|  | // 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. | 
|  |  | 
|  | // Tests global loads from nested eval. | 
|  |  | 
|  | var x = 42; | 
|  |  | 
|  | // Load the global. | 
|  | function test(source) { | 
|  | eval('eval(' + source +')'); | 
|  | } | 
|  | test('assertEquals(42, x)'); | 
|  |  | 
|  | // Shadow variable with a with statement. | 
|  | function testWith(source) { | 
|  | with ({ x: 1 }) { | 
|  | eval('eval(' + source +')'); | 
|  | } | 
|  | } | 
|  | testWith('assertEquals(1, x)'); | 
|  |  | 
|  | // Shadow variable with an eval-introduced variable. | 
|  | function testEval(source) { | 
|  | eval('var x = 1'); | 
|  | function f() { | 
|  | eval('eval('+ source + ')'); | 
|  | } | 
|  | f(); | 
|  | } | 
|  | testEval('assertEquals(1, x)'); | 
|  |  | 
|  | // Eval that does not shadow. | 
|  | function testEvalDontShadow(source) { | 
|  | eval('1'); | 
|  | eval('eval(' + source +')'); | 
|  | } | 
|  | testEvalDontShadow('assertEquals(42, x)'); |