PlaceHolder

Documentation

data PlaceHolder

used as place holder in PostTc and PostRn values

Constructors

PlaceHolder

Instances

Data PlaceHolder

Methods

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

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

toConstr :: PlaceHolder -> Constr

dataTypeOf :: PlaceHolder -> DataType

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

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

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

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

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

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

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

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

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

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

type family PostTc id ty

Types that are not defined until after type checking

Instances

type PostTc Name ty

type PostTc Name ty = PlaceHolder

type PostTc RdrName ty

type PostTc RdrName ty = PlaceHolder

type PostTc Id ty

type PostTc Id ty = ty

type family PostRn id ty

Types that are not defined until after renaming

Instances

type PostRn Name ty

type PostRn Name ty = ty

type PostRn RdrName ty

type PostRn RdrName ty = PlaceHolder

type PostRn Id ty

type PostRn Id ty = ty

placeHolderKind :: PlaceHolder

placeHolderFixity :: PlaceHolder

placeHolderType :: PlaceHolder

placeHolderTypeTc :: Type

placeHolderNames :: PlaceHolder

placeHolderNamesTc :: NameSet

placeHolderHsWrapper :: PlaceHolder

type DataId id = (DataIdPost id, DataIdPost (NameOrRdrName id))

type DataIdPost id = (Data id, Data (PostRn id NameSet), Data (PostRn id Fixity), Data (PostRn id Bool), Data (PostRn id Name), Data (PostRn id (Located Name)), Data (PostRn id [Name]), Data (PostRn id id), Data (PostTc id Type), Data (PostTc id Coercion), Data (PostTc id id), Data (PostTc id [Type]), Data (PostTc id ConLike), Data (PostTc id [ConLike]), Data (PostTc id HsWrapper), Data (PostTc id [FieldLabel]))

type family NameOrRdrName id where ...

Follow the id, but never beyond Name. This is used in a HsMatchContext, for printing messages related to a Match

Equations

NameOrRdrName Id = Name

NameOrRdrName Name = Name

NameOrRdrName RdrName = RdrName

type OutputableBndrId id = (OutputableBndr id, OutputableBndr (NameOrRdrName id))

Constraint type to bundle up the requirement for OutputableBndr on both the id and the NameOrRdrName type for it