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
|
/**
* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/
*/
"use strict";
if (!("self" in this)) {
throw new Error("No 'self' exists on SharedWorkerGlobalScope!");
}
if (this !== self) {
throw new Error("'self' not equal to global object!");
}
if (!(self instanceof SharedWorkerGlobalScope)) {
throw new Error("self not a SharedWorkerGlobalScope instance!");
}
var propsToCheck = [
"location",
"navigator",
"close",
"importScripts",
"setTimeout",
"clearTimeout",
"setInterval",
"clearInterval",
"dump",
"atob",
"btoa",
];
for (var index = 0; index < propsToCheck.length; index++) {
var prop = propsToCheck[index];
if (!(prop in self)) {
throw new Error("SharedWorkerGlobalScope has no '" + prop + "' property!");
}
}
onconnect = function (event) {
if (!("SharedWorkerGlobalScope" in self)) {
throw new Error("SharedWorkerGlobalScope should be visible!");
}
if (!(self instanceof SharedWorkerGlobalScope)) {
throw new Error("The global should be a SharedWorkerGlobalScope!");
}
if (!(self instanceof WorkerGlobalScope)) {
throw new Error("The global should be a WorkerGlobalScope!");
}
if ("DedicatedWorkerGlobalScope" in self) {
throw new Error("DedicatedWorkerGlobalScope should not be visible!");
}
if (!(event instanceof MessageEvent)) {
throw new Error("'connect' event is not a MessageEvent!");
}
if (!("ports" in event)) {
throw new Error("'connect' event doesn't have a 'ports' property!");
}
if (event.ports.length != 1) {
throw new Error(
"'connect' event has a 'ports' property with length '" +
event.ports.length +
"'!"
);
}
if (!event.ports[0]) {
throw new Error("'connect' event has a null 'ports[0]' property!");
}
if (!(event.ports[0] instanceof MessagePort)) {
throw new Error(
"'connect' event has a 'ports[0]' property that isn't a " + "MessagePort!"
);
}
if (!(event.ports[0] == event.source)) {
throw new Error("'connect' event source property is incorrect!");
}
if (event.data) {
throw new Error("'connect' event has data: " + event.data);
}
// Statement after return should trigger a warning, but NOT fire error events
// at us.
(function () {
return;
1;
});
event.ports[0].onmessage = function (msg) {
if (!(msg instanceof MessageEvent)) {
throw new Error("'message' event is not a MessageEvent!");
}
if (!("ports" in msg)) {
throw new Error("'message' event doesn't have a 'ports' property!");
}
if (msg.ports === null) {
throw new Error("'message' event has a null 'ports' property!");
}
msg.target.postMessage(msg.data);
throw new Error(msg.data);
};
};
|
