opentelemetry-js/api/src/platform/browser/globalThis.ts

36 lines
1.3 KiB
TypeScript

/*
* Copyright The OpenTelemetry Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// Updates to this file should also be replicated to @opentelemetry/api-metrics and
// @opentelemetry/core too.
/**
* - globalThis (New standard)
* - self (Will return the current window instance for supported browsers)
* - window (fallback for older browser implementations)
* - global (NodeJS implementation)
* - <object> (When all else fails)
*/
/** only globals that common to node and browsers are allowed */
// eslint-disable-next-line node/no-unsupported-features/es-builtins, no-undef
export const _globalThis: typeof globalThis =
typeof globalThis === 'object' ? globalThis :
typeof self === 'object' ? self :
typeof window === 'object' ? window :
typeof global === 'object' ? global :
{} as typeof globalThis;