Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 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 | // Make sure that the backtrace command can be processed when the receiver is |
| 33 | // undefined. |
| 34 | listenerCalled = false; |
| 35 | exception = false; |
| 36 | |
| 37 | function ParsedResponse(json) { |
| 38 | this.response_ = eval('(' + json + ')'); |
| 39 | this.refs_ = []; |
| 40 | if (this.response_.refs) { |
| 41 | for (var i = 0; i < this.response_.refs.length; i++) { |
| 42 | this.refs_[this.response_.refs[i].handle] = this.response_.refs[i]; |
| 43 | } |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | |
| 48 | ParsedResponse.prototype.response = function() { |
| 49 | return this.response_; |
| 50 | } |
| 51 | |
| 52 | |
| 53 | ParsedResponse.prototype.body = function() { |
| 54 | return this.response_.body; |
| 55 | } |
| 56 | |
| 57 | |
| 58 | ParsedResponse.prototype.lookup = function(handle) { |
| 59 | return this.refs_[handle]; |
| 60 | } |
| 61 | |
| 62 | |
| 63 | function listener(event, exec_state, event_data, data) { |
| 64 | try { |
| 65 | if (event == Debug.DebugEvent.Exception) |
| 66 | { |
| 67 | // The expected backtrace is |
| 68 | // 1: g |
| 69 | // 0: [anonymous] |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 70 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 71 | // Get the debug command processor. |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 72 | var dcp = exec_state.debugCommandProcessor(false); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 73 | |
| 74 | // Get the backtrace. |
| 75 | var json; |
| 76 | json = '{"seq":0,"type":"request","command":"backtrace"}' |
| 77 | var response = new ParsedResponse(dcp.processDebugJSONRequest(json)); |
| 78 | var backtrace = response.body(); |
| 79 | assertEquals(2, backtrace.totalFrames); |
| 80 | assertEquals(2, backtrace.frames.length); |
| 81 | |
| 82 | assertEquals("g", response.lookup(backtrace.frames[0].func.ref).name); |
| 83 | assertEquals("", response.lookup(backtrace.frames[1].func.ref).name); |
| 84 | |
| 85 | listenerCalled = true; |
| 86 | } |
| 87 | } catch (e) { |
| 88 | exception = e |
| 89 | }; |
| 90 | }; |
| 91 | |
| 92 | // Add the debug event listener. |
| 93 | Debug.setListener(listener); |
| 94 | |
| 95 | // Call method on undefined. |
| 96 | function g() { |
| 97 | (void 0).f(); |
| 98 | }; |
| 99 | |
| 100 | // Break on the exception to do a backtrace with undefined as receiver. |
| 101 | Debug.setBreakOnException(true); |
| 102 | try { |
| 103 | g(); |
| 104 | } catch(e) { |
| 105 | // Ignore the exception "Cannot call method 'x' of undefined" |
| 106 | } |
| 107 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 108 | assertFalse(exception, "exception in listener", exception) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 109 | // Make sure that the debug event listener vas invoked. |
| 110 | assertTrue(listenerCalled, "listener not called"); |