Add ASSERTs to all calls of nameModule

[ghc-hetmet.git] / compiler / typecheck / TcSplice.lhs

diff --git a/compiler/typecheck/TcSplice.lhs b/compiler/typecheck/TcSplice.lhs
index 51cf392..7139fa8 100644 (file)
--- a/compiler/typecheck/TcSplice.lhs
+++ b/compiler/typecheck/TcSplice.lhs
@@ -63,13 +63,19 @@ import Maybe
 import BasicTypes
 import Panic
 import FastString
+import Data.Typeable (cast)
+import Exception
 
 import qualified Language.Haskell.TH as TH
 -- THSyntax gives access to internal functions and data types
 import qualified Language.Haskell.TH.Syntax as TH
 
 import GHC.Exts                ( unsafeCoerce#, Int#, Int(..) )
-import qualified Control.Exception  as Exception( userErrors )
+#if __GLASGOW_HASKELL__ < 609
+import qualified Exception ( userErrors )
+#else
+import System.IO.Error
+#endif
 \end{code}
 
 Note [Template Haskell levels]
@@ -157,6 +163,7 @@ The predicate we use is TcEnv.thTopLevelId.
 %************************************************************************
 
 \begin{code}
+tcBracket     :: HsBracket Name -> BoxyRhoType -> TcM (LHsExpr TcId)
 tcSpliceDecls :: LHsExpr Name -> TcM [LHsDecl RdrName]
 tcSpliceExpr  :: HsSplice Name -> BoxyRhoType -> TcM (HsExpr TcId)
 kcSpliceType  :: HsSplice Name -> TcM (HsType Name, TcKind)
@@ -166,8 +173,10 @@ runQuasiQuoteExpr :: HsQuasiQuote Name -> TcM (LHsExpr RdrName)
 runQuasiQuotePat  :: HsQuasiQuote Name -> TcM (LPat RdrName)
 
 #ifndef GHCI
-tcSpliceExpr _ e _ = pprPanic "Cant do tcSpliceExpr without GHCi" (ppr e)
-tcSpliceDecls e    = pprPanic "Cant do tcSpliceDecls without GHCi" (ppr e)
+tcBracket     x _ = pprPanic "Cant do tcBracket without GHCi"     (ppr x)
+tcSpliceExpr  e   = pprPanic "Cant do tcSpliceExpr without GHCi"  (ppr e)
+tcSpliceDecls x   = pprPanic "Cant do tcSpliceDecls without GHCi" (ppr x)
+kcSpliceType  x   = pprPanic "Cant do kcSpliceType without GHCi"  (ppr x)
 
 runQuasiQuoteExpr q = pprPanic "Cant do runQuasiQuoteExpr without GHCi" (ppr q)
 runQuasiQuotePat  q = pprPanic "Cant do runQuasiQuotePat without GHCi" (ppr q)
@@ -193,7 +202,6 @@ Desugared:  f = do { s7 <- g Int 3
                       ; return (ConE "Data.Maybe.Just" s7) }
 
 \begin{code}
-tcBracket :: HsBracket Name -> BoxyRhoType -> TcM (LHsExpr TcId)
 tcBracket brack res_ty = do
    level <- getStage
    case bracketOK level of {
@@ -591,10 +599,24 @@ runMeta convert expr
 
        ; case either_tval of
            Right v -> return v
+#if __GLASGOW_HASKELL__ < 609
            Left exn | Just s <- Exception.userErrors exn
                     , s == "IOEnv failure" 
                     -> failM   -- Error already in Tc monad
                     | otherwise -> failWithTc (mk_msg "run" exn)       -- Exception
+#else
+           Left (SomeException exn) ->
+                    case cast exn of
+                    Just (ErrorCall "IOEnv failure") ->
+                        failM -- Error already in Tc monad
+                    _ ->
+                        case cast exn of
+                        Just ioe
+                         | isUserError ioe &&
+                           (ioeGetErrorString ioe == "IOEnv failure") ->
+                            failM -- Error already in Tc monad
+                        _ -> failWithTc (mk_msg "run" exn)     -- Exception
+#endif
         }}}
   where
     mk_msg s exn = vcat [text "Exception when trying to" <+> text s <+> text "compile-time code:",
@@ -918,7 +940,7 @@ reifyName thing
        -- have free variables, we may need to generate NameL's for them.
   where
     name    = getName thing
-    mod     = nameModule name
+    mod     = ASSERT( isExternalName name ) nameModule name
     pkg_str = packageIdString (modulePackageId mod)
     mod_str = moduleNameString (moduleName mod)
     occ_str = occNameString occ