Make dumpIfSet_dyn_or use dumpSDoc

[ghc-hetmet.git] / compiler / hsSyn / HsPat.lhs

diff --git a/compiler/hsSyn/HsPat.lhs b/compiler/hsSyn/HsPat.lhs
index 740bfa7..7fb5f72 100644 (file)
--- a/compiler/hsSyn/HsPat.lhs
+++ b/compiler/hsSyn/HsPat.lhs
@@ -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
@@ -132,12 +134,6 @@ data Pat id
                    (SyntaxExpr id)     -- (>=) function, of type t->t->Bool
                    (SyntaxExpr id)     -- Name of '-' (see RnEnv.lookupSyntaxName)
 
-       ------------ Generics ---------------
-  | TypePat        (LHsType id)        -- Type pattern for generic definitions
-                                        -- e.g  f{| a+b |} = ...
-                                        -- These show up only in class declarations,
-                                        -- and should be a top-level pattern
-
        ------------ Pattern type signatures ---------------
   | SigPatIn       (LPat id)           -- Pattern with a type signature
                    (LHsType id)
@@ -281,7 +277,6 @@ pprPat (NPat l Nothing  _)  = ppr l
 pprPat (NPat l (Just _) _)  = char '-' <> ppr l
 pprPat (NPlusKPat n k _ _)  = hcat [ppr n, char '+', ppr k]
 pprPat (QuasiQuotePat qq)   = ppr qq
-pprPat (TypePat ty)        = ptext (sLit "{|") <> ppr ty <> ptext (sLit "|}")
 pprPat (CoPat co pat _)            = pprHsWrapper (ppr pat) co
 pprPat (SigPatIn pat ty)    = ppr pat <+> dcolon <+> ppr ty
 pprPat (SigPatOut pat ty)   = ppr pat <+> dcolon <+> ppr ty
@@ -439,7 +434,6 @@ isIrrefutableHsPat pat
 
     go1 (QuasiQuotePat {}) = urk pat   -- Gotten rid of by renamer, before
                                        -- isIrrefutablePat is called
-    go1 (TypePat {})       = urk pat
 
     urk pat = pprPanic "isIrrefutableHsPat:" (ppr pat)
 
@@ -463,7 +457,6 @@ hsPatNeedsParens (LitPat {})             = False
 hsPatNeedsParens (NPat {})          = False
 hsPatNeedsParens (NPlusKPat {})      = True
 hsPatNeedsParens (QuasiQuotePat {})  = True
-hsPatNeedsParens (TypePat {})        = False
 
 conPatNeedsParens :: HsConDetails a b -> Bool
 conPatNeedsParens (PrefixCon args) = not (null args)