cvBindsAndSigs,
cvTopDecls,
findSplice, checkDecBrGroup,
+ placeHolderPunRhs,
-- Stuff to do with Foreign declarations
mkImport,
checkTyVars, -- [LHsType RdrName] -> P ()
checkKindSigs, -- [LTyClDecl RdrName] -> P ()
checkInstType, -- HsType -> P HsType
- checkDerivDecl, -- LDerivDecl RdrName -> P (LDerivDecl RdrName)
checkPattern, -- HsExp -> P HsPat
bang_RDR,
checkPatterns, -- SrcLoc -> [HsExp] -> P [HsPat]
"malformed class assertion"
---------------------------------------------------------------------------
--- Checking stand-alone deriving declarations
-
-checkDerivDecl :: LDerivDecl RdrName -> P (LDerivDecl RdrName)
-checkDerivDecl d@(L loc _) =
- do stDerivOn <- extension standaloneDerivingEnabled
- if stDerivOn then return d
- else parseError loc "Illegal stand-alone deriving declaration (use -XStandaloneDeriving)"
-
----------------------------------------------------------------------------
-- Checking statements in a do-expression
-- We parse do { e1 ; e2 ; }
-- as [ExprStmt e1, ExprStmt e2]
HsType ty -> return (TypePat ty)
_ -> patFail loc
-plus_RDR, bang_RDR :: RdrName
+placeHolderPunRhs :: HsExpr RdrName
+-- The RHS of a punned record field will be filled in by the renamer
+-- It's better not to make it an error, in case we want to print it when debugging
+placeHolderPunRhs = HsVar pun_RDR
+
+plus_RDR, bang_RDR, pun_RDR :: RdrName
plus_RDR = mkUnqual varName (fsLit "+") -- Hack
bang_RDR = mkUnqual varName (fsLit "!") -- Hack
+pun_RDR = mkUnqual varName (fsLit "pun-right-hand-side")
checkPatField :: HsRecField RdrName (LHsExpr RdrName) -> P (HsRecField RdrName (LPat RdrName))
checkPatField fld = do { p <- checkLPat (hsRecFieldArg fld)