taburetkin/marionette.yat

import _ from 'underscore';

function toLabelValues(arg, { swapObjectKeyValues } = {}) {
    if (arg == null) return [];
    if (_.isArray(arg)) {
        return _.map(arg, (value, index) => ({ value, key: value }));
    }
    if (_.isString(arg)) {
        let arr = arg.split(/\s*,\s*/gmi);
        return toLabelValues(arr);
    }
    if (_.isObject(arg)) {
        let mapping = swapObjectKeyValues
            ? (value, key) => ({ value, key })
            : (key, value) => ({ value, key })
        return _.map(arg, mapping);
    }
    return [];
}

export function hasFlags(allflags, expected, options = {}) {
    if (allflags == null || expected == null) return false;
    if (_.isNumber(expected)) {
        if (_.isNumber(allflags)) {
            return options.any ? ((allflags & expected) > 0) : ((allflags & expected) == expected); /* eslint-disable-line */
        } else {
            return false;
        }
    }
    let nAll = toLabelValues(allflags, options);
    let nExpected = toLabelValues(expected, options);
    let method = options.any ? 'some' : 'every';
    return _[method](nAll, kv => _.findWhere(nExpected, { value: kv.value }));
}