reducers-creator/reducerTreeParser.js

Reducers Creator is an awesome tiny javascript package that allows you to easily and intuitively create reducer functions. Mainly used to create redux reducers.

"use strict";

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _iterableToArrayLimit(arr, i) { var _i = arr == null ? null : typeof Symbol !== "undefined" && arr[Symbol.iterator] || arr["@@iterator"]; if (_i == null) return; var _arr = []; var _n = true; var _d = false; var _s, _e; try { for (_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

/**
 * Copyright (c) 2020-present Ruben Arushanyan (https://github.com/ruben-arushanyan)
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 */
var _require = require('./utils'),
    isFunction = _require.isFunction,
    isObject = _require.isObject;

var reducerTreeParser = function reducerTreeParser(reducer_tree) {
  var reducer_name = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
  var handlers = {};

  var findHandlers = function findHandlers(tree_branch) {
    var prefix = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';

    if (isObject(tree_branch)) {
      for (var _i = 0, _Object$entries = Object.entries(tree_branch); _i < _Object$entries.length; _i++) {
        var _Object$entries$_i = _slicedToArray(_Object$entries[_i], 2),
            key = _Object$entries$_i[0],
            value = _Object$entries$_i[1];

        var type = prefix ? "".concat(prefix, "/").concat(key) : key;

        if (isFunction(value)) {
          handlers[type] = value;

          if (reducer_name) {
            handlers["".concat(reducer_name, "/").concat(type)] = value;
          }
        } else {
          findHandlers(value, type);
        }
      }
    }
  };

  findHandlers(reducer_tree);
  return handlers;
};

module.exports = reducerTreeParser;