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 loading of properties across eval calls. 29 30 var x = 1; 31 function global_function() { return 'global'; } 32 const const_uninitialized; 33 const const_initialized = function() { return "const_global"; } 34 35 // Test loading across an eval call that does not shadow variables. 36 function testNoShadowing() { 37 var y = 2; 38 function local_function() { return 'local'; } 39 const local_const_uninitialized; 40 const local_const_initialized = function() { return "const_local"; } 41 function f() { 42 eval('1'); 43 assertEquals(1, x); 44 try { typeof(asdf); } catch(e) { assertUnreachable(); } 45 assertEquals(2, y); 46 assertEquals('global', global_function()); 47 assertEquals('local', local_function()); 48 var exception = false; 49 try { 50 const_uninitialized(); 51 } catch(e) { 52 exception = true; 53 } 54 assertTrue(exception); 55 assertEquals('const_global', const_initialized()); 56 exception = false; 57 try { 58 local_const_uninitialized(); 59 } catch(e) { 60 exception = true; 61 } 62 assertTrue(exception); 63 assertEquals('const_local', local_const_initialized()); 64 function g() { 65 assertEquals(1, x); 66 try { typeof(asdf); } catch(e) { assertUnreachable(); } 67 assertEquals(2, y); 68 assertEquals('global', global_function()); 69 assertEquals('local', local_function()); 70 var exception = false; 71 try { 72 const_uninitialized(); 73 } catch(e) { 74 exception = true; 75 } 76 assertTrue(exception); 77 assertEquals('const_global', const_initialized()); 78 exception = false; 79 try { 80 local_const_uninitialized(); 81 } catch(e) { 82 exception = true; 83 } 84 assertTrue(exception); 85 assertEquals('const_local', local_const_initialized()); 86 } 87 g(); 88 } 89 f(); 90 } 91 92 testNoShadowing(); 93 94 // Test loading across eval calls that do not shadow variables. 95 function testNoShadowing2() { 96 var y = 2; 97 function local_function() { return 'local'; } 98 eval('1'); 99 function f() { 100 eval('1'); 101 assertEquals(1, x); 102 assertEquals(2, y); 103 assertEquals('global', global_function()); 104 assertEquals('local', local_function()); 105 function g() { 106 assertEquals(1, x); 107 assertEquals(2, y); 108 assertEquals('global', global_function()); 109 assertEquals('local', local_function()); 110 } 111 g(); 112 } 113 f(); 114 } 115 116 testNoShadowing2(); 117 118 // Test loading across an eval call that shadows variables. 119 function testShadowing() { 120 var y = 2; 121 function local_function() { return 'local'; } 122 function f() { 123 eval('var x = 3; var y = 4;'); 124 assertEquals(3, x); 125 assertEquals(4, y); 126 eval('function local_function() { return "new_local"; }'); 127 eval('function global_function() { return "new_nonglobal"; }'); 128 assertEquals('new_nonglobal', global_function()); 129 assertEquals('new_local', local_function()); 130 function g() { 131 assertEquals(3, x); 132 assertEquals(4, y); 133 assertEquals('new_nonglobal', global_function()); 134 assertEquals('new_local', local_function()); 135 } 136 g(); 137 } 138 f(); 139 } 140 141 testShadowing(); 142