fix corner case in reduce_vars (#4219)

fixes #4218
2020-10-14 00:58:04 +01:00
parent 9f8106e1d8
commit 7f35d9cee0
2 changed files with 25 additions and 0 deletions
--- a/test/compress/const.js
+++ b/test/compress/const.js
@@ -931,6 +931,30 @@ issue_4207: {
    expect_stdout: "0"
 }

+issue_4218: {
+    options = {
+        reduce_funcs: true,
+        reduce_vars: true,
+        toplevel: true,
+        unused: true,
+    }
+    input: {
+        {
+            const a = function() {};
+            var b = 0 * a;
+        }
+        console.log(typeof a, b);
+    }
+    expect: {
+        {
+            const a = function() {};
+            var b = 0 * a;
+        }
+        console.log(typeof a, b);
+    }
+    expect_stdout: true
+}
+
 issue_4210: {
    options = {
        reduce_vars: true,