@barchart/common-js/dist/cjs/commands/CommandHandler.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 __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.
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  mod
));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var CommandHandler_exports = {};
__export(CommandHandler_exports, {
  default: () => CommandHandler
});
module.exports = __toCommonJS(CommandHandler_exports);
var assert = __toESM(require("./../lang/assert.js"));
class CommandHandler {
  constructor() {
  }
  /**
   * Execute the action.
   *
   * @public
   * @param {*} data
   * @returns {*}
   */
  process(data) {
    return this._process(data);
  }
  /**
   * @protected
   * @param {*} data
   * @returns {*}
   */
  _process(data) {
    return true;
  }
  /**
   * Returns a string representation.
   *
   * @public
   * @returns {string}
   */
  toString() {
    return "[CommandHandler]";
  }
  /**
   * Returns a function which executes the command.
   *
   * @public
   * @static
   * @param {CommandHandler} commandHandler
   * @returns {Function}
   */
  static toFunction(commandHandler) {
    assert.argumentIsRequired(commandHandler, "commandHandler", CommandHandler, "CommandHandler");
    return (data) => {
      return commandHandler.process(data);
    };
  }
  /**
   * Returns a {@link CommandHandler} that delegates execution to a function.
   *
   * @public
   * @static
   * @param {Function} handler - The function which the command delegates to.
   * @returns {CommandHandler}
   */
  static fromFunction(handler) {
    assert.argumentIsRequired(handler, "handler", Function);
    return new DelegateCommandHandler(handler);
  }
}
class DelegateCommandHandler extends CommandHandler {
  #handler;
  /**
      * @param {Function} handler
      */
  constructor(handler) {
    super();
    this.#handler = handler;
  }
  /**
   * @protected
   * @override
   * @param {*} data
   * @returns {*}
   */
  _process(data) {
    return this.#handler(data);
  }
}

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

	if (cjsDefaultExport && (typeof cjsDefaultExport === 'function' || typeof cjsDefaultExport === 'object')) {
		Object.keys(cjsExports).forEach((key) => {
			if (key !== 'default' && key !== '__esModule') {
				cjsDefaultExport[key] = cjsExports[key];
			}
		});
	}

	module.exports = cjsDefaultExport;
}