fix corner case in collapse_vars (#4875)

fixes #4874
2021-04-27 01:54:02 +01:00
parent 97bd56b7e8
commit 4cccc01f3e
2 changed files with 28 additions and 0 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -1963,6 +1963,7 @@ merge(Compressor.prototype, {
                        } else if (candidate instanceof AST_VarDef) {
                            replaced = !compressor.exposed(def) && def.references.length == def.replaced;
                        }
+                        value_def.last_ref = false;
                        value_def.single_use = false;
                    }
                    if (replaced && !remove_candidate(candidate)) statements.splice(stat_index, 1);