X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Ftypecheck%2FTcSplice.lhs;h=6da5741037196fb8207de34c47ce44994914899a;hp=3cc2eb5570d0b9007162f9a99cd3334a7d649521;hb=b2bd63f99d643f6b3eb30bb72bb9ae26d4183252;hpb=cba098d7823815baa66bcaff7e4f8b54855ae6eb;ds=sidebyside

diff --git a/compiler/typecheck/TcSplice.lhs b/compiler/typecheck/TcSplice.lhs
index 3cc2eb5..6da5741 100644
--- a/compiler/typecheck/TcSplice.lhs
+++ b/compiler/typecheck/TcSplice.lhs
@@ -897,13 +897,17 @@ instance TH.Quasi (IOEnv (Env TcGblEnv TcLclEnv)) where
   qReport False msg = addReport (text msg) empty
 
   qLocation = do { m <- getModule
-		 ; l <- getSrcSpanM
-		 ; return (TH.Loc { TH.loc_filename = unpackFS (srcSpanFile l)
-				  , TH.loc_module   = moduleNameString (moduleName m)
-				  , TH.loc_package  = packageIdString (modulePackageId m)
-				  , TH.loc_start = (srcSpanStartLine l, srcSpanStartCol l)
-				  , TH.loc_end = (srcSpanEndLine   l, srcSpanEndCol   l) }) }
-		
+                 ; l <- getSrcSpanM
+                 ; r <- case l of
+                        UnhelpfulSpan _ -> pprPanic "qLocation: Unhelpful location"
+                                                    (ppr l)
+                        RealSrcSpan s -> return s
+                 ; return (TH.Loc { TH.loc_filename = unpackFS (srcSpanFile r)
+                                  , TH.loc_module   = moduleNameString (moduleName m)
+                                  , TH.loc_package  = packageIdString (modulePackageId m)
+                                  , TH.loc_start = (srcSpanStartLine r, srcSpanStartCol r)
+                                  , TH.loc_end = (srcSpanEndLine   r, srcSpanEndCol   r) }) }
+
   qReify v = reify v
   qClassInstances = lookupClassInstances