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. 30Debug = debug.Debug 31 32// Simple function which collects a simple call graph. 33var call_graph = ""; 34function listener(event, exec_state, event_data, data) { 35 if (event == Debug.DebugEvent.Break) 36 { 37 call_graph += exec_state.frame().func().name(); 38 exec_state.prepareStep(); 39 } 40}; 41 42// Add the debug event listener. 43Debug.setListener(listener); 44 45// Test debug event for constructor. 46function a() { 47 new c(); 48} 49 50function b() { 51 x = 1; 52 new c(); 53} 54 55function c() { 56 this.x = 1; 57 d(); 58} 59 60function d() { 61} 62 63// Break point stops on "new c()" and steps into c. 64Debug.setBreakPoint(a, 1); 65call_graph = ""; 66a(); 67Debug.clearStepping(); // Clear stepping as the listener leaves it on. 68assertEquals("accdca", call_graph); 69 70// Break point stops on "x = 1" and steps to "new c()" and then into c. 71Debug.setBreakPoint(b, 1); 72call_graph = ""; 73b(); 74Debug.clearStepping(); // Clear stepping as the listener leaves it on. 75assertEquals("bbccdcb", call_graph); 76 77// Get rid of the debug event listener. 78Debug.setListener(null);