| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
GhcPlugins
Description
This module is not used by GHC itself. Rather, it exports all of the functions and types you are likely to need when writing a plugin for GHC. So authors of plugins can probably get away simply with saying "import GhcPlugins".
Particularly interesting modules for plugin writers include CoreSyn and CoreMonad.
Synopsis
- module Plugins
- module RdrName
- data OccName
- type FastStringEnv a = UniqFM a
- emptyFsEnv :: FastStringEnv a
- extendFsEnv :: FastStringEnv a -> FastString -> a -> FastStringEnv a
- lookupFsEnv :: FastStringEnv a -> FastString -> Maybe a
- mkFsEnv :: [(FastString, a)] -> FastStringEnv a
- type TidyOccEnv = UniqFM Int
- type OccSet = UniqSet OccName
- data OccEnv a
- class HasOccName name where
- data NameSpace
- tcName :: NameSpace
- clsName :: NameSpace
- tcClsName :: NameSpace
- dataName :: NameSpace
- srcDataName :: NameSpace
- tvName :: NameSpace
- isDataConNameSpace :: NameSpace -> Bool
- isTcClsNameSpace :: NameSpace -> Bool
- isTvNameSpace :: NameSpace -> Bool
- isVarNameSpace :: NameSpace -> Bool
- isValNameSpace :: NameSpace -> Bool
- pprNameSpace :: NameSpace -> SDoc
- pprNonVarNameSpace :: NameSpace -> SDoc
- pprNameSpaceBrief :: NameSpace -> SDoc
- pprOccName :: OccName -> SDoc
- mkOccName :: NameSpace -> String -> OccName
- mkOccNameFS :: NameSpace -> FastString -> OccName
- mkVarOcc :: String -> OccName
- mkVarOccFS :: FastString -> OccName
- mkDataOcc :: String -> OccName
- mkDataOccFS :: FastString -> OccName
- mkTyVarOcc :: String -> OccName
- mkTyVarOccFS :: FastString -> OccName
- mkTcOcc :: String -> OccName
- mkTcOccFS :: FastString -> OccName
- mkClsOcc :: String -> OccName
- mkClsOccFS :: FastString -> OccName
- demoteOccName :: OccName -> Maybe OccName
- nameSpacesRelated :: NameSpace -> NameSpace -> Bool
- emptyOccEnv :: OccEnv a
- unitOccEnv :: OccName -> a -> OccEnv a
- extendOccEnv :: OccEnv a -> OccName -> a -> OccEnv a
- extendOccEnvList :: OccEnv a -> [(OccName, a)] -> OccEnv a
- lookupOccEnv :: OccEnv a -> OccName -> Maybe a
- mkOccEnv :: [(OccName, a)] -> OccEnv a
- elemOccEnv :: OccName -> OccEnv a -> Bool
- foldOccEnv :: (a -> b -> b) -> b -> OccEnv a -> b
- occEnvElts :: OccEnv a -> [a]
- plusOccEnv :: OccEnv a -> OccEnv a -> OccEnv a
- plusOccEnv_C :: (a -> a -> a) -> OccEnv a -> OccEnv a -> OccEnv a
- extendOccEnv_C :: (a -> a -> a) -> OccEnv a -> OccName -> a -> OccEnv a
- extendOccEnv_Acc :: (a -> b -> b) -> (a -> b) -> OccEnv b -> OccName -> a -> OccEnv b
- mapOccEnv :: (a -> b) -> OccEnv a -> OccEnv b
- mkOccEnv_C :: (a -> a -> a) -> [(OccName, a)] -> OccEnv a
- delFromOccEnv :: OccEnv a -> OccName -> OccEnv a
- delListFromOccEnv :: OccEnv a -> [OccName] -> OccEnv a
- filterOccEnv :: (elt -> Bool) -> OccEnv elt -> OccEnv elt
- alterOccEnv :: (Maybe elt -> Maybe elt) -> OccEnv elt -> OccName -> OccEnv elt
- pprOccEnv :: (a -> SDoc) -> OccEnv a -> SDoc
- emptyOccSet :: OccSet
- unitOccSet :: OccName -> OccSet
- mkOccSet :: [OccName] -> OccSet
- extendOccSet :: OccSet -> OccName -> OccSet
- extendOccSetList :: OccSet -> [OccName] -> OccSet
- unionOccSets :: OccSet -> OccSet -> OccSet
- unionManyOccSets :: [OccSet] -> OccSet
- minusOccSet :: OccSet -> OccSet -> OccSet
- elemOccSet :: OccName -> OccSet -> Bool
- isEmptyOccSet :: OccSet -> Bool
- intersectOccSet :: OccSet -> OccSet -> OccSet
- intersectsOccSet :: OccSet -> OccSet -> Bool
- filterOccSet :: (OccName -> Bool) -> OccSet -> OccSet
- occNameString :: OccName -> String
- setOccNameSpace :: NameSpace -> OccName -> OccName
- isVarOcc :: OccName -> Bool
- isTvOcc :: OccName -> Bool
- isTcOcc :: OccName -> Bool
- isValOcc :: OccName -> Bool
- isDataOcc :: OccName -> Bool
- isDataSymOcc :: OccName -> Bool
- isSymOcc :: OccName -> Bool
- parenSymOcc :: OccName -> SDoc -> SDoc
- startsWithUnderscore :: OccName -> Bool
- isDerivedOccName :: OccName -> Bool
- isDefaultMethodOcc :: OccName -> Bool
- isTypeableBindOcc :: OccName -> Bool
- mkDataConWrapperOcc :: OccName -> OccName
- mkWorkerOcc :: OccName -> OccName
- mkMatcherOcc :: OccName -> OccName
- mkBuilderOcc :: OccName -> OccName
- mkDefaultMethodOcc :: OccName -> OccName
- mkClassOpAuxOcc :: OccName -> OccName
- mkDictOcc :: OccName -> OccName
- mkIPOcc :: OccName -> OccName
- mkSpecOcc :: OccName -> OccName
- mkForeignExportOcc :: OccName -> OccName
- mkRepEqOcc :: OccName -> OccName
- mkClassDataConOcc :: OccName -> OccName
- mkNewTyCoOcc :: OccName -> OccName
- mkInstTyCoOcc :: OccName -> OccName
- mkEqPredCoOcc :: OccName -> OccName
- mkCon2TagOcc :: OccName -> OccName
- mkTag2ConOcc :: OccName -> OccName
- mkMaxTagOcc :: OccName -> OccName
- mkTyConRepOcc :: OccName -> OccName
- mkGenR :: OccName -> OccName
- mkGen1R :: OccName -> OccName
- mkVectOcc :: Maybe String -> OccName -> OccName
- mkVectTyConOcc :: Maybe String -> OccName -> OccName
- mkVectDataConOcc :: Maybe String -> OccName -> OccName
- mkVectIsoOcc :: Maybe String -> OccName -> OccName
- mkPADFunOcc :: Maybe String -> OccName -> OccName
- mkPReprTyConOcc :: Maybe String -> OccName -> OccName
- mkPDataTyConOcc :: Maybe String -> OccName -> OccName
- mkPDatasTyConOcc :: Maybe String -> OccName -> OccName
- mkPDataDataConOcc :: Maybe String -> OccName -> OccName
- mkPDatasDataConOcc :: Maybe String -> OccName -> OccName
- mkRecFldSelOcc :: String -> OccName
- mkDataConWorkerOcc :: OccName -> OccName
- mkSuperDictAuxOcc :: Int -> OccName -> OccName
- mkSuperDictSelOcc :: Int -> OccName -> OccName
- mkLocalOcc :: Unique -> OccName -> OccName
- mkInstTyTcOcc :: String -> OccSet -> OccName
- mkDFunOcc :: String -> Bool -> OccSet -> OccName
- mkDataTOcc :: OccName -> OccSet -> OccName
- mkDataCOcc :: OccName -> OccSet -> OccName
- mkMethodOcc :: OccName -> OccName
- emptyTidyOccEnv :: TidyOccEnv
- initTidyOccEnv :: [OccName] -> TidyOccEnv
- avoidClashesOccEnv :: TidyOccEnv -> [OccName] -> TidyOccEnv
- tidyOccName :: TidyOccEnv -> OccName -> (TidyOccEnv, OccName)
- data Name
- data OccName
- type FastStringEnv a = UniqFM a
- emptyFsEnv :: FastStringEnv a
- extendFsEnv :: FastStringEnv a -> FastString -> a -> FastStringEnv a
- lookupFsEnv :: FastStringEnv a -> FastString -> Maybe a
- mkFsEnv :: [(FastString, a)] -> FastStringEnv a
- type TidyOccEnv = UniqFM Int
- type OccSet = UniqSet OccName
- data OccEnv a
- class HasOccName name where
- data NameSpace
- tcName :: NameSpace
- clsName :: NameSpace
- tcClsName :: NameSpace
- dataName :: NameSpace
- srcDataName :: NameSpace
- tvName :: NameSpace
- isDataConNameSpace :: NameSpace -> Bool
- isTcClsNameSpace :: NameSpace -> Bool
- isTvNameSpace :: NameSpace -> Bool
- isVarNameSpace :: NameSpace -> Bool
- isValNameSpace :: NameSpace -> Bool
- pprNameSpace :: NameSpace -> SDoc
- pprNonVarNameSpace :: NameSpace -> SDoc
- pprNameSpaceBrief :: NameSpace -> SDoc
- pprOccName :: OccName -> SDoc
- mkOccName :: NameSpace -> String -> OccName
- mkOccNameFS :: NameSpace -> FastString -> OccName
- mkVarOcc :: String -> OccName
- mkVarOccFS :: FastString -> OccName
- mkDataOcc :: String -> OccName
- mkDataOccFS :: FastString -> OccName
- mkTyVarOcc :: String -> OccName
- mkTyVarOccFS :: FastString -> OccName
- mkTcOcc :: String -> OccName
- mkTcOccFS :: FastString -> OccName
- mkClsOcc :: String -> OccName
- mkClsOccFS :: FastString -> OccName
- demoteOccName :: OccName -> Maybe OccName
- nameSpacesRelated :: NameSpace -> NameSpace -> Bool
- emptyOccEnv :: OccEnv a
- unitOccEnv :: OccName -> a -> OccEnv a
- extendOccEnv :: OccEnv a -> OccName -> a -> OccEnv a
- extendOccEnvList :: OccEnv a -> [(OccName, a)] -> OccEnv a
- lookupOccEnv :: OccEnv a -> OccName -> Maybe a
- mkOccEnv :: [(OccName, a)] -> OccEnv a
- elemOccEnv :: OccName -> OccEnv a -> Bool
- foldOccEnv :: (a -> b -> b) -> b -> OccEnv a -> b
- occEnvElts :: OccEnv a -> [a]
- plusOccEnv :: OccEnv a -> OccEnv a -> OccEnv a
- plusOccEnv_C :: (a -> a -> a) -> OccEnv a -> OccEnv a -> OccEnv a
- extendOccEnv_C :: (a -> a -> a) -> OccEnv a -> OccName -> a -> OccEnv a
- extendOccEnv_Acc :: (a -> b -> b) -> (a -> b) -> OccEnv b -> OccName -> a -> OccEnv b
- mapOccEnv :: (a -> b) -> OccEnv a -> OccEnv b
- mkOccEnv_C :: (a -> a -> a) -> [(OccName, a)] -> OccEnv a
- delFromOccEnv :: OccEnv a -> OccName -> OccEnv a
- delListFromOccEnv :: OccEnv a -> [OccName] -> OccEnv a
- filterOccEnv :: (elt -> Bool) -> OccEnv elt -> OccEnv elt
- alterOccEnv :: (Maybe elt -> Maybe elt) -> OccEnv elt -> OccName -> OccEnv elt
- pprOccEnv :: (a -> SDoc) -> OccEnv a -> SDoc
- emptyOccSet :: OccSet
- unitOccSet :: OccName -> OccSet
- mkOccSet :: [OccName] -> OccSet
- extendOccSet :: OccSet -> OccName -> OccSet
- extendOccSetList :: OccSet -> [OccName] -> OccSet
- unionOccSets :: OccSet -> OccSet -> OccSet
- unionManyOccSets :: [OccSet] -> OccSet
- minusOccSet :: OccSet -> OccSet -> OccSet
- elemOccSet :: OccName -> OccSet -> Bool
- isEmptyOccSet :: OccSet -> Bool
- intersectOccSet :: OccSet -> OccSet -> OccSet
- intersectsOccSet :: OccSet -> OccSet -> Bool
- filterOccSet :: (OccName -> Bool) -> OccSet -> OccSet
- occNameString :: OccName -> String
- setOccNameSpace :: NameSpace -> OccName -> OccName
- isVarOcc :: OccName -> Bool
- isTvOcc :: OccName -> Bool
- isTcOcc :: OccName -> Bool
- isValOcc :: OccName -> Bool
- isDataOcc :: OccName -> Bool
- isDataSymOcc :: OccName -> Bool
- isSymOcc :: OccName -> Bool
- parenSymOcc :: OccName -> SDoc -> SDoc
- startsWithUnderscore :: OccName -> Bool
- isDerivedOccName :: OccName -> Bool
- isDefaultMethodOcc :: OccName -> Bool
- isTypeableBindOcc :: OccName -> Bool
- mkDataConWrapperOcc :: OccName -> OccName
- mkWorkerOcc :: OccName -> OccName
- mkMatcherOcc :: OccName -> OccName
- mkBuilderOcc :: OccName -> OccName
- mkDefaultMethodOcc :: OccName -> OccName
- mkClassOpAuxOcc :: OccName -> OccName
- mkDictOcc :: OccName -> OccName
- mkIPOcc :: OccName -> OccName
- mkSpecOcc :: OccName -> OccName
- mkForeignExportOcc :: OccName -> OccName
- mkRepEqOcc :: OccName -> OccName
- mkClassDataConOcc :: OccName -> OccName
- mkNewTyCoOcc :: OccName -> OccName
- mkInstTyCoOcc :: OccName -> OccName
- mkEqPredCoOcc :: OccName -> OccName
- mkCon2TagOcc :: OccName -> OccName
- mkTag2ConOcc :: OccName -> OccName
- mkMaxTagOcc :: OccName -> OccName
- mkTyConRepOcc :: OccName -> OccName
- mkGenR :: OccName -> OccName
- mkGen1R :: OccName -> OccName
- mkVectOcc :: Maybe String -> OccName -> OccName
- mkVectTyConOcc :: Maybe String -> OccName -> OccName
- mkVectDataConOcc :: Maybe String -> OccName -> OccName
- mkVectIsoOcc :: Maybe String -> OccName -> OccName
- mkPADFunOcc :: Maybe String -> OccName -> OccName
- mkPReprTyConOcc :: Maybe String -> OccName -> OccName
- mkPDataTyConOcc :: Maybe String -> OccName -> OccName
- mkPDatasTyConOcc :: Maybe String -> OccName -> OccName
- mkPDataDataConOcc :: Maybe String -> OccName -> OccName
- mkPDatasDataConOcc :: Maybe String -> OccName -> OccName
- mkRecFldSelOcc :: String -> OccName
- mkDataConWorkerOcc :: OccName -> OccName
- mkSuperDictAuxOcc :: Int -> OccName -> OccName
- mkSuperDictSelOcc :: Int -> OccName -> OccName
- mkLocalOcc :: Unique -> OccName -> OccName
- mkInstTyTcOcc :: String -> OccSet -> OccName
- mkDFunOcc :: String -> Bool -> OccSet -> OccName
- mkDataTOcc :: OccName -> OccSet -> OccName
- mkDataCOcc :: OccName -> OccSet -> OccName
- mkMethodOcc :: OccName -> OccName
- emptyTidyOccEnv :: TidyOccEnv
- initTidyOccEnv :: [OccName] -> TidyOccEnv
- avoidClashesOccEnv :: TidyOccEnv -> [OccName] -> TidyOccEnv
- tidyOccName :: TidyOccEnv -> OccName -> (TidyOccEnv, OccName)
- class NamedThing a where
- data BuiltInSyntax
- nameUnique :: Name -> Unique
- nameOccName :: Name -> OccName
- nameSrcLoc :: Name -> SrcLoc
- nameSrcSpan :: Name -> SrcSpan
- isWiredInName :: Name -> Bool
- wiredInNameTyThing_maybe :: Name -> Maybe TyThing
- isBuiltInSyntax :: Name -> Bool
- isExternalName :: Name -> Bool
- isInternalName :: Name -> Bool
- isHoleName :: Name -> Bool
- nameModule :: Name -> Module
- nameModule_maybe :: Name -> Maybe Module
- nameIsLocalOrFrom :: Module -> Name -> Bool
- nameIsHomePackage :: Module -> Name -> Bool
- nameIsHomePackageImport :: Module -> Name -> Bool
- nameIsFromExternalPackage :: UnitId -> Name -> Bool
- isTyVarName :: Name -> Bool
- isTyConName :: Name -> Bool
- isDataConName :: Name -> Bool
- isValName :: Name -> Bool
- isVarName :: Name -> Bool
- isSystemName :: Name -> Bool
- mkInternalName :: Unique -> OccName -> SrcSpan -> Name
- mkClonedInternalName :: Unique -> Name -> Name
- mkDerivedInternalName :: (OccName -> OccName) -> Unique -> Name -> Name
- mkExternalName :: Unique -> Module -> OccName -> SrcSpan -> Name
- mkWiredInName :: Module -> OccName -> Unique -> TyThing -> BuiltInSyntax -> Name
- mkSystemName :: Unique -> OccName -> Name
- mkSystemNameAt :: Unique -> OccName -> SrcSpan -> Name
- mkSystemVarName :: Unique -> FastString -> Name
- mkSysTvName :: Unique -> FastString -> Name
- mkFCallName :: Unique -> String -> Name
- setNameUnique :: Name -> Unique -> Name
- setNameLoc :: Name -> SrcSpan -> Name
- tidyNameOcc :: Name -> OccName -> Name
- localiseName :: Name -> Name
- mkLocalisedOccName :: Module -> (Maybe String -> OccName -> OccName) -> Name -> OccName
- stableNameCmp :: Name -> Name -> Ordering
- pprModulePrefix :: PprStyle -> Module -> OccName -> SDoc
- pprDefinedAt :: Name -> SDoc
- pprNameDefnLoc :: Name -> SDoc
- nameStableString :: Name -> String
- getSrcLoc :: NamedThing a => a -> SrcLoc
- getSrcSpan :: NamedThing a => a -> SrcSpan
- getOccString :: NamedThing a => a -> String
- getOccFS :: NamedThing a => a -> FastString
- pprInfixName :: (Outputable a, NamedThing a) => a -> SDoc
- pprPrefixName :: NamedThing a => a -> SDoc
- module Var
- data Var
- type OutId = Id
- type OutVar = Var
- type InId = Id
- type InVar = Var
- type JoinId = Id
- type DictId = EvId
- type Id = Var
- idInfo :: HasDebugCallStack => Id -> IdInfo
- idDetails :: Id -> IdDetails
- globaliseId :: Id -> Id
- isId :: Var -> Bool
- isLocalId :: Var -> Bool
- isGlobalId :: Var -> Bool
- isExportedId :: Var -> Bool
- idName :: Id -> Name
- idUnique :: Id -> Unique
- idType :: Id -> Kind
- setIdName :: Id -> Name -> Id
- setIdUnique :: Id -> Unique -> Id
- setIdType :: Id -> Type -> Id
- localiseId :: Id -> Id
- setIdInfo :: Id -> IdInfo -> Id
- modifyIdInfo :: (IdInfo -> IdInfo) -> Id -> Id
- maybeModifyIdInfo :: Maybe IdInfo -> Id -> Id
- mkGlobalId :: IdDetails -> Name -> Type -> IdInfo -> Id
- mkVanillaGlobal :: Name -> Type -> Id
- mkVanillaGlobalWithInfo :: Name -> Type -> IdInfo -> Id
- mkLocalId :: Name -> Type -> Id
- mkLocalCoVar :: Name -> Type -> CoVar
- mkLocalIdOrCoVar :: Name -> Type -> Id
- mkLocalIdOrCoVarWithInfo :: Name -> Type -> IdInfo -> Id
- mkLocalIdWithInfo :: Name -> Type -> IdInfo -> Id
- mkExportedLocalId :: IdDetails -> Name -> Type -> Id
- mkExportedVanillaId :: Name -> Type -> Id
- mkSysLocal :: FastString -> Unique -> Type -> Id
- mkSysLocalOrCoVar :: FastString -> Unique -> Type -> Id
- mkSysLocalM :: MonadUnique m => FastString -> Type -> m Id
- mkSysLocalOrCoVarM :: MonadUnique m => FastString -> Type -> m Id
- mkUserLocal :: OccName -> Unique -> Type -> SrcSpan -> Id
- mkUserLocalOrCoVar :: OccName -> Unique -> Type -> SrcSpan -> Id
- mkWorkerId :: Unique -> Id -> Type -> Id
- mkTemplateLocal :: Int -> Type -> Id
- mkTemplateLocals :: [Type] -> [Id]
- mkTemplateLocalsNum :: Int -> [Type] -> [Id]
- recordSelectorTyCon :: Id -> RecSelParent
- isRecordSelector :: Id -> Bool
- isDataConRecordSelector :: Id -> Bool
- isPatSynRecordSelector :: Id -> Bool
- isNaughtyRecordSelector :: Id -> Bool
- isClassOpId_maybe :: Id -> Maybe Class
- isPrimOpId :: Id -> Bool
- isDFunId :: Id -> Bool
- isPrimOpId_maybe :: Id -> Maybe PrimOp
- isFCallId :: Id -> Bool
- isFCallId_maybe :: Id -> Maybe ForeignCall
- isDataConWorkId :: Id -> Bool
- isDataConWorkId_maybe :: Id -> Maybe DataCon
- isDataConId_maybe :: Id -> Maybe DataCon
- isJoinId :: Var -> Bool
- isJoinId_maybe :: Var -> Maybe JoinArity
- isExitJoinId :: Var -> Bool
- idDataCon :: Id -> DataCon
- hasNoBinding :: Id -> Bool
- isImplicitId :: Id -> Bool
- idIsFrom :: Module -> Id -> Bool
- isDeadBinder :: Id -> Bool
- isEvVar :: Var -> Bool
- isDictId :: Id -> Bool
- idJoinArity :: JoinId -> JoinArity
- asJoinId :: Id -> JoinArity -> JoinId
- zapJoinId :: Id -> Id
- asJoinId_maybe :: Id -> Maybe JoinArity -> Id
- idArity :: Id -> Arity
- setIdArity :: Id -> Arity -> Id
- idCallArity :: Id -> Arity
- setIdCallArity :: Id -> Arity -> Id
- idFunRepArity :: Id -> RepArity
- isBottomingId :: Var -> Bool
- idStrictness :: Id -> StrictSig
- setIdStrictness :: Id -> StrictSig -> Id
- zapIdStrictness :: Id -> Id
- isStrictId :: Id -> Bool
- idUnfolding :: Id -> Unfolding
- realIdUnfolding :: Id -> Unfolding
- setIdUnfolding :: Id -> Unfolding -> Id
- idDemandInfo :: Id -> Demand
- setIdDemandInfo :: Id -> Demand -> Id
- setCaseBndrEvald :: StrictnessMark -> Id -> Id
- idSpecialisation :: Id -> RuleInfo
- idCoreRules :: Id -> [CoreRule]
- idHasRules :: Id -> Bool
- setIdSpecialisation :: Id -> RuleInfo -> Id
- idCafInfo :: Id -> CafInfo
- setIdCafInfo :: Id -> CafInfo -> Id
- idOccInfo :: Id -> OccInfo
- setIdOccInfo :: Id -> OccInfo -> Id
- zapIdOccInfo :: Id -> Id
- idInlinePragma :: Id -> InlinePragma
- setInlinePragma :: Id -> InlinePragma -> Id
- modifyInlinePragma :: Id -> (InlinePragma -> InlinePragma) -> Id
- idInlineActivation :: Id -> Activation
- setInlineActivation :: Id -> Activation -> Id
- idRuleMatchInfo :: Id -> RuleMatchInfo
- isConLikeId :: Id -> Bool
- idOneShotInfo :: Id -> OneShotInfo
- idStateHackOneShotInfo :: Id -> OneShotInfo
- isOneShotBndr :: Var -> Bool
- stateHackOneShot :: OneShotInfo
- typeOneShot :: Type -> OneShotInfo
- isStateHackType :: Type -> Bool
- isProbablyOneShotLambda :: Id -> Bool
- setOneShotLambda :: Id -> Id
- clearOneShotLambda :: Id -> Id
- setIdOneShotInfo :: Id -> OneShotInfo -> Id
- updOneShotInfo :: Id -> OneShotInfo -> Id
- zapLamIdInfo :: Id -> Id
- zapFragileIdInfo :: Id -> Id
- zapIdDemandInfo :: Id -> Id
- zapIdUsageInfo :: Id -> Id
- zapIdUsageEnvInfo :: Id -> Id
- zapIdUsedOnceInfo :: Id -> Id
- zapIdTailCallInfo :: Id -> Id
- zapStableUnfolding :: Id -> Id
- transferPolyIdInfo :: Id -> [Var] -> Id -> Id
- isNeverLevPolyId :: Id -> Bool
- module IdInfo
- module CoreMonad
- module CoreSyn
- module Literal
- module DataCon
- module CoreUtils
- module MkCore
- module CoreFVs
- data InScopeSet
- type TvSubstEnv = TyVarEnv Type
- extendTCvSubst :: TCvSubst -> TyCoVar -> Type -> TCvSubst
- type IdSubstEnv = IdEnv CoreExpr
- data Subst = Subst InScopeSet IdSubstEnv TvSubstEnv CvSubstEnv
- isEmptySubst :: Subst -> Bool
- emptySubst :: Subst
- mkEmptySubst :: InScopeSet -> Subst
- mkSubst :: InScopeSet -> TvSubstEnv -> CvSubstEnv -> IdSubstEnv -> Subst
- substInScope :: Subst -> InScopeSet
- zapSubstEnv :: Subst -> Subst
- extendIdSubst :: Subst -> Id -> CoreExpr -> Subst
- extendIdSubstList :: Subst -> [(Id, CoreExpr)] -> Subst
- extendTvSubst :: Subst -> TyVar -> Type -> Subst
- extendTvSubstList :: Subst -> [(TyVar, Type)] -> Subst
- extendSubst :: Subst -> Var -> CoreArg -> Subst
- extendSubstWithVar :: Subst -> Var -> Var -> Subst
- extendSubstList :: Subst -> [(Var, CoreArg)] -> Subst
- lookupIdSubst :: SDoc -> Subst -> Id -> CoreExpr
- lookupTCvSubst :: Subst -> TyVar -> Type
- delBndr :: Subst -> Var -> Subst
- delBndrs :: Subst -> [Var] -> Subst
- mkOpenSubst :: InScopeSet -> [(Var, CoreArg)] -> Subst
- isInScope :: Var -> Subst -> Bool
- addInScopeSet :: Subst -> VarSet -> Subst
- extendInScope :: Subst -> Var -> Subst
- extendInScopeList :: Subst -> [Var] -> Subst
- extendInScopeIds :: Subst -> [Id] -> Subst
- setInScope :: Subst -> InScopeSet -> Subst
- substExprSC :: SDoc -> Subst -> CoreExpr -> CoreExpr
- substExpr :: SDoc -> Subst -> CoreExpr -> CoreExpr
- substBindSC :: Subst -> CoreBind -> (Subst, CoreBind)
- substBind :: Subst -> CoreBind -> (Subst, CoreBind)
- deShadowBinds :: CoreProgram -> CoreProgram
- substBndr :: Subst -> Var -> (Subst, Var)
- substBndrs :: Subst -> [Var] -> (Subst, [Var])
- substRecBndrs :: Subst -> [Id] -> (Subst, [Id])
- cloneIdBndr :: Subst -> UniqSupply -> Id -> (Subst, Id)
- cloneIdBndrs :: Subst -> UniqSupply -> [Id] -> (Subst, [Id])
- cloneBndrs :: Subst -> UniqSupply -> [Var] -> (Subst, [Var])
- cloneBndr :: Subst -> Unique -> Var -> (Subst, Var)
- cloneRecIdBndrs :: Subst -> UniqSupply -> [Id] -> (Subst, [Id])
- substTy :: Subst -> Type -> Type
- getTCvSubst :: Subst -> TCvSubst
- substCo :: Subst -> Coercion -> Coercion
- substIdInfo :: Subst -> Id -> IdInfo -> Maybe IdInfo
- substUnfoldingSC :: Subst -> Unfolding -> Unfolding
- substUnfolding :: Subst -> Unfolding -> Unfolding
- substIdOcc :: Subst -> Id -> Id
- substSpec :: Subst -> Id -> RuleInfo -> RuleInfo
- substRulesForImportedIds :: Subst -> [CoreRule] -> [CoreRule]
- substDVarSet :: Subst -> DVarSet -> DVarSet
- substTickish :: Subst -> Tickish Id -> Tickish Id
- module Rules
- module Annotations
- module DynFlags
- module Packages
- module Module
- type ThetaType = [PredType]
- type Kind = Type
- type PredType = Type
- data TyBinder
- data TCvSubst = TCvSubst InScopeSet TvSubstEnv CvSubstEnv
- data TyThing
- data Type
- pprType :: Type -> SDoc
- pprKind :: Kind -> SDoc
- data TyPrec
- maybeParen :: TyPrec -> TyPrec -> SDoc -> SDoc
- type TyVarBinder = TyVarBndr TyVar ArgFlag
- data ArgFlag
- data Var
- type TyCoVar = Id
- type TyVar = Var
- isVisibleArgFlag :: ArgFlag -> Bool
- isInvisibleArgFlag :: ArgFlag -> Bool
- sameVis :: ArgFlag -> ArgFlag -> Bool
- binderVar :: TyVarBndr tv argf -> tv
- binderVars :: [TyVarBndr tv argf] -> [tv]
- binderArgFlag :: TyVarBndr tv argf -> argf
- binderKind :: TyVarBndr TyVar argf -> Kind
- mkTyVarBinder :: ArgFlag -> Var -> TyVarBinder
- mkTyVarBinders :: ArgFlag -> [TyVar] -> [TyVarBinder]
- tyVarKind :: TyVar -> Kind
- isTyVar :: Var -> Bool
- liftedTypeKind :: Kind
- splitTyConApp_maybe :: HasDebugCallStack => Type -> Maybe (TyCon, [Type])
- toposortTyVars :: [TyCoVar] -> [TyCoVar]
- tyCoVarsOfTypeWellScoped :: Type -> [TyVar]
- tyCoVarsOfTypesWellScoped :: [Type] -> [TyVar]
- tcView :: Type -> Maybe Type
- coreView :: Type -> Maybe Type
- eqType :: Type -> Type -> Bool
- piResultTy :: HasDebugCallStack => Type -> Type -> Type
- mkCastTy :: Type -> Coercion -> Type
- mkAppTy :: Type -> Type -> Type
- isCoercionTy :: Type -> Bool
- isPredTy :: Type -> Bool
- type TvSubstEnv = TyVarEnv Type
- type KindOrType = Type
- pprShortTyThing :: TyThing -> SDoc
- pprTyThingCategory :: TyThing -> SDoc
- isInvisibleBinder :: TyBinder -> Bool
- isVisibleBinder :: TyBinder -> Bool
- mkTyVarTy :: TyVar -> Type
- mkTyVarTys :: [TyVar] -> [Type]
- mkFunTy :: Type -> Type -> Type
- mkFunTys :: [Type] -> Type -> Type
- mkForAllTy :: TyVar -> ArgFlag -> Type -> Type
- mkForAllTys :: [TyVarBinder] -> Type -> Type
- mkPiTy :: TyBinder -> Type -> Type
- mkPiTys :: [TyBinder] -> Type -> Type
- isCoercionType :: Type -> Bool
- mkTyConTy :: TyCon -> Type
- isRuntimeRepTy :: Type -> Bool
- isRuntimeRepVar :: TyVar -> Bool
- tyCoVarsOfType :: Type -> TyCoVarSet
- tyCoVarsOfTypeDSet :: Type -> DTyCoVarSet
- tyCoFVsOfType :: Type -> FV
- tyCoFVsBndr :: TyVarBinder -> FV -> FV
- tyCoVarsOfTypes :: [Type] -> TyCoVarSet
- coVarsOfType :: Type -> CoVarSet
- coVarsOfTypes :: [Type] -> TyCoVarSet
- closeOverKinds :: TyVarSet -> TyVarSet
- closeOverKindsList :: [TyVar] -> [TyVar]
- noFreeVarsOfType :: Type -> Bool
- emptyTvSubstEnv :: TvSubstEnv
- composeTCvSubstEnv :: InScopeSet -> (TvSubstEnv, CvSubstEnv) -> (TvSubstEnv, CvSubstEnv) -> (TvSubstEnv, CvSubstEnv)
- composeTCvSubst :: TCvSubst -> TCvSubst -> TCvSubst
- emptyTCvSubst :: TCvSubst
- mkEmptyTCvSubst :: InScopeSet -> TCvSubst
- isEmptyTCvSubst :: TCvSubst -> Bool
- mkTCvSubst :: InScopeSet -> (TvSubstEnv, CvSubstEnv) -> TCvSubst
- getTvSubstEnv :: TCvSubst -> TvSubstEnv
- getTCvInScope :: TCvSubst -> InScopeSet
- getTCvSubstRangeFVs :: TCvSubst -> VarSet
- notElemTCvSubst :: Var -> TCvSubst -> Bool
- setTvSubstEnv :: TCvSubst -> TvSubstEnv -> TCvSubst
- zapTCvSubst :: TCvSubst -> TCvSubst
- extendTCvInScope :: TCvSubst -> Var -> TCvSubst
- extendTCvInScopeList :: TCvSubst -> [Var] -> TCvSubst
- extendTCvInScopeSet :: TCvSubst -> VarSet -> TCvSubst
- extendTCvSubst :: TCvSubst -> TyCoVar -> Type -> TCvSubst
- extendTvSubstBinderAndInScope :: TCvSubst -> TyBinder -> Type -> TCvSubst
- extendTvSubstWithClone :: TCvSubst -> TyVar -> TyVar -> TCvSubst
- extendCvSubst :: TCvSubst -> CoVar -> Coercion -> TCvSubst
- extendTvSubstAndInScope :: TCvSubst -> TyVar -> Type -> TCvSubst
- unionTCvSubst :: TCvSubst -> TCvSubst -> TCvSubst
- zipTvSubst :: [TyVar] -> [Type] -> TCvSubst
- mkTvSubstPrs :: [(TyVar, Type)] -> TCvSubst
- zipTyEnv :: [TyVar] -> [Type] -> TvSubstEnv
- zipCoEnv :: [CoVar] -> [Coercion] -> CvSubstEnv
- substTyWith :: HasCallStack => [TyVar] -> [Type] -> Type -> Type
- substTyWithUnchecked :: [TyVar] -> [Type] -> Type -> Type
- substCoWithUnchecked :: [TyVar] -> [Type] -> Coercion -> Coercion
- substTysWith :: [TyVar] -> [Type] -> [Type] -> [Type]
- substTyAddInScope :: TCvSubst -> Type -> Type
- substTyUnchecked :: TCvSubst -> Type -> Type
- substTys :: HasCallStack => TCvSubst -> [Type] -> [Type]
- substTysUnchecked :: TCvSubst -> [Type] -> [Type]
- substTheta :: HasCallStack => TCvSubst -> ThetaType -> ThetaType
- substThetaUnchecked :: TCvSubst -> ThetaType -> ThetaType
- substTyVar :: TCvSubst -> TyVar -> Type
- substTyVars :: TCvSubst -> [TyVar] -> [Type]
- lookupTyVar :: TCvSubst -> TyVar -> Maybe Type
- substCoUnchecked :: TCvSubst -> Coercion -> Coercion
- substTyVarBndr :: HasCallStack => TCvSubst -> TyVar -> (TCvSubst, TyVar)
- cloneTyVarBndr :: TCvSubst -> TyVar -> Unique -> (TCvSubst, TyVar)
- cloneTyVarBndrs :: TCvSubst -> [TyVar] -> UniqSupply -> (TCvSubst, [TyVar])
- pprParendType :: Type -> SDoc
- pprPrecType :: TyPrec -> Type -> SDoc
- pprParendKind :: Kind -> SDoc
- pprClassPred :: Class -> [Type] -> SDoc
- pprTheta :: ThetaType -> SDoc
- pprThetaArrowTy :: ThetaType -> SDoc
- pprSigmaType :: Type -> SDoc
- pprForAll :: [TyVarBinder] -> SDoc
- pprUserForAll :: [TyVarBinder] -> SDoc
- pprTvBndrs :: [TyVarBinder] -> SDoc
- pprTvBndr :: TyVarBinder -> SDoc
- pprTyVars :: [TyVar] -> SDoc
- pprTyVar :: TyVar -> SDoc
- pprTypeApp :: TyCon -> [Type] -> SDoc
- ppSuggestExplicitKinds :: SDoc
- tidyTyCoVarBndrs :: TidyEnv -> [TyCoVar] -> (TidyEnv, [TyCoVar])
- tidyTyCoVarBndr :: TidyEnv -> TyCoVar -> (TidyEnv, TyCoVar)
- tidyTyVarBinder :: TidyEnv -> TyVarBndr TyVar vis -> (TidyEnv, TyVarBndr TyVar vis)
- tidyTyVarBinders :: TidyEnv -> [TyVarBndr TyVar vis] -> (TidyEnv, [TyVarBndr TyVar vis])
- tidyFreeTyCoVars :: TidyEnv -> [TyCoVar] -> TidyEnv
- tidyOpenTyCoVars :: TidyEnv -> [TyCoVar] -> (TidyEnv, [TyCoVar])
- tidyOpenTyCoVar :: TidyEnv -> TyCoVar -> (TidyEnv, TyCoVar)
- tidyTyVarOcc :: TidyEnv -> TyVar -> TyVar
- tidyTypes :: TidyEnv -> [Type] -> [Type]
- tidyType :: TidyEnv -> Type -> Type
- tidyOpenTypes :: TidyEnv -> [Type] -> (TidyEnv, [Type])
- tidyOpenType :: TidyEnv -> Type -> (TidyEnv, Type)
- tidyTopType :: Type -> Type
- tidyOpenKind :: TidyEnv -> Kind -> (TidyEnv, Kind)
- tidyKind :: TidyEnv -> Kind -> Kind
- typeSize :: Type -> Int
- funTyCon :: TyCon
- data PredTree
- data EqRel
- data TyCoMapper env m = TyCoMapper {}
- expandTypeSynonyms :: Type -> Type
- mapType :: Monad m => TyCoMapper env m -> env -> Type -> m Type
- mapCoercion :: Monad m => TyCoMapper env m -> env -> Coercion -> m Coercion
- getTyVar :: String -> Type -> TyVar
- isTyVarTy :: Type -> Bool
- getTyVar_maybe :: Type -> Maybe TyVar
- getCastedTyVar_maybe :: Type -> Maybe (TyVar, CoercionN)
- repGetTyVar_maybe :: Type -> Maybe TyVar
- mkAppTys :: Type -> [Type] -> Type
- splitAppTy_maybe :: Type -> Maybe (Type, Type)
- repSplitAppTy_maybe :: HasDebugCallStack => Type -> Maybe (Type, Type)
- tcRepSplitAppTy_maybe :: Type -> Maybe (Type, Type)
- tcSplitTyConApp_maybe :: HasCallStack => Type -> Maybe (TyCon, [Type])
- tcRepSplitTyConApp_maybe :: HasCallStack => Type -> Maybe (TyCon, [Type])
- splitAppTy :: Type -> (Type, Type)
- splitAppTys :: Type -> (Type, [Type])
- repSplitAppTys :: HasDebugCallStack => Type -> (Type, [Type])
- mkNumLitTy :: Integer -> Type
- isNumLitTy :: Type -> Maybe Integer
- mkStrLitTy :: FastString -> Type
- isStrLitTy :: Type -> Maybe FastString
- userTypeError_maybe :: Type -> Maybe Type
- pprUserTypeErrorTy :: Type -> SDoc
- isFunTy :: Type -> Bool
- splitFunTy :: Type -> (Type, Type)
- splitFunTy_maybe :: Type -> Maybe (Type, Type)
- splitFunTys :: Type -> ([Type], Type)
- funResultTy :: Type -> Type
- funArgTy :: Type -> Type
- piResultTys :: HasDebugCallStack => Type -> [Type] -> Type
- applyTysX :: [TyVar] -> Type -> [Type] -> Type
- mkTyConApp :: TyCon -> [Type] -> Type
- tyConAppTyConPicky_maybe :: Type -> Maybe TyCon
- tyConAppTyCon_maybe :: Type -> Maybe TyCon
- tyConAppTyCon :: Type -> TyCon
- tyConAppArgs_maybe :: Type -> Maybe [Type]
- tyConAppArgs :: Type -> [Type]
- tyConAppArgN :: Int -> Type -> Type
- splitTyConApp :: Type -> (TyCon, [Type])
- repSplitTyConApp_maybe :: HasDebugCallStack => Type -> Maybe (TyCon, [Type])
- splitListTyConApp_maybe :: Type -> Maybe Type
- nextRole :: Type -> Role
- newTyConInstRhs :: TyCon -> [Type] -> Type
- splitCastTy_maybe :: Type -> Maybe (Type, Coercion)
- tyConBindersTyBinders :: [TyConBinder] -> [TyBinder]
- mkCoercionTy :: Coercion -> Type
- isCoercionTy_maybe :: Type -> Maybe Coercion
- stripCoercionTy :: Type -> Coercion
- mkInvForAllTy :: TyVar -> Type -> Type
- mkInvForAllTys :: [TyVar] -> Type -> Type
- mkSpecForAllTys :: [TyVar] -> Type -> Type
- mkVisForAllTys :: [TyVar] -> Type -> Type
- mkLamType :: Var -> Type -> Type
- mkLamTypes :: [Var] -> Type -> Type
- mkTyConBindersPreferAnon :: [TyVar] -> Type -> [TyConBinder]
- splitForAllTys :: Type -> ([TyVar], Type)
- splitForAllTyVarBndrs :: Type -> ([TyVarBinder], Type)
- isForAllTy :: Type -> Bool
- isPiTy :: Type -> Bool
- splitForAllTy :: Type -> (TyVar, Type)
- dropForAlls :: Type -> Type
- splitForAllTy_maybe :: Type -> Maybe (TyVar, Type)
- splitPiTy_maybe :: Type -> Maybe (TyBinder, Type)
- splitPiTy :: Type -> (TyBinder, Type)
- splitPiTys :: Type -> ([TyBinder], Type)
- splitPiTysInvisible :: Type -> ([TyBinder], Type)
- filterOutInvisibleTypes :: TyCon -> [Type] -> [Type]
- partitionInvisibles :: TyCon -> (a -> Type) -> [a] -> ([a], [a])
- isTauTy :: Type -> Bool
- mkAnonBinder :: Type -> TyBinder
- isAnonTyBinder :: TyBinder -> Bool
- isNamedTyBinder :: TyBinder -> Bool
- tyBinderType :: TyBinder -> Type
- binderRelevantType_maybe :: TyBinder -> Maybe Type
- caseBinder :: TyBinder -> (TyVarBinder -> a) -> (Type -> a) -> a
- mkTyBinderTyConBinder :: TyBinder -> SrcSpan -> Unique -> OccName -> TyConBinder
- isClassPred :: PredType -> Bool
- isEqPred :: PredType -> Bool
- isNomEqPred :: PredType -> Bool
- isIPPred :: PredType -> Bool
- isIPTyCon :: TyCon -> Bool
- isIPClass :: Class -> Bool
- isCTupleClass :: Class -> Bool
- isIPPred_maybe :: Type -> Maybe (FastString, Type)
- mkPrimEqPredRole :: Role -> Type -> Type -> PredType
- mkPrimEqPred :: Type -> Type -> Type
- mkHeteroPrimEqPred :: Kind -> Kind -> Type -> Type -> Type
- mkHeteroReprPrimEqPred :: Kind -> Kind -> Type -> Type -> Type
- splitCoercionType_maybe :: Type -> Maybe (Type, Type)
- mkReprPrimEqPred :: Type -> Type -> Type
- equalityTyCon :: Role -> TyCon
- mkClassPred :: Class -> [Type] -> PredType
- isDictTy :: Type -> Bool
- isDictLikeTy :: Type -> Bool
- eqRelRole :: EqRel -> Role
- classifyPredType :: PredType -> PredTree
- getClassPredTys :: PredType -> (Class, [Type])
- getClassPredTys_maybe :: PredType -> Maybe (Class, [Type])
- getEqPredTys :: PredType -> (Type, Type)
- getEqPredTys_maybe :: PredType -> Maybe (Role, Type, Type)
- getEqPredRole :: PredType -> Role
- predTypeEqRel :: PredType -> EqRel
- dVarSetElemsWellScoped :: DVarSet -> [Var]
- mkFamilyTyConApp :: TyCon -> [Type] -> Type
- coAxNthLHS :: CoAxiom br -> Int -> Type
- pprSourceTyCon :: TyCon -> SDoc
- isFamFreeTy :: Type -> Bool
- isLiftedType_maybe :: HasDebugCallStack => Type -> Maybe Bool
- isUnliftedType :: HasDebugCallStack => Type -> Bool
- isRuntimeRepKindedTy :: Type -> Bool
- dropRuntimeRepArgs :: [Type] -> [Type]
- getRuntimeRep_maybe :: HasDebugCallStack => Type -> Maybe Type
- getRuntimeRep :: HasDebugCallStack => Type -> Type
- getRuntimeRepFromKind :: HasDebugCallStack => Type -> Type
- getRuntimeRepFromKind_maybe :: HasDebugCallStack => Type -> Maybe Type
- isUnboxedTupleType :: Type -> Bool
- isUnboxedSumType :: Type -> Bool
- isAlgType :: Type -> Bool
- isDataFamilyAppType :: Type -> Bool
- isStrictType :: HasDebugCallStack => Type -> Bool
- isPrimitiveType :: Type -> Bool
- isValidJoinPointType :: JoinArity -> Type -> Bool
- seqType :: Type -> ()
- seqTypes :: [Type] -> ()
- eqTypeX :: RnEnv2 -> Type -> Type -> Bool
- eqTypes :: [Type] -> [Type] -> Bool
- eqVarBndrs :: RnEnv2 -> [Var] -> [Var] -> Maybe RnEnv2
- nonDetCmpType :: Type -> Type -> Ordering
- nonDetCmpTypes :: [Type] -> [Type] -> Ordering
- nonDetCmpTypeX :: RnEnv2 -> Type -> Type -> Ordering
- nonDetCmpTypesX :: RnEnv2 -> [Type] -> [Type] -> Ordering
- nonDetCmpTc :: TyCon -> TyCon -> Ordering
- typeKind :: HasDebugCallStack => Type -> Kind
- isTypeLevPoly :: Type -> Bool
- resultIsLevPoly :: Type -> Bool
- tyConsOfType :: Type -> UniqSet TyCon
- synTyConResKind :: TyCon -> Kind
- splitVisVarsOfType :: Type -> Pair TyCoVarSet
- splitVisVarsOfTypes :: [Type] -> Pair TyCoVarSet
- modifyJoinResTy :: Int -> (Type -> Type) -> Type -> Type
- setJoinResTy :: Int -> Type -> Type -> Type
- module TyCon
- data UnivCoProvenance
- data Coercion
- data LeftOrRight
- pickLR :: LeftOrRight -> (a, a) -> a
- data Var
- type TyCoVar = Id
- type CoVar = Id
- mkCoVar :: Name -> Type -> CoVar
- isCoVar :: Var -> Bool
- data Role
- data LiftingContext = LC TCvSubst LiftCoEnv
- coercionType :: Coercion -> Type
- coercionKind :: Coercion -> Pair Type
- seqCo :: Coercion -> ()
- liftCoSubst :: HasDebugCallStack => Role -> LiftingContext -> Type -> Coercion
- mkCoercionType :: Role -> Type -> Type -> Type
- coVarRole :: CoVar -> Role
- coVarKindsTypesRole :: CoVar -> (Kind, Kind, Type, Type, Role)
- isReflexiveCo :: Coercion -> Bool
- isReflCo :: Coercion -> Bool
- mkFunCos :: Role -> [Coercion] -> Coercion -> Coercion
- mkProofIrrelCo :: Role -> Coercion -> Coercion -> Coercion -> Coercion
- mkSubCo :: Coercion -> Coercion
- mkKindCo :: Coercion -> Coercion
- mkCoherenceCo :: Coercion -> Coercion -> Coercion
- mkInstCo :: Coercion -> Coercion -> Coercion
- mkLRCo :: LeftOrRight -> Coercion -> Coercion
- mkNthCo :: Int -> Coercion -> Coercion
- mkTransCo :: Coercion -> Coercion -> Coercion
- mkSymCo :: Coercion -> Coercion
- mkUnivCo :: UnivCoProvenance -> Role -> Type -> Type -> Coercion
- mkUnsafeCo :: Role -> Type -> Type -> Coercion
- mkPhantomCo :: Coercion -> Type -> Type -> Coercion
- mkAxiomInstCo :: CoAxiom Branched -> BranchIndex -> [Coercion] -> Coercion
- mkCoVarCo :: CoVar -> Coercion
- mkFunCo :: Role -> Coercion -> Coercion -> Coercion
- mkForAllCo :: TyVar -> Coercion -> Coercion -> Coercion
- mkAppCo :: Coercion -> Coercion -> Coercion
- mkTyConAppCo :: HasDebugCallStack => Role -> TyCon -> [Coercion] -> Coercion
- mkReflCo :: Role -> Type -> Coercion
- type CvSubstEnv = CoVarEnv Coercion
- data CoercionHole
- type CoercionP = Coercion
- type CoercionR = Coercion
- type CoercionN = Coercion
- tyCoVarsOfCo :: Coercion -> TyCoVarSet
- tyCoVarsOfCoDSet :: Coercion -> DTyCoVarSet
- tyCoFVsOfCo :: Coercion -> FV
- tyCoVarsOfCos :: [Coercion] -> TyCoVarSet
- tyCoFVsOfCos :: [Coercion] -> FV
- coVarsOfCo :: Coercion -> CoVarSet
- emptyCvSubstEnv :: CvSubstEnv
- getCvSubstEnv :: TCvSubst -> CvSubstEnv
- extendTvSubstAndInScope :: TCvSubst -> TyVar -> Type -> TCvSubst
- substCoWith :: HasCallStack => [TyVar] -> [Type] -> Coercion -> Coercion
- substCos :: HasCallStack => TCvSubst -> [Coercion] -> [Coercion]
- substCoVar :: TCvSubst -> CoVar -> Coercion
- substCoVars :: TCvSubst -> [CoVar] -> [Coercion]
- lookupCoVar :: TCvSubst -> Var -> Maybe Coercion
- substCoVarBndr :: TCvSubst -> CoVar -> (TCvSubst, CoVar)
- pprCo :: Coercion -> SDoc
- pprParendCo :: Coercion -> SDoc
- tidyCo :: TidyEnv -> Coercion -> Coercion
- tidyCos :: TidyEnv -> [Coercion] -> [Coercion]
- coercionSize :: Coercion -> Int
- type LiftCoEnv = VarEnv Coercion
- data NormaliseStepResult ev
- = NS_Done
- | NS_Abort
- | NS_Step RecTcChecker Type ev
- type NormaliseStepper ev = RecTcChecker -> TyCon -> [Type] -> NormaliseStepResult ev
- coVarName :: CoVar -> Name
- setCoVarUnique :: CoVar -> Unique -> CoVar
- setCoVarName :: CoVar -> Name -> CoVar
- pprCoAxiom :: CoAxiom br -> SDoc
- pprCoAxBranch :: CoAxiom br -> CoAxBranch -> SDoc
- pprCoAxBranchHdr :: CoAxiom br -> BranchIndex -> SDoc
- decomposeCo :: Arity -> Coercion -> [Coercion]
- decomposeFunCo :: Coercion -> (Coercion, Coercion)
- getCoVar_maybe :: Coercion -> Maybe CoVar
- splitTyConAppCo_maybe :: Coercion -> Maybe (TyCon, [Coercion])
- splitAppCo_maybe :: Coercion -> Maybe (Coercion, Coercion)
- splitFunCo_maybe :: Coercion -> Maybe (Coercion, Coercion)
- splitForAllCo_maybe :: Coercion -> Maybe (TyVar, Coercion, Coercion)
- coVarTypes :: CoVar -> Pair Type
- coVarKind :: CoVar -> Type
- mkHeteroCoercionType :: Role -> Kind -> Kind -> Type -> Type -> Type
- isReflCoVar_maybe :: CoVar -> Maybe Coercion
- isReflCo_maybe :: Coercion -> Maybe (Type, Role)
- isReflexiveCo_maybe :: Coercion -> Maybe (Type, Role)
- mkRepReflCo :: Type -> Coercion
- mkNomReflCo :: Type -> Coercion
- mkAppCos :: Coercion -> [Coercion] -> Coercion
- mkTransAppCo :: Role -> Coercion -> Type -> Type -> Role -> Coercion -> Type -> Type -> Role -> Coercion
- mkForAllCos :: [(TyVar, Coercion)] -> Coercion -> Coercion
- mkHomoForAllCos :: [TyVar] -> Coercion -> Coercion
- mkHomoForAllCos_NoRefl :: [TyVar] -> Coercion -> Coercion
- mkCoVarCos :: [CoVar] -> [Coercion]
- isCoVar_maybe :: Coercion -> Maybe CoVar
- mkAxInstCo :: Role -> CoAxiom br -> BranchIndex -> [Type] -> [Coercion] -> Coercion
- mkUnbranchedAxInstCo :: Role -> CoAxiom Unbranched -> [Type] -> [Coercion] -> Coercion
- mkAxInstRHS :: CoAxiom br -> BranchIndex -> [Type] -> [Coercion] -> Type
- mkUnbranchedAxInstRHS :: CoAxiom Unbranched -> [Type] -> [Coercion] -> Type
- mkAxInstLHS :: CoAxiom br -> BranchIndex -> [Type] -> [Coercion] -> Type
- mkUnbranchedAxInstLHS :: CoAxiom Unbranched -> [Type] -> [Coercion] -> Type
- mkHoleCo :: CoercionHole -> Coercion
- mkNthCoRole :: Role -> Int -> Coercion -> Coercion
- mkCoherenceRightCo :: Coercion -> Coercion -> Coercion
- mkCoherenceLeftCo :: Coercion -> Coercion -> Coercion
- downgradeRole :: Role -> Role -> Coercion -> Coercion
- maybeSubCo :: EqRel -> Coercion -> Coercion
- mkAxiomRuleCo :: CoAxiomRule -> [Coercion] -> Coercion
- setNominalRole_maybe :: Coercion -> Maybe Coercion
- mkHomoPhantomCo :: Type -> Type -> Coercion
- toPhantomCo :: Coercion -> Coercion
- tyConRolesX :: Role -> TyCon -> [Role]
- tyConRolesRepresentational :: TyCon -> [Role]
- nthRole :: Role -> TyCon -> Int -> Role
- ltRole :: Role -> Role -> Bool
- promoteCoercion :: Coercion -> Coercion
- castCoercionKind :: Coercion -> Coercion -> Coercion -> Coercion
- mkPiCos :: Role -> [Var] -> Coercion -> Coercion
- mkPiCo :: Role -> Var -> Coercion -> Coercion
- mkCoCast :: Coercion -> Coercion -> Coercion
- instNewTyCon_maybe :: TyCon -> [Type] -> Maybe (Type, Coercion)
- mapStepResult :: (ev1 -> ev2) -> NormaliseStepResult ev1 -> NormaliseStepResult ev2
- composeSteppers :: NormaliseStepper ev -> NormaliseStepper ev -> NormaliseStepper ev
- unwrapNewTypeStepper :: NormaliseStepper Coercion
- topNormaliseTypeX :: NormaliseStepper ev -> (ev -> ev -> ev) -> Type -> Maybe (ev, Type)
- topNormaliseNewType_maybe :: Type -> Maybe (Coercion, Type)
- eqCoercion :: Coercion -> Coercion -> Bool
- eqCoercionX :: RnEnv2 -> Coercion -> Coercion -> Bool
- liftCoSubstWithEx :: Role -> [TyVar] -> [Coercion] -> [TyVar] -> [Type] -> (Type -> Coercion, [Type])
- liftCoSubstWith :: Role -> [TyCoVar] -> [Coercion] -> Type -> Coercion
- emptyLiftingContext :: InScopeSet -> LiftingContext
- mkSubstLiftingContext :: TCvSubst -> LiftingContext
- extendLiftingContext :: LiftingContext -> TyVar -> Coercion -> LiftingContext
- zapLiftingContext :: LiftingContext -> LiftingContext
- substForAllCoBndrCallbackLC :: Bool -> (Coercion -> Coercion) -> LiftingContext -> TyVar -> Coercion -> (LiftingContext, TyVar, Coercion)
- liftCoSubstTyVar :: LiftingContext -> Role -> TyVar -> Maybe Coercion
- liftCoSubstVarBndrCallback :: (LiftingContext -> Type -> (Coercion, a)) -> LiftingContext -> TyVar -> (LiftingContext, TyVar, Coercion, a)
- isMappedByLC :: TyCoVar -> LiftingContext -> Bool
- substLeftCo :: LiftingContext -> Coercion -> Coercion
- substRightCo :: LiftingContext -> Coercion -> Coercion
- swapLiftCoEnv :: LiftCoEnv -> LiftCoEnv
- lcSubstLeft :: LiftingContext -> TCvSubst
- lcSubstRight :: LiftingContext -> TCvSubst
- liftEnvSubstLeft :: TCvSubst -> LiftCoEnv -> TCvSubst
- liftEnvSubstRight :: TCvSubst -> LiftCoEnv -> TCvSubst
- lcTCvSubst :: LiftingContext -> TCvSubst
- lcInScopeSet :: LiftingContext -> InScopeSet
- coercionKinds :: [Coercion] -> Pair [Type]
- coercionKindRole :: Coercion -> (Pair Type, Role)
- coercionRole :: Coercion -> Role
- module TysWiredIn
- module HscTypes
- data SpliceExplicitFlag
- data IntWithInf
- data FractionalLit = FL {}
- data IntegralLit = IL {}
- data InlineSpec
- data InlinePragma = InlinePragma {}
- data RuleMatchInfo
- data Activation
- data CompilerPhase
- type PhaseNum = Int
- data SourceText
- data SuccessFlag
- data DefMethSpec ty
- data TailCallInfo
- type OneBranch = Bool
- type InsideLam = Bool
- type InterestingCxt = Bool
- data OccInfo
- = ManyOccs {
- occ_tail :: !TailCallInfo
- | IAmDead
- | OneOcc { }
- | IAmALoopBreaker {
- occ_rules_only :: !RulesOnly
- occ_tail :: !TailCallInfo
- = ManyOccs {
- data EP a = EP {}
- data TupleSort
- data TyPrec
- data OverlapMode
- data OverlapFlag = OverlapFlag {}
- data DerivStrategy
- data Origin
- data RecFlag
- data Boxity
- data TopLevelFlag
- data LexicalFixity
- data FixityDirection
- data Fixity = Fixity SourceText Int FixityDirection
- type RuleName = FastString
- data WarningTxt
- data StringLiteral = StringLiteral {
- sl_st :: SourceText
- sl_fs :: FastString
- data FunctionOrData
- = IsFunction
- | IsData
- data SwapFlag
- data OneShotInfo
- type Alignment = Int
- type ConTagZ = Int
- type ConTag = Int
- type JoinArity = Int
- type RepArity = Int
- type Arity = Int
- data LeftOrRight
- pickLR :: LeftOrRight -> (a, a) -> a
- fIRST_TAG :: ConTag
- noOneShotInfo :: OneShotInfo
- isOneShotInfo :: OneShotInfo -> Bool
- hasNoOneShotInfo :: OneShotInfo -> Bool
- worstOneShot :: OneShotInfo -> OneShotInfo -> OneShotInfo
- bestOneShot :: OneShotInfo -> OneShotInfo -> OneShotInfo
- flipSwap :: SwapFlag -> SwapFlag
- isSwapped :: SwapFlag -> Bool
- unSwap :: SwapFlag -> (a -> a -> b) -> a -> a -> b
- bumpVersion :: Version -> Version
- initialVersion :: Version
- pprWarningTxtForMsg :: WarningTxt -> SDoc
- pprRuleName :: RuleName -> SDoc
- maxPrecedence :: Int
- minPrecedence :: Int
- defaultFixity :: Fixity
- negateFixity :: Fixity
- funTyFixity :: Fixity
- compareFixity :: Fixity -> Fixity -> (Bool, Bool)
- isNotTopLevel :: TopLevelFlag -> Bool
- isTopLevel :: TopLevelFlag -> Bool
- isBoxed :: Boxity -> Bool
- isRec :: RecFlag -> Bool
- isNonRec :: RecFlag -> Bool
- boolToRecFlag :: Bool -> RecFlag
- isGenerated :: Origin -> Bool
- setOverlapModeMaybe :: OverlapFlag -> Maybe OverlapMode -> OverlapFlag
- hasIncoherentFlag :: OverlapMode -> Bool
- hasOverlappableFlag :: OverlapMode -> Bool
- hasOverlappingFlag :: OverlapMode -> Bool
- maybeParen :: TyPrec -> TyPrec -> SDoc -> SDoc
- tupleSortBoxity :: TupleSort -> Boxity
- boxityTupleSort :: Boxity -> TupleSort
- tupleParens :: TupleSort -> SDoc -> SDoc
- sumParens :: SDoc -> SDoc
- pprAlternative :: (a -> SDoc) -> a -> ConTag -> Arity -> SDoc
- noOccInfo :: OccInfo
- isManyOccs :: OccInfo -> Bool
- seqOccInfo :: OccInfo -> ()
- insideLam :: InsideLam
- notInsideLam :: InsideLam
- oneBranch :: OneBranch
- notOneBranch :: OneBranch
- tailCallInfo :: OccInfo -> TailCallInfo
- zapOccTailCallInfo :: OccInfo -> OccInfo
- isAlwaysTailCalled :: OccInfo -> Bool
- strongLoopBreaker :: OccInfo
- weakLoopBreaker :: OccInfo
- isWeakLoopBreaker :: OccInfo -> Bool
- isStrongLoopBreaker :: OccInfo -> Bool
- isDeadOcc :: OccInfo -> Bool
- isOneOcc :: OccInfo -> Bool
- zapFragileOcc :: OccInfo -> OccInfo
- successIf :: Bool -> SuccessFlag
- succeeded :: SuccessFlag -> Bool
- failed :: SuccessFlag -> Bool
- pprWithSourceText :: SourceText -> SDoc -> SDoc
- isConLike :: RuleMatchInfo -> Bool
- isFunLike :: RuleMatchInfo -> Bool
- noUserInlineSpec :: InlineSpec -> Bool
- defaultInlinePragma :: InlinePragma
- alwaysInlinePragma :: InlinePragma
- neverInlinePragma :: InlinePragma
- inlinePragmaSpec :: InlinePragma -> InlineSpec
- dfunInlinePragma :: InlinePragma
- isDefaultInlinePragma :: InlinePragma -> Bool
- isInlinePragma :: InlinePragma -> Bool
- isInlinablePragma :: InlinePragma -> Bool
- isAnyInlinePragma :: InlinePragma -> Bool
- inlinePragmaSat :: InlinePragma -> Maybe Arity
- inlinePragmaActivation :: InlinePragma -> Activation
- inlinePragmaRuleMatchInfo :: InlinePragma -> RuleMatchInfo
- setInlinePragmaActivation :: InlinePragma -> Activation -> InlinePragma
- setInlinePragmaRuleMatchInfo :: InlinePragma -> RuleMatchInfo -> InlinePragma
- pprInline :: InlinePragma -> SDoc
- pprInlineDebug :: InlinePragma -> SDoc
- isActive :: CompilerPhase -> Activation -> Bool
- isActiveIn :: PhaseNum -> Activation -> Bool
- competesWith :: Activation -> Activation -> Bool
- isNeverActive :: Activation -> Bool
- isAlwaysActive :: Activation -> Bool
- isEarlyActive :: Activation -> Bool
- mkIntegralLit :: Integral a => a -> IntegralLit
- negateIntegralLit :: IntegralLit -> IntegralLit
- mkFractionalLit :: Real a => a -> FractionalLit
- negateFractionalLit :: FractionalLit -> FractionalLit
- integralFractionalLit :: Bool -> Integer -> FractionalLit
- infinity :: IntWithInf
- intGtLimit :: Int -> IntWithInf -> Bool
- treatZeroAsInf :: Int -> IntWithInf
- mkIntWithInf :: Int -> IntWithInf
- module VarSet
- module VarEnv
- module NameSet
- module NameEnv
- module UniqSet
- module UniqFM
- module FiniteMap
- module Util
- module GHC.Serialized
- module SrcLoc
- module Outputable
- module UniqSupply
- class Uniquable a where
- data Unique
- module FastString
Documentation
module Plugins
module RdrName
Occurrence Name
In this context that means: "classified (i.e. as a type name, value name, etc) but not qualified and not yet resolved"
Instances
| Eq OccName Source # | |
| Data OccName Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> OccName -> c OccName Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c OccName Source # toConstr :: OccName -> Constr Source # dataTypeOf :: OccName -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c OccName) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c OccName) Source # gmapT :: (forall b. Data b => b -> b) -> OccName -> OccName Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> OccName -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> OccName -> r Source # gmapQ :: (forall d. Data d => d -> u) -> OccName -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> OccName -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> OccName -> m OccName Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> OccName -> m OccName Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> OccName -> m OccName Source # | |
| Ord OccName Source # | |
| NFData OccName Source # | |
| OutputableBndr OccName Source # | |
| Outputable OccName Source # | |
| Uniquable OccName Source # | |
| Binary OccName Source # | |
| HasOccName OccName Source # | |
type FastStringEnv a = UniqFM a Source #
A non-deterministic set of FastStrings. See Note [Deterministic UniqFM] in UniqDFM for explanation why it's not deterministic and why it matters. Use DFastStringEnv if the set eventually gets converted into a list or folded over in a way where the order changes the generated code.
emptyFsEnv :: FastStringEnv a Source #
extendFsEnv :: FastStringEnv a -> FastString -> a -> FastStringEnv a Source #
lookupFsEnv :: FastStringEnv a -> FastString -> Maybe a Source #
mkFsEnv :: [(FastString, a)] -> FastStringEnv a Source #
type TidyOccEnv = UniqFM Int Source #
Instances
| Data a => Data (OccEnv a) Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> OccEnv a -> c (OccEnv a) Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (OccEnv a) Source # toConstr :: OccEnv a -> Constr Source # dataTypeOf :: OccEnv a -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (OccEnv a)) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (OccEnv a)) Source # gmapT :: (forall b. Data b => b -> b) -> OccEnv a -> OccEnv a Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> OccEnv a -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> OccEnv a -> r Source # gmapQ :: (forall d. Data d => d -> u) -> OccEnv a -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> OccEnv a -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> OccEnv a -> m (OccEnv a) Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> OccEnv a -> m (OccEnv a) Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> OccEnv a -> m (OccEnv a) Source # | |
| Outputable a => Outputable (OccEnv a) Source # | |
class HasOccName name where Source #
Other names in the compiler add additional information to an OccName. This class provides a consistent way to access the underlying OccName.
Minimal complete definition
Instances
| HasOccName Name Source # | |
| HasOccName OccName Source # | |
| HasOccName RdrName Source # | |
| HasOccName Var Source # | |
| HasOccName IfaceConDecl Source # | |
Methods occName :: IfaceConDecl -> OccName Source # | |
| HasOccName IfaceClassOp Source # | |
Methods occName :: IfaceClassOp -> OccName Source # | |
| HasOccName IfaceDecl Source # | |
| HasOccName TcBinder Source # | |
| HasOccName name => HasOccName (IEWrappedName name) Source # | |
Methods occName :: IEWrappedName name -> OccName Source # | |
Instances
| Eq NameSpace Source # | |
| Ord NameSpace Source # | |
| Binary NameSpace Source # | |
isDataConNameSpace :: NameSpace -> Bool Source #
isTcClsNameSpace :: NameSpace -> Bool Source #
isTvNameSpace :: NameSpace -> Bool Source #
isVarNameSpace :: NameSpace -> Bool Source #
isValNameSpace :: NameSpace -> Bool Source #
pprNameSpace :: NameSpace -> SDoc Source #
pprNonVarNameSpace :: NameSpace -> SDoc Source #
pprNameSpaceBrief :: NameSpace -> SDoc Source #
pprOccName :: OccName -> SDoc Source #
mkOccNameFS :: NameSpace -> FastString -> OccName Source #
mkVarOccFS :: FastString -> OccName Source #
mkDataOccFS :: FastString -> OccName Source #
mkTyVarOcc :: String -> OccName Source #
mkTyVarOccFS :: FastString -> OccName Source #
mkTcOccFS :: FastString -> OccName Source #
mkClsOccFS :: FastString -> OccName Source #
emptyOccEnv :: OccEnv a Source #
unitOccEnv :: OccName -> a -> OccEnv a Source #
foldOccEnv :: (a -> b -> b) -> b -> OccEnv a -> b Source #
occEnvElts :: OccEnv a -> [a] Source #
mkOccEnv_C :: (a -> a -> a) -> [(OccName, a)] -> OccEnv a Source #
emptyOccSet :: OccSet Source #
unitOccSet :: OccName -> OccSet Source #
unionManyOccSets :: [OccSet] -> OccSet Source #
isEmptyOccSet :: OccSet -> Bool Source #
occNameString :: OccName -> String Source #
isValOcc :: OccName -> Bool Source #
Value OccNamess are those that are either in
the variable or data constructor namespaces
isDataSymOcc :: OccName -> Bool Source #
Test if the OccName is a data constructor that starts with
a symbol (e.g. :, or [])
isSymOcc :: OccName -> Bool Source #
Test if the OccName is that for any operator (whether
it is a data constructor or variable or whatever)
startsWithUnderscore :: OccName -> Bool Source #
Haskell 98 encourages compilers to suppress warnings about unsed
names in a pattern if they start with _: this implements that test
isDerivedOccName :: OccName -> Bool Source #
Test for definitions internally generated by GHC. This predicte is used to suppress printing of internal definitions in some debug prints
isDefaultMethodOcc :: OccName -> Bool Source #
isTypeableBindOcc :: OccName -> Bool Source #
Is an OccName one of a Typeable TyCon or Module binding?
This is needed as these bindings are renamed differently.
See Note [Grand plan for Typeable] in TcTypeable.
mkDataConWrapperOcc :: OccName -> OccName Source #
mkWorkerOcc :: OccName -> OccName Source #
mkMatcherOcc :: OccName -> OccName Source #
mkBuilderOcc :: OccName -> OccName Source #
mkDefaultMethodOcc :: OccName -> OccName Source #
mkClassOpAuxOcc :: OccName -> OccName Source #
mkForeignExportOcc :: OccName -> OccName Source #
mkRepEqOcc :: OccName -> OccName Source #
mkClassDataConOcc :: OccName -> OccName Source #
mkNewTyCoOcc :: OccName -> OccName Source #
mkInstTyCoOcc :: OccName -> OccName Source #
mkEqPredCoOcc :: OccName -> OccName Source #
mkCon2TagOcc :: OccName -> OccName Source #
mkTag2ConOcc :: OccName -> OccName Source #
mkMaxTagOcc :: OccName -> OccName Source #
mkTyConRepOcc :: OccName -> OccName Source #
mkRecFldSelOcc :: String -> OccName Source #
mkDataConWorkerOcc :: OccName -> OccName Source #
Derive a name for the representation type constructor of a
data/newtype instance.
mkMethodOcc :: OccName -> OccName Source #
initTidyOccEnv :: [OccName] -> TidyOccEnv Source #
avoidClashesOccEnv :: TidyOccEnv -> [OccName] -> TidyOccEnv Source #
tidyOccName :: TidyOccEnv -> OccName -> (TidyOccEnv, OccName) Source #
A unique, unambiguous name for something, containing information about where that thing originated.
Instances
| Eq Name Source # | |
| Data Name Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Name -> c Name Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Name Source # toConstr :: Name -> Constr Source # dataTypeOf :: Name -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Name) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Name) Source # gmapT :: (forall b. Data b => b -> b) -> Name -> Name Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Name -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Name -> r Source # gmapQ :: (forall d. Data d => d -> u) -> Name -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> Name -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Name -> m Name Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Name -> m Name Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Name -> m Name Source # | |
| Ord Name Source # | |
| NFData Name Source # | |
| OutputableBndr Name Source # | |
| Outputable Name Source # | |
| Uniquable Name Source # | |
| Binary Name Source # | Assumes that the |
| HasOccName Name Source # | |
| NamedThing Name Source # | |
Occurrence Name
In this context that means: "classified (i.e. as a type name, value name, etc) but not qualified and not yet resolved"
Instances
| Eq OccName Source # | |
| Data OccName Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> OccName -> c OccName Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c OccName Source # toConstr :: OccName -> Constr Source # dataTypeOf :: OccName -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c OccName) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c OccName) Source # gmapT :: (forall b. Data b => b -> b) -> OccName -> OccName Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> OccName -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> OccName -> r Source # gmapQ :: (forall d. Data d => d -> u) -> OccName -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> OccName -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> OccName -> m OccName Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> OccName -> m OccName Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> OccName -> m OccName Source # | |
| Ord OccName Source # | |
| NFData OccName Source # | |
| OutputableBndr OccName Source # | |
| Outputable OccName Source # | |
| Uniquable OccName Source # | |
| Binary OccName Source # | |
| HasOccName OccName Source # | |
type FastStringEnv a = UniqFM a Source #
A non-deterministic set of FastStrings. See Note [Deterministic UniqFM] in UniqDFM for explanation why it's not deterministic and why it matters. Use DFastStringEnv if the set eventually gets converted into a list or folded over in a way where the order changes the generated code.
emptyFsEnv :: FastStringEnv a Source #
extendFsEnv :: FastStringEnv a -> FastString -> a -> FastStringEnv a Source #
lookupFsEnv :: FastStringEnv a -> FastString -> Maybe a Source #
mkFsEnv :: [(FastString, a)] -> FastStringEnv a Source #
type TidyOccEnv = UniqFM Int Source #
Instances
| Data a => Data (OccEnv a) Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> OccEnv a -> c (OccEnv a) Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (OccEnv a) Source # toConstr :: OccEnv a -> Constr Source # dataTypeOf :: OccEnv a -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (OccEnv a)) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (OccEnv a)) Source # gmapT :: (forall b. Data b => b -> b) -> OccEnv a -> OccEnv a Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> OccEnv a -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> OccEnv a -> r Source # gmapQ :: (forall d. Data d => d -> u) -> OccEnv a -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> OccEnv a -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> OccEnv a -> m (OccEnv a) Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> OccEnv a -> m (OccEnv a) Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> OccEnv a -> m (OccEnv a) Source # | |
| Outputable a => Outputable (OccEnv a) Source # | |
class HasOccName name where Source #
Other names in the compiler add additional information to an OccName. This class provides a consistent way to access the underlying OccName.
Minimal complete definition
Instances
| HasOccName Name Source # | |
| HasOccName OccName Source # | |
| HasOccName RdrName Source # | |
| HasOccName Var Source # | |
| HasOccName IfaceConDecl Source # | |
Methods occName :: IfaceConDecl -> OccName Source # | |
| HasOccName IfaceClassOp Source # | |
Methods occName :: IfaceClassOp -> OccName Source # | |
| HasOccName IfaceDecl Source # | |
| HasOccName TcBinder Source # | |
| HasOccName name => HasOccName (IEWrappedName name) Source # | |
Methods occName :: IEWrappedName name -> OccName Source # | |
Instances
| Eq NameSpace Source # | |
| Ord NameSpace Source # | |
| Binary NameSpace Source # | |
isDataConNameSpace :: NameSpace -> Bool Source #
isTcClsNameSpace :: NameSpace -> Bool Source #
isTvNameSpace :: NameSpace -> Bool Source #
isVarNameSpace :: NameSpace -> Bool Source #
isValNameSpace :: NameSpace -> Bool Source #
pprNameSpace :: NameSpace -> SDoc Source #
pprNonVarNameSpace :: NameSpace -> SDoc Source #
pprNameSpaceBrief :: NameSpace -> SDoc Source #
pprOccName :: OccName -> SDoc Source #
mkOccNameFS :: NameSpace -> FastString -> OccName Source #
mkVarOccFS :: FastString -> OccName Source #
mkDataOccFS :: FastString -> OccName Source #
mkTyVarOcc :: String -> OccName Source #
mkTyVarOccFS :: FastString -> OccName Source #
mkTcOccFS :: FastString -> OccName Source #
mkClsOccFS :: FastString -> OccName Source #
emptyOccEnv :: OccEnv a Source #
unitOccEnv :: OccName -> a -> OccEnv a Source #
foldOccEnv :: (a -> b -> b) -> b -> OccEnv a -> b Source #
occEnvElts :: OccEnv a -> [a] Source #
mkOccEnv_C :: (a -> a -> a) -> [(OccName, a)] -> OccEnv a Source #
emptyOccSet :: OccSet Source #
unitOccSet :: OccName -> OccSet Source #
unionManyOccSets :: [OccSet] -> OccSet Source #
isEmptyOccSet :: OccSet -> Bool Source #
occNameString :: OccName -> String Source #
isValOcc :: OccName -> Bool Source #
Value OccNamess are those that are either in
the variable or data constructor namespaces
isDataSymOcc :: OccName -> Bool Source #
Test if the OccName is a data constructor that starts with
a symbol (e.g. :, or [])
isSymOcc :: OccName -> Bool Source #
Test if the OccName is that for any operator (whether
it is a data constructor or variable or whatever)
startsWithUnderscore :: OccName -> Bool Source #
Haskell 98 encourages compilers to suppress warnings about unsed
names in a pattern if they start with _: this implements that test
isDerivedOccName :: OccName -> Bool Source #
Test for definitions internally generated by GHC. This predicte is used to suppress printing of internal definitions in some debug prints
isDefaultMethodOcc :: OccName -> Bool Source #
isTypeableBindOcc :: OccName -> Bool Source #
Is an OccName one of a Typeable TyCon or Module binding?
This is needed as these bindings are renamed differently.
See Note [Grand plan for Typeable] in TcTypeable.
mkDataConWrapperOcc :: OccName -> OccName Source #
mkWorkerOcc :: OccName -> OccName Source #
mkMatcherOcc :: OccName -> OccName Source #
mkBuilderOcc :: OccName -> OccName Source #
mkDefaultMethodOcc :: OccName -> OccName Source #
mkClassOpAuxOcc :: OccName -> OccName Source #
mkForeignExportOcc :: OccName -> OccName Source #
mkRepEqOcc :: OccName -> OccName Source #
mkClassDataConOcc :: OccName -> OccName Source #
mkNewTyCoOcc :: OccName -> OccName Source #
mkInstTyCoOcc :: OccName -> OccName Source #
mkEqPredCoOcc :: OccName -> OccName Source #
mkCon2TagOcc :: OccName -> OccName Source #
mkTag2ConOcc :: OccName -> OccName Source #
mkMaxTagOcc :: OccName -> OccName Source #
mkTyConRepOcc :: OccName -> OccName Source #
mkRecFldSelOcc :: String -> OccName Source #
mkDataConWorkerOcc :: OccName -> OccName Source #
Derive a name for the representation type constructor of a
data/newtype instance.
mkMethodOcc :: OccName -> OccName Source #
initTidyOccEnv :: [OccName] -> TidyOccEnv Source #
avoidClashesOccEnv :: TidyOccEnv -> [OccName] -> TidyOccEnv Source #
tidyOccName :: TidyOccEnv -> OccName -> (TidyOccEnv, OccName) Source #
class NamedThing a where Source #
A class allowing convenient access to the Name of various datatypes
Minimal complete definition
Instances
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 |
nameUnique :: Name -> Unique Source #
nameOccName :: Name -> OccName Source #
nameSrcLoc :: Name -> SrcLoc Source #
nameSrcSpan :: Name -> SrcSpan Source #
isWiredInName :: Name -> Bool Source #
isBuiltInSyntax :: Name -> Bool Source #
isExternalName :: Name -> Bool Source #
isInternalName :: Name -> Bool Source #
isHoleName :: Name -> Bool Source #
nameModule :: Name -> Module Source #
nameIsLocalOrFrom :: Module -> Name -> Bool Source #
Returns True if the name is
(a) Internal
(b) External but from the specified module
(c) External but from the interactive package
The key idea is that False means: the entity is defined in some other module you can find the details (type, fixity, instances) in some interface file those details will be stored in the EPT or HPT
True means: the entity is defined in this module or earlier in the GHCi session you can find details (type, fixity, instances) in the TcGblEnv or TcLclEnv
The isInteractiveModule part is because successive interactions of a GCHi session
each give rise to a fresh module (Ghci1, Ghci2, etc), but they all come
from the magic interactive package; and all the details are kept in the
TcLclEnv, TcGblEnv, NOT in the HPT or EPT.
See Note [The interactive package] in HscTypes
nameIsFromExternalPackage :: UnitId -> Name -> Bool Source #
Returns True if the Name comes from some other package: neither this pacakge nor the interactive package.
isTyVarName :: Name -> Bool Source #
isTyConName :: Name -> Bool Source #
isDataConName :: Name -> Bool Source #
isSystemName :: Name -> Bool Source #
mkExternalName :: Unique -> Module -> OccName -> SrcSpan -> Name Source #
Create a name which definitely originates in the given module
mkWiredInName :: Module -> OccName -> Unique -> TyThing -> BuiltInSyntax -> Name Source #
Create a name which is actually defined by the compiler itself
mkSystemVarName :: Unique -> FastString -> Name Source #
mkSysTvName :: Unique -> FastString -> Name Source #
localiseName :: Name -> Name Source #
Make the Name into an internal name, regardless of what it was to begin with
mkLocalisedOccName :: Module -> (Maybe String -> OccName -> OccName) -> Name -> OccName Source #
Create a localised variant of a name.
If the name is external, encode the original's module name to disambiguate. SPJ says: this looks like a rather odd-looking function; but it seems to be used only during vectorisation, so I'm not going to worry
stableNameCmp :: Name -> Name -> Ordering Source #
Compare Names lexicographically This only works for Names that originate in the source code or have been tidied.
pprDefinedAt :: Name -> SDoc Source #
pprNameDefnLoc :: Name -> SDoc Source #
nameStableString :: Name -> String Source #
Get a string representation of a Name that's unique and stable
across recompilations. Used for deterministic generation of binds for
derived instances.
eg. "$aeson_70dylHtv1FFGeai1IoxcQr$Data.Aeson.Types.Internal$String"
getSrcLoc :: NamedThing a => a -> SrcLoc Source #
getSrcSpan :: NamedThing a => a -> SrcSpan Source #
getOccString :: NamedThing a => a -> String Source #
getOccFS :: NamedThing a => a -> FastString Source #
pprInfixName :: (Outputable a, NamedThing a) => a -> SDoc Source #
pprPrefixName :: NamedThing a => a -> SDoc Source #
module Var
Variable
Essentially a typed Name, that may also contain some additional information
about the Var and it's use sites.
Instances
| Eq Var Source # | |
| Data Var Source # | |
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 :: (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 # | |
| Ord Var Source # | |
| OutputableBndr Var Source # | |
| Outputable Var Source # | |
| Uniquable Var Source # | |
| HasOccName Var Source # | |
| NamedThing Var Source # | |
globaliseId :: Id -> Id Source #
If it's a local, make it global
isGlobalId :: Var -> Bool Source #
isExportedId :: Var -> Bool Source #
isExportedIdVar means "don't throw this away"
localiseId :: Id -> Id Source #
mkLocalIdOrCoVar :: Name -> Type -> Id Source #
Like mkLocalId, but checks the type to see if it should make a covar
mkLocalIdOrCoVarWithInfo :: Name -> Type -> IdInfo -> Id Source #
Make a local id, with the IdDetails set to CoVarId if the type indicates so.
mkExportedLocalId :: IdDetails -> Name -> Type -> Id Source #
Create a local Id that is marked as exported.
This prevents things attached to it from being removed as dead code.
See Note [Exported LocalIds]
mkSysLocal :: FastString -> Unique -> Type -> Id Source #
mkSysLocalOrCoVar :: FastString -> Unique -> Type -> Id Source #
Like mkSysLocal, but checks to see if we have a covar type
mkSysLocalM :: MonadUnique m => FastString -> Type -> m Id Source #
mkSysLocalOrCoVarM :: MonadUnique m => FastString -> Type -> m Id Source #
mkUserLocalOrCoVar :: OccName -> Unique -> Type -> SrcSpan -> Id Source #
Like mkUserLocal, but checks if we have a coercion type
mkWorkerId :: Unique -> Id -> Type -> Id Source #
Workers get local names. CoreTidy will externalise these if necessary
mkTemplateLocal :: Int -> Type -> Id Source #
Create a template local: a family of system local Ids in bijection with Ints, typically used in unfoldings
mkTemplateLocals :: [Type] -> [Id] Source #
Create a template local for a series of types
mkTemplateLocalsNum :: Int -> [Type] -> [Id] Source #
Create a template local for a series of type, but start from a specified template local
recordSelectorTyCon :: Id -> RecSelParent Source #
isRecordSelector :: Id -> Bool Source #
isDataConRecordSelector :: Id -> Bool Source #
isPatSynRecordSelector :: Id -> Bool Source #
isNaughtyRecordSelector :: Id -> Bool Source #
isPrimOpId :: Id -> Bool Source #
isFCallId_maybe :: Id -> Maybe ForeignCall Source #
isDataConWorkId :: Id -> Bool Source #
isExitJoinId :: Var -> Bool Source #
idDataCon :: Id -> DataCon Source #
Get from either the worker or the wrapper Id to the DataCon. Currently used only in the desugarer.
INVARIANT: idDataCon (dataConWrapId d) = d: remember, dataConWrapId can return either the wrapper or the worker
hasNoBinding :: Id -> Bool Source #
Returns True of an Id which may not have a
binding, even though it is defined in this module.
isImplicitId :: Id -> Bool Source #
isImplicitId tells whether an Ids info is implied by other
declarations, so we don't need to put its signature in an interface
file, even if it's mentioned in some other interface unfolding.
isDeadBinder :: Id -> Bool Source #
idJoinArity :: JoinId -> JoinArity Source #
idCallArity :: Id -> Arity Source #
idFunRepArity :: Id -> RepArity Source #
isBottomingId :: Var -> Bool Source #
Returns true if an application to n args would diverge
idStrictness :: Id -> StrictSig Source #
zapIdStrictness :: Id -> Id Source #
isStrictId :: Id -> Bool Source #
This predicate says whether the Id has a strict demand placed on it or
has a type such that it can always be evaluated strictly (i.e an
unlifted type, as of GHC 7.6). We need to
check separately whether the Id has a so-called "strict type" because if
the demand for the given id hasn't been computed yet but id has a strict
type, we still want isStrictId id to be True.
idUnfolding :: Id -> Unfolding Source #
realIdUnfolding :: Id -> Unfolding Source #
idDemandInfo :: Id -> Demand Source #
setCaseBndrEvald :: StrictnessMark -> Id -> Id Source #
idSpecialisation :: Id -> RuleInfo Source #
idCoreRules :: Id -> [CoreRule] Source #
idHasRules :: Id -> Bool Source #
zapIdOccInfo :: Id -> Id Source #
idInlinePragma :: Id -> InlinePragma Source #
setInlinePragma :: Id -> InlinePragma -> Id infixl 1 Source #
modifyInlinePragma :: Id -> (InlinePragma -> InlinePragma) -> Id Source #
idInlineActivation :: Id -> Activation Source #
setInlineActivation :: Id -> Activation -> Id infixl 1 Source #
idRuleMatchInfo :: Id -> RuleMatchInfo Source #
isConLikeId :: Id -> Bool Source #
idOneShotInfo :: Id -> OneShotInfo Source #
idStateHackOneShotInfo :: Id -> OneShotInfo Source #
Like idOneShotInfo, but taking the Horrible State Hack in to account
See Note [The state-transformer hack] in CoreArity
isOneShotBndr :: Var -> Bool Source #
Returns whether the lambda associated with the Id is certainly applied at most once
This one is the "business end", called externally.
It works on type variables as well as Ids, returning True
Its main purpose is to encapsulate the Horrible State Hack
See Note [The state-transformer hack] in CoreArity
stateHackOneShot :: OneShotInfo Source #
Should we apply the state hack to values of this Type?
typeOneShot :: Type -> OneShotInfo Source #
isStateHackType :: Type -> Bool Source #
isProbablyOneShotLambda :: Id -> Bool Source #
setOneShotLambda :: Id -> Id Source #
clearOneShotLambda :: Id -> Id Source #
setIdOneShotInfo :: Id -> OneShotInfo -> Id infixl 1 Source #
updOneShotInfo :: Id -> OneShotInfo -> Id Source #
zapLamIdInfo :: Id -> Id Source #
zapFragileIdInfo :: Id -> Id Source #
zapIdDemandInfo :: Id -> Id Source #
zapIdUsageInfo :: Id -> Id Source #
zapIdUsageEnvInfo :: Id -> Id Source #
zapIdUsedOnceInfo :: Id -> Id Source #
zapIdTailCallInfo :: Id -> Id Source #
zapStableUnfolding :: Id -> Id Source #
isNeverLevPolyId :: Id -> Bool Source #
module IdInfo
module CoreMonad
module CoreSyn
module Literal
module DataCon
module CoreUtils
module MkCore
module CoreFVs
data InScopeSet Source #
A set of variables that are in scope at some point "Secrets of the Glasgow Haskell Compiler inliner" Section 3.2 provides the motivation for this abstraction.
Instances
| Outputable InScopeSet Source # | |
A substitution environment, containing Id, TyVar, and CoVar
substitutions.
Some invariants apply to how you use the substitution:
- The in-scope set contains at least those
Ids andTyVars that will be in scope after applying the substitution to a term. Precisely, the in-scope set must be a superset of the free vars of the substitution range that might possibly clash with locally-bound variables in the thing being substituted in. - You may apply the substitution only once
There are various ways of setting up the in-scope set such that the first of these invariants hold:
- Arrange that the in-scope set really is all the things in scope
- Arrange that it's the free vars of the range of the substitution
- Make it empty, if you know that all the free vars of the substitution are fresh, and hence can't possibly clash
Constructors
| Subst InScopeSet IdSubstEnv TvSubstEnv CvSubstEnv |
isEmptySubst :: Subst -> Bool Source #
emptySubst :: Subst Source #
mkEmptySubst :: InScopeSet -> Subst Source #
mkSubst :: InScopeSet -> TvSubstEnv -> CvSubstEnv -> IdSubstEnv -> Subst Source #
substInScope :: Subst -> InScopeSet Source #
Find the in-scope set: see CoreSubst
zapSubstEnv :: Subst -> Subst Source #
extendIdSubstList :: Subst -> [(Id, CoreExpr)] -> Subst Source #
Adds multiple Id substitutions to the Subst: see also extendIdSubst
extendTvSubstList :: Subst -> [(TyVar, Type)] -> Subst Source #
Adds multiple TyVar substitutions to the Subst: see also extendTvSubst
extendSubst :: Subst -> Var -> CoreArg -> Subst Source #
Add a substitution appropriate to the thing being substituted
(whether an expression, type, or coercion). See also
extendIdSubst, extendTvSubst, extendCvSubst
extendSubstList :: Subst -> [(Var, CoreArg)] -> Subst Source #
Add a substitution as appropriate to each of the terms being
substituted (whether expressions, types, or coercions). See also
extendSubst.
mkOpenSubst :: InScopeSet -> [(Var, CoreArg)] -> Subst Source #
Simultaneously substitute for a bunch of variables No left-right shadowing ie the substitution for (x y. e) a1 a2 so neither x nor y scope over a1 a2
addInScopeSet :: Subst -> VarSet -> Subst Source #
Add the Var to the in-scope set, but do not remove
any existing substitutions for it
extendInScope :: Subst -> Var -> Subst Source #
Add the Var to the in-scope set: as a side effect,
and remove any existing substitutions for it
extendInScopeList :: Subst -> [Var] -> Subst Source #
Add the Vars to the in-scope set: see also extendInScope
extendInScopeIds :: Subst -> [Id] -> Subst Source #
Optimized version of extendInScopeList that can be used if you are certain
all the things being added are Ids and hence none are TyVars or CoVars
setInScope :: Subst -> InScopeSet -> Subst Source #
deShadowBinds :: CoreProgram -> CoreProgram Source #
De-shadowing the program is sometimes a useful pre-pass. It can be done simply by running over the bindings with an empty substitution, because substitution returns a result that has no-shadowing guaranteed.
(Actually, within a single type there might still be shadowing, because
substTy is a no-op for the empty substitution, but that's probably OK.)
- Aug 09
- This function is not used in GHC at the moment, but seems so short and simple that I'm going to leave it here
substRecBndrs :: Subst -> [Id] -> (Subst, [Id]) Source #
Substitute in a mutually recursive group of Ids
cloneIdBndr :: Subst -> UniqSupply -> Id -> (Subst, Id) Source #
cloneIdBndrs :: Subst -> UniqSupply -> [Id] -> (Subst, [Id]) Source #
Applies cloneIdBndr to a number of Ids, accumulating a final
substitution from left to right
cloneBndrs :: Subst -> UniqSupply -> [Var] -> (Subst, [Var]) Source #
cloneRecIdBndrs :: Subst -> UniqSupply -> [Id] -> (Subst, [Id]) Source #
Clone a mutually recursive group of Ids
getTCvSubst :: Subst -> TCvSubst Source #
substUnfoldingSC :: Subst -> Unfolding -> Unfolding Source #
Substitutes for the Ids within an unfolding
substUnfolding :: Subst -> Unfolding -> Unfolding Source #
Substitutes for the Ids within an unfolding
module Rules
module Annotations
module DynFlags
module Packages
module Module
A type of the form p of kind Constraint represents a value whose type is
the Haskell predicate p, where a predicate is what occurs before
the => in a Haskell type.
We use PredType as documentation to mark those types that we guarantee to have
this kind.
It can be expanded into its representation, but:
- The type checker must treat it as opaque
- The rest of the compiler treats it as transparent
Consider these examples:
f :: (Eq a) => a -> Int
g :: (?x :: Int -> Int) => a -> Int
h :: (r\l) => {r} => {l::Int | r}Here the Eq a and ?x :: Int -> Int and rl are all called "predicates"
A TyBinder represents an argument to a function. TyBinders can be dependent
(Named) or nondependent (Anon). They may also be visible or not.
See Note [TyBinders]
Instances
| Data TyBinder Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> TyBinder -> c TyBinder Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c TyBinder Source # toConstr :: TyBinder -> Constr Source # dataTypeOf :: TyBinder -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c TyBinder) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c TyBinder) Source # gmapT :: (forall b. Data b => b -> b) -> TyBinder -> TyBinder Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> TyBinder -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> TyBinder -> r Source # gmapQ :: (forall d. Data d => d -> u) -> TyBinder -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> TyBinder -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> TyBinder -> m TyBinder Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> TyBinder -> m TyBinder Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> TyBinder -> m TyBinder Source # | |
| Outputable TyBinder Source # | |
Type & coercion substitution
The following invariants must hold of a TCvSubst:
- The in-scope set is needed only to guide the generation of fresh uniques
- In particular, the kind of the type variables in the in-scope set is not relevant
- The substitution is only applied ONCE! This is because in general such application will not reach a fixed point.
Constructors
| TCvSubst InScopeSet TvSubstEnv CvSubstEnv |
Instances
| Data Type Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Type -> c Type Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Type Source # toConstr :: Type -> Constr Source # dataTypeOf :: Type -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Type) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Type) Source # gmapT :: (forall b. Data b => b -> b) -> Type -> Type Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Type -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Type -> r Source # gmapQ :: (forall d. Data d => d -> u) -> Type -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> Type -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Type -> m Type Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Type -> m Type Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Type -> m Type Source # | |
| Outputable Type Source # | |
type TyVarBinder = TyVarBndr TyVar ArgFlag Source #
Type Variable Binder
A TyVarBinder is the binder of a ForAllTy
It's convenient to define this synonym here rather its natural
home in TyCoRep, because it's used in DataCon.hs-boot
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 [TyVarBndrs, TyVarBinders, TyConBinders, and visibility] in TyCoRep
Instances
| Eq ArgFlag Source # | |
| Data ArgFlag Source # | |
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 :: (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 # | |
| Outputable ArgFlag Source # | |
| Binary ArgFlag Source # | |
| Outputable tv => Outputable (TyVarBndr tv ArgFlag) Source # | |
Variable
Essentially a typed Name, that may also contain some additional information
about the Var and it's use sites.
Instances
| Eq Var Source # | |
| Data Var Source # | |
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 :: (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 # | |
| Ord Var Source # | |
| OutputableBndr Var Source # | |
| Outputable Var Source # | |
| Uniquable Var Source # | |
| HasOccName Var Source # | |
| NamedThing Var 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?
binderVars :: [TyVarBndr tv argf] -> [tv] Source #
binderArgFlag :: TyVarBndr tv argf -> argf Source #
mkTyVarBinder :: ArgFlag -> Var -> TyVarBinder Source #
Make a named binder
mkTyVarBinders :: ArgFlag -> [TyVar] -> [TyVarBinder] Source #
Make many named binders
splitTyConApp_maybe :: HasDebugCallStack => Type -> Maybe (TyCon, [Type]) Source #
Attempts to tease a type apart into a type constructor and the application of a number of arguments to that constructor
toposortTyVars :: [TyCoVar] -> [TyCoVar] Source #
Do a topological sort on a list of tyvars, so that binders occur before occurrences E.g. given [ a::k, k::*, b::k ] it'll return a well-scoped list [ k::*, a::k, b::k ]
This is a deterministic sorting operation (that is, doesn't depend on Uniques).
tyCoVarsOfTypeWellScoped :: Type -> [TyVar] Source #
Get the free vars of a type in scoped order
tyCoVarsOfTypesWellScoped :: [Type] -> [TyVar] Source #
Get the free vars of types in scoped order
tcView :: Type -> Maybe Type Source #
Gives the typechecker view of a type. This unwraps synonyms but
leaves Constraint alone. c.f. coreView, which turns Constraint into
TYPE LiftedRep. Returns Nothing if no unwrapping happens.
See also Note [coreView vs tcView] in Type.
coreView :: Type -> Maybe Type Source #
This function Strips off the top layer only of a type synonym
application (if any) its underlying representation type.
Returns Nothing if there is nothing to look through.
This function considers Constraint to be a synonym of TYPE LiftedRep.
By being non-recursive and inlined, this case analysis gets efficiently joined onto the case analysis that the caller is already doing
eqType :: Type -> Type -> Bool Source #
Type equality on source types. Does not look through newtypes or
PredTypes, but it does look through type synonyms.
This first checks that the kinds of the types are equal and then
checks whether the types are equal, ignoring casts and coercions.
(The kind check is a recursive call, but since all kinds have type
Type, there is no need to check the types of kinds.)
See also Note [Non-trivial definitional equality] in TyCoRep.
piResultTy :: HasDebugCallStack => Type -> Type -> Type Source #
mkCastTy :: Type -> Coercion -> Type Source #
Make a CastTy. The Coercion must be nominal. Checks the
Coercion for reflexivity, dropping it if it's reflexive.
See Note [No reflexive casts in types]
isCoercionTy :: Type -> Bool Source #
isPredTy :: Type -> Bool Source #
Is the type suitable to classify a given/wanted in the typechecker?
type KindOrType = Type Source #
The key representation of types within the compiler
pprShortTyThing :: TyThing -> SDoc Source #
pprTyThingCategory :: TyThing -> SDoc Source #
isInvisibleBinder :: TyBinder -> Bool Source #
Does this binder bind an invisible argument?
isVisibleBinder :: TyBinder -> Bool Source #
Does this binder bind a visible argument?
mkTyVarTys :: [TyVar] -> [Type] Source #
mkForAllTys :: [TyVarBinder] -> Type -> Type Source #
Wraps foralls over the type using the provided TyVars from left to right
isCoercionType :: Type -> Bool Source #
mkTyConTy :: TyCon -> Type Source #
Create the plain type constructor type which has been applied to no type arguments at all.
isRuntimeRepTy :: Type -> Bool Source #
Is this the type RuntimeRep?
isRuntimeRepVar :: TyVar -> Bool Source #
Is a tyvar of type RuntimeRep?
tyCoVarsOfType :: Type -> TyCoVarSet Source #
Returns free variables of a type, including kind variables as a non-deterministic set. For type synonyms it does not expand the synonym.
tyCoVarsOfTypeDSet :: Type -> DTyCoVarSet Source #
tyCoFVsOfType that returns free variables of a type in a deterministic
set. For explanation of why using VarSet is not deterministic see
Note [Deterministic FV] in FV.
tyCoFVsOfType :: Type -> FV Source #
The worker for tyCoFVsOfType and tyCoFVsOfTypeList.
The previous implementation used unionVarSet which is O(n+m) and can
make the function quadratic.
It's exported, so that it can be composed with
other functions that compute free variables.
See Note [FV naming conventions] in FV.
Eta-expanded because that makes it run faster (apparently) See Note [FV eta expansion] in FV for explanation.
tyCoFVsBndr :: TyVarBinder -> FV -> FV Source #
tyCoVarsOfTypes :: [Type] -> TyCoVarSet Source #
Returns free variables of types, including kind variables as a non-deterministic set. For type synonyms it does not expand the synonym.
coVarsOfType :: Type -> CoVarSet Source #
coVarsOfTypes :: [Type] -> TyCoVarSet Source #
closeOverKinds :: TyVarSet -> TyVarSet Source #
Add the kind variables free in the kinds of the tyvars in the given set. Returns a non-deterministic set.
closeOverKindsList :: [TyVar] -> [TyVar] Source #
Add the kind variables free in the kinds of the tyvars in the given set. Returns a deterministically ordered list.
noFreeVarsOfType :: Type -> Bool Source #
Returns True if this type has no free variables. Should be the same as isEmptyVarSet . tyCoVarsOfType, but faster in the non-forall case.
composeTCvSubstEnv :: InScopeSet -> (TvSubstEnv, CvSubstEnv) -> (TvSubstEnv, CvSubstEnv) -> (TvSubstEnv, CvSubstEnv) Source #
(compose env1 env2)(x) is env1(env2(x)); i.e. apply env2 then env1.
It assumes that both are idempotent.
Typically, env1 is the refinement to a base substitution env2
composeTCvSubst :: TCvSubst -> TCvSubst -> TCvSubst Source #
Composes two substitutions, applying the second one provided first, like in function composition.
mkEmptyTCvSubst :: InScopeSet -> TCvSubst Source #
isEmptyTCvSubst :: TCvSubst -> Bool Source #
mkTCvSubst :: InScopeSet -> (TvSubstEnv, CvSubstEnv) -> TCvSubst Source #
getTvSubstEnv :: TCvSubst -> TvSubstEnv Source #
getTCvInScope :: TCvSubst -> InScopeSet Source #
getTCvSubstRangeFVs :: TCvSubst -> VarSet Source #
Returns the free variables of the types in the range of a substitution as a non-deterministic set.
setTvSubstEnv :: TCvSubst -> TvSubstEnv -> TCvSubst Source #
zapTCvSubst :: TCvSubst -> TCvSubst Source #
zipTvSubst :: [TyVar] -> [Type] -> TCvSubst Source #
Generates the in-scope set for the TCvSubst from the types in the incoming
environment. No CoVars, please!
mkTvSubstPrs :: [(TyVar, Type)] -> TCvSubst Source #
Generates the in-scope set for the TCvSubst from the types in the
incoming environment. No CoVars, please!
substTyWith :: HasCallStack => [TyVar] -> [Type] -> Type -> Type Source #
Type substitution, see zipTvSubst
substTyWithUnchecked :: [TyVar] -> [Type] -> Type -> Type Source #
Type substitution, see zipTvSubst. Disables sanity checks.
The problems that the sanity checks in substTy catch are described in
Note [The substitution invariant].
The goal of #11371 is to migrate all the calls of substTyUnchecked to
substTy and remove this function. Please don't use in new code.
substCoWithUnchecked :: [TyVar] -> [Type] -> Coercion -> Coercion Source #
Coercion substitution, see zipTvSubst. Disables sanity checks.
The problems that the sanity checks in substCo catch are described in
Note [The substitution invariant].
The goal of #11371 is to migrate all the calls of substCoUnchecked to
substCo and remove this function. Please don't use in new code.
substTysWith :: [TyVar] -> [Type] -> [Type] -> [Type] Source #
Type substitution, see zipTvSubst
substTyAddInScope :: TCvSubst -> Type -> Type Source #
Substitute within a Type after adding the free variables of the type
to the in-scope set. This is useful for the case when the free variables
aren't already in the in-scope set or easily available.
See also Note [The substitution invariant].
substTyUnchecked :: TCvSubst -> Type -> Type Source #
Substitute within a Type disabling the sanity checks.
The problems that the sanity checks in substTy catch are described in
Note [The substitution invariant].
The goal of #11371 is to migrate all the calls of substTyUnchecked to
substTy and remove this function. Please don't use in new code.
substTys :: HasCallStack => TCvSubst -> [Type] -> [Type] Source #
Substitute within several Types
The substitution has to satisfy the invariants described in
Note [The substitution invariant].
substTysUnchecked :: TCvSubst -> [Type] -> [Type] Source #
Substitute within several Types disabling the sanity checks.
The problems that the sanity checks in substTys catch are described in
Note [The substitution invariant].
The goal of #11371 is to migrate all the calls of substTysUnchecked to
substTys and remove this function. Please don't use in new code.
substTheta :: HasCallStack => TCvSubst -> ThetaType -> ThetaType Source #
Substitute within a ThetaType
The substitution has to satisfy the invariants described in
Note [The substitution invariant].
substThetaUnchecked :: TCvSubst -> ThetaType -> ThetaType Source #
Substitute within a ThetaType disabling the sanity checks.
The problems that the sanity checks in substTys catch are described in
Note [The substitution invariant].
The goal of #11371 is to migrate all the calls of substThetaUnchecked to
substTheta and remove this function. Please don't use in new code.
substCoUnchecked :: TCvSubst -> Coercion -> Coercion Source #
Substitute within a Coercion disabling sanity checks.
The problems that the sanity checks in substCo catch are described in
Note [The substitution invariant].
The goal of #11371 is to migrate all the calls of substCoUnchecked to
substCo and remove this function. Please don't use in new code.
substTyVarBndr :: HasCallStack => TCvSubst -> TyVar -> (TCvSubst, TyVar) Source #
cloneTyVarBndrs :: TCvSubst -> [TyVar] -> UniqSupply -> (TCvSubst, [TyVar]) Source #
pprParendType :: Type -> SDoc Source #
pprParendKind :: Kind -> SDoc Source #
pprThetaArrowTy :: ThetaType -> SDoc Source #
pprSigmaType :: Type -> SDoc Source #
pprForAll :: [TyVarBinder] -> SDoc Source #
pprUserForAll :: [TyVarBinder] -> SDoc Source #
Print a user-level forall; see Note [When to print foralls]
pprTvBndrs :: [TyVarBinder] -> SDoc Source #
pprTvBndr :: TyVarBinder -> SDoc Source #
tidyTyCoVarBndrs :: TidyEnv -> [TyCoVar] -> (TidyEnv, [TyCoVar]) Source #
This tidies up a type for printing in an error message, or in an interface file.
It doesn't change the uniques at all, just the print names.
tidyFreeTyCoVars :: TidyEnv -> [TyCoVar] -> TidyEnv Source #
Add the free TyVars to the env in tidy form,
so that we can tidy the type they are free in
tidyOpenTyCoVar :: TidyEnv -> TyCoVar -> (TidyEnv, TyCoVar) Source #
Treat a new TyCoVar as a binder, and give it a fresh tidy name
using the environment if one has not already been allocated. See
also tidyTyCoVarBndr
tidyOpenTypes :: TidyEnv -> [Type] -> (TidyEnv, [Type]) Source #
Grabs the free type variables, tidies them
and then uses tidyType to work over the type itself
tidyTopType :: Type -> Type Source #
Calls tidyType on a top-level type (i.e. with an empty tidying environment)
The (->) type constructor.
(->) :: forall (rep1 :: RuntimeRep) (rep2 :: RuntimeRep).
TYPE rep1 -> TYPE rep2 -> *
A choice of equality relation. This is separate from the type Role
because Phantom does not define a (non-trivial) equality relation.
data TyCoMapper env m Source #
This describes how a "map" operation over a type/coercion should behave
Constructors
| TyCoMapper | |
Fields
| |
expandTypeSynonyms :: Type -> Type Source #
Expand out all type synonyms. Actually, it'd suffice to expand out just the ones that discard type variables (e.g. type Funny a = Int) But we don't know which those are currently, so we just expand all.
expandTypeSynonyms only expands out type synonyms mentioned in the type,
not in the kinds of any TyCon or TyVar mentioned in the type.
Keep this synchronized with synonymTyConsOfType
mapCoercion :: Monad m => TyCoMapper env m -> env -> Coercion -> m Coercion Source #
getTyVar :: String -> Type -> TyVar Source #
Attempts to obtain the type variable underlying a Type, and panics with the
given message if this is not a type variable type. See also getTyVar_maybe
getTyVar_maybe :: Type -> Maybe TyVar Source #
Attempts to obtain the type variable underlying a Type
getCastedTyVar_maybe :: Type -> Maybe (TyVar, CoercionN) Source #
If the type is a tyvar, possibly under a cast, returns it, along with the coercion. Thus, the co is :: kind tv ~N kind type
repGetTyVar_maybe :: Type -> Maybe TyVar Source #
Attempts to obtain the type variable underlying a Type, without
any expansion
splitAppTy_maybe :: Type -> Maybe (Type, Type) Source #
Attempt to take a type application apart, whether it is a function, type constructor, or plain type application. Note that type family applications are NEVER unsaturated by this!
repSplitAppTy_maybe :: HasDebugCallStack => Type -> Maybe (Type, Type) Source #
Does the AppTy split as in splitAppTy_maybe, but assumes that
any Core view stuff is already done
tcRepSplitAppTy_maybe :: Type -> Maybe (Type, Type) Source #
Does the AppTy split as in tcSplitAppTy_maybe, but assumes that
any coreView stuff is already done. Refuses to look through (c => t)
tcSplitTyConApp_maybe :: HasCallStack => Type -> Maybe (TyCon, [Type]) Source #
Split a type constructor application into its type constructor and
applied types. Note that this may fail in the case of a FunTy with an
argument of unknown kind FunTy (e.g. FunTy (a :: k) Int. since the kind
of a isn't of the form TYPE rep). Consequently, you may need to zonk your
type before using this function.
If you only need the TyCon, consider using tcTyConAppTyCon_maybe.
tcRepSplitTyConApp_maybe :: HasCallStack => Type -> Maybe (TyCon, [Type]) Source #
Like tcSplitTyConApp_maybe but doesn't look through type synonyms.
splitAppTy :: Type -> (Type, Type) Source #
Attempts to take a type application apart, as in splitAppTy_maybe,
and panics if this is not possible
splitAppTys :: Type -> (Type, [Type]) Source #
Recursively splits a type as far as is possible, leaving a residual type being applied to and the type arguments applied to it. Never fails, even if that means returning an empty list of type applications.
repSplitAppTys :: HasDebugCallStack => Type -> (Type, [Type]) Source #
Like splitAppTys, but doesn't look through type synonyms
mkNumLitTy :: Integer -> Type Source #
isNumLitTy :: Type -> Maybe Integer Source #
Is this a numeric literal. We also look through type synonyms.
mkStrLitTy :: FastString -> Type Source #
isStrLitTy :: Type -> Maybe FastString Source #
Is this a symbol literal. We also look through type synonyms.
userTypeError_maybe :: Type -> Maybe Type Source #
Is this type a custom user error? If so, give us the kind and the error message.
pprUserTypeErrorTy :: Type -> SDoc Source #
Render a type corresponding to a user type error into a SDoc.
splitFunTy :: Type -> (Type, Type) Source #
Attempts to extract the argument and result types from a type, and
panics if that is not possible. See also splitFunTy_maybe
splitFunTy_maybe :: Type -> Maybe (Type, Type) Source #
Attempts to extract the argument and result types from a type
funResultTy :: Type -> Type Source #
Extract the function result type and panic if that is not possible
funArgTy :: Type -> Type Source #
Extract the function argument type and panic if that is not possible
piResultTys :: HasDebugCallStack => Type -> [Type] -> Type Source #
(piResultTys f_ty [ty1, .., tyn]) gives the type of (f ty1 .. tyn)
where f :: f_ty
piResultTys is interesting because:
1. f_ty may have more for-alls than there are args
2. Less obviously, it may have fewer for-alls
For case 2. think of:
piResultTys (forall a.a) [forall b.b, Int]
This really can happen, but only (I think) in situations involving
undefined. For example:
undefined :: forall a. a
Term: undefined (forall b. b->b) Int
This term should have type (Int -> Int), but notice that
there are more type args than foralls in undefineds type.
mkTyConApp :: TyCon -> [Type] -> Type Source #
A key function: builds a TyConApp or FunTy as appropriate to
its arguments. Applies its arguments to the constructor from left to right.
tyConAppTyConPicky_maybe :: Type -> Maybe TyCon Source #
Retrieve the tycon heading this type, if there is one. Does not look through synonyms.
tyConAppTyCon :: Type -> TyCon Source #
tyConAppArgs :: Type -> [Type] Source #
splitTyConApp :: Type -> (TyCon, [Type]) Source #
Attempts to tease a type apart into a type constructor and the application
of a number of arguments to that constructor. Panics if that is not possible.
See also splitTyConApp_maybe
repSplitTyConApp_maybe :: HasDebugCallStack => Type -> Maybe (TyCon, [Type]) Source #
Like splitTyConApp_maybe, but doesn't look through synonyms. This
assumes the synonyms have already been dealt with.
splitListTyConApp_maybe :: Type -> Maybe Type Source #
Attempts to tease a list type apart and gives the type of the elements if successful (looks through type synonyms)
nextRole :: Type -> Role Source #
What is the role assigned to the next parameter of this type? Usually,
this will be Nominal, but if the type is a TyConApp, we may be able to
do better. The type does *not* have to be well-kinded when applied for this
to work!
newTyConInstRhs :: TyCon -> [Type] -> Type Source #
Unwrap one layer of newtype on a type constructor and its
arguments, using an eta-reduced version of the newtype if possible.
This requires tys to have at least newTyConInstArity tycon elements.
tyConBindersTyBinders :: [TyConBinder] -> [TyBinder] Source #
mkCoercionTy :: Coercion -> Type Source #
stripCoercionTy :: Type -> Coercion Source #
mkInvForAllTy :: TyVar -> Type -> Type Source #
Make a dependent forall over an Inferred (as opposed to Specified) variable
mkInvForAllTys :: [TyVar] -> Type -> Type Source #
Like mkForAllTys, but assumes all variables are dependent and Inferred, a common case
mkSpecForAllTys :: [TyVar] -> Type -> Type Source #
Like mkForAllTys, but assumes all variables are dependent and specified, a common case
mkVisForAllTys :: [TyVar] -> Type -> Type Source #
Like mkForAllTys, but assumes all variables are dependent and visible
mkLamType :: Var -> Type -> Type Source #
Makes a (->) type or an implicit forall type, depending
on whether it is given a type variable or a term variable.
This is used, for example, when producing the type of a lambda.
Always uses Inferred binders.
mkTyConBindersPreferAnon :: [TyVar] -> Type -> [TyConBinder] Source #
Given a list of type-level vars and a result kind, makes TyBinders, preferring anonymous binders if the variable is, in fact, not dependent. e.g. mkTyConBindersPreferAnon (k:*),(b:k),(c:k) We want (k:*) Named, (a;k) Anon, (c:k) Anon
All binders are visible.
splitForAllTys :: Type -> ([TyVar], Type) Source #
Take a ForAllTy apart, returning the list of tyvars and the result type. This always succeeds, even if it returns only an empty list. Note that the result type returned may have free variables that were bound by a forall.
splitForAllTyVarBndrs :: Type -> ([TyVarBinder], Type) Source #
Like splitPiTys but split off only named binders.
isForAllTy :: Type -> Bool Source #
Checks whether this is a proper forall (with a named binder)
splitForAllTy :: Type -> (TyVar, Type) Source #
Take a forall type apart, or panics if that is not possible.
dropForAlls :: Type -> Type Source #
Drops all ForAllTys
splitForAllTy_maybe :: Type -> Maybe (TyVar, Type) Source #
Attempts to take a forall type apart, but only if it's a proper forall, with a named binder
splitPiTy_maybe :: Type -> Maybe (TyBinder, Type) Source #
Attempts to take a forall type apart; works with proper foralls and functions
splitPiTys :: Type -> ([TyBinder], Type) Source #
Split off all TyBinders to a type, splitting both proper foralls and functions
filterOutInvisibleTypes :: TyCon -> [Type] -> [Type] Source #
Given a tycon and its arguments, filters out any invisible arguments
partitionInvisibles :: TyCon -> (a -> Type) -> [a] -> ([a], [a]) Source #
Given a tycon and a list of things (which correspond to arguments), partitions the things into Inferred or Specified ones and Required ones The callback function is necessary for this scenario:
T :: forall k. k -> k partitionInvisibles T [forall m. m -> m -> m, S, R, Q]
After substituting, we get
T (forall m. m -> m -> m) :: (forall m. m -> m -> m) -> forall n. n -> n -> n
Thus, the first argument is invisible, S is visible, R is invisible again,
and Q is visible.
If you're absolutely sure that your tycon's kind doesn't end in a variable, it's OK if the callback function panics, as that's the only time it's consulted.
mkAnonBinder :: Type -> TyBinder Source #
Make an anonymous binder
isAnonTyBinder :: TyBinder -> Bool Source #
Does this binder bind a variable that is not erased? Returns
True for anonymous binders.
isNamedTyBinder :: TyBinder -> Bool Source #
tyBinderType :: TyBinder -> Type Source #
binderRelevantType_maybe :: TyBinder -> Maybe Type Source #
Extract a relevant type, if there is one.
Arguments
| :: TyBinder | binder to scrutinize |
| -> (TyVarBinder -> a) | named case |
| -> (Type -> a) | anonymous case |
| -> a |
Like maybe, but for binders.
mkTyBinderTyConBinder :: TyBinder -> SrcSpan -> Unique -> OccName -> TyConBinder Source #
Manufacture a new TyConBinder from a TyBinder. Anonymous
TyBinders are still assigned names as TyConBinders, so we need
the extra gunk with which to construct a Name. Used when producing
tyConTyVars from a datatype kind signature. Defined here to avoid module
loops.
isClassPred :: PredType -> Bool Source #
isNomEqPred :: PredType -> Bool Source #
isCTupleClass :: Class -> Bool Source #
isIPPred_maybe :: Type -> Maybe (FastString, Type) Source #
mkPrimEqPredRole :: Role -> Type -> Type -> PredType Source #
Makes a lifted equality predicate at the given role
mkPrimEqPred :: Type -> Type -> Type Source #
Creates a primitive type equality predicate. Invariant: the types are not Coercions
mkHeteroPrimEqPred :: Kind -> Kind -> Type -> Type -> Type Source #
Creates a primite type equality predicate with explicit kinds
mkHeteroReprPrimEqPred :: Kind -> Kind -> Type -> Type -> Type Source #
Creates a primitive representational type equality predicate with explicit kinds
splitCoercionType_maybe :: Type -> Maybe (Type, Type) Source #
Try to split up a coercion type into the types that it coerces
equalityTyCon :: Role -> TyCon Source #
isDictLikeTy :: Type -> Bool Source #
classifyPredType :: PredType -> PredTree Source #
getEqPredRole :: PredType -> Role Source #
predTypeEqRel :: PredType -> EqRel Source #
Get the equality relation relevant for a pred type.
dVarSetElemsWellScoped :: DVarSet -> [Var] Source #
Extract a well-scoped list of variables from a deterministic set of variables. The result is deterministic. NB: There used to exist varSetElemsWellScoped :: VarSet -> [Var] which took a non-deterministic set and produced a non-deterministic well-scoped list. If you care about the list being well-scoped you also most likely care about it being in deterministic order.
mkFamilyTyConApp :: TyCon -> [Type] -> Type Source #
Given a family instance TyCon and its arg types, return the corresponding family type. E.g:
data family T a data instance T (Maybe b) = MkT b
Where the instance tycon is :RTL, so:
mkFamilyTyConApp :RTL Int = T (Maybe Int)
coAxNthLHS :: CoAxiom br -> Int -> Type Source #
Get the type on the LHS of a coercion induced by a type/data family instance.
pprSourceTyCon :: TyCon -> SDoc Source #
isFamFreeTy :: Type -> Bool Source #
isLiftedType_maybe :: HasDebugCallStack => Type -> Maybe Bool Source #
Returns Just True if this type is surely lifted, Just False if it is surely unlifted, Nothing if we can't be sure (i.e., it is levity polymorphic), and panics if the kind does not have the shape TYPE r.
isUnliftedType :: HasDebugCallStack => Type -> Bool Source #
See Type for what an unlifted type is. Panics on levity polymorphic types.
isRuntimeRepKindedTy :: Type -> Bool Source #
Is this a type of kind RuntimeRep? (e.g. LiftedRep)
dropRuntimeRepArgs :: [Type] -> [Type] Source #
getRuntimeRep_maybe :: HasDebugCallStack => Type -> Maybe Type Source #
Extract the RuntimeRep classifier of a type. For instance,
getRuntimeRep_maybe Int = LiftedRep. Returns Nothing if this is not
possible.
getRuntimeRep :: HasDebugCallStack => Type -> Type Source #
Extract the RuntimeRep classifier of a type. For instance,
getRuntimeRep_maybe Int = LiftedRep. Panics if this is not possible.
getRuntimeRepFromKind :: HasDebugCallStack => Type -> Type Source #
Extract the RuntimeRep classifier of a type from its kind. For example,
getRuntimeRepFromKind * = LiftedRep; Panics if this is not possible.
getRuntimeRepFromKind_maybe :: HasDebugCallStack => Type -> Maybe Type Source #
Extract the RuntimeRep classifier of a type from its kind. For example,
getRuntimeRepFromKind * = LiftedRep; Returns Nothing if this is not
possible.
isUnboxedTupleType :: Type -> Bool Source #
isUnboxedSumType :: Type -> Bool Source #
isAlgType :: Type -> Bool Source #
See Type for what an algebraic type is. Should only be applied to types, as opposed to e.g. partially saturated type constructors
isDataFamilyAppType :: Type -> Bool Source #
Check whether a type is a data family type
isStrictType :: HasDebugCallStack => Type -> Bool Source #
Computes whether an argument (or let right hand side) should
be computed strictly or lazily, based only on its type.
Currently, it's just isUnliftedType. Panics on levity-polymorphic types.
isPrimitiveType :: Type -> Bool Source #
Returns true of types that are opaque to Haskell.
isValidJoinPointType :: JoinArity -> Type -> Bool Source #
Determine whether a type could be the type of a join point of given total
arity, according to the polymorphism rule. A join point cannot be polymorphic
in its return type, since given
join j a b x y z = e1 in e2,
the types of e1 and e2 must be the same, and a and b are not in scope for e2.
(See Note [The polymorphism rule of join points] in CoreSyn.) Returns False
also if the type simply doesn't have enough arguments.
Note that we need to know how many arguments (type *and* value) the putative join point takes; for instance, if j :: forall a. a -> Int then j could be a binary join point returning an Int, but it could *not* be a unary join point returning a -> Int.
TODO: See Note [Excess polymorphism and join points]
eqTypeX :: RnEnv2 -> Type -> Type -> Bool Source #
Compare types with respect to a (presumably) non-empty RnEnv2.
eqTypes :: [Type] -> [Type] -> Bool Source #
Type equality on lists of types, looking through type synonyms but not newtypes.
nonDetCmpTc :: TyCon -> TyCon -> Ordering Source #
Compare two TyCons. NB: This should never see the "star synonyms",
as recognized by Kind.isStarKindSynonymTyCon. See Note
[Kind Constraint and kind *] in Kind.
See Note [nonDetCmpType nondeterminism]
isTypeLevPoly :: Type -> Bool Source #
Returns True if a type is levity polymorphic. Should be the same as (isKindLevPoly . typeKind) but much faster. Precondition: The type has kind (TYPE blah)
resultIsLevPoly :: Type -> Bool Source #
Looking past all pi-types, is the end result potentially levity polymorphic? Example: True for (forall r (a :: TYPE r). String -> a) Example: False for (forall r1 r2 (a :: TYPE r1) (b :: TYPE r2). a -> b -> Type)
tyConsOfType :: Type -> UniqSet TyCon Source #
All type constructors occurring in the type; looking through type synonyms, but not newtypes. When it finds a Class, it returns the class TyCon.
synTyConResKind :: TyCon -> Kind Source #
splitVisVarsOfType :: Type -> Pair TyCoVarSet Source #
Retrieve the free variables in this type, splitting them based on whether they are used visibly or invisibly. Invisible ones come first.
splitVisVarsOfTypes :: [Type] -> Pair TyCoVarSet Source #
module TyCon
data UnivCoProvenance Source #
For simplicity, we have just one UnivCo that represents a coercion from
some type to some other type, with (in general) no restrictions on the
type. The UnivCoProvenance specifies more exactly what the coercion really
is and why a program should (or shouldn't!) trust the coercion.
It is reasonable to consider each constructor of UnivCoProvenance
as a totally independent coercion form; their only commonality is
that they don't tell you what types they coercion between. (That info
is in the UnivCo constructor of Coercion.
Instances
| Data UnivCoProvenance Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> UnivCoProvenance -> c UnivCoProvenance Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c UnivCoProvenance Source # toConstr :: UnivCoProvenance -> Constr Source # dataTypeOf :: UnivCoProvenance -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c UnivCoProvenance) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c UnivCoProvenance) Source # gmapT :: (forall b. Data b => b -> b) -> UnivCoProvenance -> UnivCoProvenance Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> UnivCoProvenance -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> UnivCoProvenance -> r Source # gmapQ :: (forall d. Data d => d -> u) -> UnivCoProvenance -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> UnivCoProvenance -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> UnivCoProvenance -> m UnivCoProvenance Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> UnivCoProvenance -> m UnivCoProvenance Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> UnivCoProvenance -> m UnivCoProvenance Source # | |
| Outputable UnivCoProvenance Source # | |
A Coercion is concrete evidence of the equality/convertibility
of two types.
Instances
| Data Coercion Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Coercion -> c Coercion Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Coercion Source # toConstr :: Coercion -> Constr Source # dataTypeOf :: Coercion -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Coercion) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Coercion) Source # gmapT :: (forall b. Data b => b -> b) -> Coercion -> Coercion Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Coercion -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Coercion -> r Source # gmapQ :: (forall d. Data d => d -> u) -> Coercion -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> Coercion -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Coercion -> m Coercion Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Coercion -> m Coercion Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Coercion -> m Coercion Source # | |
| Outputable Coercion Source # | |
data LeftOrRight Source #
Instances
| Eq LeftOrRight Source # | |
| Data LeftOrRight Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> LeftOrRight -> c LeftOrRight Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c LeftOrRight Source # toConstr :: LeftOrRight -> Constr Source # dataTypeOf :: LeftOrRight -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c LeftOrRight) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c LeftOrRight) Source # gmapT :: (forall b. Data b => b -> b) -> LeftOrRight -> LeftOrRight Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> LeftOrRight -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> LeftOrRight -> r Source # gmapQ :: (forall d. Data d => d -> u) -> LeftOrRight -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> LeftOrRight -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> LeftOrRight -> m LeftOrRight Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> LeftOrRight -> m LeftOrRight Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> LeftOrRight -> m LeftOrRight Source # | |
| Outputable LeftOrRight Source # | |
| Binary LeftOrRight Source # | |
Methods put_ :: BinHandle -> LeftOrRight -> IO () Source # put :: BinHandle -> LeftOrRight -> IO (Bin LeftOrRight) Source # | |
pickLR :: LeftOrRight -> (a, a) -> a Source #
Variable
Essentially a typed Name, that may also contain some additional information
about the Var and it's use sites.
Instances
| Eq Var Source # | |
| Data Var Source # | |
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 :: (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 # | |
| Ord Var Source # | |
| OutputableBndr Var Source # | |
| Outputable Var Source # | |
| Uniquable Var Source # | |
| HasOccName Var Source # | |
| NamedThing Var Source # | |
Constructors
| Nominal | |
| Representational | |
| Phantom |
Instances
| Eq Role Source # | |
| Data Role Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Role -> c Role Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Role Source # toConstr :: Role -> Constr Source # dataTypeOf :: Role -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Role) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Role) Source # gmapT :: (forall b. Data b => b -> b) -> Role -> Role Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Role -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Role -> r Source # gmapQ :: (forall d. Data d => d -> u) -> Role -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> Role -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Role -> m Role Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Role -> m Role Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Role -> m Role Source # | |
| Ord Role Source # | |
| Outputable Role Source # | |
| Binary Role Source # | |
data LiftingContext Source #
Instances
| Outputable LiftingContext Source # | |
coercionType :: Coercion -> Type Source #
coercionKind :: Coercion -> Pair Type Source #
If it is the case that
c :: (t1 ~ t2)
i.e. the kind of c relates t1 and t2, then coercionKind c = Pair t1 t2.
liftCoSubst :: HasDebugCallStack => Role -> LiftingContext -> Type -> Coercion Source #
liftCoSubst role lc ty produces a coercion (at role role)
that coerces between lc_left(ty) and lc_right(ty), where
lc_left is a substitution mapping type variables to the left-hand
types of the mapped coercions in lc, and similar for lc_right.
mkCoercionType :: Role -> Type -> Type -> Type Source #
Makes a coercion type from two types: the types whose equality
is proven by the relevant Coercion
isReflexiveCo :: Coercion -> Bool Source #
Slowly checks if the coercion is reflexive. Don't call this in a loop, as it walks over the entire coercion.
isReflCo :: Coercion -> Bool Source #
Tests if this coercion is obviously reflexive. Guaranteed to work
very quickly. Sometimes a coercion can be reflexive, but not obviously
so. c.f. isReflexiveCo
Arguments
| :: Role | role of the created coercion, "r" |
| -> Coercion | :: phi1 ~N phi2 |
| -> Coercion | g1 :: phi1 |
| -> Coercion | g2 :: phi2 |
| -> Coercion | :: g1 ~r g2 |
Make a "coercion between coercions".
mkSymCo :: Coercion -> Coercion Source #
Create a symmetric version of the given Coercion that asserts
equality between the same types but in the other "direction", so
a kind of t1 ~ t2 becomes the kind t2 ~ t1.
Arguments
| :: UnivCoProvenance | |
| -> Role | role of the built coercion, "r" |
| -> Type | t1 :: k1 |
| -> Type | t2 :: k2 |
| -> Coercion | :: t1 ~r t2 |
Make a universal coercion between two arbitrary types.
mkUnsafeCo :: Role -> Type -> Type -> Coercion Source #
Manufacture an unsafe coercion from thin air.
Currently (May 14) this is used only to implement the
unsafeCoerce# primitive. Optimise by pushing
down through type constructors.
mkPhantomCo :: Coercion -> Type -> Type -> Coercion Source #
Make a phantom coercion between two types. The coercion passed in must be a nominal coercion between the kinds of the types.
mkAxiomInstCo :: CoAxiom Branched -> BranchIndex -> [Coercion] -> Coercion Source #
mkForAllCo :: TyVar -> Coercion -> Coercion -> Coercion Source #
Make a Coercion from a tyvar, a kind coercion, and a body coercion. The kind of the tyvar should be the left-hand kind of the kind coercion.
mkTyConAppCo :: HasDebugCallStack => Role -> TyCon -> [Coercion] -> Coercion Source #
Apply a type constructor to a list of coercions. It is the caller's responsibility to get the roles correct on argument coercions.
data CoercionHole Source #
A coercion to be filled in by the type-checker. See Note [Coercion holes]
Instances
| Data CoercionHole Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> CoercionHole -> c CoercionHole Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c CoercionHole Source # toConstr :: CoercionHole -> Constr Source # dataTypeOf :: CoercionHole -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c CoercionHole) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c CoercionHole) Source # gmapT :: (forall b. Data b => b -> b) -> CoercionHole -> CoercionHole Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> CoercionHole -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> CoercionHole -> r Source # gmapQ :: (forall d. Data d => d -> u) -> CoercionHole -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> CoercionHole -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> CoercionHole -> m CoercionHole Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> CoercionHole -> m CoercionHole Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> CoercionHole -> m CoercionHole Source # | |
| Outputable CoercionHole Source # | |
tyCoVarsOfCo :: Coercion -> TyCoVarSet Source #
tyCoVarsOfCoDSet :: Coercion -> DTyCoVarSet Source #
Get a deterministic set of the vars free in a coercion
tyCoFVsOfCo :: Coercion -> FV Source #
tyCoVarsOfCos :: [Coercion] -> TyCoVarSet Source #
tyCoFVsOfCos :: [Coercion] -> FV Source #
coVarsOfCo :: Coercion -> CoVarSet Source #
getCvSubstEnv :: TCvSubst -> CvSubstEnv Source #
substCoWith :: HasCallStack => [TyVar] -> [Type] -> Coercion -> Coercion Source #
Coercion substitution, see zipTvSubst
substCos :: HasCallStack => TCvSubst -> [Coercion] -> [Coercion] Source #
Substitute within several Coercions
The substitution has to satisfy the invariants described in
Note [The substitution invariant].
pprParendCo :: Coercion -> SDoc Source #
coercionSize :: Coercion -> Int Source #
data NormaliseStepResult ev Source #
The result of stepping in a normalisation function.
See topNormaliseTypeX.
Constructors
| NS_Done | Nothing more to do |
| NS_Abort | Utter failure. The outer function should fail too. |
| NS_Step RecTcChecker Type ev | We stepped, yielding new bits; ^ ev is evidence; Usually a co :: old type ~ new type |
type NormaliseStepper ev = RecTcChecker -> TyCon -> [Type] -> NormaliseStepResult ev Source #
A function to check if we can reduce a type by one step. Used
with topNormaliseTypeX.
pprCoAxiom :: CoAxiom br -> SDoc Source #
pprCoAxBranch :: CoAxiom br -> CoAxBranch -> SDoc Source #
pprCoAxBranchHdr :: CoAxiom br -> BranchIndex -> SDoc Source #
getCoVar_maybe :: Coercion -> Maybe CoVar Source #
Attempts to obtain the type variable underlying a Coercion
splitTyConAppCo_maybe :: Coercion -> Maybe (TyCon, [Coercion]) Source #
Attempts to tease a coercion apart into a type constructor and the application of a number of coercion arguments to that constructor
splitAppCo_maybe :: Coercion -> Maybe (Coercion, Coercion) Source #
Attempt to take a coercion application apart.
isReflCo_maybe :: Coercion -> Maybe (Type, Role) Source #
Returns the type coerced if this coercion is reflexive. Guaranteed
to work very quickly. Sometimes a coercion can be reflexive, but not
obviously so. c.f. isReflexiveCo_maybe
isReflexiveCo_maybe :: Coercion -> Maybe (Type, Role) Source #
Extracts the coerced type from a reflexive coercion. This potentially walks over the entire coercion, so avoid doing this in a loop.
mkRepReflCo :: Type -> Coercion Source #
Make a representational reflexive coercion
mkNomReflCo :: Type -> Coercion Source #
Make a nominal reflexive coercion
Arguments
| :: Role | r1 |
| -> Coercion | co1 :: ty1a ~r1 ty1b |
| -> Type | ty1a |
| -> Type | ty1b |
| -> Role | r2 |
| -> Coercion | co2 :: ty2a ~r2 ty2b |
| -> Type | ty2a |
| -> Type | ty2b |
| -> Role | r3 |
| -> Coercion | :: ty1a ty2a ~r3 ty1b ty2b |
Like mkAppCo, but allows the second coercion to be other than
nominal. See Note [mkTransAppCo]. Role r3 cannot be more stringent
than either r1 or r2.
mkHomoForAllCos :: [TyVar] -> Coercion -> Coercion Source #
Make a Coercion quantified over a type variable; the variable has the same type in both sides of the coercion
mkHomoForAllCos_NoRefl :: [TyVar] -> Coercion -> Coercion Source #
Like mkHomoForAllCos, but doesn't check if the inner coercion
is reflexive.
mkCoVarCos :: [CoVar] -> [Coercion] Source #
isCoVar_maybe :: Coercion -> Maybe CoVar Source #
Extract a covar, if possible. This check is dirty. Be ashamed of yourself. (It's dirty because it cares about the structure of a coercion, which is morally reprehensible.)
mkAxInstCo :: Role -> CoAxiom br -> BranchIndex -> [Type] -> [Coercion] -> Coercion Source #
mkUnbranchedAxInstCo :: Role -> CoAxiom Unbranched -> [Type] -> [Coercion] -> Coercion Source #
mkAxInstRHS :: CoAxiom br -> BranchIndex -> [Type] -> [Coercion] -> Type Source #
mkUnbranchedAxInstRHS :: CoAxiom Unbranched -> [Type] -> [Coercion] -> Type Source #
mkAxInstLHS :: CoAxiom br -> BranchIndex -> [Type] -> [Coercion] -> Type Source #
Return the left-hand type of the axiom, when the axiom is instantiated at the types given.
mkUnbranchedAxInstLHS :: CoAxiom Unbranched -> [Type] -> [Coercion] -> Type Source #
Instantiate the left-hand side of an unbranched axiom
mkHoleCo :: CoercionHole -> Coercion Source #
Make a coercion from a coercion hole
mkCoherenceRightCo :: Coercion -> Coercion -> Coercion infixl 5 Source #
A CoherenceCo c1 c2 applies the coercion c2 to the left-hand type in the kind of c1. This function uses sym to get the coercion on the right-hand type of c1. Thus, if c1 :: s ~ t, then mkCoherenceRightCo c1 c2 has the kind (s ~ (t |> c2)) down through type constructors. The second coercion must be representational.
mkCoherenceLeftCo :: Coercion -> Coercion -> Coercion infixl 5 Source #
An explicitly directed synonym of mkCoherenceCo. The second coercion must be representational.
downgradeRole :: Role -> Role -> Coercion -> Coercion Source #
Like downgradeRole_maybe, but panics if the change isn't a downgrade.
See Note [Role twiddling functions]
maybeSubCo :: EqRel -> Coercion -> Coercion Source #
If the EqRel is ReprEq, makes a SubCo; otherwise, does nothing. Note that the input coercion should always be nominal.
mkAxiomRuleCo :: CoAxiomRule -> [Coercion] -> Coercion Source #
setNominalRole_maybe :: Coercion -> Maybe Coercion Source #
Converts a coercion to be nominal, if possible. See Note [Role twiddling functions]
mkHomoPhantomCo :: Type -> Type -> Coercion Source #
Make a phantom coercion between two types of the same kind.
toPhantomCo :: Coercion -> Coercion Source #
tyConRolesRepresentational :: TyCon -> [Role] Source #
promoteCoercion :: Coercion -> Coercion Source #
like mkKindCo, but aggressively & recursively optimizes to avoid using a KindCo constructor. The output role is nominal.
castCoercionKind :: Coercion -> Coercion -> Coercion -> Coercion Source #
Creates a new coercion with both of its types casted by different casts castCoercionKind g h1 h2, where g :: t1 ~ t2, has type (t1 |> h1) ~ (t2 |> h2) The second and third coercions must be nominal.
mkPiCo :: Role -> Var -> Coercion -> Coercion Source #
Make a forall Coercion, where both types related by the coercion
are quantified over the same type variable.
instNewTyCon_maybe :: TyCon -> [Type] -> Maybe (Type, Coercion) Source #
If co :: T ts ~ rep_ty then:
instNewTyCon_maybe T ts = Just (rep_ty, co)
Checks for a newtype, and for being saturated
mapStepResult :: (ev1 -> ev2) -> NormaliseStepResult ev1 -> NormaliseStepResult ev2 Source #
composeSteppers :: NormaliseStepper ev -> NormaliseStepper ev -> NormaliseStepper ev Source #
Try one stepper and then try the next, if the first doesn't make progress. So if it returns NS_Done, it means that both steppers are satisfied
unwrapNewTypeStepper :: NormaliseStepper Coercion Source #
A NormaliseStepper that unwraps newtypes, careful not to fall into
a loop. If it would fall into a loop, it produces NS_Abort.
topNormaliseTypeX :: NormaliseStepper ev -> (ev -> ev -> ev) -> Type -> Maybe (ev, Type) Source #
A general function for normalising the top-level of a type. It continues
to use the provided NormaliseStepper until that function fails, and then
this function returns. The roles of the coercions produced by the
NormaliseStepper must all be the same, which is the role returned from
the call to topNormaliseTypeX.
Typically ev is Coercion.
If topNormaliseTypeX step plus ty = Just (ev, ty')
then ty ~ev1~ t1 ~ev2~ t2 ... ~evn~ ty'
and ev = ev1 plus ev2 plus ... plus evn
If it returns Nothing then no newtype unwrapping could happen
topNormaliseNewType_maybe :: Type -> Maybe (Coercion, Type) Source #
Sometimes we want to look through a newtype and get its associated coercion.
This function strips off newtype layers enough to reveal something that isn't
a newtype. Specifically, here's the invariant:
topNormaliseNewType_maybe rec_nts ty = Just (co, ty')
then (a) co : ty0 ~ ty'.
(b) ty' is not a newtype.
The function returns Nothing for non-newtypes,
or unsaturated applications
This function does *not* look through type families, because it has no access to the type family environment. If you do have that at hand, consider to use topNormaliseType_maybe, which should be a drop-in replacement for topNormaliseNewType_maybe If topNormliseNewType_maybe ty = Just (co, ty'), then co : ty ~R ty'
eqCoercionX :: RnEnv2 -> Coercion -> Coercion -> Bool Source #
Compare two Coercions, with respect to an RnEnv2
liftCoSubstWithEx :: Role -> [TyVar] -> [Coercion] -> [TyVar] -> [Type] -> (Type -> Coercion, [Type]) Source #
Arguments
| :: LiftingContext | original LC |
| -> TyVar | new variable to map... |
| -> Coercion | ...to this lifted version |
| -> LiftingContext |
Extend a lifting context with a new type mapping.
zapLiftingContext :: LiftingContext -> LiftingContext Source #
Erase the environments in a lifting context
substForAllCoBndrCallbackLC :: Bool -> (Coercion -> Coercion) -> LiftingContext -> TyVar -> Coercion -> (LiftingContext, TyVar, Coercion) Source #
Like substForAllCoBndr, but works on a lifting context
liftCoSubstTyVar :: LiftingContext -> Role -> TyVar -> Maybe Coercion Source #
liftCoSubstVarBndrCallback :: (LiftingContext -> Type -> (Coercion, a)) -> LiftingContext -> TyVar -> (LiftingContext, TyVar, Coercion, a) Source #
isMappedByLC :: TyCoVar -> LiftingContext -> Bool Source #
Is a var in the domain of a lifting context?
substLeftCo :: LiftingContext -> Coercion -> Coercion Source #
substRightCo :: LiftingContext -> Coercion -> Coercion Source #
lcSubstLeft :: LiftingContext -> TCvSubst Source #
lcTCvSubst :: LiftingContext -> TCvSubst Source #
Extract the underlying substitution from the LiftingContext
lcInScopeSet :: LiftingContext -> InScopeSet Source #
Get the InScopeSet from a LiftingContext
coercionKinds :: [Coercion] -> Pair [Type] Source #
Apply coercionKind to multiple Coercions
coercionKindRole :: Coercion -> (Pair Type, Role) Source #
Get a coercion's kind and role. Why both at once? See Note [Computing a coercion kind and role]
coercionRole :: Coercion -> Role Source #
Retrieve the role from a coercion.
module TysWiredIn
module HscTypes
data SpliceExplicitFlag Source #
Constructors
| ExplicitSplice | = $(f x y) |
| ImplicitSplice | = f x y, i.e. a naked top level expression |
Instances
data IntWithInf Source #
An integer or infinity
Instances
| Eq IntWithInf Source # | |
| Num IntWithInf Source # | |
Methods (+) :: IntWithInf -> IntWithInf -> IntWithInf Source # (-) :: IntWithInf -> IntWithInf -> IntWithInf Source # (*) :: IntWithInf -> IntWithInf -> IntWithInf Source # negate :: IntWithInf -> IntWithInf Source # abs :: IntWithInf -> IntWithInf Source # signum :: IntWithInf -> IntWithInf Source # fromInteger :: Integer -> IntWithInf Source # | |
| Ord IntWithInf Source # | |
Methods compare :: IntWithInf -> IntWithInf -> Ordering # (<) :: IntWithInf -> IntWithInf -> Bool # (<=) :: IntWithInf -> IntWithInf -> Bool # (>) :: IntWithInf -> IntWithInf -> Bool # (>=) :: IntWithInf -> IntWithInf -> Bool # max :: IntWithInf -> IntWithInf -> IntWithInf # min :: IntWithInf -> IntWithInf -> IntWithInf # | |
| Outputable IntWithInf Source # | |
data FractionalLit Source #
Fractional Literal
Used (instead of Rational) to represent exactly the floating point literal that we encountered in the user's source program. This allows us to pretty-print exactly what the user wrote, which is important e.g. for floating point numbers that can't represented as Doubles (we used to via Double for pretty-printing). See also #2245.
Instances
data IntegralLit Source #
Integral Literal
Used (instead of Integer) to represent negative zegative zero which is required for NegativeLiterals extension to correctly parse `-0::Double` as negative zero. See also #13211.
Instances
data InlineSpec Source #
Inline Specification
Constructors
| Inline | |
| Inlinable | |
| NoInline | |
| NoUserInline |
Instances
| Eq InlineSpec Source # | |
| Data InlineSpec Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> InlineSpec -> c InlineSpec Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c InlineSpec Source # toConstr :: InlineSpec -> Constr Source # dataTypeOf :: InlineSpec -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c InlineSpec) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c InlineSpec) Source # gmapT :: (forall b. Data b => b -> b) -> InlineSpec -> InlineSpec Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> InlineSpec -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> InlineSpec -> r Source # gmapQ :: (forall d. Data d => d -> u) -> InlineSpec -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> InlineSpec -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> InlineSpec -> m InlineSpec Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> InlineSpec -> m InlineSpec Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> InlineSpec -> m InlineSpec Source # | |
| Show InlineSpec Source # | |
| Outputable InlineSpec Source # | |
| Binary InlineSpec Source # | |
Methods put_ :: BinHandle -> InlineSpec -> IO () Source # put :: BinHandle -> InlineSpec -> IO (Bin InlineSpec) Source # | |
data InlinePragma Source #
Constructors
| InlinePragma | |
Fields
| |
Instances
| Eq InlinePragma Source # | |
| Data InlinePragma Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> InlinePragma -> c InlinePragma Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c InlinePragma Source # toConstr :: InlinePragma -> Constr Source # dataTypeOf :: InlinePragma -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c InlinePragma) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c InlinePragma) Source # gmapT :: (forall b. Data b => b -> b) -> InlinePragma -> InlinePragma Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> InlinePragma -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> InlinePragma -> r Source # gmapQ :: (forall d. Data d => d -> u) -> InlinePragma -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> InlinePragma -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> InlinePragma -> m InlinePragma Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> InlinePragma -> m InlinePragma Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> InlinePragma -> m InlinePragma Source # | |
| Outputable InlinePragma Source # | |
| Binary InlinePragma Source # | |
Methods put_ :: BinHandle -> InlinePragma -> IO () Source # put :: BinHandle -> InlinePragma -> IO (Bin InlinePragma) Source # | |
data RuleMatchInfo Source #
Rule Match Information
Instances
data Activation Source #
Constructors
| NeverActive | |
| AlwaysActive | |
| ActiveBefore SourceText PhaseNum | |
| ActiveAfter SourceText PhaseNum |
Instances
| Eq Activation Source # | |
| Data Activation Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Activation -> c Activation Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Activation Source # toConstr :: Activation -> Constr Source # dataTypeOf :: Activation -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Activation) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Activation) Source # gmapT :: (forall b. Data b => b -> b) -> Activation -> Activation Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Activation -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Activation -> r Source # gmapQ :: (forall d. Data d => d -> u) -> Activation -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> Activation -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Activation -> m Activation Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Activation -> m Activation Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Activation -> m Activation Source # | |
| Outputable Activation Source # | |
| Binary Activation Source # | |
Methods put_ :: BinHandle -> Activation -> IO () Source # put :: BinHandle -> Activation -> IO (Bin Activation) Source # | |
data CompilerPhase Source #
Constructors
| Phase PhaseNum | |
| InitialPhase |
Instances
| Outputable CompilerPhase Source # | |
data SourceText Source #
Constructors
| SourceText String | |
| NoSourceText | For when code is generated, e.g. TH, deriving. The pretty printer will then make its own representation of the item. |
Instances
data SuccessFlag Source #
Instances
| Outputable SuccessFlag Source # | |
data DefMethSpec ty Source #
Default Method Specification
Instances
| Outputable (DefMethSpec ty) Source # | |
| Binary (DefMethSpec IfaceType) Source # | |
data TailCallInfo Source #
Constructors
| AlwaysTailCalled JoinArity | |
| NoTailCallInfo |
Instances
| Eq TailCallInfo Source # | |
| Outputable TailCallInfo Source # | |
type InterestingCxt = Bool Source #
Interesting Context
identifier Occurrence Information
Constructors
| ManyOccs | There are many occurrences, or unknown occurrences |
Fields
| |
| IAmDead | Marks unused variables. Sometimes useful for lambda and case-bound variables. |
| OneOcc | Occurs exactly once (per branch), not inside a rule |
Fields
| |
| IAmALoopBreaker | This identifier breaks a loop of mutually recursive functions. The field marks whether it is only a loop breaker due to a reference in a rule |
Fields
| |
Constructors
| BoxedTuple | |
| UnboxedTuple | |
| ConstraintTuple |
Instances
| Eq TupleSort Source # | |
| Data TupleSort Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> TupleSort -> c TupleSort Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c TupleSort Source # toConstr :: TupleSort -> Constr Source # dataTypeOf :: TupleSort -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c TupleSort) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c TupleSort) Source # gmapT :: (forall b. Data b => b -> b) -> TupleSort -> TupleSort Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> TupleSort -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> TupleSort -> r Source # gmapQ :: (forall d. Data d => d -> u) -> TupleSort -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> TupleSort -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> TupleSort -> m TupleSort Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> TupleSort -> m TupleSort Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> TupleSort -> m TupleSort Source # | |
| Binary TupleSort Source # | |
data OverlapMode Source #
Constructors
| NoOverlap SourceText | This instance must not overlap another |
| Overlappable SourceText | Silently ignore this instance if you find a more specific one that matches the constraint you are trying to resolve Example: constraint (Foo [Int]) instance Foo [Int] instance {--} Foo [a] Since the second instance has the Overlappable flag, the first instance will be chosen (otherwise its ambiguous which to choose) |
| Overlapping SourceText | Silently ignore any more general instances that may be used to solve the constraint. Example: constraint (Foo [Int]) instance {--} Foo [Int] instance Foo [a] Since the first instance has the Overlapping flag, the second---more general---instance will be ignored (otherwise it is ambiguous which to choose) |
| Overlaps SourceText | Equivalent to having both |
| Incoherent SourceText | Behave like Overlappable and Overlapping, and in addition pick an an arbitrary one if there are multiple matching candidates, and don't worry about later instantiation Example: constraint (Foo [b])
instance {-# INCOHERENT -} Foo [Int]
instance Foo [a]
Without the Incoherent flag, we'd complain that
instantiating |
Instances
| Eq OverlapMode Source # | |
| Data OverlapMode Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> OverlapMode -> c OverlapMode Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c OverlapMode Source # toConstr :: OverlapMode -> Constr Source # dataTypeOf :: OverlapMode -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c OverlapMode) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c OverlapMode) Source # gmapT :: (forall b. Data b => b -> b) -> OverlapMode -> OverlapMode Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> OverlapMode -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> OverlapMode -> r Source # gmapQ :: (forall d. Data d => d -> u) -> OverlapMode -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> OverlapMode -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> OverlapMode -> m OverlapMode Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> OverlapMode -> m OverlapMode Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> OverlapMode -> m OverlapMode Source # | |
| Outputable OverlapMode Source # | |
| Binary OverlapMode Source # | |
Methods put_ :: BinHandle -> OverlapMode -> IO () Source # put :: BinHandle -> OverlapMode -> IO (Bin OverlapMode) Source # | |
data OverlapFlag Source #
The semantics allowed for overlapping instances for a particular
instance. See Note [Safe Haskell isSafeOverlap] (in hs) for a
explanation of the isSafeOverlap field.
AnnKeywordId:AnnOpen'{-# OVERLAPPABLE'or'{-# OVERLAPPING'or'{-# OVERLAPS'or'{-# INCOHERENT',AnnClose`#-}`,
Constructors
| OverlapFlag | |
Fields | |
Instances
| Eq OverlapFlag Source # | |
| Data OverlapFlag Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> OverlapFlag -> c OverlapFlag Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c OverlapFlag Source # toConstr :: OverlapFlag -> Constr Source # dataTypeOf :: OverlapFlag -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c OverlapFlag) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c OverlapFlag) Source # gmapT :: (forall b. Data b => b -> b) -> OverlapFlag -> OverlapFlag Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> OverlapFlag -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> OverlapFlag -> r Source # gmapQ :: (forall d. Data d => d -> u) -> OverlapFlag -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> OverlapFlag -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> OverlapFlag -> m OverlapFlag Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> OverlapFlag -> m OverlapFlag Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> OverlapFlag -> m OverlapFlag Source # | |
| Outputable OverlapFlag Source # | |
| Binary OverlapFlag Source # | |
Methods put_ :: BinHandle -> OverlapFlag -> IO () Source # put :: BinHandle -> OverlapFlag -> IO (Bin OverlapFlag) Source # | |
data DerivStrategy Source #
Which technique the user explicitly requested when deriving an instance.
Constructors
| StockStrategy | GHC's "standard" strategy, which is to implement a
custom instance for the data type. This only works
for certain types that GHC knows about (e.g., |
| AnyclassStrategy | -XDeriveAnyClass |
| NewtypeStrategy | -XGeneralizedNewtypeDeriving |
Instances
| Eq DerivStrategy Source # | |
Methods (==) :: DerivStrategy -> DerivStrategy -> Bool # (/=) :: DerivStrategy -> DerivStrategy -> Bool # | |
| Data DerivStrategy Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> DerivStrategy -> c DerivStrategy Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c DerivStrategy Source # toConstr :: DerivStrategy -> Constr Source # dataTypeOf :: DerivStrategy -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c DerivStrategy) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c DerivStrategy) Source # gmapT :: (forall b. Data b => b -> b) -> DerivStrategy -> DerivStrategy Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> DerivStrategy -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> DerivStrategy -> r Source # gmapQ :: (forall d. Data d => d -> u) -> DerivStrategy -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> DerivStrategy -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> DerivStrategy -> m DerivStrategy Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> DerivStrategy -> m DerivStrategy Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> DerivStrategy -> m DerivStrategy Source # | |
| Outputable DerivStrategy Source # | |
Constructors
| FromSource | |
| Generated |
Instances
| Eq Origin Source # | |
| Data Origin Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Origin -> c Origin Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Origin Source # toConstr :: Origin -> Constr Source # dataTypeOf :: Origin -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Origin) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Origin) Source # gmapT :: (forall b. Data b => b -> b) -> Origin -> Origin Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Origin -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Origin -> r Source # gmapQ :: (forall d. Data d => d -> u) -> Origin -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> Origin -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Origin -> m Origin Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Origin -> m Origin Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Origin -> m Origin Source # | |
| Outputable Origin Source # | |
Recursivity Flag
Constructors
| Recursive | |
| NonRecursive |
Instances
| Eq RecFlag Source # | |
| Data RecFlag Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> RecFlag -> c RecFlag Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c RecFlag Source # toConstr :: RecFlag -> Constr Source # dataTypeOf :: RecFlag -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c RecFlag) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c RecFlag) Source # gmapT :: (forall b. Data b => b -> b) -> RecFlag -> RecFlag Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> RecFlag -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> RecFlag -> r Source # gmapQ :: (forall d. Data d => d -> u) -> RecFlag -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> RecFlag -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> RecFlag -> m RecFlag Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> RecFlag -> m RecFlag Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> RecFlag -> m RecFlag Source # | |
| Outputable RecFlag Source # | |
| Binary RecFlag Source # | |
Instances
| Eq Boxity Source # | |
| Data Boxity Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Boxity -> c Boxity Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Boxity Source # toConstr :: Boxity -> Constr Source # dataTypeOf :: Boxity -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Boxity) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Boxity) Source # gmapT :: (forall b. Data b => b -> b) -> Boxity -> Boxity Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Boxity -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Boxity -> r Source # gmapQ :: (forall d. Data d => d -> u) -> Boxity -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> Boxity -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Boxity -> m Boxity Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Boxity -> m Boxity Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Boxity -> m Boxity Source # | |
| Outputable Boxity Source # | |
data TopLevelFlag Source #
Constructors
| TopLevel | |
| NotTopLevel |
Instances
| Outputable TopLevelFlag Source # | |
data LexicalFixity Source #
Captures the fixity of declarations as they are parsed. This is not necessarily the same as the fixity declaration, as the normal fixity may be overridden using parens or backticks.
Instances
| Eq LexicalFixity Source # | |
Methods (==) :: LexicalFixity -> LexicalFixity -> Bool # (/=) :: LexicalFixity -> LexicalFixity -> Bool # | |
| Data LexicalFixity Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> LexicalFixity -> c LexicalFixity Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c LexicalFixity Source # toConstr :: LexicalFixity -> Constr Source # dataTypeOf :: LexicalFixity -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c LexicalFixity) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c LexicalFixity) Source # gmapT :: (forall b. Data b => b -> b) -> LexicalFixity -> LexicalFixity Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> LexicalFixity -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> LexicalFixity -> r Source # gmapQ :: (forall d. Data d => d -> u) -> LexicalFixity -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> LexicalFixity -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> LexicalFixity -> m LexicalFixity Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> LexicalFixity -> m LexicalFixity Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> LexicalFixity -> m LexicalFixity Source # | |
| Outputable LexicalFixity Source # | |
data FixityDirection Source #
Instances
Constructors
| Fixity SourceText Int FixityDirection |
Instances
| Eq Fixity Source # | |
| Data Fixity Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Fixity -> c Fixity Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Fixity Source # toConstr :: Fixity -> Constr Source # dataTypeOf :: Fixity -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Fixity) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Fixity) Source # gmapT :: (forall b. Data b => b -> b) -> Fixity -> Fixity Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Fixity -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Fixity -> r Source # gmapQ :: (forall d. Data d => d -> u) -> Fixity -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> Fixity -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Fixity -> m Fixity Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Fixity -> m Fixity Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Fixity -> m Fixity Source # | |
| Outputable Fixity Source # | |
| Binary Fixity Source # | |
type RuleName = FastString Source #
data WarningTxt Source #
Warning Text
reason/explanation from a WARNING or DEPRECATED pragma
Constructors
| WarningTxt (Located SourceText) [Located StringLiteral] | |
| DeprecatedTxt (Located SourceText) [Located StringLiteral] |
Instances
| Eq WarningTxt Source # | |
| Data WarningTxt Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> WarningTxt -> c WarningTxt Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c WarningTxt Source # toConstr :: WarningTxt -> Constr Source # dataTypeOf :: WarningTxt -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c WarningTxt) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c WarningTxt) Source # gmapT :: (forall b. Data b => b -> b) -> WarningTxt -> WarningTxt Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> WarningTxt -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> WarningTxt -> r Source # gmapQ :: (forall d. Data d => d -> u) -> WarningTxt -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> WarningTxt -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> WarningTxt -> m WarningTxt Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> WarningTxt -> m WarningTxt Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> WarningTxt -> m WarningTxt Source # | |
| Outputable WarningTxt Source # | |
| Binary WarningTxt Source # | |
Methods put_ :: BinHandle -> WarningTxt -> IO () Source # put :: BinHandle -> WarningTxt -> IO (Bin WarningTxt) Source # | |
data StringLiteral Source #
A String Literal in the source, including its original raw format for use by source to source manipulation tools.
Constructors
| StringLiteral | |
Fields
| |
Instances
data FunctionOrData Source #
Constructors
| IsFunction | |
| IsData |
Instances
Constructors
| NotSwapped | |
| IsSwapped |
data OneShotInfo Source #
If the Id is a lambda-bound variable then it may have lambda-bound
variable info. Sometimes we know whether the lambda binding this variable
is a "one-shot" lambda; that is, whether it is applied at most once.
This information may be useful in optimisation, as computations may safely be floated inside such a lambda without risk of duplicating work.
Constructors
| NoOneShotInfo | No information |
| OneShotLam | The lambda is applied at most once. |
Instances
| Eq OneShotInfo Source # | |
| Outputable OneShotInfo Source # | |
Constructor Tag
Type of the tags associated with each constructor possibility or superclass selector
The number of arguments that a join point takes. Unlike the arity of a function, this is a purely syntactic property and is fixed when the join point is created (or converted from a value). Both type and value arguments are counted.
The number of value arguments that can be applied to a value before it does "real work". So: fib 100 has arity 0 x -> fib x has arity 1 See also Note [Definition of arity] in CoreArity
data LeftOrRight Source #
Instances
| Eq LeftOrRight Source # | |
| Data LeftOrRight Source # | |
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> LeftOrRight -> c LeftOrRight Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c LeftOrRight Source # toConstr :: LeftOrRight -> Constr Source # dataTypeOf :: LeftOrRight -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c LeftOrRight) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c LeftOrRight) Source # gmapT :: (forall b. Data b => b -> b) -> LeftOrRight -> LeftOrRight Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> LeftOrRight -> r Source # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> LeftOrRight -> r Source # gmapQ :: (forall d. Data d => d -> u) -> LeftOrRight -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> LeftOrRight -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> LeftOrRight -> m LeftOrRight Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> LeftOrRight -> m LeftOrRight Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> LeftOrRight -> m LeftOrRight Source # | |
| Outputable LeftOrRight Source # | |
| Binary LeftOrRight Source # | |
Methods put_ :: BinHandle -> LeftOrRight -> IO () Source # put :: BinHandle -> LeftOrRight -> IO (Bin LeftOrRight) Source # | |
pickLR :: LeftOrRight -> (a, a) -> a Source #
Tags are allocated from here for real constructors or for superclass selectors
noOneShotInfo :: OneShotInfo Source #
It is always safe to assume that an Id has no lambda-bound variable information
isOneShotInfo :: OneShotInfo -> Bool Source #
hasNoOneShotInfo :: OneShotInfo -> Bool Source #
worstOneShot :: OneShotInfo -> OneShotInfo -> OneShotInfo Source #
bestOneShot :: OneShotInfo -> OneShotInfo -> OneShotInfo Source #
bumpVersion :: Version -> Version Source #
pprWarningTxtForMsg :: WarningTxt -> SDoc Source #
pprRuleName :: RuleName -> SDoc Source #
maxPrecedence :: Int Source #
minPrecedence :: Int Source #
funTyFixity :: Fixity Source #
isNotTopLevel :: TopLevelFlag -> Bool Source #
isTopLevel :: TopLevelFlag -> Bool Source #
boolToRecFlag :: Bool -> RecFlag Source #
isGenerated :: Origin -> Bool Source #
hasIncoherentFlag :: OverlapMode -> Bool Source #
hasOverlappingFlag :: OverlapMode -> Bool Source #
tupleSortBoxity :: TupleSort -> Boxity Source #
boxityTupleSort :: Boxity -> TupleSort Source #
Arguments
| :: (a -> SDoc) | The pretty printing function to use |
| -> a | The things to be pretty printed |
| -> ConTag | Alternative (one-based) |
| -> Arity | Arity |
| -> SDoc |
|
Pretty print an alternative in an unboxed sum e.g. "| a | |".
isManyOccs :: OccInfo -> Bool Source #
seqOccInfo :: OccInfo -> () Source #
tailCallInfo :: OccInfo -> TailCallInfo Source #
zapOccTailCallInfo :: OccInfo -> OccInfo Source #
isAlwaysTailCalled :: OccInfo -> Bool Source #
isWeakLoopBreaker :: OccInfo -> Bool Source #
isStrongLoopBreaker :: OccInfo -> Bool Source #
zapFragileOcc :: OccInfo -> OccInfo Source #
successIf :: Bool -> SuccessFlag Source #
succeeded :: SuccessFlag -> Bool Source #
failed :: SuccessFlag -> Bool Source #
pprWithSourceText :: SourceText -> SDoc -> SDoc Source #
Special combinator for showing string literals.
isConLike :: RuleMatchInfo -> Bool Source #
isFunLike :: RuleMatchInfo -> Bool Source #
noUserInlineSpec :: InlineSpec -> Bool Source #
isInlinePragma :: InlinePragma -> Bool Source #
isInlinablePragma :: InlinePragma -> Bool Source #
isAnyInlinePragma :: InlinePragma -> Bool Source #
inlinePragmaSat :: InlinePragma -> Maybe Arity Source #
pprInline :: InlinePragma -> SDoc Source #
pprInlineDebug :: InlinePragma -> SDoc Source #
isActive :: CompilerPhase -> Activation -> Bool Source #
isActiveIn :: PhaseNum -> Activation -> Bool Source #
competesWith :: Activation -> Activation -> Bool Source #
isNeverActive :: Activation -> Bool Source #
isAlwaysActive :: Activation -> Bool Source #
isEarlyActive :: Activation -> Bool Source #
mkIntegralLit :: Integral a => a -> IntegralLit Source #
mkFractionalLit :: Real a => a -> FractionalLit Source #
integralFractionalLit :: Bool -> Integer -> FractionalLit Source #
infinity :: IntWithInf Source #
A representation of infinity
intGtLimit :: Int -> IntWithInf -> Bool Source #
treatZeroAsInf :: Int -> IntWithInf Source #
Turn a positive number into an IntWithInf, where 0 represents infinity
mkIntWithInf :: Int -> IntWithInf Source #
Inject any integer into an IntWithInf
module VarSet
module VarEnv
module NameSet
module NameEnv
module UniqSet
module UniqFM
module FiniteMap
module Util
module GHC.Serialized
module SrcLoc
module Outputable
module UniqSupply
class Uniquable a where Source #
Class of things that we can obtain a Unique from
Minimal complete definition
Instances
Unique identifier.
The type of unique identifiers that are used in many places in GHC
for fast ordering and equality tests. You should generate these with
the functions from the UniqSupply module
These are sometimes also referred to as "keys" in comments in GHC.
module FastString