{"version":3,"file":"@socket.io-3e1df240.js","sources":["../../node_modules/@socket.io/component-emitter/lib/esm/index.js"],"sourcesContent":["/**\n * Initialize a new `Emitter`.\n *\n * @api public\n */\n\nexport function Emitter(obj) {\n  if (obj) return mixin(obj);\n}\n\n/**\n * Mixin the emitter properties.\n *\n * @param {Object} obj\n * @return {Object}\n * @api private\n */\n\nfunction mixin(obj) {\n  for (var key in Emitter.prototype) {\n    obj[key] = Emitter.prototype[key];\n  }\n  return obj;\n}\n\n/**\n * Listen on the given `event` with `fn`.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.on =\nEmitter.prototype.addEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\n    .push(fn);\n  return this;\n};\n\n/**\n * Adds an `event` listener that will be invoked a single\n * time then automatically removed.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.once = function(event, fn){\n  function on() {\n    this.off(event, on);\n    fn.apply(this, arguments);\n  }\n\n  on.fn = fn;\n  this.on(event, on);\n  return this;\n};\n\n/**\n * Remove the given callback for `event` or all\n * registered callbacks.\n *\n * @param {String} event\n * @param {Function} fn\n * @return {Emitter}\n * @api public\n */\n\nEmitter.prototype.off =\nEmitter.prototype.removeListener =\nEmitter.prototype.removeAllListeners =\nEmitter.prototype.removeEventListener = function(event, fn){\n  this._callbacks = this._callbacks || {};\n\n  // all\n  if (0 == arguments.length) {\n    this._callbacks = {};\n    return this;\n  }\n\n  // specific event\n  var callbacks = this._callbacks['$' + event];\n  if (!callbacks) return this;\n\n  // remove all handlers\n  if (1 == arguments.length) {\n    delete this._callbacks['$' + event];\n    return this;\n  }\n\n  // remove specific handler\n  var cb;\n  for (var i = 0; i < callbacks.length; i++) {\n    cb = callbacks[i];\n    if (cb === fn || cb.fn === fn) {\n      callbacks.splice(i, 1);\n      break;\n    }\n  }\n\n  // Remove event specific arrays for event types that no\n  // one is subscribed for to avoid memory leak.\n  if (callbacks.length === 0) {\n    delete this._callbacks['$' + event];\n  }\n\n  return this;\n};\n\n/**\n * Emit `event` with the given args.\n *\n * @param {String} event\n * @param {Mixed} ...\n * @return {Emitter}\n */\n\nEmitter.prototype.emit = function(event){\n  this._callbacks = this._callbacks || {};\n\n  var args = new Array(arguments.length - 1)\n    , callbacks = this._callbacks['$' + event];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args[i - 1] = arguments[i];\n  }\n\n  if (callbacks) {\n    callbacks = callbacks.slice(0);\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\n      callbacks[i].apply(this, args);\n    }\n  }\n\n  return this;\n};\n\n// alias used for reserved events (protected method)\nEmitter.prototype.emitReserved = Emitter.prototype.emit;\n\n/**\n * Return array of callbacks for `event`.\n *\n * @param {String} event\n * @return {Array}\n * @api public\n */\n\nEmitter.prototype.listeners = function(event){\n  this._callbacks = this._callbacks || {};\n  return this._callbacks['$' + event] || [];\n};\n\n/**\n * Check if this emitter has `event` handlers.\n *\n * @param {String} event\n * @return {Boolean}\n * @api public\n */\n\nEmitter.prototype.hasListeners = function(event){\n  return !! this.listeners(event).length;\n};\n"],"names":["Emitter","obj","mixin","key","event","fn","on","callbacks","cb","args","i","len"],"mappings":"AAMO,SAASA,EAAQC,EAAK,CAC3B,GAAIA,EAAK,OAAOC,EAAMD,CAAG,CAC3B,CAUA,SAASC,EAAMD,EAAK,CAClB,QAASE,KAAOH,EAAQ,UACtBC,EAAIE,CAAG,EAAIH,EAAQ,UAAUG,CAAG,EAElC,OAAOF,CACT,CAWAD,EAAQ,UAAU,GAClBA,EAAQ,UAAU,iBAAmB,SAASI,EAAOC,EAAG,CACtD,YAAK,WAAa,KAAK,YAAc,CAAA,GACpC,KAAK,WAAW,IAAMD,CAAK,EAAI,KAAK,WAAW,IAAMA,CAAK,GAAK,CAAE,GAC/D,KAAKC,CAAE,EACH,IACT,EAYAL,EAAQ,UAAU,KAAO,SAASI,EAAOC,EAAG,CAC1C,SAASC,GAAK,CACZ,KAAK,IAAIF,EAAOE,CAAE,EAClBD,EAAG,MAAM,KAAM,SAAS,CACzB,CAED,OAAAC,EAAG,GAAKD,EACR,KAAK,GAAGD,EAAOE,CAAE,EACV,IACT,EAYAN,EAAQ,UAAU,IAClBA,EAAQ,UAAU,eAClBA,EAAQ,UAAU,mBAClBA,EAAQ,UAAU,oBAAsB,SAASI,EAAOC,EAAG,CAIzD,GAHA,KAAK,WAAa,KAAK,YAAc,CAAA,EAG5B,UAAU,QAAf,EACF,YAAK,WAAa,GACX,KAIT,IAAIE,EAAY,KAAK,WAAW,IAAMH,CAAK,EAC3C,GAAI,CAACG,EAAW,OAAO,KAGvB,GAAS,UAAU,QAAf,EACF,cAAO,KAAK,WAAW,IAAMH,CAAK,EAC3B,KAKT,QADII,EACK,EAAI,EAAG,EAAID,EAAU,OAAQ,IAEpC,GADAC,EAAKD,EAAU,CAAC,EACZC,IAAOH,GAAMG,EAAG,KAAOH,EAAI,CAC7BE,EAAU,OAAO,EAAG,CAAC,EACrB,KACD,CAKH,OAAIA,EAAU,SAAW,GACvB,OAAO,KAAK,WAAW,IAAMH,CAAK,EAG7B,IACT,EAUAJ,EAAQ,UAAU,KAAO,SAASI,EAAM,CACtC,KAAK,WAAa,KAAK,YAAc,CAAA,EAKrC,QAHIK,EAAO,IAAI,MAAM,UAAU,OAAS,CAAC,EACrCF,EAAY,KAAK,WAAW,IAAMH,CAAK,EAElCM,EAAI,EAAGA,EAAI,UAAU,OAAQA,IACpCD,EAAKC,EAAI,CAAC,EAAI,UAAUA,CAAC,EAG3B,GAAIH,EAAW,CACbA,EAAYA,EAAU,MAAM,CAAC,EAC7B,QAASG,EAAI,EAAGC,EAAMJ,EAAU,OAAQG,EAAIC,EAAK,EAAED,EACjDH,EAAUG,CAAC,EAAE,MAAM,KAAMD,CAAI,CAEhC,CAED,OAAO,IACT,EAGAT,EAAQ,UAAU,aAAeA,EAAQ,UAAU,KAUnDA,EAAQ,UAAU,UAAY,SAASI,EAAM,CAC3C,YAAK,WAAa,KAAK,YAAc,CAAA,EAC9B,KAAK,WAAW,IAAMA,CAAK,GAAK,CAAA,CACzC,EAUAJ,EAAQ,UAAU,aAAe,SAASI,EAAM,CAC9C,MAAO,CAAC,CAAE,KAAK,UAAUA,CAAK,EAAE,MAClC","x_google_ignoreList":[0]}