1// Copyright 2008 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// The functions used for testing backtraces. They are at the top to make the
30// testing of source line/column easier.
31function f(x, y) {
32  a=1;
33};
34
35function g() {
36  new f(1);
37};
38
39
40// Get the Debug object exposed from the debug context global object.
41Debug = debug.Debug
42
43listenerCallCount = 0;
44listenerExceptions = [];
45
46
47function listener(event, exec_state, event_data, data) {
48  try {
49  if (event == Debug.DebugEvent.Break)
50  {
51    listenerCallCount++;
52
53    // Check that mirror cache is cleared when entering debugger.
54    assertEquals(0, debug.next_handle_, "Mirror cache not cleared");
55    assertEquals(0, debug.mirror_cache_.length, "Mirror cache not cleared");
56
57    // Get the debug command processor in paused state.
58    var dcp = exec_state.debugCommandProcessor(false);
59
60    // Make a backtrace request to create some mirrors.
61    var json;
62    json = '{"seq":0,"type":"request","command":"backtrace"}'
63    dcp.processDebugJSONRequest(json);
64
65    // Make sure looking up loaded scripts does not clear the cache.
66    Debug.scripts();
67
68    // Some mirrors where cached.
69    assertFalse(debug.next_handle_ == 0, "Mirror cache not used");
70    assertFalse(debug.mirror_cache_.length == 0, "Mirror cache not used");
71  }
72  } catch (e) {
73    print(e);
74    listenerExceptions.push(e);
75  };
76};
77
78// Add the debug event listener.
79Debug.setListener(listener);
80
81// Enter the debugger twice.
82debugger;
83debugger;
84
85assertEquals([], listenerExceptions, "Exception in listener");
86// Make sure that the debug event listener vas invoked.
87assertEquals(2, listenerCallCount, "Listener not called");
88