/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
*/
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "js/PropertyAndElement.h" // JS_DefineProperty
#include "js/Proxy.h"
#include "jsapi-tests/tests.h"
class WindowProxyHandler :
public js::ForwardingProxyHandler {
public:
constexpr WindowProxyHandler() : js::ForwardingProxyHandler(&family) {}
static const char family;
virtual bool defineProperty(JSContext* cx, JS::HandleObject proxy,
JS::HandleId id,
JS::Handle<JS::PropertyDescriptor> desc,
JS::ObjectOpResult& result)
const override {
if (desc.hasConfigurable() && !desc.configurable()) {
result.failCantDefineWindowNonConfigurable();
return true;
}
return ForwardingProxyHandler::defineProperty(cx, proxy, id, desc, result);
}
};
const char WindowProxyHandler::family = 0;
static const JSClass windowProxy_class =
PROXY_CLASS_DEF(
"TestWindowProxy", JSCLASS_HAS_RESERVED_SLOTS(1));
static const WindowProxyHandler windowProxy_handler;
BEGIN_TEST(testWindowNonConfigurable) {
JS::RootedObject wrapped(cx, JS_NewObject(cx, nullptr));
CHECK(wrapped);
JS::RootedValue wrappedVal(cx, JS::ObjectValue(*wrapped));
js::ProxyOptions options;
options.setClass(&windowProxy_class);
JS::RootedObject obj(cx, NewProxyObject(cx, &windowProxy_handler, wrappedVal,
nullptr, options));
CHECK(obj);
CHECK(JS_DefineProperty(cx, global,
"windowProxy", obj, 0));
JS::RootedValue v(cx);
EVAL(
"Object.defineProperty(windowProxy, 'bar', {value: 1, configurable: "
"false})",
&v);
CHECK(v.isNull());
// This is the important bit!
EVAL(
"Object.defineProperty(windowProxy, 'bar', {value: 1, configurable: "
"true})",
&v);
CHECK(&v.toObject() == obj);
EVAL(
"Reflect.defineProperty(windowProxy, 'foo', {value: 1, configurable: "
"false})",
&v);
CHECK(v.isFalse());
EVAL(
"Reflect.defineProperty(windowProxy, 'foo', {value: 1, configurable: "
"true})",
&v);
CHECK(v.isTrue());
return true;
}
END_TEST(testWindowNonConfigurable)
