mkClassDecl builds a RdrClassDecl, filling in the names for tycon and datacon by deriving them from the name of the class. We fill in the names for the tycon and datacon corresponding to the class, by deriving them from the name of the class itself. This saves recording the names in the interface file (which would be equally good).

mkInstD :: LInstDecl n -> LHsDecl n Source

cvBindGroup :: OrdList (LHsDecl RdrName) -> P (HsValBinds RdrName) Source

cvBindsAndSigs :: OrdList (LHsDecl RdrName) -> P (LHsBinds RdrName, [LSig RdrName], [LFamilyDecl RdrName], [LTyFamInstDecl RdrName], [LDataFamInstDecl RdrName], [LDocDecl]) Source

cvTopDecls :: OrdList (LHsDecl RdrName) -> [LHsDecl RdrName] Source

Function definitions are restructured here. Each is assumed to be recursive initially, and non recursive definitions are discovered by the dependency analyser.

placeHolderPunRhs :: LHsExpr RdrName Source

mkImport :: Located CCallConv -> Located Safety -> (Located FastString, Located RdrName, LHsType RdrName) -> P (HsDecl RdrName) Source

parseCImport :: Located CCallConv -> Located Safety -> FastString -> String -> Located SourceText -> Maybe ForeignImport Source

mkExport :: Located CCallConv -> (Located FastString, Located RdrName, LHsType RdrName) -> P (HsDecl RdrName) Source

mkExtName :: RdrName -> CLabelString Source

mkGadtDecl :: [Located RdrName] -> LHsType RdrName -> P (ConDecl RdrName) Source

mkSimpleConDecl :: Located RdrName -> [LHsTyVarBndr RdrName] -> LHsContext RdrName -> HsConDeclDetails RdrName -> ConDecl RdrName Source

mkDeprecatedGadtRecordDecl :: SrcSpan -> Located RdrName -> Located [LConDeclField RdrName] -> LHsType RdrName -> P (LConDecl RdrName) Source

mkATDefault :: LTyFamInstDecl RdrName -> Either (SrcSpan, SDoc) (LTyFamDefltEqn RdrName) Source

checkPrecP :: Located Int -> P (Located Int) Source

checkContext :: LHsType RdrName -> P (LHsContext RdrName) Source

checkPattern :: SDoc -> LHsExpr RdrName -> P (LPat RdrName) Source

bang_RDR :: RdrName Source

checkPatterns :: SDoc -> [LHsExpr RdrName] -> P [LPat RdrName] Source

checkMonadComp :: P (HsStmtContext Name) Source

checkCommand :: LHsExpr RdrName -> P (LHsCmd RdrName) Source

checkValDef :: SDoc -> LHsExpr RdrName -> Maybe (LHsType RdrName) -> Located (a, GRHSs RdrName (LHsExpr RdrName)) -> P (HsBind RdrName) Source

checkValSig :: LHsExpr RdrName -> LHsType RdrName -> P (Sig RdrName) Source

checkPartialTypeSignature :: LHsType RdrName -> P (LHsType RdrName) Source

Check the validity of a partial type signature. We check the following things:

There should only be one extra-constraints wildcard in the type signature, i.e. the _ in _ => a -> String. This would be invalid: (Eq a, _) => a -> (Num a, _) => a -> Bool. Extra-constraints wildcards are only allowed in the top-level context.
Named extra-constraints wildcards aren't allowed, e.g. invalid: (Show a, _x) => a -> String.
There is only one extra-constraints wildcard in the context and it must come last, e.g. invalid: (_, Show a) => a -> String or (_, Show a, _) => a -> String.
There should be no unnamed wildcards in the context.
Named wildcards occurring in the context must also occur in the monotype.

An error is reported when an invalid wildcard is found.

checkNoPartialType :: SDoc -> LHsType RdrName -> P () Source

Check that the given type does not contain wildcards, and is thus not a partial type. If it contains wildcards, report an error with the given message.

checkValidPatSynSig :: Sig RdrName -> P (Sig RdrName) Source

Check that the pattern synonym type signature does not contain wildcards.

checkDoAndIfThenElse :: LHsExpr RdrName -> Bool -> LHsExpr RdrName -> Bool -> LHsExpr RdrName -> P () Source

checkRecordSyntax :: Outputable a => Located a -> P (Located a) Source

checkValidDefaults :: [LHsType RdrName] -> P (DefaultDecl RdrName) Source

Check that the default declarations do not contain wildcards in their types, which we do not want as the types in the default declarations must be fully specified.

parseErrorSDoc :: SrcSpan -> SDoc -> P a Source

data ImpExpSubSpec Source

Constructors

ImpExpAbs
ImpExpAll
ImpExpList [Located RdrName]

mkModuleImpExp :: Located RdrName -> ImpExpSubSpec -> IE RdrName Source

mkTypeImpExp :: Located RdrName -> P (Located RdrName) Source