5d44bf0263
This patch moves ES2015 ToLength semantics on array operations, etc to from staging to shipping. R=adamk BUG=v8:3087 LOG=Y Review URL: https://codereview.chromium.org/1433473003 Cr-Commit-Position: refs/heads/master@{#31810}
135 lines
4.2 KiB
JavaScript
135 lines
4.2 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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var a = [0,1,2,3];
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assertEquals(0, a.length = 0);
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assertEquals('undefined', typeof a[0]);
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assertEquals('undefined', typeof a[1]);
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assertEquals('undefined', typeof a[2]);
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assertEquals('undefined', typeof a[3]);
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var a = [0,1,2,3];
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assertEquals(2, a.length = 2);
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assertEquals(0, a[0]);
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assertEquals(1, a[1]);
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assertEquals('undefined', typeof a[2]);
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assertEquals('undefined', typeof a[3]);
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var a = new Array();
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a[0] = 0;
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a[1000] = 1000;
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a[1000000] = 1000000;
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a[2000000] = 2000000;
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assertEquals(2000001, a.length);
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assertEquals(0, a.length = 0);
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assertEquals(0, a.length);
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assertEquals('undefined', typeof a[0]);
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assertEquals('undefined', typeof a[1000]);
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assertEquals('undefined', typeof a[1000000]);
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assertEquals('undefined', typeof a[2000000]);
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var a = new Array();
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a[0] = 0;
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a[1000] = 1000;
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a[1000000] = 1000000;
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a[2000000] = 2000000;
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assertEquals(2000001, a.length);
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assertEquals(2000, a.length = 2000);
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assertEquals(2000, a.length);
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assertEquals(0, a[0]);
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assertEquals(1000, a[1000]);
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assertEquals('undefined', typeof a[1000000]);
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assertEquals('undefined', typeof a[2000000]);
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var a = new Array();
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a[Math.pow(2,31)-1] = 0;
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a[Math.pow(2,30)-1] = 0;
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assertEquals(Math.pow(2,31), a.length);
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var a = new Array();
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a[0] = 0;
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a[1000] = 1000;
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a[Math.pow(2,30)-1] = Math.pow(2,30)-1;
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a[Math.pow(2,31)-1] = Math.pow(2,31)-1;
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a[Math.pow(2,32)-2] = Math.pow(2,32)-2;
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assertEquals(Math.pow(2,30)-1, a[Math.pow(2,30)-1]);
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assertEquals(Math.pow(2,31)-1, a[Math.pow(2,31)-1]);
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assertEquals(Math.pow(2,32)-2, a[Math.pow(2,32)-2]);
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assertEquals(Math.pow(2,32)-1, a.length);
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assertEquals(Math.pow(2,30) + 1, a.length = Math.pow(2,30)+1); // not a smi!
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assertEquals(Math.pow(2,30)+1, a.length);
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assertEquals(0, a[0]);
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assertEquals(1000, a[1000]);
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assertEquals(Math.pow(2,30)-1, a[Math.pow(2,30)-1]);
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assertEquals('undefined', typeof a[Math.pow(2,31)-1]);
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assertEquals('undefined', typeof a[Math.pow(2,32)-2], "top");
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var a = new Array();
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assertEquals(Object(12), a.length = new Number(12));
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assertEquals(12, a.length);
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Number.prototype.valueOf = function() { return 10; }
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var n = new Number(100);
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assertEquals(n, a.length = n);
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assertEquals(10, a.length);
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n.valueOf = function() { return 20; }
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assertEquals(n, a.length = n);
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assertEquals(20, a.length);
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var o = { length: -23 };
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Array.prototype.pop.apply(o);
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assertEquals(0, o.length);
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// Check case of compiled stubs.
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var a = [];
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for (var i = 0; i < 7; i++) {
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assertEquals(3, a.length = 3);
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var t = 239;
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t = a.length = 7;
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assertEquals(7, t);
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}
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(function () {
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"use strict";
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var frozen_object = Object.freeze({__proto__:[]});
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assertThrows(function () { frozen_object.length = 10 });
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})();
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