Add rebindable syntax for if-then-else

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

diff --git a/compiler/hsSyn/HsUtils.lhs b/compiler/hsSyn/HsUtils.lhs
index ea24327..b2e981c 100644 (file)
--- a/compiler/hsSyn/HsUtils.lhs
+++ b/compiler/hsSyn/HsUtils.lhs
@@ -18,7 +18,7 @@ module HsUtils(
   -- Terms
   mkHsPar, mkHsApp, mkHsConApp, mkSimpleHsAlt,
   mkSimpleMatch, unguardedGRHSs, unguardedRHS, 
-  mkMatchGroup, mkMatch, mkHsLam,
+  mkMatchGroup, mkMatch, mkHsLam, mkHsIf,
   mkHsWrap, mkLHsWrap, mkHsWrapCoI, mkLHsWrapCoI,
   coiToHsWrapper, mkHsDictLet,
   mkHsOpApp, mkHsDo, mkHsWrapPat, mkHsWrapPatCoI,
@@ -205,6 +205,9 @@ noRebindableInfo = error "noRebindableInfo"         -- Just another placeholder;
 
 mkHsDo ctxt stmts body = HsDo ctxt stmts body placeHolderType
 
+mkHsIf :: LHsExpr id -> LHsExpr id -> LHsExpr id -> HsExpr id
+mkHsIf c a b = HsIf (Just noSyntaxExpr) c a b
+
 mkNPat lit neg     = NPat lit neg noSyntaxExpr
 mkNPlusKPat id lit = NPlusKPat id lit noSyntaxExpr noSyntaxExpr
 
@@ -329,7 +332,7 @@ nlList   :: [LHsExpr id] -> LHsExpr id
 
 nlHsLam        match           = noLoc (HsLam (mkMatchGroup [match]))
 nlHsPar e              = noLoc (HsPar e)
-nlHsIf cond true false = noLoc (HsIf cond true false)
+nlHsIf cond true false = noLoc (mkHsIf cond true false)
 nlHsCase expr matches  = noLoc (HsCase expr (mkMatchGroup matches))
 nlList exprs           = noLoc (ExplicitList placeHolderType exprs)