X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2FbasicTypes%2FId.lhs;h=798bde666cbf691e2acb3478f517e91822cc6c1f;hb=7929e42210b7d8ff518cfcdb353188c283dd48e5;hp=c7ce818adb64b34fe7e59fc5ca7542377fd50cd2;hpb=0065d5ab628975892cea1ec7303f968c3338cbe1;p=ghc-hetmet.git

diff --git a/compiler/basicTypes/Id.lhs b/compiler/basicTypes/Id.lhs
index c7ce818..798bde6 100644
--- a/compiler/basicTypes/Id.lhs
+++ b/compiler/basicTypes/Id.lhs
@@ -66,7 +66,7 @@ module Id (
 	idNewStrictness, idNewStrictness_maybe, 
 	idWorkerInfo,
 	idUnfolding,
-	idSpecialisation, idCoreRules,
+	idSpecialisation, idCoreRules, idHasRules,
 	idCafInfo,
 	idLBVarInfo,
 	idOccInfo,
@@ -409,6 +409,9 @@ idSpecialisation id = specInfo (idInfo id)
 idCoreRules :: Id -> [CoreRule]
 idCoreRules id = specInfoRules (idSpecialisation id)
 
+idHasRules :: Id -> Bool
+idHasRules id = not (isEmptySpecInfo (idSpecialisation id))
+
 setIdSpecialisation :: Id -> SpecInfo -> Id
 setIdSpecialisation id spec_info = modifyIdInfo (`setSpecInfo` spec_info) id
 
@@ -472,7 +475,7 @@ idLBVarInfo id = lbvarInfo (idInfo id)
 isOneShotBndr :: Id -> Bool
 -- This one is the "business end", called externally.
 -- Its main purpose is to encapsulate the Horrible State Hack
-isOneShotBndr id = isOneShotLambda id || (isStateHackType (idType id))
+isOneShotBndr id = isOneShotLambda id || isStateHackType (idType id)
 
 isStateHackType :: Type -> Bool
 isStateHackType ty