1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/xdr/classes.js b/js/src/jit-test/tests/xdr/classes.js
new file mode 100644
index 0000000000..3b83e41a48
--- /dev/null
+++ b/js/src/jit-test/tests/xdr/classes.js
@@ -0,0 +1,36 @@
+load(libdir + 'bytecode-cache.js');
+
+// Prevent relazification triggered by some zeal modes. Relazification can cause
+// test failures because lazy functions are XDR'd differently.
+gczeal(0);
+
+var test = "new class extends class { } { constructor() { super(); } }()";
+evalWithCache(test, { assertEqBytecode : true });
+
+var test = "new class { method() { super.toString(); } }().method()";
+evalWithCache(test, { assertEqBytecode : true });
+
+// Test class constructor in lazy function
+var test = `
+    function f(delazify) {
+        function inner1() {
+            class Y {
+                constructor() {}
+            }
+        }
+
+        function inner2() {
+            class Y {
+                constructor() {}
+                field1 = "";
+            }
+        }
+
+        if (delazify) {
+            inner1();
+            inner2();
+        }
+    }
+    f(generation > 0);
+`;
+evalWithCache(test, {});