bdn-pocket/lib/selector/selector_def.js

pocket tools for managing redux and redux-saga

'use strict';

exports.__esModule = true;
exports.makeIsCacheValid = makeIsCacheValid;

var _it = require('@stamp/it');

var _it2 = _interopRequireDefault(_it);

var _identity = require('ramda/src/identity');

var _identity2 = _interopRequireDefault(_identity);

var _reselect = require('reselect');

var _prop_types = require('../prop_types');

var _prop_types2 = _interopRequireDefault(_prop_types);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function makeIsCacheValid(comparator) {
  var lastResult = void 0;
  return function isCacheValid(result) {
    if (comparator(result, lastResult)) return true;
    lastResult = result;
    return false;
  };
}

function makeSubStateGetter(stamp) {
  var objSelectors = stamp.compose.deepProperties.objSelectors;

  return Object.keys(objSelectors).length > 0 ? (0, _reselect.createStructuredSelector)(objSelectors) : _identity2.default;
}

var SelectorDef = (0, _it2.default)().deepProps({
  objSelectors: {}
}).statics({
  PropTypes: _prop_types2.default,
  propTypes: function propTypes() {
    var _PropTypes;

    return this.statics({
      PropTypes: (_PropTypes = this.PropTypes).propTypes.apply(_PropTypes, arguments)
    });
  },
  selectors: function selectors(objSelectors) {
    var newStamp = this.deepProps({
      objSelectors: objSelectors
    });

    return newStamp.methods({
      getSubState: makeSubStateGetter(newStamp)
    });
  }
}).methods({
  getSubState: _identity2.default
});

exports.default = SelectorDef;