1// Copyright 2015 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 --harmony-default-parameters
6
7Debug = debug.Debug
8
9var exception = null;
10var log = [];
11
12function listener(event, exec_state, event_data, data) {
13  if (event != Debug.DebugEvent.Break) return;
14  try {
15    print(event_data.sourceLineText());
16    var entry = "";
17    for (var i = 0; i < exec_state.frameCount(); i++) {
18      entry += exec_state.frame(i).sourceLineText().substr(-1);
19      entry += exec_state.frame(i).sourceColumn();
20    }
21    log.push(entry);
22    exec_state.prepareStep(Debug.StepAction.StepIn);
23  } catch (e) {
24    exception = e;
25  }
26};
27
28function default_arg(x) {
29  return "default";                 // d
30}                                   // e
31
32function f(arg0 = default_arg()) {  // f
33  return arg0;                      // g
34}                                   // h
35
36
37Debug.setListener(listener);
38debugger;                           // a
39var result = f();                   // b
40Debug.setListener(null);            // c
41
42assertNull(exception);
43assertEquals("default", result);
44
45assertEquals(["a0","b0","f18b13","d2f18b13","e0f18b13","g2b13","h0b13","c0"],
46             log);
47