app/node_modules/date-fns/esm/parse/_lib/parsers/YearParser.js

import _classCallCheck from "@babel/runtime/helpers/esm/classCallCheck";
import _createClass from "@babel/runtime/helpers/esm/createClass";
import _assertThisInitialized from "@babel/runtime/helpers/esm/assertThisInitialized";
import _inherits from "@babel/runtime/helpers/esm/inherits";
import _createSuper from "@babel/runtime/helpers/esm/createSuper";
import _defineProperty from "@babel/runtime/helpers/esm/defineProperty";
import { Parser } from "../Parser.js";
import { mapValue, normalizeTwoDigitYear, parseNDigits } from "../utils.js";
// From http://www.unicode.org/reports/tr35/tr35-31/tr35-dates.html#Date_Format_Patterns
// | Year     |     y | yy |   yyy |  yyyy | yyyyy |
// |----------|-------|----|-------|-------|-------|
// | AD 1     |     1 | 01 |   001 |  0001 | 00001 |
// | AD 12    |    12 | 12 |   012 |  0012 | 00012 |
// | AD 123   |   123 | 23 |   123 |  0123 | 00123 |
// | AD 1234  |  1234 | 34 |  1234 |  1234 | 01234 |
// | AD 12345 | 12345 | 45 | 12345 | 12345 | 12345 |
export var YearParser = /*#__PURE__*/function (_Parser) {
  _inherits(YearParser, _Parser);
  var _super = _createSuper(YearParser);
  function YearParser() {
    var _this;
    _classCallCheck(this, YearParser);
    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }
    _this = _super.call.apply(_super, [this].concat(args));
    _defineProperty(_assertThisInitialized(_this), "priority", 130);
    _defineProperty(_assertThisInitialized(_this), "incompatibleTokens", ['Y', 'R', 'u', 'w', 'I', 'i', 'e', 'c', 't', 'T']);
    return _this;
  }
  _createClass(YearParser, [{
    key: "parse",
    value: function parse(dateString, token, match) {
      var valueCallback = function valueCallback(year) {
        return {
          year: year,
          isTwoDigitYear: token === 'yy'
        };
      };
      switch (token) {
        case 'y':
          return mapValue(parseNDigits(4, dateString), valueCallback);
        case 'yo':
          return mapValue(match.ordinalNumber(dateString, {
            unit: 'year'
          }), valueCallback);
        default:
          return mapValue(parseNDigits(token.length, dateString), valueCallback);
      }
    }
  }, {
    key: "validate",
    value: function validate(_date, value) {
      return value.isTwoDigitYear || value.year > 0;
    }
  }, {
    key: "set",
    value: function set(date, flags, value) {
      var currentYear = date.getUTCFullYear();
      if (value.isTwoDigitYear) {
        var normalizedTwoDigitYear = normalizeTwoDigitYear(value.year, currentYear);
        date.setUTCFullYear(normalizedTwoDigitYear, 0, 1);
        date.setUTCHours(0, 0, 0, 0);
        return date;
      }
      var year = !('era' in flags) || flags.era === 1 ? value.year : 1 - value.year;
      date.setUTCFullYear(year, 0, 1);
      date.setUTCHours(0, 0, 0, 0);
      return date;
    }
  }]);
  return YearParser;
}(Parser);