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 7Debug = debug.Debug 8var exception = null; 9 10function 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 20Debug.setListener(listener); 21 22function f(x) { 23 if (x > 0) %_Call(f, null, x-1); 24} 25 26debugger; 27f(2); 28 29Debug.setListener(null); 30assertNull(exception); 31