flags/flags.js

"use strict";
exports.__esModule = true;
var applyFlagHandler = function (fn) { return function (flags) { return function (initial) {
    if (initial === void 0) { initial = 0; }
    return fn(flags)(initial);
}; }; };
var $isset = function (flag) { return function (flags) {
    if (flags === void 0) { flags = 0; }
    return (flags & flag) === flag;
}; };
var $set = function (flag) { return function (flags) {
    if (flags === void 0) { flags = 0; }
    return flags | flag;
}; };
var $unset = function (flag) { return function (flags) {
    if (flags === void 0) { flags = 0; }
    return flags ^ flag;
}; };
var $toggle = function (flag) { return function (flags) {
    if (flags === void 0) { flags = 0; }
    return $isset(flag)(flags) ? $unset(flag)(flags) : $set(flag)(flags);
}; };
var combine = function () {
    var options = [];
    for (var _i = 0; _i < arguments.length; _i++) {
        options[_i] = arguments[_i];
    }
    return options.reduce(function (flags, flag) { return $set(flag)(flags); }, 0);
};
exports.combine = combine;
var createMultiFlagHandler = function (fn) { return function () {
    var options = [];
    for (var _i = 0; _i < arguments.length; _i++) {
        options[_i] = arguments[_i];
    }
    return function (flags) {
        if (flags === void 0) { flags = 0; }
        return applyFlagHandler(fn)(combine.apply(void 0, options))(flags);
    };
}; };
var set = createMultiFlagHandler($set);
exports.set = set;
var unset = createMultiFlagHandler($unset);
exports.unset = unset;
var toggle = createMultiFlagHandler($toggle);
exports.toggle = toggle;
var isset = createMultiFlagHandler($isset);
exports.isset = isset;
var settings = set(1, 4, 8)();
console.log(isset(4)(settings));