// Copyright (c) 2020 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

export const addAll = function<T>(set: Set<T>, iterable: Iterable<T>): void {
  for (const item of iterable) {
    set.add(item);
  }
};

export const isEqual = function<T>(setA: Set<T>, setB: Set<T>): boolean {
  if (setA === setB) {
    return true;
  }
  if (setA.size !== setB.size) {
    return false;
  }
  for (const item of setA) {
    if (!setB.has(item)) {
      return false;
    }
  }
  return true;
};