@barchart/common-js/dist/cjs/collections/specialized/TimeMap.js

Library of common JavaScript utilities

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) => {
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var __copyProps = (to, from, except, desc) => {
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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-
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  mod
));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var TimeMap_exports = {};
__export(TimeMap_exports, {
  default: () => TimeMap
});
module.exports = __toCommonJS(TimeMap_exports);
var assert = __toESM(require("./../../lang/assert.js"));
var is = __toESM(require("./../../lang/is.js"));
class TimeMap {
  #duration;
  #map;
  /**
   * @param {number} duration - The time to live, in milliseconds.
   */
  constructor(duration) {
    assert.argumentIsValid(duration, "duration", (x) => is.positive(x), "is positive");
    this.#duration = duration;
    this.#map = {};
  }
  /**
   * Returns true, if the map contains the item; otherwise false.
   *
   * @public
   * @param {string} key
   * @returns {boolean}
   */
  has(key) {
    assert.argumentIsRequired(key, "key", String);
    let exists = Object.prototype.hasOwnProperty.call(this.#map, key);
    if (exists) {
      const item = this.#map[key];
      if (!item.valid) {
        this.remove(key);
        exists = false;
      }
    }
    return exists;
  }
  /**
   * Puts an item into the map.
   *
   * @public
   * @param {string} key
   * @param {*} value
   */
  put(key, value) {
    assert.argumentIsRequired(key, "key", String);
    this.#map[key] = new Item(key, value, (/* @__PURE__ */ new Date()).getTime() + this.#duration);
  }
  /**
   * Puts an item into the map.
   *
   * @public
   * @param {string} key
   * @param {*} value
   */
  set(key, value) {
    this.put(key, value);
  }
  /**
   * Gets an item from the map, returning a null value if the no item
   * for the given key exists.
   *
   * @public
   * @param {string} key
   * @returns {*|null}
   */
  get(key) {
    assert.argumentIsRequired(key, "key", String);
    let returnRef = null;
    if (this.has(key)) {
      returnRef = this.#map[key].value;
    }
    return returnRef;
  }
  /**
   * Removes an item from the map.
   *
   * @public
   * @param {string} key
   */
  remove(key) {
    assert.argumentIsRequired(key, "key", String);
    delete this.#map[key];
  }
  /**
   * Removes an item from the map.
   *
   * @public
   * @param {string} key
   */
  delete(key) {
    this.remove(key);
  }
  /**
   * Returns a string representation.
   *
   * @public
   * @returns {string}
   */
  toString() {
    return "[TimeMap]";
  }
}
class Item {
  #key;
  #value;
  #expiration;
  constructor(key, value, expiration) {
    this.#key = key;
    this.#value = value;
    this.#expiration = expiration;
  }
  get key() {
    return this.#key;
  }
  get value() {
    return this.#value;
  }
  get valid() {
    return this.#expiration > (/* @__PURE__ */ new Date()).getTime();
  }
}

{
	const cjsExports = module.exports;
	const cjsDefaultExport = cjsExports && cjsExports.__esModule ? cjsExports.default : cjsExports;

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		Object.keys(cjsExports).forEach((key) => {
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				cjsDefaultExport[key] = cjsExports[key];
			}
		});
	}

	module.exports = cjsDefaultExport;
}