9c89aa6dd9
Fixes JS portion of DefineOwnProperty when there is an existing property and the new descriptor is generic. Makes code follow spec steps more closely. Fixes typo for check for unchanged enumerable in step 6. Adds regression tests. Fixes errors in object-define-property test Don't normalize the JSGlobalProxy. Gets webkit http/tests/security/xss-DENIED-defineProperty.html working. git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6561 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
44 lines
2.1 KiB
JavaScript
44 lines
2.1 KiB
JavaScript
// Copyright 2011 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Object.defineProperty with generic desc on existing property
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// should just update enumerable/configurable flags.
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var obj = { get p() { return 42; } };
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var desc = Object.getOwnPropertyDescriptor(obj, 'p');
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var getter = desc.get;
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Object.defineProperty(obj, 'p', {enumerable: false });
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assertEquals(obj.p, 42);
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desc = Object.getOwnPropertyDescriptor(obj, 'p');
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assertFalse(desc.enumerable);
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assertTrue(desc.configurable);
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assertEquals(desc.get, getter);
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assertEquals(desc.set, undefined);
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assertFalse(desc.hasOwnProperty('value'));
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assertFalse(desc.hasOwnProperty('writable'));
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