Function mergeRunOptions

repos/effect/packages/effect/src/ManagedRuntime.ts:285–296

(options?: O)

 * @since 2.0.0
 */
export const make = <R, ER>(
  layer: Layer.Layer<R, ER, never>,
  options?: {
    readonly memoMap?: Layer.MemoMap | undefined
  } | undefined
): ManagedRuntime<R, ER> => {
  const memoMap = options?.memoMap ?? Layer.makeMemoMapUnsafe()
  const scope = Scope.makeUnsafe("parallel")
  const layerScope = Scope.forkUnsafe(scope, "sequential")
  const defaultRunOptions: Effect.RunOptions = {
    onFiberStart: Fiber.runIn(scope)
  }
  const mergeRunOptions = <O extends Effect.RunOptions>(options?: O): O =>
    options
      ? {