@sequelize/core/lib/utils/dayjs.js

Sequelize is a promise-based Node.js ORM tool for Postgres, MySQL, MariaDB, SQLite, Microsoft SQL Server, Amazon Redshift, Snowflake’s Data Cloud, Db2, and IBM i. It features solid transaction support, relations, eager and lazy loading, read replication a

"use strict";
var __create = Object.create;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __getProtoOf = Object.getPrototypeOf;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
  // If the importer is in node compatibility mode or this is not an ESM
  // file that has been converted to a CommonJS file using a Babel-
  // compatible transform (i.e. "__esModule" has not been set), then set
  // "default" to the CommonJS "module.exports" for node compatibility.
  isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
  mod
));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var dayjs_exports = {};
__export(dayjs_exports, {
  isValidTimeZone: () => isValidTimeZone,
  timeZoneToOffsetString: () => timeZoneToOffsetString
});
module.exports = __toCommonJS(dayjs_exports);
var import_dayjs = __toESM(require("dayjs"));
var import_timezone = __toESM(require("dayjs/plugin/timezone"));
var import_utc = __toESM(require("dayjs/plugin/utc"));
import_dayjs.default.extend(import_utc.default);
import_dayjs.default.extend(import_timezone.default);
const history = /* @__PURE__ */ new Map();
function timeZoneToOffsetString(timeZone) {
  if (isValidTimeZone(timeZone)) {
    return (0, import_dayjs.default)().tz(timeZone).format("Z");
  }
  throw new Error(`Invalid time zone: ${timeZone}`);
}
function isValidTimeZone(tz) {
  if (history.has(tz)) {
    return history.get(tz);
  }
  let status;
  try {
    Intl.DateTimeFormat(void 0, { timeZone: tz });
    status = true;
  } catch {
    status = false;
  }
  history.set(tz, status);
  return status;
}
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