pxt-core/built/web/pxtsim.js

Microsoft MakeCode provides Blocks / JavaScript / Python tools and editors

var pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim,pxsim;!function(e){!function(t){let n,s=!1;function i(e){const t=window.navigator&&/Mac/i.test(window.navigator.platform)?e.metaKey:e.ctrlKey;return"Escape"===e.key?(e.preventDefault(),"escape"):"/"===e.key&&t?(e.preventDefault(),"togglekeyboardcontrolshelp"):"b"===e.key&&t?(e.preventDefault(),"toggleareamenu"):null}t.makeFocusable=function(e){e.setAttribute("focusable","true"),e.setAttribute("tabindex","0")},t.getGlobalAction=i,t.postKeyboardEvent=function(){s||(s=!0,document.addEventListener("keydown",(t=>{const n=i(t);if(n){const t={type:"action",action:n};e.Runtime.postMessage(t)}})))},t.enableKeyboardInteraction=function(e,t,n){t&&e.addEventListener("keydown",(e=>{const n="number"==typeof e.which?e.which:e.keyCode;32!==n&&13!==n||t()})),n&&e.addEventListener("keyup",(e=>{const t="number"==typeof e.which?e.which:e.keyCode;32!==t&&13!==t||n()}))},t.setAria=function(e,t,n){t&&!e.hasAttribute("role")&&e.setAttribute("role",t),n&&!e.hasAttribute("aria-label")&&e.setAttribute("aria-label",n)},t.setLiveContent=function(e){if(!n){let e="position: absolute !important;display: block;visibility: visible;overflow: hidden;width: 1px;height: 1px;margin: -1px;border: 0;padding: 0;clip: rect(0 0 0 0);";n=document.createElement("div"),n.setAttribute("role","status"),n.setAttribute("aria-live","polite"),n.setAttribute("aria-hidden","false"),n.setAttribute("style",e),document.body.appendChild(n)}n.textContent!==e&&(n.textContent=e)}}(e.accessibility||(e.accessibility={}))}(pxsim||(pxsim={})),function(e){const t="blue",n="red",s="orange";const i=e=>(e=>e.reduce(((e,t)=>e+(t?1:0)),0))(e)>0;function r(e,t){let n={};for(let t in e)n[t]=e[t];for(let e in t)n[e]=t[e];return n}function o(t){e.U.assert(!!t,"Invalid pin: "+t);const n=/^(\w+)\.\s*(?:[a-z]*)?([A-Z][A-Z\d_]+)$/.exec(t);return n?n[2]:void 0}function a(e){return"-Z"===e.orientation&&"male"===e.style}e.readPin=o;class l{constructor(t){this.availablePowerPins={top:{fiveVolt:e.mkRange(26,51).map((e=>({type:"breadboard",row:"+",col:`${e}`}))),threeVolt:e.mkRange(26,51).map((e=>({type:"breadboard",row:"+",col:`${e}`}))),ground:e.mkRange(26,51).map((e=>({type:"breadboard",row:"-",col:`${e}`})))},bottom:{fiveVolt:e.mkRange(1,26).map((e=>({type:"breadboard",row:"+",col:`${e}`}))),threeVolt:e.mkRange(1,26).map((e=>({type:"breadboard",row:"+",col:`${e}`}))),ground:e.mkRange(1,26).map((e=>({type:"breadboard",row:"-",col:`${e}`})))}},this.opts=t}allocPartIRs(t,n,s){let i=[];const r=(t,n,i,r)=>{let o=[];for(let n=0;n<t.numberOfPins;n++){let r,a=t.pinDefinitions[n];if("string"==typeof a.target)r=a.target;else{let t=a.target.pinInstantiationIdx;if(!i||void 0===i[t])return void e.log(`error: parts no pin found for PinInstantiationIdx: ${t}. (Is the part missing an ArgumentRole or "trackArgs=" annotations?)`);r=i[t]}let l=t.visual.pinLocations[n],u=s.yOffset+l.y,c=Math.round(u/t.visual.pinDistance),h=u-c*t.visual.pinDistance,d=s.xOffset+l.x,p=Math.round(d/t.visual.pinDistance),m={partRelativeRowIdx:c,partRelativeColIdx:p,xOffset:d-p*t.visual.pinDistance,yOffset:h};o.push({def:a,loc:l,target:r,bbFit:m})}return{name:n,def:t,pins:o,partParams:r||{},bbFit:s}},a=t.instantiations||[];return t.instantiation&&a.push(t.instantiation),a.forEach((s=>{if("singleton"===s.kind)i.push(r(t,n));else if("function"===s.kind){let a=s,l=a.fullyQualifiedName.split(","),u={};l.forEach((e=>{this.opts.fnArgs[e]&&this.opts.fnArgs[e].forEach((e=>{u[e]=1}))}));let c=Object.keys(u);if(!c||!c.length)return void e.log(`error: parts failed to read pin(s) from callsite for: ${l}`);c.forEach((s=>{const u=s.split(",");if(u.length!=a.argumentRoles.length)return void e.log(`error: parts mismatch between number of arguments at callsite (function name: ${l}) vs number of argument roles in part definition (part: ${n}).`);let c=[],h={};u.forEach(((e,t)=>{let n=a.argumentRoles[t];if(void 0!==n.partParameter&&(h[n.partParameter]=e),void 0!==n.pinInstantiationIdx){let t=n.pinInstantiationIdx,s=o(e);c[t]=s}})),i.push(r(t,n,c,h))}))}})),i.filter((e=>!!e))}computePartDimensions(t,n){let s=t.visual.pinLocations,i=t.pinDefinitions,o=t.numberOfPins;e.U.assert(s.length===o,`Mismatch between "numberOfPins" and length of "visual.pinLocations" for "${n}"`),e.U.assert(i.length===o,`Mismatch between "numberOfPins" and length of "pinDefinitions" for "${n}"`),e.U.assert(o>0,`Part "${n}" has no pins`);let a,l,u,c,h=s.map(((e,t)=>{return n={idx:t},s=e,o=i[t],r(r(n,s),o);var n,s,o})).filter((e=>"-Z"===e.orientation)),d=h.length>0,p=t.visual.pinDistance;if(d){let e=h[0],n=Math.ceil(e.x/p),s=Math.ceil(e.y/p);a=n*p-e.x,l=s*p-e.y,u=Math.ceil((a+t.visual.width)/p)+1,c=Math.ceil((l+t.visual.height)/p)+1}else u=Math.ceil(t.visual.width/p),c=Math.ceil(t.visual.height/p),a=u*p-t.visual.width,l=c*p-t.visual.height;return{xOffset:a,yOffset:l,rowCount:c,colCount:u}}allocColumns(t){let n=t.length;let s=e.visuals.BREADBOARD_MID_COLS-t.map((e=>e.colCount)).reduce(((e,t)=>e+t),0);s<=0&&e.log("Not enough breadboard space!");let i=Math.floor(s/(n-1+2)),r=s-i*(n-1),o=Math.floor(r/2),a=(Math.ceil(r/2),1+o);return t.map((e=>{let t=a;return a+=e.colCount+i,t}))}placeParts(t){const n=e.visuals.BREADBOARD_MID_ROWS+2;let s=this.allocColumns(t.map((e=>e.bbFit))),i=t.map((e=>{let t=n-e.bbFit.rowCount,s=Math.floor(t/2);return s>4&&(s=4),s<1&&(s=1),s}));return t.map(((e,t)=>{let n=i[t];return r({startColumnIdx:s[t],startRowIdx:n},e)}))}nextColor(){return(!this.availableWireColors||this.availableWireColors.length<=0)&&(this.availableWireColors=e.visuals.GPIO_WIRE_COLORS.map((e=>e))),this.availableWireColors.pop()}allocWireIRs(i){let o=[],l=i.pins.map(((r,l)=>{let u,c,h=r.target,d=i.startColumnIdx+r.bbFit.partRelativeColIdx,p=e.visuals.getColumnName(d),m=i.startRowIdx+r.bbFit.partRelativeRowIdx;if(m>=7&&(m-=2),a(r.def)){u={type:"breadboard",row:m<5?"j":"a",col:p,style:r.def.style}}else{u={type:"breadboard",row:e.visuals.getRowName(m),col:p,xOffset:r.bbFit.xOffset/i.def.visual.pinDistance,yOffset:r.bbFit.yOffset/i.def.visual.pinDistance,style:r.def.style}}return c="ground"===h?t:"threeVolt"===h?n:"fiveVolt"===h?s:"number"==typeof r.def.colorGroup?o[r.def.colorGroup]?o[r.def.colorGroup]:o[r.def.colorGroup]=this.nextColor():this.nextColor(),{start:u,end:h,color:c,pinIdx:l}}));return r(i,{wires:l})}allocLocation(t,n){if("ground"===t||"threeVolt"===t||"fiveVolt"==t){if("ground"===t&&this.powerUsage.singleGround){return{type:"dalboard",pin:this.getBoardGroundPin()}}if("threeVolt"===t&&this.powerUsage.singleThreeVolt){return{type:"dalboard",pin:this.getBoardThreeVoltPin()}}if("fiveVolt"===t&&this.powerUsage.singleFiveVolt){return{type:"dalboard",pin:this.getBoardFiveVoltPin()}}e.U.assert(!!n.referenceBBPin);let s=this.opts.getBBCoord(n.referenceBBPin),i=[this.availablePowerPins.top.ground[0]||this.availablePowerPins.top.threeVolt[0],this.availablePowerPins.bottom.ground[0]||this.availablePowerPins.bottom.threeVolt[0]].map((e=>this.opts.getBBCoord(e)));i[0]&&i[1]||e.debug(`No more available "${t}" locations!`);let r,o=0==e.visuals.findClosestCoordIdx(s,i);o?"ground"===t?r=this.availablePowerPins.top.ground:"threeVolt"===t?r=this.availablePowerPins.top.threeVolt:"fiveVolt"===t&&(r=this.availablePowerPins.top.fiveVolt):"ground"===t?r=this.availablePowerPins.bottom.ground:"threeVolt"===t?r=this.availablePowerPins.bottom.threeVolt:"fiveVolt"===t&&(r=this.availablePowerPins.bottom.fiveVolt);let a=r.map((e=>this.opts.getBBCoord(e))),l=e.visuals.findClosestCoordIdx(s,a),u=r[l];return o?(this.availablePowerPins.top.ground.splice(l,1),this.availablePowerPins.top.threeVolt.splice(l,1)):(this.availablePowerPins.bottom.ground.splice(l,1),this.availablePowerPins.bottom.threeVolt.splice(l,1)),u}if("breadboard"===t.type)return t;if("MOSI"===t||"MISO"===t||"SCK"===t){return this.opts.boardDef.spiPins||e.debug("No SPI pin mappings found!"),{type:"dalboard",pin:this.opts.boardDef.spiPins[t]}}if("SDA"===t||"SCL"===t){return this.opts.boardDef.i2cPins||e.debug("No I2C pin mappings found!"),{type:"dalboard",pin:this.opts.boardDef.i2cPins[t]}}{e.U.assert("string"==typeof t,"Unknown location type: "+t);let n=t,s=this.opts.boardDef.gpioPinMap[n]||n;return s?{type:"dalboard",pin:s}:void e.debug(`unknown pin location for ${n}`)}}getBoardGroundPin(){let t=this.opts.boardDef.groundPins&&this.opts.boardDef.groundPins[0]||null;return t||e.debug("No available ground pin on board!"),t}getBoardThreeVoltPin(){let t=this.opts.boardDef.threeVoltPins&&this.opts.boardDef.threeVoltPins[0]||null;return t||e.debug("No available 3.3V pin on board!"),t}getBoardFiveVoltPin(){let t=this.opts.boardDef.fiveVoltPins&&this.opts.boardDef.fiveVoltPins[0]||null;return t||e.debug("No available 5V pin on board!"),t}allocPowerWires(e){let i=this.getBoardGroundPin(),r=this.getBoardThreeVoltPin(),o=this.getBoardFiveVoltPin();const a={type:"breadboard",row:"-",col:"26"},l={type:"breadboard",row:"-",col:"1"},u={type:"breadboard",row:"-",col:"50"},c={type:"breadboard",row:"-",col:"25"};let h,d;this.opts.boardDef.attachPowerOnRight?(h=u,d=c):(h=a,d=l);let p=[],m=[],f=[];e.bottomGround&&e.topGround&&p.push({start:this.allocLocation("ground",{referenceBBPin:h}),end:this.allocLocation("ground",{referenceBBPin:d}),color:t}),e.topGround?p.push({start:this.allocLocation("ground",{referenceBBPin:h}),end:{type:"dalboard",pin:i},color:t}):e.bottomGround&&p.push({start:this.allocLocation("ground",{referenceBBPin:d}),end:{type:"dalboard",pin:i},color:t}),e.bottomThreeVolt&&e.bottomGround?m.push({start:this.allocLocation("threeVolt",{referenceBBPin:h}),end:this.allocLocation("threeVolt",{referenceBBPin:d}),color:n}):e.bottomFiveVolt&&e.bottomGround&&f.push({start:this.allocLocation("fiveVolt",{referenceBBPin:h}),end:this.allocLocation("fiveVolt",{referenceBBPin:d}),color:s}),e.topThreeVolt?m.push({start:this.allocLocation("threeVolt",{referenceBBPin:h}),end:{type:"dalboard",pin:r},color:n}):e.bottomThreeVolt&&m.push({start:this.allocLocation("threeVolt",{referenceBBPin:d}),end:{type:"dalboard",pin:r},color:s}),e.topFiveVolt&&!e.topThreeVolt?f.push({start:this.allocLocation("fiveVolt",{referenceBBPin:h}),end:{type:"dalboard",pin:o},color:n}):e.bottomFiveVolt&&!e.bottomThreeVolt&&f.push({start:this.allocLocation("fiveVolt",{referenceBBPin:d}),end:{type:"dalboard",pin:o},color:s});let g=[];p.length>0&&g.push({wireIndices:p.map(((e,t)=>t))});let b=p.length;return m.length>0&&g.push({wireIndices:m.map(((e,t)=>t+b))}),f.length>0&&g.push({wireIndices:m.map(((e,t)=>t+b+m.length))}),{wires:p.concat(m).concat(f),assembly:g}}allocWire(e){const t=[e.start,e.end],n=t.map((e=>"ground"===e||"threeVolt"===e||"fiveVolt"===e));let s=t.map(((e,t)=>n[t]?void 0:this.allocLocation(e,{})));if(s=s.map(((e,n)=>{if(e)return e;const i=s[1-n];return this.allocLocation(t[n],{referenceBBPin:i})})),s[0]&&s[1])return{start:s[0],end:s[1],color:e.color}}allocPart(t){let n=t.pins.filter((e=>a(e.def))).map((n=>{let s=t.startRowIdx+n.bbFit.partRelativeRowIdx;s>=7&&(s-=2);let i=e.visuals.getRowName(s),r=t.startColumnIdx+n.bbFit.partRelativeColIdx;return{type:"breadboard",row:i,col:e.visuals.getColumnName(r)}}));return{name:t.name,visual:t.def.visual,bbFit:t.bbFit,startColumnIdx:t.startColumnIdx,startRowIdx:t.startRowIdx,breadboardConnections:n,params:t.partParams,simulationBehavior:t.def.simulationBehavior}}allocAll(){let e=this.opts.partsList.map((e=>({name:e,def:this.opts.partDefs[e]}))).filter((e=>!!e.def));if(e.length>0){let t=e.map((e=>this.computePartDimensions(e.def,e.name))),n=[];e.forEach(((e,s)=>{let i=t[s],r=this.allocPartIRs(e.def,e.name,i);n=n.concat(r)}));const s=this.placeParts(n).map((e=>this.allocWireIRs(e))),r=s.map((e=>e.wires)).reduce(((e,t)=>e.concat(t)),[]).map((e=>function(e){let t=[e.start,e.end],n=t.map((e=>"ground"===e)),s=t.map((e=>"threeVolt"===e)),r=t.map((e=>"fiveVolt"===e)),o=t.map((e=>function(e){let t=!1;if("string"!=typeof e&&"breadboard"===e.type){let n=e.row;t=0<=["a","b","c","d","e"].indexOf(n)}return t}(e))),a=i(n),l=i(s),u=i(r),c=i(o);return{topGround:a&&!c,topThreeVolt:l&&!c,topFiveVolt:u&&!c,bottomGround:a&&c,bottomThreeVolt:l&&c,bottomFiveVolt:u&&c,singleGround:a,singleThreeVolt:l,singleFiveVolt:u}}(e)));this.powerUsage=function(e){const t=e.reduce(((e,t)=>({topGround:e.topGround||t.topGround,topThreeVolt:e.topThreeVolt||t.topThreeVolt,topFiveVolt:e.topFiveVolt||t.topFiveVolt,bottomGround:e.bottomGround||t.bottomGround,bottomThreeVolt:e.bottomThreeVolt||t.bottomThreeVolt,bottomFiveVolt:e.bottomFiveVolt||t.bottomFiveVolt,singleGround:t.singleGround?null===e.singleGround:e.singleGround,singleThreeVolt:t.singleThreeVolt?null===e.singleThreeVolt:e.singleThreeVolt,singleFiveVolt:t.singleFiveVolt?null===e.singleFiveVolt:e.singleFiveVolt})),{topGround:!1,topThreeVolt:!1,topFiveVolt:!1,bottomGround:!1,bottomThreeVolt:!1,bottomFiveVolt:!1,singleGround:null,singleThreeVolt:null,singleFiveVolt:null});return t.singleGround&&(t.topGround=t.bottomGround=!1),t.singleThreeVolt&&(t.topThreeVolt=t.bottomThreeVolt=!1),t.singleFiveVolt&&(t.topFiveVolt=t.bottomFiveVolt=!1),t}(r);const o=this.allocPowerWires(this.powerUsage),a=s.map(((e,t)=>{const n=this.allocPart(e),s=e.wires.map((e=>this.allocWire(e)));if(s.some((e=>!e)))return;const i=[];e.wires.forEach(((e,t)=>{i[e.pinIdx]=t}));return{part:n,wires:s,assembly:e.def.assembly.map((e=>({part:e.part,wireIndices:(e.pinIndices||[]).map((e=>i[e]))})))}})).filter((e=>!!e)),l=[o].concat(a).filter((e=>e.assembly&&e.assembly.length)),u=!l.some((e=>e.part&&e.part.breadboardConnections&&e.part.breadboardConnections.length>0||e.wires&&e.wires.some((e=>"breadboard"==e.end.type&&"croc"!=e.end.style||"breadboard"==e.start.type&&"croc"!=e.start.style))));return{partsAndWires:l,wires:[],parts:[],hideBreadboard:u}}return{partsAndWires:[],wires:[],parts:[]}}}e.allocateDefinitions=function(e){return new l(e).allocAll()}}(pxsim||(pxsim={})),function(e){!function(t){class n{constructor(e){this.seq=0,this.type=e}}t.Message=n;t.Response=class extends n{constructor(e,t){super("response"),this.request_seq=e.seq,this.command=e.command,t?(this.success=!1,this.message=t):this.success=!0}};class s extends n{constructor(e,t){super("event"),this.event=e,t&&(this.body=t)}}t.Event=s;t.Source=class{constructor(e,t,n=0,s,i){this.name=e,this.path=t,this.sourceReference=n,s&&(this.origin=s),i&&(this.adapterData=i)}};t.Scope=class{constructor(e,t,n=!1){this.name=e,this.variablesReference=t,this.expensive=n}};t.StackFrame=class{constructor(e,t,n,s=0,i=0){this.id=e,this.source=n,this.line=s,this.column=i,this.name=t}};t.Thread=class{constructor(e,t){this.id=e,this.name=t||"Thread #"+e}};t.Variable=class{constructor(e,t,n=0,s,i){this.name=e,this.value=t,this.variablesReference=n,"number"==typeof i&&(this.namedVariables=i),"number"==typeof s&&(this.indexedVariables=s)}};t.Breakpoint=class{constructor(e,t,n,s){this.verified=e;const i=this;"number"==typeof t&&(i.line=t),"number"==typeof n&&(i.column=n),s&&(i.source=s)}};t.Module=class{constructor(e,t){this.id=e,this.name=t}};t.CompletionItem=class{constructor(e,t,n=0){this.label=e,this.start=t,this.length=n}};t.StoppedEvent=class extends s{constructor(e,t,n=null){if(super("stopped"),this.body={reason:e,threadId:t},n){this.body.text=n}}};t.ContinuedEvent=class extends s{constructor(e,t){super("continued"),this.body={threadId:e},"boolean"==typeof t&&(this.body.allThreadsContinued=t)}};t.InitializedEvent=class extends s{constructor(){super("initialized")}};t.TerminatedEvent=class extends s{constructor(e){if(super("terminated"),"boolean"==typeof e){this.body={restart:e}}}};t.OutputEvent=class extends s{constructor(e,t="console",n){super("output"),this.body={category:t,output:e},void 0!==n&&(this.body.data=n)}};t.ThreadEvent=class extends s{constructor(e,t){super("thread"),this.body={reason:e,threadId:t}}};t.BreakpointEvent=class extends s{constructor(e,t){super("breakpoint"),this.body={reason:e,breakpoint:t}}};t.ModuleEvent=class extends s{constructor(e,t){super("module"),this.body={reason:e,module:t}}};class i{constructor(){this._pendingRequests={}}start(e){this._sequence=1,this.host=e,this.host.onData((e=>{if("request"===e.type)this.dispatchRequest(e);else if("response"===e.type){const t=e,n=this._pendingRequests[t.seq];n&&(delete this._pendingRequests[t.seq],n(t))}}))}stop(){this.host&&this.host.close()}sendEvent(e){this.send("event",e)}sendResponse(t){t.seq>0?e.error(`attempt to send more than one response for command ${t.command}`):this.send("response",t)}sendRequest(e,n,s,i){const r={command:e};if(n&&Object.keys(n).length>0&&(r.arguments=n),this.send("request",r),i){this._pendingRequests[r.seq]=i;const e=setTimeout((()=>{clearTimeout(e);const n=this._pendingRequests[r.seq];n&&(delete this._pendingRequests[r.seq],n(new t.Response(r,"timeout")))}),s)}}send(e,t){if(t.type=e,t.seq=this._sequence++,this.host){const e=JSON.stringify(t);this.host.send(e)}}dispatchRequest(e){}}t.ProtocolServer=i;class r extends i{constructor(){super(...arguments),this._debuggerLinesStartAt1=!1,this._debuggerColumnsStartAt1=!1,this._clientLinesStartAt1=!0,this._clientColumnsStartAt1=!0}shutdown(){}dispatchRequest(e){const n=new t.Response(e);try{if("initialize"===e.command){let t=e.arguments;if("boolean"==typeof t.linesStartAt1&&(this._clientLinesStartAt1=t.linesStartAt1),"boolean"==typeof t.columnsStartAt1&&(this._clientColumnsStartAt1=t.columnsStartAt1),"path"!==t.pathFormat)this.sendErrorResponse(n,2018,"debug adapter only supports native paths",null);else{const 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|",o(u-i.stops,c-i.us),s+=" ~";const h=parseInt(t[3]);r(h),i.meds.length>10&&i.meds.shift(),i.meds.push(h);const d=i.meds.slice();d.sort(((e,t)=>e-t));const p=d[d.length>>1];s+=" ~~",r(p),i.stops=u,i.us=c,s+="\n"}var a,l;e.log(s)}(t)}}(n=e.pxtcore||(e.pxtcore={}));class p extends u{constructor(){super(...arguments),this.v=void 0}scan(e){e("*",this.v)}gcKey(){return"LOC"}gcSize(){return 2}destroy(){}print(){e.runtime&&e.runtime.refCountingDebug&&e.log(`RefRefLocal id:${this.id} v:${this.v}`)}}e.RefRefLocal=p;class m extends u{constructor(){super(...arguments),this.vtable=e.mkMapVTable(),this.data=[]}scan(e){for(let t of this.data)e(t.key,t.val)}gcKey(){return"{...}"}gcSize(){return 2*this.data.length+4}findIdx(e){e+="";for(let t=0;t<this.data.length;++t)if(this.data[t].key==e)return t;return-1}destroy(){super.destroy();for(let e=0;e<this.data.length;++e)this.data[e].val=0;this.data=[]}print(){e.runtime&&e.runtime.refCountingDebug&&e.log(`RefMap id:${this.id} size:${this.data.length}`)}toDebugString(){let e="RefMap: {";for(let t=0;t<this.data.length;++t)t>0&&(e+=", "),e+=this.data[t].key+": "+u.toDebugString(this.data[t].val);return e+"}"}toA