lux-framework/src/packages/loader/resolver/index.js

Build scalable, Node.js-powered REST APIs with almost no code.

// @flow
import { FreezeableMap } from '../../freezeable';
import type { Bundle$Namespace, Bundle$NamespaceGroup } from '../index';

/**
 * @private
 */
export function resolve<T>(
  group: Bundle$Namespace<T>
): Bundle$NamespaceGroup<T> {
  return Array
    .from(group)
    .map(([key, value]) => {
      let namespace = key.split('/');

      namespace = namespace
        .slice(0, Math.max(namespace.length - 1, 0))
        .join('/');

      if (namespace) {
        return [
          key.substr(namespace.length + 1),
          value,
          namespace
        ];
      }

      return [
        key,
        value,
        'root'
      ];
    })
    .reduce((map, [key, value, namespace]) => {
      let nsValue = map.get(namespace);

      if (!nsValue) {
        nsValue = new FreezeableMap();
      }

      return map.set(namespace, nsValue.set(key, value));
    }, new FreezeableMap());
}

export { default as closestAncestor } from './utils/closest-ancestor';
export { default as closestChild } from './utils/closest-child';