fix corner case in comparisons (#4680)

fixes #4679
2021-02-24 13:38:44 +00:00
parent c885660347
commit a5a958beda
2 changed files with 21 additions and 0 deletions
--- a/test/compress/nullish.js
+++ b/test/compress/nullish.js
@@ -109,3 +109,22 @@ conditional_assignment_4: {
    expect_stdout: "PASS"
    node_version: ">=14"
 }
+
+issue_4679: {
+    options = {
+        comparisons: true,
+        ie8: true,
+    }
+    input: {
+        var a;
+        if (void 0 === (undefined ?? a))
+            console.log("PASS");
+    }
+    expect: {
+        var a;
+        if (void 0 === (undefined ?? a))
+            console.log("PASS");
+    }
+    expect_stdout: "PASS"
+    node_version: ">=14"
+}