Revision 5f64ae878e892ab293e54e779f470fd0ccc0db2c authored by TypeScript Bot on 10 August 2022, 06:07:48 UTC, committed by TypeScript Bot on 10 August 2022, 06:07:48 UTC
1 parent 35c6fbf
globalThisShim.ts
// We polyfill `globalThis` here so re can reliably patch the global scope
// in the contexts we want to in the same way across script and module formats
// https://mathiasbynens.be/notes/globalthis
// #region The polyfill starts here.
/* eslint-disable no-var */
/* @internal */
declare var window: {};
/* eslint-enable no-var */
((() => {
if (typeof globalThis === "object") return;
try {
Object.defineProperty(Object.prototype, "__magic__", {
get() {
return this;
},
configurable: true
});
//@ts-ignore
__magic__.globalThis = __magic__;
// The previous line should have made `globalThis` globally
// available, but it fails in Internet Explorer 10 and older.
// Detect this failure and fall back.
if (typeof globalThis === "undefined") {
// Assume `window` exists.
//@ts-ignore
window.globalThis = window;
}
//@ts-ignore
delete Object.prototype.__magic__;
}
catch (error) {
// In IE8, Object.defineProperty only works on DOM objects.
// If we hit this code path, assume `window` exists.
//@ts-ignore
window.globalThis = window;
}
})());
// #endregion The polyfill ends here.
// if `process` is undefined, we're probably not running in node - patch legacy members onto the global scope
// @ts-ignore
if (typeof process === "undefined" || process.browser) {
/// TODO: this is used by VS, clean this up on both sides of the interface
//@ts-ignore
globalThis.TypeScript = globalThis.TypeScript || {};
//@ts-ignore
globalThis.TypeScript.Services = globalThis.TypeScript.Services || {};
//@ts-ignore
globalThis.TypeScript.Services.TypeScriptServicesFactory = ts.TypeScriptServicesFactory;
// 'toolsVersion' gets consumed by the managed side, so it's not unused.
// TODO: it should be moved into a namespace though.
//@ts-ignore
globalThis.toolsVersion = ts.versionMajorMinor;
}
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