diff options
Diffstat (limited to 'compiler/coreSyn/CoreLint.lhs')
| -rw-r--r-- | compiler/coreSyn/CoreLint.lhs | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/compiler/coreSyn/CoreLint.lhs b/compiler/coreSyn/CoreLint.lhs index b5c79855f2..a5868108d9 100644 --- a/compiler/coreSyn/CoreLint.lhs +++ b/compiler/coreSyn/CoreLint.lhs @@ -7,12 +7,7 @@ A ``lint'' pass to check for Core correctness \begin{code} --- The above warning supression flag is a temporary kludge. --- While working on this module you are encouraged to remove it and --- detab the module (please do the detabbing in a separate patch). See --- http://ghc.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#TabsvsSpaces --- for details - +{-# LANGUAGE CPP #-} {-# OPTIONS_GHC -fprof-auto #-} module CoreLint ( lintCoreBindings, lintUnfolding, lintExpr ) where @@ -856,6 +851,9 @@ lintCoercion co@(TyConAppCo r tc cos) ; checkRole co2 r r2 ; return (rk, mkFunTy s1 s2, mkFunTy t1 t2, r) } + | Just {} <- synTyConDefn_maybe tc + = failWithL (ptext (sLit "Synonym in TyConAppCo:") <+> ppr co) + | otherwise = do { (ks,ss,ts,rs) <- mapAndUnzip4M lintCoercion cos ; rk <- lint_co_app co (tyConKind tc) (ss `zip` ks) |