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- "use strict";window.module=function(t){if(""===t)return window;var i=t.split("."),r=i.pop(),s=module(i.join(".")),e=s[r];return e||(s[r]=e={loaded:!1,pending:[],requires:function(t){return{toRun:function(r){function i(){r(),e.loaded=!0,e.pending.forEach(function(e){e()})}t&&!module(t).loaded?module(t).pending.push(i):i()}}}}),e},Object.extend=function(i){for(var e=1;e<arguments.length;e++)if("object"==typeof arguments[e])for(var t in arguments[e])i[t]=arguments[e][t]},Function.prototype.subclass=function(s){var e=function(){return this.initialize&&this.initialize.apply(this,arguments),this},i=function(){};i.prototype=this.prototype,e.prototype=new i;for(var t=1;t<arguments.length;t++)Object.extend(e.prototype,arguments[t]);var r=s.split("."),n=r.pop();return module(r.join("."))[n]=e,e},function(){var e=document.getElementsByTagName("script"),t=e[e.length-1],i=t.src.replace(/[^\/]*$/,"");t.src.match(/squeak\.min\.js$/)||["vm.js","jit.js","plugins/ADPCMCodecPlugin.js","plugins/B2DPlugin.js","plugins/BitBltPlugin.js","plugins/FFTPlugin.js","plugins/FloatArrayPlugin.js","plugins/GeniePlugin.js","plugins/JPEGReaderPlugin.js","plugins/KedamaPlugin.js","plugins/KedamaPlugin2.js","plugins/Klatt.js","plugins/LargeIntegers.js","plugins/Matrix2x3Plugin.js","plugins/MiscPrimitivePlugin.js","plugins/ScratchPlugin.js","plugins/SoundGenerationPlugin.js","plugins/StarSqueakPlugin.js","plugins/ZipPlugin.js","lib/lz-string.js"].forEach(function(t){var e=document.createElement("script");e.setAttribute("type","text/javascript"),e.setAttribute("src",i+t),document.getElementsByTagName("head")[0].appendChild(e)})}(),module("SqueakJS").requires("users.bert.SqueakJS.vm").toRun(function(){function v(i,l,e){function a(r){i.fullscreen=r,t.style.background=r?"black":"",e.header&&(e.header.style.display=r?"none":""),e.footer&&(e.footer.style.display=r?"none":""),e.fullscreenCheckbox&&(e.fullscreenCheckbox.checked=r),setTimeout(window.onresize,0)}var t=l.parentElement,o="fullscreenchange",s="fullscreenElement",u="fullscreenEnabled";t.requestFullscreen||[{req:t.webkitRequestFullscreen,exit:document.webkitExitFullscreen,evt:"webkitfullscreenchange",elem:"webkitFullscreenElement",enable:"webkitFullscreenEnabled"},{req:t.mozRequestFullScreen,exit:document.mozCancelFullScreen,evt:"mozfullscreenchange",elem:"mozFullScreenElement",enable:"mozFullScreenEnabled"},{req:t.msRequestFullscreen,exit:document.msExitFullscreen,evt:"MSFullscreenChange",elem:"msFullscreenElement",enable:"msFullscreenEnabled"}].forEach(function(e){e.req&&(t.requestFullscreen=e.req,document.exitFullscreen=e.exit,o=e.evt,s=e.elem,u=e.enable)});var r;if(t.requestFullscreen)document.addEventListener(o,function(){a(t==document[s])}),r=function(){document[u]&&t==document[s]!=i.fullscreen&&(i.fullscreen?t.requestFullscreen():document.exitFullscreen())};else{var n=!1;r=function(){(e.header||e.footer)&&n!=i.fullscreen&&(n=i.fullscreen,a(n))}}return e.fullscreenCheckbox&&(e.fullscreenCheckbox.onclick=function(){i.fullscreen=e.fullscreenCheckbox.checked,r()}),r}function c(e){if(e.swapCheckbox){var r=t.squeakImageName||"default",i=JSON.parse(t["squeakSettings:"+r]||"{}");"swapButtons"in i&&(e.swapButtons=i.swapButtons),e.swapCheckbox.checked=e.swapButtons,e.swapCheckbox.onclick=function(){e.swapButtons=e.swapCheckbox.checked,i.swapButtons=e.swapButtons,t["squeakSettings:"+r]=JSON.stringify(i)}}}function n(e,t){var r=e.shiftKey,s=e.ctrlKey&&!e.altKey,n=e.metaKey||e.altKey&&!e.ctrlKey,i=(r?Squeak.Keyboard_Shift:0)+(s?Squeak.Keyboard_Ctrl:0)+(n?Squeak.Keyboard_Cmd:0);return t.buttons=t.buttons&~Squeak.Keyboard_All|i,i}function l(i,t,e){var r=u?i.offsetX:i.layerX,s=u?i.offsetY:i.layerY;e.cursorCanvas.style.left=r+t.offsetLeft+e.cursorOffsetX+"px",e.cursorCanvas.style.top=s+t.offsetTop+e.cursorOffsetY+"px";var n=r*t.width/t.offsetWidth|0,a=s*t.height/t.offsetHeight|0;e.mouseX=Math.max(0,Math.min(e.width,n)),e.mouseY=Math.max(0,Math.min(e.height,a))}function e(r,i,a,e,s,o){if(l(i,a,e),e.vm){var t=e.buttons&Squeak.Mouse_All;switch(r){case"mousedown":switch(i.button||0){case 0:t=Squeak.Mouse_Red;break;cas
- }return this.audioOutContext},startAudioIn:function(e,t){return this.audioInContext?(this.audioInSource.disconnect(),e(this.audioInContext,this.audioInSource)):(navigator.getUserMedia=navigator.getUserMedia||navigator.webkitGetUserMedia||navigator.mozGetUserMedia||navigator.msGetUserMedia,navigator.getUserMedia?void navigator.getUserMedia({audio:!0,toString:function(){return"audio"}},function(i){var t=window.AudioContext||window.webkitAudioContext||window.mozAudioContext||window.msAudioContext;this.audioInContext=t&&new t,this.audioInSource=this.audioInContext.createMediaStreamSource(i),e(this.audioInContext,this.audioInSource)},function(){t("cannot access microphone")}):t("test: audio input not supported"))},stopAudio:function(){this.audioInSource&&this.audioInSource.disconnect()}},"time",{Epoch:Date.UTC(1901,0,1)+6e4*(new Date).getTimezoneOffset(),EpochUTC:Date.UTC(1901,0,1),totalSeconds:function(){return Math.floor((Date.now()-Squeak.Epoch)/1e3)}},"utils",{bytesAsString:function(t){for(var i=[],e=0;e<t.length;e++)i.push(String.fromCharCode(t[e]));return i.join("")}}),Object.subclass("Squeak.Image","about",{about:function(){}},"initializing",{initialize:function(e){this.totalMemory=1e8,this.name=e,this.gcCount=0,this.gcTenured=0,this.gcMilliseconds=0,this.allocationCount=0,this.oldSpaceCount=0,this.newSpaceCount=0,this.hasNewInstances={}},readFromBuffer:function(k,d,b){function O(){if(c){for(var e=v+(a.oldSpaceCount/10|0);c&&e>v;)c.installFromImage(i,q,M,l,N),c=c.nextObject,v++;return b&&b(v/a.oldSpaceCount),!0}return a.specialObjectsArray=g,a.decorateKnownObjects(),a.fixCompiledMethods(),a.fixCompactOops(),!1}function w(){O()?window.setTimeout(w,0):d&&d()}console.log("squeak: reading "+this.name+" ("+k.byteLength+" bytes)"),this.startupTime=Date.now();for(var j=new DataView(k),l=!1,s=0,e=function(){var e=j.getUint32(s,l);return s+=4,e},_=function(t,r){if(5>r){for(var i=[];i.length<t;)i.push(e());return i}var n=new Uint32Array(k,s,t);return s+=4*t,n},B=[6501,6502,6504,6505,68e3,68002,68003],o=0,m=0;;){if(l=!l,s=m,o=e(),B.indexOf(o)>=0)break;if(l||(m+=512),m>512)throw Error("bad image version")}this.version=o;var N=[6505,68003].indexOf(o)>=0;if(this.hasClosures=[6504,6505,68002,68003].indexOf(o)>=0,o>=68e3)throw Error("64 bit images not supported yet");var A=e(),P=e(),p=e(),S=e();this.lastHash=e();e(),e(),e();s+=A-36;for(var n,i={},y=m+A;y+P>s;){var h=0,u=0,r=e();switch(r&Squeak.HeaderTypeMask){case Squeak.HeaderTypeSizeAndClass:h=r>>2,u=e(),r=e();break;case Squeak.HeaderTypeClass:u=r-Squeak.HeaderTypeClass,r=e(),h=r>>2&63;break;case Squeak.HeaderTypeShort:h=r>>2&63,u=r>>12&31;break;case Squeak.HeaderTypeFree:throw Error("Unexpected free block")}h--;var I=s-4-y,F=r>>8&15,x=r>>17&4095,C=_(h,F),t=new Squeak.Object;t.initFromImage(I,u,F,x,C),32>u&&(t.hash|=268435456),n&&(n.nextObject=t),this.oldSpaceCount++,n=t,i[p+I]=t}this.firstOldObject=i[p+4],this.lastOldObject=t,this.oldSpaceBytes=P;var V=i[i[S].bits[Squeak.splOb_CompactClasses]].bits,f=null;for(t=this.firstOldObject,n=null;t;)n=f,f=t.renameFromImage(i,V),n&&(n.nextObject=f),i[p+t.oop]=f,t=t.nextObject;this.firstOldObject=i[p+4],this.lastOldObject=f;var g=i[S],q=i[g.bits[Squeak.splOb_CompactClasses]].bits,M=i[g.bits[Squeak.splOb_ClassFloat]],c=this.firstOldObject,v=0,a=this;if(b)window.setTimeout(w,0);else{for(;O(););d&&d()}},decorateKnownObjects:function(){var e=this.specialObjectsArray.pointers;e[Squeak.splOb_NilObject].isNil=!0,e[Squeak.splOb_TrueObject].isTrue=!0,e[Squeak.splOb_FalseObject].isFalse=!0,e[Squeak.splOb_ClassFloat].isFloatClass=!0,this.compactClasses=this.specialObjectsArray.pointers[Squeak.splOb_CompactClasses].pointers;for(var t=0;t<this.compactClasses.length;t++)this.compactClasses[t].isNil||(this.compactClasses[t].isCompact=!0);Number.prototype.sqInstName||Object.defineProperty(Number.prototype,"sqInstName",{enumerable:!1,value:function(){return this.toString()}})},fixCompactOops:function(){for(var e=this.firstOldObject,t=0;e;){var i=e.hash>268435455,s=!!e.sqClass.isCompact;if(i!==s){var r=0===e.snapshotSize().header;i!==r&&(t+=r?-4:4)}e.hash&=26
- var t=0!==this.nextWakeupTick;this.isIdle=t||!e,this.breakOut()},freeze:function(t){var e;this.frozen=!0,this.breakOutOfInterpreter=function(t){if(!t)throw Error("need function to restart interpreter");return e=t,"frozen"}.bind(this);var i=function(){if(this.frozen=!1,!e)throw Error("no continue function");e(0)}.bind(this);return t&&window.setTimeout(function(){t(i)},0),i},breakOut:function(){this.breakOutOfInterpreter=this.breakOutOfInterpreter||!0},nextByte:function(){return this.methodBytes[this.pc++]},nono:function(){throw Error("Oh No!")},forceInterruptCheck:function(){this.interruptCheckCounter=-1e3},checkForInterrupts:function(){var e=this.primHandler.millisecondClockValue();if(e<this.lastTick&&(this.nextPollTick=e+(this.nextPollTick-this.lastTick),this.breakOutTick=e+(this.breakOutTick-this.lastTick),0!==this.nextWakeupTick&&(this.nextWakeupTick=e+(this.nextWakeupTick-this.lastTick))),this.interruptCheckCounter>-100&&(e-this.lastTick<this.interruptChecksEveryNms?this.interruptCheckCounterFeedBackReset+=10:this.interruptCheckCounterFeedBackReset<=1e3?this.interruptCheckCounterFeedBackReset=1e3:this.interruptCheckCounterFeedBackReset-=12),this.interruptCheckCounter=this.interruptCheckCounterFeedBackReset,this.lastTick=e,this.interruptPending){this.interruptPending=!1;var t=this.specialObjects[Squeak.splOb_TheInterruptSemaphore];t.isNil||this.primHandler.synchronousSignal(t)}if(0!==this.nextWakeupTick&&e>=this.nextWakeupTick){this.nextWakeupTick=0;var t=this.specialObjects[Squeak.splOb_TheTimerSemaphore];t.isNil||this.primHandler.synchronousSignal(t)}if(this.pendingFinalizationSignals>0){var t=this.specialObjects[Squeak.splOb_TheFinalizationSemaphore];this.pendingFinalizationSignals=0,t.isNil||this.primHandler.synchronousSignal(t)}this.primHandler.semaphoresToSignal.length>0&&this.primHandler.signalExternalSemaphores(),!this.method.compiled&&this.compiler&&this.compiler.compile(this.method),e>=this.breakOutTick&&this.breakOut()},extendedPush:function(t){var e=63&t;switch(t>>6){case 0:this.push(this.receiver.pointers[e]);break;case 1:this.push(this.homeContext.pointers[Squeak.Context_tempFrameStart+e]);break;case 2:this.push(this.method.methodGetLiteral(e));break;case 3:this.push(this.method.methodGetLiteral(e).pointers[Squeak.Assn_value])}},extendedStore:function(t){var e=63&t;switch(t>>6){case 0:this.receiver.pointers[e]=this.top();break;case 1:this.homeContext.pointers[Squeak.Context_tempFrameStart+e]=this.top();break;case 2:this.nono();break;case 3:this.method.methodGetLiteral(e).pointers[Squeak.Assn_value]=this.top()}},extendedStorePop:function(t){var e=63&t;switch(t>>6){case 0:this.receiver.pointers[e]=this.pop();break;case 1:this.homeContext.pointers[Squeak.Context_tempFrameStart+e]=this.pop();break;case 2:this.nono();break;case 3:this.method.methodGetLiteral(e).pointers[Squeak.Assn_value]=this.pop()}},doubleExtendedDoAnything:function(t){var e=this.nextByte();switch(t>>5){case 0:this.send(this.method.methodGetSelector(e),31&t,!1);break;case 1:this.send(this.method.methodGetSelector(e),31&t,!0);break;case 2:this.push(this.receiver.pointers[e]);break;case 3:this.push(this.method.methodGetLiteral(e));break;case 4:this.push(this.method.methodGetLiteral(e).pointers[Squeak.Assn_value]);break;case 5:this.receiver.pointers[e]=this.top();break;case 6:this.receiver.pointers[e]=this.pop();break;case 7:this.method.methodGetLiteral(e).pointers[Squeak.Assn_value]=this.top()}},jumpIfTrue:function(t){var e=this.pop();return e.isTrue?void(this.pc+=t):void(e.isFalse||(this.push(e),this.send(this.specialObjects[Squeak.splOb_SelectorMustBeBoolean],0,!1)))},jumpIfFalse:function(t){var e=this.pop();return e.isFalse?void(this.pc+=t):void(e.isTrue||(this.push(e),this.send(this.specialObjects[Squeak.splOb_SelectorMustBeBoolean],0,!1)))},sendSpecial:function(e){this.send(this.specialSelectors[2*e],this.specialSelectors[2*e+1],!1)}},"closures",{pushNewArray:function(i){var s=i>127,e=127&i,r=this.instantiateClass(this.specialObjects[Squeak.splOb_ClassArray],e);if(s){for(var t=0;e>t;t++)r.pointers[t]=this.stackValue(e-t-1);this.popN(e)}
- case 106:return this.primitiveScreenSize(e);case 107:return this.primitiveMouseButtons(e);case 108:return this.primitiveKeyboardNext(e);case 109:return this.primitiveKeyboardPeek(e);case 110:return this.pop2andPushBoolIfOK(this.vm.stackValue(1)===this.vm.stackValue(0));case 111:return this.popNandPushIfOK(1,this.vm.getClass(this.vm.top()));case 112:return this.popNandPushIfOK(1,this.vm.image.bytesLeft());case 113:return this.primitiveQuit(e);case 114:return this.primitiveExitToDebugger(e);case 115:return this.primitiveChangeClass(e);case 116:return this.vm.flushMethodCacheForMethod(this.vm.top());case 117:return this.doNamedPrimitive(e,i);case 118:return this.primitiveDoPrimitiveWithArgs(e);case 119:return this.vm.flushMethodCacheForSelector(this.vm.top());case 120:return!1;case 121:return this.primitiveImageName(e);case 122:return this.primitiveReverseDisplay(e);case 124:return this.popNandPushIfOK(2,this.registerSemaphore(Squeak.splOb_TheLowSpaceSemaphore));case 125:return this.popNandPushIfOK(2,this.setLowSpaceThreshold());case 126:return this.primitiveDeferDisplayUpdates(e);case 127:return this.primitiveShowDisplayRect(e)}else if(256>t)switch(t){case 128:return this.primitiveArrayBecome(e,!0);case 129:return this.popNandPushIfOK(1,this.vm.image.specialObjectsArray);case 130:return this.primitiveFullGC(e);case 131:return this.popNandPushIfOK(1,this.vm.image.partialGC());case 132:return this.pop2andPushBoolIfOK(this.pointsTo(this.stackNonInteger(1),this.vm.top()));case 133:return!0;case 134:return this.popNandPushIfOK(2,this.registerSemaphore(Squeak.splOb_TheInterruptSemaphore));case 135:return this.popNandPushIfOK(1,this.millisecondClockValue());case 136:return this.primitiveSignalAtMilliseconds(e);case 137:return this.popNandPushIfOK(1,this.secondClock());case 138:return this.popNandPushIfOK(1,this.someObject());case 139:return this.popNandPushIfOK(1,this.nextObject(this.vm.top()));case 140:return this.primitiveBeep(e);case 141:return this.primitiveClipboardText(e);case 142:return this.popNandPushIfOK(1,this.makeStString(this.filenameToSqueak(Squeak.vmPath)));case 143:case 144:return this.primitiveShortAtAndPut(e);case 145:return this.primitiveConstantFill(e);case 146:return this.namedPrimitive("JoystickTabletPlugin","primitiveReadJoystick",e);case 147:return this.namedPrimitive("BitBltPlugin","primitiveWarpBits",e);case 148:return this.popNandPushIfOK(1,this.vm.image.clone(this.vm.top()));case 149:return this.primitiveGetAttribute(e);case 150:if(this.oldPrims)return this.primitiveFileAtEnd(e);case 151:if(this.oldPrims)return this.primitiveFileClose(e);case 152:if(this.oldPrims)return this.primitiveFileGetPosition(e);case 153:if(this.oldPrims)return this.primitiveFileOpen(e);case 154:if(this.oldPrims)return this.primitiveFileRead(e);case 155:if(this.oldPrims)return this.primitiveFileSetPosition(e);case 156:if(this.oldPrims)return this.primitiveFileDelete(e);case 157:if(this.oldPrims)return this.primitiveFileSize(e);case 158:if(this.oldPrims)return this.primitiveFileWrite(e);case 159:if(this.oldPrims)return this.primitiveFileRename(e);case 160:if(this.oldPrims)return this.primitiveDirectoryCreate(e);case 161:if(this.oldPrims)return this.primitiveDirectoryDelimitor(e);case 162:if(this.oldPrims)return this.primitiveDirectoryLookup(e);case 163:if(this.oldPrims)return this.primitiveDirectoryDelete(e);break;case 165:case 166:return this.primitiveIntegerAtAndPut(e);case 167:return!1;case 168:return this.primitiveCopyObject(e);case 169:return this.oldPrims?this.primitiveDirectorySetMacTypeAndCreator(e):this.primitiveNotIdentical(e);case 170:if(this.oldPrims)return this.namedPrimitive("SoundPlugin","primitiveSoundStart",e);case 171:if(this.oldPrims)return this.namedPrimitive("SoundPlugin","primitiveSoundStartWithSemaphore",e);case 172:if(this.oldPrims)return this.namedPrimitive("SoundPlugin","primitiveSoundStop",e);case 173:if(this.oldPrims)return this.namedPrimitive("SoundPlugin","primitiveSoundAvailableSpace",e);case 174:if(this.oldPrims)return this.namedPrimitive("SoundPlugin","primitiveSoundPlaySamples",e);case 175:if(th
- if("number"!=typeof t)return!1;if(t!=i.pointersSize())return!1;if(!e.pointers[Squeak.BlockContext_caller].isNil)return!1;this.vm.arrayCopy(i.pointers,0,e.pointers,Squeak.Context_tempFrameStart,t);var s=e.pointers[Squeak.BlockContext_initialIP];return e.pointers[Squeak.Context_instructionPointer]=s,e.pointers[Squeak.Context_stackPointer]=t,e.pointers[Squeak.BlockContext_caller]=this.vm.activeContext,this.vm.popN(r+1),this.vm.newActiveContext(e),!0},primitiveClosureCopyWithCopiedValues:function(){return this.vm.breakNow("primitiveClosureCopyWithCopiedValues"),!1},primitiveClosureValue:function(e){var t=this.vm.stackValue(e),i=t.pointers[Squeak.Closure_numArgs];return e!==i?!1:this.activateNewClosureMethod(t,e)},primitiveClosureValueWithArgs:function(s){var i=this.vm.top(),e=i.pointersSize(),r=this.vm.stackValue(s),n=r.pointers[Squeak.Closure_numArgs];if(e!==n)return!1;this.vm.pop();for(var t=0;e>t;t++)this.vm.push(i.pointers[t]);return this.activateNewClosureMethod(r,e)},primitiveClosureValueNoContextSwitch:function(e){return this.primitiveClosureValue(e)},activateNewClosureMethod:function(i,r){var s=i.pointers[Squeak.Closure_outerContext],o=s.pointers[Squeak.Context_method],e=this.vm.allocateOrRecycleContext(o.methodNeedsLargeFrame()),n=i.pointers.length-Squeak.Closure_firstCopiedValue;e.pointers[Squeak.Context_sender]=this.vm.activeContext,e.pointers[Squeak.Context_instructionPointer]=i.pointers[Squeak.Closure_startpc],e.pointers[Squeak.Context_stackPointer]=r+n,e.pointers[Squeak.Context_method]=s.pointers[Squeak.Context_method],e.pointers[Squeak.Context_closure]=i,e.pointers[Squeak.Context_receiver]=s.pointers[Squeak.Context_receiver];for(var a=Squeak.Context_tempFrameStart,t=0;r>t;t++)e.pointers[a++]=this.vm.stackValue(r-t-1);for(var t=0;n>t;t++)e.pointers[a++]=i.pointers[Squeak.Closure_firstCopiedValue+t];return this.vm.popN(r+1),this.vm.newActiveContext(e),!0}},"scheduling",{primitiveResume:function(){return this.resume(this.vm.top()),!0},primitiveSuspend:function(){var e=this.getScheduler().pointers[Squeak.ProcSched_activeProcess];return this.vm.top()!==e?!1:(this.vm.popNandPush(1,this.vm.nilObj),this.transferTo(this.pickTopProcess()),!0)},getScheduler:function(){var e=this.vm.specialObjects[Squeak.splOb_SchedulerAssociation];return e.pointers[Squeak.Assn_value]},resume:function(e){var t=this.getScheduler().pointers[Squeak.ProcSched_activeProcess],i=t.pointers[Squeak.Proc_priority],r=e.pointers[Squeak.Proc_priority];r>i?(this.putToSleep(t),this.transferTo(e)):this.putToSleep(e)},putToSleep:function(e){var t=e.pointers[Squeak.Proc_priority],i=this.getScheduler().pointers[Squeak.ProcSched_processLists],r=i.pointers[t-1];this.linkProcessToList(e,r)},transferTo:function(e){var t=this.getScheduler(),i=t.pointers[Squeak.ProcSched_activeProcess];t.pointers[Squeak.ProcSched_activeProcess]=e,i.pointers[Squeak.Proc_suspendedContext]=this.vm.activeContext,this.vm.newActiveContext(e.pointers[Squeak.Proc_suspendedContext]),e.pointers[Squeak.Proc_suspendedContext]=this.vm.nilObj,this.vm.reclaimableContextCount=0,this.vm.breakOnContextChanged&&(this.vm.breakOnContextChanged=!1,this.vm.breakNow())},pickTopProcess:function(){var e,t=this.getScheduler().pointers[Squeak.ProcSched_processLists],i=t.pointersSize()-1;do{if(0>i)throw Error("scheduler could not find a runnable process");e=t.pointers[i--]}while(this.isEmptyList(e));return this.removeFirstLinkOfList(e)},linkProcessToList:function(t,e){if(this.isEmptyList(e))e.pointers[Squeak.LinkedList_firstLink]=t;else{var i=e.pointers[Squeak.LinkedList_lastLink];i.pointers[Squeak.Link_nextLink]=t}e.pointers[Squeak.LinkedList_lastLink]=t,t.pointers[Squeak.Proc_myList]=e},isEmptyList:function(e){return e.pointers[Squeak.LinkedList_firstLink].isNil},removeFirstLinkOfList:function(e){var t=e.pointers[Squeak.LinkedList_firstLink],i=e.pointers[Squeak.LinkedList_lastLink];if(t===i)e.pointers[Squeak.LinkedList_firstLink]=this.vm.nilObj,e.pointers[Squeak.LinkedList_lastLink]=this.vm.nilObj;else{var r=t.pointers[Squeak.Link_nextLink];e.pointers[Squeak.LinkedList_firstLink]=r}return t.pointers[Squea
- try{var s=this.js_objectOrGlobal(t),n=this.js_fromStObject(r),a=s[n];e=this.makeStObject(a,t.sqClass)}catch(o){return this.js_setError(o.message)}return this.popNandPushIfOK(i+1,e)},js_primitiveAtPut:function(t){var i=this.stackNonInteger(2),r=this.vm.stackValue(1),e=this.vm.stackValue(0);try{var s=this.js_objectOrGlobal(i),n=this.js_fromStObject(r),a=this.js_fromStObject(e);s[n]=a}catch(o){return this.js_setError(o.message)}return this.popNandPushIfOK(t+1,e)},js_primitiveSqueakAsJSObject:function(e){var t=this.stackNonInteger(1),i=this.vm.stackValue(0);return this.success&&(t.jsObject=i),this.popNIfOK(e)},js_primitiveInitCallbacks:function(e){return this.js_callbackSema=this.stackInteger(0),this.js_activeCallback=null,this.popNIfOK(e)},js_primitiveGetActiveCallbackBlock:function(t){var e=this.js_activeCallback;return e?this.popNandPushIfOK(t,e.block):this.js_setError("No active callback")},js_primitiveGetActiveCallbackArgs:function(r){var n=this.stackNonInteger(r),e=this.js_activeCallback;if(!e)return this.js_setError("No active callback");try{var t=e.block.pointers[Squeak.BlockContext_argumentCount],s=[];"number"!=typeof t&&(t=e.block.pointers[Squeak.Closure_numArgs]);for(var i=0;t>i;i++)s.push(e.args[i]);return this.popNandPushIfOK(r,this.makeStArray(s,n))}catch(a){return this.js_setError(a.message)}},js_primitiveReturnFromCallback:function(e){return 1!==e?!1:this.js_activeCallback?(this.js_activeCallback.result=this.vm.pop(),this.vm.breakOut(),!0):this.js_setError("No active callback")},js_primitiveGetError:function(e){var t=this.makeStObject(this.js_error);return this.js_error=null,this.popNandPushIfOK(e+1,t)},js_setError:function(e){return this.js_error=String(e),!1},js_fromStObject:function(e){if("number"==typeof e)return e;if(e.jsObject)return e.jsObject;if(e.isFloat)return e.float;if(e.isNil)return null;if(e.isTrue)return!0;if(e.isFalse)return!1;if(e.bytes||e.sqClass===this.vm.specialObjects[Squeak.splOb_ClassString])return e.bytesAsString();if(e.sqClass===this.vm.specialObjects[Squeak.splOb_ClassArray])return this.js_fromStArray(e.pointers||[],!0);if(e.sqClass===this.vm.specialObjects[Squeak.splOb_ClassBlockContext]||e.sqClass===this.vm.specialObjects[Squeak.splOb_ClassBlockClosure])return this.js_fromStBlock(e);throw Error("asJSArgument needed for "+e)},js_fromStArray:function(e,r){if(e.length>0&&r&&this.isAssociation(e[0]))return this.js_fromStDict(e);for(var i=[],t=0;t<e.length;t++)i.push(this.js_fromStObject(e[t]));return i},js_fromStDict:function(i){for(var r={},t=0;t<i.length;t++){var e=i[t].pointers;if(!e||2!==e.length)throw Error(e+" is not an Association");var s=this.js_fromStObject(e[0]),n=this.js_fromStObject(e[1]);r[s]=n}return r},js_fromStBlock:function(e){if(!this.js_callbackSema)throw Error("CallbackSemaphore not set");this.vm.reclaimableContextCount=0;var t=this;return function(){return t.js_executeCallback(e,arguments)}},js_executeCallback:function(t,i){if(this.js_activeCallback){if("string"==typeof this.js_activeCallback)throw Error(this.js_activeCallback);return console.error("Callback: already active")}this.js_activeCallback={block:t,args:i,result:null},this.signalSemaphoreWithIndex(this.js_callbackSema),this.vm.forceInterruptCheck();for(var r=Date.now()+500;Date.now()<r&&!this.js_activeCallback.result;)this.vm.interpret();var e=this.js_activeCallback.result;if(this.js_activeCallback=null,e)try{return this.js_fromStObject(e)}catch(s){return e.toString()}else console.error("Callback error: "+(this.vm.frozen?"frozen":"timeout"))},js_objectOrGlobal:function(e){return"jsObject"in e?e.jsObject:window}},"Obsolete",{primitiveFloatArrayAt:function(e){return this.namedPrimitive("FloatArrayPlugin","primitiveAt",e)},primitiveFloatArrayMulFloatArray:function(e){return this.namedPrimitive("FloatArrayPlugin","primitiveMulFloatArray",e)},primitiveFloatArrayAddScalar:function(e){return this.namedPrimitive("FloatArrayPlugin","primitiveAddScalar",e)},primitiveFloatArrayDivFloatArray:function(e){return this.namedPrimitive("FloatArrayPlugin","primitiveDivFloatArray",e)},primitiveFloatArrayDivScalar:function(e)
- },generateJumpIf:function(t,i){var e=this.pc+i;this.debug&&this.generateDebugCode("jump if "+t+" to "+e),this.generateLabel(),this.source.push("var cond = stack[vm.sp--]; if (cond === vm.",t,"Obj) {vm.pc = ",e,"; bytecodes -= ",i,"; "),this.singleStep&&this.source.push("if (vm.breakOutOfInterpreter) return bytecodes + ",e,"; else "),this.source.push("continue}\n","else if (cond !== vm.",!t,"Obj) {vm.sp++; vm.pc = ",this.pc,"; vm.send(vm.specialObjects[25], 0, false); return bytecodes + ",this.pc,"}\n"),this.needsLabel[this.pc]=!0,this.needsLabel[e]=!0,e>this.endPC&&(this.endPC=e)},generateQuickPrim:function(e){switch(this.debug&&this.generateDebugCode("quick prim "+this.specialSelectors[(15&e)+16]),this.generateLabel(),e){case 194:return this.source.push("if (stack[vm.sp].sqClass === vm.specialObjects[7]) stack[vm.sp] = stack[vm.sp].pointersSize();\n","else if (stack[vm.sp].sqClass === vm.specialObjects[6]) stack[vm.sp] = stack[vm.sp].bytesSize();\n","else { vm.pc = ",this.pc,"; vm.sendSpecial(18); if (context !== vm.activeContext || vm.breakOutOfInterpreter !== false) return bytecodes + ",this.pc,"; }\n"),void(this.needsLabel[this.pc]=!0);case 198:return void this.source.push("var cond = stack[vm.sp-1] === stack[vm.sp];\nstack[--vm.sp] = cond ? vm.trueObj : vm.falseObj;\n");case 199:return void this.source.push("stack[vm.sp] = typeof stack[vm.sp] === 'number' ? vm.specialObjects[5] : stack[vm.sp].sqClass;\n");case 200:return this.source.push("vm.pc = ",this.pc,"; if (!vm.primHandler.quickSendOther(rcvr, ",15&e,")) ","{vm.sendSpecial(",(15&e)+16,"); return bytecodes + ",this.pc,"}\n"),this.needsLabel[this.pc]=!0,void(this.needsLabel[this.pc+2]=!0);case 201:case 202:case 203:return this.source.push("vm.pc = ",this.pc,"; if (!vm.primHandler.quickSendOther(rcvr, ",15&e,")) vm.sendSpecial(",(15&e)+16,"); return bytecodes + ",this.pc,";\n"),void(this.needsLabel[this.pc]=!0)}this.source.push("vm.pc = ",this.pc,"; if (!vm.primHandler.quickSendOther(rcvr, ",15&e,"))"," vm.sendSpecial(",(15&e)+16,");\n","if (context !== vm.activeContext || vm.breakOutOfInterpreter !== false) return bytecodes + ",this.pc,";\n","if (vm.pc !== ",this.pc,") throw Error('Huh?');\n"),this.needsBreak=!1,this.needsLabel[this.pc]=!0},generateNumericOp:function(e){switch(this.debug&&this.generateDebugCode("numeric op "+this.specialSelectors[15&e]),this.generateLabel(),this.needsLabel[this.pc]=!0,e){case 176:return void this.source.push("var a = stack[vm.sp - 1], b = stack[vm.sp];\n","if (typeof a === 'number' && typeof b === 'number') {\n"," stack[--vm.sp] = vm.primHandler.signed32BitIntegerFor(a + b);\n","} else { vm.pc = ",this.pc,"; vm.sendSpecial(0); if (context !== vm.activeContext || vm.breakOutOfInterpreter !== false) return bytecodes + ",this.pc,"}\n");case 177:return void this.source.push("var a = stack[vm.sp - 1], b = stack[vm.sp];\n","if (typeof a === 'number' && typeof b === 'number') {\n"," stack[--vm.sp] = vm.primHandler.signed32BitIntegerFor(a - b);\n","} else { vm.pc = ",this.pc,"; vm.sendSpecial(1); if (context !== vm.activeContext || vm.breakOutOfInterpreter !== false) return bytecodes + ",this.pc,"}\n");case 178:return void this.source.push("var a = stack[vm.sp - 1], b = stack[vm.sp];\n","if (typeof a === 'number' && typeof b === 'number') {\n"," stack[--vm.sp] = a < b ? vm.trueObj : vm.falseObj;\n","} else { vm.pc = ",this.pc,"; vm.sendSpecial(2); if (context !== vm.activeContext || vm.breakOutOfInterpreter !== false) return bytecodes + ",this.pc,"}\n");case 179:return void this.source.push("var a = stack[vm.sp - 1], b = stack[vm.sp];\n","if (typeof a === 'number' && typeof b === 'number') {\n"," stack[--vm.sp] = a > b ? vm.trueObj : vm.falseObj;\n","} else { vm.pc = ",this.pc,"; vm.sendSpecial(3); if (context !== vm.activeContext || vm.breakOutOfInterpreter !== false) return bytecodes + ",this.pc,"}\n");case 180:return void this.source.push("var a = stack[vm.sp - 1], b = stack[vm.sp];\n","if (typeof a === 'number' && typeof b === 'number') {\n"," stack[--vm.sp] = a <= b ? vm.trueObj : vm.falseObj;\n","} else { vm.pc = ",this
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