GHC.Parser.Types

Documentation

data SumOrTuple b

Constructors

Sum ConTag Arity (LocatedA b) [EpaLocation] [EpaLocation]

Last two are the locations of the '|' before and after the payload

Tuple [Either (EpAnn EpaLocation) (LocatedA b)]

pprSumOrTuple :: Outputable b => Boxity -> SumOrTuple b -> SDoc

data PatBuilder p

See Note [Ambiguous syntactic categories] and Note [PatBuilder]

Constructors

PatBuilderPat (Pat p)

PatBuilderPar (LHsToken "(" p) (LocatedA (PatBuilder p)) (LHsToken ")" p)

PatBuilderApp (LocatedA (PatBuilder p)) (LocatedA (PatBuilder p))

PatBuilderAppType (LocatedA (PatBuilder p)) (LHsToken "@" p) (HsPatSigType GhcPs)

PatBuilderOpApp (LocatedA (PatBuilder p)) (LocatedN RdrName) (LocatedA (PatBuilder p)) (EpAnn [AddEpAnn])

PatBuilderVar (LocatedN RdrName)

PatBuilderOverLit (HsOverLit GhcPs)

Instances

DisambECP (PatBuilder GhcPs)

Defined in GHC.Parser.PostProcess

Associated Types

type Body (PatBuilder GhcPs) :: Type -> Type

type InfixOp (PatBuilder GhcPs)

type FunArg (PatBuilder GhcPs)

Methods

ecpFromCmd' :: LHsCmd GhcPs -> PV (LocatedA (PatBuilder GhcPs))

ecpFromExp' :: LHsExpr GhcPs -> PV (LocatedA (PatBuilder GhcPs))

mkHsProjUpdatePV :: SrcSpan -> Located [LocatedAn NoEpAnns (DotFieldOcc GhcPs)] -> LocatedA (PatBuilder GhcPs) -> Bool -> [AddEpAnn] -> PV (LHsRecProj GhcPs (LocatedA (PatBuilder GhcPs)))

mkHsLamPV :: SrcSpan -> (EpAnnComments -> MatchGroup GhcPs (LocatedA (PatBuilder GhcPs))) -> PV (LocatedA (PatBuilder GhcPs))

mkHsLetPV :: SrcSpan -> LHsToken "let" GhcPs -> HsLocalBinds GhcPs -> LHsToken "in" GhcPs -> LocatedA (PatBuilder GhcPs) -> PV (LocatedA (PatBuilder GhcPs))

superInfixOp :: (DisambInfixOp (InfixOp (PatBuilder GhcPs)) => PV (LocatedA (PatBuilder GhcPs))) -> PV (LocatedA (PatBuilder GhcPs))

mkHsOpAppPV :: SrcSpan -> LocatedA (PatBuilder GhcPs) -> LocatedN (InfixOp (PatBuilder GhcPs)) -> LocatedA (PatBuilder GhcPs) -> PV (LocatedA (PatBuilder GhcPs))

mkHsCasePV :: SrcSpan -> LHsExpr GhcPs -> LocatedL [LMatch GhcPs (LocatedA (PatBuilder GhcPs))] -> EpAnnHsCase -> PV (LocatedA (PatBuilder GhcPs))

mkHsLamCasePV :: SrcSpan -> LamCaseVariant -> LocatedL [LMatch GhcPs (LocatedA (PatBuilder GhcPs))] -> [AddEpAnn] -> PV (LocatedA (PatBuilder GhcPs))

superFunArg :: (DisambECP (FunArg (PatBuilder GhcPs)) => PV (LocatedA (PatBuilder GhcPs))) -> PV (LocatedA (PatBuilder GhcPs))

mkHsAppPV :: SrcSpanAnnA -> LocatedA (PatBuilder GhcPs) -> LocatedA (FunArg (PatBuilder GhcPs)) -> PV (LocatedA (PatBuilder GhcPs))

mkHsAppTypePV :: SrcSpanAnnA -> LocatedA (PatBuilder GhcPs) -> LHsToken "@" GhcPs -> LHsType GhcPs -> PV (LocatedA (PatBuilder GhcPs))

mkHsIfPV :: SrcSpan -> LHsExpr GhcPs -> Bool -> LocatedA (PatBuilder GhcPs) -> Bool -> LocatedA (PatBuilder GhcPs) -> AnnsIf -> PV (LocatedA (PatBuilder GhcPs))

mkHsDoPV :: SrcSpan -> Maybe ModuleName -> LocatedL [LStmt GhcPs (LocatedA (PatBuilder GhcPs))] -> AnnList -> PV (LocatedA (PatBuilder GhcPs))

mkHsParPV :: SrcSpan -> LHsToken "(" GhcPs -> LocatedA (PatBuilder GhcPs) -> LHsToken ")" GhcPs -> PV (LocatedA (PatBuilder GhcPs))

mkHsVarPV :: LocatedN RdrName -> PV (LocatedA (PatBuilder GhcPs))

mkHsLitPV :: Located (HsLit GhcPs) -> PV (Located (PatBuilder GhcPs))

mkHsOverLitPV :: LocatedAn a (HsOverLit GhcPs) -> PV (LocatedAn a (PatBuilder GhcPs))

mkHsWildCardPV :: SrcSpan -> PV (Located (PatBuilder GhcPs))

mkHsTySigPV :: SrcSpanAnnA -> LocatedA (PatBuilder GhcPs) -> LHsType GhcPs -> [AddEpAnn] -> PV (LocatedA (PatBuilder GhcPs))

mkHsExplicitListPV :: SrcSpan -> [LocatedA (PatBuilder GhcPs)] -> AnnList -> PV (LocatedA (PatBuilder GhcPs))

mkHsSplicePV :: Located (HsUntypedSplice GhcPs) -> PV (Located (PatBuilder GhcPs))

mkHsRecordPV :: Bool -> SrcSpan -> SrcSpan -> LocatedA (PatBuilder GhcPs) -> ([Fbind (PatBuilder GhcPs)], Maybe SrcSpan) -> [AddEpAnn] -> PV (LocatedA (PatBuilder GhcPs))

mkHsNegAppPV :: SrcSpan -> LocatedA (PatBuilder GhcPs) -> [AddEpAnn] -> PV (LocatedA (PatBuilder GhcPs))

mkHsSectionR_PV :: SrcSpan -> LocatedA (InfixOp (PatBuilder GhcPs)) -> LocatedA (PatBuilder GhcPs) -> PV (Located (PatBuilder GhcPs))

mkHsViewPatPV :: SrcSpan -> LHsExpr GhcPs -> LocatedA (PatBuilder GhcPs) -> [AddEpAnn] -> PV (LocatedA (PatBuilder GhcPs))

mkHsAsPatPV :: SrcSpan -> LocatedN RdrName -> LHsToken "@" GhcPs -> LocatedA (PatBuilder GhcPs) -> PV (LocatedA (PatBuilder GhcPs))

mkHsLazyPatPV :: SrcSpan -> LocatedA (PatBuilder GhcPs) -> [AddEpAnn] -> PV (LocatedA (PatBuilder GhcPs))

mkHsBangPatPV :: SrcSpan -> LocatedA (PatBuilder GhcPs) -> [AddEpAnn] -> PV (LocatedA (PatBuilder GhcPs))

mkSumOrTuplePV :: SrcSpanAnnA -> Boxity -> SumOrTuple (PatBuilder GhcPs) -> [AddEpAnn] -> PV (LocatedA (PatBuilder GhcPs))

rejectPragmaPV :: LocatedA (PatBuilder GhcPs) -> PV ()

Outputable (PatBuilder GhcPs)

Defined in GHC.Parser.Types

Methods

ppr :: PatBuilder GhcPs -> SDoc

type Body (PatBuilder GhcPs)

Defined in GHC.Parser.PostProcess

type Body (PatBuilder GhcPs) = PatBuilder

type FunArg (PatBuilder GhcPs)

Defined in GHC.Parser.PostProcess

type FunArg (PatBuilder GhcPs) = PatBuilder GhcPs

type InfixOp (PatBuilder GhcPs)

Defined in GHC.Parser.PostProcess

type InfixOp (PatBuilder GhcPs) = RdrName

type Anno [LocatedA (Match GhcPs (LocatedA (PatBuilder GhcPs)))]

Defined in GHC.Parser.PostProcess

type Anno [LocatedA (Match GhcPs (LocatedA (PatBuilder GhcPs)))] = SrcSpanAnnL

type Anno [LocatedA (StmtLR GhcPs GhcPs (LocatedA (PatBuilder GhcPs)))]

Defined in GHC.Parser.Types

type Anno [LocatedA (StmtLR GhcPs GhcPs (LocatedA (PatBuilder GhcPs)))] = SrcSpanAnnL

type Anno (GRHS GhcPs (LocatedA (PatBuilder GhcPs)))

Defined in GHC.Parser.PostProcess

type Anno (GRHS GhcPs (LocatedA (PatBuilder GhcPs))) = SrcAnn NoEpAnns

type Anno (Match GhcPs (LocatedA (PatBuilder GhcPs)))

Defined in GHC.Parser.PostProcess

type Anno (Match GhcPs (LocatedA (PatBuilder GhcPs))) = SrcSpanAnnA

type Anno (StmtLR GhcPs GhcPs (LocatedA (PatBuilder GhcPs)))

Defined in GHC.Parser.PostProcess

type Anno (StmtLR GhcPs GhcPs (LocatedA (PatBuilder GhcPs))) = SrcSpanAnnA

data DataConBuilder

An accumulator to build a prefix data constructor, e.g. when parsing MkT A B C, the accumulator will evolve as follows:

 1. PrefixDataConBuilder []        MkT
 2. PrefixDataConBuilder [A]       MkT
 3. PrefixDataConBuilder [A, B]    MkT
 4. PrefixDataConBuilder [A, B, C] MkT
 

There are two reasons we have a separate builder type instead of using HsConDeclDetails GhcPs directly:

1. It's faster, because OrdList gives us constant-time snoc.
2. Having a separate type helps ensure that we don't forget to finalize a RecTy into a RecCon (we do that in dataConBuilderDetails).

See Note [PatBuilder] for another builder type used in the parser. Here the technique is similar, but the motivation is different.

Constructors

PrefixDataConBuilder (OrdList (LHsType GhcPs)) (LocatedN RdrName)

InfixDataConBuilder (LHsType GhcPs) (LocatedN RdrName) (LHsType GhcPs)

Instances

DisambTD DataConBuilder

Defined in GHC.Parser.PostProcess

Methods

mkHsAppTyHeadPV :: LHsType GhcPs -> PV (LocatedA DataConBuilder)

mkHsAppTyPV :: LocatedA DataConBuilder -> LHsType GhcPs -> PV (LocatedA DataConBuilder)

mkHsAppKindTyPV :: LocatedA DataConBuilder -> SrcSpan -> LHsType GhcPs -> PV (LocatedA DataConBuilder)

mkHsOpTyPV :: PromotionFlag -> LHsType GhcPs -> LocatedN RdrName -> LHsType GhcPs -> PV (LocatedA DataConBuilder)

mkUnpackednessPV :: Located UnpackednessPragma -> LocatedA DataConBuilder -> PV (LocatedA DataConBuilder)

Outputable DataConBuilder

Defined in GHC.Parser.Types

Methods

ppr :: DataConBuilder -> SDoc