fix corner case in reduce_vars (#5435)

fixes #5434
2022-05-06 02:32:47 +01:00
parent 1a4e99dc2d
commit 89a35f9fcd
2 changed files with 36 additions and 1 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -649,7 +649,7 @@ Compressor.prototype.compress = function(node) {
            }
            if (!HOP(tw.safe_ids, def.id)) {
                if (!safe) return false;
-                if (safe.read) {
+                if (safe.read || tw.in_loop) {
                    var scope = tw.find_parent(AST_BlockScope);
                    if (scope instanceof AST_Class) return false;
                    if (def.scope.resolve() !== scope.resolve()) return false;