fix corner case in reduce_vars (#3124)

2018-05-06 16:42:35 +08:00
parent f37b91879f
commit 6b91d12ec3
2 changed files with 38 additions and 2 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -383,7 +383,15 @@ merge(Compressor.prototype, {
        }

        function mark_defun(tw, def) {
-            if (def.id in tw.defun_ids) return def.fixed;
+            if (def.id in tw.defun_ids) {
+                var marker = tw.defun_ids[def.id];
+                if (!marker) return;
+                if (marker !== tw.safe_ids) {
+                    tw.defun_ids[def.id] = undefined;
+                    return;
+                }
+                return def.fixed;
+            }
            if (!tw.in_loop) {
                tw.defun_ids[def.id] = tw.safe_ids;
                return def.fixed;