Merge 1874ece864 into e9920f7ca1

2017-03-08 21:52:15 +00:00 · 2017-03-08 21:52:15 +00:00 · 988f937cfa
commit 988f937cfa
parent e9920f7ca1 1874ece864
1 changed files with 1 additions and 0 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@ -1813,6 +1813,7 @@ merge(Compressor.prototype, {
                        if (!compressor.option("keep_fargs")) {
                            for (var a = node.argnames, i = a.length; --i >= 0;) {
                                var sym = a[i];
+                                if (!sym) break;
                                if (!(sym.definition().id in in_use_ids)) {
                                    a.pop();
                                    compressor.warn("Dropping unused function argument {name} [{file}:{line},{col}]", {