effect/src/internal/stm/txnId.ts

The missing standard library for TypeScript, for writing production-grade software.

/** @internal */
export type TxnId = number & {
  readonly TransactioId: unique symbol
}

/** @internal */
const txnCounter = { ref: 0 }

/** @internal */
export const make = (): TxnId => {
  const newId = txnCounter.ref + 1
  txnCounter.ref = newId
  return newId as TxnId
}