Safe Haskell	Safe-Inferred
Language	Haskell2010

GHC.Types.Var

Contents

The main data type and synonyms
In and Out variants
ArgFlags
TyVar's

Description

GHC uses several kinds of name internally:

OccName: see GHC.Types.Name.Occurrence
RdrName: see GHC.Types.Name.Reader
Name: see GHC.Types.Name
Id: see GHC.Types.Id
Var is a synonym for the Id type but it may additionally potentially contain type variables, which have a Kind rather than a Type and only contain some extra details during typechecking.

These Var names may either be global or local, see GHC.Types.Var

Global Vars and Vars are those that are imported or correspond to a data constructor, primitive operation, or record selectors. Local Vars and Vars are those bound within an expression (e.g. by a lambda) or at the top level of the module being compiled.

Synopsis

data Var
type CoVar = Id
type Id = Var
type NcId = Id
type DictId = EvId
type DFunId = Id
type EvVar = EvId
type EqVar = EvId
type EvId = Id
type IpId = EvId
type JoinId = Id
type TyVar = Var
type TcTyVar = Var
type TypeVar = Var
type KindVar = Var
type TKVar = Var
type TyCoVar = Id
type InVar = Var
type InCoVar = CoVar
type InId = Id
type InTyVar = TyVar
type OutVar = Var
type OutCoVar = CoVar
type OutId = Id
type OutTyVar = TyVar
varName :: Var -> Name
varUnique :: Var -> Unique
varType :: Var -> Kind
varMult :: Var -> Mult
varMultMaybe :: Id -> Maybe Mult
setVarName :: Var -> Name -> Var
setVarUnique :: Var -> Unique -> Var
setVarType :: Var -> Type -> Var
updateVarType :: (Type -> Type) -> Var -> Var
updateVarTypeM :: Monad m => (Type -> m Type) -> Var -> m Var
mkGlobalVar :: IdDetails -> Name -> Type -> IdInfo -> Id
mkLocalVar :: IdDetails -> Name -> Mult -> Type -> IdInfo -> Id
mkExportedLocalVar :: IdDetails -> Name -> Type -> IdInfo -> Id
mkCoVar :: Name -> Type -> CoVar
idInfo :: HasDebugCallStack => Id -> IdInfo
idDetails :: Id -> IdDetails
lazySetIdInfo :: Id -> IdInfo -> Var
setIdDetails :: Id -> IdDetails -> Id
globaliseId :: Id -> Id
setIdExported :: Id -> Id
setIdNotExported :: Id -> Id
setIdMult :: Id -> Mult -> Id
updateIdTypeButNotMult :: (Type -> Type) -> Id -> Id
updateIdTypeAndMult :: (Type -> Type) -> Id -> Id
updateIdTypeAndMultM :: Monad m => (Type -> m Type) -> Id -> m Id
isId :: Var -> Bool
isTyVar :: Var -> Bool
isTcTyVar :: Var -> Bool
isLocalVar :: Var -> Bool
isLocalId :: Var -> Bool
isCoVar :: Var -> Bool
isNonCoVarId :: Var -> Bool
isTyCoVar :: Var -> Bool
isGlobalId :: Var -> Bool
isExportedId :: Var -> Bool
mustHaveLocalBinding :: Var -> Bool
data ArgFlag where
- Invisible Specificity
- Required
- pattern Specified :: ArgFlag
- pattern Inferred :: ArgFlag
data AnonArgFlag
- = VisArg
- | InvisArg
data Specificity
- = InferredSpec
- | SpecifiedSpec
isVisibleArgFlag :: ArgFlag -> Bool
isInvisibleArgFlag :: ArgFlag -> Bool
isInferredArgFlag :: ArgFlag -> Bool
sameVis :: ArgFlag -> ArgFlag -> Bool
data VarBndr var argf = Bndr var argf
type TyCoVarBinder = VarBndr TyCoVar ArgFlag
type TyVarBinder = VarBndr TyVar ArgFlag
type InvisTVBinder = VarBndr TyVar Specificity
type ReqTVBinder = VarBndr TyVar ()
binderVar :: VarBndr tv argf -> tv
binderVars :: [VarBndr tv argf] -> [tv]
binderArgFlag :: VarBndr tv argf -> argf
binderType :: VarBndr TyCoVar argf -> Type
mkTyCoVarBinder :: vis -> TyCoVar -> VarBndr TyCoVar vis
mkTyCoVarBinders :: vis -> [TyCoVar] -> [VarBndr TyCoVar vis]
mkTyVarBinder :: vis -> TyVar -> VarBndr TyVar vis
mkTyVarBinders :: vis -> [TyVar] -> [VarBndr TyVar vis]
isTyVarBinder :: TyCoVarBinder -> Bool
tyVarSpecToBinder :: VarBndr a Specificity -> VarBndr a ArgFlag
tyVarSpecToBinders :: [VarBndr a Specificity] -> [VarBndr a ArgFlag]
tyVarReqToBinder :: VarBndr a () -> VarBndr a ArgFlag
tyVarReqToBinders :: [VarBndr a ()] -> [VarBndr a ArgFlag]
mapVarBndr :: (var -> var') -> VarBndr var flag -> VarBndr var' flag
mapVarBndrs :: (var -> var') -> [VarBndr var flag] -> [VarBndr var' flag]
lookupVarBndr :: Eq var => var -> [VarBndr var flag] -> Maybe flag
mkTyVar :: Name -> Kind -> TyVar
mkTcTyVar :: Name -> Kind -> TcTyVarDetails -> TyVar
tyVarName :: TyVar -> Name
tyVarKind :: TyVar -> Kind
tcTyVarDetails :: TyVar -> TcTyVarDetails
setTcTyVarDetails :: TyVar -> TcTyVarDetails -> TyVar
setTyVarName :: TyVar -> Name -> TyVar
setTyVarUnique :: TyVar -> Unique -> TyVar
setTyVarKind :: TyVar -> Kind -> TyVar
updateTyVarKind :: (Kind -> Kind) -> TyVar -> TyVar
updateTyVarKindM :: Monad m => (Kind -> m Kind) -> TyVar -> m TyVar
nonDetCmpVar :: Var -> Var -> Ordering

The main data type and synonyms

data Var Source #

Variable

Essentially a typed Name, that may also contain some additional information about the Var and its use sites.

Instances

Instances details

Data Var Source #
Instance details Defined in GHC.Types.Var Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Var -> c Var Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Var Source # toConstr :: Var -> Constr Source # dataTypeOf :: Var -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Var) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Var) Source # gmapT :: (forall b. Data b => b -> b) -> Var -> Var Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Var -> r Source # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Var -> r Source # gmapQ :: (forall d. Data d => d -> u) -> Var -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> Var -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Var -> m Var Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Var -> m Var Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Var -> m Var Source #
NamedThing Var Source #
Instance details Defined in GHC.Types.Var Methods getOccName :: Var -> OccName Source # getName :: Var -> Name Source #
HasOccName Var Source #
Instance details Defined in GHC.Types.Var Methods occName :: Var -> OccName Source #
Uniquable Var Source #
Instance details Defined in GHC.Types.Var Methods getUnique :: Var -> Unique Source #
Outputable Var Source #
Instance details Defined in GHC.Types.Var Methods ppr :: Var -> SDoc Source #
OutputableBndr Var Source #
Instance details Defined in GHC.Core.Ppr Methods pprBndr :: BindingSite -> Var -> SDoc Source # pprPrefixOcc :: Var -> SDoc Source # pprInfixOcc :: Var -> SDoc Source # bndrIsJoin_maybe :: Var -> Maybe Int Source #
Eq Var Source #
Instance details Defined in GHC.Types.Var Methods (==) :: Var -> Var -> Bool # (/=) :: Var -> Var -> Bool #
Ord Var Source #
Instance details Defined in GHC.Types.Var Methods compare :: Var -> Var -> Ordering # (<) :: Var -> Var -> Bool # (<=) :: Var -> Var -> Bool # (>) :: Var -> Var -> Bool # (>=) :: Var -> Var -> Bool # max :: Var -> Var -> Var # min :: Var -> Var -> Var #
Eq (DeBruijn CoreAlt) Source #
Instance details Defined in GHC.Core.Map.Expr Methods (==) :: DeBruijn CoreAlt -> DeBruijn CoreAlt -> Bool # (/=) :: DeBruijn CoreAlt -> DeBruijn CoreAlt -> Bool #
Eq (DeBruijn CoreExpr) Source #
Instance details Defined in GHC.Core.Map.Expr Methods (==) :: DeBruijn CoreExpr -> DeBruijn CoreExpr -> Bool # (/=) :: DeBruijn CoreExpr -> DeBruijn CoreExpr -> Bool #
Eq (DeBruijn Var) Source #
Instance details Defined in GHC.Core.Map.Type Methods (==) :: DeBruijn Var -> DeBruijn Var -> Bool # (/=) :: DeBruijn Var -> DeBruijn Var -> Bool #
OutputableBndr (Id, TagSig) Source #
Instance details Defined in GHC.Stg.InferTags.TagSig Methods pprBndr :: BindingSite -> (Id, TagSig) -> SDoc Source # pprPrefixOcc :: (Id, TagSig) -> SDoc Source # pprInfixOcc :: (Id, TagSig) -> SDoc Source # bndrIsJoin_maybe :: (Id, TagSig) -> Maybe Int Source #
type Anno Id Source #
Instance details Defined in GHC.Hs.Extension type Anno Id = SrcSpanAnnN
type Anno (LocatedN Id) Source #
Instance details Defined in GHC.Hs.Binds type Anno (LocatedN Id) = SrcSpan
type Anno [LocatedN Id] Source #
Instance details Defined in GHC.Hs.Binds type Anno [LocatedN Id] = SrcSpan

type CoVar = Id Source #

Coercion Variable

type Id = Var Source #

Identifier

type NcId = Id Source #

type DictId = EvId Source #

Dictionary Identifier

type DFunId = Id Source #

Dictionary Function Identifier

type EvVar = EvId Source #

Evidence Variable

type EqVar = EvId Source #

Equality Variable

type EvId = Id Source #

Evidence Identifier

type IpId = EvId Source #

Implicit parameter Identifier

type JoinId = Id Source #

type TyVar = Var Source #

Type or kind Variable

type TcTyVar = Var Source #

Type variable that might be a metavariable

type TypeVar = Var Source #

Type Variable

type KindVar = Var Source #

Kind Variable

type TKVar = Var Source #

Type or Kind Variable

type TyCoVar = Id Source #

Type or Coercion Variable

In and Out variants

type InVar = Var Source #

type InCoVar = CoVar Source #

type InId = Id Source #

type InTyVar = TyVar Source #

type OutVar = Var Source #

type OutCoVar = CoVar Source #

type OutId = Id Source #

type OutTyVar = TyVar Source #

Taking `Var`s apart

varName :: Var -> Name Source #

varUnique :: Var -> Unique Source #

varType :: Var -> Kind Source #

The type or kind of the Var in question

varMult :: Var -> Mult Source #

varMultMaybe :: Id -> Maybe Mult Source #

Modifying `Var`s

setVarName :: Var -> Name -> Var Source #

setVarUnique :: Var -> Unique -> Var Source #

setVarType :: Var -> Type -> Var Source #

updateVarType :: (Type -> Type) -> Var -> Var Source #

Update a Vars type. Does not update the multiplicity stored in an Var, if any. Because of the possibility for abuse, ASSERTs that there is no multiplicity to update.

updateVarTypeM :: Monad m => (Type -> m Type) -> Var -> m Var Source #

Update a Vars type monadically. Does not update the multiplicity stored in an Var, if any. Because of the possibility for abuse, ASSERTs that there is no multiplicity to update.

Constructing, taking apart, modifying `Var`s

mkGlobalVar :: IdDetails -> Name -> Type -> IdInfo -> Id Source #

mkLocalVar :: IdDetails -> Name -> Mult -> Type -> IdInfo -> Id Source #

mkExportedLocalVar :: IdDetails -> Name -> Type -> IdInfo -> Id Source #

Exported Vars will not be removed as dead code

mkCoVar :: Name -> Type -> CoVar Source #

idInfo :: HasDebugCallStack => Id -> IdInfo Source #

idDetails :: Id -> IdDetails Source #

lazySetIdInfo :: Id -> IdInfo -> Var Source #

setIdDetails :: Id -> IdDetails -> Id Source #

globaliseId :: Id -> Id Source #

If it's a local, make it global

setIdExported :: Id -> Id Source #

Exports the given local Var. Can also be called on global Vars, such as data constructors and class operations, which are born as global Vars and automatically exported

setIdNotExported :: Id -> Id Source #

We can only do this to LocalIds

setIdMult :: Id -> Mult -> Id Source #

updateIdTypeButNotMult :: (Type -> Type) -> Id -> Id Source #

updateIdTypeAndMult :: (Type -> Type) -> Id -> Id Source #

updateIdTypeAndMultM :: Monad m => (Type -> m Type) -> Id -> m Id Source #

Predicates

isId :: Var -> Bool Source #

Is this a value-level (i.e., computationally relevant) Varentifier? Satisfies isId = not . isTyVar.

isTyVar :: Var -> Bool Source #

Is this a type-level (i.e., computationally irrelevant, thus erasable) variable? Satisfies isTyVar = not . isId.

isTcTyVar :: Var -> Bool Source #

isLocalVar :: Var -> Bool Source #

isLocalVar returns True for type variables as well as local Vars These are the variables that we need to pay attention to when finding free variables, or doing dependency analysis.

isLocalId :: Var -> Bool Source #

isCoVar :: Var -> Bool Source #

Is this a coercion variable? Satisfies isId v ==> isCoVar v == not (isNonCoVarId v).

isNonCoVarId :: Var -> Bool Source #

Is this a term variable (Var) that is not a coercion variable? Satisfies isId v ==> isCoVar v == not (isNonCoVarId v).

isTyCoVar :: Var -> Bool Source #

isGlobalId :: Var -> Bool Source #

isExportedId :: Var -> Bool Source #

isExportedIdVar means "don't throw this away"

mustHaveLocalBinding :: Var -> Bool Source #

mustHaveLocalBinding returns True of Vars and Vars that must have a binding in this module. The converse is not quite right: there are some global Vars that must have bindings, such as record selectors. But that doesn't matter, because it's only used for assertions

ArgFlags

data ArgFlag Source #

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 GHC.Core.TyCo.Rep

Constructors

Invisible Specificity
Required

Bundled Patterns

pattern Specified :: ArgFlag
pattern Inferred :: ArgFlag

Instances

Instances details

Data ArgFlag Source #
Instance details Defined in GHC.Types.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 #
Binary ArgFlag Source #
Instance details Defined in GHC.Types.Var Methods put_ :: BinHandle -> ArgFlag -> IO () Source # put :: BinHandle -> ArgFlag -> IO (Bin ArgFlag) Source # get :: BinHandle -> IO ArgFlag Source #
Outputable ArgFlag Source #
Instance details Defined in GHC.Types.Var Methods ppr :: ArgFlag -> SDoc Source #
Eq ArgFlag Source #
Instance details Defined in GHC.Types.Var Methods (==) :: ArgFlag -> ArgFlag -> Bool # (/=) :: ArgFlag -> ArgFlag -> Bool #
Ord ArgFlag Source #
Instance details Defined in GHC.Types.Var Methods compare :: ArgFlag -> ArgFlag -> Ordering # (<) :: ArgFlag -> ArgFlag -> Bool # (<=) :: ArgFlag -> ArgFlag -> Bool # (>) :: ArgFlag -> ArgFlag -> Bool # (>=) :: ArgFlag -> ArgFlag -> Bool # max :: ArgFlag -> ArgFlag -> ArgFlag # min :: ArgFlag -> ArgFlag -> ArgFlag #
Outputable tv => Outputable (VarBndr tv ArgFlag) Source #
Instance details Defined in GHC.Types.Var Methods ppr :: VarBndr tv ArgFlag -> SDoc Source #

data AnonArgFlag Source #

The non-dependent version of ArgFlag. See Note [AnonArgFlag] Appears here partly so that it's together with its friends ArgFlag and ForallVisFlag, but also because it is used in IfaceType, rather early in the compilation chain

Constructors

VisArg	Used for `(->)`: an ordinary non-dependent arrow. The argument is visible in source code.
InvisArg	Used for `(=>)`: a non-dependent predicate arrow. The argument is invisible in source code.

Instances

Instances details

Data AnonArgFlag Source #
Instance details Defined in GHC.Types.Var Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> AnonArgFlag -> c AnonArgFlag Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c AnonArgFlag Source # toConstr :: AnonArgFlag -> Constr Source # dataTypeOf :: AnonArgFlag -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c AnonArgFlag) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c AnonArgFlag) Source # gmapT :: (forall b. Data b => b -> b) -> AnonArgFlag -> AnonArgFlag Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> AnonArgFlag -> r Source # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> AnonArgFlag -> r Source # gmapQ :: (forall d. Data d => d -> u) -> AnonArgFlag -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> AnonArgFlag -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> AnonArgFlag -> m AnonArgFlag Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> AnonArgFlag -> m AnonArgFlag Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> AnonArgFlag -> m AnonArgFlag Source #
Binary AnonArgFlag Source #
Instance details Defined in GHC.Types.Var Methods put_ :: BinHandle -> AnonArgFlag -> IO () Source # put :: BinHandle -> AnonArgFlag -> IO (Bin AnonArgFlag) Source # get :: BinHandle -> IO AnonArgFlag Source #
Outputable AnonArgFlag Source #
Instance details Defined in GHC.Types.Var Methods ppr :: AnonArgFlag -> SDoc Source #
Eq AnonArgFlag Source #
Instance details Defined in GHC.Types.Var Methods (==) :: AnonArgFlag -> AnonArgFlag -> Bool # (/=) :: AnonArgFlag -> AnonArgFlag -> Bool #
Ord AnonArgFlag Source #
Instance details Defined in GHC.Types.Var Methods compare :: AnonArgFlag -> AnonArgFlag -> Ordering # (<) :: AnonArgFlag -> AnonArgFlag -> Bool # (<=) :: AnonArgFlag -> AnonArgFlag -> Bool # (>) :: AnonArgFlag -> AnonArgFlag -> Bool # (>=) :: AnonArgFlag -> AnonArgFlag -> Bool # max :: AnonArgFlag -> AnonArgFlag -> AnonArgFlag # min :: AnonArgFlag -> AnonArgFlag -> AnonArgFlag #

data Specificity Source #

Whether an Invisible argument may appear in source Haskell.

Constructors

InferredSpec	the argument may not appear in source Haskell, it is only inferred.
SpecifiedSpec	the argument may appear in source Haskell, but isn't required.

Instances

Instances details

Data Specificity Source #
Instance details Defined in GHC.Types.Var Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Specificity -> c Specificity Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Specificity Source # toConstr :: Specificity -> Constr Source # dataTypeOf :: Specificity -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Specificity) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Specificity) Source # gmapT :: (forall b. Data b => b -> b) -> Specificity -> Specificity Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Specificity -> r Source # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Specificity -> r Source # gmapQ :: (forall d. Data d => d -> u) -> Specificity -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> Specificity -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Specificity -> m Specificity Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Specificity -> m Specificity Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Specificity -> m Specificity Source #
Binary Specificity Source #
Instance details Defined in GHC.Types.Var Methods put_ :: BinHandle -> Specificity -> IO () Source # put :: BinHandle -> Specificity -> IO (Bin Specificity) Source # get :: BinHandle -> IO Specificity Source #
Eq Specificity Source #
Instance details Defined in GHC.Types.Var Methods (==) :: Specificity -> Specificity -> Bool # (/=) :: Specificity -> Specificity -> Bool #
Ord Specificity Source #
Instance details Defined in GHC.Types.Var Methods compare :: Specificity -> Specificity -> Ordering # (<) :: Specificity -> Specificity -> Bool # (<=) :: Specificity -> Specificity -> Bool # (>) :: Specificity -> Specificity -> Bool # (>=) :: Specificity -> Specificity -> Bool # max :: Specificity -> Specificity -> Specificity # min :: Specificity -> Specificity -> Specificity #
OutputableBndrFlag Specificity p Source #
Instance details Defined in GHC.Hs.Type Methods pprTyVarBndr :: HsTyVarBndr Specificity (GhcPass p) -> SDoc
Outputable tv => Outputable (VarBndr tv Specificity) Source #
Instance details Defined in GHC.Types.Var Methods ppr :: VarBndr tv Specificity -> SDoc Source #

isVisibleArgFlag :: ArgFlag -> Bool Source #

Does this ArgFlag classify an argument that is written in Haskell?

isInvisibleArgFlag :: ArgFlag -> Bool Source #

Does this ArgFlag classify an argument that is not written in Haskell?

isInferredArgFlag :: ArgFlag -> Bool Source #

sameVis :: ArgFlag -> ArgFlag -> Bool Source #

Do these denote the same level of visibility? Required arguments are visible, others are not. So this function equates Specified and Inferred. Used for printing.

TyVar's

data VarBndr var argf Source #

Constructors

Bndr var argf

Instances

Instances details

(Data var, Data argf) => Data (VarBndr var argf) Source #
Instance details Defined in GHC.Types.Var Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> VarBndr var argf -> c (VarBndr var argf) Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (VarBndr var argf) Source # toConstr :: VarBndr var argf -> Constr Source # dataTypeOf :: VarBndr var argf -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (VarBndr var argf)) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (VarBndr var argf)) Source # gmapT :: (forall b. Data b => b -> b) -> VarBndr var argf -> VarBndr var argf Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> VarBndr var argf -> r Source # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> VarBndr var argf -> r Source # gmapQ :: (forall d. Data d => d -> u) -> VarBndr var argf -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> VarBndr var argf -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> VarBndr var argf -> m (VarBndr var argf) Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> VarBndr var argf -> m (VarBndr var argf) Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> VarBndr var argf -> m (VarBndr var argf) Source #
NamedThing tv => NamedThing (VarBndr tv flag) Source #
Instance details Defined in GHC.Types.Var Methods getOccName :: VarBndr tv flag -> OccName Source # getName :: VarBndr tv flag -> Name Source #
(Binary tv, Binary vis) => Binary (VarBndr tv vis) Source #
Instance details Defined in GHC.Types.Var Methods put_ :: BinHandle -> VarBndr tv vis -> IO () Source # put :: BinHandle -> VarBndr tv vis -> IO (Bin (VarBndr tv vis)) Source # get :: BinHandle -> IO (VarBndr tv vis) Source #
OutputableBndr tv => Outputable (VarBndr tv TyConBndrVis) Source #
Instance details Defined in GHC.Core.TyCon Methods ppr :: VarBndr tv TyConBndrVis -> SDoc Source #
Outputable tv => Outputable (VarBndr tv ArgFlag) Source #
Instance details Defined in GHC.Types.Var Methods ppr :: VarBndr tv ArgFlag -> SDoc Source #
Outputable tv => Outputable (VarBndr tv Specificity) Source #
Instance details Defined in GHC.Types.Var Methods ppr :: VarBndr tv Specificity -> SDoc Source #

type TyCoVarBinder = VarBndr TyCoVar ArgFlag Source #

Variable Binder

A TyCoVarBinder is the binder of a ForAllTy It's convenient to define this synonym here rather its natural home in GHC.Core.TyCo.Rep, because it's used in GHC.Core.DataCon.hs-boot

A TyVarBinder is a binder with only TyVar

type TyVarBinder = VarBndr TyVar ArgFlag Source #

type InvisTVBinder = VarBndr TyVar Specificity Source #

type ReqTVBinder = VarBndr TyVar () Source #

binderVar :: VarBndr tv argf -> tv Source #

binderVars :: [VarBndr tv argf] -> [tv] Source #

binderArgFlag :: VarBndr tv argf -> argf Source #

binderType :: VarBndr TyCoVar argf -> Type Source #

mkTyCoVarBinder :: vis -> TyCoVar -> VarBndr TyCoVar vis Source #

Make a named binder

mkTyCoVarBinders :: vis -> [TyCoVar] -> [VarBndr TyCoVar vis] Source #

Make many named binders

mkTyVarBinder :: vis -> TyVar -> VarBndr TyVar vis Source #

Make a named binder var should be a type variable

mkTyVarBinders :: vis -> [TyVar] -> [VarBndr TyVar vis] Source #

Make many named binders Input vars should be type variables

isTyVarBinder :: TyCoVarBinder -> Bool Source #

tyVarSpecToBinder :: VarBndr a Specificity -> VarBndr a ArgFlag Source #

tyVarSpecToBinders :: [VarBndr a Specificity] -> [VarBndr a ArgFlag] Source #

tyVarReqToBinder :: VarBndr a () -> VarBndr a ArgFlag Source #

tyVarReqToBinders :: [VarBndr a ()] -> [VarBndr a ArgFlag] Source #

mapVarBndr :: (var -> var') -> VarBndr var flag -> VarBndr var' flag Source #

mapVarBndrs :: (var -> var') -> [VarBndr var flag] -> [VarBndr var' flag] Source #

lookupVarBndr :: Eq var => var -> [VarBndr var flag] -> Maybe flag Source #

Constructing TyVar's

mkTyVar :: Name -> Kind -> TyVar Source #

mkTcTyVar :: Name -> Kind -> TcTyVarDetails -> TyVar Source #

Taking `Var`s apart

tyVarName :: TyVar -> Name Source #

tyVarKind :: TyVar -> Kind Source #

tcTyVarDetails :: TyVar -> TcTyVarDetails Source #

setTcTyVarDetails :: TyVar -> TcTyVarDetails -> TyVar Source #

Modifying `Var`s

setTyVarName :: TyVar -> Name -> TyVar Source #

setTyVarUnique :: TyVar -> Unique -> TyVar Source #

setTyVarKind :: TyVar -> Kind -> TyVar Source #

updateTyVarKind :: (Kind -> Kind) -> TyVar -> TyVar Source #

updateTyVarKindM :: Monad m => (Kind -> m Kind) -> TyVar -> m TyVar Source #

nonDetCmpVar :: Var -> Var -> Ordering Source #

Compare Vars by their Uniques. This is what Ord Var does, provided here to make it explicit at the call-site that it can introduce non-determinism. See Note [Unique Determinism]

The main data type and synonyms

Instances

In and Out variants

Taking Vars apart

Modifying Vars

Constructing, taking apart, modifying Vars

Predicates

ArgFlags

Instances

Instances

Instances

TyVar's

Instances

Constructing TyVar's

Taking Vars apart

Modifying Vars

Taking `Var`s apart

Modifying `Var`s

Constructing, taking apart, modifying `Var`s

Taking `Var`s apart

Modifying `Var`s