JezK
Edit File: regress-create-exception.js
// Copyright 2010 the V8 project authors. All rights reserved. // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following // disclaimer in the documentation and/or other materials provided // with the distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // Flags: --max-new-space-size=256 "use strict"; // Check for GC bug constructing exceptions. var v = [1, 2, 3, 4] Object.preventExtensions(v); function foo() { var re = /2147483647/; // Equal to 0x7fffffff. for (var i = 0; i < 10000; i++) { var ok = false; try { var j = 1; // Allocate some heap numbers in order to randomize the behaviour of the // garbage collector. 93 is chosen to be a prime number to avoid the // allocation settling into a too neat pattern. for (var j = 0; j < i % 93; j++) { j *= 1.123567; // An arbitrary floating point number. } v[0x7fffffff] = 0; // Trigger exception. assertTrue(false); return j; // Make sure that future optimizations don't eliminate j. } catch(e) { ok = true; assertTrue(re.test(e), 'e: ' + e); } assertTrue(ok); } } foo();