/* -*- 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 "jsfriendapi.h" #include "jsapi-tests/tests.h" #include "vm/EnvironmentObject.h" BEGIN_TEST(testForceLexicalInitialization) { // Attach an uninitialized lexical to a scope and ensure that it's // set to undefined js::RootedGlobalObject g(cx, cx->global()); JS::Rooted env( cx, js::LexicalEnvironmentObject::createGlobal(cx, g)); JS::RootedValue uninitialized(cx, JS::MagicValue(JS_UNINITIALIZED_LEXICAL)); js::RootedPropertyName name(cx, Atomize(cx, "foopi", 4)->asPropertyName()); JS::RootedId id(cx, NameToId(name)); unsigned attrs = JSPROP_ENUMERATE | JSPROP_PERMANENT; CHECK(NativeDefineDataProperty(cx, env, id, uninitialized, attrs)); // Verify that "foopi" is uninitialized const JS::Value v = env->getSlot(env->lookup(cx, id)->slot()); CHECK(v.isMagic(JS_UNINITIALIZED_LEXICAL)); ForceLexicalInitialization(cx, env); // Verify that "foopi" has been initialized to undefined const JS::Value v2 = env->getSlot(env->lookup(cx, id)->slot()); CHECK(v2.isUndefined()); return true; } END_TEST(testForceLexicalInitialization)