fix corner case in reduce_vars (#4938)

fixes #4937
2021-05-15 15:38:09 +01:00
parent bbed9b13b1
commit a7698f8845
2 changed files with 32 additions and 1 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -1143,7 +1143,7 @@ merge(Compressor.prototype, {
            var parent = tw.parent();
            if (parent instanceof AST_ExportDeclaration || parent instanceof AST_ExportDefault) def.single_use = false;
            if (tw.defun_visited[def.id]) return true;
-            if (tw.defun_ids[def.id] !== tw.safe_ids) return true;
+            if (def.init === fn && tw.defun_ids[def.id] !== tw.safe_ids) return true;
            tw.defun_visited[def.id] = true;
            fn.inlined = false;
            push(tw);