app/node_modules/date-fns/esm/parse/_lib/parsers/MonthParser.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 { mapValue, parseNDigits, parseNumericPattern } from "../utils.js";
import { Parser } from "../Parser.js";
import { numericPatterns } from "../constants.js";
export var MonthParser = /*#__PURE__*/function (_Parser) {
  _inherits(MonthParser, _Parser);
  var _super = _createSuper(MonthParser);
  function MonthParser() {
    var _this;
    _classCallCheck(this, MonthParser);
    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), "incompatibleTokens", ['Y', 'R', 'q', 'Q', 'L', 'w', 'I', 'D', 'i', 'e', 'c', 't', 'T']);
    _defineProperty(_assertThisInitialized(_this), "priority", 110);
    return _this;
  }
  _createClass(MonthParser, [{
    key: "parse",
    value: function parse(dateString, token, match) {
      var valueCallback = function valueCallback(value) {
        return value - 1;
      };
      switch (token) {
        // 1, 2, ..., 12
        case 'M':
          return mapValue(parseNumericPattern(numericPatterns.month, dateString), valueCallback);
        // 01, 02, ..., 12
        case 'MM':
          return mapValue(parseNDigits(2, dateString), valueCallback);
        // 1st, 2nd, ..., 12th
        case 'Mo':
          return mapValue(match.ordinalNumber(dateString, {
            unit: 'month'
          }), valueCallback);
        // Jan, Feb, ..., Dec
        case 'MMM':
          return match.month(dateString, {
            width: 'abbreviated',
            context: 'formatting'
          }) || match.month(dateString, {
            width: 'narrow',
            context: 'formatting'
          });
        // J, F, ..., D
        case 'MMMMM':
          return match.month(dateString, {
            width: 'narrow',
            context: 'formatting'
          });
        // January, February, ..., December
        case 'MMMM':
        default:
          return match.month(dateString, {
            width: 'wide',
            context: 'formatting'
          }) || match.month(dateString, {
            width: 'abbreviated',
            context: 'formatting'
          }) || match.month(dateString, {
            width: 'narrow',
            context: 'formatting'
          });
      }
    }
  }, {
    key: "validate",
    value: function validate(_date, value) {
      return value >= 0 && value <= 11;
    }
  }, {
    key: "set",
    value: function set(date, _flags, value) {
      date.setUTCMonth(value, 1);
      date.setUTCHours(0, 0, 0, 0);
      return date;
    }
  }]);
  return MonthParser;
}(Parser);