fix corner case in arguments (#4387)

fixes #4386
2020-12-17 05:51:34 +00:00
parent f68e267830
commit 75e9fd8417
2 changed files with 22 additions and 0 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -9843,6 +9843,8 @@ merge(Compressor.prototype, {
            var argname = fn.argnames[index];
            if (def.deleted && def.deleted[index]) {
                argname = null;
+            } else if (argname instanceof AST_Destructured) {
+                argname = null;
            } else if (argname && (compressor.has_directive("use strict")
                || !(fn_parent instanceof AST_Call && index < fn_parent.args.length))) {
                var arg_def = argname.definition();