From 2cbbf5c375a0fae88345c3ed3bc2829b4b1ac250 Mon Sep 17 00:00:00 2001
From: "Alex Lam S.L" <alexlamsl@gmail.com>
Date: Sun, 6 Dec 2020 21:22:40 +0000
Subject: support async function (#4333)

---
 test/mocha/async.js | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 test/mocha/async.js

(limited to 'test/mocha/async.js')

diff --git a/test/mocha/async.js b/test/mocha/async.js
new file mode 100644
index 00000000..dc1aa2f4
--- /dev/null
+++ b/test/mocha/async.js
@@ -0,0 +1,23 @@
+var assert = require("assert");
+var UglifyJS = require("../node");
+
+describe("async", function() {
+    it("Should reject `await` as symbol name within async functions only", function() {
+        [
+            "function await() {}",
+            "function(await) {}",
+            "function() { await; }",
+            "function() { await:{} }",
+            "function() { var await; }",
+            "function() { function await() {} }",
+            "function() { try {} catch (await) {} }",
+        ].forEach(function(code) {
+            UglifyJS.parse("(" + code + ")();");
+            assert.throws(function() {
+                UglifyJS.parse("(async " + code + ")();");
+            }, function(e) {
+                return e instanceof UglifyJS.JS_Parse_Error;
+            }, code);
+        });
+    });
+});
-- 
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