New syntax for GADT-style record declarations, and associated refactoring

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

diff --git a/compiler/typecheck/TcRules.lhs b/compiler/typecheck/TcRules.lhs
index 50ad098..a95251d 100644 (file)
--- a/compiler/typecheck/TcRules.lhs
+++ b/compiler/typecheck/TcRules.lhs
@@ -6,17 +6,8 @@
 TcRules: Typechecking transformation rules
 
 \begin{code}
-{-# OPTIONS -w #-}
--- The above warning supression flag is a temporary kludge.
--- While working on this module you are encouraged to remove it and fix
--- any warnings in the module. See
---     http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
--- for details
-
 module TcRules ( tcRules ) where
 
-#include "HsVersions.h"
-
 import HsSyn
 import TcRnMonad
 import TcSimplify
@@ -40,7 +31,7 @@ tcRules decls = mapM (wrapLocM tcRule) decls
 tcRule :: RuleDecl Name -> TcM (RuleDecl TcId)
 tcRule (HsRule name act vars lhs fv_lhs rhs fv_rhs)
   = addErrCtxt (ruleCtxt name)                 $ do
-    traceTc (ptext SLIT("---- Rule ------") <+> ppr name)
+    traceTc (ptext (sLit "---- Rule ------") <+> ppr name)
     rule_ty <- newFlexiTyVarTy openTypeKind
 
        -- Deal with the tyvars mentioned in signatures
@@ -95,7 +86,7 @@ tcRule (HsRule name act vars lhs fv_lhs rhs fv_rhs)
                    (mkHsDictLet lhs_binds lhs') fv_lhs
                    (mkHsDictLet rhs_binds rhs') fv_rhs)
 
-
+tcRuleBndrs :: [RuleBndr Name] -> ([Id] -> TcM a) -> TcM a
 tcRuleBndrs [] thing_inside = thing_inside []
 tcRuleBndrs (RuleBndr var : vars) thing_inside
   = do         { ty <- newFlexiTyVarTy openTypeKind
@@ -115,7 +106,8 @@ tcRuleBndrs (RuleBndrSig var rn_ty : vars) thing_inside
          tcExtendIdEnv [id] $
          tcRuleBndrs vars (\ids -> thing_inside (id:ids)) }
 
-ruleCtxt name = ptext SLIT("When checking the transformation rule") <+> 
+ruleCtxt :: FastString -> SDoc
+ruleCtxt name = ptext (sLit "When checking the transformation rule") <+> 
                doubleQuotes (ftext name)
 \end{code}