From 1bc0df1569c08618cf9c14e6e7a22dc89f25eb86 Mon Sep 17 00:00:00 2001
From: "Alex Lam S.L" <alexlamsl@gmail.com>
Date: Sun, 26 Jul 2020 02:27:34 +0100
Subject: fix corner case in `hoist_props` (#4024)

fixes #4023
---
 test/compress/hoist_props.js | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'test/compress')

diff --git a/test/compress/hoist_props.js b/test/compress/hoist_props.js
index 692dc676..09137cc9 100644
--- a/test/compress/hoist_props.js
+++ b/test/compress/hoist_props.js
@@ -1016,3 +1016,28 @@ issue_3945_2: {
     }
     expect_stdout: "undefined"
 }
+
+issue_4023: {
+    options = {
+        comparisons: true,
+        hoist_props: true,
+        inline: true,
+        reduce_vars: true,
+        toplevel: true,
+        typeofs: true,
+        unused: true,
+    }
+    input: {
+        function f() {
+            var a = function() {
+                return { p: 0 };
+            }();
+            return console.log("undefined" != typeof a);
+        }
+        f();
+    }
+    expect: {
+        console.log(void 0 !== {});
+    }
+    expect_stdout: "true"
+}
-- 
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