Make another parse error more informative

[ghc-hetmet.git] / compiler / parser / RdrHsSyn.lhs

diff --git a/compiler/parser/RdrHsSyn.lhs b/compiler/parser/RdrHsSyn.lhs
index 4c1da58..90220d3 100644 (file)
--- a/compiler/parser/RdrHsSyn.lhs
+++ b/compiler/parser/RdrHsSyn.lhs
@@ -362,7 +362,7 @@ splitCon ty
    split (L _ (HsAppTy t u)) ts = split t (u : ts)
    split (L l (HsTyVar tc))  ts = do data_con <- tyConToDataCon l tc
                                     return (data_con, mk_rest ts)
-   split (L l _) _             = parseError l "parse error in data/newtype declaration"
+   split (L l _) _             = parseErrorSDoc l (text "parse error in constructor in data/newtype declaration:" <+> ppr ty)
 
    mk_rest [L _ (HsRecTy flds)] = RecCon flds
    mk_rest ts                   = PrefixCon ts