@platform/state/lib/TreeState/helpers.js

A small, simple, strongly typed, [rx/observable] state-machine.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.helpers = void 0;
var TreeIdentity_1 = require("../TreeIdentity");
var TreeQuery_1 = require("../TreeQuery");
var query = TreeQuery_1.TreeQuery.create;
var id = TreeIdentity_1.TreeIdentity;
exports.helpers = {
    id: id,
    isInstance: function (input) {
        return input === null || typeof input !== 'object' ? false : input._kind === 'TreeState';
    },
    props: function (of, fn) {
        of.props = of.props || {};
        if (typeof fn === 'function') {
            fn(of.props);
        }
        return of.props;
    },
    children: function (of, fn) {
        var children = (of.children = of.children || []);
        if (typeof fn === 'function') {
            fn(children);
        }
        return of.children;
    },
    ensureNamespace: function (root, namespace) {
        query(root).walkDown(function (e) {
            if (!id.hasNamespace(e.node.id)) {
                e.node.id = id.format(namespace, e.node.id);
            }
            else {
                var res = id.parse(e.node.id);
                if (res.namespace !== namespace) {
                    e.skip();
                }
            }
        });
    },
};