1// Copyright 2012 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.
30
31Debug = debug.Debug;
32
33SlimFunction = eval(
34    "(function() {\n " +
35    "  return 'Cat';\n" +
36    "})\n"
37);
38
39var script = Debug.findScript(SlimFunction);
40
41Debug.setScriptBreakPointById(script.id, 1, 0);
42
43var orig_animal = "'Cat'";
44var patch_pos = script.source.indexOf(orig_animal);
45var new_animal_patch = "'Capybara'";
46
47debugger_handler = (function() {
48  var already_called = false;
49  return function() {
50    if (already_called) {
51      return;
52    }
53    already_called = true;
54
55    var change_log = new Array();
56    try {
57      Debug.LiveEdit.TestApi.ApplySingleChunkPatch(script, patch_pos,
58          orig_animal.length, new_animal_patch, change_log);
59    } finally {
60      print("Change log: " + JSON.stringify(change_log) + "\n");
61    }
62  };
63})();
64
65var saved_exception = null;
66
67function listener(event, exec_state, event_data, data) {
68  if (event == Debug.DebugEvent.Break) {
69    try {
70      debugger_handler();
71    } catch (e) {
72      saved_exception = e;
73    }
74  } else {
75    print("Other: " + event);
76  }
77}
78
79Debug.setListener(listener);
80
81var animal = SlimFunction();
82
83if (saved_exception) {
84  print("Exception: " + saved_exception);
85  assertUnreachable();
86}
87
88assertEquals("Capybara", animal);
89