From 5f269cd57356fc4dbe7486dca22902d22695d499 Mon Sep 17 00:00:00 2001
From: "Alex Lam S.L" <alexlamsl@gmail.com>
Date: Thu, 24 Dec 2020 02:56:22 +0000
Subject: fix corner case in `collapse_vars` (#4445)

fixes #4444
---
 test/compress/default-values.js | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'test/compress/default-values.js')

diff --git a/test/compress/default-values.js b/test/compress/default-values.js
index 2e046444..64dad3cf 100644
--- a/test/compress/default-values.js
+++ b/test/compress/default-values.js
@@ -950,3 +950,27 @@ mangle_arrow_2_toplevel: {
     expect_stdout: "PASS"
     node_version: ">=6"
 }
+
+issue_4444: {
+    options = {
+        collapse_vars: true,
+    }
+    input: {
+        var a = "PASS";
+        console.log(function(b) {
+            b = a;
+            (function(c = b.p) {})();
+            return a;
+        }());
+    }
+    expect: {
+        var a = "PASS";
+        console.log(function(b) {
+            b = a;
+            (function(c = b.p) {})();
+            return a;
+        }());
+    }
+    expect_stdout: "PASS"
+    node_version: ">=6"
+}
-- 
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