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node_modules/date-fns/esm/parse/_lib/parsers/LocalWeekYearParser.js

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+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 { parseNDigits, normalizeTwoDigitYear, mapValue } from "../utils.js";
+import getUTCWeekYear from "../../../_lib/getUTCWeekYear/index.js";
+import startOfUTCWeek from "../../../_lib/startOfUTCWeek/index.js";
+// Local week-numbering year
+export var LocalWeekYearParser = /*#__PURE__*/function (_Parser) {
+  _inherits(LocalWeekYearParser, _Parser);
+  var _super = _createSuper(LocalWeekYearParser);
+  function LocalWeekYearParser() {
+    var _this;
+    _classCallCheck(this, LocalWeekYearParser);
+    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', 'Q', 'q', 'M', 'L', 'I', 'd', 'D', 'i', 't', 'T']);
+    return _this;
+  }
+  _createClass(LocalWeekYearParser, [{
+    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, options) {
+      var currentYear = getUTCWeekYear(date, options);
+      if (value.isTwoDigitYear) {
+        var normalizedTwoDigitYear = normalizeTwoDigitYear(value.year, currentYear);
+        date.setUTCFullYear(normalizedTwoDigitYear, 0, options.firstWeekContainsDate);
+        date.setUTCHours(0, 0, 0, 0);
+        return startOfUTCWeek(date, options);
+      }
+      var year = !('era' in flags) || flags.era === 1 ? value.year : 1 - value.year;
+      date.setUTCFullYear(year, 0, options.firstWeekContainsDate);
+      date.setUTCHours(0, 0, 0, 0);
+      return startOfUTCWeek(date, options);
+    }
+  }]);
+  return LocalWeekYearParser;
+}(Parser);