1c950e04cc
Review URL: http://codereview.chromium.org/6883227 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7706 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
57 lines
2.3 KiB
JavaScript
57 lines
2.3 KiB
JavaScript
// Copyright 2011 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: --expose-gc
|
|
|
|
// Create array large enough to span several page regions.
|
|
var a = new Array(500);
|
|
|
|
// Fill it with values.
|
|
for (var i = 0; i < a.length; i++) a[i] = {idx:i};
|
|
|
|
// Force it into oldspace.
|
|
gc();
|
|
gc();
|
|
|
|
// Array should be in old space now. Store young object into array.
|
|
// Region will be marked.
|
|
a[0] = {idx:0};
|
|
|
|
// Delete elements a[2] .. a[201]. Internally we will use
|
|
// trimming of backing store. a[0] a[1] will be moved to
|
|
// memory location previously occupied by a[200] a[201].
|
|
a.splice(2, 200);
|
|
|
|
// Force gc and heap verification.
|
|
gc();
|
|
|
|
// Try accessing a[0].idx. It will segfault if write-barrier was accidentally
|
|
// omitted.
|
|
assertEquals(0, a[0].idx);
|
|
assertEquals(1, a[1].idx);
|
|
assertEquals(202, a[2].idx);
|