"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.createMembershipSet = createMembershipSet;
exports.membershipAdd = membershipAdd;
exports.membershipHas = membershipHas;
exports.membershipDelete = membershipDelete;
exports.membershipClear = membershipClear;
exports.membershipFromArray = membershipFromArray;
exports.membershipToArray = membershipToArray;
exports.membershipDedupeArray = membershipDedupeArray;
exports.membershipForEach = membershipForEach;
function createMembershipSet() {
    return new Map();
}
function membershipAdd(set, key) {
    set.set(key, true);
    return set;
}
function membershipHas(set, key) {
    return set.has(key);
}
function membershipDelete(set, key) {
    return set.delete(key);
}
function membershipClear(set) {
    set.clear();
}
function membershipFromArray(items) {
    const set = createMembershipSet();
    for (const item of items) {
        set.set(item, true);
    }
    return set;
}
function membershipToArray(set) {
    return [...set.keys()];
}
/** 去重数组（替代 Array.from(new Set(...)) / [...new Set(...)]） */
function membershipDedupeArray(items) {
    return membershipToArray(membershipFromArray(items));
}
function membershipForEach(set, fn) {
    for (const key of set.keys()) {
        fn(key);
    }
}
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