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 // Simple debug event handler which counts the number of breaks hit and steps. 33 var break_break_point_hit_count = 0; 34 function listener(event, exec_state, event_data, data) { 35 if (event == Debug.DebugEvent.Break) { 36 break_break_point_hit_count++; 37 // Continue stepping until returned to bottom frame. 38 if (exec_state.frameCount() > 1) { 39 exec_state.prepareStep(Debug.StepAction.StepIn); 40 } 41 } 42 }; 43 44 // Add the debug event listener. 45 Debug.setListener(listener); 46 47 // Use 'eval' to ensure that the call to print is through CodeStub CallFunction. 48 // See Ia32CodeGenerator::VisitCall and Ia32CodeGenerator::CallWithArguments. 49 function f() { 50 debugger; 51 eval(''); 52 print('Hello, world!'); 53 }; 54 55 break_break_point_hit_count = 0; 56 f(); 57 assertEquals(6, break_break_point_hit_count); 58 59 // Use an inner function to ensure that the function call is through CodeStub 60 // CallFunction see Ia32CodeGenerator::VisitCall and 61 // Ia32CodeGenerator::CallWithArguments. 62 function g() { 63 function h() {} 64 debugger; 65 h(); 66 }; 67 68 break_break_point_hit_count = 0; 69 g(); 70 assertEquals(5, break_break_point_hit_count); 71 72 73 // Use an inner function to ensure that the function call is through CodeStub 74 // CallFunction. 75 function testCallInExpreesion() { 76 function h() {} 77 debugger; 78 var x = 's' + h(10, 20); 79 }; 80 81 break_break_point_hit_count = 0; 82 testCallInExpreesion(); 83 assertEquals(5, break_break_point_hit_count); 84 85 86 // Get rid of the debug event listener. 87 Debug.setListener(null); 88
