enhance assignments & unused (#3428)

closes #3427
2019-05-29 01:21:08 +08:00
parent e4f5ba1d29
commit 482e1baea3
4 changed files with 123 additions and 24 deletions
--- a/test/compress/assignment.js
+++ b/test/compress/assignment.js
@@ -311,3 +311,19 @@ issue_3375: {
    }
    expect_stdout: "string"
 }
+
+issue_3427: {
+    options = {
+        assignments: true,
+        sequences: true,
+        side_effects: true,
+        unused: true,
+    }
+    input: {
+        (function() {
+            var a;
+            a || (a = {});
+        })();
+    }
+    expect: {}
+}