@effect-ts/system/_src/Utils/equal.ts

Effect-TS is a zero dependency set of libraries to write highly productive, purely functional TypeScript at scale.

// ets_tracing: off

export type IsEqualTo<X, Y> = (<T>() => T extends X ? 1 : 2) extends <
  T
>() => T extends Y ? 1 : 2
  ? true
  : false