export const SortedSetSym = Symbol.for("@tsplus/stdlib/collections/SortedSet")
export type SortedSetSym = typeof SortedSetSym

export const _A = Symbol.for("@tsplus/stdlib/collections/SortedSet/A")
export type _A = typeof _A

/**
 * @tsplus type SortedSet
 */
export interface SortedSet<A> extends Collection<A>, Equals {
  readonly [SortedSetSym]: SortedSetSym
  readonly [_A]: () => A
  [Symbol.iterator](): Iterator<A>
}

/**
 * @tsplus type SortedSet.Ops
 */
export interface SortedSetOps {
  $: SortedSetAspects
}
export const SortedSet: SortedSetOps = {
  $: {}
}

/**
 * @tsplus type SortedSet.Aspects
 */
export interface SortedSetAspects {}

/**
 * Type guard
 *
 * @tsplus static SortedSet.Ops isSortedSet
 */
export function isSortedSet<A>(u: Iterable<A>): u is SortedSet<A>
export function isSortedSet(u: unknown): u is SortedSet<unknown>
export function isSortedSet(u: unknown): u is SortedSet<unknown> {
  return typeof u === "object" && u != null && SortedSetSym in u
}