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 // Flags: --expose-debug-as debug 29 // Get the Debug object exposed from the debug context global object. 30 Debug = debug.Debug 31 32 listenerComplete = false; 33 exception = false; 34 35 36 function h() { 37 var a = 1; 38 var b = 2; 39 var eval = 5; // Overriding eval should not break anything. 40 debugger; // Breakpoint. 41 return a; 42 } 43 44 function checkFrame0(frame) { 45 // Frame 0 (h) has normal variables a and b. 46 var count = frame.localCount(); 47 assertEquals(3, count); 48 for (var i = 0; i < count; ++i) { 49 var name = frame.localName(i); 50 var value = frame.localValue(i).value(); 51 if (name == 'a') { 52 assertEquals(1, value); 53 } else if (name !='eval') { 54 assertEquals('b', name); 55 assertEquals(2, value); 56 } 57 } 58 } 59 60 61 function g() { 62 var a = 3; 63 eval("var b = 4;"); 64 return h() + a; 65 } 66 67 function checkFrame1(frame) { 68 // Frame 1 (g) has normal variable a (and arguments). 69 var count = frame.localCount(); 70 assertEquals(2, count); 71 for (var i = 0; i < count; ++i) { 72 var name = frame.localName(i); 73 var value = frame.localValue(i).value(); 74 if (name == 'a') { 75 assertEquals(3, value); 76 } else { 77 assertEquals('arguments', name); 78 } 79 } 80 } 81 82 83 function f() { 84 var a = 5; 85 var b = 0; 86 with ({b:6}) { 87 return g(); 88 } 89 } 90 91 function checkFrame2(frame) { 92 // Frame 2 (f) has normal variables a and b (and arguments). 93 var count = frame.localCount(); 94 assertEquals(3, count); 95 for (var i = 0; i < count; ++i) { 96 var name = frame.localName(i); 97 var value = frame.localValue(i).value(); 98 if (name == 'a') { 99 assertEquals(5, value); 100 } else if (name == 'b') { 101 assertEquals(0, value); 102 } else { 103 assertEquals('arguments', name); 104 } 105 } 106 } 107 108 109 function listener(event, exec_state, event_data, data) { 110 try { 111 if (event == Debug.DebugEvent.Break) 112 { 113 checkFrame0(exec_state.frame(0)); 114 checkFrame1(exec_state.frame(1)); 115 checkFrame2(exec_state.frame(2)); 116 117 // Evaluating a and b on frames 0, 1 and 2 produces 1, 2, 3, 4, 5 and 6. 118 assertEquals(1, exec_state.frame(0).evaluate('a').value()); 119 assertEquals(2, exec_state.frame(0).evaluate('b').value()); 120 assertEquals(5, exec_state.frame(0).evaluate('eval').value()); 121 assertEquals(3, exec_state.frame(1).evaluate('a').value()); 122 assertEquals(4, exec_state.frame(1).evaluate('b').value()); 123 assertEquals("function", 124 typeof exec_state.frame(1).evaluate('eval').value()); 125 assertEquals(5, exec_state.frame(2).evaluate('a').value()); 126 assertEquals(6, exec_state.frame(2).evaluate('b').value()); 127 assertEquals("function", 128 typeof exec_state.frame(2).evaluate('eval').value()); 129 assertEquals("foo", 130 exec_state.frame(0).evaluate('a = "foo"').value()); 131 assertEquals("bar", 132 exec_state.frame(1).evaluate('a = "bar"').value()); 133 // Indicate that all was processed. 134 listenerComplete = true; 135 } 136 } catch (e) { 137 exception = e; 138 print("Caught something. " + e + " " + e.stack); 139 }; 140 }; 141 142 // Add the debug event listener. 143 Debug.setListener(listener); 144 145 var f_result = f(); 146 147 assertEquals('foobar', f_result); 148 149 // Make sure that the debug event listener was invoked. 150 assertFalse(exception, "exception in listener") 151 assertTrue(listenerComplete); 152
