thebe-lite/dist/lib/thebe-lite.min.js

Thebe extension library for WASM kernels via JupyterLite

/*! For license information please see thebe-lite.min.js.LICENSE.txt */
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l.ServerConnection.makeRequest(t,{method:"DELETE"},n);if(204!==i.status)throw await l.ServerConnection.ResponseError.create(i);this._fileChanged.emit({type:"delete",oldValue:{path:e},newValue:null})}async rename(e,t){const n=this.serverSettings,i=this._getUrl(e),s={method:"PATCH",body:JSON.stringify({path:t})},r=await l.ServerConnection.makeRequest(i,s,n);if(200!==r.status)throw await l.ServerConnection.ResponseError.create(r);const o=await r.json();return u.validateContentsModel(o),this._fileChanged.emit({type:"rename",oldValue:{path:e},newValue:o}),o}async save(e,t={}){const n=this.serverSettings,i=this._getUrl(e),s={method:"PUT",body:JSON.stringify(t)},r=await l.ServerConnection.makeRequest(i,s,n);if(200!==r.status&&201!==r.status)throw await l.ServerConnection.ResponseError.create(r);const o=await r.json();return u.validateContentsModel(o),this._fileChanged.emit({type:"save",oldValue:null,newValue:o}),o}async copy(e,t){const n=this.serverSettings,i=this._getUrl(t),s={method:"POST",body:JSON.stringify({copy_from:e})},r=await l.ServerConnection.makeRequest(i,s,n);if(201!==r.status)throw await l.ServerConnection.ResponseError.create(r);const o=await r.json();return u.validateContentsModel(o),this._fileChanged.emit({type:"new",oldValue:null,newValue:o}),o}async createCheckpoint(e){const t=this._getUrl(e,"checkpoints"),n=await l.ServerConnection.makeRequest(t,{method:"POST"},this.serverSettings);if(201!==n.status)throw await l.ServerConnection.ResponseError.create(n);const i=await n.json();return u.validateCheckpointModel(i),i}async listCheckpoints(e){const t=this._getUrl(e,"checkpoints"),n=await l.ServerConnection.makeRequest(t,{},this.serverSettings);if(200!==n.status)throw await l.ServerConnection.ResponseError.create(n);const i=await n.json();if(!Array.isArray(i))throw new Error("Invalid Checkpoint list");for(let e=0;e<i.length;e++)u.validateCheckpointModel(i[e]);return i}async restoreCheckpoint(e,t){const n=this._getUrl(e,"checkpoints",t),i=await l.ServerConnection.makeRequest(n,{method:"POST"},this.serverSettings);if(204!==i.status)throw await l.ServerConnection.ResponseError.create(i)}async deleteCheckpoint(e,t){const n=this._getUrl(e,"checkpoints",t),i=await l.ServerConnection.makeRequest(n,{method:"DELETE"},this.serverSettings);if(204!==i.status)throw await l.ServerConnection.ResponseError.create(i)}_getUrl(...e){const t=e.map((e=>o.URLExt.encodeParts(e))),n=this.serverSettings.baseUrl;return o.URLExt.join(n,this._apiEndpoint,...t)}}t.Drive=h,function(e){e.normalizeExtension=function(e){return e.length>0&&0!==e.indexOf(".")&&(e=`.${e}`),e}}(d||(d={}))},2706:(e,t,n)=>{"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.validateCheckpointModel=t.validateContentsModel=void 0;const i=n(7441);t.validateContentsModel=function(e){(0,i.validateProperty)(e,"name","string"),(0,i.validateProperty)(e,"path","string"),(0,i.validateProperty)(e,"type","string"),(0,i.validateProperty)(e,"created","string"),(0,i.validateProperty)(e,"last_modified","string"),(0,i.validateProperty)(e,"mimetype","object"),(0,i.validateProperty)(e,"content","object"),(0,i.validateProperty)(e,"format","object")},t.validateCheckpointModel=function(e){(0,i.validateProperty)(e,"id","string"),(0,i.validateProperty)(e,"last_modified","string")}},9480:(e,t,n)=>{"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.EventManager=void 0;const i=n(8925),s=n(6049),r=n(8571),o=n(2920),a="api/events";t.EventManager=class{constructor(e={}){var t;this._socket=null,this.serverSettings=null!==(t=e.serverSettings)&&void 0!==t?t:o.ServerConnection.makeSettings(),this._poll=new s.Poll({factory:()=>this._subscribe()}),this._stream=new r.Stream(this),this._poll.start()}get isDisposed(){return this._poll.isDisposed}get stream(){return this._stream}dispose(){if(this.isDisposed)return;this._poll.dispose();const e=this._socket;e&&(this._socket=null,e.onopen=()=>{},e.onerror=()=>{},e.onmessage=()=>{},e.onclose=()=>{},e.close()),r.Signal.clearData(this),this._stream.stop()}async emit(e){const{serverSettings:t}=this,{baseUrl:n}=t,{makeRequest:s,ResponseError:r}=o.ServerConnection,l=i.URLExt.join(n,a),u={body:JSON.stringify(e),method:"POST"},c=await s(l,u,t);if(204!==c.status)throw new r(c)}_subscribe(){return new Promise(((e,t)=>{if(this.isDisposed)return;const{appendToken:n,token:s,WebSocket:r,wsUrl:o}=this.serverSettings;let l=i.URLExt.join(o,a,"subscribe");n&&""!==s&&(l+=`?token=${encodeURIComponent(s)}`);const u=this._socket=new r(l),c=this._stream;u.onclose=()=>t(new Error("EventManager socket closed")),u.onmessage=e=>e.data&&c.emit(JSON.parse(e.data))}))}}},7883:function(e,t,n){"use strict";var i=this&&this.__createBinding||(Object.create?function(e,t,n,i){void 0===i&&(i=n);var s=Object.getOwnPropertyDescriptor(t,n);s&&!("get"in s?!t.__esModule:s.writable||s.configurable)||(s={enumerable:!0,get:function(){return t[n]}}),Object.defineProperty(e,i,s)}:function(e,t,n,i){void 0===i&&(i=n),e[i]=t[n]}),s=this&&this.__exportStar||function(e,t){for(var n in e)"default"===n||Object.prototype.hasOwnProperty.call(t,n)||i(t,e,n)};Object.defineProperty(t,"__esModule",{value:!0}),s(n(3867),t),s(n(2170),t),s(n(8790),t),s(n(9480),t),s(n(973),t),s(n(2946),t),s(n(9740),t),s(n(2920),t),s(n(7668),t),s(n(7780),t),s(n(9040),t),s(n(9191),t),s(n(8053),t),s(n(8683),t)},7489:function(e,t,n){"use strict";var i=this&&this.__createBinding||(Object.create?function(e,t,n,i){void 0===i&&(i=n);var s=Object.getOwnPropertyDescriptor(t,n);s&&!("get"in s?!t.__esModule:s.writable||s.configurable)||(s={enumerable:!0,get:function(){return t[n]}}),Object.defineProperty(e,i,s)}:function(e,t,n,i){void 0===i&&(i=n),e[i]=t[n]}),s=this&&this.__setModuleDefault||(Object.create?function(e,t){Object.defineProperty(e,"default",{enumerable:!0,value:t})}:function(e,t){e.default=t}),r=this&&this.__importStar||function(e){if(e&&e.__esModule)return e;var t={};if(null!=e)for(var n in e)"default"!==n&&Object.prototype.hasOwnProperty.call(e,n)&&i(t,e,n);return s(t,e),t};Object.defineProperty(t,"__esModule",{value:!0}),t.CommHandler=void 0;const o=n(7556),a=r(n(9909));class l extends o.DisposableDelegate{constructor(e,t,n,i){super(i),this._target="",this._id="",this._id=t,this._target=e,this._kernel=n}get commId(){return this._id}get targetName(){return this._target}get onClose(){return this._onClose}set onClose(e){this._onClose=e}get onMsg(){return this._onMsg}set onMsg(e){this._onMsg=e}open(e,t,n=[]){if(this.isDisposed||this._kernel.isDisposed)throw new Error("Cannot open");const i=a.createMessage({msgType:"comm_open",channel:"shell",username:this._kernel.username,session:this._kernel.clientId,content:{comm_id:this._id,target_name:this._target,data:null!=e?e:{}},metadata:t,buffers:n});return this._kernel.sendShellMessage(i,!1,!0)}send(e,t,n=[],i=!0){if(this.isDisposed||this._kernel.isDisposed)throw new Error("Cannot send");const s=a.createMessage({msgType:"comm_msg",channel:"shell",username:this._kernel.username,session:this._kernel.clientId,content:{comm_id:this._id,data:e},metadata:t,buffers:n});return this._kernel.sendShellMessage(s,!1,i)}close(e,t,n=[]){if(this.isDisposed||this._kernel.isDisposed)throw new Error("Cannot close");const i=a.createMessage({msgType:"comm_close",channel:"shell",username:this._kernel.username,session:this._kernel.clientId,content:{comm_id:this._id,data:null!=e?e:{}},metadata:t,buffers:n}),s=this._kernel.sendShellMessage(i,!1,!0),r=this._onClose;return r&&r(a.createMessage({msgType:"comm_close",channel:"iopub",username:this._kernel.username,session:this._kernel.clientId,content:{comm_id:this._id,data:null!=e?e:{}},metadata:t,buffers:n})),this.dispose(),s}}t.CommHandler=l},2456:function(e,t,n){"use strict";var i=this&&this.__createBinding||(Object.create?function(e,t,n,i){void 0===i&&(i=n);var s=Object.getOwnPropertyDescriptor(t,n);s&&!("get"in s?!t.__esModule:s.writable||s.configurable)||(s={enumerable:!0,get:function(){return t[n]}}),Object.defineProperty(e,i,s)}:function(e,t,n,i){void 0===i&&(i=n),e[i]=t[n]}),s=this&&this.__setModuleDefault||(Object.create?function(e,t){Object.defineProperty(e,"default",{enumerable:!0,value:t})}:function(e,t){e.default=t}),r=this&&this.__importStar||function(e){if(e&&e.__esModule)return e;var t={};if(null!=e)for(var n in e)"default"!==n&&Object.prototype.hasOwnProperty.call(e,n)&&i(t,e,n);return s(t,e),t};Object.defineProperty(t,"__esModule",{value:!0}),t.KernelConnection=void 0;const o=n(8925),a=n(5764),l=n(8571),u=n(7883),c=n(7489),d=r(n(9909)),h=n(134),p=r(n(5855)),f=n(2946),m=r(n(8235)),g="_RESTARTING_";class v{constructor(e){var t,n,i,s;this._createSocket=(e=!0)=>{this._errorIfDisposed(),this._clearSocket(),this._updateConnectionStatus("connecting");const t=this.serverSettings,n=o.URLExt.join(t.wsUrl,m.KERNEL_SERVICE_URL,encodeURIComponent(this._id)),i=n.replace(/^((?:\w+:)?\/\/)(?:[^@\/]+@)/,"$1");console.debug(`Starting WebSocket: ${i}`);let s=o.URLExt.join(n,"channels?session_id="+encodeURIComponent(this._clientId));const r=t.token;t.appendToken&&""!==r&&(s+=`&token=${encodeURIComponent(r)}`);const a=e?this._supportedProtocols:[];this._ws=new t.WebSocket(s,a),this._ws.binaryType="arraybuffer";let l=!1;const c=async e=>{var n,i;if(!this._isDisposed){this._reason="",this._model=void 0;try{const n=await m.getKernelModel(this._id,t);this._model=n,"dead"===(null==n?void 0:n.execution_state)?this._updateStatus("dead"):this._onWSClose(e)}catch(t){if(t instanceof u.ServerConnection.NetworkError||503===(null===(n=t.response)||void 0===n?void 0:n.status)||424===(null===(i=t.response)||void 0===i?void 0:i.status)){const t=1e3*_.getRandomIntInclusive(10,30);setTimeout(c,t,e)}else this._reason="Kernel died unexpectedly",this._updateStatus("dead")}}},d=async e=>{l||(l=!0,await c(e))};this._ws.onmessage=this._onWSMessage,this._ws.onopen=this._onWSOpen,this._ws.onclose=d,this._ws.onerror=d},this._onWSOpen=e=>{if(""!==this._ws.protocol&&!this._supportedProtocols.includes(this._ws.protocol))throw console.log("Server selected unknown kernel wire protocol:",this._ws.protocol),this._updateStatus("dead"),new Error(`Unknown kernel wire protocol:  ${this._ws.protocol}`);this._selectedProtocol=this._ws.protocol,this._ws.onclose=this._onWSClose,this._ws.onerror=this._onWSClose,this._updateConnectionStatus("connected")},this._onWSMessage=e=>{let t;try{t=this.serverSettings.serializer.deserialize(e.data,this._ws.protocol),p.validateMessage(t)}catch(e){throw e.message=`Kernel message validation error: ${e.message}`,e}this._kernelSession=t.header.session,this._msgChain=this._msgChain.then((()=>this._handleMessage(t))).catch((e=>{e.message.startsWith("Canceled future for ")&&console.error(e)})),this._anyMessage.emit({msg:t,direction:"recv"})},this._onWSClose=e=>{this.isDisposed||this._reconnect()},this._id="",this._name="",this._status="unknown",this._connectionStatus="connecting",this._kernelSession="",this._isDisposed=!1,this._ws=null,this._username="",this._reconnectLimit=7,this._reconnectAttempt=0,this._reconnectTimeout=null,this._supportedProtocols=Object.values(d.supportedKernelWebSocketProtocols),this._selectedProtocol="",this._futures=new Map,this._comms=new Map,this._targetRegistry=Object.create(null),this._info=new a.PromiseDelegate,this._pendingMessages=[],this._statusChanged=new l.Signal(this),this._connectionStatusChanged=new l.Signal(this),this._disposed=new l.Signal(this),this._iopubMessage=new l.Signal(this),this._anyMessage=new l.Signal(this),this._pendingInput=new l.Signal(this),this._unhandledMessage=new l.Signal(this),this._displayIdToParentIds=new Map,this._msgIdToDisplayIds=new Map,this._msgChain=Promise.resolve(),this._hasPendingInput=!1,this._reason="",this._noOp=()=>{},this._name=e.model.name,this._id=e.model.id,this.serverSettings=null!==(t=e.serverSettings)&&void 0!==t?t:u.ServerConnection.makeSettings(),this._clientId=null!==(n=e.clientId)&&void 0!==n?n:a.UUID.uuid4(),this._username=null!==(i=e.username)&&void 0!==i?i:"",this.handleComms=null===(s=e.handleComms)||void 0===s||s,this._createSocket()}get disposed(){return this._disposed}get statusChanged(){return this._statusChanged}get connectionStatusChanged(){return this._connectionStatusChanged}get iopubMessage(){return this._iopubMessage}get unhandledMessage(){return this._unhandledMessage}get model(){return this._model||{id:this.id,name:this.name,reason:this._reason}}get anyMessage(){return this._anyMessage}get pendingInput(){return this._pendingInput}get id(){return this._id}get name(){return this._name}get username(){return this._username}get clientId(){return this._clientId}get status(){return this._status}get connectionStatus(){return this._connectionStatus}get isDisposed(){return this._isDisposed}get info(){return this._info.promise}get spec(){return this._specPromise||(this._specPromise=f.KernelSpecAPI.getSpecs(this.serverSettings).then((e=>e.kernelspecs[this._name]))),this._specPromise}clone(e={}){return new v({model:this.model,username:this.username,serverSettings:this.serverSettings,handleComms:!1,...e})}dispose(){this.isDisposed||(this._isDisposed=!0,this._disposed.emit(),this._updateConnectionStatus("disconnected"),this._clearKernelState(),this._pendingMessages=[],this._clearSocket(),l.Signal.clearData(this))}sendShellMessage(e,t=!1,n=!0){return this._sendKernelShellControl(h.KernelShellFutureHandler,e,t,n)}sendControlMessage(e,t=!1,n=!0){return this._sendKernelShellControl(h.KernelControlFutureHandler,e,t,n)}_sendKernelShellControl(e,t,n=!1,i=!0){this._sendMessage(t),this._anyMessage.emit({msg:t,direction:"send"});const s=new e((()=>{const e=t.header.msg_id;this._futures.delete(e);const n=this._msgIdToDisplayIds.get(e);n&&(n.forEach((t=>{const n=this._displayIdToParentIds.get(t);if(n){const i=n.indexOf(e);if(-1===i)return;1===n.length?this._displayIdToParentIds.delete(t):(n.splice(i,1),this._displayIdToParentIds.set(t,n))}})),this._msgIdToDisplayIds.delete(e))}),t,n,i,this);return this._futures.set(t.header.msg_id,s),s}_sendMessage(e,t=!0){if("dead"===this.status)throw new Error("Kernel is dead");if((""===this._kernelSession||this._kernelSession===g)&&d.isInfoRequestMsg(e)){if("connected"===this.connectionStatus)return void this._ws.send(this.serverSettings.serializer.serialize(e,this._ws.protocol));throw new Error("Could not send message: status is not connected")}if(t&&this._pendingMessages.length>0)this._pendingMessages.push(e);else if("connected"===this.connectionStatus&&this._kernelSession!==g)this._ws.send(this.serverSettings.serializer.serialize(e,this._ws.protocol));else{if(!t)throw new Error("Could not send message");this._pendingMessages.push(e)}}async interrupt(){if(this.hasPendingInput=!1,"dead"===this.status)throw new Error("Kernel is dead");return m.interruptKernel(this.id,this.serverSettings)}async restart(){if("dead"===this.status)throw new Error("Kernel is dead");this._updateStatus("restarting"),this._clearKernelState(),this._kernelSession=g,await m.restartKernel(this.id,this.serverSettings),await this.reconnect(),this.hasPendingInput=!1}reconnect(){this._errorIfDisposed();const e=new a.PromiseDelegate,t=(n,i)=>{"connected"===i?(e.resolve(),this.connectionStatusChanged.disconnect(t,this)):"disconnected"===i&&(e.reject(new Error("Kernel connection disconnected")),this.connectionStatusChanged.disconnect(t,this))};return this.connectionStatusChanged.connect(t,this),this._reconnectAttempt=0,this._reconnect(),e.promise}async shutdown(){"dead"!==this.status&&await m.shutdownKernel(this.id,this.serverSettings),this.handleShutdown()}handleShutdown(){this._updateStatus("dead"),this.dispose()}async requestKernelInfo(){const e=d.createMessage({msgType:"kernel_info_request",channel:"shell",username:this._username,session:this._clientId,content:{}});let t;try{t=await _.handleShellMessage(this,e)}catch(e){if(this.isDisposed)return;throw e}if(this._errorIfDisposed(),t)return void 0===t.content.status&&(t.content.status="ok"),"ok"!==t.content.status?(this._info.reject("Kernel info reply errored"),t):(this._info.resolve(t.content),this._kernelSession=t.header.session,t)}requestComplete(e){const t=d.createMessage({msgType:"complete_request",channel:"shell",username:this._username,session:this._clientId,content:e});return _.handleShellMessage(this,t)}requestInspect(e){const t=d.createMessage({msgType:"inspect_request",channel:"shell",username:this._username,session:this._clientId,content:e});return _.handleShellMessage(this,t)}requestHistory(e){const t=d.createMessage({msgType:"history_request",channel:"shell",username:this._username,session:this._clientId,content:e});return _.handleShellMessage(this,t)}requestExecute(e,t=!0,n){const i=d.createMessage({msgType:"execute_request",channel:"shell",username:this._username,session:this._clientId,content:{silent:!1,store_history:!0,user_expressions:{},allow_stdin:!0,stop_on_error:!1,...e},metadata:n});return this.sendShellMessage(i,!0,t)}requestDebug(e,t=!0){const n=d.createMessage({msgType:"debug_request",channel:"control",username:this._username,session:this._clientId,content:e});return this.sendControlMessage(n,!0,t)}requestIsComplete(e){const t=d.createMessage({msgType:"is_complete_request",channel:"shell",username:this._username,session:this._clientId,content:e});return _.handleShellMessage(this,t)}requestCommInfo(e){const t=d.createMessage({msgType:"comm_info_request",channel:"shell",username:this._username,session:this._clientId,content:e});return _.handleShellMessage(this,t)}sendInputReply(e,t){const n=d.createMessage({msgType:"input_reply",channel:"stdin",username:this._username,session:this._clientId,content:e});n.parent_header=t,this._sendMessage(n),this._anyMessage.emit({msg:n,direction:"send"}),this.hasPendingInput=!1}createComm(e,t=a.UUID.uuid4()){if(!this.handleComms)throw new Error("Comms are disabled on this kernel connection");if(this._comms.has(t))throw new Error("Comm is already created");const n=new c.CommHandler(e,t,this,(()=>{this._unregisterComm(t)}));return this._comms.set(t,n),n}hasComm(e){return this._comms.has(e)}registerCommTarget(e,t){this.handleComms&&(this._targetRegistry[e]=t)}removeCommTarget(e,t){this.handleComms&&(this.isDisposed||this._targetRegistry[e]!==t||delete this._targetRegistry[e])}registerMessageHook(e,t){var n;const i=null===(n=this._futures)||void 0===n?void 0:n.get(e);i&&i.registerMessageHook(t)}removeMessageHook(e,t){var n;const i=null===(n=this._futures)||void 0===n?void 0:n.get(e);i&&i.removeMessageHook(t)}removeInputGuard(){this.hasPendingInput=!1}async _handleDisplayId(e,t){var n,i;const s=t.parent_header.msg_id;let r=this._displayIdToParentIds.get(e);if(r){const e={header:a.JSONExt.deepCopy(t.header),parent_header:a.JSONExt.deepCopy(t.parent_header),metadata:a.JSONExt.deepCopy(t.metadata),content:a.JSONExt.deepCopy(t.content),channel:t.channel,buffers:t.buffers?t.buffers.slice():[]};e.header.msg_type="update_display_data",await Promise.all(r.map((async t=>{const n=this._futures&&this._futures.get(t);n&&await n.handleMsg(e)})))}if("update_display_data"===t.header.msg_type)return!0;r=null!==(n=this._displayIdToParentIds.get(e))&&void 0!==n?n:[],-1===r.indexOf(s)&&r.push(s),this._displayIdToParentIds.set(e,r);const o=null!==(i=this._msgIdToDisplayIds.get(s))&&void 0!==i?i:[];return-1===o.indexOf(s)&&o.push(s),this._msgIdToDisplayIds.set(s,o),!1}_clearSocket(){null!==this._ws&&(this._ws.onopen=this._noOp,this._ws.onclose=this._noOp,this._ws.onerror=this._noOp,this._ws.onmessage=this._noOp,this._ws.close(),this._ws=null)}_updateStatus(e){this._status!==e&&"dead"!==this._status&&(this._status=e,_.logKernelStatus(this),this._statusChanged.emit(e),"dead"===e&&this.dispose())}_sendPending(){for(;"connected"===this.connectionStatus&&this._kernelSession!==g&&this._pendingMessages.length>0;)this._sendMessage(this._pendingMessages[0],!1),this._pendingMessages.shift()}_clearKernelState(){this._kernelSession="",this._pendingMessages=[],this._futures.forEach((e=>{e.dispose()})),this._comms.forEach((e=>{e.dispose()})),this._msgChain=Promise.resolve(),this._futures=new Map,this._comms=new Map,this._displayIdToParentIds.clear(),this._msgIdToDisplayIds.clear()}_assertCurrentMessage(e){if(this._errorIfDisposed(),e.header.session!==this._kernelSession)throw new Error(`Canceling handling of old message: ${e.header.msg_type}`)}async _handleCommOpen(e){this._assertCurrentMessage(e);const t=e.content,n=new c.CommHandler(t.target_name,t.comm_id,this,(()=>{this._unregisterComm(t.comm_id)}));this._comms.set(t.comm_id,n);try{const i=await _.loadObject(t.target_name,t.target_module,this._targetRegistry);await i(n,e)}catch(e){throw n.close(),console.error("Exception opening new comm"),e}}async _handleCommClose(e){this._assertCurrentMessage(e);const t=e.content,n=this._comms.get(t.comm_id);if(!n)return void console.error("Comm not found for comm id "+t.comm_id);this._unregisterComm(n.commId);const i=n.onClose;i&&await i(e),n.dispose()}async _handleCommMsg(e){this._assertCurrentMessage(e);const t=e.content,n=this._comms.get(t.comm_id);if(!n)return;const i=n.onMsg;i&&await i(e)}_unregisterComm(e){this._comms.delete(e)}_updateConnectionStatus(e){if(this._connectionStatus!==e){if(this._connectionStatus=e,"connecting"!==e&&(this._reconnectAttempt=0,clearTimeout(this._reconnectTimeout)),"dead"!==this.status)if("connected"===e){let e=this._kernelSession===g,t=this.requestKernelInfo(),n=!1,i=()=>{n||(n=!0,e&&this._kernelSession===g&&(this._kernelSession=""),clearTimeout(s),this._pendingMessages.length>0&&this._sendPending())};t.then(i);let s=setTimeout(i,3e3)}else this._updateStatus("unknown");this._connectionStatusChanged.emit(e)}}async _handleMessage(e){var t,n;let i=!1;if(e.parent_header&&"iopub"===e.channel&&(d.isDisplayDataMsg(e)||d.isUpdateDisplayDataMsg(e)||d.isExecuteResultMsg(e))){const n=(null!==(t=e.content.transient)&&void 0!==t?t:{}).display_id;n&&(i=await this._handleDisplayId(n,e),this._assertCurrentMessage(e))}if(!i&&e.parent_header){const t=e.parent_header,i=null===(n=this._futures)||void 0===n?void 0:n.get(t.msg_id);if(i)await i.handleMsg(e),this._assertCurrentMessage(e);else{const n=t.session===this.clientId;"iopub"!==e.channel&&n&&this._unhandledMessage.emit(e)}}if("iopub"===e.channel){switch(e.header.msg_type){case"status":{const t=e.content.execution_state;"restarting"===t&&Promise.resolve().then((async()=>{this._updateStatus("autorestarting"),this._clearKernelState(),await this.reconnect()})),this._updateStatus(t);break}case"comm_open":this.handleComms&&await this._handleCommOpen(e);break;case"comm_msg":this.handleComms&&await this._handleCommMsg(e);break;case"comm_close":this.handleComms&&await this._handleCommClose(e)}this.isDisposed||(this._assertCurrentMessage(e),this._iopubMessage.emit(e))}}_reconnect(){if(this._errorIfDisposed(),clearTimeout(this._reconnectTimeout),this._reconnectAttempt<this._reconnectLimit){this._updateConnectionStatus("connecting");const e=_.getRandomIntInclusive(0,1e3*(Math.pow(2,this._reconnectAttempt)-1));console.warn(`Connection lost, reconnecting in ${Math.floor(e/1e3)} seconds.`);const t=""!==this._selectedProtocol;this._reconnectTimeout=setTimeout(this._createSocket,e,t),this._reconnectAttempt+=1}else this._updateConnectionStatus("disconnected");this._clearSocket()}_errorIfDisposed(){if(this.isDisposed)throw new Error("Kernel connection is disposed")}get hasPendingInput(){return this._hasPendingInput}set hasPendingInput(e){this._hasPendingInput=e,this._pendingInput.emit(e)}}var _;t.KernelConnection=v,function(e){e.logKernelStatus=function(e){switch(e.status){case"idle":case"busy":case"unknown":return;default:console.debug(`Kernel: ${e.status} (${e.id})`)}},e.handleShellMessage=async function(e,t){return e.sendShellMessage(t,!0).done},e.loadObject=function(e,t,n){return new Promise(((i,s)=>{if(t){if("undefined"==typeof requirejs)throw new Error("requirejs not found");requirejs([t],(n=>{void 0===n[e]?s(new Error(`Object '${e}' not found in module '${t}'`)):i(n[e])}),s)}else(null==n?void 0:n[e])?i(n[e]):s(new Error(`Object '${e}' not found in registry`))}))},e.getRandomIntInclusive=function(e,t){return e=Math.ceil(e),t=Math.floor(t),Math.floor(Math.random()*(t-e+1))+e}}(_||(_={}))},134:function(e,t,n){"use strict";var i=this&&this.__createBinding||(Object.create?function(e,t,n,i){void 0===i&&(i=n);var s=Object.getOwnPropertyDescriptor(t,n);s&&!("get"in s?!t.__esModule:s.writable||s.configurable)||(s={enumerable:!0,get:function(){return t[n]}}),Object.defineProperty(e,i,s)}:function(e,t,n,i){void 0===i&&(i=n),e[i]=t[n]}),s=this&&this.__setModuleDefault||(Object.create?function(e,t){Object.defineProperty(e,"default",{enumerable:!0,value:t})}:function(e,t){e.default=t}),r=this&&this.__importStar||function(e){if(e&&e.__esModule)return e;var t={};if(null!=e)for(var n in e)"default"!==n&&Object.prototype.hasOwnProperty.call(e,n)&&i(t,e,n);return s(t,e),t};Object.defineProperty(t,"__esModule",{value:!0}),t.KernelShellFutureHandler=t.KernelControlFutureHandler=t.KernelFutureHandler=void 0;const o=n(5764),a=n(7556),l=r(n(9909));class u extends a.DisposableDelegate{constructor(e,t,n,i,s){super(e),this._status=0,this._stdin=c.noOp,this._iopub=c.noOp,this._reply=c.noOp,this._done=new o.PromiseDelegate,this._hooks=new c.HookList,this._disposeOnDone=!0,this._msg=t,n||this._setFlag(c.KernelFutureFlag.GotReply),this._disposeOnDone=i,this._kernel=s}get msg(){return this._msg}get done(){return this._done.promise}get onReply(){return this._reply}set onReply(e){this._reply=e}get onIOPub(){return this._iopub}set onIOPub(e){this._iopub=e}get onStdin(){return this._stdin}set onStdin(e){this._stdin=e}registerMessageHook(e){if(this.isDisposed)throw new Error("Kernel future is disposed");this._hooks.add(e)}removeMessageHook(e){this.isDisposed||this._hooks.remove(e)}sendInputReply(e,t){this._kernel.sendInputReply(e,t)}dispose(){this._stdin=c.noOp,this._iopub=c.noOp,this._reply=c.noOp,this._hooks=null,this._testFlag(c.KernelFutureFlag.IsDone)||(this._done.promise.catch((()=>{})),this._done.reject(new Error(`Canceled future for ${this.msg.header.msg_type} message before replies were done`))),super.dispose()}async handleMsg(e){switch(e.channel){case"control":case"shell":e.channel===this.msg.channel&&e.parent_header.msg_id===this.msg.header.msg_id&&await this._handleReply(e);break;case"stdin":await this._handleStdin(e);break;case"iopub":await this._handleIOPub(e)}}async _handleReply(e){const t=this._reply;t&&await t(e),this._replyMsg=e,this._setFlag(c.KernelFutureFlag.GotReply),this._testFlag(c.KernelFutureFlag.GotIdle)&&this._handleDone()}async _handleStdin(e){this._kernel.hasPendingInput=!0;const t=this._stdin;t&&await t(e)}async _handleIOPub(e){const t=await this._hooks.process(e),n=this._iopub;t&&n&&await n(e),l.isStatusMsg(e)&&"idle"===e.content.execution_state&&(this._setFlag(c.KernelFutureFlag.GotIdle),this._testFlag(c.KernelFutureFlag.GotReply)&&this._handleDone())}_handleDone(){this._testFlag(c.KernelFutureFlag.IsDone)||(this._setFlag(c.KernelFutureFlag.IsDone),this._done.resolve(this._replyMsg),this._disposeOnDone&&this.dispose())}_testFlag(e){return!!(this._status&e)}_setFlag(e){this._status|=e}}var c;t.KernelFutureHandler=u,t.KernelControlFutureHandler=class extends u{},t.KernelShellFutureHandler=class extends u{},function(e){e.noOp=()=>{};const t="function"==typeof requestAnimationFrame?requestAnimationFrame:setImmediate;let n;e.HookList=class{constructor(){this._hooks=[]}add(e){this.remove(e),this._hooks.push(e)}remove(e){const t=this._hooks.indexOf(e);t>=0&&(this._hooks[t]=null,this._scheduleCompact())}async process(e){await this._processing;const t=new o.PromiseDelegate;let n;this._processing=t.promise;for(let i=this._hooks.length-1;i>=0;i--){const s=this._hooks[i];if(null!==s){try{n=await s(e)}catch(e){n=!0,console.error(e)}if(!1===n)return t.resolve(void 0),!1}}return t.resolve(void 0),!0}_scheduleCompact(){this._compactScheduled||(this._compactScheduled=!0,t((()=>{this._processing=this._processing.then((()=>{this._compactScheduled=!1,this._compact()}))})))}_compact(){let e=0;for(let t=0,n=this._hooks.length;t<n;t++){const n=this._hooks[t];null===this._hooks[t]?e++:this._hooks[t-e]=n}this._hooks.length-=e}},function(e){e[e.GotReply=1]="GotReply",e[e.GotIdle=2]="GotIdle",e[e.IsDone=4]="IsDone",e[e.DisposeOnDone=8]="DisposeOnDone"}(n=e.KernelFutureFlag||(e.KernelFutureFlag={}))}(c||(c={}))},973:function(e,t,n){"use strict";var i=this&&this.__createBinding||(Object.create?function(e,t,n,i){void 0===i&&(i=n);var s=Object.getOwnPropertyDescriptor(t,n);s&&!("get"in s?!t.__esModule:s.writable||s.configurable)||(s={enumerable:!0,get:function(){return t[n]}}),Object.defineProperty(e,i,s)}:function(e,t,n,i){void 0===i&&(i=n),e[i]=t[n]}),s=this&&this.__setModuleDefault||(Object.create?function(e,t){Object.defineProperty(e,"default",{enumerable:!0,value:t})}:function(e,t){e.default=t}),r=this&&this.__importStar||function(e){if(e&&e.__esModule)return e;var t={};if(null!=e)for(var n in e)"default"!==n&&Object.prototype.hasO