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;
33var step_out_count = 1;
34
35// Simple debug event handler which counts the number of breaks hit and steps.
36var break_point_hit_count = 0;
37function listener(event, exec_state, event_data, data) {
38  try {
39    if (event == Debug.DebugEvent.Break) {
40      break_point_hit_count++;
41      // Continue stepping until returned to bottom frame.
42      if (exec_state.frameCount() > 1) {
43        exec_state.prepareStep(Debug.StepAction.StepOut, step_out_count);
44      }
45
46    }
47  } catch(e) {
48    exception = e;
49  }
50
51};
52
53function BeginTest(name) {
54  test_name = name;
55  break_point_hit_count = 0;
56  exception = null;
57}
58
59function EndTest(expected_break_point_hit_count) {
60  assertEquals(expected_break_point_hit_count, break_point_hit_count, test_name);
61  assertNull(exception, test_name);
62  test_name = null;
63}
64
65// Add the debug event listener.
66Debug.setListener(listener);
67
68
69var shouldBreak = null;
70function fact(x) {
71  if (shouldBreak(x)) {
72    debugger;
73  }
74  if (x < 2) {
75    return 1;
76  } else {
77    return x*fact(x-1);
78  }
79}
80
81BeginTest('Test 1');
82shouldBreak = function(x) { return x == 3; };
83step_out_count = 1;
84fact(3);
85EndTest(2);
86
87BeginTest('Test 2');
88shouldBreak = function(x) { return x == 2; };
89step_out_count = 1;
90fact(3);
91EndTest(3);
92
93BeginTest('Test 3');
94shouldBreak = function(x) { return x == 1; };
95step_out_count = 2;
96fact(3);
97EndTest(2);
98
99BeginTest('Test 4');
100shouldBreak = function(x) { return x == 1 || x == 3; };
101step_out_count = 2;
102fact(3);
103EndTest(3);
104
105// Get rid of the debug event listener.
106Debug.setListener(null);
107