From 87cf7152135281a4b1a1163b26ea918a0a264f0b Mon Sep 17 00:00:00 2001
From: "Alex Lam S.L" <alexlamsl@gmail.com>
Date: Sat, 19 Dec 2020 21:47:01 +0000
Subject: fix corner case with destructuring `catch` (#4421)

fixes #4420
---
 test/compress/destructured.js | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

(limited to 'test/compress/destructured.js')

diff --git a/test/compress/destructured.js b/test/compress/destructured.js
index 4c36e451..06c9fddb 100644
--- a/test/compress/destructured.js
+++ b/test/compress/destructured.js
@@ -1968,3 +1968,36 @@ issue_4399: {
     expect_stdout: "PASS"
     node_version: ">=6"
 }
+
+issue_4420: {
+    options = {
+        unused: true,
+    }
+    input: {
+        console.log(function() {
+            var a = 1;
+            try {
+                throw [ "FAIL", "PASS" ];
+            } catch ({
+                [a]: b,
+            }) {
+                let a = 0;
+                return b;
+            }
+        }());
+    }
+    expect: {
+        console.log(function() {
+            var a = 1;
+            try {
+                throw [ "FAIL", "PASS" ];
+            } catch ({
+                [a]: b,
+            }) {
+                return b;
+            }
+        }());
+    }
+    expect_stdout: "PASS"
+    node_version: ">=8"
+}
-- 
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