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/* -*- 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 */
#include "mozilla/Utf8.h" // mozilla::Utf8Unit
#include "js/CompilationAndEvaluation.h" // JS::Evaluate
#include "js/GlobalObject.h" // JS_NewGlobalObject
#include "js/PropertyAndElement.h" // JS_GetProperty
#include "js/SourceText.h" // JS::Source{Ownership,Text}
#include "jsapi-tests/tests.h"
#include "util/Text.h"
static bool GlobalResolve(JSContext* cx, JS::HandleObject obj, JS::HandleId id,
bool* resolvedp) {
return JS_ResolveStandardClass(cx, obj, id, resolvedp);
BEGIN_TEST(testRedefineGlobalEval) {
static const JSClassOps clsOps = {
nullptr, // addProperty
nullptr, // delProperty
nullptr, // enumerate
JS_NewEnumerateStandardClasses, // newEnumerate
GlobalResolve, // resolve
nullptr, // mayResolve
nullptr, // finalize
nullptr, // call
nullptr, // construct
JS_GlobalObjectTraceHook, // trace
static const JSClass cls = {"global", JSCLASS_GLOBAL_FLAGS, &clsOps};
/* Create the global object. */
JS::RealmOptions options;
JS::Rooted<JSObject*> g(
JS_NewGlobalObject(cx, &cls, nullptr, JS::FireOnNewGlobalHook, options));
if (!g) {
return false;
JSAutoRealm ar(cx, g);
JS::Rooted<JS::Value> v(cx);
CHECK(JS_GetProperty(cx, g, "Object", &v));
static const char data[] =
"Object.defineProperty(this, 'eval', { configurable: false });";
JS::CompileOptions opts(cx);
JS::SourceText<mozilla::Utf8Unit> srcBuf;
CHECK(srcBuf.init(cx, data, js_strlen(data), JS::SourceOwnership::Borrowed));
CHECK(JS::Evaluate(cx, opts.setFileAndLine(__FILE__, __LINE__), srcBuf, &v));
return true;