0ecd03ab4c
This fixes a corner-case where a frozen prototype with existing hidden properties might prevent setting hidden properties on another object. R=rossberg@chromium.org BUG=v8:2829 Review URL: https://codereview.chromium.org/22799021 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16276 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
54 lines
2.1 KiB
JavaScript
54 lines
2.1 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.
|
|
|
|
// Flags: --harmony-collections
|
|
|
|
(function test1() {
|
|
var wm1 = new WeakMap();
|
|
wm1.set(Object.prototype, 23);
|
|
assertTrue(wm1.has(Object.prototype));
|
|
Object.freeze(Object.prototype);
|
|
|
|
var wm2 = new WeakMap();
|
|
var o = {};
|
|
wm2.set(o, 42);
|
|
assertEquals(42, wm2.get(o));
|
|
})();
|
|
|
|
(function test2() {
|
|
var wm1 = new WeakMap();
|
|
var o1 = {};
|
|
wm1.set(o1, 23);
|
|
assertTrue(wm1.has(o1));
|
|
Object.freeze(o1);
|
|
|
|
var wm2 = new WeakMap();
|
|
var o2 = Object.create(o1);
|
|
wm2.set(o2, 42);
|
|
assertEquals(42, wm2.get(o2));
|
|
})();
|