Safe Haskell	None
Language	GHC2021

GHC.Tc.Gen.Head

Synopsis

data HsExprArg (p :: TcPass) where
- EValArg :: forall (p :: TcPass). {..} -> HsExprArg p
- EValArgQL :: {..} -> HsExprArg 'TcpInst
- ETypeArg :: forall (p :: TcPass). {..} -> HsExprArg p
- EPrag :: forall (p :: TcPass). AppCtxt -> HsPragE (GhcPass (XPass p)) -> HsExprArg p
- EWrap :: forall (p :: TcPass). EWrap -> HsExprArg p
data TcPass
- = TcpRn
- | TcpInst
- | TcpTc
data QLFlag
- = DoQL
- | NoQL
data EWrap
- = EPar AppCtxt
- | EExpand HsThingRn
- | EHsWrap HsWrapper
data AppCtxt
- = VAExpansion HsThingRn SrcSpan SrcSpan
- | VACall (HsExpr GhcRn) Int SrcSpan
appCtxtLoc :: AppCtxt -> SrcSpan
insideExpansion :: AppCtxt -> Bool
splitHsApps :: HsExpr GhcRn -> TcM ((HsExpr GhcRn, AppCtxt), [HsExprArg 'TcpRn])
rebuildHsApps :: (HsExpr GhcTc, AppCtxt) -> [HsExprArg 'TcpTc] -> HsExpr GhcTc
addArgWrap :: forall (p :: TcPass). HsWrapper -> [HsExprArg p] -> [HsExprArg p]
isHsValArg :: forall (id :: TcPass). HsExprArg id -> Bool
leadingValArgs :: [HsExprArg 'TcpRn] -> [LHsExpr GhcRn]
isVisibleArg :: forall (id :: TcPass). HsExprArg id -> Bool
tcInferAppHead :: (HsExpr GhcRn, AppCtxt) -> TcM (HsExpr GhcTc, TcSigmaType)
tcInferAppHead_maybe :: HsExpr GhcRn -> TcM (Maybe (HsExpr GhcTc, TcSigmaType))
tcInferId :: Name -> TcM (HsExpr GhcTc, TcSigmaType)
tcCheckId :: Name -> ExpRhoType -> TcM (HsExpr GhcTc)
obviousSig :: HsExpr GhcRn -> Maybe (LHsSigWcType GhcRn)
tyConOf :: FamInstEnvs -> TcSigmaType -> Maybe TyCon
tyConOfET :: FamInstEnvs -> ExpRhoType -> Maybe TyCon
fieldNotInType :: RecSelParent -> RdrName -> TcRnMessage
nonBidirectionalErr :: Name -> TcRnMessage
pprArgInst :: HsExprArg 'TcpInst -> SDoc
addHeadCtxt :: AppCtxt -> TcM a -> TcM a
addExprCtxt :: HsExpr GhcRn -> TcRn a -> TcRn a
addStmtCtxt :: ExprStmt GhcRn -> TcRn a -> TcRn a
addFunResCtxt :: forall (p :: TcPass) a. HsExpr GhcTc -> [HsExprArg p] -> TcType -> ExpRhoType -> TcM a -> TcM a

Documentation

data HsExprArg (p :: TcPass) where Source #

Constructors

EValArg
Fields :: forall (p :: TcPass). { ea_ctxt :: AppCtxt , ea_arg_ty :: !(XEVAType p) , ea_arg :: LHsExpr (GhcPass (XPass p)) } -> HsExprArg p
EValArgQL
Fields :: { eaql_ctxt :: AppCtxt , eaql_arg_ty :: Scaled TcSigmaType , eaql_larg :: LHsExpr GhcRn , eaql_tc_fun :: (HsExpr GhcTc, AppCtxt) , eaql_fun_ue :: UsageEnv , eaql_args :: [HsExprArg 'TcpInst] , eaql_wanted :: WantedConstraints , eaql_encl :: Bool , eaql_res_rho :: TcRhoType } -> HsExprArg 'TcpInst
ETypeArg
Fields :: forall (p :: TcPass). { ea_ctxt :: AppCtxt , ea_hs_ty :: LHsWcType GhcRn , ea_ty_arg :: !(XETAType p) } -> HsExprArg p
EPrag :: forall (p :: TcPass). AppCtxt -> HsPragE (GhcPass (XPass p)) -> HsExprArg p
EWrap :: forall (p :: TcPass). EWrap -> HsExprArg p

Instances

Instances details

OutputableBndrId (XPass p) => Outputable (HsExprArg p) Source #
Instance details Defined in GHC.Tc.Gen.Head Methods ppr :: HsExprArg p -> SDoc Source #

data TcPass Source #

Constructors

TcpRn
TcpInst
TcpTc

data QLFlag Source #

Constructors

DoQL
NoQL

Instances

Instances details

Outputable QLFlag Source #
Instance details Defined in GHC.Tc.Gen.Head Methods ppr :: QLFlag -> SDoc Source #

data EWrap Source #

Constructors

EPar AppCtxt
EExpand HsThingRn
EHsWrap HsWrapper

Instances

Instances details

Outputable EWrap Source #
Instance details Defined in GHC.Tc.Gen.Head Methods ppr :: EWrap -> SDoc Source #

data AppCtxt Source #

Constructors

VAExpansion HsThingRn SrcSpan SrcSpan
VACall (HsExpr GhcRn) Int SrcSpan

Instances

Instances details

Outputable AppCtxt Source #
Instance details Defined in GHC.Tc.Gen.Head Methods ppr :: AppCtxt -> SDoc Source #

appCtxtLoc :: AppCtxt -> SrcSpan Source #

insideExpansion :: AppCtxt -> Bool Source #

splitHsApps :: HsExpr GhcRn -> TcM ((HsExpr GhcRn, AppCtxt), [HsExprArg 'TcpRn]) Source #

rebuildHsApps Source #

Arguments

:: (HsExpr GhcTc, AppCtxt)	the function being applied
-> [HsExprArg 'TcpTc]	the arguments to the function
-> HsExpr GhcTc

Rebuild an application: takes a type-checked application head expression together with arguments in the form of typechecked HsExprArgs and returns a typechecked application of the head to the arguments.

This performs a representation-polymorphism check to ensure that representation-polymorphic unlifted newtypes have been eta-expanded.

See Note [Eta-expanding rep-poly unlifted newtypes].

addArgWrap :: forall (p :: TcPass). HsWrapper -> [HsExprArg p] -> [HsExprArg p] Source #

isHsValArg :: forall (id :: TcPass). HsExprArg id -> Bool Source #

leadingValArgs :: [HsExprArg 'TcpRn] -> [LHsExpr GhcRn] Source #

isVisibleArg :: forall (id :: TcPass). HsExprArg id -> Bool Source #

tcInferAppHead :: (HsExpr GhcRn, AppCtxt) -> TcM (HsExpr GhcTc, TcSigmaType) Source #

tcInferAppHead_maybe :: HsExpr GhcRn -> TcM (Maybe (HsExpr GhcTc, TcSigmaType)) Source #

tcInferId :: Name -> TcM (HsExpr GhcTc, TcSigmaType) Source #

tcCheckId :: Name -> ExpRhoType -> TcM (HsExpr GhcTc) Source #

obviousSig :: HsExpr GhcRn -> Maybe (LHsSigWcType GhcRn) Source #

tyConOf :: FamInstEnvs -> TcSigmaType -> Maybe TyCon Source #