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
123
124
125
126
127
128
129
130
131
|
<!DOCTYPE html>
<!--
Copyright (c) 2014 The Chromium Authors. All rights reserved.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->
<link rel="import" href="/tracing/base/base.html">
<script>
'use strict';
tr.exportTo('tr.b', function() {
/**
* Adds a {@code getInstance} static method that always return the same
* instance object.
* @param {!Function} ctor The constructor for the class to add the static
* method to.
*/
function addSingletonGetter(ctor) {
ctor.getInstance = function() {
return ctor.instance_ || (ctor.instance_ = new ctor());
};
}
function deepCopy(value) {
if (!(value instanceof Object)) {
if (value === undefined || value === null)
return value;
if (typeof value == 'string')
return value.substring();
if (typeof value == 'boolean')
return value;
if (typeof value == 'number')
return value;
throw new Error('Unrecognized: ' + typeof value);
}
var object = value;
if (object instanceof Array) {
var res = new Array(object.length);
for (var i = 0; i < object.length; i++)
res[i] = deepCopy(object[i]);
return res;
}
if (object.__proto__ != Object.prototype)
throw new Error('Can only clone simple types');
var res = {};
for (var key in object) {
res[key] = deepCopy(object[key]);
}
return res;
}
function normalizeException(e) {
if (e === undefined || e === null) {
return {
typeName: 'UndefinedError',
message: 'Unknown: null or undefined exception',
stack: 'Unknown'
};
}
if (typeof(e) == 'string') {
return {
typeName: 'StringError',
message: e,
stack: [e]
};
}
var typeName;
if (e.name) {
typeName = e.name;
} else if (e.constructor) {
if (e.constructor.name) {
typeName = e.constructor.name;
} else {
typeName = 'AnonymousError';
}
} else {
typeName = 'ErrorWithNoConstructor';
}
var msg = e.message ? e.message : 'Unknown';
return {
typeName: typeName,
message: msg,
stack: e.stack ? e.stack : [msg]
};
}
function stackTraceAsString() {
return new Error().stack + '';
}
function stackTrace() {
var stack = stackTraceAsString();
stack = stack.split('\n');
return stack.slice(2);
}
function getUsingPath(path, from_dict) {
var parts = path.split('.');
var cur = from_dict;
for (var part; parts.length && (part = parts.shift());) {
if (!parts.length) {
return cur[part];
} else if (part in cur) {
cur = cur[part];
} else {
return undefined;
}
}
return undefined;
}
return {
addSingletonGetter: addSingletonGetter,
deepCopy: deepCopy,
normalizeException: normalizeException,
stackTrace: stackTrace,
stackTraceAsString: stackTraceAsString,
getUsingPath: getUsingPath
};
});
</script>
|
