fix corner cases in aliasing of global variables (#4039)

fixes #4038
2020-08-06 09:39:50 +01:00
parent 30ef20a208
commit 9b05494ebc
4 changed files with 115 additions and 16 deletions
--- a/test/ufuzz/index.js
+++ b/test/ufuzz/index.js
@@ -1175,7 +1175,8 @@ function log(options) {
 }

 function sort_globals(code) {
-    return "var " + sandbox.run_code("throw Object.keys(this).sort();" + code).join(",") + ";" + code;
+    var globals = sandbox.run_code("throw Object.keys(this).sort();" + code);
+    return globals.length ? "var " + globals.join(",") + ";" + code : code;
 }

 function fuzzy_match(original, uglified) {