59 lines
2.8 KiB
JavaScript
59 lines
2.8 KiB
JavaScript
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// Copyright 2012 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 checking that the sequence of element access in built-in
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// array functions is specification conform (i.e. [[HasProperty]] might return
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// bogus result after [[Get]] has been called).
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function CheckSequence(builtin, callback) {
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var array = [1,2,3];
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var callback_count = 0;
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var callback_wrapper = function() {
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callback_count++;
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return callback()
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}
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// Define getter that will delete itself upon first invocation.
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Object.defineProperty(array, '1', {
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get: function () { delete array[1]; },
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configurable: true
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});
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assertTrue(array.hasOwnProperty('1'));
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builtin.apply(array, [callback_wrapper, 'argument']);
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assertFalse(array.hasOwnProperty('1'));
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assertEquals(3, callback_count);
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}
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CheckSequence(Array.prototype.every, function() { return true; });
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CheckSequence(Array.prototype.filter, function() { return true; });
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CheckSequence(Array.prototype.forEach, function() { return 0; });
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CheckSequence(Array.prototype.map, function() { return 0; });
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CheckSequence(Array.prototype.reduce, function() { return 0; });
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CheckSequence(Array.prototype.reduceRight, function() { return 0; });
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CheckSequence(Array.prototype.some, function() { return false; });
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