1// Copyright 2009 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
6//     * Redistributions of source code must retain the above copyright
7//       notice, this list of conditions and the following disclaimer.
8//     * Redistributions in binary form must reproduce the above
9//       copyright notice, this list of conditions and the following
10//       disclaimer in the documentation and/or other materials provided
11//       with the distribution.
12//     * Neither the name of Google Inc. nor the names of its
13//       contributors may be used to endorse or promote products derived
14//       from this software without specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28// Flags: --expose-debug-as debug
29// Get the Debug object exposed from the debug context global object.
30Debug = debug.Debug
31
32var exception = null;
33
34// Simple debug event handler which counts the number of breaks hit and steps.
35var break_point_hit_count = 0;
36function listener(event, exec_state, event_data, data) {
37  try {
38    if (event == Debug.DebugEvent.Break) {
39      break_point_hit_count++;
40      // Continue stepping until returned to bottom frame.
41      if (exec_state.frameCount() > 1) {
42        exec_state.prepareStep(Debug.StepAction.StepOut);
43      }
44
45    }
46  } catch(e) {
47    exception = e;
48  }
49
50};
51
52function BeginTest(name) {
53  test_name = name;
54  break_point_hit_count = 0;
55  exception = null;
56}
57
58function EndTest(expected_break_point_hit_count) {
59  assertEquals(expected_break_point_hit_count, break_point_hit_count, test_name);
60  assertNull(exception, test_name);
61  test_name = null;
62}
63
64// Add the debug event listener.
65Debug.setListener(listener);
66
67
68var shouldBreak = null;
69function fact(x) {
70  if (shouldBreak(x)) {
71    debugger;
72  }
73  if (x < 2) {
74    return 1;
75  } else {
76    return x*fact(x-1);
77  }
78}
79
80BeginTest('Test 1');
81shouldBreak = function(x) { return x == 3; };
82fact(3);
83EndTest(2);
84
85BeginTest('Test 2');
86shouldBreak = function(x) { return x == 2; };
87fact(3);
88EndTest(3);
89
90BeginTest('Test 3');
91shouldBreak = function(x) { return x == 1; };
92fact(3);
93EndTest(4);
94
95BeginTest('Test 4');
96shouldBreak = function(x) { return x == 1 || x == 3; };
97fact(3);
98EndTest(5);
99
100// Get rid of the debug event listener.
101Debug.setListener(null);
102