X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2FhsSyn%2FHsPat.lhs;h=7fb5f725334fdb03e2b45c64a93a5b86e9e6edcf;hp=6341a6665ffba8cdf8f9cf6577882177e9808e06;hb=86add45dbfb6f962b65e371143dd467ae783f9e7;hpb=fed25228aec3f3bd2f91c50d67043d83efb1af18

diff --git a/compiler/hsSyn/HsPat.lhs b/compiler/hsSyn/HsPat.lhs
index 6341a66..7fb5f72 100644
--- a/compiler/hsSyn/HsPat.lhs
+++ b/compiler/hsSyn/HsPat.lhs
@@ -24,7 +24,7 @@ module HsPat (
 
         isBangHsBind, isLiftedPatBind,
         isBangLPat, hsPatNeedsParens,
-	isIrrefutableHsPat,
+        isIrrefutableHsPat,
 
 	pprParendLPat
     ) where
@@ -65,7 +65,7 @@ data Pat id
 	-- support hsPatType :: Pat Id -> Type
 
   | VarPat	id			-- Variable
-  | LazyPat	(LPat id)		-- Lazy pattern
+  | LazyPat     (LPat id)               -- Lazy pattern
   | AsPat	(Located id) (LPat id)  -- As pattern
   | ParPat      (LPat id)		-- Parenthesised pattern
   | BangPat	(LPat id)		-- Bang pattern
@@ -122,7 +122,9 @@ data Pat id
   | LitPat	    HsLit		-- Used for *non-overloaded* literal patterns:
 					-- Int#, Char#, Int, Char, String, etc.
 
-  | NPat	    (HsOverLit id)		-- ALWAYS positive
+  | NPat		-- Used for all overloaded literals, 
+    			-- including overloaded strings with -XOverloadedStrings
+                    (HsOverLit id)		-- ALWAYS positive
 		    (Maybe (SyntaxExpr id))	-- Just (Name of 'negate') for negative
 						-- patterns, Nothing otherwise
 		    (SyntaxExpr id)		-- Equality checker, of type t->t->Bool