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
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
// Copyright 2008 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
// The functions used for testing backtraces.
function Point(x, y) {
this.x = x;
this.y = y;
};
Point.prototype.distanceTo = function(p) {
debugger;
return Math.sqrt(Math.pow(Math.abs(this.x - p.x), 2) + Math.pow(Math.abs(this.y - p.y), 2))
}
p1 = new Point(1,1);
p2 = new Point(2,2);
p1.distanceTo = function(p) {
return p.distanceTo(this);
}
function distance(p, q) {
return p.distanceTo(q);
}
function createPoint(x, y) {
return new Point(x, y);
}
a=[1,2,distance];
// Get the Debug object exposed from the debug context global object.
Debug = debug.Debug
testConstructor = false; // Flag to control which part of the test is run.
listenerCalled = false;
exception = false;
function safeEval(code) {
try {
return eval('(' + code + ')');
} catch (e) {
return undefined;
}
}
function listener(event, exec_state, event_data, data) {
try {
if (event == Debug.DebugEvent.Break)
{
if (!testConstructor) {
// The expected backtrace is
// 0: Call distance on Point where distance is a property on the prototype
// 1: Call distance on Point where distance is a direct property
// 2: Call on function an array element 2
// 3: [anonymous]
assertEquals("#<Point>.distanceTo(p=#<Point>)", exec_state.frame(0).invocationText());
assertEquals("#<Point>.distanceTo(p=#<Point>)", exec_state.frame(1).invocationText());
assertEquals("#<Array>[2](aka distance)(p=#<Point>, q=#<Point>)", exec_state.frame(2).invocationText());
assertEquals("[anonymous]()", exec_state.frame(3).invocationText());
listenerCalled = true;
} else {
// The expected backtrace is
// 0: Call Point constructor
// 1: Call on global function createPoint
// 2: [anonymous]
assertEquals("new Point(x=0, y=0)", exec_state.frame(0).invocationText());
assertEquals("createPoint(x=0, y=0)", exec_state.frame(1).invocationText());
assertEquals("[anonymous]()", exec_state.frame(2).invocationText());
listenerCalled = true;
}
}
} catch (e) {
exception = e
};
};
// Add the debug event listener.
Debug.setListener(listener);
// Set a break point and call to invoke the debug event listener.
a[2](p1, p2)
// Make sure that the debug event listener vas invoked.
assertTrue(listenerCalled);
assertFalse(exception, "exception in listener")
// Set a break point and call to invoke the debug event listener.
listenerCalled = false;
testConstructor = true;
Debug.setBreakPoint(Point, 0, 0);
createPoint(0, 0);
// Make sure that the debug event listener vas invoked (again).
assertTrue(listenerCalled);
assertFalse(exception, "exception in listener")
|
