| Safe Haskell | None |
|---|---|
| Language | GHC2021 |
GHC.Hs.Pat
Contents
Synopsis
- data Pat p
- = WildPat (XWildPat p)
- | VarPat (XVarPat p) (LIdP p)
- | LazyPat (XLazyPat p) (LPat p)
- | AsPat (XAsPat p) (LIdP p) (LPat p)
- | ParPat (XParPat p) (LPat p)
- | BangPat (XBangPat p) (LPat p)
- | ListPat (XListPat p) [LPat p]
- | TuplePat (XTuplePat p) [LPat p] Boxity
- | OrPat (XOrPat p) (NonEmpty (LPat p))
- | SumPat (XSumPat p) (LPat p) ConTag SumWidth
- | ConPat {
- pat_con_ext :: XConPat p
- pat_con :: XRec p (ConLikeP p)
- pat_args :: HsConPatDetails p
- | ViewPat (XViewPat p) (LHsExpr p) (LPat p)
- | SplicePat (XSplicePat p) (HsUntypedSplice p)
- | LitPat (XLitPat p) (HsLit p)
- | NPat (XNPat p) (XRec p (HsOverLit p)) (Maybe (SyntaxExpr p)) (SyntaxExpr p)
- | NPlusKPat (XNPlusKPat p) (LIdP p) (XRec p (HsOverLit p)) (HsOverLit p) (SyntaxExpr p) (SyntaxExpr p)
- | SigPat (XSigPat p) (LPat p) (HsPatSigType (NoGhcTc p))
- | EmbTyPat (XEmbTyPat p) (HsTyPat (NoGhcTc p))
- | InvisPat (XInvisPat p) (HsTyPat (NoGhcTc p))
- | XPat !(XXPat p)
- type LPat p = XRec p (Pat p)
- isInvisArgPat :: Pat p -> Bool
- isVisArgPat :: Pat p -> Bool
- data EpAnnSumPat = EpAnnSumPat {
- sumPatParens :: (EpaLocation, EpaLocation)
- sumPatVbarsBefore :: [EpToken "|"]
- sumPatVbarsAfter :: [EpToken "|"]
- data ConPatTc = ConPatTc {}
- type family ConLikeP x
- data HsPatExpansion a b = HsPatExpanded a b
- data XXPatGhcTc
- type HsConPatDetails p = HsConDetails (HsConPatTyArg (NoGhcTc p)) (LPat p) (HsRecFields p (LPat p))
- hsConPatArgs :: UnXRec p => HsConPatDetails p -> [LPat p]
- hsConPatTyArgs :: HsConPatDetails p -> [HsConPatTyArg (NoGhcTc p)]
- data HsConPatTyArg p = HsConPatTyArg !(XConPatTyArg p) (HsTyPat p)
- data HsRecFields p arg = HsRecFields {
- rec_ext :: !(XHsRecFields p)
- rec_flds :: [LHsRecField p arg]
- rec_dotdot :: Maybe (XRec p RecFieldsDotDot)
- data HsFieldBind lhs rhs = HsFieldBind {}
- type LHsFieldBind p id arg = XRec p (HsFieldBind id arg)
- type HsRecField p arg = HsFieldBind (LFieldOcc p) arg
- type LHsRecField p arg = XRec p (HsRecField p arg)
- type HsRecUpdField p q = HsFieldBind (LFieldOcc p) (LHsExpr q)
- type LHsRecUpdField p q = XRec p (HsRecUpdField p q)
- newtype RecFieldsDotDot = RecFieldsDotDot {}
- hsRecFields :: UnXRec p => HsRecFields p arg -> [IdP p]
- hsRecFieldSel :: UnXRec p => HsRecField p arg -> IdP p
- hsRecFieldId :: HsRecField GhcTc arg -> Id
- hsRecFieldsArgs :: UnXRec p => HsRecFields p arg -> [arg]
- mkPrefixConPat :: DataCon -> [LPat GhcTc] -> [Type] -> LPat GhcTc
- mkCharLitPat :: SourceText -> Char -> LPat GhcTc
- mkNilPat :: Type -> LPat GhcTc
- isSimplePat :: forall (x :: Pass). LPat (GhcPass x) -> Maybe (IdP (GhcPass x))
- isPatSyn :: LPat GhcTc -> Bool
- looksLazyPatBind :: HsBind GhcTc -> Bool
- isBangedLPat :: forall (p :: Pass). LPat (GhcPass p) -> Bool
- gParPat :: forall (p :: Pass). IsPass p => LPat (GhcPass p) -> Pat (GhcPass p)
- patNeedsParens :: forall (p :: Pass). IsPass p => PprPrec -> Pat (GhcPass p) -> Bool
- parenthesizePat :: forall (p :: Pass). IsPass p => PprPrec -> LPat (GhcPass p) -> LPat (GhcPass p)
- isIrrefutableHsPat :: forall (p :: Pass). IsPass p => Bool -> (ConLikeP (GhcPass p) -> Bool) -> LPat (GhcPass p) -> Bool
- isBoringHsPat :: forall (p :: Pass). OutputableBndrId p => LPat (GhcPass p) -> Bool
- collectEvVarsPat :: Pat GhcTc -> Bag EvVar
- collectEvVarsPats :: [Pat GhcTc] -> Bag EvVar
- pprParendLPat :: forall (p :: Pass). OutputableBndrId p => PprPrec -> LPat (GhcPass p) -> SDoc
- pprConArgs :: forall (p :: Pass). (OutputableBndrId p, Outputable (Anno (IdGhcP p))) => HsConPatDetails (GhcPass p) -> SDoc
- pprLPat :: forall (p :: Pass). OutputableBndrId p => LPat (GhcPass p) -> SDoc
Documentation
Pattern
Constructors
| WildPat (XWildPat p) | Wildcard Pattern, i.e. |
| VarPat (XVarPat p) (LIdP p) | Variable Pattern, e.g. |
| LazyPat (XLazyPat p) (LPat p) | Lazy Pattern, e.g. |
| AsPat (XAsPat p) (LIdP p) (LPat p) | As pattern, e.g. |
| ParPat (XParPat p) (LPat p) | Parenthesised pattern, e.g. |
| BangPat (XBangPat p) (LPat p) | Bang pattern, e.g. |
| ListPat (XListPat p) [LPat p] | Syntactic List, e.g. |
| TuplePat | Tuple pattern, e.g. |
| OrPat (XOrPat p) (NonEmpty (LPat p)) | Or Pattern, e.g. Since: ghc-9.12.1 |
| SumPat (XSumPat p) (LPat p) ConTag SumWidth | Anonymous sum pattern, e.g. |
| ConPat | Constructor Pattern, e.g. |
Fields
| |
| ViewPat (XViewPat p) (LHsExpr p) (LPat p) | View Pattern, e.g. |
| SplicePat (XSplicePat p) (HsUntypedSplice p) | Splice Pattern, e.g. |
| 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, used for all overloaded literals, including overloaded Strings
with |
| NPlusKPat (XNPlusKPat p) (LIdP p) (XRec p (HsOverLit p)) (HsOverLit p) (SyntaxExpr p) (SyntaxExpr p) | n+k pattern, e.g. |
| SigPat (XSigPat p) (LPat p) (HsPatSigType (NoGhcTc p)) | Pattern with a type signature, e.g. |
| EmbTyPat (XEmbTyPat p) (HsTyPat (NoGhcTc p)) | Embed the syntax of types into patterns, e.g. |
| InvisPat (XInvisPat p) (HsTyPat (NoGhcTc p)) | Type abstraction which brings into scope type variables associated with invisible forall.
E.g. |
| XPat !(XXPat p) | TTG Extension point; see Note [Trees That Grow] in Language.Haskell.Syntax.Extension |
Instances
| OutputableBndrId p => Outputable (Pat (GhcPass p)) Source # | |
| Data (Pat GhcPs) Source # | |
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) Source # | |
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) Source # | |
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) # | |
| type Anno (Pat (GhcPass p)) Source # | |
Defined in GHC.Hs.Pat | |
| type Anno [LocatedA (Pat (GhcPass p))] Source # | |
Defined in GHC.Hs.Expr | |
isInvisArgPat :: Pat p -> Bool Source #
isVisArgPat :: Pat p -> Bool Source #
data EpAnnSumPat Source #
Constructors
| EpAnnSumPat | |
Fields
| |
Instances
| NoAnn EpAnnSumPat Source # | |
Defined in GHC.Hs.Pat Methods noAnn :: EpAnnSumPat Source # | |
| Data EpAnnSumPat Source # | |
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 # | |
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
| |
Instances
| Data ConPatTc Source # | |
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 # | |
data HsPatExpansion a b Source #
Constructors
| HsPatExpanded a b |
Instances
| (Outputable a, Outputable b) => Outputable (HsPatExpansion a b) Source # | |
Defined in GHC.Hs.Pat Methods ppr :: HsPatExpansion a b -> SDoc Source # | |
| (Data a, Data b) => Data (HsPatExpansion a b) Source # | |
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) # | |
data XXPatGhcTc Source #
Extension constructor for Pat, added after typechecking.
Constructors
| CoPat | Coercion Pattern (translation only) During desugaring a (CoPat co pat) turns into a cast with |
Fields
| |
| 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 Source # | |
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)) Source #
Haskell Constructor Pattern Details
hsConPatArgs :: UnXRec p => HsConPatDetails p -> [LPat p] Source #
hsConPatTyArgs :: HsConPatDetails p -> [HsConPatTyArg (NoGhcTc p)] Source #
data HsConPatTyArg p Source #
Type argument in a data constructor pattern,
e.g. the @a in f (Just @a x) = ....
Constructors
| HsConPatTyArg !(XConPatTyArg p) (HsTyPat p) |
Instances
| Outputable (HsTyPat p) => Outputable (HsConPatTyArg p) Source # | |
Defined in GHC.Hs.Pat Methods ppr :: HsConPatTyArg p -> SDoc Source # | |
| Data (HsConPatTyArg GhcPs) Source # | |
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) Source # | |
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) Source # | |
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) # | |
data HsRecFields p arg Source #
Haskell Record Fields
HsRecFields is used only for patterns and expressions (not data type declarations)
Constructors
| HsRecFields | |
Fields
| |
Instances
| (Outputable arg, Outputable (XRec p (HsRecField p arg)), XRec p RecFieldsDotDot ~ LocatedE RecFieldsDotDot) => Outputable (HsRecFields p arg) Source # | |
Defined in GHC.Hs.Pat Methods ppr :: HsRecFields p arg -> SDoc Source # | |
| Data body => Data (HsRecFields GhcPs body) Source # | |
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) Source # | |
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) Source # | |
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 HsFieldBind lhs rhs Source #
Haskell Field Binding
Constructors
| HsFieldBind | |
Instances
| Functor (HsFieldBind lhs) Source # | |
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) Source # | |
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) Source # | |
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) # | |
| (Outputable p, OutputableBndr p, Outputable arg) => Outputable (HsFieldBind p arg) Source # | |
Defined in GHC.Hs.Pat Methods ppr :: HsFieldBind p arg -> SDoc Source # | |
| (Data a, Data b) => Data (HsFieldBind a b) Source # | |
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) # | |
| type Anno (HsFieldBind lhs rhs) Source # | |
Defined in GHC.Hs.Pat | |
type LHsFieldBind p id arg = XRec p (HsFieldBind id arg) Source #
Located Haskell Record Field
type HsRecField p arg = HsFieldBind (LFieldOcc p) arg Source #
Haskell Record Field
type LHsRecField p arg = XRec p (HsRecField p arg) Source #
Located Haskell Record Field
type HsRecUpdField p q = HsFieldBind (LFieldOcc p) (LHsExpr q) Source #
Haskell Record Update Field
type LHsRecUpdField p q = XRec p (HsRecUpdField p q) Source #
Located Haskell Record Update Field
newtype RecFieldsDotDot Source #
Newtype to be able to have a specific XRec instance for the Int in rec_dotdot
Constructors
| RecFieldsDotDot | |
Fields | |
Instances
hsRecFields :: UnXRec p => HsRecFields p arg -> [IdP p] Source #
hsRecFieldSel :: UnXRec p => HsRecField p arg -> IdP p Source #
hsRecFieldId :: HsRecField GhcTc arg -> Id Source #
hsRecFieldsArgs :: UnXRec p => HsRecFields p arg -> [arg] Source #
mkCharLitPat :: SourceText -> Char -> LPat GhcTc Source #
isSimplePat :: forall (x :: Pass). LPat (GhcPass x) -> Maybe (IdP (GhcPass x)) Source #
Is the pattern any of combination of:
- (pat)
- pat :: Type
- ~pat
- !pat
- x (variable)
gParPat :: forall (p :: Pass). IsPass p => LPat (GhcPass p) -> Pat (GhcPass p) Source #
Parenthesize a pattern without token information
patNeedsParens :: forall (p :: Pass). IsPass p => PprPrec -> Pat (GhcPass p) -> Bool Source #
returns patNeedsParens p patTrue if the pattern pat needs
parentheses under precedence p.
parenthesizePat :: forall (p :: Pass). IsPass p => PprPrec -> LPat (GhcPass p) -> LPat (GhcPass p) Source #
checks if parenthesizePat p pat is true, and
if so, surrounds patNeedsParens p patpat with a ParPat. Otherwise, it simply returns pat.
Arguments
| :: forall (p :: Pass). IsPass p | |
| => Bool | Are we in a |
| -> (ConLikeP (GhcPass p) -> Bool) | How to check whether the |
| -> LPat (GhcPass p) | The (located) pattern to check |
| -> 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.)
If isIrrefutableHsPat returns True, the pattern is definitely irrefutable.
However, isIrrefutableHsPat returns False if it's in doubt. It's a
best effort guess with the information we have available:
- we sometimes call
isIrrefutableHsPatfrom the renamer, in which case we don't have type information to hand. This means we can't properly handle GADTs, nor the result TyCon of COMPLETE pragmas. - even when calling
isIrrefutableHsPatin the typechecker, we don't keep track of any long distance information like the pattern-match checker does.
isBoringHsPat :: forall (p :: Pass). OutputableBndrId p => LPat (GhcPass p) -> Bool Source #
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].
pprParendLPat :: forall (p :: Pass). OutputableBndrId p => PprPrec -> LPat (GhcPass p) -> SDoc Source #
pprConArgs :: forall (p :: Pass). (OutputableBndrId p, Outputable (Anno (IdGhcP p))) => HsConPatDetails (GhcPass p) -> SDoc Source #
Orphan instances
| Outputable (HsTyPat p) => Outputable (HsConPatTyArg p) Source # | |
Methods ppr :: HsConPatTyArg p -> SDoc Source # | |
| OutputableBndrId p => Outputable (Pat (GhcPass p)) Source # | |
| (Outputable p, OutputableBndr p, Outputable arg) => Outputable (HsFieldBind p arg) Source # | |
Methods ppr :: HsFieldBind p arg -> SDoc Source # | |
| (Outputable arg, Outputable (XRec p (HsRecField p arg)), XRec p RecFieldsDotDot ~ LocatedE RecFieldsDotDot) => Outputable (HsRecFields p arg) Source # | |
Methods ppr :: HsRecFields p arg -> SDoc Source # | |