|  | // Copyright 2009 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. | 
|  |  | 
|  | // See: http://code.google.com/p/v8/issues/detail?id=545 | 
|  | // and: http://code.google.com/p/chromium/issues/detail?id=28353 | 
|  |  | 
|  | // The "this" variable proxy was reused. If context annotations differ between | 
|  | // uses, this can cause a use in a value context to assume a test context. Since | 
|  | // it has no true/false labels set, it causes a null-pointer dereference and | 
|  | // segmentation fault. | 
|  |  | 
|  | // Code should not crash: | 
|  |  | 
|  | // Original bug report by Robert Swiecki (wrapped to not throw): | 
|  | try { | 
|  | new IsPrimitive(load())?this.join():String('
').charCodeAt((!this>Math)); | 
|  | } catch (e) {} | 
|  |  | 
|  | // Shorter examples: | 
|  |  | 
|  | this + !this; | 
|  |  | 
|  | this + (this ? 1 : 2); |