fe23339bdd
We did not properly combine the property names from the parameter map and the arguments backing store. They could overwrite each other and be unsorted. Also fix an unrelated bug: deleting from a dictionary-mode arguments backing store could corrupt the parameter map. R=rossberg@chromium.org BUG=1531 TEST=mjsunit/regress/regress-1531.js Review URL: http://codereview.chromium.org/7278033 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8571 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
50 lines
2.2 KiB
JavaScript
50 lines
2.2 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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// Regression test for computing elements keys of arguments object. Should
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// not crash or assert.
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function test(x) {
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arguments[10] = 0;
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var arr = [];
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for (var p in arguments) arr.push(p);
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return arr;
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}
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assertEquals(["0", "10"], test(0));
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// Regression test for lookup after delete of a dictionary-mode arguments
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// backing store. Should not crash or assert.
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function test1(x, y, z) {
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// Put into dictionary mode.
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arguments.__defineGetter__("5", function () { return 0; });
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// Delete a property from the dictionary.
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delete arguments[5];
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// Look up a property in the dictionary.
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return arguments[2];
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}
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assertEquals(void 0, test1(0));
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