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 29// Get the Debug object exposed from the debug context global object. 30Debug = debug.Debug; 31 32function sendCommand(state, cmd) { 33 // Get the debug command processor in paused state. 34 var dcp = state.debugCommandProcessor(false); 35 var request = JSON.stringify(cmd); 36 var response = dcp.processDebugJSONRequest(request); 37 return JSON.parse(response); 38} 39 40function listener(event, exec_state, event_data, data) { 41 try { 42 if (event == Debug.DebugEvent.Break) { 43 var line = event_data.sourceLineText(); 44 print('break: ' + line); 45 46 var frame = sendCommand(exec_state, { 47 seq: 0, 48 type: "request", 49 command: "frame" 50 }); 51 52 sendCommand(exec_state, { 53 seq: 0, 54 type: "request", 55 command: "evaluate", 56 arguments: { 57 expression: "obj.x.toString()", 58 additional_context: [{ 59 name: "obj", 60 handle: frame.body.receiver.ref 61 }] 62 } 63 }); 64 } 65 } catch (e) { 66 print(e); 67 } 68} 69 70Debug.setListener(listener); 71 72function a(x, y) { 73 this.x = x; 74 this.y = y; 75} 76 77Debug.setBreakPoint(a, 0, 0); 78new a(1, 2);