handle `case` correctly under `reduce_vars` (#2993)

fixes #2992

1 files changed, 15 insertions, 6 deletions

diff --git a/lib/compress.js b/lib/compress.js
index 2f109a17..1b52f83e 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -517,6 +517,15 @@ merge(Compressor.prototype, {
             pop(tw);
             return true;
         });
+        def(AST_Case, function(tw) {
+            push(tw);
+            this.expression.walk(tw);
+            pop(tw);
+            push(tw);
+            walk_body(this, tw);
+            pop(tw);
+            return true;
+        });
         def(AST_Conditional, function(tw) {
             this.condition.walk(tw);
             push(tw);
@@ -527,6 +536,12 @@ merge(Compressor.prototype, {
             pop(tw);
             return true;
         });
+        def(AST_Default, function(tw, descend) {
+            push(tw);
+            descend();
+            pop(tw);
+            return true;
+        });
         def(AST_Defun, function(tw, descend, compressor) {
             this.inlined = false;
             var save_ids = tw.safe_ids;
@@ -624,12 +639,6 @@ merge(Compressor.prototype, {
             pop(tw);
             return true;
         });
-        def(AST_SwitchBranch, function(tw, descend) {
-            push(tw);
-            descend();
-            pop(tw);
-            return true;
-        });
         def(AST_SymbolCatch, function() {
             this.definition().fixed = false;
         });