1// Copyright 2008 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// Regression test cases for issue 1178598. 29 30// Make sure const-initialization doesn't conflict 31// with heap-allocated locals for catch variables. 32var value = (function(){ 33 try { } catch(e) { 34 // Force the 'e' variable to be heap-allocated 35 // by capturing it in a function closure. 36 (function() { e; }); 37 } 38 // Make sure the two definitions of 'e' do 39 // not conflict in any way. 40 eval("const e=1"); 41 return e; 42})(); 43 44assertEquals(1, value); 45 46 47 48// Make sure that catch variables can be accessed using eval. 49var value = (function() { 50 var result; 51 try { 52 throw 42; 53 } catch (e) { 54 result = eval("e"); 55 } 56 return result; 57})(); 58 59assertEquals(42, value); 60 61 62 63// Make sure that heap-allocated locals for catch variables aren't 64// visible outside the catch scope and that they are visible from 65// within. 66var value = (function() { 67 var result; 68 try { 69 throw 87; 70 } catch(e) { 71 // Force the 'e' variable to be heap-allocated 72 // by capturing it in a function closure. 73 (function() { e; }); 74 result = eval("e"); 75 } 76 77 // Expect accessing 'e' to yield an exception because 78 // it is not defined in the current scope. 79 try { 80 eval("e"); 81 assertTrue(false); // should throw exception 82 } catch(exception) { 83 assertTrue(exception instanceof ReferenceError); 84 return result; 85 } 86})(); 87 88assertEquals(87, value); 89 90 91