.internal/cloneSet.js

import addSetEntry from './addSetEntry.js'
import arrayReduce from './arrayReduce.js'
import setToArray from './setToArray.js'

/** Used to compose bitmasks for cloning. */
const CLONE_DEEP_FLAG = 1

/**
 * Creates a clone of `set`.
 *
 * @private
 * @param {Object} set The set to clone.
 * @param {Function} cloneFunc The function to clone values.
 * @param {boolean} [isDeep] Specify a deep clone.
 * @returns {Object} Returns the cloned set.
 */
function cloneSet(set, isDeep, cloneFunc) {
  const array = isDeep ? cloneFunc(setToArray(set), CLONE_DEEP_FLAG) : setToArray(set)
  return arrayReduce(array, addSetEntry, new set.constructor)
}

export default cloneSet