2fb894fa58
This also fixes issues with - kMaxUint32 being a valid length but not index cornercases - exotic integer objects masking "exotic indexes" even though its in the prototype chain - concating of holey sloppy arguments BUG=v8:4137 LOG=n Review URL: https://codereview.chromium.org/1159433003 Cr-Commit-Position: refs/heads/master@{#28754}
106 lines
3.7 KiB
JavaScript
106 lines
3.7 KiB
JavaScript
// Copyright 2008 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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function check_enumeration_order(obj) {
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var value = 0;
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for (var name in obj) assertTrue(value < obj[name]);
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value = obj[name];
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}
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function make_object(size) {
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var a = new Object();
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for (var i = 0; i < size; i++) a["a_" + i] = i + 1;
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check_enumeration_order(a);
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for (var i = 0; i < size; i +=3) delete a["a_" + i];
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check_enumeration_order(a);
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}
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// Validate the enumeration order for object up to 100 named properties.
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for (var j = 1; j< 100; j++) make_object(j);
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function make_literal_object(size) {
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var code = "{ ";
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for (var i = 0; i < size-1; i++) code += " a_" + i + " : " + (i + 1) + ", ";
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code += "a_" + (size - 1) + " : " + size;
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code += " }";
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eval("var a = " + code);
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check_enumeration_order(a);
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}
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// Validate the enumeration order for object literals up to 100 named
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// properties.
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for (var j = 1; j< 100; j++) make_literal_object(j);
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// We enumerate indexed properties in numerical order followed by
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// named properties in insertion order, followed by indexed properties
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// of the prototype object in numerical order, followed by named
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// properties of the prototype object in insertion order, and so on.
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//
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// This enumeration order is not required by the specification, so
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// this just documents our choice.
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var proto2 = {};
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proto2[140000] = 0;
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proto2.a = 0;
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proto2[2] = 0;
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proto2[3] = 0; // also on the 'proto1' object
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proto2.b = 0;
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proto2[4294967294] = 0;
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proto2.c = 0;
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proto2[4294967295] = 0;
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var proto1 = {};
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proto1[5] = 0;
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proto1.d = 0;
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proto1[3] = 0;
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proto1.e = 0;
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proto1.f = 0; // also on the 'o' object
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var o = {};
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o[-23] = 0;
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o[300000000000] = 0;
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o[23] = 0;
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o.f = 0;
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o.g = 0;
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o[-4] = 0;
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o[42] = 0;
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o.__proto__ = proto1;
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proto1.__proto__ = proto2;
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var expected = ['23', '42', // indexed from 'o'
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'-23', '300000000000', 'f', 'g', '-4', // named from 'o'
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'3', '5', // indexed from 'proto1'
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'd', 'e', // named from 'proto1'
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'2', '140000', '4294967294', // indexed from 'proto2'
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'a', 'b', 'c', '4294967295']; // named from 'proto2'
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var actual = [];
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for (var p in o) actual.push(p);
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assertArrayEquals(expected, actual);
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