From d47547dc71a7e0ba717348995a02a0703ef8f149 Mon Sep 17 00:00:00 2001
From: "Alex Lam S.L" <alexlamsl@gmail.com>
Date: Fri, 27 Jul 2018 19:34:44 +0800
Subject: fix corner case in `join_vars` (#3224)

---
 test/compress/properties.js | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

(limited to 'test/compress')

diff --git a/test/compress/properties.js b/test/compress/properties.js
index d36ae074..3a78d626 100644
--- a/test/compress/properties.js
+++ b/test/compress/properties.js
@@ -1832,3 +1832,33 @@ issue_3188_3: {
     }
     expect_stdout: "PASS"
 }
+
+join_expr: {
+    options = {
+        evaluate: true,
+        join_vars: true,
+    }
+    input: {
+        var c = "FAIL";
+        (function() {
+            var a = 0;
+            switch ((a = {}) && (a.b = 0)) {
+              case 0:
+                c = "PASS";
+            }
+        })();
+        console.log(c);
+    }
+    expect: {
+        var c = "FAIL";
+        (function() {
+            var a = 0;
+            switch (a = { b: 0 }, a.b) {
+              case 0:
+                c = "PASS";
+            }
+        })();
+        console.log(c);
+    }
+    expect_stdout: "PASS"
+}
-- 
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