fix corner case in reduce_vars (#4281)

fixes #4280
2020-11-17 04:59:44 +00:00
parent 6dbacb5e3f
commit b9798a01a8
2 changed files with 31 additions and 1 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -619,7 +619,15 @@ merge(Compressor.prototype, {
                        if (node.key instanceof AST_Node) node.key.walk(tw);
                        fixed = function() {
                            var key = node.key;
-                            return make_node(typeof key == "string" ? AST_Dot : AST_Sub, node, {
+                            var type = AST_Sub;
+                            if (typeof key == "string") {
+                                if (is_identifier_string(key)) {
+                                    type = AST_Dot;
+                                } else {
+                                    key = make_node_from_constant(key, node);
+                                }
+                            }
+                            return make_node(type, node, {
                                expression: save(),
                                property: key
                            });