fix corner case in unused (#4405)

fixes #4404
2020-12-18 15:45:41 +00:00
parent 9c0718b162
commit 2415a72e75
2 changed files with 31 additions and 1 deletions
--- a/test/compress/drop-unused.js
+++ b/test/compress/drop-unused.js
@@ -3112,3 +3112,25 @@ issue_4235: {
    }
    expect_stdout: "undefined"
 }
+
+issue_4404: {
+    options = {
+        pure_getters: "strict",
+        unused: true,
+    }
+    input: {
+        function f(a) {
+            arguments[0] = "PASS";
+            console.log(a);
+        }
+        f("FAIL");
+    }
+    expect: {
+        function f(a) {
+            arguments[0] = "PASS";
+            console.log(a);
+        }
+        f("FAIL");
+    }
+    expect_stdout: "PASS"
+}