X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2FbasicTypes%2FSrcLoc.lhs;h=06f8ec8c27ca1b121f931f8e12e265490dcb54e1;hb=4f37664780b85725ba3552b7de11c0e5e79d3fee;hp=d3db8667f209e9f3cc9254bbfa707e03c2b68530;hpb=7998a24404ffa577a3c303e37e4cfe0baf846454;p=ghc-hetmet.git

diff --git a/compiler/basicTypes/SrcLoc.lhs b/compiler/basicTypes/SrcLoc.lhs
index d3db866..06f8ec8 100644
--- a/compiler/basicTypes/SrcLoc.lhs
+++ b/compiler/basicTypes/SrcLoc.lhs
@@ -165,11 +165,11 @@ instance Ord SrcLoc where
    
 cmpSrcLoc :: SrcLoc -> SrcLoc -> Ordering
 cmpSrcLoc (UnhelpfulLoc s1) (UnhelpfulLoc s2) = s1 `compare` s2
-cmpSrcLoc (UnhelpfulLoc _)  _other            = LT
+cmpSrcLoc (UnhelpfulLoc _)  (SrcLoc _ _ _)    = GT
+cmpSrcLoc (SrcLoc _ _ _)    (UnhelpfulLoc _)  = LT
 
 cmpSrcLoc (SrcLoc s1 l1 c1) (SrcLoc s2 l2 c2)      
   = (s1 `compare` s2) `thenCmp` (l1 `compare` l2) `thenCmp` (c1 `compare` c2)
-cmpSrcLoc (SrcLoc _ _ _) _other = GT
 
 instance Outputable SrcLoc where
     ppr (SrcLoc src_path src_line src_col)
@@ -454,7 +454,7 @@ pprDefnLoc loc
 \begin{code}
 -- | We attach SrcSpans to lots of things, so let's have a datatype for it.
 data Located e = L SrcSpan e
-  deriving (Typeable, Data)
+  deriving (Eq, Ord, Typeable, Data)
 
 unLoc :: Located e -> e
 unLoc (L _ e) = e