process non-inherited properties only

2017-05-21 23:43:27 +08:00 · 2017-05-21 23:43:27 +08:00 · 307680f14b
commit 307680f14b
parent 45ac500ba0
1 changed files with 1 additions and 1 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@ -89,7 +89,7 @@ function Compressor(options, false_by_default) {
    }, true);
    var global_defs = this.options["global_defs"];
    if (typeof global_defs == "object") for (var key in global_defs) {
-        if (/^@/.test(key)) {
+        if (/^@/.test(key) && HOP(global_defs, key)) {
            var ast = parse(global_defs[key]);
            if (ast.body.length == 1 && ast.body[0] instanceof AST_SimpleStatement) {
                global_defs[key.slice(1)] = ast.body[0].body;