refun/native/utils.js

A collection of React Hook-enabled functions that compose harmoniously with each other. Similar to `recompose`, but:

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.unwindGenerator = exports.generatorIdFactory = exports.shallowEqualByKeys = exports.shallowEquals = void 0;

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

function _createForOfIteratorHelperLoose(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; return function () { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } it = o[Symbol.iterator](); return it.next.bind(it); }

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; }

var shallowEquals = function shallowEquals(a, b) {
  if (a === b) {
    return true;
  }

  for (var key in b) {
    if (a[key] !== b[key]) {
      return false;
    }
  }

  for (var _key in a) {
    if (a[_key] !== b[_key]) {
      return false;
    }
  }

  return true;
};

exports.shallowEquals = shallowEquals;

var shallowEqualByKeys = function shallowEqualByKeys(a, b, keys) {
  if (a === b) {
    return true;
  }

  for (var _iterator = _createForOfIteratorHelperLoose(keys), _step; !(_step = _iterator()).done;) {
    var key = _step.value;

    if (a[key] !== b[key]) {
      return false;
    }
  }

  return true;
};

exports.shallowEqualByKeys = shallowEqualByKeys;

var generatorIdFactory = function generatorIdFactory() {
  var latestId = 0;
  var ids = new Set();

  var switchToGenerator = function switchToGenerator(id) {
    return function () {
      ids.clear();
      ids.add(id);
    };
  };

  var newId = function newId() {
    var id = latestId++;
    ids.add(id);
    return id;
  };

  var isGeneratorRunning = function isGeneratorRunning(id) {
    return ids.has(id);
  };

  return {
    switchToGenerator: switchToGenerator,
    newId: newId,
    isGeneratorRunning: isGeneratorRunning
  };
};

exports.generatorIdFactory = generatorIdFactory;

var unwindGenerator = function unwindGenerator(gen, shouldContinue) {
  var handle = function handle(ir) {
    var value;
    return _regenerator.default.async(function handle$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            if (!ir.done) {
              _context.next = 2;
              break;
            }

            return _context.abrupt("return");

          case 2:
            _context.prev = 2;
            _context.next = 5;
            return _regenerator.default.awrap(ir.value);

          case 5:
            value = _context.sent;

            if (!shouldContinue()) {
              _context.next = 8;
              break;
            }

            return _context.abrupt("return", handle(gen.next(value)));

          case 8:
            gen.return();
            _context.next = 16;
            break;

          case 11:
            _context.prev = 11;
            _context.t0 = _context["catch"](2);

            if (!shouldContinue()) {
              _context.next = 15;
              break;
            }

            return _context.abrupt("return", handle(gen.throw(_context.t0)));

          case 15:
            gen.return();

          case 16:
          case "end":
            return _context.stop();
        }
      }
    }, null, null, [[2, 11]], Promise);
  };

  handle(gen.next());
};

exports.unwindGenerator = unwindGenerator;
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