ghc-8.8.4: The GHC API
Safe HaskellNone
LanguageHaskell2010

IfaceType

Synopsis

Documentation

data IfaceType #

A kind of universal type, used for types and kinds.

Any time a Type is pretty-printed, it is first converted to an IfaceType before being printed. See Note [Pretty printing via IfaceSyn] in PprTyThing

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Outputable IfaceType # 
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Defined in IfaceType

Binary IfaceType # 
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Defined in IfaceType

Binary (DefMethSpec IfaceType) # 
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Defined in IfaceType

data IfaceMCoercion #

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Binary IfaceMCoercion # 
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Defined in IfaceType

data IfaceTyCon #

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Eq IfaceTyCon # 
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Outputable IfaceTyCon # 
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Binary IfaceTyCon # 
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data IfaceTyConSort #

The various types of TyCons which have special, built-in syntax.

Constructors

IfaceNormalTyCon

a regular tycon

IfaceTupleTyCon !Arity !TupleSort

e.g. (a, b, c) or (). The arity is the tuple width, not the tycon arity (which is twice the width in the case of unboxed tuples).

IfaceSumTyCon !Arity

e.g. (a | b | c)

IfaceEqualityTyCon

A heterogeneous equality TyCon (i.e. eqPrimTyCon, eqReprPrimTyCon, heqTyCon) that is actually being applied to two types of the same kind. This affects pretty-printing only: see Note [Equality predicates in IfaceType]

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Eq IfaceTyConSort # 
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Binary IfaceTyConSort # 
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data IfaceTyLit #

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Eq IfaceTyLit # 
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Outputable IfaceTyLit # 
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Binary IfaceTyLit # 
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data IfaceAppArgs #

Stores the arguments in a type application as a list. See Note [Suppressing invisible arguments].

data IfaceBndr #

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Outputable IfaceBndr # 
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Defined in IfaceType

Binary IfaceBndr # 
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data IfaceOneShot #

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Binary IfaceOneShot # 
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Defined in IfaceType

data ArgFlag #

Argument Flag

Is something required to appear in source Haskell (Required), permitted by request (Specified) (visible type application), or prohibited entirely from appearing in source Haskell (Inferred)? See Note [VarBndrs, TyCoVarBinders, TyConBinders, and visibility] in TyCoRep

Constructors

Inferred 
Specified 
Required 

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Eq ArgFlag # 
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Defined in Var

Methods

(==) :: ArgFlag -> ArgFlag -> Bool #

(/=) :: ArgFlag -> ArgFlag -> Bool #

Data ArgFlag # 
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Defined in Var

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> ArgFlag -> c ArgFlag Source #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c ArgFlag Source #

toConstr :: ArgFlag -> Constr Source #

dataTypeOf :: ArgFlag -> DataType Source #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c ArgFlag) Source #

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

gmapT :: (forall b. Data b => b -> b) -> ArgFlag -> ArgFlag Source #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> ArgFlag -> r Source #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> ArgFlag -> r Source #

gmapQ :: (forall d. Data d => d -> u) -> ArgFlag -> [u] Source #

gmapQi :: Int -> (forall d. Data d => d -> u) -> ArgFlag -> u Source #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> ArgFlag -> m ArgFlag Source #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> ArgFlag -> m ArgFlag Source #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> ArgFlag -> m ArgFlag Source #

Ord ArgFlag # 
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Defined in Var

Outputable ArgFlag # 
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Defined in Var

Methods

ppr :: ArgFlag -> SDoc #

pprPrec :: Rational -> ArgFlag -> SDoc #

Binary ArgFlag # 
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Outputable tv => Outputable (VarBndr tv ArgFlag) # 
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Defined in Var

data ShowForAllFlag #

Show forall flag

Unconditionally show the forall quantifier with (ShowForAllMust) or when (ShowForAllWhen) the names used are free in the binder or when compiling with -fprint-explicit-foralls.

ifForAllBndrName :: IfaceForAllBndr -> IfLclName #

Extract the variable name from an IfaceForAllBndr.

ifTyConBinderName :: IfaceTyConBinder -> IfLclName #

Extract the variable name from an IfaceTyConBinder.

pprIfaceContext :: PprPrec -> [IfacePredType] -> SDoc #

Prints a context or () if empty You give it the context precedence

pprIfaceContextArr :: [IfacePredType] -> SDoc #

Prints "(C a, D b) =>", including the arrow. Used when we want to print a context in a type, so we use funPrec to decide whether to parenthesise a singleton predicate; e.g. Num a => a -> a

pprIfaceForAllPartMust :: [IfaceForAllBndr] -> [IfacePredType] -> SDoc -> SDoc #

Like pprIfaceForAllPart, but always uses an explicit forall.

pprIfaceForAll :: [IfaceForAllBndr] -> SDoc #

Render the "forall ... ." or "forall ... ->" bit of a type.

mkIfaceTySubst :: [(IfLclName, IfaceType)] -> IfaceTySubst #

substIfaceTyVar :: IfaceTySubst -> IfLclName -> IfaceType #

inDomIfaceTySubst :: IfaceTySubst -> IfaceTvBndr -> Bool #