Function swap

packages/effect/src/internal/stm/tRandom.ts:52–68

(buffer: TArray.TArray<A>, index1: number, index2: number)

  nextIntBounded: (n: number) => STM.STM<number>
): STM.STM<Array<A>> => {
  const swap = (buffer: TArray.TArray<A>, index1: number, index2: number): STM.STM<void> =>
    pipe(
      buffer,
      tArray.get(index1),
      core.flatMap((tmp) =>
        pipe(
          buffer,
          tArray.updateSTM(index1, () => pipe(buffer, tArray.get(index2))),
          core.zipRight(
            pipe(
              buffer,
              tArray.update(index2, () => tmp)
            )
          )
        )
      )
    )
  return pipe(
    tArray.fromIterable(iterable),
    core.flatMap((buffer) => {