1// Copyright 2009 the V8 project authors. All rights reserved. 2// Redistribution and use in source and binary forms, with or without 3// modification, are permitted provided that the following conditions are 4// met: 5// 6// * Redistributions of source code must retain the above copyright 7// notice, this list of conditions and the following disclaimer. 8// * Redistributions in binary form must reproduce the above 9// copyright notice, this list of conditions and the following 10// disclaimer in the documentation and/or other materials provided 11// with the distribution. 12// * Neither the name of Google Inc. nor the names of its 13// contributors may be used to endorse or promote products derived 14// from this software without specific prior written permission. 15// 16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28// Tests global loads from eval. 29 30var x = 27; 31 32function test() { 33 function g() { 34 assertEquals(27, eval('x')); 35 function h() { 36 // Shadow with local variable. 37 var x = 22; 38 assertEquals(22, eval('x')); 39 function i(x) { 40 // Shadow with parameter. 41 assertEquals(44, eval('x')); 42 function j() { 43 assertEquals(x, eval('x')); 44 // Shadow with function name. 45 function x() { 46 assertEquals(x, eval('x')); 47 } 48 x(); 49 } 50 j(); 51 } 52 i(44); 53 } 54 h(); 55 } 56 g(); 57} 58 59test(); 60 61// Test loading of globals from deeply nested eval. This code is a 62// bit complicated, but the complication is needed to check that the 63// code that loads the global variable accounts for the fact that the 64// global variable becomes shadowed by an eval-introduced variable. 65var result = 0; 66function testDeep(source, load, test) { 67 eval(source); 68 function f() { 69 var y = 23; 70 function g() { 71 var z = 25; 72 function h() { 73 eval(load); 74 eval(test); 75 } 76 h(); 77 } 78 g(); 79 } 80 f(); 81} 82testDeep('1', 'result = x', 'assertEquals(27, result)'); 83// Because of the eval-cache, the 'result = x' code gets reused. This 84// time in a context where the 'x' variable has been shadowed. 85testDeep('var x = 1', 'result = x', 'assertEquals(1, result)'); 86