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| 1 // Copyright 2008 the V8 project authors. All rights reserved. | 1 // Copyright 2008 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
| 11 // with the distribution. | 11 // with the distribution. |
| 12 // * Neither the name of Google Inc. nor the names of its | 12 // * Neither the name of Google Inc. nor the names of its |
| 13 // contributors may be used to endorse or promote products derived | 13 // contributors may be used to endorse or promote products derived |
| 14 // from this software without specific prior written permission. | 14 // from this software without specific prior written permission. |
| 15 // | 15 // |
| 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 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. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | 27 |
| 28 // Flags: --expose-debug-as debug | 28 // Flags: --expose-debug-as debug |
| 29 // Get the Debug object exposed from the debug context global object. | 29 // Get the Debug object exposed from the debug context global object. |
| 30 Debug = debug.Debug | 30 Debug = debug.Debug; |
| 31 | 31 |
| 32 // Make sure that the backtrace command can be processed when the receiver is | 32 // Make sure that the backtrace command can be processed when the receiver is |
| 33 // undefined. | 33 // undefined. |
| 34 listenerCalled = false; | 34 listenerCalled = false; |
| 35 exception = false; | 35 exception = false; |
| 36 | 36 |
| 37 function ParsedResponse(json) { | 37 function ParsedResponse(json) { |
| 38 this.response_ = eval('(' + json + ')'); | 38 this.response_ = eval('(' + json + ')'); |
| 39 this.refs_ = []; | 39 this.refs_ = []; |
| 40 if (this.response_.refs) { | 40 if (this.response_.refs) { |
| 41 for (var i = 0; i < this.response_.refs.length; i++) { | 41 for (var i = 0; i < this.response_.refs.length; i++) { |
| 42 this.refs_[this.response_.refs[i].handle] = this.response_.refs[i]; | 42 this.refs_[this.response_.refs[i].handle] = this.response_.refs[i]; |
| 43 } | 43 } |
| 44 } | 44 } |
| 45 } | 45 } |
| 46 | 46 |
| 47 | 47 |
| 48 ParsedResponse.prototype.response = function() { | 48 ParsedResponse.prototype.response = function() { |
| 49 return this.response_; | 49 return this.response_; |
| 50 } | 50 }; |
| 51 | 51 |
| 52 | 52 |
| 53 ParsedResponse.prototype.body = function() { | 53 ParsedResponse.prototype.body = function() { |
| 54 return this.response_.body; | 54 return this.response_.body; |
| 55 } | 55 }; |
| 56 | 56 |
| 57 | 57 |
| 58 ParsedResponse.prototype.lookup = function(handle) { | 58 ParsedResponse.prototype.lookup = function(handle) { |
| 59 return this.refs_[handle]; | 59 return this.refs_[handle]; |
| 60 } | 60 }; |
| 61 | 61 |
| 62 | 62 |
| 63 function listener(event, exec_state, event_data, data) { | 63 function listener(event, exec_state, event_data, data) { |
| 64 try { | 64 try { |
| 65 if (event == Debug.DebugEvent.Exception) | 65 if (event == Debug.DebugEvent.Exception) { |
| 66 { | |
| 67 // The expected backtrace is | 66 // The expected backtrace is |
| 68 // 1: g | 67 // 1: g |
| 69 // 0: [anonymous] | 68 // 0: [anonymous] |
| 70 | 69 |
| 71 // Get the debug command processor. | 70 // Get the debug command processor. |
| 72 var dcp = exec_state.debugCommandProcessor(false); | 71 var dcp = exec_state.debugCommandProcessor(false); |
| 73 | 72 |
| 74 // Get the backtrace. | 73 // Get the backtrace. |
| 75 var json; | 74 var json; |
| 76 json = '{"seq":0,"type":"request","command":"backtrace"}' | 75 json = '{"seq":0,"type":"request","command":"backtrace"}'; |
| 77 var response = new ParsedResponse(dcp.processDebugJSONRequest(json)); | 76 var response = new ParsedResponse(dcp.processDebugJSONRequest(json)); |
| 78 var backtrace = response.body(); | 77 var backtrace = response.body(); |
| 79 assertEquals(2, backtrace.totalFrames); | 78 assertEquals(2, backtrace.totalFrames); |
| 80 assertEquals(2, backtrace.frames.length); | 79 assertEquals(2, backtrace.frames.length); |
| 81 | 80 |
| 82 assertEquals("g", response.lookup(backtrace.frames[0].func.ref).name); | 81 assertEquals("g", response.lookup(backtrace.frames[0].func.ref).name); |
| 83 assertEquals("", response.lookup(backtrace.frames[1].func.ref).name); | 82 assertEquals("", response.lookup(backtrace.frames[1].func.ref).name); |
| 84 | 83 |
| 85 listenerCalled = true; | 84 listenerCalled = true; |
| 86 } | 85 } |
| 87 } catch (e) { | 86 } catch (e) { |
| 88 exception = e | 87 exception = e; |
| 89 }; | 88 } |
| 90 }; | 89 } |
| 91 | 90 |
| 92 // Add the debug event listener. | 91 // Add the debug event listener. |
| 93 Debug.setListener(listener); | 92 Debug.setListener(listener); |
| 94 | 93 |
| 95 // Call method on undefined. | 94 // Call method on undefined. |
| 96 function g() { | 95 function g() { |
| 97 (void 0).f(); | 96 (void 0).f(); |
| 98 }; | 97 } |
| 99 | 98 |
| 100 // Break on the exception to do a backtrace with undefined as receiver. | 99 // Break on the exception to do a backtrace with undefined as receiver. |
| 101 Debug.setBreakOnException(true); | 100 Debug.setBreakOnException(true); |
| 102 try { | 101 try { |
| 103 g(); | 102 g(); |
| 104 } catch(e) { | 103 } catch(e) { |
| 105 // Ignore the exception "Cannot call method 'x' of undefined" | 104 // Ignore the exception "Cannot call method 'x' of undefined" |
| 106 } | 105 } |
| 107 | 106 |
| 108 assertFalse(exception, "exception in listener", exception) | 107 assertFalse(exception, "exception in listener", exception); |
| 109 // Make sure that the debug event listener vas invoked. | 108 // Make sure that the debug event listener vas invoked. |
| 110 assertTrue(listenerCalled, "listener not called"); | 109 assertTrue(listenerCalled, "listener not called"); |
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