v8/test/mjsunit/regress/regress-create-exception.js
2010-10-15 07:54:20 +00:00

59 lines
2.4 KiB
JavaScript

// 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=128
// 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 < 7000; 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));
}
assertTrue(ok);
}
}
foo();