46 lines
2.5 KiB
JavaScript
46 lines
2.5 KiB
JavaScript
|
// Copyright 2013 the V8 project authors. All rights reserved.
|
||
|
|
// Redistribution and use in source and binary forms, with or without
|
||
|
|
// modification, are permitted provided that the following conditions are
|
||
|
|
// met:
|
||
|
|
//
|
||
|
|
// * Redistributions of source code must retain the above copyright
|
||
|
|
// notice, this list of conditions and the following disclaimer.
|
||
|
|
// * Redistributions in binary form must reproduce the above
|
||
|
|
// copyright notice, this list of conditions and the following
|
||
|
|
// disclaimer in the documentation and/or other materials provided
|
||
|
|
// with the distribution.
|
||
|
|
// * Neither the name of Google Inc. nor the names of its
|
||
|
|
// contributors may be used to endorse or promote products derived
|
||
|
|
// from this software without specific prior written permission.
|
||
|
|
//
|
||
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||
|
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
|
||
|
|
// Check that the __proto__ accessor is properly poisoned when extracted
|
||
|
|
// from Object.prototype using the property descriptor.
|
||
|
|
var desc = Object.getOwnPropertyDescriptor(Object.prototype, "__proto__");
|
||
|
|
assertEquals("function", typeof desc.get);
|
||
|
|
assertEquals("function", typeof desc.set);
|
||
|
|
assertDoesNotThrow("desc.get.call({})");
|
||
|
|
assertThrows("desc.set.call({})", TypeError);
|
||
|
|
|
||
|
|
// Check that any redefinition of the __proto__ accessor causes poising
|
||
|
|
// to cease and the accessor to be extracted normally.
|
||
|
|
Object.defineProperty(Object.prototype, "__proto__", { get:function(){} });
|
||
|
|
desc = Object.getOwnPropertyDescriptor(Object.prototype, "__proto__");
|
||
|
|
assertDoesNotThrow("desc.get.call({})");
|
||
|
|
assertThrows("desc.set.call({})", TypeError);
|
||
|
|
Object.defineProperty(Object.prototype, "__proto__", { set:function(x){} });
|
||
|
|
desc = Object.getOwnPropertyDescriptor(Object.prototype, "__proto__");
|
||
|
|
assertDoesNotThrow("desc.get.call({})");
|
||
|
|
assertDoesNotThrow("desc.set.call({})");
|