1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Flags: --expose-debug-as debug
// Get the Debug object exposed from the debug context global object.
Debug = debug.Debug;
SlimFunction = eval(
"(function() {\n " +
" return 'Cat';\n" +
"})\n"
);
var script = Debug.findScript(SlimFunction);
Debug.setScriptBreakPointById(script.id, 1, 0);
var orig_animal = "'Cat'";
var patch_pos = script.source.indexOf(orig_animal);
var new_animal_patch = "'Capybara'";
debugger_handler = (function() {
var already_called = false;
return function() {
if (already_called) {
return;
}
already_called = true;
var change_log = new Array();
try {
Debug.LiveEdit.TestApi.ApplySingleChunkPatch(script, patch_pos,
orig_animal.length, new_animal_patch, change_log);
} finally {
print("Change log: " + JSON.stringify(change_log) + "\n");
}
};
})();
var saved_exception = null;
function listener(event, exec_state, event_data, data) {
if (event == Debug.DebugEvent.Break) {
try {
debugger_handler();
} catch (e) {
saved_exception = e;
}
} else {
print("Other: " + event);
}
}
Debug.setListener(listener);
var animal = SlimFunction();
if (saved_exception) {
print("Exception: " + saved_exception);
assertUnreachable();
}
assertEquals("Capybara", animal);
|
