Name
Contents
Description
GHC uses several kinds of name internally:
-
OccName: see OccName -
RdrName.RdrName: see RdrName -
Nameis the type of names that have had their scoping and binding resolved. They have anOccNamebut also aUniquethat disambiguates Names that have the sameOccNameand indeed is used for allNamecomparison. Names also contain information about where they originated from, see Name -
Id.Id: see Id -
Var.Var: see Var
- External, if they name things declared in other modules. Some external Names are wired in, i.e. they name primitives defined in the compiler itself
- Internal, if they name things in the module being compiled. Some internal Names are system names, if they are names manufactured by the compiler
- data Name
- data BuiltInSyntax
- mkInternalName :: Unique -> OccName -> SrcSpan -> Name
- mkSystemName :: Unique -> OccName -> Name
- mkDerivedInternalName :: (OccName -> OccName) -> Unique -> Name -> Name
- mkSystemVarName :: Unique -> FastString -> Name
- mkSysTvName :: Unique -> FastString -> Name
- mkFCallName :: Unique -> String -> Name
- mkIPName :: Unique -> OccName -> Name
- mkTickBoxOpName :: Unique -> String -> Name
- mkExternalName :: Unique -> Module -> OccName -> SrcSpan -> Name
- mkWiredInName :: Module -> OccName -> Unique -> TyThing -> BuiltInSyntax -> Name
- nameUnique :: Name -> Unique
- setNameUnique :: Name -> Unique -> Name
- nameOccName :: Name -> OccName
- nameModule :: Name -> Module
- nameModule_maybe :: Name -> Maybe Module
- tidyNameOcc :: Name -> OccName -> Name
- hashName :: Name -> Int
- localiseName :: Name -> Name
- nameSrcLoc :: Name -> SrcLoc
- nameSrcSpan :: Name -> SrcSpan
- pprNameLoc :: Name -> SDoc
- isSystemName :: Name -> Bool
- isInternalName :: Name -> Bool
- isExternalName :: Name -> Bool
- isTyVarName :: Name -> Bool
- isTyConName :: Name -> Bool
- isDataConName :: Name -> Bool
- isValName :: Name -> Bool
- isVarName :: Name -> Bool
- isWiredInName :: Name -> Bool
- isBuiltInSyntax :: Name -> Bool
- wiredInNameTyThing_maybe :: Name -> Maybe TyThing
- nameIsLocalOrFrom :: Module -> Name -> Bool
- class NamedThing a where
- getOccName :: a -> OccName
- getName :: a -> Name
- getSrcLoc :: NamedThing a => a -> SrcLoc
- getSrcSpan :: NamedThing a => a -> SrcSpan
- getOccString :: NamedThing a => a -> String
- pprInfixName :: (Outputable a, NamedThing a) => a -> SDoc
- pprPrefixName :: (Outputable a, NamedThing a) => a -> SDoc
- pprModulePrefix :: PprStyle -> Module -> OccName -> SDoc
- module OccName
The main types
A unique, unambigious name for something, containing information about where that thing originated.
data BuiltInSyntax Source
BuiltInSyntax is for things like (:), [] and tuples,
which have special syntactic forms. They aren't in scope
as such.
Constructors
| BuiltInSyntax | |
| UserSyntax |
Creating Names
mkSystemName :: Unique -> OccName -> NameSource
Create a name brought into being by the compiler
mkSystemVarName :: Unique -> FastString -> NameSource
mkSysTvName :: Unique -> FastString -> NameSource
mkFCallName :: Unique -> String -> NameSource
Make a name for a foreign call
mkTickBoxOpName :: Unique -> String -> NameSource
mkExternalName :: Unique -> Module -> OccName -> SrcSpan -> NameSource
Create a name which definitely originates in the given module
mkWiredInName :: Module -> OccName -> Unique -> TyThing -> BuiltInSyntax -> NameSource
Create a name which is actually defined by the compiler itself
Manipulating and deconstructing Names
nameUnique :: Name -> UniqueSource
setNameUnique :: Name -> Unique -> NameSource
nameOccName :: Name -> OccNameSource
nameModule :: Name -> ModuleSource
tidyNameOcc :: Name -> OccName -> NameSource
localiseName :: Name -> NameSource
Make the Name into an internal name, regardless of what it was to begin with
nameSrcLoc :: Name -> SrcLocSource
nameSrcSpan :: Name -> SrcSpanSource
pprNameLoc :: Name -> SDocSource
Predicates on Names
isSystemName :: Name -> BoolSource
isInternalName :: Name -> BoolSource
isExternalName :: Name -> BoolSource
isTyVarName :: Name -> BoolSource
isTyConName :: Name -> BoolSource
isDataConName :: Name -> BoolSource
isWiredInName :: Name -> BoolSource
isBuiltInSyntax :: Name -> BoolSource
nameIsLocalOrFrom :: Module -> Name -> BoolSource
Class NamedThing and overloaded friends
class NamedThing a whereSource
A class allowing convenient access to the Name of various datatypes
getSrcLoc :: NamedThing a => a -> SrcLocSource
getSrcSpan :: NamedThing a => a -> SrcSpanSource
getOccString :: NamedThing a => a -> StringSource
pprInfixName :: (Outputable a, NamedThing a) => a -> SDocSource
pprPrefixName :: (Outputable a, NamedThing a) => a -> SDocSource
module OccName