fix corner case in unused (#5066)

fixes #5065
2021-07-10 17:43:01 +01:00
parent f67dd31cbb
commit aae1fcd12d
2 changed files with 19 additions and 0 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -7036,7 +7036,10 @@ merge(Compressor.prototype, {
                    if (compressor.option("default_values") && value && value.is_defined(compressor)) {
                        node = node.name;
                    } else {
+                        var save_drop = drop;
+                        drop = false;
                        var trimmed = trim_default(trimmer, node);
+                        drop = save_drop;
                        if (!trimmed && drop && value) value = value.drop_side_effect_free(compressor);
                        return trimmed;
                    }