optimized refcheck: is identity on patterns

1 files changed, 4 insertions, 0 deletions

diff --git a/sources/scala/tools/scalac/typechecker/RefCheck.scala b/sources/scala/tools/scalac/typechecker/RefCheck.scala
index 52733ed965..f4e69c353f 100755
--- a/sources/scala/tools/scalac/typechecker/RefCheck.scala
+++ b/sources/scala/tools/scalac/typechecker/RefCheck.scala
@@ -1097,6 +1097,10 @@ class RefCheck(globl: scalac.Global) extends Transformer(globl) {
 	}
         super.transform(tree)
 
+      // optimized, buraq 2005-02-21 [RefCheck is identity on patterns]
+        case Tree.CaseDef(pat, guard, body)=>
+          copy.CaseDef(tree, pat,  transform(guard), transform(body));
+
       case Tree$Apply(fn, args) =>
 	// convert case methods to new's
 	val fsym = TreeInfo.methSymbol(fn);