Try Dart 1 hour experience first draft

src/site/codelabs/darrrt/examples/6-piratebadge_json/piratebadge.dart.js

 // Generated by dart2js, the Dart to JavaScript compiler.
 // The code supports the following hooks:
 // dartPrint(message)   - if this function is defined it is called
 //                        instead of the Dart [print] method.
 // dartMainRunner(main) - if this function is defined, the Dart [main]
 //                        method will not be invoked directly.
 //                        Instead, a closure that will invoke [main] is
 //                        passed to [dartMainRunner].
 (function($) {
 var A = {};
@@ skipping 47 matching lines @@
 var Z = {};
 delete Z.x;
 function Isolate() {}
 init();
 
 $ = Isolate.$isolateProperties;
 var $$ = {};
 
 // Native classes
 // Method closures
-$$.BoundClosure$2 = [P, {"": "BoundClosure;_self,_target,_receiver,__js_helper$_name",
+$$.BoundClosure$i0 = [H, {"": "BoundClosure;_self,__js_helper$_target,_receiver,__js_helper$_name",
+  call$0: function() {
+    return this.__js_helper$_target.call(this._self, this._receiver);
+  }
+}];
+
+$$.BoundClosure$1 = [H, {"": "BoundClosure;_self,__js_helper$_target,_receiver,__js_helper$_name",
+  call$1: function(p0) {
+    return this.__js_helper$_target.call(this._self, p0);
+  },
+  $is_args1: true
+}];
+
+$$.BoundClosure$2 = [P, {"": "BoundClosure;_self,__js_helper$_target,_receiver,__js_helper$_name",
   call$2: function(p0, p1) {
-    return this._target.call(this._self, p0, p1);
+    return this.__js_helper$_target.call(this._self, p0, p1);
   },
   call$1: function(p0) {
     return this.call$2(p0, null);
   },
-  $is_args2: true
+  $is_args2: true,
+  $is_args1: true
 }];
 
-$$.BoundClosure$0 = [P, {"": "BoundClosure;_self,_target,_receiver,__js_helper$_name",
+$$.BoundClosure$0 = [P, {"": "BoundClosure;_self,__js_helper$_target,_receiver,__js_helper$_name",
   call$0: function() {
-    return this._target.call(this._self);
+    return this.__js_helper$_target.call(this._self);
   }
 }];
 
 $$.Closure$2 = [H, {"": "Closure;call$2,$name", $is_args2: true}];
 
 $$.Closure$0 = [H, {"": "Closure;call$0,$name"}];
 
 $$.Closure$7 = [H, {"": "Closure;call$7,$name"}];
 
-$$.Closure$1 = [H, {"": "Closure;call$1,$name"}];
+$$.Closure$1 = [H, {"": "Closure;call$1,$name", $is_args1: true}];
 
 $$.Closure$21 = [P, {"": "Closure;call$2,$name",
   call$1: function(p0) {
     return this.call$2(p0, null);
   },
-  $is_args2: true
+  $is_args2: true,
+  $is_args1: true
 }];
 
 (function (reflectionData) {
   function map(x){x={x:x};delete x.x;return x}
   if (!init.libraries) init.libraries = [];
   if (!init.mangledNames) init.mangledNames = map();
   if (!init.mangledGlobalNames) init.mangledGlobalNames = map();
   if (!init.statics) init.statics = map();
   if (!init.interfaces) init.interfaces = map();
   if (!init.globalFunctions) init.globalFunctions = map();
@@ skipping 67 matching lines @@
           classes.push(property);
         }
       }
     }
     processStatics(descriptor);
     libraries.push([name, uri, classes, functions, metadata, fields, isRoot,
                     globalObject]);
   }
 })([
 ["_foreign_helper", "dart:_foreign_helper", , H, {
-JS_CONST: {"": "Object;code>"}}],
+JS_CONST: {"": "Object;code"}}],
 ["_interceptors", "dart:_interceptors", , J, {
 getInterceptor: function(object) {
   return void 0;
 },
 
 makeDispatchRecord: function(interceptor, proto, extension, indexability) {
   return {i: interceptor, p: proto, e: extension, x: indexability};
 },
 
 getNativeInterceptor: function(object) {
   var record, proto, objectProto;
   record = object[init.dispatchPropertyName];
+  if (record == null)
+    if ($.initNativeDispatchFlag == null) {
+      H.initNativeDispatch();
+      record = object[init.dispatchPropertyName];
+    }
   if (record != null) {
     proto = record.p;
     if (false === proto)
       return record.i;
     if (true === proto)
       return object;
     objectProto = Object.getPrototypeOf(object);
     if (proto === objectProto)
       return record.i;
     if (record.e === objectProto)
@@ skipping 44 matching lines @@
   get$hashCode: function(_) {
     return 0;
   }
 },
 
 PlainJavaScriptObject: {"": "JavaScriptObject;"},
 
 UnknownJavaScriptObject: {"": "JavaScriptObject;"},
 
 JSArray: {"": "List/Interceptor;",
-  add$1: function(receiver, value) {
-    if (!!receiver.fixed$length)
-      H.throwExpression(P.UnsupportedError$("add"));
-    receiver.push(value);
-  },
-  removeLast$0: function(receiver) {
-    if (!!receiver.fixed$length)
-      H.throwExpression(P.UnsupportedError$("removeLast"));
-    if (receiver.length === 0)
-      throw H.wrapException(P.RangeError$value(-1));
-    return receiver.pop();
-  },
   forEach$1: function(receiver, f) {
     return H.IterableMixinWorkaround_forEach(receiver, f);
   },
   elementAt$1: function(receiver, index) {
     if (index < 0 || index >= receiver.length)
       throw H.ioore(receiver, index);
     return receiver[index];
   },
+  get$isEmpty: function(receiver) {
+    return receiver.length === 0;
+  },
   toString$0: function(receiver) {
     return H.IterableMixinWorkaround_toStringIterable(receiver, "[", "]");
   },
+  toList$1$growable: function(receiver, growable) {
+    return P.List_List$from(receiver, growable, H.getRuntimeTypeArgument(receiver, "JSArray", 0));
+  },
+  toList$0: function($receiver) {
+    return this.toList$1$growable($receiver, true);
+  },
   get$iterator: function(receiver) {
     return new H.ListIterator(receiver, receiver.length, 0, null);
   },
   get$hashCode: function(receiver) {
     return H.Primitives_objectHashCode(receiver);
   },
   get$length: function(receiver) {
     return receiver.length;
   },
   $index: function(receiver, index) {
@@ skipping 22 matching lines @@
   $asJSArray: function() {
     return [null];
   },
   $asList: function() {
     return [null];
   }
 },
 
 JSFixedArray: {"": "JSMutableArray;"},
 
-JSExtendableArray: {"": "JSMutableArray;", $isJSExtendableArray: true},
+JSExtendableArray: {"": "JSMutableArray;"},
 
 JSNumber: {"": "num/Interceptor;",
   remainder$1: function(receiver, b) {
     return receiver % b;
   },
   toInt$0: function(receiver) {
     var t1;
+    if (receiver >= -2147483648 && receiver <= 2147483647)
+      return receiver | 0;
     if (isFinite(receiver)) {
       t1 = receiver < 0 ? Math.ceil(receiver) : Math.floor(receiver);
       return t1 + 0;
     }
     throw H.wrapException(P.UnsupportedError$('' + receiver));
   },
   toString$0: function(receiver) {
     if (receiver === 0 && 1 / receiver < 0)
       return "-0.0";
     else
       return "" + receiver;
   },
   get$hashCode: function(receiver) {
     return receiver & 0x1FFFFFFF;
   },
   $tdiv: function(receiver, other) {
+    if ((receiver | 0) === receiver && (other | 0) === other && 0 !== other && -1 !== other)
+      return receiver / other | 0;
+    else
+      return this._slowTdiv$1(receiver, other);
+  },
+  _slowTdiv$1: function(receiver, other) {
     return this.toInt$0(receiver / other);
   },
   $shr: function(receiver, other) {
     if (other < 0)
-      throw H.wrapException(P.ArgumentError$(other));
+      throw H.wrapException(new P.ArgumentError(other));
     if (receiver > 0) {
       if (other > 31)
         return 0;
       return receiver >>> other;
     }
     if (other > 31)
       other = 31;
     return receiver >> other >>> 0;
   },
   $lt: function(receiver, other) {
     if (typeof other !== "number")
-      throw H.wrapException(P.ArgumentError$(other));
+      throw H.wrapException(new P.ArgumentError(other));
     return receiver < other;
   },
   $gt: function(receiver, other) {
     if (typeof other !== "number")
       throw H.wrapException(new P.ArgumentError(other));
     return receiver > other;
   },
   $ge: function(receiver, other) {
     if (typeof other !== "number")
-      throw H.wrapException(P.ArgumentError$(other));
+      throw H.wrapException(new P.ArgumentError(other));
     return receiver >= other;
   },
-  $isnum: true
+  $isnum: true,
+  static: {
+"": "JSNumber__MIN_INT32,JSNumber__MAX_INT32",
+}
+
 },
 
 JSInt: {"": "int/JSNumber;", $isdouble: true, $isnum: true, $isint: true},
 
 JSDouble: {"": "double/JSNumber;", $isdouble: true, $isnum: true},
 
 JSString: {"": "String/Interceptor;",
   codeUnitAt$1: function(receiver, index) {
     if (index < 0)
       throw H.wrapException(P.RangeError$value(index));
@@ skipping 12 matching lines @@
       throw H.iae(endIndex);
     if (startIndex > endIndex)
       throw H.wrapException(P.RangeError$value(startIndex));
     if (endIndex > receiver.length)
       throw H.wrapException(P.RangeError$value(endIndex));
     return receiver.substring(startIndex, endIndex);
   },
   substring$1: function($receiver, startIndex) {
     return this.substring$2($receiver, startIndex, null);
   },
+  trim$0: function(receiver) {
+    var endIndex, startIndex, codeUnit, endIndex0, endIndex1;
+    for (endIndex = receiver.length, startIndex = 0; startIndex < endIndex;) {
+      if (startIndex >= endIndex)
+        H.throwExpression(P.RangeError$value(startIndex));
+      codeUnit = receiver.charCodeAt(startIndex);
+      if (codeUnit === 32 || codeUnit === 13 || J.JSString__isWhitespace(codeUnit))
+        ++startIndex;
+      else
+        break;
+    }
+    if (startIndex === endIndex)
+      return "";
+    for (endIndex0 = endIndex; true; endIndex0 = endIndex1) {
+      endIndex1 = endIndex0 - 1;
+      if (endIndex1 < 0)
+        H.throwExpression(P.RangeError$value(endIndex1));
+      if (endIndex1 >= endIndex)
+        H.throwExpression(P.RangeError$value(endIndex1));
+      codeUnit = receiver.charCodeAt(endIndex1);
+      if (codeUnit === 32 || codeUnit === 13 || J.JSString__isWhitespace(codeUnit))
+        ;
+      else
+        break;
+    }
+    if (startIndex === 0 && endIndex0 === endIndex)
+      return receiver;
+    return receiver.substring(startIndex, endIndex0);
+  },
   get$isEmpty: function(receiver) {
     return receiver.length === 0;
   },
   toString$0: function(receiver) {
     return receiver;
   },
   get$hashCode: function(receiver) {
     var t1, hash, i;
     for (t1 = receiver.length, hash = 0, i = 0; i < t1; ++i) {
       hash = 536870911 & hash + receiver.charCodeAt(i);
       hash = 536870911 & hash + ((524287 & hash) << 10 >>> 0);
       hash ^= hash >> 6;
     }
     hash = 536870911 & hash + ((67108863 & hash) << 3 >>> 0);
     hash ^= hash >> 11;
     return 536870911 & hash + ((16383 & hash) << 15 >>> 0);
   },
   get$length: function(receiver) {
     return receiver.length;
   },
   $index: function(receiver, index) {
     if (typeof index !== "number" || Math.floor(index) !== index)
       throw H.wrapException(new P.ArgumentError(index));
     if (index >= receiver.length || index < 0)
       throw H.wrapException(P.RangeError$value(index));
     return receiver[index];
   },
-  $isString: true
+  $isString: true,
+  static: {
+JSString__isWhitespace: function(codeUnit) {
+  if (codeUnit < 256)
+    switch (codeUnit) {
+      case 9:
+      case 10:
+      case 11:
+      case 12:
+      case 13:
+      case 32:
+      case 133:
+      case 160:
+        return true;
+      default:
+        return false;
+    }
+  switch (codeUnit) {
+    case 5760:
+    case 6158:
+    case 8192:
+    case 8193:
+    case 8194:
+    case 8195:
+    case 8196:
+    case 8197:
+    case 8198:
+    case 8199:
+    case 8200:
+    case 8201:
+    case 8202:
+    case 8232:
+    case 8233:
+    case 8239:
+    case 8287:
+    case 12288:
+    case 65279:
+      return true;
+    default:
+      return false;
+  }
+}}
+
 }}],
 ["_isolate_helper", "dart:_isolate_helper", , H, {
 _callInIsolate: function(isolate, $function) {
   var result = isolate.eval$1($function);
   $globalState.topEventLoop.run$0();
   return result;
 },
 
 startRootIsolate: function(entry) {
-  var rootContext;
+  var rootContext, t1;
   $globalState = H._Manager$(entry);
   if ($globalState.isWorker === true)
     return;
   rootContext = H._IsolateContext$();
   $globalState.rootContext = rootContext;
   $globalState.currentContext = rootContext;
-  rootContext.eval$1(entry);
+  t1 = J.getInterceptor(entry);
+  if (!!t1.$is_args1)
+    rootContext.eval$1(new H.startRootIsolate_closure(entry));
+  else if (!!t1.$is_args2)
+    rootContext.eval$1(new H.startRootIsolate_closure0(entry));
+  else
+    rootContext.eval$1(entry);
   $globalState.topEventLoop.run$0();
 },
 
 IsolateNatives_computeThisScript: function() {
   var currentScript = init.currentScript;
   if (currentScript != null)
     return String(currentScript.src);
   if (typeof version == "function" && typeof os == "object" && "system" in os)
     return H.IsolateNatives_computeThisScriptD8();
   if (typeof version == "function" && typeof system == "function")
@@ skipping 12 matching lines @@
   matches = stack.match(new RegExp("^ *at [^(]*\\((.*):[0-9]*:[0-9]*\\)$", "m"));
   if (matches != null)
     return matches[1];
   matches = stack.match(new RegExp("^[^@]*@(.*):[0-9]*$", "m"));
   if (matches != null)
     return matches[1];
   throw H.wrapException(P.UnsupportedError$("Cannot extract URI from \"" + stack + "\""));
 },
 
 IsolateNatives__processWorkerMessage: function(sender, e) {
-  var msg, t1, functionName, entryPoint, replyTo, context, t2;
+  var msg, t1, functionName, entryPoint, args, message, isSpawnUri, replyTo, context, t2;
   msg = H._deserializeMessage(e.data);
   t1 = J.getInterceptor$asx(msg);
   switch (t1.$index(msg, "command")) {
     case "start":
       $globalState.currentManagerId = t1.$index(msg, "id");
       functionName = t1.$index(msg, "functionName");
       entryPoint = functionName == null ? $globalState.entry : init.globalFunctions[functionName];
+      args = t1.$index(msg, "args");
+      message = H._deserializeMessage(t1.$index(msg, "msg"));
+      isSpawnUri = t1.$index(msg, "isSpawnUri");
       replyTo = H._deserializeMessage(t1.$index(msg, "replyTo"));
       context = H._IsolateContext$();
-      $globalState.topEventLoop.events._add$1(new H._IsolateEvent(context, new H.IsolateNatives__processWorkerMessage_closure(entryPoint, replyTo), "worker-start"));
+      $globalState.topEventLoop.events._add$1(new H._IsolateEvent(context, new H.IsolateNatives__processWorkerMessage_closure(entryPoint, args, message, isSpawnUri, replyTo), "worker-start"));
       $globalState.currentContext = context;
       $globalState.topEventLoop.run$0();
       break;
     case "spawn-worker":
-      H.IsolateNatives__spawnWorker(t1.$index(msg, "functionName"), t1.$index(msg, "uri"), t1.$index(msg, "replyPort"));
+      H.IsolateNatives__spawnWorker(t1.$index(msg, "functionName"), t1.$index(msg, "uri"), t1.$index(msg, "args"), t1.$index(msg, "msg"), t1.$index(msg, "isSpawnUri"), t1.$index(msg, "replyPort"));
       break;
     case "message":
       if (t1.$index(msg, "port") != null)
-        t1.$index(msg, "port").send$2(t1.$index(msg, "msg"), t1.$index(msg, "replyTo"));
+        J.send$1$x(t1.$index(msg, "port"), t1.$index(msg, "msg"));
       $globalState.topEventLoop.run$0();
       break;
     case "close":
       t1 = $globalState.managers;
       t2 = $.get$IsolateNatives_workerIds();
       t1.remove$1(t1, t2.$index(t2, sender));
       sender.terminate();
       $globalState.topEventLoop.run$0();
       break;
     case "log":
@@ skipping 25 matching lines @@
     try {
       $.get$globalThis().console.log(msg);
     } catch (exception) {
       H.unwrapException(exception);
       trace = new H._StackTrace(exception, null);
       throw H.wrapException(P.Exception_Exception(trace));
     }
 
 },
 
-IsolateNatives__startIsolate: function(topLevel, replyTo) {
+IsolateNatives__startIsolate: function(topLevel, args, message, isSpawnUri, replyTo) {
   var t1;
   H.Primitives_initializeStatics($globalState.currentContext.id);
   $.lazyPort = H.ReceivePortImpl$();
-  t1 = P._Isolate_port();
+  t1 = $.lazyPort;
   t1.toString;
-  replyTo.send$2("spawned", new H._NativeJsSendPort(t1, $globalState.currentContext.id));
-  topLevel.call$0();
+  J.send$1$x(replyTo, ["spawned", new H._NativeJsSendPort(t1, $globalState.currentContext.id)]);
+  if (isSpawnUri !== true)
+    topLevel.call$1(message);
+  else {
+    t1 = J.getInterceptor(topLevel);
+    if (!!t1.$is_args2)
+      topLevel.call$2(args, message);
+    else if (!!t1.$is_args1)
+      topLevel.call$1(args);
+    else
+      topLevel.call$0();
+  }
 },
 
-IsolateNatives__spawnWorker: function(functionName, uri, replyPort) {
+IsolateNatives__spawnWorker: function(functionName, uri, args, message, isSpawnUri, replyPort) {
   var worker, t1, workerId;
   if (uri == null)
     uri = $.get$IsolateNatives_thisScript();
   worker = new Worker(uri);
   worker.onmessage = function(e) { H.IsolateNatives__processWorkerMessage$closure.call$2(worker, e); };
   t1 = $globalState;
   workerId = t1.nextManagerId;
   t1.nextManagerId = workerId + 1;
   t1 = $.get$IsolateNatives_workerIds();
   t1.$indexSet(t1, worker, workerId);
   t1 = $globalState.managers;
   t1.$indexSet(t1, workerId, worker);
-  worker.postMessage(H._serializeMessage(H.fillLiteralMap(["command", "start", "id", workerId, "replyTo", H._serializeMessage(replyPort), "functionName", functionName], P.LinkedHashMap_LinkedHashMap(null, null, null, null, null))));
+  worker.postMessage(H._serializeMessage(H.fillLiteralMap(["command", "start", "id", workerId, "replyTo", H._serializeMessage(replyPort), "args", args, "msg", H._serializeMessage(message), "isSpawnUri", isSpawnUri, "functionName", functionName], P.LinkedHashMap_LinkedHashMap(null, null, null, null, null))));
 },
 
 _waitForPendingPorts: function(message, callback) {
   var finder = H._PendingSendPortFinder$();
   finder.traverse$1(message);
   P.Future_wait(finder.ports).then$1(new H._waitForPendingPorts_closure(callback));
 },
 
 _serializeMessage: function(message) {
   var t1;
@@ skipping 16 matching lines @@
 },
 
 _MessageTraverser_isPrimitive: function(x) {
   return x == null || typeof x === "string" || typeof x === "number" || typeof x === "boolean";
 },
 
 _Deserializer_isPrimitive: function(x) {
   return x == null || typeof x === "string" || typeof x === "number" || typeof x === "boolean";
 },
 
-CloseToken: {"": "Object;", $isCloseToken: true},
+startRootIsolate_closure: {"": "Closure;entry_0",
+  call$0: function() {
+    this.entry_0.call$1([]);
+  }
+},
 
-JsIsolateSink: {"": "EventSink;_isClosed,_port<",
-  add$1: function(_, message) {
-    this._port.send$1(message);
-  },
-  $eq: function(_, other) {
-    var t1;
-    if (other == null)
-      return false;
-    t1 = J.getInterceptor(other);
-    return typeof other === "object" && other !== null && !!t1.$isIsolateSink && J.$eq(this._port, other.get$_port());
-  },
-  get$hashCode: function(_) {
-    return J.get$hashCode$(this._port) + 499;
-  },
-  $isJsIsolateSink: true,
-  $isIsolateSink: true
+startRootIsolate_closure0: {"": "Closure;entry_1",
+  call$0: function() {
+    this.entry_1.call$2([], null);
+  }
 },
 
 _Manager: {"": "Object;nextIsolateId,currentManagerId,nextManagerId,currentContext,rootContext,topEventLoop,fromCommandLine,isWorker,supportsWorkers,isolates,mainManager,managers,entry",
   _nativeDetectEnvironment$0: function() {
     var t1, t2;
     t1 = $.get$globalWindow() == null;
     t2 = $.get$globalWorker();
     this.isWorker = t1 && $.get$globalPostMessageDefined() === true;
     if (this.isWorker !== true)
       t2 = t2 != null && $.get$IsolateNatives_thisScript() != null;
@@ skipping 40 matching lines @@
       if (old != null)
         $ = old.get$isolateStatics();
     }
     return result;
   },
   lookup$1: function(portId) {
     var t1 = this.ports;
     return t1.$index(t1, portId);
   },
   register$2: function(_, portId, port) {
-    var t1;
-    if (this.ports.containsKey$1(portId))
+    var t1 = this.ports;
+    if (t1.containsKey$1(t1, portId))
       throw H.wrapException(P.Exception_Exception("Registry: ports must be registered only once."));
     t1 = this.ports;
     t1.$indexSet(t1, portId, port);
     t1 = $globalState.isolates;
     t1.$indexSet(t1, this.id, this);
   },
   unregister$1: function(portId) {
     var t1 = this.ports;
     t1.remove$1(t1, portId);
     if (this.ports._collection$_length === 0) {
@@ skipping 20 matching lines @@
 },
 
 _EventLoop: {"": "Object;events,activeTimerCount",
   dequeue$0: function() {
     var t1 = this.events;
     if (t1._head === t1._tail)
       return;
     return t1.removeFirst$0();
   },
   checkOpenReceivePortsFromCommandLine$0: function() {
-    if ($globalState.rootContext != null && $globalState.isolates.containsKey$1($globalState.rootContext.id) && $globalState.fromCommandLine === true && $globalState.rootContext.ports._collection$_length === 0)
+    if ($globalState.rootContext != null) {
+      var t1 = $globalState.isolates;
+      t1 = t1.containsKey$1(t1, $globalState.rootContext.id) && $globalState.fromCommandLine === true && $globalState.rootContext.ports._collection$_length === 0;
+    } else
+      t1 = false;
+    if (t1)
       throw H.wrapException(P.Exception_Exception("Program exited with open ReceivePorts."));
   },
   runIteration$0: function() {
     var $event, t1, t2;
     $event = this.dequeue$0();
     if ($event == null) {
       this.checkOpenReceivePortsFromCommandLine$0();
       t1 = $globalState;
       if (t1.isWorker === true && t1.isolates._collection$_length === 0 && t1.topEventLoop.activeTimerCount === 0) {
         t1 = t1.mainManager;
@@ skipping 42 matching lines @@
 },
 
 _IsolateEvent: {"": "Object;isolate,fn,message",
   process$0: function() {
     this.isolate.eval$1(this.fn);
   }
 },
 
 _MainManagerStub: {"": "Object;"},
 
-IsolateNatives__processWorkerMessage_closure: {"": "Closure;entryPoint_0,replyTo_1",
+IsolateNatives__processWorkerMessage_closure: {"": "Closure;entryPoint_0,args_1,message_2,isSpawnUri_3,replyTo_4",
   call$0: function() {
-    H.IsolateNatives__startIsolate(this.entryPoint_0, this.replyTo_1);
+    H.IsolateNatives__startIsolate(this.entryPoint_0, this.args_1, this.message_2, this.isSpawnUri_3, this.replyTo_4);
   }
 },
 
-_BaseSendPort: {"": "Object;",
-  _checkReplyTo$1: function(replyTo) {
-    var t1;
-    if (replyTo != null) {
-      t1 = J.getInterceptor(replyTo);
-      t1 = (typeof replyTo !== "object" || replyTo === null || !t1.$is_NativeJsSendPort) && (typeof replyTo !== "object" || replyTo === null || !t1.$is_WorkerSendPort) && true;
-    } else
-      t1 = false;
-    if (t1)
-      throw H.wrapException(P.Exception_Exception("SendPort.send: Illegal replyTo port type"));
-  },
-  call$1: function(message) {
-    var t1, completer, port;
-    t1 = null;
-    completer = new P._AsyncCompleter(P._Future$(t1));
-    H.setRuntimeTypeInfo(completer, [t1]);
-    port = H.ReceivePortImpl$();
-    this.send$2(message, new H._NativeJsSendPort(port, $globalState.currentContext.id));
-    port._callback = new H._BaseSendPort_call_closure(completer, port);
-    return completer.future;
-  },
-  $isSendPort: true
-},
-
-_BaseSendPort_call_closure: {"": "Closure;completer_0,port_1",
-  call$2: function(value, ignoreReplyTo) {
-    var t1, t2;
-    t1 = this.port_1;
-    t1._callback = null;
-    $globalState.currentContext.unregister$1(t1._id);
-    t1 = J.getInterceptor(value);
-    t2 = this.completer_0;
-    if (typeof value === "object" && value !== null && !!t1.$isException) {
-      t1 = t2.future;
-      if (t1._state !== 0)
-        H.throwExpression(new P.StateError("Future already completed"));
-      t1._asyncCompleteError$2(value, null);
-    } else {
-      t1 = t2.future;
-      if (t1._state !== 0)
-        H.throwExpression(new P.StateError("Future already completed"));
-      t1._asyncComplete$1(value);
-    }
-  },
-  $is_args2: true
-},
+_BaseSendPort: {"": "Object;", $isSendPort: true},
 
 _NativeJsSendPort: {"": "_BaseSendPort;_receivePort,_isolateId",
-  send$2: function(message, replyTo) {
-    H._waitForPendingPorts([message, replyTo], new H._NativeJsSendPort_send_closure(this, message, replyTo));
+  send$2: function(_, message, replyTo) {
+    H._waitForPendingPorts(message, new H._NativeJsSendPort_send_closure(this, message));
   },
-  send$1: function(message) {
-    return this.send$2(message, null);
+  send$1: function($receiver, message) {
+    return this.send$2($receiver, message, null);
   },
   $eq: function(_, other) {
     var t1;
     if (other == null)
       return false;
     t1 = J.getInterceptor(other);
     return typeof other === "object" && other !== null && !!t1.$is_NativeJsSendPort && J.$eq(this._receivePort, other._receivePort);
   },
   get$hashCode: function(_) {
     return this._receivePort.get$_id();
   },
   $is_NativeJsSendPort: true,
   $isSendPort: true
 },
 
-_NativeJsSendPort_send_closure: {"": "Closure;this_1,message_2,replyTo_3",
+_NativeJsSendPort_send_closure: {"": "Closure;this_1,message_2",
   call$0: function() {
-    var t1, t2, t3, t4, t5, isolate, shouldSerialize, msg;
+    var t1, t2, t3, t4, isolate, shouldSerialize, msg;
     t1 = {};
-    t2 = this.this_1;
-    t3 = this.replyTo_3;
-    t2._checkReplyTo$1(t3);
-    t4 = $globalState.isolates;
-    t5 = t2._isolateId;
-    isolate = t4.$index(t4, t5);
+    t2 = $globalState.isolates;
+    t3 = this.this_1;
+    t4 = t3._isolateId;
+    isolate = t2.$index(t2, t4);
     if (isolate == null)
       return;
-    if (t2._receivePort.get$_callback() == null)
+    if ((t3._receivePort.get$_controller()._state & 4) !== 0)
       return;
-    shouldSerialize = $globalState.currentContext != null && $globalState.currentContext.id !== t5;
+    shouldSerialize = $globalState.currentContext != null && $globalState.currentContext.id !== t4;
     msg = this.message_2;
     t1.msg_0 = msg;
-    t1.reply_1 = t3;
-    if (shouldSerialize) {
+    if (shouldSerialize)
       t1.msg_0 = H._serializeMessage(t1.msg_0);
-      t1.reply_1 = H._serializeMessage(t1.reply_1);
-    }
-    t3 = $globalState.topEventLoop;
+    t2 = $globalState.topEventLoop;
     t4 = "receive " + H.S(msg);
-    t3.events._add$1(new H._IsolateEvent(isolate, new H._NativeJsSendPort_send__closure(t1, t2, shouldSerialize), t4));
+    t2.events._add$1(new H._IsolateEvent(isolate, new H._NativeJsSendPort_send__closure(t1, t3, shouldSerialize), t4));
   }
 },
 
-_NativeJsSendPort_send__closure: {"": "Closure;box_0,this_4,shouldSerialize_5",
+_NativeJsSendPort_send__closure: {"": "Closure;box_0,this_3,shouldSerialize_4",
   call$0: function() {
     var t1, t2;
-    t1 = this.this_4._receivePort;
-    if (t1.get$_callback() != null) {
-      if (this.shouldSerialize_5) {
+    t1 = this.this_3._receivePort;
+    if ((t1.get$_controller()._state & 4) === 0) {
+      if (this.shouldSerialize_4) {
         t2 = this.box_0;
         t2.msg_0 = H._deserializeMessage(t2.msg_0);
-        t2.reply_1 = H._deserializeMessage(t2.reply_1);
       }
-      t2 = this.box_0;
-      t1._callback$2(t2.msg_0, t2.reply_1);
+      t1 = t1.get$_controller();
+      t2 = this.box_0.msg_0;
+      if (t1._state >= 4)
+        H.throwExpression(t1._badEventState$0());
+      t1._async$_add$1(t2);
     }
   }
 },
 
 _WorkerSendPort: {"": "_BaseSendPort;_workerId,_receivePortId,_isolateId",
-  send$2: function(message, replyTo) {
-    H._waitForPendingPorts([message, replyTo], new H._WorkerSendPort_send_closure(this, message, replyTo));
+  send$2: function(_, message, replyTo) {
+    H._waitForPendingPorts(message, new H._WorkerSendPort_send_closure(this, message));
   },
-  send$1: function(message) {
-    return this.send$2(message, null);
+  send$1: function($receiver, message) {
+    return this.send$2($receiver, message, null);
   },
   $eq: function(_, other) {
     var t1;
     if (other == null)
       return false;
     t1 = J.getInterceptor(other);
     if (typeof other === "object" && other !== null && !!t1.$is_WorkerSendPort)
       t1 = J.$eq(this._workerId, other._workerId) && J.$eq(this._isolateId, other._isolateId) && J.$eq(this._receivePortId, other._receivePortId);
     else
       t1 = false;
     return t1;
   },
   get$hashCode: function(_) {
     var t1, t2, t3;
     t1 = this._workerId;
     if (typeof t1 !== "number")
       throw t1.$shl();
     t2 = this._isolateId;
     if (typeof t2 !== "number")
       throw t2.$shl();
     t3 = this._receivePortId;
     if (typeof t3 !== "number")
       throw H.iae(t3);
     return (t1 << 16 ^ t2 << 8 ^ t3) >>> 0;
   },
   $is_WorkerSendPort: true,
   $isSendPort: true
 },
 
-_WorkerSendPort_send_closure: {"": "Closure;this_0,message_1,replyTo_2",
+_WorkerSendPort_send_closure: {"": "Closure;this_0,message_1",
   call$0: function() {
-    var t1, t2, workerMessage, manager;
+    var t1, workerMessage, t2, manager;
     t1 = this.this_0;
-    t2 = this.replyTo_2;
-    t1._checkReplyTo$1(t2);
-    workerMessage = H._serializeMessage(H.fillLiteralMap(["command", "message", "port", t1, "msg", this.message_1, "replyTo", t2], P.LinkedHashMap_LinkedHashMap(null, null, null, null, null)));
+    workerMessage = H._serializeMessage(H.fillLiteralMap(["command", "message", "port", t1, "msg", this.message_1], P.LinkedHashMap_LinkedHashMap(null, null, null, null, null)));
     if ($globalState.isWorker === true) {
       $globalState.mainManager.toString;
       self.postMessage(workerMessage);
     } else {
       t2 = $globalState.managers;
       manager = t2.$index(t2, t1._workerId);
       if (manager != null)
         manager.postMessage(workerMessage);
     }
   }
 },
 
-ReceivePortImpl: {"": "Object;_id<,_callback<",
-  _callback$2: function(arg0, arg1) {
-    return this._callback.call$2(arg0, arg1);
+ReceivePortImpl: {"": "Stream;_id<,_controller<",
+  listen$4$cancelOnError$onDone$onError: function(onData, cancelOnError, onDone, onError) {
+    var t1 = this._controller;
+    t1.toString;
+    t1 = new P._ControllerStream(t1);
+    H.setRuntimeTypeInfo(t1, [null]);
+    return t1.listen$4$cancelOnError$onDone$onError(onData, cancelOnError, onDone, onError);
+  },
+  close$0: function(_) {
+    var t1 = this._controller;
+    if ((t1._state & 4) !== 0)
+      return;
+    t1.close$0(t1);
+    $globalState.currentContext.unregister$1(this._id);
+  },
+  get$close: function(_receiver) {
+    return new H.BoundClosure$i0(this, H.ReceivePortImpl.prototype.close$0, _receiver, "close$0");
   },
   ReceivePortImpl$0: function() {
+    this._controller = P.StreamController_StreamController(this.get$close(this), null, null, null, true, null);
     var t1 = $globalState.currentContext;
     t1.register$2(t1, this._id, this);
   },
   static: {
 "": "ReceivePortImpl__nextFreeId",
 ReceivePortImpl$: function() {
   var t1 = $.ReceivePortImpl__nextFreeId;
   $.ReceivePortImpl__nextFreeId = t1 + 1;
   t1 = new H.ReceivePortImpl(t1, null);
   t1.ReceivePortImpl$0();
   return t1;
 }}
 
 },
 
 _waitForPendingPorts_closure: {"": "Closure;callback_0",
   call$1: function(_) {
     return this.callback_0.call$0();
-  }
+  },
+  $is_args1: true
 },
 
 _PendingSendPortFinder: {"": "_MessageTraverser;ports,_visited",
   visitPrimitive$1: function(x) {
   },
   visitList$1: function(list) {
     var t1 = this._visited;
     if (t1.$index(t1, list) != null)
       return;
     t1 = this._visited;
     t1.$indexSet(t1, list, true);
-    J.forEach$1$ax(list, new H._PendingSendPortFinder_visitList_closure(this));
+    J.forEach$1$ax(list, this.get$_dispatch());
   },
   visitMap$1: function(map) {
     var t1 = this._visited;
     if (t1.$index(t1, map) != null)
       return;
     t1 = this._visited;
     t1.$indexSet(t1, map, true);
-    t1 = map.get$values(map);
-    t1.forEach$1(t1, new H._PendingSendPortFinder_visitMap_closure(this));
+    J.forEach$1$ax(J.get$values$x(map), this.get$_dispatch());
   },
   visitSendPort$1: function(port) {
   },
-  visitIsolateSink$1: function(sink) {
-    this.visitSendPort$1(sink._port);
-  },
-  visitCloseToken$1: function(token) {
-  },
   _PendingSendPortFinder$0: function() {
     this._visited = new H._JsVisitedMap(null);
   },
   static: {
 _PendingSendPortFinder$: function() {
   var t1 = new H._PendingSendPortFinder([], new H._MessageTraverserVisitedMap());
   t1._PendingSendPortFinder$0();
   return t1;
 }}
 
 },
 
-_PendingSendPortFinder_visitList_closure: {"": "Closure;this_0",
-  call$1: function(e) {
-    return this.this_0._dispatch$1(e);
-  }
-},
-
-_PendingSendPortFinder_visitMap_closure: {"": "Closure;this_0",
-  call$1: function(e) {
-    return this.this_0._dispatch$1(e);
-  }
-},
-
 _JsSerializer: {"": "_Serializer;_nextFreeRefId,_visited",
   visitSendPort$1: function(x) {
-    var t1 = J.getInterceptor(x);
-    if (typeof x === "object" && x !== null && !!t1.$is_NativeJsSendPort)
+    if (!!x.$is_NativeJsSendPort)
       return ["sendport", $globalState.currentManagerId, x._isolateId, x._receivePort.get$_id()];
-    if (typeof x === "object" && x !== null && !!t1.$is_WorkerSendPort)
+    if (!!x.$is_WorkerSendPort)
       return ["sendport", x._workerId, x._isolateId, x._receivePortId];
     throw H.wrapException("Illegal underlying port " + H.S(x));
-  },
-  visitIsolateSink$1: function(sink) {
-    var isClosed = sink._isClosed;
-    return ["isolateSink", this.visitSendPort$1(sink._port), isClosed];
-  },
-  visitCloseToken$1: function(token) {
-    return ["closeToken"];
   }
 },
 
 _JsCopier: {"": "_Copier;_visited",
   visitSendPort$1: function(x) {
-    var t1 = J.getInterceptor(x);
-    if (typeof x === "object" && x !== null && !!t1.$is_NativeJsSendPort)
+    if (!!x.$is_NativeJsSendPort)
       return new H._NativeJsSendPort(x._receivePort, x._isolateId);
-    if (typeof x === "object" && x !== null && !!t1.$is_WorkerSendPort)
+    if (!!x.$is_WorkerSendPort)
       return new H._WorkerSendPort(x._workerId, x._receivePortId, x._isolateId);
     throw H.wrapException("Illegal underlying port " + H.S(x));
-  },
-  visitIsolateSink$1: function(sink) {
-    var result = new H.JsIsolateSink(false, this.visitSendPort$1(sink._port));
-    result._isClosed = sink._isClosed;
-    return result;
-  },
-  visitCloseToken$1: function(token) {
-    return token;
   }
 },
 
 _JsDeserializer: {"": "_Deserializer;_deserialized",
   deserializeSendPort$1: function(list) {
     var t1, managerId, isolateId, receivePortId, isolate, receivePort;
     t1 = J.getInterceptor$asx(list);
     managerId = t1.$index(list, 1);
     isolateId = t1.$index(list, 2);
     receivePortId = t1.$index(list, 3);
     if (J.$eq(managerId, $globalState.currentManagerId)) {
       t1 = $globalState.isolates;
       isolate = t1.$index(t1, isolateId);
       if (isolate == null)
         return;
       receivePort = isolate.lookup$1(receivePortId);
       if (receivePort == null)
         return;
       return new H._NativeJsSendPort(receivePort, isolateId);
     } else
       return new H._WorkerSendPort(managerId, receivePortId, isolateId);
-  },
-  deserializeIsolateSink$1: function(list) {
-    var t1, port, result;
-    t1 = J.getInterceptor$asx(list);
-    port = this.deserializeSendPort$1(t1.$index(list, 1));
-    result = new H.JsIsolateSink(false, port);
-    result._isClosed = t1.$index(list, 2);
-    return result;
-  },
-  deserializeCloseToken$1: function(list) {
-    return C.C_CloseToken;
   }
 },
 
 _JsVisitedMap: {"": "Object;tagged",
   $index: function(_, object) {
     return object.__MessageTraverser__attached_info__;
   },
   $indexSet: function(_, object, info) {
     this.tagged.push(object);
     object.__MessageTraverser__attached_info__ = info;
@@ skipping 44 matching lines @@
     var t1;
     if (x == null || typeof x === "string" || typeof x === "number" || typeof x === "boolean")
       return this.visitPrimitive$1(x);
     t1 = J.getInterceptor(x);
     if (typeof x === "object" && x !== null && (x.constructor === Array || !!t1.$isList))
       return this.visitList$1(x);
     if (typeof x === "object" && x !== null && !!t1.$isMap)
       return this.visitMap$1(x);
     if (typeof x === "object" && x !== null && !!t1.$isSendPort)
       return this.visitSendPort$1(x);
-    if (typeof x === "object" && x !== null && !!t1.$isJsIsolateSink)
-      return this.visitIsolateSink$1(x);
-    if (typeof x === "object" && x !== null && !!t1.$isCloseToken)
-      return this.visitCloseToken$1(x);
     return this.visitObject$1(x);
   },
+  get$_dispatch: function() {
+    return new H.BoundClosure$1(this, H._MessageTraverser.prototype._dispatch$1, null, "_dispatch$1");
+  },
   visitObject$1: function(x) {
     throw H.wrapException("Message serialization: Illegal value " + H.S(x) + " passed");
   }
 },
 
 _Copier: {"": "_MessageTraverser;",
   visitPrimitive$1: function(x) {
     return x;
   },
   visitList$1: function(list) {
-    var t1, copy, len, i, t2;
-    if (typeof list !== "string" && (typeof list !== "object" || list === null || list.constructor !== Array && !H.isJsIndexable(list, list[init.dispatchPropertyName])))
-      return this.visitList$1$bailout1(1, list);
-    t1 = this._visited;
-    copy = t1.$index(t1, list);
-    if (copy != null)
-      return copy;
-    len = list.length;
-    copy = P.List_List(len, null);
-    t1 = this._visited;
-    t1.$indexSet(t1, list, copy);
-    for (t1 = copy.length, i = 0; i < len; ++i) {
-      if (i >= list.length)
-        throw H.ioore(list, i);
-      t2 = this._dispatch$1(list[i]);
-      if (i >= t1)
-        throw H.ioore(copy, i);
-      copy[i] = t2;
-    }
-    return copy;
-  },
-  visitList$1$bailout1: function(state0, list) {
     var t1, copy, len, t2, i, t3;
     t1 = this._visited;
     copy = t1.$index(t1, list);
     if (copy != null)
       return copy;
     t1 = J.getInterceptor$asx(list);
     len = t1.get$length(list);
     copy = P.List_List(len, null);
     t2 = this._visited;
     t2.$indexSet(t2, list, copy);
     for (t2 = copy.length, i = 0; i < len; ++i) {
       t3 = this._dispatch$1(t1.$index(list, i));
       if (i >= t2)
         throw H.ioore(copy, i);
       copy[i] = t3;
     }
     return copy;
   },
   visitMap$1: function(map) {
     var t1, t2;
     t1 = {};
     t2 = this._visited;
     t1.copy_0 = t2.$index(t2, map);
     t2 = t1.copy_0;
     if (t2 != null)
       return t2;
     t1.copy_0 = P.LinkedHashMap_LinkedHashMap(null, null, null, null, null);
     t2 = this._visited;
     t2.$indexSet(t2, map, t1.copy_0);
-    map.forEach$1(map, new H._Copier_visitMap_closure(t1, this));
+    J.forEach$1$ax(map, new H._Copier_visitMap_closure(t1, this));
     return t1.copy_0;
   }
 },
 
 _Copier_visitMap_closure: {"": "Closure;box_0,this_1",
   call$2: function(key, val) {
     var t1 = this.this_1;
     J.$indexSet$ax(this.box_0.copy_0, t1._dispatch$1(key), t1._dispatch$1(val));
   },
   $is_args2: true
 },
 
 _Serializer: {"": "_MessageTraverser;",
   visitPrimitive$1: function(x) {
     return x;
   },
   visitList$1: function(list) {
     var t1, copyId, id;
     t1 = this._visited;
     copyId = t1.$index(t1, list);
     if (copyId != null)
       return ["ref", copyId];
     id = this._nextFreeRefId;
     this._nextFreeRefId = id + 1;
     t1 = this._visited;
     t1.$indexSet(t1, list, id);
     return ["list", id, this._serializeList$1(list)];
   },
   visitMap$1: function(map) {
-    var t1, copyId, id, keys;
+    var t1, copyId, id;
     t1 = this._visited;
     copyId = t1.$index(t1, map);
     if (copyId != null)
       return ["ref", copyId];
     id = this._nextFreeRefId;
     this._nextFreeRefId = id + 1;
     t1 = this._visited;
     t1.$indexSet(t1, map, id);
-    t1 = map.get$keys();
-    keys = this._serializeList$1(P.List_List$from(t1, true, H.getRuntimeTypeArgument(t1, "IterableBase", 0)));
-    t1 = map.get$values(map);
-    return ["map", id, keys, this._serializeList$1(P.List_List$from(t1, true, H.getRuntimeTypeArgument(t1, "IterableBase", 0)))];
+    t1 = J.getInterceptor$x(map);
+    return ["map", id, this._serializeList$1(J.toList$0$ax(t1.get$keys(map))), this._serializeList$1(J.toList$0$ax(t1.get$values(map)))];
   },
   _serializeList$1: function(list) {
-    var len, result, t1, i, t2;
-    if (typeof list !== "string" && (typeof list !== "object" || list === null || list.constructor !== Array && !H.isJsIndexable(list, list[init.dispatchPropertyName])))
-      return this._serializeList$1$bailout(1, list);
-    len = list.length;
-    result = P.List_List(len, null);
-    for (t1 = result.length, i = 0; i < len; ++i) {
-      if (i >= list.length)
-        throw H.ioore(list, i);
-      t2 = this._dispatch$1(list[i]);
-      if (i >= t1)
-        throw H.ioore(result, i);
-      result[i] = t2;
-    }
-    return result;
-  },
-  _serializeList$1$bailout: function(state0, list) {
     var t1, len, result, t2, i, t3;
     t1 = J.getInterceptor$asx(list);
     len = t1.get$length(list);
     result = P.List_List(len, null);
     for (t2 = result.length, i = 0; i < len; ++i) {
       t3 = this._dispatch$1(t1.$index(list, i));
       if (i >= t2)
         throw H.ioore(result, i);
       result[i] = t3;
     }
@@ skipping 17 matching lines @@
       case "ref":
         id = t1.$index(x, 1);
         t1 = this._deserialized;
         return t1.$index(t1, id);
       case "list":
         return this._deserializeList$1(x);
       case "map":
         return this._deserializeMap$1(x);
       case "sendport":
         return this.deserializeSendPort$1(x);
-      case "isolateSink":
-        return this.deserializeIsolateSink$1(x);
-      case "closeToken":
-        return this.deserializeCloseToken$1(x);
       default:
         return this.deserializeObject$1(x);
     }
   },
   _deserializeList$1: function(x) {
     var t1, id, dartList, len, i;
     t1 = J.getInterceptor$asx(x);
     id = t1.$index(x, 1);
     dartList = t1.$index(x, 2);
-    if (typeof dartList !== "object" || dartList === null || (dartList.constructor !== Array || !!dartList.immutable$list) && !H.isJsIndexable(dartList, dartList[init.dispatchPropertyName]))
-      return this._deserializeList$1$bailout(1, dartList, id);
-    t1 = this._deserialized;
-    t1.$indexSet(t1, id, dartList);
-    len = dartList.length;
-    for (i = 0; i < len; ++i) {
-      if (i >= dartList.length)
-        throw H.ioore(dartList, i);
-      t1 = this._deserializeHelper$1(dartList[i]);
-      if (i >= dartList.length)
-        throw H.ioore(dartList, i);
-      dartList[i] = t1;
-    }
-    return dartList;
-  },
-  _deserializeList$1$bailout: function(state0, dartList, id) {
-    var t1, len, i;
     t1 = this._deserialized;
     t1.$indexSet(t1, id, dartList);
     t1 = J.getInterceptor$asx(dartList);
     len = t1.get$length(dartList);
     if (typeof len !== "number")
       throw H.iae(len);
     i = 0;
     for (; i < len; ++i)
       t1.$indexSet(dartList, i, this._deserializeHelper$1(t1.$index(dartList, i)));
     return dartList;
   },
   _deserializeMap$1: function(x) {
-    var result, t1, id, t2, keys, values, len, i, key;
+    var result, t1, id, t2, keys, values, len, i;
     result = P.LinkedHashMap_LinkedHashMap(null, null, null, null, null);
     t1 = J.getInterceptor$asx(x);
     id = t1.$index(x, 1);
     t2 = this._deserialized;
     t2.$indexSet(t2, id, result);
     keys = t1.$index(x, 2);
-    if (typeof keys !== "string" && (typeof keys !== "object" || keys === null || keys.constructor !== Array && !H.isJsIndexable(keys, keys[init.dispatchPropertyName])))
-      return this._deserializeMap$1$bailout(1, result, keys, t1, x);
     values = t1.$index(x, 3);
-    if (typeof values !== "string" && (typeof values !== "object" || values === null || values.constructor !== Array && !H.isJsIndexable(values, values[init.dispatchPropertyName])))
-      return this._deserializeMap$1$bailout(2, result, keys, 0, 0, values);
-    len = keys.length;
-    for (i = 0; i < len; ++i) {
-      if (i >= keys.length)
-        throw H.ioore(keys, i);
-      key = this._deserializeHelper$1(keys[i]);
-      if (i >= values.length)
-        throw H.ioore(values, i);
-      result.$indexSet(result, key, this._deserializeHelper$1(values[i]));
-    }
+    t1 = J.getInterceptor$asx(keys);
+    len = t1.get$length(keys);
+    if (typeof len !== "number")
+      throw H.iae(len);
+    t2 = J.getInterceptor$asx(values);
+    i = 0;
+    for (; i < len; ++i)
+      result.$indexSet(result, this._deserializeHelper$1(t1.$index(keys, i)), this._deserializeHelper$1(t2.$index(values, i)));
     return result;
   },
-  _deserializeMap$1$bailout: function(state0, result, keys, t1, x, values) {
-    switch (state0) {
-      case 0:
-        result = P.LinkedHashMap_LinkedHashMap(null, null, null, null, null);
-        t1 = J.getInterceptor$asx(x);
-        id = t1.$index(x, 1);
-        t2 = this._deserialized;
-        t2.$indexSet(t2, id, result);
-        keys = t1.$index(x, 2);
-      case 1:
-        state0 = 0;
-        values = t1.$index(x, 3);
-      case 2:
-        var id, t2, len, i;
-        state0 = 0;
-        t1 = J.getInterceptor$asx(keys);
-        len = t1.get$length(keys);
-        if (typeof len !== "number")
-          throw H.iae(len);
-        t2 = J.getInterceptor$asx(values);
-        i = 0;
-        for (; i < len; ++i)
-          result.$indexSet(result, this._deserializeHelper$1(t1.$index(keys, i)), this._deserializeHelper$1(t2.$index(values, i)));
-        return result;
-    }
-  },
   deserializeObject$1: function(x) {
     throw H.wrapException("Unexpected serialized object");
   }
 },
 
 TimerImpl: {"": "Object;_once,_inEventLoop,_handle",
   TimerImpl$2: function(milliseconds, callback) {
     var t1, t2;
     if (milliseconds === 0)
       t1 = $.get$globalThis().setTimeout == null || $globalState.isWorker === true;
@@ skipping 121 matching lines @@
   }
   return result;
 },
 
 Primitives_stringFromCodePoints: function(codePoints) {
   var a, t1, i;
   a = [];
   for (t1 = new H.ListIterator(codePoints, codePoints.length, 0, null); t1.moveNext$0();) {
     i = t1._current;
     if (typeof i !== "number" || Math.floor(i) !== i)
-      throw H.wrapException(P.ArgumentError$(i));
+      throw H.wrapException(new P.ArgumentError(i));
     if (i <= 65535)
       a.push(i);
     else if (i <= 1114111) {
       a.push(55296 + (C.JSInt_methods.$shr(i - 65536, 10) & 1023));
       a.push(56320 + (i & 1023));
     } else
-      throw H.wrapException(P.ArgumentError$(i));
+      throw H.wrapException(new P.ArgumentError(i));
   }
   return H.Primitives__fromCharCodeApply(a);
 },
 
 Primitives_stringFromCharCodes: function(charCodes) {
   var t1, i;
   for (t1 = new H.ListIterator(charCodes, charCodes.length, 0, null); t1.moveNext$0();) {
     i = t1._current;
     if (typeof i !== "number" || Math.floor(i) !== i)
-      throw H.wrapException(P.ArgumentError$(i));
+      throw H.wrapException(new P.ArgumentError(i));
     if (i < 0)
-      throw H.wrapException(P.ArgumentError$(i));
+      throw H.wrapException(new P.ArgumentError(i));
     if (i > 65535)
       return H.Primitives_stringFromCodePoints(charCodes);
   }
   return H.Primitives__fromCharCodeApply(charCodes);
 },
 
 Primitives_getProperty: function(object, key) {
   if (object == null || typeof object === "boolean" || typeof object === "number" || typeof object === "string")
     throw H.wrapException(new P.ArgumentError(object));
   return object[key];
@@ skipping 174 matching lines @@
   if (closure == null)
     return;
   $function = closure.$identity;
   if (!!$function)
     return $function;
   $function = (function(closure, arity, context, invoke) {  return function(a1, a2, a3, a4) {     return invoke(closure, context, arity, a1, a2, a3, a4);  };})(closure,arity,$globalState.currentContext,H.invokeClosure$closure.call$7);
   closure.$identity = $function;
   return $function;
 },
 
+propertyTypeCastError: function(value, property) {
+  var t1 = J.getInterceptor$asx(property);
+  throw H.wrapException(H.CastErrorImplementation$(H.Primitives_objectTypeName(value), t1.substring$2(property, 3, t1.get$length(property))));
+},
+
+interceptedTypeCast: function(value, property) {
+  var t1;
+  if (value != null)
+    t1 = typeof value === "object" && J.getInterceptor(value)[property];
+  else
+    t1 = true;
+  if (t1)
+    return value;
+  H.propertyTypeCastError(value, property);
+},
+
 throwCyclicInit: function(staticName) {
   throw H.wrapException(P.CyclicInitializationError$("Cyclic initialization for static " + H.S(staticName)));
 },
 
 setRuntimeTypeInfo: function(target, typeInfo) {
   if (target != null)
     target.$builtinTypeInfo = typeInfo;
   return target;
 },
 
@@ skipping 12 matching lines @@
   return $arguments == null ? null : $arguments[index];
 },
 
 runtimeTypeToString: function(type) {
   if (type == null)
     return "dynamic";
   else if (typeof type === "object" && type !== null && type.constructor === Array)
     return type[0].builtin$cls + H.joinArguments(type, 1);
   else if (typeof type == "function")
     return type.builtin$cls;
+  else if (typeof type === "number" && Math.floor(type) === type)
+    return C.JSInt_methods.toString$0(type);
   else
     return;
 },
 
 joinArguments: function(types, startIndex) {
   var buffer, index, firstArgument, allDynamic, argument, str;
   if (types == null)
     return "";
   buffer = P.StringBuffer$("");
   for (index = startIndex, firstArgument = true, allDynamic = true; index < types.length; ++index) {
@@ skipping 17 matching lines @@
   else if (typeof substitution == "function") {
     substitution = H.invokeOn(substitution, null, $arguments);
     if (typeof substitution === "object" && substitution !== null && substitution.constructor === Array)
       $arguments = substitution;
     else if (typeof substitution == "function")
       $arguments = H.invokeOn(substitution, null, $arguments);
   }
   return $arguments;
 },
 
+computeSignature: function(signature, context, contextName) {
+  return H.invokeOn(signature, context, H.getRuntimeTypeArguments(context, contextName));
+},
+
 invokeOn: function($function, receiver, $arguments) {
   return $function.apply(receiver, $arguments);
 },
 
 typeNameInChrome: function(obj) {
   return obj.constructor.name;
 },
 
 typeNameInSafari: function(obj) {
   return H.constructorNameFallback(obj);
@@ skipping 129 matching lines @@
   tag = $.get$getTypeNameOf().call$1(obj);
   interceptorClass = H.lookupInterceptor(hasOwnPropertyFunction, tag);
   if (interceptorClass == null) {
     secondTag = H.alternateTag(obj, tag);
     if (secondTag != null)
       interceptorClass = H.lookupInterceptor(hasOwnPropertyFunction, secondTag);
   }
   if (interceptorClass == null)
     return;
   interceptor = interceptorClass.prototype;
-  init.leafTags;
   if (init.leafTags[tag] === true)
     return H.makeLeafDispatchRecord(interceptor);
   else
     return J.makeDispatchRecord(interceptor, Object.getPrototypeOf(obj), null, null);
 },
 
 makeLeafDispatchRecord: function(interceptor) {
   return J.makeDispatchRecord(interceptor, false, null, !!interceptor.$isJavaScriptIndexingBehavior);
 },
 
+makeDefaultDispatchRecord: function(tag, interceptorClass, proto) {
+  var interceptor = interceptorClass.prototype;
+  if (init.leafTags[tag] === true)
+    return J.makeDispatchRecord(interceptor, false, null, !!interceptor.$isJavaScriptIndexingBehavior);
+  else
+    return J.makeDispatchRecord(interceptor, proto, null, null);
+},
+
+initNativeDispatch: function() {
+  var context, map, tags, i, tag, proto, record;
+  $.initNativeDispatchFlag = true;
+  if (typeof window != "undefined") {
+    context = window;
+    map = init.interceptorsByTag;
+    tags = Object.getOwnPropertyNames(map);
+    for (i = 0; i < tags.length; ++i) {
+      tag = tags[i];
+      if (typeof context[tag] == "function") {
+        proto = context[tag].prototype;
+        if (proto != null) {
+          record = H.makeDefaultDispatchRecord(tag, map[tag], proto);
+          if (record != null)
+            Object.defineProperty(proto, init.dispatchPropertyName, {value: record, enumerable: false, writable: true, configurable: true});
+        }
+      }
+    }
+  }
+},
+
 TypeErrorDecoder: {"": "Object;_pattern,_arguments,_argumentsExpr,_expr,_method,_receiver",
   matchTypeError$1: function(message) {
     var match, result, t1;
     match = new RegExp(this._pattern).exec(message);
     if (match == null)
       return;
     result = {};
     t1 = this._arguments;
     if (t1 !== -1)
       result.arguments = match[t1 + 1];
@@ skipping 132 matching lines @@
   }
 },
 
 unwrapException_saveStackTrace: {"": "Closure;ex_0",
   call$1: function(error) {
     var t1 = J.getInterceptor(error);
     if (typeof error === "object" && error !== null && !!t1.$isError)
       if (error.$thrownJsError == null)
         error.$thrownJsError = this.ex_0;
     return error;
-  }
+  },
+  $is_args1: true
 },
 
 _StackTrace: {"": "Object;_exception,_trace",
   toString$0: function(_) {
     var t1, trace;
     t1 = this._trace;
     if (t1 != null)
       return t1;
     t1 = this._exception;
     trace = typeof t1 === "object" ? t1.stack : null;
@@ skipping 32 matching lines @@
     return this.closure_10.call$4(this.arg1_11, this.arg2_12, this.arg3_13, this.arg4_14);
   }
 },
 
 Closure: {"": "Object;",
   toString$0: function(_) {
     return "Closure";
   }
 },
 
-BoundClosure: {"": "Closure;_self,_target,_receiver,__js_helper$_name",
+BoundClosure: {"": "Closure;_self,__js_helper$_target,_receiver,__js_helper$_name",
   $eq: function(_, other) {
     var t1;
     if (other == null)
       return false;
     if (this === other)
       return true;
     t1 = J.getInterceptor(other);
     if (typeof other !== "object" || other === null || !t1.$isBoundClosure)
       return false;
-    return this._self === other._self && this._target === other._target && this._receiver === other._receiver;
+    return this._self === other._self && this.__js_helper$_target === other.__js_helper$_target && this._receiver === other._receiver;
   },
   get$hashCode: function(_) {
     var t1, receiverHashCode;
     t1 = this._receiver;
     if (t1 == null)
       receiverHashCode = H.Primitives_objectHashCode(this._self);
     else
       receiverHashCode = typeof t1 !== "object" ? J.get$hashCode$(t1) : H.Primitives_objectHashCode(t1);
-    return (receiverHashCode ^ H.Primitives_objectHashCode(this._target)) >>> 0;
+    return (receiverHashCode ^ H.Primitives_objectHashCode(this.__js_helper$_target)) >>> 0;
   },
   $isBoundClosure: true
 },
 
+CastErrorImplementation: {"": "Error;message",
+  toString$0: function(_) {
+    return this.message;
+  },
+  $isError: true,
+  static: {
+CastErrorImplementation$: function(actualType, expectedType) {
+  return new H.CastErrorImplementation("CastError: Casting value of type " + actualType + " to incompatible type " + H.S(expectedType));
+}}
+
+},
+
 applyExperimentalFixup_newGetTagDartFunction: {"": "Closure;newGetTagJSFunction_0",
   call$1: function(object) {
     return this.newGetTagJSFunction_0(object);
-  }
+  },
+  $is_args1: true
 }}],
 ["dart._collection.dev", "dart:_collection-dev", , H, {
 Arrays_copy: function(src, srcStart, dst, dstStart, count) {
-  var i, j, t1, t2, t3, t4;
-  if (typeof dst !== "object" || dst === null || (dst.constructor !== Array || !!dst.immutable$list) && !H.isJsIndexable(dst, dst[init.dispatchPropertyName]))
-    return H.Arrays_copy$bailout(1, dst, src, srcStart, dstStart, count);
-  if (srcStart < dstStart)
-    for (i = srcStart + count - 1, j = dstStart + count - 1, t1 = src.length, t2 = dst.length; i >= srcStart; --i, --j) {
-      if (i < 0 || i >= t1)
-        throw H.ioore(src, i);
-      t3 = src[i];
-      if (j < 0 || j >= t2)
-        throw H.ioore(dst, j);
-      dst[j] = t3;
-    }
-  else
-    for (t1 = srcStart + count, t2 = src.length, t3 = dst.length, j = dstStart, i = srcStart; i < t1; ++i, ++j) {
-      if (i < 0 || i >= t2)
-        throw H.ioore(src, i);
-      t4 = src[i];
-      if (j < 0 || j >= t3)
-        throw H.ioore(dst, j);
-      dst[j] = t4;
-    }
-},
-
-Arrays_copy$bailout: function(state0, dst, src, srcStart, dstStart, count) {
   var i, j, t1;
   if (srcStart < dstStart)
     for (i = srcStart + count - 1, j = dstStart + count - 1; i >= srcStart; --i, --j) {
       if (i < 0 || i >= src.length)
         throw H.ioore(src, i);
       C.JSArray_methods.$indexSet(dst, j, src[i]);
     }
   else
     for (t1 = srcStart + count, j = dstStart, i = srcStart; i < t1; ++i, ++j) {
       if (i < 0 || i >= src.length)
@@ skipping 101 matching lines @@
     var t1 = this._iterable;
     t1 = t1.get$iterator(t1);
     t1 = new H.MappedIterator(null, t1, this._f);
     H.setRuntimeTypeInfo(t1, [H.getRuntimeTypeArgument(this, "MappedIterable", 0), H.getRuntimeTypeArgument(this, "MappedIterable", 1)]);
     return t1;
   },
   get$length: function(_) {
     var t1 = this._iterable;
     return t1.get$length(t1);
   },
+  get$isEmpty: function(_) {
+    var t1 = this._iterable;
+    return t1.get$isEmpty(t1);
+  },
   $asIterableBase: function($S, $T) {
     return [$T];
   },
   static: {
 MappedIterable_MappedIterable: function(iterable, $function, $S, $T) {
   var t1;
   if (!!iterable.$isEfficientLength) {
     t1 = new H.EfficientLengthMappedIterable(iterable, $function);
     H.setRuntimeTypeInfo(t1, [$S, $T]);
     return t1;
@@ skipping 21 matching lines @@
     return false;
   },
   get$current: function() {
     return this._current;
   },
   $asIterator: function($S, $T) {
     return [$T];
   }
 },
 
-FixedLengthListMixin: {"": "Object;",
-  set$length: function(receiver, newLength) {
-    throw H.wrapException(P.UnsupportedError$("Cannot change the length of a fixed-length list"));
-  },
-  add$1: function(receiver, value) {
-    throw H.wrapException(P.UnsupportedError$("Cannot add to a fixed-length list"));
-  },
-  removeLast$0: function(receiver) {
-    throw H.wrapException(P.UnsupportedError$("Cannot remove from a fixed-length list"));
-  }
-}}],
+FixedLengthListMixin: {"": "Object;"}}],
 ["dart.async", "dart:async", , P, {
 _attachStackTrace: function(o, st) {
   var t1;
   if (o == null || typeof o === "boolean" || typeof o === "number" || typeof o === "string")
     return;
   t1 = $.get$_stackTraceExpando();
   t1.$indexSet(t1, o, st);
 },
 
 _invokeErrorHandler: function(errorHandler, error, stackTrace) {
@@ skipping 94 matching lines @@
     t1 = new P._SyncStreamController(onListen, onPause, onResume, onCancel, null, 0, null);
     H.setRuntimeTypeInfo(t1, [$T]);
   } else {
     t1 = new P._AsyncStreamController(onListen, onPause, onResume, onCancel, null, 0, null);
     H.setRuntimeTypeInfo(t1, [$T]);
   }
   return t1;
 },
 
 _runGuarded: function(notificationHandler) {
-  var e, s, exception, t1, t2;
+  var result, e, s, t1, t2, exception;
   if (notificationHandler == null)
     return;
   try {
-    notificationHandler.call$0();
+    result = notificationHandler.call$0();
+    t1 = result;
+    t2 = J.getInterceptor(t1);
+    if (typeof t1 === "object" && t1 !== null && !!t2.$isFuture)
+      return result;
+    return;
   } catch (exception) {
     t1 = H.unwrapException(exception);
     e = t1;
     s = new H._StackTrace(exception, null);
     t1 = $.Zone__current;
     t2 = P._asyncError(e, s);
     t1.toString;
     P._rootHandleUncaughtError(t1, null, t1, t2, s);
   }
 
@@ skipping 26 matching lines @@
     onSuccess.call$1(userCode.call$0());
   } catch (exception) {
     t1 = H.unwrapException(exception);
     e = t1;
     s = new H._StackTrace(exception, null);
     onError.call$2(P._asyncError(e, s), s);
   }
 
 },
 
-_cancelAndError: function(subscription, future) {
-  return new P._cancelAndError_closure(subscription, future);
+_cancelAndError: function(subscription, future, error, stackTrace) {
+  var cancelFuture, t1;
+  cancelFuture = subscription.cancel$0();
+  t1 = J.getInterceptor(cancelFuture);
+  if (typeof cancelFuture === "object" && cancelFuture !== null && !!t1.$isFuture)
+    cancelFuture.whenComplete$1(new P._cancelAndError_closure(future, error, stackTrace));
+  else
+    future._completeError$2(error, stackTrace);
+},
+
+_cancelAndErrorClosure: function(subscription, future) {
+  return new P._cancelAndErrorClosure_closure(subscription, future);
+},
+
+_cancelAndValue: function(subscription, future, value) {
+  var cancelFuture, t1;
+  cancelFuture = subscription.cancel$0();
+  t1 = J.getInterceptor(cancelFuture);
+  if (typeof cancelFuture === "object" && cancelFuture !== null && !!t1.$isFuture)
+    cancelFuture.whenComplete$1(new P._cancelAndValue_closure(future, value));
+  else
+    future._complete$1(value);
 },
 
 Timer_Timer: function(duration, callback) {
   var t1, t2;
   t1 = $.Zone__current;
   if (t1 === C.C__RootZone) {
     t1.toString;
     return P._createTimer(duration, callback);
   }
   t2 = t1.bindCallback$2$runGuarded(callback, true);
   t1.toString;
   return P._createTimer(duration, t2);
 },
 
 _createTimer: function(duration, callback) {
   var milliseconds = C.JSNumber_methods.$tdiv(duration._duration, 1000);
   return H.TimerImpl$(milliseconds < 0 ? 0 : milliseconds, callback);
 },
 
 _rootHandleUncaughtError: function($self, $parent, zone, error, stackTrace) {
-  P._scheduleAsyncCallback(new P._rootHandleUncaughtError_closure(error, stackTrace));
+  P._rootRun($self, null, $self, new P._rootHandleUncaughtError_closure(error, stackTrace));
 },
 
 _rootRun: function($self, $parent, zone, f) {
   var old, t1, t2;
   t1 = $.Zone__current;
   t2 = zone;
   if (t1 == null ? t2 == null : t1 === t2)
     return f.call$0();
   old = t1;
   try {
@@ skipping 14 matching lines @@
   old = t1;
   try {
     $.Zone__current = zone;
     t1 = f.call$1(arg);
     return t1;
   } finally {
     $.Zone__current = old;
   }
 },
 
-_rootRunBinary: function($self, $parent, zone, f, arg1, arg2) {
-  var old, t1, t2;
-  t1 = $.Zone__current;
-  t2 = zone;
-  if (t1 == null ? t2 == null : t1 === t2)
-    return f.call$2(arg1, arg2);
-  old = t1;
-  try {
-    $.Zone__current = zone;
-    t1 = f.call$2(arg1, arg2);
-    return t1;
-  } finally {
-    $.Zone__current = old;
-  }
-},
-
 _AsyncError: {"": "Object;error>,stackTrace<", $isError: true},
 
 Future: {"": "Object;", $isFuture: true},
 
 Future_wait_handleError: {"": "Closure;box_0",
   call$1: function(error) {
     var t1 = this.box_0;
     if (t1.values_1 != null) {
       t1.values_1 = null;
       t1 = t1.completer_0.future;
       if (t1._state !== 0)
-        H.throwExpression(new P.StateError("Future already completed"));
+        H.throwExpression(P.StateError$("Future already completed"));
       t1._asyncCompleteError$2(error, null);
     }
     return;
-  }
+  },
+  $is_args1: true
 },
 
 Future_wait_closure: {"": "Closure;box_0,pos_1",
   call$1: function(value) {
     var t1, t2, t3;
     t1 = this.box_0;
     t2 = t1.values_1;
     if (t2 == null)
       return;
     t3 = this.pos_1;
     if (t3 < 0 || t3 >= t2.length)
       throw H.ioore(t2, t3);
     t2[t3] = value;
     t1.remaining_2 = t1.remaining_2 - 1;
     if (t1.remaining_2 === 0) {
       t2 = t1.completer_0;
       t1 = t1.values_1;
       t2 = t2.future;
       if (t2._state !== 0)
-        H.throwExpression(new P.StateError("Future already completed"));
+        H.throwExpression(P.StateError$("Future already completed"));
       t2._asyncComplete$1(t1);
     }
-  }
+  },
+  $is_args1: true
 },
 
-_Completer: {"": "Object;future<"},
+_Completer: {"": "Object;"},
 
-_AsyncCompleter: {"": "_Completer;future", $as_Completer: null},
+_AsyncCompleter: {"": "_Completer;future",
+  completeError$2: function(error, stackTrace) {
+    var t1 = this.future;
+    if (t1._state !== 0)
+      throw H.wrapException(P.StateError$("Future already completed"));
+    t1._asyncCompleteError$2(error, stackTrace);
+  },
+  get$completeError: function() {
+    return new P.BoundClosure$2(this, P._AsyncCompleter.prototype.completeError$2, null, "completeError$2");
+  },
+  $as_Completer: null
+},
 
 _Future: {"": "Object;_state,_zone<,_resultOrListeners,_nextListener@,_onValueCallback,_errorTestCallback,_onErrorCallback,_whenCompleteActionCallback",
   get$_isComplete: function() {
     return this._state >= 4;
   },
   get$_hasError: function() {
     return this._state === 8;
   },
   set$_isChained: function(value) {
     if (value)
@@ skipping 22 matching lines @@
     return this.then$2$onError(f, null);
   },
   catchError$2$test: function(onError, test) {
     var result = P._Future$_catchError(onError, test, null);
     this._addListener$1(result);
     return result;
   },
   catchError$1: function(onError) {
     return this.catchError$2$test(onError, null);
   },
+  whenComplete$1: function(action) {
+    var result = P._Future$_whenComplete(action, H.getRuntimeTypeArgument(this, "_Future", 0));
+    this._addListener$1(result);
+    return result;
+  },
   get$_value: function() {
     return this._resultOrListeners;
   },
   get$_error: function() {
     return this._resultOrListeners;
   },
   _setValue$1: function(value) {
     this._state = 4;
     this._resultOrListeners = value;
   },
@@ skipping 36 matching lines @@
     if (stackTrace != null)
       P._attachStackTrace(error, stackTrace);
     listeners = this._state === 2 ? null : this._removeListeners$0();
     this._setError$2(error, stackTrace);
     P._Future__propagateToListeners(this, listeners);
   },
   get$_completeError: function() {
     return new P.BoundClosure$2(this, P._Future.prototype._completeError$2, null, "_completeError$2");
   },
   _asyncComplete$1: function(value) {
-    var t1, t2;
-    t1 = J.getInterceptor(value);
-    t2 = typeof value === "object" && value !== null && !!t1.$isFuture;
-    if (t2)
-      ;
-    if (t2)
-      t1 = !t1.$is_Future || value._state < 4;
-    else
-      t1 = false;
-    if (t1) {
-      this._complete$1(value);
-      return;
-    }
     if (this._state !== 0)
       H.throwExpression(P.StateError$("Future already completed"));
     this._state = 1;
     this._zone.toString;
     P._scheduleAsyncCallback(new P._Future__asyncComplete_closure(this, value));
   },
   _asyncCompleteError$2: function(error, stackTrace) {
     if (this._state !== 0)
-      H.throwExpression(new P.StateError("Future already completed"));
+      H.throwExpression(P.StateError$("Future already completed"));
     this._state = 1;
     this._zone.toString;
     P._scheduleAsyncCallback(new P._Future__asyncCompleteError_closure(this, error, stackTrace));
   },
   _async$_Future$immediate$1: function(value, $T) {
     this._asyncComplete$1(value);
   },
   $is_Future: true,
   $isFuture: true,
   static: {
@@ skipping 22 matching lines @@
 _Future$_catchError: function(onErrorCallback, errorTestCallback, $T) {
   var t1, t2;
   t1 = $.Zone__current;
   t2 = P._registerErrorHandler(onErrorCallback, t1);
   t1.toString;
   t2 = new P._Future(0, t1, null, null, null, errorTestCallback, t2, null);
   H.setRuntimeTypeInfo(t2, [$T]);
   return t2;
 },
 
+_Future$_whenComplete: function(whenCompleteActionCallback, $T) {
+  var t1 = $.Zone__current;
+  t1.toString;
+  t1 = new P._Future(0, t1, null, null, null, null, null, whenCompleteActionCallback);
+  H.setRuntimeTypeInfo(t1, [$T]);
+  return t1;
+},
+
 _Future__chainFutures: function(source, target) {
   var t1;
   target._state = 2;
   t1 = J.getInterceptor(source);
   if (typeof source === "object" && source !== null && !!t1.$is_Future)
     if (source._state >= 4)
       P._Future__propagateToListeners(source, target);
     else
       source._addListener$1(target);
   else
@@ skipping 112 matching lines @@
 
 _Future__addListener_closure: {"": "Closure;this_0,listener_1",
   call$0: function() {
     P._Future__propagateToListeners(this.this_0, this.listener_1);
   }
 },
 
 _Future__chainFutures_closure: {"": "Closure;target_0",
   call$1: function(value) {
     this.target_0._complete$1(value);
-  }
+  },
+  $is_args1: true
 },
 
 _Future__chainFutures_closure0: {"": "Closure;target_1",
   call$2: function(error, stackTrace) {
     this.target_1._completeError$2(error, stackTrace);
   },
   call$1: function(error) {
     return this.call$2(error, null);
   },
-  $is_args2: true
+  $is_args2: true,
+  $is_args1: true
 },
 
 _Future__asyncComplete_closure: {"": "Closure;this_0,value_1",
   call$0: function() {
     this.this_0._complete$1(this.value_1);
   }
 },
 
 _Future__asyncCompleteError_closure: {"": "Closure;this_0,error_1,stackTrace_2",
   call$0: function() {
@@ skipping 76 matching lines @@
         t2.listenerValueOrError_2 = new P._AsyncError(P._asyncError(e, s), s);
       this.box_1.listenerHasValue_1 = false;
     }
 
   }
 },
 
 _Future__propagateToListeners__closure: {"": "Closure;box_2,listener_6",
   call$1: function(ignored) {
     P._Future__propagateToListeners(this.box_2.source_4, this.listener_6);
-  }
+  },
+  $is_args1: true
 },
 
 _Future__propagateToListeners__closure0: {"": "Closure;box_0,listener_7",
   call$2: function(error, stackTrace) {
     var t1, t2, t3;
     t1 = this.box_0;
     t2 = t1.completeResult_0;
     t3 = J.getInterceptor(t2);
     if (typeof t2 !== "object" || t2 === null || !t3.$is_Future) {
       t1.completeResult_0 = P._Future$(null);
       t1.completeResult_0._setError$2(error, stackTrace);
     }
     P._Future__propagateToListeners(t1.completeResult_0, this.listener_7);
   },
   call$1: function(error) {
     return this.call$2(error, null);
   },
-  $is_args2: true
+  $is_args2: true,
+  $is_args1: true
 },
 
 Stream: {"": "Object;",
   forEach$1: function(_, action) {
     var t1, future;
     t1 = {};
     future = P._Future$(null);
     t1.subscription_0 = null;
     t1.subscription_0 = this.listen$4$cancelOnError$onDone$onError(new P.Stream_forEach_closure(t1, this, action, future), true, new P.Stream_forEach_closure0(future), future.get$_completeError());
     return future;
   },
   get$length: function(_) {
     var t1, future;
     t1 = {};
     future = P._Future$(J.JSInt);
     t1.count_0 = 0;
     this.listen$4$cancelOnError$onDone$onError(new P.Stream_length_closure(t1), true, new P.Stream_length_closure0(t1, future), future.get$_completeError());
     return future;
+  },
+  get$isEmpty: function(_) {
+    var t1, future;
+    t1 = {};
+    future = P._Future$(J.JSBool);
+    t1.subscription_0 = null;
+    t1.subscription_0 = this.listen$4$cancelOnError$onDone$onError(new P.Stream_isEmpty_closure(t1, future), true, new P.Stream_isEmpty_closure0(future), future.get$_completeError());
+    return future;
   }
 },
 
 Stream_forEach_closure: {"": "Closure;box_0,this_1,action_2,future_3",
   call$1: function(element) {
-    P._runUserCode(new P.Stream_forEach__closure(this.action_2, element), new P.Stream_forEach__closure0(), P._cancelAndError(this.box_0.subscription_0, this.future_3));
-  }
+    P._runUserCode(new P.Stream_forEach__closure(this.action_2, element), new P.Stream_forEach__closure0(), P._cancelAndErrorClosure(this.box_0.subscription_0, this.future_3));
+  },
+  $is_args1: true
 },
 
 Stream_forEach__closure: {"": "Closure;action_4,element_5",
   call$0: function() {
     return this.action_4.call$1(this.element_5);
   }
 },
 
 Stream_forEach__closure0: {"": "Closure;",
   call$1: function(_) {
-  }
+  },
+  $is_args1: true
 },
 
 Stream_forEach_closure0: {"": "Closure;future_6",
   call$0: function() {
     this.future_6._complete$1(null);
   }
 },
 
 Stream_length_closure: {"": "Closure;box_0",
   call$1: function(_) {
     var t1 = this.box_0;
     t1.count_0 = t1.count_0 + 1;
-  }
+  },
+  $is_args1: true
 },
 
 Stream_length_closure0: {"": "Closure;box_0,future_1",
   call$0: function() {
     this.future_1._complete$1(this.box_0.count_0);
   }
 },
 
+Stream_isEmpty_closure: {"": "Closure;box_0,future_1",
+  call$1: function(_) {
+    P._cancelAndValue(this.box_0.subscription_0, this.future_1, false);
+  },
+  $is_args1: true
+},
+
+Stream_isEmpty_closure0: {"": "Closure;future_2",
+  call$0: function() {
+    this.future_2._complete$1(true);
+  }
+},
+
 StreamSubscription: {"": "Object;"},
 
-EventSink: {"": "Object;"},
-
 _StreamController: {"": "Object;",
   get$_pendingEvents: function() {
     if ((this._state & 8) === 0)
       return this._varData;
     return this._varData.get$varData();
   },
   _ensurePendingEvents$0: function() {
     if ((this._state & 8) === 0) {
       if (this._varData == null)
         this._varData = new P._StreamImplEvents(null, null, 0);
       return this._varData;
     }
     var t1 = this._varData.get$varData();
     return t1;
   },
   get$_subscription: function() {
     if ((this._state & 8) !== 0)
       return this._varData.get$varData();
     return this._varData;
   },
   _badEventState$0: function() {
     if ((this._state & 4) !== 0)
       return new P.StateError("Cannot add event after closing");
     return new P.StateError("Cannot add event while adding a stream");
   },
-  add$1: function(_, value) {
-    if (this._state >= 4)
+  _ensureDoneFuture$0: function() {
+    if (this._doneFuture == null) {
+      this._doneFuture = P._Future$(null);
+      if ((this._state & 2) !== 0)
+        this._doneFuture._complete$1(null);
+    }
+    return this._doneFuture;
+  },
+  close$0: function(_) {
+    var t1 = this._state;
+    if ((t1 & 4) !== 0)
+      return this._doneFuture;
+    if (t1 >= 4)
       throw H.wrapException(this._badEventState$0());
-    this._async$_add$1(value);
-  },
-  addError$2: function(error, stackTrace) {
-    if (this._state >= 4)
-      throw H.wrapException(this._badEventState$0());
-    this._addError$2(error, stackTrace);
-  },
-  addError$1: function(error) {
-    return this.addError$2(error, null);
+    this._state = (t1 | 4) >>> 0;
+    this._ensureDoneFuture$0();
+    t1 = this._state;
+    if ((t1 & 1) !== 0)
+      this._sendDone$0();
+    else if ((t1 & 3) === 0) {
+      t1 = this._ensurePendingEvents$0();
+      t1.add$1(t1, C.C__DelayedDone);
+    }
+    return this._doneFuture;
   },
   _async$_add$1: function(value) {
     var t1 = this._state;
     if ((t1 & 1) !== 0)
       this._sendData$1(value);
     else if ((t1 & 3) === 0) {
       t1 = this._ensurePendingEvents$0();
       t1.add$1(t1, new P._DelayedData(value, null));
     }
   },
-  _addError$2: function(error, stackTrace) {
-    var t1 = this._state;
-    if ((t1 & 1) !== 0)
-      this._sendError$2(error, stackTrace);
-    else if ((t1 & 3) === 0) {
-      t1 = this._ensurePendingEvents$0();
-      t1.add$1(t1, new P._DelayedError(error, stackTrace, null));
-    }
-  },
   _subscribe$1: function(cancelOnError) {
     var t1, t2, subscription, pendingEvents;
     if ((this._state & 3) !== 0)
       throw H.wrapException(P.StateError$("Stream has already been listened to."));
     t1 = $.Zone__current;
     t2 = cancelOnError ? 1 : 0;
-    subscription = new P._ControllerSubscription(this, null, null, null, t1, t2, null);
+    subscription = new P._ControllerSubscription(this, null, null, null, t1, t2, null, null);
     H.setRuntimeTypeInfo(subscription, [null]);
     pendingEvents = this.get$_pendingEvents();
     this._state = (this._state | 1) >>> 0;
     if ((this._state & 8) !== 0)
       this._varData.set$varData(subscription);
     else
       this._varData = subscription;
     subscription._setPendingEvents$1(pendingEvents);
     subscription._guardCallback$1(new P._StreamController__subscribe_closure(this));
     return subscription;
   },
   _recordCancel$1: function(subscription) {
-    var t1;
+    var t1, future;
     if ((this._state & 8) !== 0)
       this._varData.cancel$0();
     this._varData = null;
     this._state = (this._state & 4294967286 | 2) >>> 0;
-    P._runGuarded(this.get$_onCancel());
-    t1 = this._doneFuture;
-    if (t1 != null && t1._state === 0)
-      t1._asyncComplete$1(null);
+    t1 = new P._StreamController__recordCancel_complete(this);
+    future = P._runGuarded(this.get$_onCancel());
+    if (future != null)
+      future = future.whenComplete$1(t1);
+    else
+      t1.call$0();
+    return future;
   }
 },
 
 _StreamController__subscribe_closure: {"": "Closure;this_0",
   call$0: function() {
     P._runGuarded(this.this_0.get$_onListen());
   }
 },
 
+_StreamController__recordCancel_complete: {"": "Closure;this_0",
+  call$0: function() {
+    var t1 = this.this_0._doneFuture;
+    if (t1 != null && t1._state === 0)
+      t1._asyncComplete$1(null);
+  }
+},
+
 _SyncStreamControllerDispatch: {"": "Object;",
   _sendData$1: function(data) {
     this.get$_subscription()._async$_add$1(data);
   },
-  _sendError$2: function(error, stackTrace) {
-    this.get$_subscription()._addError$2(error, stackTrace);
+  _sendDone$0: function() {
+    this.get$_subscription()._close$0();
   }
 },
 
 _AsyncStreamControllerDispatch: {"": "Object;",
   _sendData$1: function(data) {
     this.get$_subscription()._addPending$1(new P._DelayedData(data, null));
   },
-  _sendError$2: function(error, stackTrace) {
-    this.get$_subscription()._addPending$1(new P._DelayedError(error, stackTrace, null));
+  _sendDone$0: function() {
+    this.get$_subscription()._addPending$1(C.C__DelayedDone);
   }
 },
 
 _AsyncStreamController: {"": "_StreamController__AsyncStreamControllerDispatch;_onListen<,_onPause<,_onResume<,_onCancel<,_varData,_state,_doneFuture"},
 
 _StreamController__AsyncStreamControllerDispatch: {"": "_StreamController+_AsyncStreamControllerDispatch;"},
 
 _SyncStreamController: {"": "_StreamController__SyncStreamControllerDispatch;_onListen<,_onPause<,_onResume<,_onCancel<,_varData,_state,_doneFuture"},
 
 _StreamController__SyncStreamControllerDispatch: {"": "_StreamController+_SyncStreamControllerDispatch;"},
 
-_ControllerStream: {"": "_StreamImpl;_controller",
+_ControllerStream: {"": "_StreamImpl;_async$_controller",
   _createSubscription$1: function(cancelOnError) {
-    return this._controller._subscribe$1(cancelOnError);
+    return this._async$_controller._subscribe$1(cancelOnError);
   },
   get$hashCode: function(_) {
-    return (H.Primitives_objectHashCode(this._controller) ^ 892482866) >>> 0;
+    return (H.Primitives_objectHashCode(this._async$_controller) ^ 892482866) >>> 0;
   },
   $eq: function(_, other) {
     var t1;
     if (other == null)
       return false;
     if (this === other)
       return true;
     t1 = J.getInterceptor(other);
     if (typeof other !== "object" || other === null || !t1.$is_ControllerStream)
       return false;
-    return other._controller === this._controller;
+    return other._async$_controller === this._async$_controller;
   },
   $is_ControllerStream: true,
   $as_StreamImpl: null
 },
 
-_ControllerSubscription: {"": "_BufferingStreamSubscription;_controller,_onData,_onError,_onDone,_zone,_state,_pending",
+_ControllerSubscription: {"": "_BufferingStreamSubscription;_async$_controller,_async$_onData,_onError,_onDone,_zone,_state,_cancelFuture,_pending",
   _onCancel$0: function() {
-    this._controller._recordCancel$1(this);
+    return this._async$_controller._recordCancel$1(this);
   },
   _onPause$0: function() {
     var t1, addState;
-    t1 = this._controller;
+    t1 = this._async$_controller;
     if ((t1._state & 8) !== 0) {
       addState = t1._varData;
       addState.pause$0(addState);
     }
     P._runGuarded(t1.get$_onPause());
   },
   get$_onPause: function() {
     return new P.BoundClosure$0(this, P._ControllerSubscription.prototype._onPause$0, null, "_onPause$0");
   },
   _onResume$0: function() {
-    var t1 = this._controller;
+    var t1 = this._async$_controller;
     if ((t1._state & 8) !== 0)
       t1._varData.resume$0();
     P._runGuarded(t1.get$_onResume());
   },
   get$_onResume: function() {
     return new P.BoundClosure$0(this, P._ControllerSubscription.prototype._onResume$0, null, "_onResume$0");
   },
   $as_BufferingStreamSubscription: null
 },
 
 _EventSink: {"": "Object;"},
 
-_BufferingStreamSubscription: {"": "Object;_onData,_onError,_onDone,_zone<,_state,_pending",
+_BufferingStreamSubscription: {"": "Object;_async$_onData,_onError,_onDone,_zone<,_state,_cancelFuture,_pending",
   _setPendingEvents$1: function(pendingEvents) {
     if (pendingEvents == null)
       return;
     this._pending = pendingEvents;
     if (!pendingEvents.get$isEmpty(pendingEvents)) {
-      this._state = (this._state | 32) >>> 0;
+      this._state = (this._state | 64) >>> 0;
       this._pending.schedule$1(this);
     }
   },
   onData$1: function(handleData) {
     $.Zone__current.toString;
-    this._onData = handleData;
+    this._async$_onData = handleData;
   },
   onError$1: function(_, handleError) {
     this._onError = P._registerErrorHandler(handleError, $.Zone__current);
   },
   onDone$1: function(handleDone) {
-    if (handleDone == null)
-      handleDone = P._nullDoneHandler$closure;
     $.Zone__current.toString;
     this._onDone = handleDone;
   },
   pause$1: function(_, resumeSignal) {
     var t1 = this._state;
     if ((t1 & 8) !== 0)
       return;
-    this._state = (t1 + 64 | 4) >>> 0;
-    if (t1 < 64 && this._pending != null)
+    this._state = (t1 + 128 | 4) >>> 0;
+    if (t1 < 128 && this._pending != null)
       this._pending.cancelSchedule$0();
-    if ((t1 & 4) === 0 && (this._state & 16) === 0)
+    if ((t1 & 4) === 0 && (this._state & 32) === 0)
       this._guardCallback$1(this.get$_onPause());
   },
   pause$0: function($receiver) {
     return this.pause$1($receiver, null);
   },
   resume$0: function() {
     var t1, t2;
     t1 = this._state;
     if ((t1 & 8) !== 0)
       return;
-    if (t1 >= 64) {
-      this._state = t1 - 64;
+    if (t1 >= 128) {
+      this._state = t1 - 128;
       t1 = this._state;
-      if (t1 < 64) {
-        if ((t1 & 32) !== 0) {
+      if (t1 < 128) {
+        if ((t1 & 64) !== 0) {
           t2 = this._pending;
           t2 = !t2.get$isEmpty(t2);
         } else
           t2 = false;
         if (t2)
           this._pending.schedule$1(this);
         else {
           this._state = (t1 & 4294967291) >>> 0;
-          if ((this._state & 16) === 0)
+          if ((this._state & 32) === 0)
             this._guardCallback$1(this.get$_onResume());
         }
       }
     }
   },
   cancel$0: function() {
+    this._state = (this._state & 4294967279) >>> 0;
     if ((this._state & 8) !== 0)
-      return;
+      return this._cancelFuture;
     this._cancel$0();
-    var t1 = this._state;
-    if ((t1 & 16) === 0) {
-      this._state = (t1 | 16) >>> 0;
-      this._onCancel$0();
-      this._pending = null;
-      this._state = (this._state & 4294967279) >>> 0;
-    }
+    return this._cancelFuture;
   },
   get$_mayResumeInput: function() {
-    if (this._state < 64) {
+    if (this._state < 128) {
       var t1 = this._pending;
       t1 = t1 == null || t1.get$isEmpty(t1);
     } else
       t1 = false;
     return t1;
   },
   _cancel$0: function() {
     this._state = (this._state | 8) >>> 0;
-    if ((this._state & 32) !== 0)
+    if ((this._state & 64) !== 0)
       this._pending.cancelSchedule$0();
+    if ((this._state & 32) === 0)
+      this._pending = null;
+    this._cancelFuture = this._onCancel$0();
   },
   _async$_add$1: function(data) {
     var t1 = this._state;
     if ((t1 & 8) !== 0)
       return;
-    if (t1 < 16)
+    if (t1 < 32)
       this._sendData$1(data);
     else
       this._addPending$1(new P._DelayedData(data, null));
   },
-  _addError$2: function(error, stackTrace) {
+  _close$0: function() {
     var t1 = this._state;
     if ((t1 & 8) !== 0)
       return;
-    if (t1 < 16)
-      this._sendError$2(error, stackTrace);
+    this._state = (t1 | 2) >>> 0;
+    if (this._state < 32)
+      this._sendDone$0();
     else
-      this._addPending$1(new P._DelayedError(error, stackTrace, null));
+      this._addPending$1(C.C__DelayedDone);
   },
   _onPause$0: function() {
   },
   get$_onPause: function() {
     return new P.BoundClosure$0(this, P._BufferingStreamSubscription.prototype._onPause$0, null, "_onPause$0");
   },
   _onResume$0: function() {
   },
   get$_onResume: function() {
     return new P.BoundClosure$0(this, P._BufferingStreamSubscription.prototype._onResume$0, null, "_onResume$0");
   },
   _onCancel$0: function() {
   },
   _addPending$1: function($event) {
     var pending, t1;
     pending = this._pending;
     if (pending == null) {
       pending = new P._StreamImplEvents(null, null, 0);
       this._pending = pending;
     }
     pending.add$1(pending, $event);
     t1 = this._state;
-    if ((t1 & 32) === 0) {
-      this._state = (t1 | 32) >>> 0;
-      if (this._state < 64)
+    if ((t1 & 64) === 0) {
+      this._state = (t1 | 64) >>> 0;
+      if (this._state < 128)
         this._pending.schedule$1(this);
     }
   },
   _sendData$1: function(data) {
     var t1 = this._state;
-    this._state = (t1 | 16) >>> 0;
-    this._zone.runUnaryGuarded$2(this._onData, data);
-    this._state = (this._state & 4294967279) >>> 0;
+    this._state = (t1 | 32) >>> 0;
+    this._zone.runUnaryGuarded$2(this._async$_onData, data);
+    this._state = (this._state & 4294967263) >>> 0;
     this._checkState$1((t1 & 4) !== 0);
   },
-  _sendError$2: function(error, stackTrace) {
-    var t1, t2, t3, t4;
-    t1 = this._state;
-    this._state = (t1 | 16) >>> 0;
-    t2 = this._zone;
-    t3 = $.Zone__current;
-    t2.toString;
-    t3.toString;
-    if (t3 == null ? t2 != null : t3 !== t2)
-      P._rootHandleUncaughtError(t3, null, t3, error, stackTrace);
-    else {
-      t3 = this._onError;
-      t4 = J.getInterceptor(t3);
-      if (!!t4.$is_args2)
-        t2.runBinaryGuarded$3(t3, error, stackTrace);
-      else
-        t2.runUnaryGuarded$2(t3, error);
-    }
-    this._state = (this._state & 4294967279) >>> 0;
-    if ((this._state & 1) !== 0)
-      this._cancel$0();
-    this._checkState$1((t1 & 4) !== 0);
+  _sendDone$0: function() {
+    var t1, t2, t3;
+    t1 = new P._BufferingStreamSubscription__sendDone_sendDone(this);
+    this._cancel$0();
+    this._state = (this._state | 16) >>> 0;
+    t2 = this._cancelFuture;
+    t3 = J.getInterceptor(t2);
+    if (typeof t2 === "object" && t2 !== null && !!t3.$isFuture)
+      t2.whenComplete$1(t1);
+    else
+      t1.call$0();
   },
   _guardCallback$1: function(callback) {
     var t1 = this._state;
-    this._state = (t1 | 16) >>> 0;
+    this._state = (t1 | 32) >>> 0;
     callback.call$0();
-    this._state = (this._state & 4294967279) >>> 0;
+    this._state = (this._state & 4294967263) >>> 0;
     this._checkState$1((t1 & 4) !== 0);
   },
   _checkState$1: function(wasInputPaused) {
     var t1, t2, isInputPaused;
     t1 = this._state;
-    if ((t1 & 32) !== 0) {
+    if ((t1 & 64) !== 0) {
       t2 = this._pending;
       t2 = t2.get$isEmpty(t2);
     } else
       t2 = false;
     if (t2) {
-      this._state = (t1 & 4294967263) >>> 0;
+      this._state = (t1 & 4294967231) >>> 0;
       if ((this._state & 4) !== 0 && this.get$_mayResumeInput())
         this._state = (this._state & 4294967291) >>> 0;
     }
     for (; true; wasInputPaused = isInputPaused) {
       t1 = this._state;
       if ((t1 & 8) !== 0) {
-        this._onCancel$0();
         this._pending = null;
         return;
       }
       isInputPaused = (t1 & 4) !== 0;
       if (wasInputPaused === isInputPaused)
         break;
-      this._state = (t1 ^ 16) >>> 0;
+      this._state = (t1 ^ 32) >>> 0;
       if (isInputPaused)
         this._onPause$0();
       else
         this._onResume$0();
-      this._state = (this._state & 4294967279) >>> 0;
+      this._state = (this._state & 4294967263) >>> 0;
     }
     t1 = this._state;
-    if ((t1 & 32) !== 0 && t1 < 64)
+    if ((t1 & 64) !== 0 && t1 < 128)
       this._pending.schedule$1(this);
   },
   static: {
-"": "_BufferingStreamSubscription__STATE_CANCEL_ON_ERROR,_BufferingStreamSubscription__STATE_CLOSED,_BufferingStreamSubscription__STATE_INPUT_PAUSED,_BufferingStreamSubscription__STATE_CANCELED,_BufferingStreamSubscription__STATE_IN_CALLBACK,_BufferingStreamSubscription__STATE_HAS_PENDING,_BufferingStreamSubscription__STATE_PAUSE_COUNT,_BufferingStreamSubscription__STATE_PAUSE_COUNT_SHIFT",
+"": "_BufferingStreamSubscription__STATE_CANCEL_ON_ERROR,_BufferingStreamSubscription__STATE_CLOSED,_BufferingStreamSubscription__STATE_INPUT_PAUSED,_BufferingStreamSubscription__STATE_CANCELED,_BufferingStreamSubscription__STATE_WAIT_FOR_CANCEL,_BufferingStreamSubscription__STATE_IN_CALLBACK,_BufferingStreamSubscription__STATE_HAS_PENDING,_BufferingStreamSubscription__STATE_PAUSE_COUNT,_BufferingStreamSubscription__STATE_PAUSE_COUNT_SHIFT",
 }
 
 },
 
+_BufferingStreamSubscription__sendDone_sendDone: {"": "Closure;this_0",
+  call$0: function() {
+    var t1, t2;
+    t1 = this.this_0;
+    t2 = t1._state;
+    if ((t2 & 16) === 0)
+      return;
+    t1._state = (t2 | 42) >>> 0;
+    t1._zone.runGuarded$1(t1._onDone);
+    t1._state = (t1._state & 4294967263) >>> 0;
+  }
+},
+
 _StreamImpl: {"": "Stream;",
   listen$4$cancelOnError$onDone$onError: function(onData, cancelOnError, onDone, onError) {
     var subscription = this._createSubscription$1(true === cancelOnError);
     subscription.onData$1(onData);
     subscription.onError$1(subscription, onError);
     subscription.onDone$1(onDone);
     return subscription;
   },
-  listen$2$onError: function(onData, onError) {
-    return this.listen$4$cancelOnError$onDone$onError(onData, null, null, onError);
-  },
   _createSubscription$1: function(cancelOnError) {
     var t1, t2;
     t1 = $.Zone__current;
     t2 = cancelOnError ? 1 : 0;
-    return new P._BufferingStreamSubscription(null, null, null, t1, t2, null);
+    return new P._BufferingStreamSubscription(null, null, null, t1, t2, null, null);
   },
   $asStream: null
 },
 
 _DelayedEvent: {"": "Object;next@"},
 
 _DelayedData: {"": "_DelayedEvent;value,next",
   perform$1: function(dispatch) {
     dispatch._sendData$1(this.value);
   }
 },
 
-_DelayedError: {"": "_DelayedEvent;error>,stackTrace<,next",
+_DelayedDone: {"": "Object;",
   perform$1: function(dispatch) {
-    dispatch._sendError$2(this.error, this.stackTrace);
+    dispatch._sendDone$0();
+  },
+  get$next: function() {
+    return;
+  },
+  set$next: function(_) {
+    throw H.wrapException(P.StateError$("No events after a done."));
   }
 },
 
 _PendingEvents: {"": "Object;",
   schedule$1: function(dispatch) {
     var t1 = this._state;
     if (t1 === 1)
       return;
     if (t1 >= 1) {
       this._state = 1;
@@ skipping 36 matching lines @@
   },
   handleNext$1: function(dispatch) {
     var $event = this.firstPendingEvent;
     this.firstPendingEvent = $event.get$next();
     if (this.firstPendingEvent == null)
       this.lastPendingEvent = null;
     $event.perform$1(dispatch);
   }
 },
 
-_cancelAndError_closure: {"": "Closure;subscription_0,future_1",
+_cancelAndError_closure: {"": "Closure;future_0,error_1,stackTrace_2",
+  call$0: function() {
+    return this.future_0._completeError$2(this.error_1, this.stackTrace_2);
+  }
+},
+
+_cancelAndErrorClosure_closure: {"": "Closure;subscription_0,future_1",
   call$2: function(error, stackTrace) {
-    this.subscription_0.cancel$0();
-    this.future_1._completeError$2(error, stackTrace);
+    return P._cancelAndError(this.subscription_0, this.future_1, error, stackTrace);
   },
   $is_args2: true
 },
 
+_cancelAndValue_closure: {"": "Closure;future_0,value_1",
+  call$0: function() {
+    return this.future_0._complete$1(this.value_1);
+  }
+},
+
 _BaseZone: {"": "Object;",
   runGuarded$1: function(f) {
     var e, s, t1, exception;
     try {
       t1 = this.run$1(f);
       return t1;
     } catch (exception) {
       t1 = H.unwrapException(exception);
       e = t1;
       s = new H._StackTrace(exception, null);
       return this.handleUncaughtError$2(e, s);
     }
 
   },
   runUnaryGuarded$2: function(f, arg) {
     var e, s, t1, exception;
     try {
       t1 = this.runUnary$2(f, arg);
       return t1;
     } catch (exception) {
       t1 = H.unwrapException(exception);
       e = t1;
       s = new H._StackTrace(exception, null);
       return this.handleUncaughtError$2(e, s);
     }
 
   },
-  runBinaryGuarded$3: function(f, arg1, arg2) {
-    var e, s, t1, exception;
-    try {
-      t1 = this.runBinary$3(f, arg1, arg2);
-      return t1;
-    } catch (exception) {
-      t1 = H.unwrapException(exception);
-      e = t1;
-      s = new H._StackTrace(exception, null);
-      return this.handleUncaughtError$2(e, s);
-    }
-
-  },
   bindCallback$2$runGuarded: function(f, runGuarded) {
     var registered = this.registerCallback$1(f);
     if (runGuarded)
       return new P._BaseZone_bindCallback_closure(this, registered);
     else
       return new P._BaseZone_bindCallback_closure0(this, registered);
+  },
+  bindUnaryCallback$2$runGuarded: function(f, runGuarded) {
+    var registered = this.registerUnaryCallback$1(f);
+    if (runGuarded)
+      return new P._BaseZone_bindUnaryCallback_closure(this, registered);
+    else
+      return new P._BaseZone_bindUnaryCallback_closure0(this, registered);
   }
 },
 
 _BaseZone_bindCallback_closure: {"": "Closure;this_0,registered_1",
   call$0: function() {
     return this.this_0.runGuarded$1(this.registered_1);
   }
 },
 
 _BaseZone_bindCallback_closure0: {"": "Closure;this_2,registered_3",
   call$0: function() {
     return this.this_2.run$1(this.registered_3);
   }
 },
 
+_BaseZone_bindUnaryCallback_closure: {"": "Closure;this_0,registered_1",
+  call$1: function(arg) {
+    return this.this_0.runUnaryGuarded$2(this.registered_1, arg);
+  },
+  $is_args1: true
+},
+
+_BaseZone_bindUnaryCallback_closure0: {"": "Closure;this_2,registered_3",
+  call$1: function(arg) {
+    return this.this_2.runUnary$2(this.registered_3, arg);
+  },
+  $is_args1: true
+},
+
 _rootHandleUncaughtError_closure: {"": "Closure;error_0,stackTrace_1",
   call$0: function() {
+    P._scheduleAsyncCallback(new P._rootHandleUncaughtError__closure(this.error_0, this.stackTrace_1));
+  }
+},
+
+_rootHandleUncaughtError__closure: {"": "Closure;error_2,stackTrace_3",
+  call$0: function() {
     var t1, trace;
-    t1 = this.error_0;
+    t1 = this.error_2;
     P.print("Uncaught Error: " + H.S(t1));
-    trace = this.stackTrace_1;
+    trace = this.stackTrace_3;
     if (trace == null)
       trace = P.getAttachedStackTrace(t1);
     P._attachStackTrace(t1, null);
     if (trace != null)
       P.print("Stack Trace: \n" + H.S(trace) + "\n");
     throw H.wrapException(t1);
   }
 },
 
 _RootZone: {"": "_BaseZone;",
   $index: function(_, key) {
     return;
   },
   handleUncaughtError$2: function(error, stackTrace) {
     return P._rootHandleUncaughtError(this, null, this, error, stackTrace);
   },
   run$1: function(f) {
     return P._rootRun(this, null, this, f);
   },
   runUnary$2: function(f, arg) {
     return P._rootRunUnary(this, null, this, f, arg);
   },
-  runBinary$3: function(f, arg1, arg2) {
-    return P._rootRunBinary(this, null, this, f, arg1, arg2);
+  registerCallback$1: function(f) {
+    return f;
   },
-  registerCallback$1: function(f) {
+  registerUnaryCallback$1: function(f) {
     return f;
   }
 }}],
 ["dart.collection", "dart:collection", , P, {
 _HashSet__newHashTable: function() {
   var table = Object.create(null);
   table["<non-identifier-key>"] = table;
   delete table["<non-identifier-key>"];
   return table;
 },
 
 _defaultEquals: function(a, b) {
   return J.$eq(a, b);
 },
 
 _defaultHashCode: function(a) {
   return J.get$hashCode$(a);
 },
 
 HashMap_HashMap: function(equals, hashCode, isValidKey, $K, $V) {
   var t1 = new P._HashMap(0, null, null, null, null);
   H.setRuntimeTypeInfo(t1, [$K, $V]);
   return t1;
 },
 
 _iterableToString: function(iterable) {
-  var LENGTH_LIMIT, MIN_COUNT, MAX_COUNT, OVERHEAD, ELLIPSIS_SIZE, result, $length, count, it, next, penultimateString, ultimateString, penultimate, ultimate, elision, t1, t2, t3, t4;
-  LENGTH_LIMIT = 80;
-  MIN_COUNT = 3;
-  MAX_COUNT = 100;
-  OVERHEAD = 2;
-  ELLIPSIS_SIZE = 3;
+  var parts, t1;
   t1 = $.get$_toStringVisiting();
   if (t1.contains$1(t1, iterable))
     return "(...)";
   t1 = $.get$_toStringVisiting();
   t1.add$1(t1, iterable);
-  result = [];
+  parts = [];
   try {
-    $building$0: {
-      $length = 0;
-      count = 0;
-      it = J.get$iterator$ax(iterable);
-      while (true) {
-        t1 = count;
-        t2 = MIN_COUNT;
-        if (typeof t1 !== "number")
-          throw t1.$lt();
-        if (typeof t2 !== "number")
-          throw H.iae(t2);
-        if (!(t1 < t2)) {
-          t1 = $length;
-          t2 = LENGTH_LIMIT;
-          if (typeof t1 !== "number")
-            throw t1.$lt();
-          if (typeof t2 !== "number")
-            throw H.iae(t2);
-          t2 = t1 < t2;
-          t1 = t2;
-        } else
-          t1 = true;
-        if (!t1)
-          break;
-        if (!it.moveNext$0())
-          break $building$0;
-        next = H.S(it.get$current());
-        J.add$1$ax(result, next);
-        t1 = $length;
-        t2 = J.get$length$asx(next);
-        t3 = OVERHEAD;
-        if (typeof t2 !== "number")
-          throw t2.$add();
-        if (typeof t3 !== "number")
-          throw H.iae(t3);
-        if (typeof t1 !== "number")
-          throw t1.$add();
-        $length = t1 + (t2 + t3);
-        t3 = count;
-        if (typeof t3 !== "number")
-          throw t3.$add();
-        count = t3 + 1;
-      }
-      penultimateString = null;
-      ultimateString = null;
-      penultimate = null;
-      ultimate = null;
-      if (!it.moveNext$0()) {
-        t1 = count;
-        t2 = MIN_COUNT;
-        if (typeof t2 !== "number")
-          throw t2.$add();
-        if (typeof t1 !== "number")
-          throw t1.$le();
-        if (t1 <= t2 + 2)
-          break $building$0;
-        ultimateString = J.removeLast$0$ax(result);
-        penultimateString = J.removeLast$0$ax(result);
-      } else {
-        penultimate = it.get$current();
-        t1 = count;
-        if (typeof t1 !== "number")
-          throw t1.$add();
-        count = t1 + 1;
-        if (!it.moveNext$0()) {
-          t1 = count;
-          t2 = MIN_COUNT;
-          if (typeof t2 !== "number")
-            throw t2.$add();
-          if (typeof t1 !== "number")
-            throw t1.$le();
-          if (t1 <= t2 + 1) {
-            J.add$1$ax(result, H.S(penultimate));
-            break $building$0;
-          }
-          ultimateString = H.S(penultimate);
-          penultimateString = J.removeLast$0$ax(result);
-          t1 = $length;
-          t2 = J.get$length$asx(ultimateString);
-          t3 = OVERHEAD;
-          if (typeof t2 !== "number")
-            throw t2.$add();
-          if (typeof t3 !== "number")
-            throw H.iae(t3);
-          if (typeof t1 !== "number")
-            throw t1.$add();
-          $length = t1 + (t2 + t3);
-        } else {
-          ultimate = it.get$current();
-          t1 = count;
-          if (typeof t1 !== "number")
-            throw t1.$add();
-          count = t1 + 1;
-          for (; it.moveNext$0();) {
-            penultimate = ultimate;
-            ultimate = it.get$current();
-            t1 = count;
-            if (typeof t1 !== "number")
-              throw t1.$add();
-            count = t1 + 1;
-            t1 = count;
-            t2 = MAX_COUNT;
-            if (typeof t1 !== "number")
-              throw t1.$gt();
-            if (typeof t2 !== "number")
-              throw H.iae(t2);
-            if (t1 > t2) {
-              while (true) {
-                t1 = $length;
-                t2 = LENGTH_LIMIT;
-                t3 = ELLIPSIS_SIZE;
-                if (typeof t2 !== "number")
-                  throw t2.$sub();
-                if (typeof t3 !== "number")
-                  throw H.iae(t3);
-                t4 = OVERHEAD;
-                if (typeof t4 !== "number")
-                  throw H.iae(t4);
-                if (typeof t1 !== "number")
-                  throw t1.$gt();
-                if (t1 > t2 - t3 - t4) {
-                  t1 = count;
-                  t2 = MIN_COUNT;
-                  if (typeof t1 !== "number")
-                    throw t1.$gt();
-                  if (typeof t2 !== "number")
-                    throw H.iae(t2);
-                  t2 = t1 > t2;
-                  t1 = t2;
-                } else
-                  t1 = false;
-                if (!t1)
-                  break;
-                t1 = $length;
-                t2 = J.get$length$asx(J.removeLast$0$ax(result));
-                t3 = OVERHEAD;
-                if (typeof t2 !== "number")
-                  throw t2.$add();
-                if (typeof t3 !== "number")
-                  throw H.iae(t3);
-                if (typeof t1 !== "number")
-                  throw t1.$sub();
-                $length = t1 - (t2 + t3);
-                t3 = count;
-                if (typeof t3 !== "number")
-                  throw t3.$sub();
-                count = t3 - 1;
-              }
-              J.add$1$ax(result, "...");
-              break $building$0;
-            }
-          }
-          penultimateString = H.S(penultimate);
-          ultimateString = H.S(ultimate);
-          t1 = $length;
-          t2 = J.get$length$asx(ultimateString);
-          t3 = J.get$length$asx(penultimateString);
-          if (typeof t2 !== "number")
-            throw t2.$add();
-          if (typeof t3 !== "number")
-            throw H.iae(t3);
-          t4 = OVERHEAD;
-          if (typeof t4 !== "number")
-            throw H.iae(t4);
-          if (typeof t1 !== "number")
-            throw t1.$add();
-          $length = t1 + (t2 + t3 + 2 * t4);
-        }
-      }
-      elision = null;
-      t1 = count;
-      t2 = J.get$length$asx(result);
-      if (typeof t2 !== "number")
-        throw t2.$add();
-      if (typeof t1 !== "number")
-        throw t1.$gt();
-      if (t1 > t2 + 2) {
-        elision = "...";
-        t1 = $length;
-        t2 = ELLIPSIS_SIZE;
-        t3 = OVERHEAD;
-        if (typeof t2 !== "number")
-          throw t2.$add();
-        if (typeof t3 !== "number")
-          throw H.iae(t3);
-        if (typeof t1 !== "number")
-          throw t1.$add();
-        $length = t1 + (t2 + t3);
-      }
-      while (true) {
-        t1 = $length;
-        t2 = LENGTH_LIMIT;
-        if (typeof t1 !== "number")
-          throw t1.$gt();
-        if (typeof t2 !== "number")
-          throw H.iae(t2);
-        if (t1 > t2) {
-          t1 = J.get$length$asx(result);
-          t2 = MIN_COUNT;
-          if (typeof t1 !== "number")
-            throw t1.$gt();
-          if (typeof t2 !== "number")
-            throw H.iae(t2);
-          t2 = t1 > t2;
-          t1 = t2;
-        } else
-          t1 = false;
-        if (!t1)
-          break;
-        t1 = $length;
-        t2 = J.get$length$asx(J.removeLast$0$ax(result));
-        t3 = OVERHEAD;
-        if (typeof t2 !== "number")
-          throw t2.$add();
-        if (typeof t3 !== "number")
-          throw H.iae(t3);
-        if (typeof t1 !== "number")
-          throw t1.$sub();
-        $length = t1 - (t2 + t3);
-        if (elision == null) {
-          elision = "...";
-          t1 = $length;
-          t2 = ELLIPSIS_SIZE;
-          t3 = OVERHEAD;
-          if (typeof t2 !== "number")
-            throw t2.$add();
-          if (typeof t3 !== "number")
-            throw H.iae(t3);
-          if (typeof t1 !== "number")
-            throw t1.$add();
-          $length = t1 + (t2 + t3);
-        }
-      }
-      if (elision != null)
-        J.add$1$ax(result, elision);
-      J.add$1$ax(result, penultimateString);
-      J.add$1$ax(result, ultimateString);
-    }
+    P._iterablePartsToStrings(iterable, parts);
   } finally {
     t1 = $.get$_toStringVisiting();
     t1.remove$1(t1, iterable);
   }
   t1 = P.StringBuffer$("(");
-  t1.writeAll$2(result, ", ");
+  t1.writeAll$2(parts, ", ");
   t1.write$1(")");
   return t1._contents;
 },
 
+_iterablePartsToStrings: function(iterable, parts) {
+  var it, $length, count, next, ultimateString, penultimateString, penultimate, ultimate, ultimate0, elision;
+  it = iterable.get$iterator(iterable);
+  $length = 0;
+  count = 0;
+  while (true) {
+    if (!($length < 80 || count < 3))
+      break;
+    if (!it.moveNext$0())
+      return;
+    next = H.S(it.get$current());
+    parts.push(next);
+    $length += next.length + 2;
+    ++count;
+  }
+  if (!it.moveNext$0()) {
+    if (count <= 5)
+      return;
+    if (0 >= parts.length)
+      throw H.ioore(parts, 0);
+    ultimateString = parts.pop();
+    if (0 >= parts.length)
+      throw H.ioore(parts, 0);
+    penultimateString = parts.pop();
+  } else {
+    penultimate = it.get$current();
+    ++count;
+    if (!it.moveNext$0()) {
+      if (count <= 4) {
+        parts.push(H.S(penultimate));
+        return;
+      }
+      ultimateString = H.S(penultimate);
+      if (0 >= parts.length)
+        throw H.ioore(parts, 0);
+      penultimateString = parts.pop();
+      $length += ultimateString.length + 2;
+    } else {
+      ultimate = it.get$current();
+      ++count;
+      for (; it.moveNext$0(); penultimate = ultimate, ultimate = ultimate0) {
+        ultimate0 = it.get$current();
+        ++count;
+        if (count > 100) {
+          while (true) {
+            if (!($length > 75 && count > 3))
+              break;
+            if (0 >= parts.length)
+              throw H.ioore(parts, 0);
+            $length -= parts.pop().length + 2;
+            --count;
+          }
+          parts.push("...");
+          return;
+        }
+      }
+      penultimateString = H.S(penultimate);
+      ultimateString = H.S(ultimate);
+      $length += ultimateString.length + penultimateString.length + 4;
+    }
+  }
+  if (count > parts.length + 2) {
+    $length += 5;
+    elision = "...";
+  } else
+    elision = null;
+  while (true) {
+    if (!($length > 80 && parts.length > 3))
+      break;
+    if (0 >= parts.length)
+      throw H.ioore(parts, 0);
+    $length -= parts.pop().length + 2;
+    if (elision == null) {
+      $length += 5;
+      elision = "...";
+    }
+  }
+  if (elision != null)
+    parts.push(elision);
+  parts.push(penultimateString);
+  parts.push(ultimateString);
+},
+
 LinkedHashMap_LinkedHashMap: function(equals, hashCode, isValidKey, $K, $V) {
   var t1 = new P._LinkedHashMap(0, null, null, null, null, null, 0);
   H.setRuntimeTypeInfo(t1, [$K, $V]);
   return t1;
 },
 
 Maps_mapToString: function(m) {
   var t1, result, i, t2;
   t1 = {};
   for (i = 0; i < $.get$Maps__toStringList().length; ++i) {
@@ skipping 16 matching lines @@
       throw H.ioore(t1, 0);
     t1.pop();
   }
   return result.get$_contents();
 },
 
 _HashMap: {"": "Object;_collection$_length,_strings,_nums,_rest,_keys",
   get$length: function(_) {
     return this._collection$_length;
   },
-  get$keys: function() {
+  get$isEmpty: function(_) {
+    return this._collection$_length === 0;
+  },
+  get$keys: function(_) {
     var t1 = new P.HashMapKeyIterable(this);
     H.setRuntimeTypeInfo(t1, [H.getRuntimeTypeArgument(this, "_HashMap", 0)]);
     return t1;
   },
   get$values: function(_) {
     var t1 = new P.HashMapKeyIterable(this);
     H.setRuntimeTypeInfo(t1, [H.getRuntimeTypeArgument(this, "_HashMap", 0)]);
     return H.MappedIterable_MappedIterable(t1, new P._HashMap_values_closure(this), H.getRuntimeTypeArgument(t1, "IterableBase", 0), null);
   },
   $index: function(_, key) {
@@ skipping 130 matching lines @@
     var $length, i;
     if (bucket == null)
       return -1;
     $length = bucket.length;
     for (i = 0; i < $length; i += 2)
       if (J.$eq(bucket[i], key))
         return i;
     return -1;
   },
   $isMap: true,
+  $asMap: null,
   static: {
 _HashMap__setTableEntry: function(table, key, value) {
   if (value == null)
     table[key] = table;
   else
     table[key] = value;
 },
 
 _HashMap__newHashTable: function() {
   var table = Object.create(null);
   P._HashMap__setTableEntry(table, "<non-identifier-key>", table);
   delete table["<non-identifier-key>"];
   return table;
 }}
 
 },
 
 _HashMap_values_closure: {"": "Closure;this_0",
   call$1: function(each) {
     var t1 = this.this_0;
     return t1.$index(t1, each);
-  }
+  },
+  $is_args1: true
 },
 
 HashMapKeyIterable: {"": "IterableBase;_map",
   get$length: function(_) {
     return this._map._collection$_length;
   },
+  get$isEmpty: function(_) {
+    return this._map._collection$_length === 0;
+  },
   get$iterator: function(_) {
     var t1 = this._map;
     return new P.HashMapKeyIterator(t1, t1._computeKeys$0(), 0, null);
   },
   forEach$1: function(_, f) {
     var t1, keys, $length, i;
     t1 = this._map;
     keys = t1._computeKeys$0();
     for ($length = keys.length, i = 0; i < $length; ++i) {
       f.call$1(keys[i]);
@@ skipping 24 matching lines @@
       this._offset = offset + 1;
       return true;
     }
   }
 },
 
 _LinkedHashMap: {"": "Object;_collection$_length,_strings,_nums,_rest,_first,_last,_modifications",
   get$length: function(_) {
     return this._collection$_length;
   },
-  get$keys: function() {
+  get$isEmpty: function(_) {
+    return this._collection$_length === 0;
+  },
+  get$keys: function(_) {
     var t1 = new P.LinkedHashMapKeyIterable(this);
     H.setRuntimeTypeInfo(t1, [H.getRuntimeTypeArgument(this, "_LinkedHashMap", 0)]);
     return t1;
   },
   get$values: function(_) {
     var t1 = new P.LinkedHashMapKeyIterable(this);
     H.setRuntimeTypeInfo(t1, [H.getRuntimeTypeArgument(this, "_LinkedHashMap", 0)]);
     return H.MappedIterable_MappedIterable(t1, new P._LinkedHashMap_values_closure(this), H.getRuntimeTypeArgument(t1, "IterableBase", 0), null);
   },
-  containsKey$1: function(key) {
+  containsKey$1: function(_, key) {
     var nums, rest;
     if ((key & 0x3ffffff) === key) {
       nums = this._nums;
       if (nums == null)
         return false;
       return nums[key] != null;
     } else {
       rest = this._rest;
       if (rest == null)
         return false;
@@ skipping 141 matching lines @@
   },
   _computeHashCode$1: function(key) {
     return J.get$hashCode$(key) & 0x3ffffff;
   },
   _findBucketIndex$2: function(bucket, key) {
     var $length, i;
     if (bucket == null)
       return -1;
     $length = bucket.length;
     for (i = 0; i < $length; ++i)
-      if (J.$eq(bucket[i].get$_key(), key))
+      if (J.$eq(J.get$_key$x(bucket[i]), key))
         return i;
     return -1;
   },
   toString$0: function(_) {
     return P.Maps_mapToString(this);
   },
   $isMap: true,
+  $asMap: null,
   static: {
 _LinkedHashMap__newHashTable: function() {
   var table = Object.create(null);
   table["<non-identifier-key>"] = table;
   delete table["<non-identifier-key>"];
   return table;
 }}
 
 },
 
 _LinkedHashMap_values_closure: {"": "Closure;this_0",
   call$1: function(each) {
     var t1 = this.this_0;
     return t1.$index(t1, each);
-  }
+  },
+  $is_args1: true
 },
 
-LinkedHashMapCell: {"": "Object;_key<,_collection$_value@,_next<,_previous<"},
+LinkedHashMapCell: {"": "Object;_key>,_collection$_value@,_next<,_previous<"},
 
 LinkedHashMapKeyIterable: {"": "IterableBase;_map",
   get$length: function(_) {
     return this._map._collection$_length;
   },
+  get$isEmpty: function(_) {
+    return this._map._collection$_length === 0;
+  },
   get$iterator: function(_) {
     var t1 = this._map;
     t1 = new P.LinkedHashMapKeyIterator(t1, t1._modifications, null, null);
     t1._cell = t1._map._first;
     return t1;
   },
   forEach$1: function(_, f) {
     var t1, cell, modifications;
     t1 = this._map;
     cell = t1._first;
@@ skipping 31 matching lines @@
   }
 },
 
 _HashSet: {"": "_HashSetBase;",
   get$iterator: function(_) {
     return new P.HashSetIterator(this, this._computeElements$0(), 0, null);
   },
   get$length: function(_) {
     return this._collection$_length;
   },
+  get$isEmpty: function(_) {
+    return this._collection$_length === 0;
+  },
   contains$1: function(_, object) {
     var strings, nums, rest;
     if (typeof object === "string" && object !== "__proto__") {
       strings = this._strings;
       return strings == null ? false : strings[object] != null;
     } else if (typeof object === "number" && (object & 0x3ffffff) === object) {
       nums = this._nums;
       return nums == null ? false : nums[object] != null;
     } else {
       rest = this._rest;
@@ skipping 167 matching lines @@
   return t1;
 }}
 },
 
 IterableBase: {"": "Object;",
   forEach$1: function(_, f) {
     var t1;
     for (t1 = this.get$iterator(this); t1.moveNext$0();)
       f.call$1(t1.get$current());
   },
+  toList$1$growable: function(_, growable) {
+    return P.List_List$from(this, growable, H.getRuntimeTypeArgument(this, "IterableBase", 0));
+  },
+  toList$0: function($receiver) {
+    return this.toList$1$growable($receiver, true);
+  },
   get$length: function(_) {
     var it, count;
     it = this.get$iterator(this);
     for (count = 0; it.moveNext$0();)
       ++count;
     return count;
   },
+  get$isEmpty: function(_) {
+    return !this.get$iterator(this).moveNext$0();
+  },
   elementAt$1: function(_, index) {
     var t1, remaining, element;
     if (index < 0)
       throw H.wrapException(P.RangeError$value(index));
     for (t1 = this.get$iterator(this), remaining = index; t1.moveNext$0();) {
       element = t1.get$current();
       if (remaining === 0)
         return element;
       --remaining;
     }
     throw H.wrapException(P.RangeError$value(index));
   },
   toString$0: function(_) {
     return P._iterableToString(this);
   }
 },
 
 ListMixin: {"": "Object;",
   get$iterator: function(receiver) {
     return new H.ListIterator(receiver, this.get$length(receiver), 0, null);
   },
   elementAt$1: function(receiver, index) {
     return this.$index(receiver, index);
   },
   forEach$1: function(receiver, action) {
     var $length, i;
-    if (typeof receiver !== "string" && (typeof receiver !== "object" || receiver === null || receiver.constructor !== Array && !H.isJsIndexable(receiver, receiver[init.dispatchPropertyName])))
-      return this.forEach$1$bailout(1, receiver, action);
-    $length = C.JS_CONST_ZYJ(receiver);
-    for (i = 0; i < $length; ++i) {
-      if (i >= C.JS_CONST_ZYJ(receiver))
-        throw H.ioore(receiver, i);
-      action.call$1(receiver[i]);
-      if ($length !== C.JS_CONST_ZYJ(receiver))
-        throw H.wrapException(P.ConcurrentModificationError$(receiver));
-    }
-  },
-  forEach$1$bailout: function(state0, receiver, action) {
-    var $length, i;
     $length = this.get$length(receiver);
     for (i = 0; i < $length; ++i) {
       action.call$1(this.$index(receiver, i));
       if ($length !== this.get$length(receiver))
         throw H.wrapException(P.ConcurrentModificationError$(receiver));
     }
   },
-  add$1: function(receiver, element) {
-    var t1 = this.get$length(receiver);
-    this.set$length(receiver, t1 + 1);
-    this.$indexSet(receiver, t1, element);
-  },
-  removeLast$0: function(receiver) {
-    var result;
-    if (this.get$length(receiver) === 0)
-      throw H.wrapException(P.StateError$("No elements"));
-    result = this.$index(receiver, this.get$length(receiver) - 1);
-    this.set$length(receiver, this.get$length(receiver) - 1);
-    return result;
+  get$isEmpty: function(receiver) {
+    return this.get$length(receiver) === 0;
   },
   toString$0: function(receiver) {
     var result, t1;
     t1 = $.get$_toStringVisiting();
     if (t1.contains$1(t1, receiver))
       return "[...]";
     result = P.StringBuffer$("");
     try {
       t1 = $.get$_toStringVisiting();
       t1.add$1(t1, receiver);
@@ skipping 34 matching lines @@
     modificationCount = this._modificationCount;
     for (i = this._head; i !== this._tail; i = (i + 1 & this._table.length - 1) >>> 0) {
       t1 = this._table;
       if (i < 0 || i >= t1.length)
         throw H.ioore(t1, i);
       action.call$1(t1[i]);
       if (modificationCount !== this._modificationCount)
         H.throwExpression(P.ConcurrentModificationError$(this));
     }
   },
+  get$isEmpty: function(_) {
+    return this._head === this._tail;
+  },
   get$length: function(_) {
     return (this._tail - this._head & this._table.length - 1) >>> 0;
   },
-  add$1: function(_, element) {
-    this._add$1(element);
-  },
   toString$0: function(_) {
     return H.IterableMixinWorkaround_toStringIterable(this, "{", "}");
   },
   removeFirst$0: function() {
     var t1, t2, t3, result;
     if (this._head === this._tail)
       throw H.wrapException(P.StateError$("No elements"));
     this._modificationCount = this._modificationCount + 1;
     t1 = this._table;
     t2 = this._head;
     t3 = t1.length;
     if (t2 < 0 || t2 >= t3)
       throw H.ioore(t1, t2);
     result = t1[t2];
     this._head = (t2 + 1 & t3 - 1) >>> 0;
     return result;
   },
-  removeLast$0: function(_) {
-    var t1, t2;
-    if (this._head === this._tail)
-      throw H.wrapException(P.StateError$("No elements"));
-    this._modificationCount = this._modificationCount + 1;
-    this._tail = (this._tail - 1 & this._table.length - 1) >>> 0;
-    t1 = this._table;
-    t2 = this._tail;
-    if (t2 < 0 || t2 >= t1.length)
-      throw H.ioore(t1, t2);
-    return t1[t2];
-  },
   _add$1: function(element) {
     var t1, t2, t3;
     t1 = this._table;
     t2 = this._tail;
     t3 = t1.length;
     if (t2 < 0 || t2 >= t3)
       throw H.ioore(t1, t2);
     t1[t2] = element;
     this._tail = (t2 + 1 & t3 - 1) >>> 0;
     if (this._head === this._tail)
@@ skipping 53 matching lines @@
     this._collection$_current = t3[t2];
     this._position = (this._position + 1 & t1._table.length - 1) >>> 0;
     return true;
   },
   static: {
 _ListQueueIterator$: function(queue) {
   return new P._ListQueueIterator(queue, queue._tail, queue._modificationCount, queue._head, null);
 }}
 
 }}],
+["dart.convert", "dart:convert", , P, {
+_convertJsonToDart: function(json, reviver) {
+  var revive = new P._convertJsonToDart_closure();
+  return revive.call$2(null, new P._convertJsonToDart_walk(revive).call$1(json));
+},
+
+_parseJson: function(source, reviver) {
+  var parsed, e, t1, exception;
+  t1 = source;
+  if (typeof t1 !== "string")
+    throw H.wrapException(new P.ArgumentError(source));
+  parsed = null;
+  try {
+    parsed = JSON.parse(source);
+  } catch (exception) {
+    t1 = H.unwrapException(exception);
+    e = t1;
+    throw H.wrapException(P.FormatException$(String(e)));
+  }
+
+  return P._convertJsonToDart(parsed, reviver);
+},
+
+_convertJsonToDart_closure: {"": "Closure;",
+  call$2: function(key, value) {
+    return value;
+  },
+  $is_args2: true
+},
+
+_convertJsonToDart_walk: {"": "Closure;revive_0",
+  call$1: function(e) {
+    var list, t1, i, keys, map, key, proto;
+    if (e == null || typeof e != "object")
+      return e;
+    if (Object.getPrototypeOf(e) === Array.prototype) {
+      list = e;
+      for (t1 = this.revive_0, i = 0; i < list.length; ++i)
+        list[i] = t1.call$2(i, this.call$1(list[i]));
+      return list;
+    }
+    keys = Object.keys(e);
+    map = H.fillLiteralMap([], P.LinkedHashMap_LinkedHashMap(null, null, null, null, null));
+    for (t1 = this.revive_0, i = 0; i < keys.length; ++i) {
+      key = keys[i];
+      map.$indexSet(map, key, t1.call$2(key, this.call$1(e[key])));
+    }
+    proto = e.__proto__;
+    if (typeof proto !== "undefined" && proto !== Object.prototype)
+      map.$indexSet(map, "__proto__", t1.call$2("__proto__", this.call$1(proto)));
+    return map;
+  },
+  $is_args1: true
+},
+
+Codec: {"": "Object;"},
+
+Converter: {"": "Object;"},
+
+JsonCodec: {"": "Codec;",
+  decode$2$reviver: function(source, reviver) {
+    return P._parseJson(source, C.JsonDecoder_null._reviver);
+  },
+  decode$1: function(source) {
+    return this.decode$2$reviver(source, null);
+  }
+},
+
+JsonDecoder: {"": "Converter;_reviver"}}],
 ["dart.core", "dart:core", , P, {
 _symbolToString: function(symbol) {
   return H.Symbol_getName(symbol);
 },
 
 Error_safeToString: function(object) {
   var buffer, t1, i, codeUnit, t2, charCodes;
   if (typeof object === "number" && Math.floor(object) === object || typeof object === "number" || typeof object === "boolean" || null == object)
     return J.toString$0(object);
   if (typeof object === "string") {
@@ skipping 48 matching lines @@
 },
 
 identityHashCode: function(object) {
   return H.objectHashCode(object);
 },
 
 List_List: function($length, $E) {
   if ($length == null)
     return new Array(0);
   if (typeof $length !== "number" || Math.floor($length) !== $length || $length < 0)
-    throw H.wrapException(P.ArgumentError$("Length must be a positive integer: " + H.S($length) + "."));
+    throw H.wrapException(new P.ArgumentError("Length must be a positive integer: " + H.S($length) + "."));
   return H.Primitives_newFixedList($length);
 },
 
 List_List$filled: function($length, fill, $E) {
   var result, t1, i;
   if ($length < 0)
-    throw H.wrapException(P.ArgumentError$("Length must be a positive integer: " + $length + "."));
+    throw H.wrapException(new P.ArgumentError("Length must be a positive integer: " + $length + "."));
   result = H.Primitives_newFixedList($length);
   if ($length !== 0 && true)
     for (t1 = result.length, i = 0; i < t1; ++i)
       result[i] = fill;
   return result;
 },
 
 List_List$from: function(other, growable, $E) {
   var list, t1, $length, fixedList, t2, i, t3;
   list = P.List_List(null, $E);
@@ skipping 26 matching lines @@
     var t1 = this.box_0;
     if (t1.i_1 > 0)
       t1.sb_0.write$1(", ");
     t1.sb_0.write$1(P._symbolToString(key));
   },
   $is_args2: true
 },
 
 Duration: {"": "Object;_duration",
   $lt: function(_, other) {
-    var t1 = other.get$_duration();
-    if (typeof t1 !== "number")
-      throw H.iae(t1);
-    return C.JSNumber_methods.$lt(this._duration, t1);
+    return C.JSNumber_methods.$lt(this._duration, other.get$_duration());
   },
   $gt: function(_, other) {
-    var t1 = other.get$_duration();
-    if (typeof t1 !== "number")
-      throw H.iae(t1);
-    return C.JSNumber_methods.$gt(this._duration, t1);
+    return C.JSNumber_methods.$gt(this._duration, other.get$_duration());
   },
   $ge: function(_, other) {
-    var t1 = other.get$_duration();
-    if (typeof t1 !== "number")
-      throw H.iae(t1);
-    return C.JSNumber_methods.$ge(this._duration, t1);
+    return C.JSNumber_methods.$ge(this._duration, other.get$_duration());
   },
   $eq: function(_, other) {
     var t1;
     if (other == null)
       return false;
     t1 = J.getInterceptor(other);
     if (typeof other !== "object" || other === null || !t1.$isDuration)
       return false;
     return this._duration === other._duration;
   },
@@ skipping 27 matching lines @@
       return H.S(n);
     if (t1.$ge(n, 10000))
       return "0" + H.S(n);
     if (t1.$ge(n, 1000))
       return "00" + H.S(n);
     if (t1.$ge(n, 100))
       return "000" + H.S(n);
     if (t1.$gt(n, 10))
       return "0000" + H.S(n);
     return "00000" + H.S(n);
-  }
+  },
+  $is_args1: true
 },
 
 Duration_toString_twoDigits: {"": "Closure;",
   call$1: function(n) {
     if (J.$ge$n(n, 10))
       return H.S(n);
     return "0" + H.S(n);
-  }
+  },
+  $is_args1: true
 },
 
 Error: {"": "Object;",
   get$stackTrace: function() {
     return new H._StackTrace(this.$thrownJsError, null);
   },
   $isError: true
 },
 
 NullThrownError: {"": "Error;",
@@ skipping 51 matching lines @@
   return new P.StateError(message);
 }}
 
 },
 
 ConcurrentModificationError: {"": "Error;modifiedObject",
   toString$0: function(_) {
     var t1 = this.modifiedObject;
     if (t1 == null)
       return "Concurrent modification during iteration.";
-    return "Concurrent modification during iteration: " + H.S(P.Error_safeToString(t1)) + ".";
+    return "Concurrent modification during iteration: " + P.Error_safeToString(t1) + ".";
   },
   static: {
 ConcurrentModificationError$: function(modifiedObject) {
   return new P.ConcurrentModificationError(modifiedObject);
 }}
 
 },
 
 StackOverflowError: {"": "Object;",
   toString$0: function(_) {
@@ skipping 15 matching lines @@
 }}
 
 },
 
 _ExceptionImplementation: {"": "Object;message",
   toString$0: function(_) {
     var t1 = this.message;
     if (t1 == null)
       return "Exception";
     return "Exception: " + H.S(t1);
+  }
+},
+
+FormatException: {"": "Object;message",
+  toString$0: function(_) {
+    return "FormatException: " + this.message;
   },
-  $isException: true
+  static: {
+FormatException$: function(message) {
+  return new P.FormatException(message);
+}}
+
 },
 
 Expando: {"": "Object;name",
   toString$0: function(_) {
     return "Expando:" + this.name;
   },
   $index: function(_, object) {
     var values = H.Primitives_getProperty(object, "expando$values");
     return values == null ? null : H.Primitives_getProperty(values, this._getKey$0());
   },
@@ skipping 43 matching lines @@
     return H.Primitives_objectToString(this);
   }
 },
 
 StackTrace: {"": "Object;"},
 
 StringBuffer: {"": "Object;_contents<",
   get$length: function(_) {
     return this._contents.length;
   },
+  get$isEmpty: function(_) {
+    return this._contents.length === 0;
+  },
   write$1: function(obj) {
-    if (typeof obj !== "string")
-      return this.write$1$bailout(1, obj);
-    this._contents = this._contents + obj;
-  },
-  write$1$bailout: function(state0, obj) {
     var str = typeof obj === "string" ? obj : H.S(obj);
     this._contents = this._contents + str;
   },
   writeAll$2: function(objects, separator) {
     var iterator, str;
     iterator = J.get$iterator$ax(objects);
     if (!iterator.moveNext$0())
       return;
     if (separator.length === 0)
       do {
@@ skipping 21 matching lines @@
 StringBuffer$: function($content) {
   var t1 = new P.StringBuffer("");
   t1.StringBuffer$1($content);
   return t1;
 }}
 
 },
 
 Symbol: {"": "Object;"}}],
 ["dart.dom.html", "dart:html", , W, {
-Geolocation_getCurrentPosition_closure: {"": "Closure;this_0,completer_1",
-  call$1: function(position) {
-    var t1, t2;
-    t1 = C.Geolocation_methods._ensurePosition$1(this.this_0, position);
-    t2 = this.completer_1.future;
-    if (t2._state !== 0)
-      H.throwExpression(new P.StateError("Future already completed"));
-    t2._asyncComplete$1(t1);
-  }
+HttpRequest_getString: function(url, onProgress, withCredentials) {
+  return W.HttpRequest_request(url, null, null, onProgress, null, null, null, withCredentials).then$1(new W.HttpRequest_getString_closure());
 },
 
-Geolocation_getCurrentPosition_closure0: {"": "Closure;completer_2",
-  call$1: function(error) {
-    var t1 = this.completer_2.future;
-    if (t1._state !== 0)
-      H.throwExpression(new P.StateError("Future already completed"));
-    t1._asyncCompleteError$2(error, null);
-  }
+HttpRequest_request: function(url, method, mimeType, onProgress, requestHeaders, responseType, sendData, withCredentials) {
+  var t1, completer, xhr, t2;
+  t1 = W.HttpRequest;
+  completer = new P._AsyncCompleter(P._Future$(t1));
+  H.setRuntimeTypeInfo(completer, [t1]);
+  xhr = new XMLHttpRequest();
+  C.HttpRequest_methods.open$3$async(xhr, "GET", url, true);
+  t1 = new W._EventStream(xhr, C.EventStreamProvider_load._eventType, false);
+  H.setRuntimeTypeInfo(t1, [null]);
+  t2 = new W._EventStreamSubscription(0, t1._target, t1._eventType, W._wrapZone(new W.HttpRequest_request_closure(completer, xhr)), t1._useCapture);
+  H.setRuntimeTypeInfo(t2, [H.getRuntimeTypeArgument(t1, "_EventStream", 0)]);
+  t2._tryResume$0();
+  t2 = new W._EventStream(xhr, C.EventStreamProvider_error._eventType, false);
+  H.setRuntimeTypeInfo(t2, [null]);
+  t1 = completer.get$completeError();
+  t1 = new W._EventStreamSubscription(0, t2._target, t2._eventType, W._wrapZone(t1), t2._useCapture);
+  H.setRuntimeTypeInfo(t1, [H.getRuntimeTypeArgument(t2, "_EventStream", 0)]);
+  t1._tryResume$0();
+  xhr.send();
+  return completer.future;
 },
 
-Geolocation_watchPosition_closure0: {"": "Closure;box_0,this_1,options_2",
-  call$0: function() {
-    var t1, t2;
-    t1 = this.this_1;
-    t2 = this.box_0;
-    t2.watchId_0 = C.Geolocation_methods._watchPosition$3(t1, new W.Geolocation_watchPosition__closure(t2, t1), new W.Geolocation_watchPosition__closure0(t2), this.options_2);
-  }
+_convertNativeToDart_EventTarget: function(e) {
+  var $window, t1;
+  if (e == null)
+    return;
+  if ("setInterval" in e) {
+    $window = W._DOMWindowCrossFrame__createSafe(e);
+    t1 = J.getInterceptor($window);
+    if (typeof $window === "object" && $window !== null && !!t1.$isEventTarget)
+      return $window;
+    return;
+  } else
+    return e;
 },
 
-Geolocation_watchPosition__closure: {"": "Closure;box_0,this_3",
-  call$1: function(position) {
-    var t1, t2;
-    t1 = this.box_0.controller_1;
-    t2 = C.Geolocation_methods._ensurePosition$1(this.this_3, position);
-    if (t1._state >= 4)
-      H.throwExpression(t1._badEventState$0());
-    t1._async$_add$1(t2);
-  }
+_wrapZone: function(callback) {
+  var t1 = $.Zone__current;
+  if (t1 === C.C__RootZone)
+    return callback;
+  return t1.bindUnaryCallback$2$runGuarded(callback, true);
 },
 
-Geolocation_watchPosition__closure0: {"": "Closure;box_0",
-  call$1: function(error) {
-    this.box_0.controller_1.addError$1(error);
-  }
+HttpRequest_getString_closure: {"": "Closure;",
+  call$1: function(xhr) {
+    return J.get$responseText$x(xhr);
+  },
+  $is_args1: true
 },
 
-Geolocation_watchPosition_closure: {"": "Closure;box_0,this_4",
-  call$0: function() {
-    this.this_4.clearWatch(this.box_0.watchId_0);
-  }
+HttpRequest_request_closure0: {"": "Closure;xhr_0",
+  call$2: function(header, value) {
+    this.xhr_0.setRequestHeader(header, value);
+  },
+  $is_args2: true
 },
 
-_GeopositionWrapper: {"": "Object;_ptr",
-  get$coords: function(_) {
-    return this._ptr.coords;
+HttpRequest_request_closure: {"": "Closure;completer_1,xhr_2",
+  call$1: function(e) {
+    var t1, t2, t3;
+    t1 = this.xhr_2;
+    t2 = t1.status;
+    if (typeof t2 !== "number")
+      throw t2.$ge();
+    t2 = t2 >= 200 && t2 < 300 || t2 === 0 || t2 === 304;
+    t3 = this.completer_1;
+    if (t2) {
+      t2 = t3.future;
+      if (t2._state !== 0)
+        H.throwExpression(P.StateError$("Future already completed"));
+      t2._asyncComplete$1(t1);
+    } else {
+      t1 = t3.future;
+      if (t1._state !== 0)
+        H.throwExpression(P.StateError$("Future already completed"));
+      t1._asyncCompleteError$2(e, null);
+    }
   },
-  $isGeoposition: true
+  $is_args1: true
 },
 
-HtmlElement: {"": "Element;", "%": "HTMLAppletElement|HTMLBRElement|HTMLBaseElement|HTMLBaseFontElement|HTMLBodyElement|HTMLButtonElement|HTMLCanvasElement|HTMLContentElement|HTMLDListElement|HTMLDataListElement|HTMLDetailsElement|HTMLDialogElement|HTMLDirectoryElement|HTMLDivElement|HTMLEmbedElement|HTMLFieldSetElement|HTMLFontElement|HTMLFrameElement|HTMLFrameSetElement|HTMLHRElement|HTMLHeadElement|HTMLHeadingElement|HTMLHtmlElement|HTMLIFrameElement|HTMLImageElement|HTMLInputElement|HTMLKeygenElement|HTMLLIElement|HTMLLabelElement|HTMLLegendElement|HTMLLinkElement|HTMLMapElement|HTMLMarqueeElement|HTMLMenuElement|HTMLMetaElement|HTMLMeterElement|HTMLModElement|HTMLOListElement|HTMLOptGroupElement|HTMLOptionElement|HTMLOutputElement|HTMLParagraphElement|HTMLParamElement|HTMLPreElement|HTMLProgressElement|HTMLQuoteElement|HTMLScriptElement|HTMLShadowElement|HTMLSourceElement|HTMLSpanElement|HTMLStyleElement|HTMLTableCaptionElement|HTMLTableCellElement|HTMLTableColElement|HTMLTableDataCellElement|HTMLTableElement|HTMLTableHeaderCellElement|HTMLTableRowElement|HTMLTableSectionElement|HTMLTemplateElement|HTMLTextAreaElement|HTMLTitleElement|HTMLTrackElement|HTMLUListElement|HTMLUnknownElement;HTMLElement"},
+Storage_keys_closure: {"": "Closure;keys_0",
+  call$2: function(k, v) {
+    return this.keys_0.push(k);
+  },
+  $is_args2: true
+},
 
-AnchorElement: {"": "HtmlElement;",
+Storage_values_closure: {"": "Closure;values_0",
+  call$2: function(k, v) {
+    return this.values_0.push(v);
+  },
+  $is_args2: true
+},
+
+_EventStream: {"": "Stream;_target,_eventType,_useCapture",
+  listen$4$cancelOnError$onDone$onError: function(onData, cancelOnError, onDone, onError) {
+    var t1 = new W._EventStreamSubscription(0, this._target, this._eventType, W._wrapZone(onData), this._useCapture);
+    H.setRuntimeTypeInfo(t1, [H.getRuntimeTypeArgument(this, "_EventStream", 0)]);
+    t1._tryResume$0();
+    return t1;
+  },
+  $asStream: null
+},
+
+_ElementEventStreamImpl: {"": "_EventStream;_target,_eventType,_useCapture", $as_EventStream: null},
+
+_EventStreamSubscription: {"": "StreamSubscription;_pauseCount,_target,_eventType,_onData,_useCapture",
+  cancel$0: function() {
+    if (this._target == null)
+      return;
+    this._unlisten$0();
+    this._target = null;
+    this._onData = null;
+  },
+  _tryResume$0: function() {
+    var t1 = this._onData;
+    if (t1 != null && this._pauseCount <= 0)
+      J.addEventListener$3$x(this._target, this._eventType, t1, this._useCapture);
+  },
+  _unlisten$0: function() {
+    var t1 = this._onData;
+    if (t1 != null)
+      J.removeEventListener$3$x(this._target, this._eventType, t1, this._useCapture);
+  },
+  $asStreamSubscription: null
+},
+
+EventStreamProvider: {"": "Object;_eventType"},
+
+_DOMWindowCrossFrame: {"": "Object;_window", $isEventTarget: true, static: {
+_DOMWindowCrossFrame__createSafe: function(w) {
+  if (w === window)
+    return w;
+  else
+    return new W._DOMWindowCrossFrame(w);
+}}
+},
+
+HtmlElement: {"": "Element;", "%": "HTMLAppletElement|HTMLBRElement|HTMLBaseFontElement|HTMLBodyElement|HTMLCanvasElement|HTMLContentElement|HTMLDListElement|HTMLDataListElement|HTMLDetailsElement|HTMLDialogElement|HTMLDirectoryElement|HTMLDivElement|HTMLEmbedElement|HTMLFontElement|HTMLFrameElement|HTMLFrameSetElement|HTMLHRElement|HTMLHeadElement|HTMLHeadingElement|HTMLHtmlElement|HTMLIFrameElement|HTMLImageElement|HTMLLIElement|HTMLLabelElement|HTMLLegendElement|HTMLMapElement|HTMLMarqueeElement|HTMLMenuElement|HTMLMetaElement|HTMLMeterElement|HTMLModElement|HTMLOListElement|HTMLObjectElement|HTMLOutputElement|HTMLParagraphElement|HTMLParamElement|HTMLPreElement|HTMLProgressElement|HTMLQuoteElement|HTMLScriptElement|HTMLShadowElement|HTMLSourceElement|HTMLSpanElement|HTMLTableCaptionElement|HTMLTableCellElement|HTMLTableColElement|HTMLTableDataCellElement|HTMLTableElement|HTMLTableHeaderCellElement|HTMLTableRowElement|HTMLTableSectionElement|HTMLTemplateElement|HTMLTitleElement|HTMLTrackElement|HTMLUListElement|HTMLUnknownElement;HTMLElement"},
+
+AnchorElement: {"": "HtmlElement;target=",
   toString$0: function(receiver) {
     return receiver.toString();
   },
   "%": "HTMLAnchorElement"
 },
 
-AreaElement: {"": "HtmlElement;coords=", "%": "HTMLAreaElement"},
+AreaElement: {"": "HtmlElement;target=", "%": "HTMLAreaElement"},
 
-CloseEvent: {"": "Event;code=", "%": "CloseEvent"},
+BaseElement: {"": "HtmlElement;target=", "%": "HTMLBaseElement"},
 
-Coordinates: {"": "Interceptor;latitude=,longitude=", "%": "Coordinates"},
+ButtonElement: {"": "HtmlElement;disabled}", "%": "HTMLButtonElement"},
 
-CssFontFaceLoadEvent: {"": "Event;error=", "%": "CSSFontFaceLoadEvent"},
-
-DomError: {"": "Interceptor;", "%": ";DOMError"},
+CharacterData: {"": "Node;length=", "%": "CDATASection|Comment|Text;CharacterData"},
 
 DomException: {"": "Interceptor;",
   toString$0: function(receiver) {
     return receiver.toString();
   },
   "%": "DOMException"
 },
 
 Element: {"": "Node;",
   toString$0: function(receiver) {
     return receiver.localName;
   },
-  "%": "SVGAElement|SVGAltGlyphDefElement|SVGAltGlyphElement|SVGAltGlyphItemElement|SVGAnimateColorElement|SVGAnimateElement|SVGAnimateMotionElement|SVGAnimateTransformElement|SVGAnimationElement|SVGCircleElement|SVGClipPathElement|SVGComponentTransferFunctionElement|SVGCursorElement|SVGDefsElement|SVGDescElement|SVGElement|SVGEllipseElement|SVGFEBlendElement|SVGFEColorMatrixElement|SVGFEComponentTransferElement|SVGFECompositeElement|SVGFEConvolveMatrixElement|SVGFEDiffuseLightingElement|SVGFEDisplacementMapElement|SVGFEDistantLightElement|SVGFEDropShadowElement|SVGFEFloodElement|SVGFEFuncAElement|SVGFEFuncBElement|SVGFEFuncGElement|SVGFEFuncRElement|SVGFEGaussianBlurElement|SVGFEImageElement|SVGFEMergeElement|SVGFEMergeNodeElement|SVGFEMorphologyElement|SVGFEOffsetElement|SVGFEPointLightElement|SVGFESpecularLightingElement|SVGFESpotLightElement|SVGFETileElement|SVGFETurbulenceElement|SVGFilterElement|SVGFontElement|SVGFontFaceElement|SVGFontFaceFormatElement|SVGFontFaceNameElement|SVGFontFaceSrcElement|SVGFontFaceUriElement|SVGForeignObjectElement|SVGGElement|SVGGlyphElement|SVGGlyphRefElement|SVGGradientElement|SVGGraphicsElement|SVGHKernElement|SVGImageElement|SVGLineElement|SVGLinearGradientElement|SVGMPathElement|SVGMarkerElement|SVGMaskElement|SVGMetadataElement|SVGMissingGlyphElement|SVGPathElement|SVGPatternElement|SVGPolygonElement|SVGPolylineElement|SVGRadialGradientElement|SVGRectElement|SVGSVGElement|SVGScriptElement|SVGSetElement|SVGStopElement|SVGStyleElement|SVGSwitchElement|SVGSymbolElement|SVGTRefElement|SVGTSpanElement|SVGTextContentElement|SVGTextElement|SVGTextPathElement|SVGTextPositioningElement|SVGTitleElement|SVGUseElement|SVGVKernElement|SVGViewElement;Element"
+  "%": ";Element"
 },
 
 ErrorEvent: {"": "Event;error=", "%": "ErrorEvent"},
 
-Event: {"": "Interceptor;", "%": "AudioProcessingEvent|AutocompleteErrorEvent|BeforeLoadEvent|CompositionEvent|CustomEvent|DeviceMotionEvent|DeviceOrientationEvent|DragEvent|FocusEvent|HashChangeEvent|IDBVersionChangeEvent|KeyboardEvent|MIDIConnectionEvent|MIDIMessageEvent|MSPointerEvent|MediaKeyEvent|MediaKeyMessageEvent|MediaKeyNeededEvent|MediaStreamEvent|MediaStreamTrackEvent|MessageEvent|MouseEvent|MouseScrollEvent|MouseWheelEvent|MutationEvent|OfflineAudioCompletionEvent|OverflowEvent|PageTransitionEvent|PointerEvent|PopStateEvent|ProgressEvent|RTCDTMFToneChangeEvent|RTCDataChannelEvent|RTCIceCandidateEvent|ResourceProgressEvent|SVGZoomEvent|SecurityPolicyViolationEvent|SpeechInputEvent|SpeechRecognitionEvent|SpeechSynthesisEvent|StorageEvent|TextEvent|TouchEvent|TrackEvent|TransitionEvent|UIEvent|WebGLContextEvent|WebKitAnimationEvent|WebKitTransitionEvent|WheelEvent|XMLHttpRequestProgressEvent;Event"},
-
-EventTarget: {"": "Interceptor;", "%": "MediaStream;EventTarget"},
-
-FileError: {"": "DomError;code=", "%": "FileError"},
-
-FormElement: {"": "HtmlElement;length=", "%": "HTMLFormElement"},
-
-Geolocation: {"": "Interceptor;",
-  getCurrentPosition$3$enableHighAccuracy$maximumAge$timeout: function(receiver, enableHighAccuracy, maximumAge, timeout) {
-    var options, completer, e, stacktrace, t1, completer0, exception;
-    options = H.fillLiteralMap([], P.LinkedHashMap_LinkedHashMap(null, null, null, null, null));
-    t1 = W.Geoposition;
-    completer0 = new P._AsyncCompleter(P._Future$(t1));
-    H.setRuntimeTypeInfo(completer0, [t1]);
-    completer = completer0;
-    try {
-      this._getCurrentPosition$3(receiver, new W.Geolocation_getCurrentPosition_closure(receiver, completer), new W.Geolocation_getCurrentPosition_closure0(completer), options);
-    } catch (exception) {
-      t1 = H.unwrapException(exception);
-      e = t1;
-      stacktrace = new H._StackTrace(exception, null);
-      t1 = completer.get$future();
-      if (t1._state !== 0)
-        H.throwExpression(new P.StateError("Future already completed"));
-      t1._asyncCompleteError$2(e, stacktrace);
-    }
-
-    return completer.get$future();
+Event: {"": "Interceptor;",
+  get$target: function(receiver) {
+    return W._convertNativeToDart_EventTarget(receiver.target);
   },
-  getCurrentPosition$0: function($receiver) {
-    return this.getCurrentPosition$3$enableHighAccuracy$maximumAge$timeout($receiver, null, null, null);
-  },
-  watchPosition$3$enableHighAccuracy$maximumAge$timeout: function(receiver, enableHighAccuracy, maximumAge, timeout) {
-    var t1, options;
-    t1 = {};
-    options = H.fillLiteralMap([], P.LinkedHashMap_LinkedHashMap(null, null, null, null, null));
-    t1.watchId_0 = null;
-    t1.controller_1 = null;
-    t1.controller_1 = P.StreamController_StreamController(new W.Geolocation_watchPosition_closure(t1, receiver), new W.Geolocation_watchPosition_closure0(t1, receiver, options), null, null, true, W.Geoposition);
-    t1 = t1.controller_1;
-    t1.toString;
-    t1 = new P._ControllerStream(t1);
-    H.setRuntimeTypeInfo(t1, [null]);
-    return t1;
-  },
-  watchPosition$0: function($receiver) {
-    return this.watchPosition$3$enableHighAccuracy$maximumAge$timeout($receiver, null, null, null);
-  },
-  _ensurePosition$1: function(receiver, domPosition) {
-    var t1, t2, exception;
-    try {
-      t1 = domPosition;
-      t2 = J.getInterceptor(t1);
-      if (typeof t1 === "object" && t1 !== null && !!t2.$isGeoposition)
-        return domPosition;
-    } catch (exception) {
-      H.unwrapException(exception);
-    }
-
-    return new W._GeopositionWrapper(domPosition);
-  },
-  _getCurrentPosition$3: function(receiver, successCallback, errorCallback, options) {
-    return receiver.getCurrentPosition(H.convertDartClosureToJS(successCallback, 1), H.convertDartClosureToJS(errorCallback, 1), options);
-  },
-  _watchPosition$3: function(receiver, successCallback, errorCallback, options) {
-    return receiver.watchPosition(H.convertDartClosureToJS(successCallback, 1), H.convertDartClosureToJS(errorCallback, 1), options);
-  },
-  "%": "Geolocation"
+  "%": "AudioProcessingEvent|AutocompleteErrorEvent|BeforeLoadEvent|BeforeUnloadEvent|CSSFontFaceLoadEvent|CloseEvent|CustomEvent|DeviceMotionEvent|DeviceOrientationEvent|HashChangeEvent|IDBVersionChangeEvent|MIDIConnectionEvent|MIDIMessageEvent|MediaKeyEvent|MediaKeyMessageEvent|MediaKeyNeededEvent|MediaStreamEvent|MediaStreamTrackEvent|MessageEvent|MutationEvent|OfflineAudioCompletionEvent|OverflowEvent|PageTransitionEvent|PopStateEvent|RTCDTMFToneChangeEvent|RTCDataChannelEvent|RTCIceCandidateEvent|SecurityPolicyViolationEvent|SpeechInputEvent|SpeechRecognitionEvent|SpeechSynthesisEvent|StorageEvent|TrackEvent|TransitionEvent|WebGLContextEvent|WebKitAnimationEvent|WebKitTransitionEvent;Event"
 },
 
-Geoposition: {"": "Interceptor;coords=", $isGeoposition: true, "%": "Geoposition"},
+EventTarget: {"": "Interceptor;",
+  addEventListener$3: function(receiver, type, listener, useCapture) {
+    return receiver.addEventListener(type, H.convertDartClosureToJS(listener, 1), useCapture);
+  },
+  removeEventListener$3: function(receiver, type, listener, useCapture) {
+    return receiver.removeEventListener(type, H.convertDartClosureToJS(listener, 1), useCapture);
+  },
+  $isEventTarget: true,
+  "%": "MediaStream;EventTarget"
+},
+
+FieldSetElement: {"": "HtmlElement;disabled}", "%": "HTMLFieldSetElement"},
+
+FormElement: {"": "HtmlElement;length=,target=", "%": "HTMLFormElement"},
+
+HttpRequest: {"": "XmlHttpRequestEventTarget;responseText=",
+  open$5$async$password$user: function(receiver, method, url, async, password, user) {
+    return receiver.open(method, url, async, user, password);
+  },
+  open$3$async: function($receiver, method, url, async) {
+    return $receiver.open(method, url, async);
+  },
+  send$1: function(receiver, data) {
+    return receiver.send(data);
+  },
+  "%": "XMLHttpRequest"
+},
+
+InputElement: {"": "HtmlElement;disabled}", $isInputElement: true, $isEventTarget: true, "%": "HTMLInputElement"},
+
+KeygenElement: {"": "HtmlElement;disabled}", "%": "HTMLKeygenElement"},
+
+LinkElement: {"": "HtmlElement;disabled}", "%": "HTMLLinkElement"},
 
 MediaElement: {"": "HtmlElement;error=", "%": "HTMLAudioElement|HTMLMediaElement|HTMLVideoElement"},
 
-MediaError: {"": "Interceptor;code=", "%": "MediaError"},
-
-MediaKeyError: {"": "Interceptor;code=", "%": "MediaKeyError"},
+MouseEvent: {"": "UIEvent;", "%": "DragEvent|MSPointerEvent|MouseEvent|MouseScrollEvent|MouseWheelEvent|PointerEvent|WheelEvent"},
 
 Node: {"": "EventTarget;",
   toString$0: function(receiver) {
     var t1 = receiver.nodeValue;
     return t1 == null ? J.Interceptor.prototype.toString$0.call(this, receiver) : t1;
   },
-  "%": "Document|HTMLDocument;Node"
+  "%": "Attr|Document|DocumentFragment|DocumentType|Entity|HTMLDocument|Notation|SVGDocument|ShadowRoot;Node"
 },
 
-ObjectElement: {"": "HtmlElement;code=", "%": "HTMLObjectElement"},
+OptGroupElement: {"": "HtmlElement;disabled}", "%": "HTMLOptGroupElement"},
 
-PositionError: {"": "Interceptor;code=", "%": "PositionError"},
+OptionElement: {"": "HtmlElement;disabled}", "%": "HTMLOptionElement"},
 
-SelectElement: {"": "HtmlElement;length=", "%": "HTMLSelectElement"},
+ProcessingInstruction: {"": "CharacterData;target=", "%": "ProcessingInstruction"},
+
+ProgressEvent: {"": "Event;", "%": "ProgressEvent|ResourceProgressEvent|XMLHttpRequestProgressEvent"},
+
+SelectElement: {"": "HtmlElement;disabled},length=", "%": "HTMLSelectElement"},
 
 SpeechRecognitionError: {"": "Event;error=", "%": "SpeechRecognitionError"},
 
+Storage: {"": "Interceptor;",
+  $index: function(receiver, key) {
+    return receiver.getItem(key);
+  },
+  $indexSet: function(receiver, key, value) {
+    receiver.setItem(key, value);
+  },
+  forEach$1: function(receiver, f) {
+    var i, key;
+    for (i = 0; true; ++i) {
+      key = receiver.key(i);
+      if (key == null)
+        return;
+      f.call$2(key, receiver.getItem(key));
+    }
+  },
+  get$keys: function(receiver) {
+    var keys = [];
+    this.forEach$1(receiver, new W.Storage_keys_closure(keys));
+    return keys;
+  },
+  get$values: function(receiver) {
+    var values = [];
+    this.forEach$1(receiver, new W.Storage_values_closure(values));
+    return values;
+  },
+  get$length: function(receiver) {
+    return receiver.length;
+  },
+  get$isEmpty: function(receiver) {
+    return receiver.key(0) == null;
+  },
+  $isMap: true,
+  $asMap: function() {
+    return [J.JSString, J.JSString];
+  },
+  "%": "Storage"
+},
+
+StyleElement: {"": "HtmlElement;disabled}", "%": "HTMLStyleElement"},
+
+TextAreaElement: {"": "HtmlElement;disabled}", "%": "HTMLTextAreaElement"},
+
+UIEvent: {"": "Event;", "%": "CompositionEvent|FocusEvent|KeyboardEvent|SVGZoomEvent|TextEvent|TouchEvent;UIEvent"},
+
 Window: {"": "EventTarget;",
   toString$0: function(receiver) {
     return receiver.toString();
   },
+  $isEventTarget: true,
   "%": "DOMWindow|Window"
-}}],
-["dart.dom.web_sql", "dart:web_sql", , P, {
-SqlError: {"": "Interceptor;code=", "%": "SQLError"}}],
-["dart.isolate", "dart:isolate", , P, {
-_Isolate_port: function() {
-  if ($.lazyPort == null)
-    $.lazyPort = H.ReceivePortImpl$();
-  return $.lazyPort;
 },
 
+XmlHttpRequestEventTarget: {"": "EventTarget;", "%": ";XMLHttpRequestEventTarget"}}],
+["dart.dom.svg", "dart:svg", , P, {
+AElement: {"": "GraphicsElement;target=", "%": "SVGAElement"},
+
+GraphicsElement: {"": "SvgElement;", "%": "SVGAltGlyphElement|SVGCircleElement|SVGClipPathElement|SVGDefsElement|SVGEllipseElement|SVGForeignObjectElement|SVGGElement|SVGImageElement|SVGLineElement|SVGPathElement|SVGPolygonElement|SVGPolylineElement|SVGRectElement|SVGSVGElement|SVGSwitchElement|SVGTSpanElement|SVGTextContentElement|SVGTextElement|SVGTextPathElement|SVGTextPositioningElement|SVGUseElement;SVGGraphicsElement"},
+
+StyleElement0: {"": "SvgElement;disabled}", "%": "SVGStyleElement"},
+
+SvgElement: {"": "Element;", "%": "SVGAltGlyphDefElement|SVGAltGlyphItemElement|SVGAnimateColorElement|SVGAnimateElement|SVGAnimateMotionElement|SVGAnimateTransformElement|SVGAnimationElement|SVGComponentTransferFunctionElement|SVGCursorElement|SVGDescElement|SVGFEBlendElement|SVGFEColorMatrixElement|SVGFEComponentTransferElement|SVGFECompositeElement|SVGFEConvolveMatrixElement|SVGFEDiffuseLightingElement|SVGFEDisplacementMapElement|SVGFEDistantLightElement|SVGFEDropShadowElement|SVGFEFloodElement|SVGFEFuncAElement|SVGFEFuncBElement|SVGFEFuncGElement|SVGFEFuncRElement|SVGFEGaussianBlurElement|SVGFEImageElement|SVGFEMergeElement|SVGFEMergeNodeElement|SVGFEMorphologyElement|SVGFEOffsetElement|SVGFEPointLightElement|SVGFESpecularLightingElement|SVGFESpotLightElement|SVGFETileElement|SVGFETurbulenceElement|SVGFilterElement|SVGFontElement|SVGFontFaceElement|SVGFontFaceFormatElement|SVGFontFaceNameElement|SVGFontFaceSrcElement|SVGFontFaceUriElement|SVGGlyphElement|SVGGlyphRefElement|SVGGradientElement|SVGHKernElement|SVGLinearGradientElement|SVGMPathElement|SVGMarkerElement|SVGMaskElement|SVGMetadataElement|SVGMissingGlyphElement|SVGPatternElement|SVGRadialGradientElement|SVGScriptElement|SVGSetElement|SVGStopElement|SVGSymbolElement|SVGTitleElement|SVGVKernElement|SVGViewElement;SVGElement"}}],
+["dart.isolate", "dart:isolate", , P, {
 ReceivePort: {"": "Object;"}}],
+["dart.math", "dart:math", , P, {
+_Random: {"": "Object;",
+  nextInt$1: function(max) {
+    if (typeof max !== "number")
+      throw max.$lt();
+    if (max < 0)
+      throw H.wrapException(new P.ArgumentError("negative max: " + max));
+    if (max > 4294967295)
+      max = 4294967295;
+    return Math.random() * max >>> 0;
+  }
+}}],
 ["dart.typed_data", "dart:typed_data", , P, {
 TypedData_ListMixin: {"": "TypedData+ListMixin;", $isList: true, $asList: null, $isEfficientLength: true},
 
 TypedData_ListMixin_FixedLengthListMixin: {"": "TypedData_ListMixin+FixedLengthListMixin;", $asList: null},
 
 TypedData: {"": "Interceptor;",
   _invalidIndex$2: function(receiver, index, $length) {
     var t1 = J.getInterceptor$n(index);
     if (t1.$lt(index, 0) || t1.$ge(index, $length))
       throw H.wrapException(P.RangeError$range(index, 0, $length));
     else
       throw H.wrapException(P.ArgumentError$("Invalid list index " + H.S(index)));
   },
   "%": ";ArrayBufferView;TypedData_ListMixin|TypedData_ListMixin_FixedLengthListMixin"
 },
 
 Uint8List: {"": "TypedData_ListMixin_FixedLengthListMixin;",
   get$length: function(receiver) {
     return C.JS_CONST_ZYJ(receiver);
   },
   $index: function(receiver, index) {
-    var t1;
-    if (typeof index !== "number")
-      return this.$$index$bailout(1, receiver, index);
-    t1 = C.JS_CONST_ZYJ(receiver);
-    if (index >>> 0 != index || index >= t1)
-      this._invalidIndex$2(receiver, index, t1);
-    return receiver[index];
-  },
-  $$index$bailout: function(state0, receiver, index) {
     var t1 = C.JS_CONST_ZYJ(receiver);
     if (index >>> 0 != index || J.$ge$n(index, t1))
       this._invalidIndex$2(receiver, index, t1);
     return receiver[index];
   },
   $indexSet: function(receiver, index, value) {
-    var t1;
-    if (typeof index !== "number")
-      return this.$$indexSet$bailout(1, receiver, index, value);
-    t1 = C.JS_CONST_ZYJ(receiver);
-    if (index >>> 0 != index || index >= t1)
-      this._invalidIndex$2(receiver, index, t1);
-    receiver[index] = value;
-  },
-  $$indexSet$bailout: function(state0, receiver, index, value) {
     var t1 = C.JS_CONST_ZYJ(receiver);
     if (index >>> 0 != index || J.$ge$n(index, t1))
       this._invalidIndex$2(receiver, index, t1);
     receiver[index] = value;
   },
   $asList: function() {
     return [J.JSInt];
   },
   $isList: true,
   $isEfficientLength: true,
   $isJavaScriptIndexingBehavior: true,
   "%": ";Uint8Array"
 }}],
-["trip_meter.dart", "trip_meter.dart", , E, {
-calculateDistance: function(lat1, lon1, lat2, lon2) {
-  var t1, t2, t3, t4, a;
-  if (typeof lat2 !== "number")
-    throw lat2.$sub();
-  if (typeof lat1 !== "number")
-    throw H.iae(lat1);
-  if (typeof lon2 !== "number")
-    throw lon2.$sub();
-  if (typeof lon1 !== "number")
-    throw H.iae(lon1);
-  t1 = Math.sin((lat2 - lat1) / 2);
-  t1 = Math.pow(t1, 2);
-  t2 = Math.cos(lat1);
-  t3 = Math.cos(lat2);
-  t4 = Math.sin((lon2 - lon1) / 2);
-  a = t1 + t2 * t3 * Math.pow(t4, 2);
-  t1 = Math.sqrt(a);
-  t2 = Math.sqrt(1 - a);
-  return 6371 * (2 * Math.atan2(t1, t2));
+["", "piratebadge.dart", , A, {
+main: function() {
+  var inputField, t1, t2;
+  inputField = document.querySelector("#inputName");
+  inputField.toString;
+  t1 = new W._ElementEventStreamImpl(inputField, C.EventStreamProvider_input._eventType, false);
+  H.setRuntimeTypeInfo(t1, [null]);
+  t2 = new W._EventStreamSubscription(0, t1._target, t1._eventType, W._wrapZone(A.updateBadge$closure), t1._useCapture);
+  H.setRuntimeTypeInfo(t2, [H.getRuntimeTypeArgument(t1, "_EventStream", 0)]);
+  t2._tryResume$0();
+  $.genButton = document.querySelector("#generateButton");
+  t2 = $.genButton;
+  t2.toString;
+  t2 = new W._ElementEventStreamImpl(t2, C.EventStreamProvider_click._eventType, false);
+  H.setRuntimeTypeInfo(t2, [null]);
+  t1 = new W._EventStreamSubscription(0, t2._target, t2._eventType, W._wrapZone(A.generateBadge$closure), t2._useCapture);
+  H.setRuntimeTypeInfo(t1, [H.getRuntimeTypeArgument(t2, "_EventStream", 0)]);
+  t1._tryResume$0();
+  $.badgeNameElement = document.querySelector("#badgeName");
+  A.PirateName_readyThePirates().then$1(new A.main_closure(inputField)).catchError$1(new A.main_closure0());
 },
 
-main: function() {
-  var t1 = {};
-  t1.startPosition_0 = null;
-  J.getCurrentPosition$0$x(window.navigator.geolocation).then$2$onError(new E.main_closure(t1), new E.main_closure0());
-  J.watchPosition$0$x(window.navigator.geolocation).listen$2$onError(new E.main_closure1(t1), new E.main_closure2());
-},
-
-main_closure: {"": "Closure;box_0",
-  call$1: function(position) {
-    var t1 = this.box_0;
-    t1.startPosition_0 = position;
-    document.querySelector("#start-lat").textContent = H.S(J.get$latitude$x(J.get$coords$x(t1.startPosition_0)));
-    document.querySelector("#start-lon").textContent = H.S(J.get$longitude$x(J.get$coords$x(t1.startPosition_0)));
+updateBadge: function(e) {
+  var inputName, t1, t2;
+  inputName = H.interceptedTypeCast(J.get$target$x(e), "$isInputElement").value;
+  A.setBadgeName(A.PirateName$(null, inputName));
+  t1 = J.trim$0$s(inputName);
+  t2 = $.genButton;
+  if (t1.length === 0) {
+    J.set$disabled$x(t2, false);
+    t2.textContent = "Aye! Gimme a name!";
+  } else {
+    J.set$disabled$x(t2, true);
+    t2.textContent = "Arrr! Write yer name!";
   }
 },
 
-main_closure0: {"": "Closure;",
-  call$1: function(error) {
-    window.alert("Error occurred. Error code: " + H.S(J.get$code$x(error)));
-    return;
-  }
+generateBadge: function(e) {
+  A.setBadgeName(A.PirateName$(null, null));
 },
 
-main_closure1: {"": "Closure;box_0",
-  call$1: function(position) {
-    var t1, t2, distance;
-    t1 = J.getInterceptor$x(position);
-    document.querySelector("#current-lat").textContent = H.S(J.get$latitude$x(t1.get$coords(position)));
-    document.querySelector("#current-lon").textContent = H.S(J.get$longitude$x(t1.get$coords(position)));
-    t2 = this.box_0;
-    distance = E.calculateDistance(J.get$latitude$x(J.get$coords$x(t2.startPosition_0)), J.get$longitude$x(J.get$coords$x(t2.startPosition_0)), J.get$latitude$x(t1.get$coords(position)), J.get$longitude$x(t1.get$coords(position)));
-    document.querySelector("#distance").textContent = H.S(distance);
-  }
+setBadgeName: function(newName) {
+  var t1;
+  if (newName == null)
+    return;
+  t1 = $.badgeNameElement;
+  t1.textContent = J.get$isEmpty$asx(newName._firstName) === true ? "" : H.S(newName._firstName) + " the " + H.S(newName._appellation);
+  window.localStorage.setItem("pirateName", "{ \"f\": \"" + H.S(newName._firstName) + "\", \"a\": \"" + H.S(newName._appellation) + "\" } ");
 },
 
-main_closure2: {"": "Closure;",
-  call$1: function(error) {
-    window.alert("Error occurred. Error code: " + H.S(J.get$code$x(error)));
+getBadgeNameFromStorage: function() {
+  var storedName = window.localStorage.getItem("pirateName");
+  if (storedName != null)
+    return A.PirateName$fromJSON(storedName);
+  else
     return;
-  }
+},
+
+main_closure: {"": "Closure;inputField_0",
+  call$1: function(_) {
+    J.set$disabled$x(this.inputField_0, false);
+    J.set$disabled$x($.genButton, false);
+    A.setBadgeName(A.getBadgeNameFromStorage());
+  },
+  $is_args1: true
+},
+
+main_closure0: {"": "Closure;",
+  call$1: function(arrr) {
+    P.print("Error initializing pirate names: " + H.S(arrr));
+    $.badgeNameElement.textContent = "Arrr! No names.";
+  },
+  $is_args1: true
+},
+
+PirateName: {"": "Object;_firstName,_appellation",
+  toString$0: function(_) {
+    return J.get$isEmpty$asx(this._firstName) === true ? "" : H.S(this._firstName) + " the " + H.S(this._appellation);
+  },
+  PirateName$2$appellation$firstName: function(appellation, firstName) {
+    if (firstName == null)
+      this._firstName = J.$index$asx($.get$PirateName_names(), $.get$PirateName_indexGen().nextInt$1(J.get$length$asx($.get$PirateName_names())));
+    else
+      this._firstName = firstName;
+    this._appellation = J.$index$asx($.get$PirateName_appellations(), $.get$PirateName_indexGen().nextInt$1(J.get$length$asx($.get$PirateName_appellations())));
+  },
+  PirateName$fromJSON$1: function(jsonString) {
+    var storedName, t1;
+    storedName = C.C_JsonCodec.decode$1(jsonString);
+    t1 = J.getInterceptor$asx(storedName);
+    this._firstName = t1.$index(storedName, "f");
+    this._appellation = t1.$index(storedName, "a");
+  },
+  static: {
+"": "PirateName_indexGen,PirateName_names,PirateName_appellations",
+PirateName$: function(appellation, firstName) {
+  var t1 = new A.PirateName(null, null);
+  t1.PirateName$2$appellation$firstName(appellation, firstName);
+  return t1;
+},
+
+PirateName$fromJSON: function(jsonString) {
+  var t1 = new A.PirateName(null, null);
+  t1.PirateName$fromJSON$1(jsonString);
+  return t1;
+},
+
+PirateName_readyThePirates: function() {
+  return W.HttpRequest_getString("piratenames.json", null, null).then$1(A.PirateName__parsePirateNamesFromJSON$closure);
+},
+
+PirateName__parsePirateNamesFromJSON: function(jsonString) {
+  var pirateNames, t1;
+  pirateNames = C.C_JsonCodec.decode$1(jsonString);
+  t1 = J.getInterceptor$asx(pirateNames);
+  $.PirateName_names = t1.$index(pirateNames, "names");
+  $.PirateName_appellations = t1.$index(pirateNames, "appellations");
+}}
+
 }},
 1],
 ]);
 Isolate.$finishClasses($$, $, null);
 $$ = null;
 
 // Static function getters
 init.globalFunctions.IsolateNatives__processWorkerMessage$closure = H.IsolateNatives__processWorkerMessage$closure = new H.Closure$2(H.IsolateNatives__processWorkerMessage, "IsolateNatives__processWorkerMessage$closure");
 init.globalFunctions.toStringWrapper$closure = H.toStringWrapper$closure = new H.Closure$0(H.toStringWrapper, "toStringWrapper$closure");
 init.globalFunctions.invokeClosure$closure = H.invokeClosure$closure = new H.Closure$7(H.invokeClosure, "invokeClosure$closure");
 init.globalFunctions.typeNameInChrome$closure = H.typeNameInChrome$closure = new H.Closure$1(H.typeNameInChrome, "typeNameInChrome$closure");
 init.globalFunctions.typeNameInSafari$closure = H.typeNameInSafari$closure = new H.Closure$1(H.typeNameInSafari, "typeNameInSafari$closure");
 init.globalFunctions.typeNameInOpera$closure = H.typeNameInOpera$closure = new H.Closure$1(H.typeNameInOpera, "typeNameInOpera$closure");
 init.globalFunctions.typeNameInFirefox$closure = H.typeNameInFirefox$closure = new H.Closure$1(H.typeNameInFirefox, "typeNameInFirefox$closure");
 init.globalFunctions.typeNameInIE$closure = H.typeNameInIE$closure = new H.Closure$1(H.typeNameInIE, "typeNameInIE$closure");
 init.globalFunctions.constructorNameFallback$closure = H.constructorNameFallback$closure = new H.Closure$1(H.constructorNameFallback, "constructorNameFallback$closure");
 init.globalFunctions.callDartFunctionWith1Arg$closure = H.callDartFunctionWith1Arg$closure = new H.Closure$2(H.callDartFunctionWith1Arg, "callDartFunctionWith1Arg$closure");
 init.globalFunctions._asyncRunCallback$closure = P._asyncRunCallback$closure = new H.Closure$0(P._asyncRunCallback, "_asyncRunCallback$closure");
 init.globalFunctions._nullDataHandler$closure = P._nullDataHandler$closure = new H.Closure$1(P._nullDataHandler, "_nullDataHandler$closure");
 init.globalFunctions._nullErrorHandler$closure = P._nullErrorHandler$closure = new P.Closure$21(P._nullErrorHandler, "_nullErrorHandler$closure");
 init.globalFunctions._nullDoneHandler$closure = P._nullDoneHandler$closure = new H.Closure$0(P._nullDoneHandler, "_nullDoneHandler$closure");
 init.globalFunctions._defaultEquals$closure = P._defaultEquals$closure = new H.Closure$2(P._defaultEquals, "_defaultEquals$closure");
 init.globalFunctions._defaultHashCode$closure = P._defaultHashCode$closure = new H.Closure$1(P._defaultHashCode, "_defaultHashCode$closure");
 init.globalFunctions.identical$closure = P.identical$closure = new H.Closure$2(P.identical, "identical$closure");
 init.globalFunctions.identityHashCode$closure = P.identityHashCode$closure = new H.Closure$1(P.identityHashCode, "identityHashCode$closure");
-init.globalFunctions.main$closure = E.main$closure = new H.Closure$0(E.main, "main$closure");
+init.globalFunctions.main$closure = A.main$closure = new H.Closure$0(A.main, "main$closure");
+init.globalFunctions.updateBadge$closure = A.updateBadge$closure = new H.Closure$1(A.updateBadge, "updateBadge$closure");
+init.globalFunctions.generateBadge$closure = A.generateBadge$closure = new H.Closure$1(A.generateBadge, "generateBadge$closure");
+init.globalFunctions.PirateName__parsePirateNamesFromJSON$closure = A.PirateName__parsePirateNamesFromJSON$closure = new H.Closure$1(A.PirateName__parsePirateNamesFromJSON, "PirateName__parsePirateNamesFromJSON$closure");
 // Runtime type support
+J.JSString.$isString = true;
+J.JSString.$isObject = true;
 J.JSInt.$isint = true;
 J.JSInt.$isObject = true;
-J.JSString.$isString = true;
-J.JSString.$isObject = true;
 J.JSNumber.$isObject = true;
+P.Object.$isObject = true;
 P.Duration.$isObject = true;
-W.Geoposition.$isGeoposition = true;
-W.Geoposition.$isObject = true;
+W.Event.$isEvent = true;
+W.Event.$isObject = true;
+W.MouseEvent.$isEvent = true;
+W.MouseEvent.$isObject = true;
+J.JSBool.$isbool = true;
+J.JSBool.$isObject = true;
+W.HttpRequest.$isObject = true;
+W.ProgressEvent.$isEvent = true;
+W.ProgressEvent.$isObject = true;
 P.ReceivePort.$isObject = true;
 H._IsolateEvent.$isObject = true;
 H._IsolateContext.$isObject = true;
 J.JSArray.$isObject = true;
 P.Symbol.$isSymbol = true;
 P.Symbol.$isObject = true;
 P.StackTrace.$isStackTrace = true;
 P.StackTrace.$isObject = true;
+P.Function.$isFunction = true;
+P.Function.$isObject = true;
+P._EventSink.$is_EventSink = true;
+P._EventSink.$isObject = true;
 P.Future.$isFuture = true;
 P.Future.$isObject = true;
-P.Object.$isObject = true;
-P.Function.$isFunction = true;
-P.Function.$isObject = true;
-J.JSBool.$isbool = true;
-J.JSBool.$isObject = true;
 P.StreamSubscription.$isStreamSubscription = true;
 P.StreamSubscription.$isObject = true;
-P._EventSink.$is_EventSink = true;
-P._EventSink.$isObject = true;
 // getInterceptor methods
 J.getInterceptor = function(receiver) {
   if (typeof receiver == "number") {
     if (Math.floor(receiver) == receiver)
       return J.JSInt.prototype;
     return J.JSDouble.prototype;
   }
   if (typeof receiver == "string")
     return J.JSString.prototype;
   if (receiver == null)
@@ skipping 52 matching lines @@
 };
 J.getInterceptor$x = function(receiver) {
   if (receiver == null)
     return receiver;
   if (typeof receiver != "object")
     return receiver;
   if (receiver instanceof P.Object)
     return receiver;
   return J.getNativeInterceptor(receiver);
 };
-C.C_CloseToken = new H.CloseToken();
+C.C_JsonCodec = new P.JsonCodec();
 C.C_UnknownJavaScriptObject = new J.UnknownJavaScriptObject();
+C.C__DelayedDone = new P._DelayedDone();
+C.C__Random = new P._Random();
 C.C__RootZone = new P._RootZone();
 C.Duration_0 = new P.Duration(0);
-C.Geolocation_methods = W.Geolocation.prototype;
+C.EventStreamProvider_click = new W.EventStreamProvider("click");
+C.EventStreamProvider_error = new W.EventStreamProvider("error");
+C.EventStreamProvider_input = new W.EventStreamProvider("input");
+C.EventStreamProvider_load = new W.EventStreamProvider("load");
+C.HttpRequest_methods = W.HttpRequest.prototype;
 C.JSArray_methods = J.JSArray.prototype;
 C.JSInt_methods = J.JSInt.prototype;
 C.JSNumber_methods = J.JSNumber.prototype;
 C.JSString_methods = J.JSString.prototype;
 C.JS_CONST_ZYJ =     ((typeof version == "function" && typeof os == "object" && "system" in os)
     || (typeof navigator == "object"
         && navigator.userAgent.indexOf('Chrome') != -1))
         ? function(x) { return x.$dartCachedLength || x.length; }
         : function(x) { return x.length; };
 ;
+C.JsonDecoder_null = new P.JsonDecoder(null);
 Isolate.makeConstantList = function(list) {
   list.immutable$list = true;
   list.fixed$length = true;
   return list;
 };
 C.List_empty = Isolate.makeConstantList([]);
 $.lazyPort = null;
 $.ReceivePortImpl__nextFreeId = 1;
 $.Primitives_mirrorFunctionCacheName = "$cachedFunction";
 $.Primitives_mirrorInvokeCacheName = "$cachedInvocation";
+$.initNativeDispatchFlag = null;
 $.printToZone = null;
 $._callbacksAreEnqueued = false;
 $.Zone__current = C.C__RootZone;
 $.Expando__keyCount = 0;
 $.Device__isOpera = null;
 $.Device__isWebKit = null;
+$.genButton = null;
+$.badgeNameElement = null;
 J.$eq = function(receiver, a0) {
   if (receiver == null)
     return a0 == null;
   if (typeof receiver != "object")
     return a0 != null && receiver === a0;
   return J.getInterceptor(receiver).$eq(receiver, a0);
 };
 J.$ge$n = function(receiver, a0) {
   if (typeof receiver == "number" && typeof a0 == "number")
     return receiver >= a0;
   return J.getInterceptor$n(receiver).$ge(receiver, a0);
 };
 J.$index$asx = function(receiver, a0) {
   if (receiver.constructor == Array || typeof receiver == "string" || H.isJsIndexable(receiver, receiver[init.dispatchPropertyName]))
     if (a0 >>> 0 === a0 && a0 < receiver.length)
       return receiver[a0];
   return J.getInterceptor$asx(receiver).$index(receiver, a0);
 };
 J.$indexSet$ax = function(receiver, a0, a1) {
   if ((receiver.constructor == Array || H.isJsIndexable(receiver, receiver[init.dispatchPropertyName])) && !receiver.immutable$list && a0 >>> 0 === a0 && a0 < receiver.length)
     return receiver[a0] = a1;
   return J.getInterceptor$ax(receiver).$indexSet(receiver, a0, a1);
 };
-J.add$1$ax = function(receiver, a0) {
-  return J.getInterceptor$ax(receiver).add$1(receiver, a0);
+J.addEventListener$3$x = function(receiver, a0, a1, a2) {
+  return J.getInterceptor$x(receiver).addEventListener$3(receiver, a0, a1, a2);
 };
 J.forEach$1$ax = function(receiver, a0) {
   return J.getInterceptor$ax(receiver).forEach$1(receiver, a0);
 };
-J.get$code$x = function(receiver) {
-  return J.getInterceptor$x(receiver).get$code(receiver);
-};
-J.get$coords$x = function(receiver) {
-  return J.getInterceptor$x(receiver).get$coords(receiver);
+J.get$_key$x = function(receiver) {
+  return J.getInterceptor$x(receiver).get$_key(receiver);
 };
 J.get$error$x = function(receiver) {
   return J.getInterceptor$x(receiver).get$error(receiver);
 };
 J.get$hashCode$ = function(receiver) {
   return J.getInterceptor(receiver).get$hashCode(receiver);
 };
+J.get$isEmpty$asx = function(receiver) {
+  return J.getInterceptor$asx(receiver).get$isEmpty(receiver);
+};
 J.get$iterator$ax = function(receiver) {
   return J.getInterceptor$ax(receiver).get$iterator(receiver);
 };
-J.get$latitude$x = function(receiver) {
-  return J.getInterceptor$x(receiver).get$latitude(receiver);
-};
 J.get$length$asx = function(receiver) {
   return J.getInterceptor$asx(receiver).get$length(receiver);
 };
-J.get$longitude$x = function(receiver) {
-  return J.getInterceptor$x(receiver).get$longitude(receiver);
+J.get$responseText$x = function(receiver) {
+  return J.getInterceptor$x(receiver).get$responseText(receiver);
 };
-J.getCurrentPosition$0$x = function(receiver) {
-  return J.getInterceptor$x(receiver).getCurrentPosition$0(receiver);
+J.get$target$x = function(receiver) {
+  return J.getInterceptor$x(receiver).get$target(receiver);
 };
-J.removeLast$0$ax = function(receiver) {
-  return J.getInterceptor$ax(receiver).removeLast$0(receiver);
+J.get$values$x = function(receiver) {
+  return J.getInterceptor$x(receiver).get$values(receiver);
+};
+J.removeEventListener$3$x = function(receiver, a0, a1, a2) {
+  return J.getInterceptor$x(receiver).removeEventListener$3(receiver, a0, a1, a2);
+};
+J.send$1$x = function(receiver, a0) {
+  return J.getInterceptor$x(receiver).send$1(receiver, a0);
+};
+J.set$disabled$x = function(receiver, value) {
+  return J.getInterceptor$x(receiver).set$disabled(receiver, value);
+};
+J.toList$0$ax = function(receiver) {
+  return J.getInterceptor$ax(receiver).toList$0(receiver);
 };
 J.toString$0 = function(receiver) {
   return J.getInterceptor(receiver).toString$0(receiver);
 };
-J.watchPosition$0$x = function(receiver) {
-  return J.getInterceptor$x(receiver).watchPosition$0(receiver);
+J.trim$0$s = function(receiver) {
+  return J.getInterceptor$s(receiver).trim$0(receiver);
 };
 Isolate.$lazy($, "globalThis", "globalThis", "get$globalThis", function() {
   return function() { return this; }();
 });
 Isolate.$lazy($, "globalWindow", "globalWindow", "get$globalWindow", function() {
   return $.get$globalThis().window;
 });
 Isolate.$lazy($, "globalWorker", "globalWorker", "get$globalWorker", function() {
   return $.get$globalThis().Worker;
 });
@@ skipping 47 matching lines @@
 });
 Isolate.$lazy($, "_asyncCallbacks", "_asyncCallbacks", "get$_asyncCallbacks", function() {
   return P.ListQueue$(null, {func: "void_", void: true});
 });
 Isolate.$lazy($, "_toStringVisiting", "_toStringVisiting", "get$_toStringVisiting", function() {
   return P.HashSet_HashSet$identity(null);
 });
 Isolate.$lazy($, "_toStringList", "Maps__toStringList", "get$Maps__toStringList", function() {
   return P.List_List(null, null);
 });
+Isolate.$lazy($, "indexGen", "PirateName_indexGen", "get$PirateName_indexGen", function() {
+  return C.C__Random;
+});
+Isolate.$lazy($, "names", "PirateName_names", "get$PirateName_names", function() {
+  return [];
+});
+Isolate.$lazy($, "appellations", "PirateName_appellations", "get$PirateName_appellations", function() {
+  return [];
+});
 // Native classes
-J.Interceptor["%"] = "Navigator|NavigatorUserMediaError|SVGAnimatedNumberList";
+J.Interceptor["%"] = "DOMError|FileError|MediaError|MediaKeyError|Navigator|NavigatorUserMediaError|PositionError|SQLError|SVGAnimatedNumberList|SVGAnimatedString";
 
 
 init.functionAliases = {};
 ;
 init.metadata = [];
 $ = null;
 Isolate = Isolate.$finishIsolateConstructor(Isolate);
 $ = new Isolate();
 function convertToFastObject(properties) {
   function MyClass() {};
@@ skipping 54 matching lines @@
     }
     callback(event.target);
   }
   for (var i = 0; i < scripts.length; ++i) {
     scripts[i].addEventListener("load", onLoad, false);
   }
 })(function(currentScript) {
   init.currentScript = currentScript;
 
   if (typeof dartMainRunner === "function") {
-    dartMainRunner(function() { H.startRootIsolate(E.main$closure); });
+    dartMainRunner(function() { H.startRootIsolate(A.main$closure); });
   } else {
-    H.startRootIsolate(E.main$closure);
+    H.startRootIsolate(A.main$closure);
   }
 });
 // END invoke [main].
 function init() {
   Isolate.$isolateProperties = {};
   function generateAccessor(field, accessors, cls) {
     var len = field.length;
     var code = field.charCodeAt(len - 1);
     var reflectable = false;
     if (code == 45) {
@@ skipping 232 matching lines @@
     Isolate.prototype = oldIsolate.prototype;
     Isolate.prototype.constructor = Isolate;
     Isolate.$isolateProperties = isolateProperties;
     Isolate.$finishClasses = oldIsolate.$finishClasses;
     Isolate.makeConstantList = oldIsolate.makeConstantList;
     return Isolate;
   };
 }
 })()
 
-//# sourceMappingURL=trip_meter.dart.js.map
-//@ sourceMappingURL=trip_meter.dart.js.map
+//# sourceMappingURL=piratebadge.dart.js.map
+//@ sourceMappingURL=piratebadge.dart.js.map