Add m-esr52 at 52.6.0

1 files changed, 44 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/debug/Object-proxy.js b/js/src/jit-test/tests/debug/Object-proxy.js
new file mode 100644
index 000000000..b8296fe6d
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Object-proxy.js
@@ -0,0 +1,44 @@
+// Debugger.Object.prototype.isProxy recognizes (scripted) proxies.
+// Debugger.Object.prototype.proxyTarget exposes the [[Proxytarget]] of a proxy.
+// Debugger.Object.prototype.proxyHandler exposes the [[ProxyHandler]] of a proxy.
+
+var g = newGlobal();
+var dbg = new Debugger;
+var gDO = dbg.addDebuggee(g);
+
+g.eval('var target = [1,2,3];');
+g.eval('var handler = {has: ()=>false};');
+g.eval('var proxy = new Proxy(target, handler);');
+g.eval('var proxyProxy = new Proxy(proxy, proxy);');
+g.eval('var revoker = Proxy.revocable(target, handler);');
+g.eval('var revocable = revoker.proxy;');
+
+var target = gDO.getOwnPropertyDescriptor('target').value;
+var handler = gDO.getOwnPropertyDescriptor('handler').value;
+var proxy = gDO.getOwnPropertyDescriptor('proxy').value;
+var proxyProxy = gDO.getOwnPropertyDescriptor('proxyProxy').value;
+var revocable = gDO.getOwnPropertyDescriptor('revocable').value;
+
+assertEq(target.isProxy, false);
+assertEq(target.proxyTarget, undefined);
+assertEq(target.proxyHandler, undefined);
+
+assertEq(handler.isProxy, false);
+assertEq(handler.proxyTarget, undefined);
+assertEq(handler.proxyHandler, undefined);
+
+assertEq(proxy.isProxy, true);
+assertEq(proxy.proxyTarget, target);
+assertEq(proxy.proxyHandler, handler);
+
+assertEq(proxyProxy.isProxy, true);
+assertEq(proxyProxy.proxyTarget, proxy);
+assertEq(proxyProxy.proxyHandler, proxy);
+
+assertEq(revocable.isProxy, true);
+assertEq(revocable.proxyTarget, target);
+assertEq(revocable.proxyHandler, handler);
+g.eval('revoker.revoke();');
+assertEq(revocable.isProxy, true);
+assertEq(revocable.proxyTarget, null);
+assertEq(revocable.proxyHandler, null);