fix corner case in loops & unused (#4356)

fixes #4355
2020-12-10 07:45:39 +00:00
parent 046bbde9d4
commit a59593cac8
3 changed files with 79 additions and 22 deletions
--- a/test/compress/destructured.js
+++ b/test/compress/destructured.js
@@ -1777,3 +1777,32 @@ issue_4323: {
    expect_stdout: "function"
    node_version: ">=6"
 }
+
+issue_4355: {
+    options = {
+        loops: true,
+        unused: true,
+    }
+    input: {
+        var a;
+        (function({
+            [function() {
+                for (a in "foo");
+            }()]: b,
+        }) {
+            var a;
+        })(0);
+        console.log(a);
+    }
+    expect: {
+        var a;
+        (function({
+            [function() {
+                for (a in "foo");
+            }()]: b,
+        }) {})(0);
+        console.log(a);
+    }
+    expect_stdout: "2"
+    node_version: ">=6"
+}