1// Copyright 2016 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 7var Debug = debug.Debug; 8 9function listener(event, exec_state, event_data, data) { 10 if (event != Debug.DebugEvent.Break) return; 11 try { 12 var frame_count = exec_state.frameCount(); 13 for (var i = 0; i < frame_count; i++) { 14 var frame = exec_state.frame(i); 15 var scope_count = frame.scopeCount(); 16 for (var j = 0; j < scope_count; j++) { 17 var scope = frame.scope(j); 18 assertTrue(scope.scopeObject().property('').isUndefined()); 19 } 20 } 21 } catch (e) { 22 print(e, e.stack); 23 exception = e; 24 } 25} 26 27Debug.setListener(listener); 28 29(function(a = 1) { debugger; })(); 30 31Debug.setListener(null); 32