v8/test/mjsunit/regress/regress-1240.js
ricow@chromium.org e8ff324583 Follow Safari on not throwing when __defineGetter__ fails.
In addition, this fixes defineOwnProperty to actually not throw when
the should_throw flag is false (we had no usage of this priorly).

Review URL: http://codereview.chromium.org/6695018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7176 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2011-03-15 14:19:18 +00:00

40 lines
2.1 KiB
JavaScript

// Copyright 2011 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.
// This regression tests that we are not allowed to overwrite an existing
// non-configurable getter with a new getter. In addition, we should not
// be able to change the configurable flag from false to true.
var a = {};
Object.defineProperty(a, 'b',
{ get: function () { return 42; }, configurable: false });
// Do not allow us to redefine b on a.
a.__defineGetter__('b', function _b(){ return 'foo'; });
assertEquals(42, a.b);
var desc = Object.getOwnPropertyDescriptor(a, 'b');
assertFalse(desc.configurable);