Last change
on this file since 8d391a1 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
initial commit
|
-
Property mode
set to
100644
|
File size:
1.1 KB
|
Line | |
---|
1 | /*
|
---|
2 | MIT License http://www.opensource.org/licenses/mit-license.php
|
---|
3 | */
|
---|
4 |
|
---|
5 | "use strict";
|
---|
6 |
|
---|
7 | const RuntimeGlobals = require("../RuntimeGlobals");
|
---|
8 | const RuntimeModule = require("../RuntimeModule");
|
---|
9 | const Template = require("../Template");
|
---|
10 |
|
---|
11 | class GlobalRuntimeModule extends RuntimeModule {
|
---|
12 | constructor() {
|
---|
13 | super("global");
|
---|
14 | }
|
---|
15 |
|
---|
16 | /**
|
---|
17 | * @returns {string} runtime code
|
---|
18 | */
|
---|
19 | generate() {
|
---|
20 | return Template.asString([
|
---|
21 | `${RuntimeGlobals.global} = (function() {`,
|
---|
22 | Template.indent([
|
---|
23 | "if (typeof globalThis === 'object') return globalThis;",
|
---|
24 | "try {",
|
---|
25 | Template.indent(
|
---|
26 | // This works in non-strict mode
|
---|
27 | // or
|
---|
28 | // This works if eval is allowed (see CSP)
|
---|
29 | "return this || new Function('return this')();"
|
---|
30 | ),
|
---|
31 | "} catch (e) {",
|
---|
32 | Template.indent(
|
---|
33 | // This works if the window reference is available
|
---|
34 | "if (typeof window === 'object') return window;"
|
---|
35 | ),
|
---|
36 | "}"
|
---|
37 | // It can still be `undefined`, but nothing to do about it...
|
---|
38 | // We return `undefined`, instead of nothing here, so it's
|
---|
39 | // easier to handle this case:
|
---|
40 | // if (!global) { … }
|
---|
41 | ]),
|
---|
42 | "})();"
|
---|
43 | ]);
|
---|
44 | }
|
---|
45 | }
|
---|
46 |
|
---|
47 | module.exports = GlobalRuntimeModule;
|
---|
Note:
See
TracBrowser
for help on using the repository browser.