GHC.Tc.Utils.Env

Documentation

data TyThing Source #

A global typecheckable-thing, essentially anything that has a name. Not to be confused with a TcTyThing, which is also a typecheckable thing but in the *local* context. See GHC.Tc.Utils.Env for how to retrieve a TyThing given a Name.

Constructors

AnId Id 
AConLike ConLike 
ATyCon TyCon 
ACoAxiom (CoAxiom Branched) 
Instances
Instances details
NamedThing TyThing Source # 
Instance details

Defined in GHC.Types.TyThing

Methods

getOccName :: TyThing -> OccName Source #

getName :: TyThing -> Name Source #

Outputable TyThing Source # 
Instance details

Defined in GHC.Types.TyThing

Methods

ppr :: TyThing -> SDoc Source #

data TcTyThing Source #

A typecheckable thing available in a local context. Could be AGlobal TyThing, but also lexically scoped variables, etc. See GHC.Tc.Utils.Env for how to retrieve a TyThing given a Name.

Constructors

AGlobal TyThing 
ATcId 

Fields

ATyVar Name TcTyVar 
ATcTyCon TyCon 
APromotionErr PromotionErr 
Instances
Instances details
Outputable TcTyThing Source # 
Instance details

Defined in GHC.Tc.Types

Methods

ppr :: TcTyThing -> SDoc Source #

type TcId = Id Source #

data InstInfo a Source #

Constructors

InstInfo 

Fields

Instances
Instances details
OutputableBndrId a => Outputable (InstInfo (GhcPass a)) Source # 
Instance details

Defined in GHC.Tc.Utils.Env

Methods

ppr :: InstInfo (GhcPass a) -> SDoc Source #

iDFunId :: InstInfo a -> DFunId Source #

pprInstInfoDetails :: OutputableBndrId a => InstInfo (GhcPass a) -> SDoc Source #

simpleInstInfoClsTy :: InstInfo a -> (Class, Type) Source #

simpleInstInfoTy :: InstInfo a -> Type Source #

simpleInstInfoTyCon :: InstInfo a -> TyCon Source #

data InstBindings a Source #

Constructors

InstBindings 

Fields

tcExtendGlobalEnv :: [TyThing] -> TcM r -> TcM r Source #

tcExtendTyConEnv :: [TyCon] -> TcM r -> TcM r Source #

tcExtendGlobalEnvImplicit :: [TyThing] -> TcM r -> TcM r Source #

setGlobalTypeEnv :: TcGblEnv -> TypeEnv -> TcM TcGblEnv Source #

tcExtendGlobalValEnv :: [Id] -> TcM a -> TcM a Source #

tcTyThBinders :: [TyThing] -> TcM ThBindEnv Source #

tcLookupLocatedGlobal :: LocatedA Name -> TcM TyThing Source #

tcLookupGlobal :: Name -> TcM TyThing Source #

tcLookupGlobalOnly :: Name -> TcM TyThing Source #

tcLookupTyCon :: Name -> TcM TyCon Source #

tcLookupClass :: Name -> TcM Class Source #

tcLookupDataCon :: Name -> TcM DataCon Source #

tcLookupPatSyn :: Name -> TcM PatSyn Source #

tcLookupConLike :: Name -> TcM ConLike Source #

tcLookupLocatedGlobalId :: LocatedA Name -> TcM Id Source #

tcLookupLocatedTyCon :: LocatedN Name -> TcM TyCon Source #

tcLookupLocatedClass :: LocatedA Name -> TcM Class Source #

tcLookupAxiom :: Name -> TcM (CoAxiom Branched) Source #

lookupGlobal :: HscEnv -> Name -> IO TyThing Source #

lookupGlobal_maybe :: HscEnv -> Name -> IO (MaybeErr SDoc TyThing) Source #

ioLookupDataCon :: HscEnv -> Name -> IO DataCon Source #

addTypecheckedBinds :: TcGblEnv -> [LHsBinds GhcTc] -> TcGblEnv Source #

tcExtendKindEnv :: NameEnv TcTyThing -> TcM r -> TcM r Source #

tcExtendKindEnvList :: [(Name, TcTyThing)] -> TcM r -> TcM r Source #

tcExtendTyVarEnv :: [TyVar] -> TcM r -> TcM r Source #

tcExtendNameTyVarEnv :: [(Name, TcTyVar)] -> TcM r -> TcM r Source #

tcExtendLetEnv :: TopLevelFlag -> TcSigFun -> IsGroupClosed -> [TcId] -> TcM a -> TcM a Source #

tcExtendSigIds :: TopLevelFlag -> [TcId] -> TcM a -> TcM a Source #

tcExtendRecIds :: [(Name, TcId)] -> TcM a -> TcM a Source #

tcExtendIdEnv :: [TcId] -> TcM a -> TcM a Source #

tcExtendIdEnv1 :: Name -> TcId -> TcM a -> TcM a Source #

tcExtendIdEnv2 :: [(Name, TcId)] -> TcM a -> TcM a Source #

tcExtendBinderStack :: [TcBinder] -> TcM a -> TcM a Source #

tcExtendLocalTypeEnv :: TcLclEnv -> [(Name, TcTyThing)] -> TcLclEnv Source #

isTypeClosedLetBndr :: Id -> Bool Source #

tcCheckUsage :: Name -> Mult -> TcM a -> TcM (a, HsWrapper) Source #

tcCheckUsage name mult thing_inside runs thing_inside, checks that the usage of name is a submultiplicity of mult, and removes name from the usage environment. See also Note [Wrapper returned from tcSubMult] in GHC.Tc.Utils.Unify, which applies to the wrapper returned from this function.

tcLookup :: Name -> TcM TcTyThing Source #

tcLookupLocated :: LocatedA Name -> TcM TcTyThing Source #

tcLookupLocalIds :: [Name] -> TcM [TcId] Source #

tcLookupId :: Name -> TcM Id Source #

tcLookupIdMaybe :: Name -> TcM (Maybe Id) Source #

tcLookupTyVar :: Name -> TcM TcTyVar Source #

tcLookupTcTyCon :: HasDebugCallStack => Name -> TcM TcTyCon Source #

tcLookupLcl_maybe :: Name -> TcM (Maybe TcTyThing) Source #

getInLocalScope :: TcM (Name -> Bool) Source #

wrongThingErr :: String -> TcTyThing -> Name -> TcM a Source #

pprBinders :: [Name] -> SDoc Source #

tcAddDataFamConPlaceholders :: [LInstDecl GhcRn] -> TcM a -> TcM a Source #

tcAddPatSynPlaceholders :: [PatSynBind GhcRn GhcRn] -> TcM a -> TcM a Source #

getTypeSigNames :: [LSig GhcRn] -> NameSet Source #

tcExtendRecEnv :: [(Name, TyThing)] -> TcM r -> TcM r Source #

tcInitTidyEnv :: TcM TidyEnv Source #

tcInitOpenTidyEnv :: [TyCoVar] -> TcM TidyEnv Source #

Get a TidyEnv that includes mappings for all vars free in the given type. Useful when tidying open types.

tcLookupInstance :: Class -> [Type] -> TcM ClsInst Source #

tcGetInstEnvs :: TcM InstEnvs Source #

tcExtendRules :: [LRuleDecl GhcTc] -> TcM a -> TcM a Source #

tcGetDefaultTys :: TcM ([Type], (Bool, Bool)) Source #

checkWellStaged :: SDoc -> ThLevel -> ThLevel -> TcM () Source #

tcMetaTy :: Name -> TcM Type Source #

thLevel :: ThStage -> ThLevel Source #

topIdLvl :: Id -> ThLevel Source #

isBrackStage :: ThStage -> Bool Source #

newDFunName :: Class -> [Type] -> SrcSpan -> TcM Name Source #

Make a name for the dict fun for an instance decl. It's an *external* name, like other top-level names, and hence must be made with newGlobalBinder.

newFamInstTyConName :: LocatedN Name -> [Type] -> TcM Name Source #

newFamInstAxiomName :: LocatedN Name -> [[Type]] -> TcM Name Source #

mkStableIdFromString :: String -> Type -> SrcSpan -> (OccName -> OccName) -> TcM TcId Source #

mkStableIdFromName :: Name -> Type -> SrcSpan -> (OccName -> OccName) -> TcM TcId Source #

mkWrapperName :: (MonadIO m, HasModule m) => IORef (ModuleEnv Int) -> String -> String -> m FastString Source #

mkWrapperName ref what nameBase

See Note [Generating fresh names for ccall wrapper] for ref's purpose.

Orphan instances