1 // Copyright 2014 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Flags: --expose-debug-as debug 6 7 function f() { 8 var a = 1; 9 var b = 2; 10 return a + b; 11 } 12 13 var exception = null; 14 var break_count = 0; 15 var throw_count = 0; 16 17 function listener(event, exec_state, event_data, data) { 18 try { 19 if (event == Debug.DebugEvent.Break) { 20 break_count++; 21 // Disable all breakpoints from within the debug event callback. 22 Debug.debuggerFlags().breakPointsActive.setValue(false); 23 } else if (event = Debug.DebugEvent.Exception) { 24 throw_count++; 25 // Enable all breakpoints from within the debug event callback. 26 Debug.debuggerFlags().breakPointsActive.setValue(true); 27 } 28 } catch (e) { 29 exception = e; 30 } 31 } 32 33 Debug = debug.Debug; 34 35 Debug.setListener(listener); 36 Debug.setBreakOnException(); 37 Debug.setBreakPoint(f, 2); 38 39 f(); 40 f(); 41 42 assertEquals(1, break_count); 43 assertEquals(0, throw_count); 44 45 // Trigger exception event. 46 try { throw 1; } catch (e) {} 47 48 f(); 49 f(); 50 51 Debug.setListener(null); 52 Debug.clearBreakOnException(); 53 Debug.debuggerFlags().breakPointsActive.setValue(true); 54 55 assertEquals(2, break_count); 56 assertEquals(1, throw_count); 57 assertNull(exception); 58
