1 // Copyright 2011 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 // Flags: --expose-debug-as debug --expose-natives-as=builtins 29 30 // Check that the ScopeIterator can properly recreate the scope at 31 // every point when stepping through functions. 32 33 var Debug = debug.Debug; 34 35 function listener(event, exec_state, event_data, data) { 36 if (event == Debug.DebugEvent.Break) { 37 // Access scope details. 38 var scope_count = exec_state.frame().scopeCount(); 39 for (var i = 0; i < scope_count; i++) { 40 var scope = exec_state.frame().scope(i); 41 // assertTrue(scope.isScope()); 42 scope.scopeType(); 43 scope.scopeObject(); 44 } 45 46 // Do steps until we reach the global scope again. 47 if (true) { 48 exec_state.prepareStep(Debug.StepAction.StepInMin, 1); 49 } 50 } 51 } 52 53 Debug.setListener(listener); 54 55 56 function test1() { 57 debugger; 58 with ({x:1}) { 59 x = 2; 60 } 61 } 62 test1(); 63 64 65 function test2() { 66 if (true) { 67 with ({}) { 68 debugger; 69 } 70 } else { 71 with ({}) { 72 return 10; 73 } 74 } 75 } 76 test2(); 77 78 79 function test3() { 80 if (true) { 81 debugger; 82 } else { 83 with ({}) { 84 return 10; 85 } 86 } 87 } 88 test3(); 89 90 91 function test4() { 92 debugger; 93 with ({x:1}) x = 1 94 } 95 test4(); 96 97 98 function test5() { 99 debugger; 100 var dummy = 1; 101 with ({}) { 102 with ({}) { 103 dummy = 2; 104 } 105 } 106 dummy = 3; 107 } 108 test5(); 109 110 111 function test6() { 112 debugger; 113 try { 114 throw 'stuff'; 115 } catch (e) { 116 e = 1; 117 } 118 } 119 test6(); 120 121 122 function test7() { 123 debugger; 124 function foo() {} 125 } 126 test7(); 127 128 129 function test8() { 130 debugger; 131 (function foo() {})(); 132 } 133 test8(); 134 135 136 function test10() { 137 debugger; 138 with ({}) { 139 return 10; 140 } 141 } 142 test10(); 143 144 145 function test11() { 146 debugger; 147 try { 148 throw 'stuff'; 149 } catch (e) { 150 return 10; 151 } 152 } 153 test11(); 154 155 156 var prefixes = [ 157 "debugger; ", 158 "if (false) { try { throw 0; } catch(x) { return x; } }; debugger; " ]; 159 160 161 // Return from function constructed with Function constructor. 162 var anon = 12; 163 for (var i = 0; i < prefixes.length; ++i) { 164 var pre = prefixes[i]; 165 Function(pre + "return 42")(); 166 Function(pre + "return 42 ")(); 167 Function(pre + "return 42;")(); 168 Function(pre + "return 42; ")(); 169 Function(pre + "return anon")(); 170 Function(pre + "return anon ")(); 171 Function(pre + "return anon;")(); 172 Function(pre + "return anon; ")(); 173 } 174 175 176 try { 177 with({}) { 178 debugger; 179 eval("{}$%:^"); 180 } 181 } catch(e) { 182 nop(); 183 } 184 185 186 function nop() {} 187 188 189 // With block as the last(!) statement in global code. 190 with ({}) { debugger; }