| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
TcSMonad
- data WorkList = WL {
- wl_eqs :: [Ct]
- wl_funeqs :: [Ct]
- wl_rest :: [Ct]
- wl_deriv :: [CtEvidence]
- wl_implics :: Bag Implication
- isEmptyWorkList :: WorkList -> Bool
- emptyWorkList :: WorkList
- extendWorkListNonEq :: Ct -> WorkList -> WorkList
- extendWorkListCt :: Ct -> WorkList -> WorkList
- extendWorkListDerived :: CtLoc -> CtEvidence -> WorkList -> WorkList
- extendWorkListCts :: [Ct] -> WorkList -> WorkList
- extendWorkListEq :: Ct -> WorkList -> WorkList
- extendWorkListFunEq :: Ct -> WorkList -> WorkList
- appendWorkList :: WorkList -> WorkList -> WorkList
- selectNextWorkItem :: TcS (Maybe Ct)
- workListSize :: WorkList -> Int
- workListWantedCount :: WorkList -> Int
- updWorkListTcS :: (WorkList -> WorkList) -> TcS ()
- data TcS a
- runTcS :: TcS a -> TcM (a, EvBindMap)
- runTcSDeriveds :: TcS a -> TcM a
- runTcSWithEvBinds :: Bool -> Maybe EvBindsVar -> TcS a -> TcM a
- failTcS :: SDoc -> TcS a
- warnTcS :: SDoc -> TcS ()
- runTcSEqualities :: TcS a -> TcM a
- nestTcS :: TcS a -> TcS a
- nestImplicTcS :: Maybe EvBindsVar -> TyCoVarSet -> TcLevel -> TcS a -> TcS (a, TyCoVarSet)
- runTcPluginTcS :: TcPluginM a -> TcS a
- addUsedDataCons :: GlobalRdrEnv -> TyCon -> TcS ()
- deferTcSForAllEq :: Role -> CtLoc -> [Coercion] -> ([TyBinder], TcType) -> ([TyBinder], TcType) -> TcS Coercion
- panicTcS :: SDoc -> TcS a
- traceTcS :: String -> SDoc -> TcS ()
- traceFireTcS :: CtEvidence -> SDoc -> TcS ()
- bumpStepCountTcS :: TcS ()
- csTraceTcS :: SDoc -> TcS ()
- wrapErrTcS :: TcM a -> TcS a
- wrapWarnTcS :: TcM a -> TcS a
- data MaybeNew
- freshGoals :: [MaybeNew] -> [CtEvidence]
- isFresh :: MaybeNew -> Bool
- getEvTerm :: MaybeNew -> EvTerm
- newTcEvBinds :: TcS EvBindsVar
- newWantedEq :: CtLoc -> Role -> TcType -> TcType -> TcS (CtEvidence, Coercion)
- newWanted :: CtLoc -> PredType -> TcS MaybeNew
- newWantedEvVar :: CtLoc -> TcPredType -> TcS MaybeNew
- newWantedEvVarNC :: CtLoc -> TcPredType -> TcS CtEvidence
- newDerivedNC :: CtLoc -> TcPredType -> TcS CtEvidence
- newBoundEvVarId :: TcPredType -> EvTerm -> TcS EvVar
- unifyTyVar :: TcTyVar -> TcType -> TcS ()
- unflattenFmv :: TcTyVar -> TcType -> TcS ()
- reportUnifications :: TcS a -> TcS (Int, a)
- setEvBind :: EvBind -> TcS ()
- setWantedEq :: TcEvDest -> Coercion -> TcS ()
- setEqIfWanted :: CtEvidence -> Coercion -> TcS ()
- setWantedEvTerm :: TcEvDest -> EvTerm -> TcS ()
- setWantedEvBind :: EvVar -> EvTerm -> TcS ()
- setEvBindIfWanted :: CtEvidence -> EvTerm -> TcS ()
- newEvVar :: TcPredType -> TcS EvVar
- newGivenEvVar :: CtLoc -> (TcPredType, EvTerm) -> TcS CtEvidence
- newGivenEvVars :: CtLoc -> [(TcPredType, EvTerm)] -> TcS [CtEvidence]
- emitNewDerived :: CtLoc -> TcPredType -> TcS ()
- emitNewDeriveds :: CtLoc -> [TcPredType] -> TcS ()
- emitNewDerivedEq :: CtLoc -> Role -> TcType -> TcType -> TcS ()
- checkReductionDepth :: CtLoc -> TcType -> TcS ()
- getInstEnvs :: TcS InstEnvs
- getFamInstEnvs :: TcS (FamInstEnv, FamInstEnv)
- getTopEnv :: TcS HscEnv
- getGblEnv :: TcS TcGblEnv
- getLclEnv :: TcS TcLclEnv
- getTcEvBinds :: TcS (Maybe EvBindsVar)
- getTcEvBindsFromVar :: EvBindsVar -> TcS (Bag EvBind)
- getTcLevel :: TcS TcLevel
- getTcEvBindsMap :: TcS EvBindMap
- tcLookupClass :: Name -> TcS Class
- data InertSet = IS {
- inert_cans :: InertCans
- inert_flat_cache :: ExactFunEqMap (TcCoercion, TcType, CtFlavour)
- inert_solved_dicts :: DictMap CtEvidence
- data InertCans = IC {
- inert_model :: InertModel
- inert_eqs :: TyVarEnv EqualCtList
- inert_funeqs :: FunEqMap Ct
- inert_dicts :: DictMap Ct
- inert_safehask :: DictMap Ct
- inert_irreds :: Cts
- inert_insols :: Cts
- inert_count :: Int
- updInertTcS :: (InertSet -> InertSet) -> TcS ()
- updInertCans :: (InertCans -> InertCans) -> TcS ()
- updInertDicts :: (DictMap Ct -> DictMap Ct) -> TcS ()
- updInertIrreds :: (Cts -> Cts) -> TcS ()
- getNoGivenEqs :: TcLevel -> [TcTyVar] -> TcS Bool
- setInertCans :: InertCans -> TcS ()
- getInertEqs :: TcS (TyVarEnv EqualCtList)
- getInertCans :: TcS InertCans
- getInertModel :: TcS InertModel
- getInertGivens :: TcS [Ct]
- emptyInert :: InertSet
- getTcSInerts :: TcS InertSet
- setTcSInerts :: InertSet -> TcS ()
- takeGivenInsolubles :: TcS Cts
- matchableGivens :: CtLoc -> PredType -> InertSet -> Cts
- prohibitedSuperClassSolve :: CtLoc -> CtLoc -> Bool
- getUnsolvedInerts :: TcS (Bag Implication, Cts, Cts, Cts, Cts)
- removeInertCts :: [Ct] -> InertCans -> InertCans
- getPendingScDicts :: TcS [Ct]
- addInertCan :: Ct -> TcS ()
- addInertEq :: Ct -> TcS ()
- insertFunEq :: FunEqMap a -> TyCon -> [Type] -> a -> FunEqMap a
- emitInsoluble :: Ct -> TcS ()
- emitWorkNC :: [CtEvidence] -> TcS ()
- type InertModel = TyVarEnv Ct
- kickOutAfterUnification :: TcTyVar -> TcS Int
- addInertSafehask :: InertCans -> Ct -> InertCans
- insertSafeOverlapFailureTcS :: Ct -> TcS ()
- updInertSafehask :: (DictMap Ct -> DictMap Ct) -> TcS ()
- getSafeOverlapFailures :: TcS Cts
- lookupInertDict :: InertCans -> Class -> [Type] -> Maybe CtEvidence
- findDictsByClass :: DictMap a -> Class -> Bag a
- addDict :: DictMap a -> Class -> [Type] -> a -> DictMap a
- addDictsByClass :: DictMap Ct -> Class -> Bag Ct -> DictMap Ct
- delDict :: DictMap a -> Class -> [Type] -> DictMap a
- partitionDicts :: (Ct -> Bool) -> DictMap Ct -> (Bag Ct, DictMap Ct)
- foldDicts :: (a -> b -> b) -> DictMap a -> b -> b
- filterDicts :: (Ct -> Bool) -> DictMap Ct -> DictMap Ct
- type EqualCtList = [Ct]
- findTyEqs :: InertCans -> TyVar -> EqualCtList
- foldTyEqs :: (Ct -> b -> b) -> TyVarEnv EqualCtList -> b -> b
- isInInertEqs :: TyVarEnv EqualCtList -> TcTyVar -> TcType -> Bool
- addSolvedDict :: CtEvidence -> Class -> [Type] -> TcS ()
- lookupSolvedDict :: InertSet -> Class -> [Type] -> Maybe CtEvidence
- foldIrreds :: (Ct -> b -> b) -> Cts -> b -> b
- lookupFlatCache :: TyCon -> [Type] -> TcS (Maybe (TcCoercion, TcType, CtFlavour))
- extendFlatCache :: TyCon -> [Type] -> (TcCoercion, TcType, CtFlavour) -> TcS ()
- newFlattenSkolem :: CtFlavour -> CtLoc -> TcType -> TcS (CtEvidence, Coercion, TcTyVar)
- updInertFunEqs :: (FunEqMap Ct -> FunEqMap Ct) -> TcS ()
- findFunEq :: FunEqMap a -> TyCon -> [Type] -> Maybe a
- sizeFunEqMap :: FunEqMap a -> Int
- filterFunEqs :: (Ct -> Bool) -> FunEqMap Ct -> FunEqMap Ct
- findFunEqsByTyCon :: FunEqMap a -> TyCon -> [a]
- partitionFunEqs :: (Ct -> Bool) -> FunEqMap Ct -> ([Ct], FunEqMap Ct)
- foldFunEqs :: (a -> b -> b) -> FunEqMap a -> b -> b
- instDFunType :: DFunId -> [DFunInstType] -> TcS ([TcType], TcThetaType)
- newFlexiTcSTy :: Kind -> TcS TcType
- instFlexiTcS :: [TKVar] -> TcS (TCvSubst, [TcType])
- cloneMetaTyVar :: TcTyVar -> TcS TcTyVar
- demoteUnfilledFmv :: TcTyVar -> TcS ()
- data TcLevel
- isTouchableMetaTyVarTcS :: TcTyVar -> TcS Bool
- isFilledMetaTyVar_maybe :: TcTyVar -> TcS (Maybe Type)
- isFilledMetaTyVar :: TcTyVar -> TcS Bool
- zonkTyCoVarsAndFV :: TcTyCoVarSet -> TcS TcTyCoVarSet
- zonkTcType :: TcType -> TcS TcType
- zonkTcTypes :: [TcType] -> TcS [TcType]
- zonkTcTyVar :: TcTyVar -> TcS TcType
- zonkCo :: Coercion -> TcS Coercion
- zonkSimples :: Cts -> TcS Cts
- zonkWC :: WantedConstraints -> TcS WantedConstraints
- newTcRef :: a -> TcS (TcRef a)
- readTcRef :: TcRef a -> TcS a
- updTcRef :: TcRef a -> (a -> a) -> TcS ()
- getDefaultInfo :: TcS ([Type], (Bool, Bool))
- getDynFlags :: HasDynFlags m => m DynFlags
- getGlobalRdrEnvTcS :: TcS GlobalRdrEnv
- matchFam :: TyCon -> [Type] -> TcS (Maybe (Coercion, TcType))
- matchFamTcM :: TyCon -> [Type] -> TcM (Maybe (Coercion, TcType))
- checkWellStagedDFun :: PredType -> DFunId -> CtLoc -> TcS ()
- pprEq :: TcType -> TcType -> SDoc
Documentation
Constructors
| WL | |
Fields
| |
Instances
isEmptyWorkList :: WorkList -> Bool Source
extendWorkListNonEq :: Ct -> WorkList -> WorkList Source
extendWorkListCt :: Ct -> WorkList -> WorkList Source
extendWorkListDerived :: CtLoc -> CtEvidence -> WorkList -> WorkList Source
extendWorkListCts :: [Ct] -> WorkList -> WorkList Source
extendWorkListEq :: Ct -> WorkList -> WorkList Source
extendWorkListFunEq :: Ct -> WorkList -> WorkList Source
appendWorkList :: WorkList -> WorkList -> WorkList Source
selectNextWorkItem :: TcS (Maybe Ct) Source
workListSize :: WorkList -> Int Source
workListWantedCount :: WorkList -> Int Source
updWorkListTcS :: (WorkList -> WorkList) -> TcS () Source
Instances
runTcSDeriveds :: TcS a -> TcM a Source
This variant of runTcS will keep solving, even when only Deriveds
are left around. It also doesn't return any evidence, as callers won't
need it.
Arguments
| :: Bool | keep running even if only Deriveds are left? |
| -> Maybe EvBindsVar | |
| -> TcS a | |
| -> TcM a |
runTcSEqualities :: TcS a -> TcM a Source
This can deal only with equality constraints.
nestImplicTcS :: Maybe EvBindsVar -> TyCoVarSet -> TcLevel -> TcS a -> TcS (a, TyCoVarSet) Source
runTcPluginTcS :: TcPluginM a -> TcS a Source
addUsedDataCons :: GlobalRdrEnv -> TyCon -> TcS () Source
deferTcSForAllEq :: Role -> CtLoc -> [Coercion] -> ([TyBinder], TcType) -> ([TyBinder], TcType) -> TcS Coercion Source
traceFireTcS :: CtEvidence -> SDoc -> TcS () Source
bumpStepCountTcS :: TcS () Source
csTraceTcS :: SDoc -> TcS () Source
wrapErrTcS :: TcM a -> TcS a Source
wrapWarnTcS :: TcM a -> TcS a Source
freshGoals :: [MaybeNew] -> [CtEvidence] Source
newWantedEq :: CtLoc -> Role -> TcType -> TcType -> TcS (CtEvidence, Coercion) Source
Make a new equality CtEvidence
newWantedEvVar :: CtLoc -> TcPredType -> TcS MaybeNew Source
newWantedEvVarNC :: CtLoc -> TcPredType -> TcS CtEvidence Source
newDerivedNC :: CtLoc -> TcPredType -> TcS CtEvidence Source
newBoundEvVarId :: TcPredType -> EvTerm -> TcS EvVar Source
Make a new Id of the given type, bound (in the monad's EvBinds) to the
given term
unifyTyVar :: TcTyVar -> TcType -> TcS () Source
unflattenFmv :: TcTyVar -> TcType -> TcS () Source
reportUnifications :: TcS a -> TcS (Int, a) Source
setWantedEq :: TcEvDest -> Coercion -> TcS () Source
Equalities only
setEqIfWanted :: CtEvidence -> Coercion -> TcS () Source
Equalities only
setWantedEvTerm :: TcEvDest -> EvTerm -> TcS () Source
Good for equalities and non-equalities
setWantedEvBind :: EvVar -> EvTerm -> TcS () Source
setEvBindIfWanted :: CtEvidence -> EvTerm -> TcS () Source
newEvVar :: TcPredType -> TcS EvVar Source
newGivenEvVar :: CtLoc -> (TcPredType, EvTerm) -> TcS CtEvidence Source
newGivenEvVars :: CtLoc -> [(TcPredType, EvTerm)] -> TcS [CtEvidence] Source
emitNewDerived :: CtLoc -> TcPredType -> TcS () Source
emitNewDeriveds :: CtLoc -> [TcPredType] -> TcS () Source
Checks if the depth of the given location is too much. Fails if it's too big, with an appropriate error message.
getTcEvBinds :: TcS (Maybe EvBindsVar) Source
getTcEvBindsFromVar :: EvBindsVar -> TcS (Bag EvBind) Source
tcLookupClass :: Name -> TcS Class Source
Constructors
| IS | |
Fields
| |
Instances
Constructors
| IC | |
Fields
| |
Instances
updInertTcS :: (InertSet -> InertSet) -> TcS () Source
updInertCans :: (InertCans -> InertCans) -> TcS () Source
updInertDicts :: (DictMap Ct -> DictMap Ct) -> TcS () Source
updInertIrreds :: (Cts -> Cts) -> TcS () Source
setInertCans :: InertCans -> TcS () Source
getInertGivens :: TcS [Ct] Source
setTcSInerts :: InertSet -> TcS () Source
matchableGivens :: CtLoc -> PredType -> InertSet -> Cts Source
Returns Given constraints that might, potentially, match the given pred. This is used when checking to see if a Given might overlap with an instance. See Note [Instance and Given overlap] in TcInteract.
prohibitedSuperClassSolve :: CtLoc -> CtLoc -> Bool Source
getUnsolvedInerts :: TcS (Bag Implication, Cts, Cts, Cts, Cts) Source
removeInertCts :: [Ct] -> InertCans -> InertCans Source
Remove inert constraints from the InertCans, for use when a
typechecker plugin wishes to discard a given.
getPendingScDicts :: TcS [Ct] Source
addInertCan :: Ct -> TcS () Source
addInertEq :: Ct -> TcS () Source
insertFunEq :: FunEqMap a -> TyCon -> [Type] -> a -> FunEqMap a Source
emitInsoluble :: Ct -> TcS () Source
emitWorkNC :: [CtEvidence] -> TcS () Source
type InertModel = TyVarEnv Ct Source
addInertSafehask :: InertCans -> Ct -> InertCans Source
insertSafeOverlapFailureTcS :: Ct -> TcS () Source
updInertSafehask :: (DictMap Ct -> DictMap Ct) -> TcS () Source
lookupInertDict :: InertCans -> Class -> [Type] -> Maybe CtEvidence Source
Look up a dictionary inert. NB: the returned CtEvidence might not
match the input exactly. Note [Use loose types in inert set].
findDictsByClass :: DictMap a -> Class -> Bag a Source
type EqualCtList = [Ct] Source
findTyEqs :: InertCans -> TyVar -> EqualCtList Source
foldTyEqs :: (Ct -> b -> b) -> TyVarEnv EqualCtList -> b -> b Source
isInInertEqs :: TyVarEnv EqualCtList -> TcTyVar -> TcType -> Bool Source
addSolvedDict :: CtEvidence -> Class -> [Type] -> TcS () Source
lookupSolvedDict :: InertSet -> Class -> [Type] -> Maybe CtEvidence Source
Look up a solved inert. NB: the returned CtEvidence might not
match the input exactly. See Note [Use loose types in inert set].
foldIrreds :: (Ct -> b -> b) -> Cts -> b -> b Source
lookupFlatCache :: TyCon -> [Type] -> TcS (Maybe (TcCoercion, TcType, CtFlavour)) Source
extendFlatCache :: TyCon -> [Type] -> (TcCoercion, TcType, CtFlavour) -> TcS () Source
newFlattenSkolem :: CtFlavour -> CtLoc -> TcType -> TcS (CtEvidence, Coercion, TcTyVar) Source
updInertFunEqs :: (FunEqMap Ct -> FunEqMap Ct) -> TcS () Source
sizeFunEqMap :: FunEqMap a -> Int Source
findFunEqsByTyCon :: FunEqMap a -> TyCon -> [a] Source
foldFunEqs :: (a -> b -> b) -> FunEqMap a -> b -> b Source
instDFunType :: DFunId -> [DFunInstType] -> TcS ([TcType], TcThetaType) Source
newFlexiTcSTy :: Kind -> TcS TcType Source
cloneMetaTyVar :: TcTyVar -> TcS TcTyVar Source
demoteUnfilledFmv :: TcTyVar -> TcS () Source
isFilledMetaTyVar :: TcTyVar -> TcS Bool Source
zonkTcType :: TcType -> TcS TcType Source
zonkTcTypes :: [TcType] -> TcS [TcType] Source
zonkTcTyVar :: TcTyVar -> TcS TcType Source
zonkSimples :: Cts -> TcS Cts Source
getDynFlags :: HasDynFlags m => m DynFlags Source