From 9a9543013c9d56cfc9593893fb9bfdff2aaa0307 Mon Sep 17 00:00:00 2001
From: "Alex Lam S.L" <alexlamsl@gmail.com>
Date: Tue, 16 Mar 2021 12:58:51 +0000
Subject: fix corner case in `functions` (#4789)

fixes #4788
---
 test/compress/functions.js | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

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

diff --git a/test/compress/functions.js b/test/compress/functions.js
index 68ff709b..e43efcea 100644
--- a/test/compress/functions.js
+++ b/test/compress/functions.js
@@ -5912,3 +5912,40 @@ issue_4753_2: {
     }
     expect_stdout: "PASS"
 }
+
+issue_4788: {
+    options = {
+        evaluate: true,
+        functions: true,
+        keep_fnames: true,
+        reduce_vars: true,
+        toplevel: true,
+        unused: true,
+    }
+    input: {
+        function f() {
+            var a = function g() {
+                if (0) {
+                    var g = 42;
+                    f();
+                }
+                g || console.log("PASS");
+            };
+            a(a);
+        }
+        f();
+    }
+    expect: {
+        (function f() {
+            function a() {
+                if (0) {
+                    var g = 42;
+                    f();
+                }
+                g || console.log("PASS");
+            }
+            a();
+        })();
+    }
+    expect_stdout: "PASS"
+}
-- 
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