39 lines
1.6 KiB
TypeScript
39 lines
1.6 KiB
TypeScript
/**
|
|
* @license
|
|
* Copyright Google Inc. All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by an MIT-style license that can be
|
|
* found in the LICENSE file at https://angular.io/license
|
|
*/
|
|
|
|
// TODO(jteplitz602): Load WorkerGlobalScope from lib.webworker.d.ts file #3492
|
|
declare var WorkerGlobalScope: any /** TODO #9100 */;
|
|
// CommonJS / Node have global context exposed as "global" variable.
|
|
// We don't want to include the whole node.d.ts this this compilation unit so we'll just fake
|
|
// the global "global" var for now.
|
|
declare var global: any /** TODO #9100 */;
|
|
// Not yet available in TypeScript: https://github.com/Microsoft/TypeScript/pull/29332
|
|
declare var globalThis: any /** TODO #9100 */;
|
|
|
|
function getGlobal(): any {
|
|
const __globalThis = typeof globalThis !== 'undefined' && globalThis;
|
|
const __window = typeof window !== 'undefined' && window;
|
|
const __self = typeof self !== 'undefined' && typeof WorkerGlobalScope !== 'undefined' &&
|
|
self instanceof WorkerGlobalScope && self;
|
|
const __global = typeof global !== 'undefined' && global;
|
|
|
|
// Always use __globalThis if available, which is the spec-defined global variable across all
|
|
// environments, then fallback to __global first, because in Node tests both __global and
|
|
// __window may be defined and _global should be __global in that case.
|
|
return __globalThis || __global || __window || __self;
|
|
}
|
|
|
|
const _global = getGlobal();
|
|
|
|
/**
|
|
* Attention: whenever providing a new value, be sure to add an
|
|
* entry into the corresponding `....externs.js` file,
|
|
* so that closure won't use that global for its purposes.
|
|
*/
|
|
export {_global as global};
|