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: --allow-natives-syntax --expose-debug-as debug 6 7 Debug = debug.Debug 8 var exception = null; 9 10 function listener(event, exec_state, event_data, data) { 11 try { 12 if (event == Debug.DebugEvent.Break) { 13 exec_state.prepareStep(Debug.StepAction.StepIn); 14 } 15 } catch (e) { 16 exception = e; 17 } 18 } 19 20 Debug.setListener(listener); 21 22 function f(x) { 23 if (x > 0) %_Call(f, null, x-1); 24 } 25 26 debugger; 27 f(2); 28 29 Debug.setListener(null); 30 assertNull(exception); 31