDoc

Orphan instances

Outputable (HsTyPat p) => Outputable (HsConPatTyArg p)

Methods

ppr :: HsConPatTyArg p -> SDoc

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

Methods

ppr :: Pat (GhcPass p) -> SDoc

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

Methods

ppr :: HsFieldBind p arg -> SDoc

(Outputable arg, Outputable (XRec p (HsRecField p arg)), XRec p RecFieldsDotDot ~ LocatedE RecFieldsDotDot) => Outputable (HsRecFields p arg)

Methods

ppr :: HsRecFields p arg -> SDoc