fix corner case in collapse_vars (#4946)

2021-05-19 22:11:39 +01:00
parent d930c705f6
commit d6152e6a76
3 changed files with 37 additions and 2 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -1911,7 +1911,8 @@ merge(Compressor.prototype, {
                    if (!--replaced) abort = true;
                    if (is_lhs(node, multi_replacer.parent())) return node;
                    var ref = rvalue.clone();
-                    value_def.references.push(ref);
+                    ref.scope = node.scope;
+                    ref.reference();
                    if (replaced == assign_pos) {
                        abort = true;
                        return make_node(AST_Assign, candidate, {