fix corner case in merge_vars (#4289)

fixes #4288
2020-11-17 20:03:20 +00:00
parent 383163afa6
commit caa92aea5d
3 changed files with 48 additions and 8 deletions
--- a/lib/ast.js
+++ b/lib/ast.js
@@ -509,10 +509,8 @@ var AST_Lambda = DEFNODE("Lambda", "name argnames length_read uses_arguments", {
    },
    each_argname: function(visit) {
        var tw = new TreeWalker(function(node) {
-            if (node instanceof AST_DestructuredObject) {
-                node.properties.forEach(function(prop) {
-                    prop.value.walk(tw);
-                });
+            if (node instanceof AST_DestructuredKeyVal) {
+                node.value.walk(tw);
                return true;
            }
            if (node instanceof AST_SymbolFunarg) visit(node);