fix corner case in collapse_vars (#4797)

2021-03-17 23:50:55 +00:00
parent d837a46ebd
commit 7da49b5709
2 changed files with 25 additions and 0 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -2428,6 +2428,7 @@ merge(Compressor.prototype, {
                    if (parent.condition !== node) return node;
                    return find_stop_value(parent, level + 1);
                }
+                if (parent instanceof AST_Yield) return find_stop_value(parent, level + 1);
                return null;
            }