ghc-8.6.1: The GHC API

Safe HaskellNone
LanguageHaskell2010

TcEvidence

Synopsis

Documentation

data HsWrapper Source #

Instances
Data HsWrapper Source # 
Instance details

Defined in TcEvidence

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> HsWrapper -> c HsWrapper #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c HsWrapper #

toConstr :: HsWrapper -> Constr #

dataTypeOf :: HsWrapper -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c HsWrapper) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c HsWrapper) #

gmapT :: (forall b. Data b => b -> b) -> HsWrapper -> HsWrapper #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> HsWrapper -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> HsWrapper -> r #

gmapQ :: (forall d. Data d => d -> u) -> HsWrapper -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> HsWrapper -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> HsWrapper -> m HsWrapper #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> HsWrapper -> m HsWrapper #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> HsWrapper -> m HsWrapper #

Outputable HsWrapper Source # 
Instance details

Defined in TcEvidence

mkWpFuns :: [(TcType, HsWrapper)] -> TcType -> HsWrapper -> SDoc -> HsWrapper Source #

mkWpFuns [(ty1, wrap1), (ty2, wrap2)] ty_res wrap_res, where wrap1 :: ty1 "->" ty1' and wrap2 :: ty2 "->" ty2', wrap3 :: ty3 "->" ty3' and ty_res is either ty3 or ty3', gives a wrapper (ty1' -> ty2' -> ty3) "->" (ty1 -> ty2 -> ty3'). Notice that the result wrapper goes the other way round to all the others. This is a result of sub-typing contravariance. The SDoc is a description of what you were doing when you called mkWpFuns.

data TcEvBinds Source #

Instances
Data TcEvBinds Source # 
Instance details

Defined in TcEvidence

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> TcEvBinds -> c TcEvBinds #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c TcEvBinds #

toConstr :: TcEvBinds -> Constr #

dataTypeOf :: TcEvBinds -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c TcEvBinds) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c TcEvBinds) #

gmapT :: (forall b. Data b => b -> b) -> TcEvBinds -> TcEvBinds #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> TcEvBinds -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> TcEvBinds -> r #

gmapQ :: (forall d. Data d => d -> u) -> TcEvBinds -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> TcEvBinds -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> TcEvBinds -> m TcEvBinds #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> TcEvBinds -> m TcEvBinds #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> TcEvBinds -> m TcEvBinds #

Outputable TcEvBinds Source # 
Instance details

Defined in TcEvidence

newtype EvBindMap Source #

Constructors

EvBindMap 
Instances
Outputable EvBindMap Source # 
Instance details

Defined in TcEvidence

foldEvBindMap :: (EvBind -> a -> a) -> a -> EvBindMap -> a Source #

data EvBind Source #

Constructors

EvBind 
Instances
Outputable EvBind Source # 
Instance details

Defined in TcEvidence

data EvTerm Source #

Instances
Data EvTerm Source # 
Instance details

Defined in TcEvidence

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> EvTerm -> c EvTerm #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c EvTerm #

toConstr :: EvTerm -> Constr #

dataTypeOf :: EvTerm -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c EvTerm) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c EvTerm) #

gmapT :: (forall b. Data b => b -> b) -> EvTerm -> EvTerm #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> EvTerm -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> EvTerm -> r #

gmapQ :: (forall d. Data d => d -> u) -> EvTerm -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> EvTerm -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> EvTerm -> m EvTerm #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> EvTerm -> m EvTerm #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> EvTerm -> m EvTerm #

Outputable EvTerm Source # 
Instance details

Defined in TcEvidence

evId :: EvId -> EvExpr Source #

Any sort of evidence Id, including coercions

data EvCallStack Source #

Evidence for CallStack implicit parameters.

Constructors

EvCsEmpty 
EvCsPushCall Name RealSrcSpan EvExpr

EvCsPushCall name loc stk represents a call to name, occurring at loc, in a calling context stk.

Instances
Data EvCallStack Source # 
Instance details

Defined in TcEvidence

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> EvCallStack -> c EvCallStack #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c EvCallStack #

toConstr :: EvCallStack -> Constr #

dataTypeOf :: EvCallStack -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c EvCallStack) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c EvCallStack) #

gmapT :: (forall b. Data b => b -> b) -> EvCallStack -> EvCallStack #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> EvCallStack -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> EvCallStack -> r #

gmapQ :: (forall d. Data d => d -> u) -> EvCallStack -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> EvCallStack -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> EvCallStack -> m EvCallStack #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> EvCallStack -> m EvCallStack #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> EvCallStack -> m EvCallStack #

Outputable EvCallStack Source # 
Instance details

Defined in TcEvidence

data EvTypeable Source #

Instructions on how to make a Typeable dictionary. See Note [Typeable evidence terms]

Constructors

EvTypeableTyCon TyCon [EvTerm]

Dictionary for Typeable T where T is a type constructor with all of its kind variables saturated. The [EvTerm] is Typeable evidence for the applied kinds..

EvTypeableTyApp EvTerm EvTerm

Dictionary for Typeable (s t), given a dictionaries for s and t.

EvTypeableTrFun EvTerm EvTerm

Dictionary for Typeable (s -> t), given a dictionaries for s and t.

EvTypeableTyLit EvTerm

Dictionary for a type literal, e.g. Typeable "foo" or Typeable 3 The EvTerm is evidence of, e.g., KnownNat 3 (see Trac #10348)

Instances
Data EvTypeable Source # 
Instance details

Defined in TcEvidence

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> EvTypeable -> c EvTypeable #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c EvTypeable #

toConstr :: EvTypeable -> Constr #

dataTypeOf :: EvTypeable -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c EvTypeable) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c EvTypeable) #

gmapT :: (forall b. Data b => b -> b) -> EvTypeable -> EvTypeable #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> EvTypeable -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> EvTypeable -> r #

gmapQ :: (forall d. Data d => d -> u) -> EvTypeable -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> EvTypeable -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> EvTypeable -> m EvTypeable #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> EvTypeable -> m EvTypeable #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> EvTypeable -> m EvTypeable #

Outputable EvTypeable Source # 
Instance details

Defined in TcEvidence

data CoercionHole Source #

A coercion to be filled in by the type-checker. See Note [Coercion holes]

Instances
Data CoercionHole Source # 
Instance details

Defined in TyCoRep

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> CoercionHole -> c CoercionHole #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c CoercionHole #

toConstr :: CoercionHole -> Constr #

dataTypeOf :: CoercionHole -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c CoercionHole) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c CoercionHole) #

gmapT :: (forall b. Data b => b -> b) -> CoercionHole -> CoercionHole #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> CoercionHole -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> CoercionHole -> r #

gmapQ :: (forall d. Data d => d -> u) -> CoercionHole -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> CoercionHole -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> CoercionHole -> m CoercionHole #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> CoercionHole -> m CoercionHole #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> CoercionHole -> m CoercionHole #

Outputable CoercionHole Source # 
Instance details

Defined in TyCoRep

data Role Source #

Instances
Eq Role Source # 
Instance details

Defined in CoAxiom

Methods

(==) :: Role -> Role -> Bool #

(/=) :: Role -> Role -> Bool #

Data Role Source # 
Instance details

Defined in CoAxiom

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Role -> c Role #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Role #

toConstr :: Role -> Constr #

dataTypeOf :: Role -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Role) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Role) #

gmapT :: (forall b. Data b => b -> b) -> Role -> Role #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Role -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Role -> r #

gmapQ :: (forall d. Data d => d -> u) -> Role -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Role -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Role -> m Role #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Role -> m Role #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Role -> m Role #

Ord Role Source # 
Instance details

Defined in CoAxiom

Methods

compare :: Role -> Role -> Ordering #

(<) :: Role -> Role -> Bool #

(<=) :: Role -> Role -> Bool #

(>) :: Role -> Role -> Bool #

(>=) :: Role -> Role -> Bool #

max :: Role -> Role -> Role #

min :: Role -> Role -> Role #

Outputable Role Source # 
Instance details

Defined in CoAxiom

Binary Role Source # 
Instance details

Defined in CoAxiom

data LeftOrRight Source #

Constructors

CLeft 
CRight 
Instances
Eq LeftOrRight Source # 
Instance details

Defined in BasicTypes

Data LeftOrRight Source # 
Instance details

Defined in BasicTypes

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> LeftOrRight -> c LeftOrRight #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c LeftOrRight #

toConstr :: LeftOrRight -> Constr #

dataTypeOf :: LeftOrRight -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c LeftOrRight) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c LeftOrRight) #

gmapT :: (forall b. Data b => b -> b) -> LeftOrRight -> LeftOrRight #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> LeftOrRight -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> LeftOrRight -> r #

gmapQ :: (forall d. Data d => d -> u) -> LeftOrRight -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> LeftOrRight -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> LeftOrRight -> m LeftOrRight #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> LeftOrRight -> m LeftOrRight #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> LeftOrRight -> m LeftOrRight #

Outputable LeftOrRight Source # 
Instance details

Defined in BasicTypes

Binary LeftOrRight Source # 
Instance details

Defined in Binary

pickLR :: LeftOrRight -> (a, a) -> a Source #

isTcReflexiveCo :: TcCoercion -> Bool Source #

This version does a slow check, calculating the related types and seeing if they are equal.

unwrapIP :: Type -> CoercionR Source #

Create a Expr that unwraps an implicit-parameter or overloaded-label dictionary to expose the underlying value. We expect the Expr to have the form `IP sym ty` or `IsLabel sym ty`, and return a Expr `co :: IP sym ty ~ ty` or `co :: IsLabel sym ty ~ Proxy# sym -> ty`. See also Note [Type-checking overloaded labels] in TcExpr.

wrapIP :: Type -> CoercionR Source #

Create a Expr that wraps a value in an implicit-parameter dictionary. See unwrapIP.