'use strict';Object.defineProperty(exports, "__esModule", { value: true });var _extends = Object.assign || function (target) {for (var i = 1; i < arguments.length; i++) {var source = arguments[i];for (var key in source) {if (Object.prototype.hasOwnProperty.call(source, key)) {target[key] = source[key];}}}return target;};function _defineProperty(obj, key, value) {if (key in obj) {Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true });} else {obj[key] = value;}return obj;} // Copyright 2015-2017 Parity Technologies (UK) Ltd.
// This file is part of Parity.

// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with Parity.  If not, see <http://www.gnu.org/licenses/>.

var initialState = {
  reverse: {} // cache for reverse lookup
};exports.default =

function () {var state = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : initialState;var action = arguments[1];
  if (action.type === 'setReverse') {
    if (state.reverse[action.address] === action.reverse) {
      return state;
    }

    return {
      reverse: _extends({},
      state.reverse, _defineProperty({}, action.address, action.reverse)) };


  }

  return state;
};