1 files changed, 17 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/proxy/preserve-iscallable-isconstructor.js b/js/src/jit-test/tests/proxy/preserve-iscallable-isconstructor.js
new file mode 100644
index 0000000000..f1c84e2065
--- /dev/null
+++ b/js/src/jit-test/tests/proxy/preserve-iscallable-isconstructor.js
@@ -0,0 +1,17 @@
+load(libdir + "asserts.js");
+
+var global = newGlobal({newCompartment: true})
+var fun = global.eval("(function() {})")
+var p = new Proxy(fun, {})
+
+// Nuking should preserve IsCallable and IsConstructor.
+assertEq(isConstructor(p), true);
+assertEq(typeof p, "function");
+nukeCCW(fun);
+assertEq(isConstructor(p), true);
+assertEq(typeof p, "function");
+
+// But actually calling and constructing should throw, because it's been
+// nuked.
+assertThrowsInstanceOf(() => { p(); }, TypeError);
+assertThrowsInstanceOf(() => { new p(); }, TypeError);