"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.atSet = void 0;
/**
 * @since 1.2.0
 */
var __1 = require("..");
var S = require("fp-ts/lib/Set");
/**
 * @category constructor
 * @since 1.2.0
 */
function atSet(E) {
    var elemE = S.elem(E);
    var insertE = S.insert(E);
    var removeE = S.remove(E);
    return new __1.At(function (at) {
        var insertEAt = insertE(at);
        var removeEAt = removeE(at);
        return new __1.Lens(function (s) { return elemE(at, s); }, function (a) { return function (s) { return (a ? insertEAt(s) : removeEAt(s)); }; });
    });
}
exports.atSet = atSet;