fix corner cases in ie8 & side_effects (#4731)

fixes #4729 fixes #4730
2021-03-03 19:30:07 +00:00
parent 2a49760032
commit 20be5209c0
3 changed files with 67 additions and 6 deletions
--- a/test/compress/ie8.js
+++ b/test/compress/ie8.js
@@ -2919,3 +2919,28 @@ issue_4568: {
    }
    expect_stdout: "undefined 1"
 }
+
+issue_4729: {
+    options = {
+        ie8: true,
+        toplevel: true,
+        unused: true,
+    }
+    input: {
+        try {
+            f;
+        } catch(e) {
+            var a = a && a[function f() {}];
+            console.log("PASS");
+        }
+    }
+    expect: {
+        try {
+            f;
+        } catch(e) {
+            (function f() {});
+            console.log("PASS");
+        }
+    }
+    expect_stdout: "PASS"
+}