Safe Haskell	None
Language	Haskell2010

Inst

Synopsis

deeplySkolemise :: TcSigmaType -> TcM (HsWrapper, [(Name, TyVar)], [EvVar], TcRhoType)
topInstantiate :: CtOrigin -> TcSigmaType -> TcM (HsWrapper, TcRhoType)
topInstantiateInferred :: CtOrigin -> TcSigmaType -> TcM (HsWrapper, TcSigmaType)
deeplyInstantiate :: CtOrigin -> TcSigmaType -> TcM (HsWrapper, TcRhoType)
instCall :: CtOrigin -> [TcType] -> TcThetaType -> TcM HsWrapper
instDFunType :: DFunId -> [DFunInstType] -> TcM ([TcType], TcThetaType)
instStupidTheta :: CtOrigin -> TcThetaType -> TcM ()
instTyVarsWith :: CtOrigin -> [TyVar] -> [TcType] -> TcM TCvSubst
newWanted :: CtOrigin -> Maybe TypeOrKind -> PredType -> TcM CtEvidence
newWanteds :: CtOrigin -> ThetaType -> TcM [CtEvidence]
tcInstInvisibleTyBinders :: Int -> TcKind -> TcM ([TcType], TcKind)
tcInstInvisibleTyBinder :: TCvSubst -> TyBinder -> TcM (TCvSubst, TcType)
newOverloadedLit :: HsOverLit GhcRn -> ExpRhoType -> TcM (HsOverLit GhcTcId)
mkOverLit :: OverLitVal -> TcM (HsLit GhcTc)
newClsInst :: Maybe OverlapMode -> Name -> [TyVar] -> ThetaType -> Class -> [Type] -> TcM ClsInst
tcGetInsts :: TcM [ClsInst]
tcGetInstEnvs :: TcM InstEnvs
getOverlapFlag :: Maybe OverlapMode -> TcM OverlapFlag
tcExtendLocalInstEnv :: [ClsInst] -> TcM a -> TcM a
instCallConstraints :: CtOrigin -> TcThetaType -> TcM HsWrapper
newMethodFromName :: CtOrigin -> Name -> [TcRhoType] -> TcM (HsExpr GhcTcId)
tcSyntaxName :: CtOrigin -> TcType -> (Name, HsExpr GhcRn) -> TcM (Name, HsExpr GhcTcId)
tyCoVarsOfWC :: WantedConstraints -> TyCoVarSet
tyCoVarsOfCt :: Ct -> TcTyCoVarSet
tyCoVarsOfCts :: Cts -> TcTyCoVarSet

Documentation

deeplySkolemise :: TcSigmaType -> TcM (HsWrapper, [(Name, TyVar)], [EvVar], TcRhoType) Source #

topInstantiate :: CtOrigin -> TcSigmaType -> TcM (HsWrapper, TcRhoType) Source #

Instantiate all outer type variables and any context. Never looks through arrows.

topInstantiateInferred :: CtOrigin -> TcSigmaType -> TcM (HsWrapper, TcSigmaType) Source #

Instantiate all outer Inferred binders and any context. Never looks through arrows or specified type variables. Used for visible type application.

deeplyInstantiate :: CtOrigin -> TcSigmaType -> TcM (HsWrapper, TcRhoType) Source #

instCall :: CtOrigin -> [TcType] -> TcThetaType -> TcM HsWrapper Source #

instDFunType :: DFunId -> [DFunInstType] -> TcM ([TcType], TcThetaType) Source #

instStupidTheta :: CtOrigin -> TcThetaType -> TcM () Source #

instTyVarsWith :: CtOrigin -> [TyVar] -> [TcType] -> TcM TCvSubst Source #

newWanted :: CtOrigin -> Maybe TypeOrKind -> PredType -> TcM CtEvidence Source #

newWanteds :: CtOrigin -> ThetaType -> TcM [CtEvidence] Source #

tcInstInvisibleTyBinders :: Int -> TcKind -> TcM ([TcType], TcKind) Source #

Instantiates up to n invisible binders Returns the instantiating types, and body kind

tcInstInvisibleTyBinder :: TCvSubst -> TyBinder -> TcM (TCvSubst, TcType) Source #

Used only in *types*

newOverloadedLit :: HsOverLit GhcRn -> ExpRhoType -> TcM (HsOverLit GhcTcId) Source #

mkOverLit :: OverLitVal -> TcM (HsLit GhcTc) Source #

newClsInst :: Maybe OverlapMode -> Name -> [TyVar] -> ThetaType -> Class -> [Type] -> TcM ClsInst Source #

tcGetInsts :: TcM [ClsInst] Source #

tcGetInstEnvs :: TcM InstEnvs Source #

getOverlapFlag :: Maybe OverlapMode -> TcM OverlapFlag Source #

tcExtendLocalInstEnv :: [ClsInst] -> TcM a -> TcM a Source #

instCallConstraints :: CtOrigin -> TcThetaType -> TcM HsWrapper Source #

newMethodFromName Source #

Arguments

:: CtOrigin	why do we need this?
-> Name	name of the method
-> [TcRhoType]	types with which to instantiate the class
-> TcM (HsExpr GhcTcId)

Used when Name is the wired-in name for a wired-in class method, so the caller knows its type for sure, which should be of form

forall a. C a => <blah>

newMethodFromName is supposed to instantiate just the outer type variable and constraint

tcSyntaxName Source #

Arguments

:: CtOrigin
-> TcType	Type to instantiate it at
-> (Name, HsExpr GhcRn)	(Standard name, user name)
-> TcM (Name, HsExpr GhcTcId)	(Standard name, suitable expression) USED ONLY FOR CmdTop (sigh) *** See Note [CmdSyntaxTable] in GHC.Hs.Expr

tyCoVarsOfWC :: WantedConstraints -> TyCoVarSet Source #

Returns free variables of WantedConstraints as a non-deterministic set. See Note [Deterministic FV] in FV.

tyCoVarsOfCt :: Ct -> TcTyCoVarSet Source #

Returns free variables of constraints as a non-deterministic set

tyCoVarsOfCts :: Cts -> TcTyCoVarSet Source #

Returns free variables of a bag of constraints as a non-deterministic set. See Note [Deterministic FV] in FV.