The Tor Browser: js/src/jsapi-tests/testFreshGlobalEvalRedefinition.cpp@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-

     2  * vim: set ts=8 sts=4 et sw=4 tw=99:

     3  */

     4 /* This Source Code Form is subject to the terms of the Mozilla Public

     5  * License, v. 2.0. If a copy of the MPL was not distributed with this

     6  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     8 #include "jsapi-tests/tests.h"

    10 static bool

    11 GlobalEnumerate(JSContext *cx, JS::Handle<JSObject*> obj)

    12 {

    13     return JS_EnumerateStandardClasses(cx, obj);

    14 }

    16 static bool

    17 GlobalResolve(JSContext *cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id)

    18 {

    19     bool resolved = false;

    20     return JS_ResolveStandardClass(cx, obj, id, &resolved);

    21 }

    23 BEGIN_TEST(testRedefineGlobalEval)

    24 {

    25     static const JSClass cls = {

    26         "global", JSCLASS_GLOBAL_FLAGS,

    27         JS_PropertyStub, JS_DeletePropertyStub, JS_PropertyStub, JS_StrictPropertyStub,

    28         GlobalEnumerate, GlobalResolve, JS_ConvertStub,

    29         nullptr, nullptr, nullptr, nullptr,

    30         JS_GlobalObjectTraceHook

    31     };

    33     /* Create the global object. */

    34     JS::CompartmentOptions options;

    35     options.setVersion(JSVERSION_LATEST);

    36     JS::Rooted<JSObject*> g(cx, JS_NewGlobalObject(cx, &cls, nullptr, JS::FireOnNewGlobalHook, options));

    37     if (!g)

    38         return false;

    40     JSAutoCompartment ac(cx, g);

    41     JS::Rooted<JS::Value> v(cx);

    42     CHECK(JS_GetProperty(cx, g, "Object", &v));

    44     static const char data[] = "Object.defineProperty(this, 'eval', { configurable: false });";

    45     CHECK(JS_EvaluateScript(cx, g, data, mozilla::ArrayLength(data) - 1, __FILE__, __LINE__, &v));

    47     return true;

    48 }

    49 END_TEST(testRedefineGlobalEval)

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