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| 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 var exception = null; |
| 33 var state = 0; |
| 34 |
| 35 // Simple debug event handler which first time will cause 'step in' action |
| 36 // to get into g.call and than check that execution is pauesed inside |
| 37 // function 'g'. |
| 38 function listener(event, exec_state, event_data, data) { |
| 39 try { |
| 40 if (event == Debug.DebugEvent.Break) { |
| 41 if (state == 0) { |
| 42 // Step into f2.call: |
| 43 exec_state.prepareStep(Debug.StepAction.StepIn, 2); |
| 44 state = 2; |
| 45 } else if (state == 2) { |
| 46 assertEquals('g', event_data.func().name()); |
| 47 assertEquals(' return t + 1; // expected line', |
| 48 event_data.sourceLineText()); |
| 49 state = 3; |
| 50 } |
| 51 } |
| 52 } catch(e) { |
| 53 exception = e; |
| 54 } |
| 55 }; |
| 56 |
| 57 // Add the debug event listener. |
| 58 Debug.setListener(listener); |
| 59 |
| 60 |
| 61 // Sample functions. |
| 62 function g(t) { |
| 63 return t + 1; // expected line |
| 64 } |
| 65 |
| 66 // Test step into function call from a function without local variables. |
| 67 function call1() { |
| 68 debugger; |
| 69 g.call(null, 3); |
| 70 } |
| 71 |
| 72 |
| 73 // Test step into function call from a function with some local variables. |
| 74 function call2() { |
| 75 var aLocalVar = 'test'; |
| 76 var anotherLocalVar = g(aLocalVar) + 's'; |
| 77 var yetAnotherLocal = 10; |
| 78 debugger; |
| 79 g.call(null, 3); |
| 80 } |
| 81 |
| 82 // Test step into function call which is a part of an expression. |
| 83 function call3() { |
| 84 var alias = g; |
| 85 debugger; |
| 86 var r = 10 + alias.call(null, 3); |
| 87 var aLocalVar = 'test'; |
| 88 var anotherLocalVar = g(aLocalVar) + 's'; |
| 89 var yetAnotherLocal = 10; |
| 90 } |
| 91 |
| 92 // Test step into function call from a function with some local variables. |
| 93 function call4() { |
| 94 var alias = g; |
| 95 debugger; |
| 96 alias.call(null, 3); |
| 97 var aLocalVar = 'test'; |
| 98 var anotherLocalVar = g(aLocalVar) + 's'; |
| 99 var yetAnotherLocal = 10; |
| 100 } |
| 101 |
| 102 // Test step into function apply from a function without local variables. |
| 103 function apply1() { |
| 104 debugger; |
| 105 g.apply(null, [3]); |
| 106 } |
| 107 |
| 108 |
| 109 // Test step into function apply from a function with some local variables. |
| 110 function apply2() { |
| 111 var aLocalVar = 'test'; |
| 112 var anotherLocalVar = g(aLocalVar) + 's'; |
| 113 var yetAnotherLocal = 10; |
| 114 debugger; |
| 115 g.apply(null, [3, 4]); |
| 116 } |
| 117 |
| 118 // Test step into function apply which is a part of an expression. |
| 119 function apply3() { |
| 120 var alias = g; |
| 121 debugger; |
| 122 var r = 10 + alias.apply(null, [3, 'unused arg']); |
| 123 var aLocalVar = 'test'; |
| 124 var anotherLocalVar = g(aLocalVar) + 's'; |
| 125 var yetAnotherLocal = 10; |
| 126 } |
| 127 |
| 128 // Test step into function apply from a function with some local variables. |
| 129 function apply4() { |
| 130 var alias = g; |
| 131 debugger; |
| 132 alias.apply(null, [3]); |
| 133 var aLocalVar = 'test'; |
| 134 var anotherLocalVar = g(aLocalVar) + 's'; |
| 135 var yetAnotherLocal = 10; |
| 136 } |
| 137 |
| 138 var testFunctions = |
| 139 [call1, call2, call3, call4, apply1, apply2, apply3, apply4]; |
| 140 |
| 141 for (var i = 0; i < testFunctions.length; i++) { |
| 142 state = 0; |
| 143 testFunctions[i](); |
| 144 assertNull(exception); |
| 145 assertEquals(3, state); |
| 146 } |
| 147 |
| 148 // Get rid of the debug event listener. |
| 149 Debug.setListener(null); |
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