main.cjs

// Generated by dart2js (NullSafetyMode.sound, csp, intern-composite-values), the Dart to JavaScript compiler version: 3.2.0-140.0.dev.
// The code supports the following hooks:
// dartPrint(message):
//    if this function is defined it is called instead of the Dart [print]
//    method.
//
// dartMainRunner(main, args):
//    if this function is defined, the Dart [main] method will not be invoked
//    directly. Instead, a closure that will invoke [main], and its arguments
//    [args] is passed to [dartMainRunner].
//
// dartDeferredLibraryLoader(uri, successCallback, errorCallback, loadId, loadPriority):
//    if this function is defined, it will be called when a deferred library
//    is loaded. It should load and eval the javascript of `uri`, and call
//    successCallback. If it fails to do so, it should call errorCallback with
//    an error. The loadId argument is the deferred import that resulted in
//    this uri being loaded. The loadPriority argument is the priority the
//    library should be loaded with as specified in the code via the
//    load-priority annotation (0: normal, 1: high).
//
// dartCallInstrumentation(id, qualifiedName):
//    if this function is defined, it will be called at each entry of a
//    method or constructor. Used only when compiling programs with
//    --experiment-call-instrumentation.
(function dartProgram() {
  function copyProperties(from, to) {
    var keys = Object.keys(from);
    for (var i = 0; i < keys.length; i++) {
      var key = keys[i];
      to[key] = from[key];
    }
  }
  function mixinPropertiesHard(from, to) {
    var keys = Object.keys(from);
    for (var i = 0; i < keys.length; i++) {
      var key = keys[i];
      if (!to.hasOwnProperty(key))
        to[key] = from[key];
    }
  }
  function mixinPropertiesEasy(from, to) {
    Object.assign(to, from);
  }
  var supportsDirectProtoAccess = function() {
    var cls = function() {
    };
    cls.prototype = {p: {}};
    var object = new cls();
    if (!(Object.getPrototypeOf(object) && Object.getPrototypeOf(object).p === cls.prototype.p))
      return false;
    try {
      if (typeof navigator != "undefined" && typeof navigator.userAgent == "string" && navigator.userAgent.indexOf("Chrome/") >= 0)
        return true;
      if (typeof version == "function" && version.length == 0) {
        var v = version();
        if (/^\d+\.\d+\.\d+\.\d+$/.test(v))
          return true;
      }
    } catch (_) {
    }
    return false;
  }();
  function inherit(cls, sup) {
    cls.prototype.constructor = cls;
    cls.prototype["$is" + cls.name] = cls;
    if (sup != null) {
      if (supportsDirectProtoAccess) {
        Object.setPrototypeOf(cls.prototype, sup.prototype);
        return;
      }
      var clsPrototype = Object.create(sup.prototype);
      copyProperties(cls.prototype, clsPrototype);
      cls.prototype = clsPrototype;
    }
  }
  function inheritMany(sup, classes) {
    for (var i = 0; i < classes.length; i++)
      inherit(classes[i], sup);
  }
  function mixinEasy(cls, mixin) {
    mixinPropertiesEasy(mixin.prototype, cls.prototype);
    cls.prototype.constructor = cls;
  }
  function mixinHard(cls, mixin) {
    mixinPropertiesHard(mixin.prototype, cls.prototype);
    cls.prototype.constructor = cls;
  }
  function lazyOld(holder, name, getterName, initializer) {
    var uninitializedSentinel = holder;
    holder[name] = uninitializedSentinel;
    holder[getterName] = function() {
      holder[getterName] = function() {
        A.throwCyclicInit(name);
      };
      var result;
      var sentinelInProgress = initializer;
      try {
        if (holder[name] === uninitializedSentinel) {
          result = holder[name] = sentinelInProgress;
          result = holder[name] = initializer();
        } else
          result = holder[name];
      } finally {
        if (result === sentinelInProgress)
          holder[name] = null;
        holder[getterName] = function() {
          return this[name];
        };
      }
      return result;
    };
  }
  function lazy(holder, name, getterName, initializer) {
    var uninitializedSentinel = holder;
    holder[name] = uninitializedSentinel;
    holder[getterName] = function() {
      if (holder[name] === uninitializedSentinel)
        holder[name] = initializer();
      holder[getterName] = function() {
        return this[name];
      };
      return holder[name];
    };
  }
  function lazyFinal(holder, name, getterName, initializer) {
    var uninitializedSentinel = holder;
    holder[name] = uninitializedSentinel;
    holder[getterName] = function() {
      if (holder[name] === uninitializedSentinel) {
        var value = initializer();
        if (holder[name] !== uninitializedSentinel)
          A.throwLateFieldADI(name);
        holder[name] = value;
      }
      var finalValue = holder[name];
      holder[getterName] = function() {
        return finalValue;
      };
      return finalValue;
    };
  }
  function makeConstList(list) {
    list.immutable$list = Array;
    list.fixed$length = Array;
    return list;
  }
  function convertToFastObject(properties) {
    function t() {
    }
    t.prototype = properties;
    new t();
    return properties;
  }
  function convertAllToFastObject(arrayOfObjects) {
    for (var i = 0; i < arrayOfObjects.length; ++i)
      convertToFastObject(arrayOfObjects[i]);
  }
  var functionCounter = 0;
  function instanceTearOffGetter(isIntercepted, parameters) {
    var cache = null;
    return isIntercepted ? function(receiver) {
      if (cache === null)
        cache = A.closureFromTearOff(parameters);
      return new cache(receiver, this);
    } : function() {
      if (cache === null)
        cache = A.closureFromTearOff(parameters);
      return new cache(this, null);
    };
  }
  function staticTearOffGetter(parameters) {
    var cache = null;
    return function() {
      if (cache === null)
        cache = A.closureFromTearOff(parameters).prototype;
      return cache;
    };
  }
  var typesOffset = 0;
  function tearOffParameters(container, isStatic, isIntercepted, requiredParameterCount, optionalParameterDefaultValues, callNames, funsOrNames, funType, applyIndex, needsDirectAccess) {
    if (typeof funType == "number")
      funType += typesOffset;
    return {co: container, iS: isStatic, iI: isIntercepted, rC: requiredParameterCount, dV: optionalParameterDefaultValues, cs: callNames, fs: funsOrNames, fT: funType, aI: applyIndex || 0, nDA: needsDirectAccess};
  }
  function installStaticTearOff(holder, getterName, requiredParameterCount, optionalParameterDefaultValues, callNames, funsOrNames, funType, applyIndex) {
    var parameters = tearOffParameters(holder, true, false, requiredParameterCount, optionalParameterDefaultValues, callNames, funsOrNames, funType, applyIndex, false);
    var getterFunction = staticTearOffGetter(parameters);
    holder[getterName] = getterFunction;
  }
  function installInstanceTearOff(prototype, getterName, isIntercepted, requiredParameterCount, optionalParameterDefaultValues, callNames, funsOrNames, funType, applyIndex, needsDirectAccess) {
    isIntercepted = !!isIntercepted;
    var parameters = tearOffParameters(prototype, false, isIntercepted, requiredParameterCount, optionalParameterDefaultValues, callNames, funsOrNames, funType, applyIndex, !!needsDirectAccess);
    var getterFunction = instanceTearOffGetter(isIntercepted, parameters);
    prototype[getterName] = getterFunction;
  }
  function setOrUpdateInterceptorsByTag(newTags) {
    var tags = init.interceptorsByTag;
    if (!tags) {
      init.interceptorsByTag = newTags;
      return;
    }
    copyProperties(newTags, tags);
  }
  function setOrUpdateLeafTags(newTags) {
    var tags = init.leafTags;
    if (!tags) {
      init.leafTags = newTags;
      return;
    }
    copyProperties(newTags, tags);
  }
  function updateTypes(newTypes) {
    var types = init.types;
    var length = types.length;
    types.push.apply(types, newTypes);
    return length;
  }
  function updateHolder(holder, newHolder) {
    copyProperties(newHolder, holder);
    return holder;
  }
  var hunkHelpers = function() {
    var mkInstance = function(isIntercepted, requiredParameterCount, optionalParameterDefaultValues, callNames, applyIndex) {
        return function(container, getterName, name, funType) {
          return installInstanceTearOff(container, getterName, isIntercepted, requiredParameterCount, optionalParameterDefaultValues, callNames, [name], funType, applyIndex, false);
        };
      },
      mkStatic = function(requiredParameterCount, optionalParameterDefaultValues, callNames, applyIndex) {
        return function(container, getterName, name, funType) {
          return installStaticTearOff(container, getterName, requiredParameterCount, optionalParameterDefaultValues, callNames, [name], funType, applyIndex);
        };
      };
    return {inherit: inherit, inheritMany: inheritMany, mixin: mixinEasy, mixinHard: mixinHard, installStaticTearOff: installStaticTearOff, installInstanceTearOff: installInstanceTearOff, _instance_0u: mkInstance(0, 0, null, ["call$0"], 0), _instance_1u: mkInstance(0, 1, null, ["call$1"], 0), _instance_2u: mkInstance(0, 2, null, ["call$2"], 0), _instance_0i: mkInstance(1, 0, null, ["call$0"], 0), _instance_1i: mkInstance(1, 1, null, ["call$1"], 0), _instance_2i: mkInstance(1, 2, null, ["call$2"], 0), _static_0: mkStatic(0, null, ["call$0"], 0), _static_1: mkStatic(1, null, ["call$1"], 0), _static_2: mkStatic(2, null, ["call$2"], 0), makeConstList: makeConstList, lazy: lazy, lazyFinal: lazyFinal, lazyOld: lazyOld, updateHolder: updateHolder, convertToFastObject: convertToFastObject, updateTypes: updateTypes, setOrUpdateInterceptorsByTag: setOrUpdateInterceptorsByTag, setOrUpdateLeafTags: setOrUpdateLeafTags};
  }();
  function initializeDeferredHunk(hunk) {
    typesOffset = init.types.length;
    hunk(hunkHelpers, init, holders, $);
  }
  var A = {JS_CONST: function JS_CONST() {
    },
    hexDigitValue(char) {
      var letter,
        digit = char ^ 48;
      if (digit <= 9)
        return digit;
      letter = char | 32;
      if (97 <= letter && letter <= 102)
        return letter - 87;
      return -1;
    },
    checkNotNullable(value, $name, $T) {
      return value;
    },
    isToStringVisiting(object) {
      var t1, i;
      for (t1 = $.toStringVisiting.length, i = 0; i < t1; ++i)
        if (object === $.toStringVisiting[i])
          return true;
      return false;
    },
    SubListIterable$(_iterable, _start, _endOrLength, $E) {
      A.RangeError_checkNotNegative(_start, "start");
      if (_endOrLength != null) {
        A.RangeError_checkNotNegative(_endOrLength, "end");
        if (_start > _endOrLength)
          A.throwExpression(A.RangeError$range(_start, 0, _endOrLength, "start", null));
      }
      return new A.SubListIterable(_iterable, _start, _endOrLength, $E._eval$1("SubListIterable<0>"));
    },
    MappedIterable_MappedIterable(iterable, $function, $S, $T) {
      if (type$.EfficientLengthIterable_dynamic._is(iterable))
        return new A.EfficientLengthMappedIterable(iterable, $function, $S._eval$1("@<0>")._bind$1($T)._eval$1("EfficientLengthMappedIterable<1,2>"));
      return new A.MappedIterable(iterable, $function, $S._eval$1("@<0>")._bind$1($T)._eval$1("MappedIterable<1,2>"));
    },
    IterableElementError_noElement() {
      return new A.StateError("No element");
    },
    LateError: function LateError(t0) {
      this.__internal$_message = t0;
    },
    CodeUnits: function CodeUnits(t0) {
      this.__internal$_string = t0;
    },
    EfficientLengthIterable: function EfficientLengthIterable() {
    },
    ListIterable: function ListIterable() {
    },
    SubListIterable: function SubListIterable(t0, t1, t2, t3) {
      var _ = this;
      _.__internal$_iterable = t0;
      _._start = t1;
      _._endOrLength = t2;
      _.$ti = t3;
    },
    ListIterator: function ListIterator(t0, t1, t2) {
      var _ = this;
      _.__internal$_iterable = t0;
      _.__internal$_length = t1;
      _.__internal$_index = 0;
      _.__internal$_current = null;
      _.$ti = t2;
    },
    MappedIterable: function MappedIterable(t0, t1, t2) {
      this.__internal$_iterable = t0;
      this._f = t1;
      this.$ti = t2;
    },
    EfficientLengthMappedIterable: function EfficientLengthMappedIterable(t0, t1, t2) {
      this.__internal$_iterable = t0;
      this._f = t1;
      this.$ti = t2;
    },
    MappedIterator: function MappedIterator(t0, t1, t2) {
      var _ = this;
      _.__internal$_current = null;
      _._iterator = t0;
      _._f = t1;
      _.$ti = t2;
    },
    MappedListIterable: function MappedListIterable(t0, t1, t2) {
      this._source = t0;
      this._f = t1;
      this.$ti = t2;
    },
    WhereIterable: function WhereIterable(t0, t1, t2) {
      this.__internal$_iterable = t0;
      this._f = t1;
      this.$ti = t2;
    },
    WhereIterator: function WhereIterator(t0, t1, t2) {
      this._iterator = t0;
      this._f = t1;
      this.$ti = t2;
    },
    WhereTypeIterable: function WhereTypeIterable(t0, t1) {
      this._source = t0;
      this.$ti = t1;
    },
    WhereTypeIterator: function WhereTypeIterator(t0, t1) {
      this._source = t0;
      this.$ti = t1;
    },
    FixedLengthListMixin: function FixedLengthListMixin() {
    },
    UnmodifiableListMixin: function UnmodifiableListMixin() {
    },
    UnmodifiableListBase: function UnmodifiableListBase() {
    },
    unminifyOrTag(rawClassName) {
      var preserved = init.mangledGlobalNames[rawClassName];
      if (preserved != null)
        return preserved;
      return rawClassName;
    },
    isJsIndexable(object, record) {
      var result;
      if (record != null) {
        result = record.x;
        if (result != null)
          return result;
      }
      return type$.JavaScriptIndexingBehavior_dynamic._is(object);
    },
    S(value) {
      var result;
      if (typeof value == "string")
        return value;
      if (typeof value == "number") {
        if (value !== 0)
          return "" + value;
      } else if (true === value)
        return "true";
      else if (false === value)
        return "false";
      else if (value == null)
        return "null";
      result = J.toString$0$(value);
      return result;
    },
    Primitives_objectHashCode(object) {
      var hash,
        property = $.Primitives__identityHashCodeProperty;
      if (property == null)
        property = $.Primitives__identityHashCodeProperty = Symbol("identityHashCode");
      hash = object[property];
      if (hash == null) {
        hash = Math.random() * 0x3fffffff | 0;
        object[property] = hash;
      }
      return hash;
    },
    Primitives_parseInt(source, radix) {
      var decimalMatch, maxCharCode, digitsPart, t1, i, _null = null,
        match = /^\s*[+-]?((0x[a-f0-9]+)|(\d+)|([a-z0-9]+))\s*$/i.exec(source);
      if (match == null)
        return _null;
      if (3 >= match.length)
        return A.ioore(match, 3);
      decimalMatch = match[3];
      if (radix == null) {
        if (decimalMatch != null)
          return parseInt(source, 10);
        if (match[2] != null)
          return parseInt(source, 16);
        return _null;
      }
      if (radix < 2 || radix > 36)
        throw A.wrapException(A.RangeError$range(radix, 2, 36, "radix", _null));
      if (radix === 10 && decimalMatch != null)
        return parseInt(source, 10);
      if (radix < 10 || decimalMatch == null) {
        maxCharCode = radix <= 10 ? 47 + radix : 86 + radix;
        digitsPart = match[1];
        for (t1 = digitsPart.length, i = 0; i < t1; ++i)
          if ((digitsPart.charCodeAt(i) | 32) > maxCharCode)
            return _null;
      }
      return parseInt(source, radix);
    },
    Primitives_objectTypeName(object) {
      return A.Primitives__objectTypeNameNewRti(object);
    },
    Primitives__objectTypeNameNewRti(object) {
      var interceptor, dispatchName, $constructor, constructorName;
      if (object instanceof A.Object)
        return A._rtiToString(A.instanceType(object), null);
      interceptor = J.getInterceptor$(object);
      if (interceptor === B.Interceptor_methods || interceptor === B.JavaScriptObject_methods || type$.UnknownJavaScriptObject._is(object)) {
        dispatchName = B.C_JS_CONST(object);
        if (dispatchName !== "Object" && dispatchName !== "")
          return dispatchName;
        $constructor = object.constructor;
        if (typeof $constructor == "function") {
          constructorName = $constructor.name;
          if (typeof constructorName == "string" && constructorName !== "Object" && constructorName !== "")
            return constructorName;
        }
      }
      return A._rtiToString(A.instanceType(object), null);
    },
    Primitives_safeToString(object) {
      if (typeof object == "number" || A._isBool(object))
        return J.toString$0$(object);
      if (typeof object == "string")
        return JSON.stringify(object);
      if (object instanceof A.Closure)
        return object.toString$0(0);
      return "Instance of '" + A.Primitives_objectTypeName(object) + "'";
    },
    Primitives_currentUri() {
      if (!!self.location)
        return self.location.href;
      return null;
    },
    Primitives_stringFromNativeUint8List(charCodes, start, end) {
      var i, result, i0, chunkEnd;
      if (end <= 500 && start === 0 && end === charCodes.length)
        return String.fromCharCode.apply(null, charCodes);
      for (i = start, result = ""; i < end; i = i0) {
        i0 = i + 500;
        chunkEnd = i0 < end ? i0 : end;
        result += String.fromCharCode.apply(null, charCodes.subarray(i, chunkEnd));
      }
      return result;
    },
    Primitives_stringFromCharCode(charCode) {
      var bits;
      if (0 <= charCode) {
        if (charCode <= 65535)
          return String.fromCharCode(charCode);
        if (charCode <= 1114111) {
          bits = charCode - 65536;
          return String.fromCharCode((B.JSInt_methods._shrOtherPositive$1(bits, 10) | 55296) >>> 0, bits & 1023 | 56320);
        }
      }
      throw A.wrapException(A.RangeError$range(charCode, 0, 1114111, null, null));
    },
    iae(argument) {
      throw A.wrapException(A.argumentErrorValue(argument));
    },
    ioore(receiver, index) {
      if (receiver == null)
        J.get$length$asx(receiver);
      throw A.wrapException(A.diagnoseIndexError(receiver, index));
    },
    diagnoseIndexError(indexable, index) {
      var $length, _s5_ = "index";
      if (!A._isInt(index))
        return new A.ArgumentError(true, index, _s5_, null);
      $length = J.get$length$asx(indexable);
      if (index < 0 || index >= $length)
        return A.IndexError$withLength(index, $length, indexable, _s5_);
      return new A.RangeError(null, null, true, index, _s5_, "Value not in range");
    },
    argumentErrorValue(object) {
      return new A.ArgumentError(true, object, null, null);
    },
    wrapException(ex) {
      return A.initializeExceptionWrapper(new Error(), ex);
    },
    initializeExceptionWrapper(wrapper, ex) {
      var t1;
      if (ex == null)
        ex = new A.TypeError();
      wrapper.dartException = ex;
      t1 = A.toStringWrapper;
      if ("defineProperty" in Object) {
        Object.defineProperty(wrapper, "message", {get: t1});
        wrapper.name = "";
      } else
        wrapper.toString = t1;
      return wrapper;
    },
    toStringWrapper() {
      return J.toString$0$(this.dartException);
    },
    throwExpression(ex) {
      throw A.wrapException(ex);
    },
    throwExpressionWithWrapper(ex, wrapper) {
      throw A.initializeExceptionWrapper(wrapper, ex);
    },
    throwConcurrentModificationError(collection) {
      throw A.wrapException(A.ConcurrentModificationError$(collection));
    },
    TypeErrorDecoder_extractPattern(message) {
      var match, $arguments, argumentsExpr, expr, method, receiver;
      message = A.quoteStringForRegExp(message.replace(String({}), "$receiver$"));
      match = message.match(/\\\$[a-zA-Z]+\\\$/g);
      if (match == null)
        match = A._setArrayType([], type$.JSArray_String);
      $arguments = match.indexOf("\\$arguments\\$");
      argumentsExpr = match.indexOf("\\$argumentsExpr\\$");
      expr = match.indexOf("\\$expr\\$");
      method = match.indexOf("\\$method\\$");
      receiver = match.indexOf("\\$receiver\\$");
      return new A.TypeErrorDecoder(message.replace(new RegExp("\\\\\\$arguments\\\\\\$", "g"), "((?:x|[^x])*)").replace(new RegExp("\\\\\\$argumentsExpr\\\\\\$", "g"), "((?:x|[^x])*)").replace(new RegExp("\\\\\\$expr\\\\\\$", "g"), "((?:x|[^x])*)").replace(new RegExp("\\\\\\$method\\\\\\$", "g"), "((?:x|[^x])*)").replace(new RegExp("\\\\\\$receiver\\\\\\$", "g"), "((?:x|[^x])*)"), $arguments, argumentsExpr, expr, method, receiver);
    },
    TypeErrorDecoder_provokeCallErrorOn(expression) {
      return function($expr$) {
        var $argumentsExpr$ = "$arguments$";
        try {
          $expr$.$method$($argumentsExpr$);
        } catch (e) {
          return e.message;
        }
      }(expression);
    },
    TypeErrorDecoder_provokePropertyErrorOn(expression) {
      return function($expr$) {
        try {
          $expr$.$method$;
        } catch (e) {
          return e.message;
        }
      }(expression);
    },
    JsNoSuchMethodError$(_message, match) {
      var t1 = match == null,
        t2 = t1 ? null : match.method;
      return new A.JsNoSuchMethodError(_message, t2, t1 ? null : match.receiver);
    },
    unwrapException(ex) {
      var t1;
      if (ex == null)
        return new A.NullThrownFromJavaScriptException(ex);
      if (ex instanceof A.ExceptionAndStackTrace) {
        t1 = ex.dartException;
        return A.saveStackTrace(ex, t1 == null ? type$.Object._as(t1) : t1);
      }
      if (typeof ex !== "object")
        return ex;
      if ("dartException" in ex)
        return A.saveStackTrace(ex, ex.dartException);
      return A._unwrapNonDartException(ex);
    },
    saveStackTrace(ex, error) {
      if (type$.Error._is(error))
        if (error.$thrownJsError == null)
          error.$thrownJsError = ex;
      return error;
    },
    _unwrapNonDartException(ex) {
      var message, number, ieErrorCode, nsme, notClosure, nullCall, nullLiteralCall, undefCall, undefLiteralCall, nullProperty, undefProperty, undefLiteralProperty, match;
      if (!("message" in ex))
        return ex;
      message = ex.message;
      if ("number" in ex && typeof ex.number == "number") {
        number = ex.number;
        ieErrorCode = number & 65535;
        if ((B.JSInt_methods._shrOtherPositive$1(number, 16) & 8191) === 10)
          switch (ieErrorCode) {
            case 438:
              return A.saveStackTrace(ex, A.JsNoSuchMethodError$(A.S(message) + " (Error " + ieErrorCode + ")", null));
            case 445:
            case 5007:
              A.S(message);
              return A.saveStackTrace(ex, new A.NullError());
          }
      }
      if (ex instanceof TypeError) {
        nsme = $.$get$TypeErrorDecoder_noSuchMethodPattern();
        notClosure = $.$get$TypeErrorDecoder_notClosurePattern();
        nullCall = $.$get$TypeErrorDecoder_nullCallPattern();
        nullLiteralCall = $.$get$TypeErrorDecoder_nullLiteralCallPattern();
        undefCall = $.$get$TypeErrorDecoder_undefinedCallPattern();
        undefLiteralCall = $.$get$TypeErrorDecoder_undefinedLiteralCallPattern();
        nullProperty = $.$get$TypeErrorDecoder_nullPropertyPattern();
        $.$get$TypeErrorDecoder_nullLiteralPropertyPattern();
        undefProperty = $.$get$TypeErrorDecoder_undefinedPropertyPattern();
        undefLiteralProperty = $.$get$TypeErrorDecoder_undefinedLiteralPropertyPattern();
        match = nsme.matchTypeError$1(message);
        if (match != null)
          return A.saveStackTrace(ex, A.JsNoSuchMethodError$(A._asString(message), match));
        else {
          match = notClosure.matchTypeError$1(message);
          if (match != null) {
            match.method = "call";
            return A.saveStackTrace(ex, A.JsNoSuchMethodError$(A._asString(message), match));
          } else if (nullCall.matchTypeError$1(message) != null || nullLiteralCall.matchTypeError$1(message) != null || undefCall.matchTypeError$1(message) != null || undefLiteralCall.matchTypeError$1(message) != null || nullProperty.matchTypeError$1(message) != null || nullLiteralCall.matchTypeError$1(message) != null || undefProperty.matchTypeError$1(message) != null || undefLiteralProperty.matchTypeError$1(message) != null) {
            A._asString(message);
            return A.saveStackTrace(ex, new A.NullError());
          }
        }
        return A.saveStackTrace(ex, new A.UnknownJsTypeError(typeof message == "string" ? message : ""));
      }
      if (ex instanceof RangeError) {
        if (typeof message == "string" && message.indexOf("call stack") !== -1)
          return new A.StackOverflowError();
        message = function(ex) {
          try {
            return String(ex);
          } catch (e) {
          }
          return null;
        }(ex);
        return A.saveStackTrace(ex, new A.ArgumentError(false, null, null, typeof message == "string" ? message.replace(/^RangeError:\s*/, "") : message));
      }
      if (typeof InternalError == "function" && ex instanceof InternalError)
        if (typeof message == "string" && message === "too much recursion")
          return new A.StackOverflowError();
      return ex;
    },
    getTraceFromException(exception) {
      var trace;
      if (exception instanceof A.ExceptionAndStackTrace)
        return exception.stackTrace;
      if (exception == null)
        return new A._StackTrace(exception);
      trace = exception.$cachedTrace;
      if (trace != null)
        return trace;
      trace = new A._StackTrace(exception);
      if (typeof exception === "object")
        exception.$cachedTrace = trace;
      return trace;
    },
    objectHashCode(object) {
      if (object == null)
        return J.get$hashCode$(object);
      if (typeof object == "object")
        return A.Primitives_objectHashCode(object);
      return J.get$hashCode$(object);
    },
    fillLiteralMap(keyValuePairs, result) {
      var t1, t2, index, index0, key, value, strings, table, cell, nums, rest, hash, bucket,
        $length = keyValuePairs.length;
      for (t1 = result.$ti, t2 = t1._precomputed1, t1 = t1._rest[1], index = 0; index < $length;) {
        index0 = index + 1;
        key = keyValuePairs[index];
        index = index0 + 1;
        value = keyValuePairs[index0];
        t2._as(key);
        t1._as(value);
        if (typeof key == "string") {
          strings = result.__js_helper$_strings;
          if (strings == null) {
            table = Object.create(null);
            table["<non-identifier-key>"] = table;
            delete table["<non-identifier-key>"];
            result.__js_helper$_strings = table;
            strings = table;
          }
          cell = strings[key];
          if (cell == null)
            strings[key] = result._newLinkedCell$2(key, value);
          else
            cell.hashMapCellValue = value;
        } else if (typeof key == "number" && (key & 0x3fffffff) === key) {
          nums = result.__js_helper$_nums;
          if (nums == null) {
            table = Object.create(null);
            table["<non-identifier-key>"] = table;
            delete table["<non-identifier-key>"];
            result.__js_helper$_nums = table;
            nums = table;
          }
          cell = nums[key];
          if (cell == null)
            nums[key] = result._newLinkedCell$2(key, value);
          else
            cell.hashMapCellValue = value;
        } else {
          rest = result.__js_helper$_rest;
          if (rest == null) {
            table = Object.create(null);
            table["<non-identifier-key>"] = table;
            delete table["<non-identifier-key>"];
            result.__js_helper$_rest = table;
            rest = table;
          }
          hash = J.get$hashCode$(key) & 1073741823;
          bucket = rest[hash];
          if (bucket == null)
            rest[hash] = [result._newLinkedCell$2(key, value)];
          else {
            index0 = result.internalFindBucketIndex$2(bucket, key);
            if (index0 >= 0)
              bucket[index0].hashMapCellValue = value;
            else
              bucket.push(result._newLinkedCell$2(key, value));
          }
        }
      }
      return result;
    },
    _invokeClosure(closure, numberOfArguments, arg1, arg2, arg3, arg4) {
      type$.Function._as(closure);
      switch (A._asInt(numberOfArguments)) {
        case 0:
          return closure.call$0();
        case 1:
          return closure.call$1(arg1);
        case 2:
          return closure.call$2(arg1, arg2);
        case 3:
          return closure.call$3(arg1, arg2, arg3);
        case 4:
          return closure.call$4(arg1, arg2, arg3, arg4);
      }
      throw A.wrapException(new A._Exception("Unsupported number of arguments for wrapped closure"));
    },
    convertDartClosureToJS(closure, arity) {
      var $function = closure.$identity;
      if (!!$function)
        return $function;
      $function = A.convertDartClosureToJSUncached(closure, arity);
      closure.$identity = $function;
      return $function;
    },
    convertDartClosureToJSUncached(closure, arity) {
      var entry;
      switch (arity) {
        case 0:
          entry = closure.call$0;
          break;
        case 1:
          entry = closure.call$1;
          break;
        case 2:
          entry = closure.call$2;
          break;
        case 3:
          entry = closure.call$3;
          break;
        case 4:
          entry = closure.call$4;
          break;
        default:
          entry = null;
      }
      if (entry != null)
        return entry.bind(closure);
      return function(closure, arity, invoke) {
        return function(a1, a2, a3, a4) {
          return invoke(closure, arity, a1, a2, a3, a4);
        };
      }(closure, arity, A._invokeClosure);
    },
    Closure_fromTearOff(parameters) {
      var $prototype, $constructor, t2, trampoline, applyTrampoline, i, stub, stub0, stubName, stubCallName,
        container = parameters.co,
        isStatic = parameters.iS,
        isIntercepted = parameters.iI,
        needsDirectAccess = parameters.nDA,
        applyTrampolineIndex = parameters.aI,
        funsOrNames = parameters.fs,
        callNames = parameters.cs,
        $name = funsOrNames[0],
        callName = callNames[0],
        $function = container[$name],
        t1 = parameters.fT;
      t1.toString;
      $prototype = isStatic ? Object.create(new A.StaticClosure().constructor.prototype) : Object.create(new A.BoundClosure(null, null).constructor.prototype);
      $prototype.$initialize = $prototype.constructor;
      if (isStatic)
        $constructor = function static_tear_off() {
          this.$initialize();
        };
      else
        $constructor = function tear_off(a, b) {
          this.$initialize(a, b);
        };
      $prototype.constructor = $constructor;
      $constructor.prototype = $prototype;
      $prototype.$_name = $name;
      $prototype.$_target = $function;
      t2 = !isStatic;
      if (t2)
        trampoline = A.Closure_forwardCallTo($name, $function, isIntercepted, needsDirectAccess);
      else {
        $prototype.$static_name = $name;
        trampoline = $function;
      }
      $prototype.$signature = A.Closure__computeSignatureFunctionNewRti(t1, isStatic, isIntercepted);
      $prototype[callName] = trampoline;
      for (applyTrampoline = trampoline, i = 1; i < funsOrNames.length; ++i) {
        stub = funsOrNames[i];
        if (typeof stub == "string") {
          stub0 = container[stub];
          stubName = stub;
          stub = stub0;
        } else
          stubName = "";
        stubCallName = callNames[i];
        if (stubCallName != null) {
          if (t2)
            stub = A.Closure_forwardCallTo(stubName, stub, isIntercepted, needsDirectAccess);
          $prototype[stubCallName] = stub;
        }
        if (i === applyTrampolineIndex)
          applyTrampoline = stub;
      }
      $prototype["call*"] = applyTrampoline;
      $prototype.$requiredArgCount = parameters.rC;
      $prototype.$defaultValues = parameters.dV;
      return $constructor;
    },
    Closure__computeSignatureFunctionNewRti(functionType, isStatic, isIntercepted) {
      if (typeof functionType == "number")
        return functionType;
      if (typeof functionType == "string") {
        if (isStatic)
          throw A.wrapException("Cannot compute signature for static tearoff.");
        return function(recipe, evalOnReceiver) {
          return function() {
            return evalOnReceiver(this, recipe);
          };
        }(functionType, A.BoundClosure_evalRecipe);
      }
      throw A.wrapException("Error in functionType of tearoff");
    },
    Closure_cspForwardCall(arity, needsDirectAccess, stubName, $function) {
      var getReceiver = A.BoundClosure_receiverOf;
      switch (needsDirectAccess ? -1 : arity) {
        case 0:
          return function(entry, receiverOf) {
            return function() {
              return receiverOf(this)[entry]();
            };
          }(stubName, getReceiver);
        case 1:
          return function(entry, receiverOf) {
            return function(a) {
              return receiverOf(this)[entry](a);
            };
          }(stubName, getReceiver);
        case 2:
          return function(entry, receiverOf) {
            return function(a, b) {
              return receiverOf(this)[entry](a, b);
            };
          }(stubName, getReceiver);
        case 3:
          return function(entry, receiverOf) {
            return function(a, b, c) {
              return receiverOf(this)[entry](a, b, c);
            };
          }(stubName, getReceiver);
        case 4:
          return function(entry, receiverOf) {
            return function(a, b, c, d) {
              return receiverOf(this)[entry](a, b, c, d);
            };
          }(stubName, getReceiver);
        case 5:
          return function(entry, receiverOf) {
            return function(a, b, c, d, e) {
              return receiverOf(this)[entry](a, b, c, d, e);
            };
          }(stubName, getReceiver);
        default:
          return function(f, receiverOf) {
            return function() {
              return f.apply(receiverOf(this), arguments);
            };
          }($function, getReceiver);
      }
    },
    Closure_forwardCallTo(stubName, $function, isIntercepted, needsDirectAccess) {
      var arity, t1;
      if (isIntercepted)
        return A.Closure_forwardInterceptedCallTo(stubName, $function, needsDirectAccess);
      arity = $function.length;
      t1 = A.Closure_cspForwardCall(arity, needsDirectAccess, stubName, $function);
      return t1;
    },
    Closure_cspForwardInterceptedCall(arity, needsDirectAccess, stubName, $function) {
      var getReceiver = A.BoundClosure_receiverOf,
        getInterceptor = A.BoundClosure_interceptorOf;
      switch (needsDirectAccess ? -1 : arity) {
        case 0:
          throw A.wrapException(new A.RuntimeError("Intercepted function with no arguments."));
        case 1:
          return function(entry, interceptorOf, receiverOf) {
            return function() {
              return interceptorOf(this)[entry](receiverOf(this));
            };
          }(stubName, getInterceptor, getReceiver);
        case 2:
          return function(entry, interceptorOf, receiverOf) {
            return function(a) {
              return interceptorOf(this)[entry](receiverOf(this), a);
            };
          }(stubName, getInterceptor, getReceiver);
        case 3:
          return function(entry, interceptorOf, receiverOf) {
            return function(a, b) {
              return interceptorOf(this)[entry](receiverOf(this), a, b);
            };
          }(stubName, getInterceptor, getReceiver);
        case 4:
          return function(entry, interceptorOf, receiverOf) {
            return function(a, b, c) {
              return interceptorOf(this)[entry](receiverOf(this), a, b, c);
            };
          }(stubName, getInterceptor, getReceiver);
        case 5:
          return function(entry, interceptorOf, receiverOf) {
            return function(a, b, c, d) {
              return interceptorOf(this)[entry](receiverOf(this), a, b, c, d);
            };
          }(stubName, getInterceptor, getReceiver);
        case 6:
          return function(entry, interceptorOf, receiverOf) {
            return function(a, b, c, d, e) {
              return interceptorOf(this)[entry](receiverOf(this), a, b, c, d, e);
            };
          }(stubName, getInterceptor, getReceiver);
        default:
          return function(f, interceptorOf, receiverOf) {
            return function() {
              var a = [receiverOf(this)];
              Array.prototype.push.apply(a, arguments);
              return f.apply(interceptorOf(this), a);
            };
          }($function, getInterceptor, getReceiver);
      }
    },
    Closure_forwardInterceptedCallTo(stubName, $function, needsDirectAccess) {
      var arity, t1;
      if ($.BoundClosure__interceptorFieldNameCache == null)
        $.BoundClosure__interceptorFieldNameCache = A.BoundClosure__computeFieldNamed("interceptor");
      if ($.BoundClosure__receiverFieldNameCache == null)
        $.BoundClosure__receiverFieldNameCache = A.BoundClosure__computeFieldNamed("receiver");
      arity = $function.length;
      t1 = A.Closure_cspForwardInterceptedCall(arity, needsDirectAccess, stubName, $function);
      return t1;
    },
    closureFromTearOff(parameters) {
      return A.Closure_fromTearOff(parameters);
    },
    BoundClosure_evalRecipe(closure, recipe) {
      return A._Universe_evalInEnvironment(init.typeUniverse, A.instanceType(closure._receiver), recipe);
    },
    BoundClosure_receiverOf(closure) {
      return closure._receiver;
    },
    BoundClosure_interceptorOf(closure) {
      return closure._interceptor;
    },
    BoundClosure__computeFieldNamed(fieldName) {
      var t1, i, $name,
        template = new A.BoundClosure("receiver", "interceptor"),
        names = J.JSArray_markFixedList(Object.getOwnPropertyNames(template), type$.nullable_Object);
      for (t1 = names.length, i = 0; i < t1; ++i) {
        $name = names[i];
        if (template[$name] === fieldName)
          return $name;
      }
      throw A.wrapException(A.ArgumentError$("Field name " + fieldName + " not found.", null));
    },
    boolConversionCheck(value) {
      if (value == null)
        A.assertThrow("boolean expression must not be null");
      return value;
    },
    assertThrow(message) {
      throw A.wrapException(new A._AssertionError(message));
    },
    throwCyclicInit(staticName) {
      throw A.wrapException(new A._CyclicInitializationError(staticName));
    },
    getIsolateAffinityTag($name) {
      return init.getIsolateTag($name);
    },
    convertMainArgumentList(args) {
      var i,
        result = A._setArrayType([], type$.JSArray_String);
      if (args == null)
        return result;
      if (Array.isArray(args)) {
        for (i = 0; i < args.length; ++i)
          result.push(String(args[i]));
        return result;
      }
      result.push(String(args));
      return result;
    },
    lookupAndCacheInterceptor(obj) {
      var interceptor, interceptorClass, altTag, mark, t1,
        tag = A._asString($.getTagFunction.call$1(obj)),
        record = $.dispatchRecordsForInstanceTags[tag];
      if (record != null) {
        Object.defineProperty(obj, init.dispatchPropertyName, {value: record, enumerable: false, writable: true, configurable: true});
        return record.i;
      }
      interceptor = $.interceptorsForUncacheableTags[tag];
      if (interceptor != null)
        return interceptor;
      interceptorClass = init.interceptorsByTag[tag];
      if (interceptorClass == null) {
        altTag = A._asStringQ($.alternateTagFunction.call$2(obj, tag));
        if (altTag != null) {
          record = $.dispatchRecordsForInstanceTags[altTag];
          if (record != null) {
            Object.defineProperty(obj, init.dispatchPropertyName, {value: record, enumerable: false, writable: true, configurable: true});
            return record.i;
          }
          interceptor = $.interceptorsForUncacheableTags[altTag];
          if (interceptor != null)
            return interceptor;
          interceptorClass = init.interceptorsByTag[altTag];
          tag = altTag;
        }
      }
      if (interceptorClass == null)
        return null;
      interceptor = interceptorClass.prototype;
      mark = tag[0];
      if (mark === "!") {
        record = A.makeLeafDispatchRecord(interceptor);
        $.dispatchRecordsForInstanceTags[tag] = record;
        Object.defineProperty(obj, init.dispatchPropertyName, {value: record, enumerable: false, writable: true, configurable: true});
        return record.i;
      }
      if (mark === "~") {
        $.interceptorsForUncacheableTags[tag] = interceptor;
        return interceptor;
      }
      if (mark === "-") {
        t1 = A.makeLeafDispatchRecord(interceptor);
        Object.defineProperty(Object.getPrototypeOf(obj), init.dispatchPropertyName, {value: t1, enumerable: false, writable: true, configurable: true});
        return t1.i;
      }
      if (mark === "+")
        return A.patchInteriorProto(obj, interceptor);
      if (mark === "*")
        throw A.wrapException(A.UnimplementedError$(tag));
      if (init.leafTags[tag] === true) {
        t1 = A.makeLeafDispatchRecord(interceptor);
        Object.defineProperty(Object.getPrototypeOf(obj), init.dispatchPropertyName, {value: t1, enumerable: false, writable: true, configurable: true});
        return t1.i;
      } else
        return A.patchInteriorProto(obj, interceptor);
    },
    patchInteriorProto(obj, interceptor) {
      var proto = Object.getPrototypeOf(obj);
      Object.defineProperty(proto, init.dispatchPropertyName, {value: J.makeDispatchRecord(interceptor, proto, null, null), enumerable: false, writable: true, configurable: true});
      return interceptor;
    },
    makeLeafDispatchRecord(interceptor) {
      return J.makeDispatchRecord(interceptor, false, null, !!interceptor.$isJavaScriptIndexingBehavior);
    },
    makeDefaultDispatchRecord(tag, interceptorClass, proto) {
      var interceptor = interceptorClass.prototype;
      if (init.leafTags[tag] === true)
        return A.makeLeafDispatchRecord(interceptor);
      else
        return J.makeDispatchRecord(interceptor, proto, null, null);
    },
    initNativeDispatch() {
      if (true === $.initNativeDispatchFlag)
        return;
      $.initNativeDispatchFlag = true;
      A.initNativeDispatchContinue();
    },
    initNativeDispatchContinue() {
      var map, tags, fun, i, tag, proto, record, interceptorClass;
      $.dispatchRecordsForInstanceTags = Object.create(null);
      $.interceptorsForUncacheableTags = Object.create(null);
      A.initHooks();
      map = init.interceptorsByTag;
      tags = Object.getOwnPropertyNames(map);
      if (typeof window != "undefined") {
        window;
        fun = function() {
        };
        for (i = 0; i < tags.length; ++i) {
          tag = tags[i];
          proto = $.prototypeForTagFunction.call$1(tag);
          if (proto != null) {
            record = A.makeDefaultDispatchRecord(tag, map[tag], proto);
            if (record != null) {
              Object.defineProperty(proto, init.dispatchPropertyName, {value: record, enumerable: false, writable: true, configurable: true});
              fun.prototype = proto;
            }
          }
        }
      }
      for (i = 0; i < tags.length; ++i) {
        tag = tags[i];
        if (/^[A-Za-z_]/.test(tag)) {
          interceptorClass = map[tag];
          map["!" + tag] = interceptorClass;
          map["~" + tag] = interceptorClass;
          map["-" + tag] = interceptorClass;
          map["+" + tag] = interceptorClass;
          map["*" + tag] = interceptorClass;
        }
      }
    },
    initHooks() {
      var transformers, i, transformer, getTag, getUnknownTag, prototypeForTag,
        hooks = B.C_JS_CONST0();
      hooks = A.applyHooksTransformer(B.C_JS_CONST1, A.applyHooksTransformer(B.C_JS_CONST2, A.applyHooksTransformer(B.C_JS_CONST3, A.applyHooksTransformer(B.C_JS_CONST3, A.applyHooksTransformer(B.C_JS_CONST4, A.applyHooksTransformer(B.C_JS_CONST5, A.applyHooksTransformer(B.C_JS_CONST6(B.C_JS_CONST), hooks)))))));
      if (typeof dartNativeDispatchHooksTransformer != "undefined") {
        transformers = dartNativeDispatchHooksTransformer;
        if (typeof transformers == "function")
          transformers = [transformers];
        if (Array.isArray(transformers))
          for (i = 0; i < transformers.length; ++i) {
            transformer = transformers[i];
            if (typeof transformer == "function")
              hooks = transformer(hooks) || hooks;
          }
      }
      getTag = hooks.getTag;
      getUnknownTag = hooks.getUnknownTag;
      prototypeForTag = hooks.prototypeForTag;
      $.getTagFunction = new A.initHooks_closure(getTag);
      $.alternateTagFunction = new A.initHooks_closure0(getUnknownTag);
      $.prototypeForTagFunction = new A.initHooks_closure1(prototypeForTag);
    },
    applyHooksTransformer(transformer, hooks) {
      return transformer(hooks) || hooks;
    },
    createRecordTypePredicate(shape, fieldRtis) {
      var $length = fieldRtis.length,
        $function = init.rttc["" + $length + ";" + shape];
      if ($function == null)
        return null;
      if ($length === 0)
        return $function;
      if ($length === $function.length)
        return $function.apply(null, fieldRtis);
      return $function(fieldRtis);
    },
    JSSyntaxRegExp_makeNative(source, multiLine, caseSensitive, unicode, dotAll, global) {
      var m = multiLine ? "m" : "",
        i = caseSensitive ? "" : "i",
        u = unicode ? "u" : "",
        s = dotAll ? "s" : "",
        g = global ? "g" : "",
        regexp = function(source, modifiers) {
          try {
            return new RegExp(source, modifiers);
          } catch (e) {
            return e;
          }
        }(source, m + i + u + s + g);
      if (regexp instanceof RegExp)
        return regexp;
      throw A.wrapException(A.FormatException$("Illegal RegExp pattern (" + String(regexp) + ")", source, null));
    },
    stringContainsUnchecked(receiver, other, startIndex) {
      var t1;
      if (typeof other == "string")
        return receiver.indexOf(other, startIndex) >= 0;
      else if (other instanceof A.JSSyntaxRegExp) {
        t1 = B.JSString_methods.substring$1(receiver, startIndex);
        return other._nativeRegExp.test(t1);
      } else {
        t1 = J.allMatches$1$s(other, B.JSString_methods.substring$1(receiver, startIndex));
        return !t1.get$isEmpty(t1);
      }
    },
    quoteStringForRegExp(string) {
      if (/[[\]{}()*+?.\\^$|]/.test(string))
        return string.replace(/[[\]{}()*+?.\\^$|]/g, "\\$&");
      return string;
    },
    TypeErrorDecoder: function TypeErrorDecoder(t0, t1, t2, t3, t4, t5) {
      var _ = this;
      _._pattern = t0;
      _._arguments = t1;
      _._argumentsExpr = t2;
      _._expr = t3;
      _._method = t4;
      _._receiver = t5;
    },
    NullError: function NullError() {
    },
    JsNoSuchMethodError: function JsNoSuchMethodError(t0, t1, t2) {
      this.__js_helper$_message = t0;
      this._method = t1;
      this._receiver = t2;
    },
    UnknownJsTypeError: function UnknownJsTypeError(t0) {
      this.__js_helper$_message = t0;
    },
    NullThrownFromJavaScriptException: function NullThrownFromJavaScriptException(t0) {
      this._irritant = t0;
    },
    ExceptionAndStackTrace: function ExceptionAndStackTrace(t0, t1) {
      this.dartException = t0;
      this.stackTrace = t1;
    },
    _StackTrace: function _StackTrace(t0) {
      this._exception = t0;
      this._trace = null;
    },
    Closure: function Closure() {
    },
    Closure0Args: function Closure0Args() {
    },
    Closure2Args: function Closure2Args() {
    },
    TearOffClosure: function TearOffClosure() {
    },
    StaticClosure: function StaticClosure() {
    },
    BoundClosure: function BoundClosure(t0, t1) {
      this._receiver = t0;
      this._interceptor = t1;
    },
    _CyclicInitializationError: function _CyclicInitializationError(t0) {
      this.variableName = t0;
    },
    RuntimeError: function RuntimeError(t0) {
      this.message = t0;
    },
    _AssertionError: function _AssertionError(t0) {
      this.message = t0;
    },
    JsLinkedHashMap: function JsLinkedHashMap(t0) {
      var _ = this;
      _.__js_helper$_length = 0;
      _._last = _._first = _.__js_helper$_rest = _.__js_helper$_nums = _.__js_helper$_strings = null;
      _._modifications = 0;
      _.$ti = t0;
    },
    LinkedHashMapCell: function LinkedHashMapCell(t0, t1) {
      this.hashMapCellKey = t0;
      this.hashMapCellValue = t1;
      this._next = null;
    },
    LinkedHashMapKeyIterable: function LinkedHashMapKeyIterable(t0, t1) {
      this.__js_helper$_map = t0;
      this.$ti = t1;
    },
    LinkedHashMapKeyIterator: function LinkedHashMapKeyIterator(t0, t1, t2) {
      var _ = this;
      _.__js_helper$_map = t0;
      _._modifications = t1;
      _.__js_helper$_current = _._cell = null;
      _.$ti = t2;
    },
    initHooks_closure: function initHooks_closure(t0) {
      this.getTag = t0;
    },
    initHooks_closure0: function initHooks_closure0(t0) {
      this.getUnknownTag = t0;
    },
    initHooks_closure1: function initHooks_closure1(t0) {
      this.prototypeForTag = t0;
    },
    JSSyntaxRegExp: function JSSyntaxRegExp(t0, t1) {
      var _ = this;
      _.pattern = t0;
      _._nativeRegExp = t1;
      _._nativeAnchoredRegExp = _._nativeGlobalRegExp = null;
    },
    _MatchImplementation: function _MatchImplementation(t0) {
      this._match = t0;
    },
    _AllMatchesIterable: function _AllMatchesIterable(t0, t1, t2) {
      this._re = t0;
      this._string = t1;
      this.__js_helper$_start = t2;
    },
    _AllMatchesIterator: function _AllMatchesIterator(t0, t1, t2) {
      var _ = this;
      _._regExp = t0;
      _._string = t1;
      _._nextIndex = t2;
      _.__js_helper$_current = null;
    },
    StringMatch: function StringMatch(t0, t1) {
      this.start = t0;
      this.pattern = t1;
    },
    _StringAllMatchesIterable: function _StringAllMatchesIterable(t0, t1, t2) {
      this._input = t0;
      this._pattern = t1;
      this.__js_helper$_index = t2;
    },
    _StringAllMatchesIterator: function _StringAllMatchesIterator(t0, t1, t2) {
      var _ = this;
      _._input = t0;
      _._pattern = t1;
      _.__js_helper$_index = t2;
      _.__js_helper$_current = null;
    },
    _ensureNativeList(list) {
      return list;
    },
    _checkValidIndex(index, list, $length) {
      if (index >>> 0 !== index || index >= $length)
        throw A.wrapException(A.diagnoseIndexError(list, index));
    },
    NativeByteBuffer: function NativeByteBuffer() {
    },
    NativeTypedData: function NativeTypedData() {
    },
    NativeByteData: function NativeByteData() {
    },
    NativeTypedArray: function NativeTypedArray() {
    },
    NativeTypedArrayOfDouble: function NativeTypedArrayOfDouble() {
    },
    NativeTypedArrayOfInt: function NativeTypedArrayOfInt() {
    },
    NativeFloat32List: function NativeFloat32List() {
    },
    NativeFloat64List: function NativeFloat64List() {
    },
    NativeInt16List: function NativeInt16List() {
    },
    NativeInt32List: function NativeInt32List() {
    },
    NativeInt8List: function NativeInt8List() {
    },
    NativeUint16List: function NativeUint16List() {
    },
    NativeUint32List: function NativeUint32List() {
    },
    NativeUint8ClampedList: function NativeUint8ClampedList() {
    },
    NativeUint8List: function NativeUint8List() {
    },
    _NativeTypedArrayOfDouble_NativeTypedArray_ListMixin: function _NativeTypedArrayOfDouble_NativeTypedArray_ListMixin() {
    },
    _NativeTypedArrayOfDouble_NativeTypedArray_ListMixin_FixedLengthListMixin: function _NativeTypedArrayOfDouble_NativeTypedArray_ListMixin_FixedLengthListMixin() {
    },
    _NativeTypedArrayOfInt_NativeTypedArray_ListMixin: function _NativeTypedArrayOfInt_NativeTypedArray_ListMixin() {
    },
    _NativeTypedArrayOfInt_NativeTypedArray_ListMixin_FixedLengthListMixin: function _NativeTypedArrayOfInt_NativeTypedArray_ListMixin_FixedLengthListMixin() {
    },
    Rti__getQuestionFromStar(universe, rti) {
      var question = rti._precomputed1;
      return question == null ? rti._precomputed1 = A._Universe__lookupQuestionRti(universe, rti._primary, true) : question;
    },
    Rti__getFutureFromFutureOr(universe, rti) {
      var future = rti._precomputed1;
      return future == null ? rti._precomputed1 = A._Universe__lookupInterfaceRti(universe, "Future", [rti._primary]) : future;
    },
    Rti__isUnionOfFunctionType(rti) {
      var kind = rti._kind;
      if (kind === 6 || kind === 7 || kind === 8)
        return A.Rti__isUnionOfFunctionType(rti._primary);
      return kind === 12 || kind === 13;
    },
    Rti__getCanonicalRecipe(rti) {
      return rti._canonicalRecipe;
    },
    findType(recipe) {
      return A._Universe_eval(init.typeUniverse, recipe, false);
    },
    _substitute(universe, rti, typeArguments, depth) {
      var baseType, substitutedBaseType, interfaceTypeArguments, substitutedInterfaceTypeArguments, base, substitutedBase, $arguments, substitutedArguments, returnType, substitutedReturnType, functionParameters, substitutedFunctionParameters, bounds, substitutedBounds, index, argument,
        kind = rti._kind;
      switch (kind) {
        case 5:
        case 1:
        case 2:
        case 3:
        case 4:
          return rti;
        case 6:
          baseType = rti._primary;
          substitutedBaseType = A._substitute(universe, baseType, typeArguments, depth);
          if (substitutedBaseType === baseType)
            return rti;
          return A._Universe__lookupStarRti(universe, substitutedBaseType, true);
        case 7:
          baseType = rti._primary;
          substitutedBaseType = A._substitute(universe, baseType, typeArguments, depth);
          if (substitutedBaseType === baseType)
            return rti;
          return A._Universe__lookupQuestionRti(universe, substitutedBaseType, true);
        case 8:
          baseType = rti._primary;
          substitutedBaseType = A._substitute(universe, baseType, typeArguments, depth);
          if (substitutedBaseType === baseType)
            return rti;
          return A._Universe__lookupFutureOrRti(universe, substitutedBaseType, true);
        case 9:
          interfaceTypeArguments = rti._rest;
          substitutedInterfaceTypeArguments = A._substituteArray(universe, interfaceTypeArguments, typeArguments, depth);
          if (substitutedInterfaceTypeArguments === interfaceTypeArguments)
            return rti;
          return A._Universe__lookupInterfaceRti(universe, rti._primary, substitutedInterfaceTypeArguments);
        case 10:
          base = rti._primary;
          substitutedBase = A._substitute(universe, base, typeArguments, depth);
          $arguments = rti._rest;
          substitutedArguments = A._substituteArray(universe, $arguments, typeArguments, depth);
          if (substitutedBase === base && substitutedArguments === $arguments)
            return rti;
          return A._Universe__lookupBindingRti(universe, substitutedBase, substitutedArguments);
        case 12:
          returnType = rti._primary;
          substitutedReturnType = A._substitute(universe, returnType, typeArguments, depth);
          functionParameters = rti._rest;
          substitutedFunctionParameters = A._substituteFunctionParameters(universe, functionParameters, typeArguments, depth);
          if (substitutedReturnType === returnType && substitutedFunctionParameters === functionParameters)
            return rti;
          return A._Universe__lookupFunctionRti(universe, substitutedReturnType, substitutedFunctionParameters);
        case 13:
          bounds = rti._rest;
          depth += bounds.length;
          substitutedBounds = A._substituteArray(universe, bounds, typeArguments, depth);
          base = rti._primary;
          substitutedBase = A._substitute(universe, base, typeArguments, depth);
          if (substitutedBounds === bounds && substitutedBase === base)
            return rti;
          return A._Universe__lookupGenericFunctionRti(universe, substitutedBase, substitutedBounds, true);
        case 14:
          index = rti._primary;
          if (index < depth)
            return rti;
          argument = typeArguments[index - depth];
          if (argument == null)
            return rti;
          return argument;
        default:
          throw A.wrapException(A.AssertionError$("Attempted to substitute unexpected RTI kind " + kind));
      }
    },
    _substituteArray(universe, rtiArray, typeArguments, depth) {
      var changed, i, rti, substitutedRti,
        $length = rtiArray.length,
        result = A._Utils_newArrayOrEmpty($length);
      for (changed = false, i = 0; i < $length; ++i) {
        rti = rtiArray[i];
        substitutedRti = A._substitute(universe, rti, typeArguments, depth);
        if (substitutedRti !== rti)
          changed = true;
        result[i] = substitutedRti;
      }
      return changed ? result : rtiArray;
    },
    _substituteNamed(universe, namedArray, typeArguments, depth) {
      var changed, i, t1, t2, rti, substitutedRti,
        $length = namedArray.length,
        result = A._Utils_newArrayOrEmpty($length);
      for (changed = false, i = 0; i < $length; i += 3) {
        t1 = namedArray[i];
        t2 = namedArray[i + 1];
        rti = namedArray[i + 2];
        substitutedRti = A._substitute(universe, rti, typeArguments, depth);
        if (substitutedRti !== rti)
          changed = true;
        result.splice(i, 3, t1, t2, substitutedRti);
      }
      return changed ? result : namedArray;
    },
    _substituteFunctionParameters(universe, functionParameters, typeArguments, depth) {
      var result,
        requiredPositional = functionParameters._requiredPositional,
        substitutedRequiredPositional = A._substituteArray(universe, requiredPositional, typeArguments, depth),
        optionalPositional = functionParameters._optionalPositional,
        substitutedOptionalPositional = A._substituteArray(universe, optionalPositional, typeArguments, depth),
        named = functionParameters._named,
        substitutedNamed = A._substituteNamed(universe, named, typeArguments, depth);
      if (substitutedRequiredPositional === requiredPositional && substitutedOptionalPositional === optionalPositional && substitutedNamed === named)
        return functionParameters;
      result = new A._FunctionParameters();
      result._requiredPositional = substitutedRequiredPositional;
      result._optionalPositional = substitutedOptionalPositional;
      result._named = substitutedNamed;
      return result;
    },
    _setArrayType(target, rti) {
      target[init.arrayRti] = rti;
      return target;
    },
    closureFunctionType(closure) {
      var t1,
        signature = closure.$signature;
      if (signature != null) {
        if (typeof signature == "number")
          return A.getTypeFromTypesTable(signature);
        t1 = closure.$signature();
        return t1;
      }
      return null;
    },
    instanceOrFunctionType(object, testRti) {
      var rti;
      if (A.Rti__isUnionOfFunctionType(testRti))
        if (object instanceof A.Closure) {
          rti = A.closureFunctionType(object);
          if (rti != null)
            return rti;
        }
      return A.instanceType(object);
    },
    instanceType(object) {
      if (object instanceof A.Object)
        return A._instanceType(object);
      if (Array.isArray(object))
        return A._arrayInstanceType(object);
      return A._instanceTypeFromConstructor(J.getInterceptor$(object));
    },
    _arrayInstanceType(object) {
      var rti = object[init.arrayRti],
        defaultRti = type$.JSArray_dynamic;
      if (rti == null)
        return defaultRti;
      if (rti.constructor !== defaultRti.constructor)
        return defaultRti;
      return rti;
    },
    _instanceType(object) {
      var rti = object.$ti;
      return rti != null ? rti : A._instanceTypeFromConstructor(object);
    },
    _instanceTypeFromConstructor(instance) {
      var $constructor = instance.constructor,
        probe = $constructor.$ccache;
      if (probe != null)
        return probe;
      return A._instanceTypeFromConstructorMiss(instance, $constructor);
    },
    _instanceTypeFromConstructorMiss(instance, $constructor) {
      var effectiveConstructor = instance instanceof A.Closure ? Object.getPrototypeOf(Object.getPrototypeOf(instance)).constructor : $constructor,
        rti = A._Universe_findErasedType(init.typeUniverse, effectiveConstructor.name);
      $constructor.$ccache = rti;
      return rti;
    },
    getTypeFromTypesTable(index) {
      var rti,
        table = init.types,
        type = table[index];
      if (typeof type == "string") {
        rti = A._Universe_eval(init.typeUniverse, type, false);
        table[index] = rti;
        return rti;
      }
      return type;
    },
    getRuntimeTypeOfDartObject(object) {
      return A.createRuntimeType(A._instanceType(object));
    },
    _structuralTypeOf(object) {
      var functionRti = object instanceof A.Closure ? A.closureFunctionType(object) : null;
      if (functionRti != null)
        return functionRti;
      if (type$.TrustedGetRuntimeType._is(object))
        return J.get$runtimeType$(object)._rti;
      if (Array.isArray(object))
        return A._arrayInstanceType(object);
      return A.instanceType(object);
    },
    createRuntimeType(rti) {
      var t1 = rti._cachedRuntimeType;
      return t1 == null ? rti._cachedRuntimeType = A._createRuntimeType(rti) : t1;
    },
    _createRuntimeType(rti) {
      var starErasedRti, t1,
        s = rti._canonicalRecipe,
        starErasedRecipe = s.replace(/\*/g, "");
      if (starErasedRecipe === s)
        return rti._cachedRuntimeType = new A._Type(rti);
      starErasedRti = A._Universe_eval(init.typeUniverse, starErasedRecipe, true);
      t1 = starErasedRti._cachedRuntimeType;
      return t1 == null ? starErasedRti._cachedRuntimeType = A._createRuntimeType(starErasedRti) : t1;
    },
    typeLiteral(recipe) {
      return A.createRuntimeType(A._Universe_eval(init.typeUniverse, recipe, false));
    },
    _installSpecializedIsTest(object) {
      var t1, unstarred, unstarredKind, isFn, $name, predicate, testRti = this;
      if (testRti === type$.Object)
        return A._finishIsFn(testRti, object, A._isObject);
      if (!A.isStrongTopType(testRti))
        if (!(testRti === type$.legacy_Object))
          t1 = false;
        else
          t1 = true;
      else
        t1 = true;
      if (t1)
        return A._finishIsFn(testRti, object, A._isTop);
      t1 = testRti._kind;
      if (t1 === 7)
        return A._finishIsFn(testRti, object, A._generalNullableIsTestImplementation);
      if (t1 === 1)
        return A._finishIsFn(testRti, object, A._isNever);
      unstarred = t1 === 6 ? testRti._primary : testRti;
      unstarredKind = unstarred._kind;
      if (unstarredKind === 8)
        return A._finishIsFn(testRti, object, A._isFutureOr);
      if (unstarred === type$.int)
        isFn = A._isInt;
      else if (unstarred === type$.double || unstarred === type$.num)
        isFn = A._isNum;
      else if (unstarred === type$.String)
        isFn = A._isString;
      else
        isFn = unstarred === type$.bool ? A._isBool : null;
      if (isFn != null)
        return A._finishIsFn(testRti, object, isFn);
      if (unstarredKind === 9) {
        $name = unstarred._primary;
        if (unstarred._rest.every(A.isTopType)) {
          testRti._specializedTestResource = "$is" + $name;
          if ($name === "List")
            return A._finishIsFn(testRti, object, A._isListTestViaProperty);
          return A._finishIsFn(testRti, object, A._isTestViaProperty);
        }
      } else if (unstarredKind === 11) {
        predicate = A.createRecordTypePredicate(unstarred._primary, unstarred._rest);
        return A._finishIsFn(testRti, object, predicate == null ? A._isNever : predicate);
      }
      return A._finishIsFn(testRti, object, A._generalIsTestImplementation);
    },
    _finishIsFn(testRti, object, isFn) {
      testRti._is = isFn;
      return testRti._is(object);
    },
    _installSpecializedAsCheck(object) {
      var t1, testRti = this,
        asFn = A._generalAsCheckImplementation;
      if (!A.isStrongTopType(testRti))
        if (!(testRti === type$.legacy_Object))
          t1 = false;
        else
          t1 = true;
      else
        t1 = true;
      if (t1)
        asFn = A._asTop;
      else if (testRti === type$.Object)
        asFn = A._asObject;
      else {
        t1 = A.isNullable(testRti);
        if (t1)
          asFn = A._generalNullableAsCheckImplementation;
      }
      testRti._as = asFn;
      return testRti._as(object);
    },
    _nullIs(testRti) {
      var t1,
        kind = testRti._kind;
      if (!A.isStrongTopType(testRti))
        if (!(testRti === type$.legacy_Object))
          if (!(testRti === type$.legacy_Never))
            if (kind !== 7)
              if (!(kind === 6 && A._nullIs(testRti._primary)))
                t1 = kind === 8 && A._nullIs(testRti._primary) || testRti === type$.Null || testRti === type$.JSNull;
              else
                t1 = true;
            else
              t1 = true;
          else
            t1 = true;
        else
          t1 = true;
      else
        t1 = true;
      return t1;
    },
    _generalIsTestImplementation(object) {
      var testRti = this;
      if (object == null)
        return A._nullIs(testRti);
      return A._isSubtype(init.typeUniverse, A.instanceOrFunctionType(object, testRti), null, testRti, null);
    },
    _generalNullableIsTestImplementation(object) {
      if (object == null)
        return true;
      return this._primary._is(object);
    },
    _isTestViaProperty(object) {
      var tag, testRti = this;
      if (object == null)
        return A._nullIs(testRti);
      tag = testRti._specializedTestResource;
      if (object instanceof A.Object)
        return !!object[tag];
      return !!J.getInterceptor$(object)[tag];
    },
    _isListTestViaProperty(object) {
      var tag, testRti = this;
      if (object == null)
        return A._nullIs(testRti);
      if (typeof object != "object")
        return false;
      if (Array.isArray(object))
        return true;
      tag = testRti._specializedTestResource;
      if (object instanceof A.Object)
        return !!object[tag];
      return !!J.getInterceptor$(object)[tag];
    },
    _generalAsCheckImplementation(object) {
      var t1, testRti = this;
      if (object == null) {
        t1 = A.isNullable(testRti);
        if (t1)
          return object;
      } else if (testRti._is(object))
        return object;
      A._failedAsCheck(object, testRti);
    },
    _generalNullableAsCheckImplementation(object) {
      var testRti = this;
      if (object == null)
        return object;
      else if (testRti._is(object))
        return object;
      A._failedAsCheck(object, testRti);
    },
    _failedAsCheck(object, testRti) {
      throw A.wrapException(A._TypeError$fromMessage(A._Error_compose(object, A._rtiToString(testRti, null))));
    },
    _Error_compose(object, checkedTypeDescription) {
      return A.Error_safeToString(object) + ": type '" + A._rtiToString(A._structuralTypeOf(object), null) + "' is not a subtype of type '" + checkedTypeDescription + "'";
    },
    _TypeError$fromMessage(message) {
      return new A._TypeError("TypeError: " + message);
    },
    _TypeError__TypeError$forType(object, type) {
      return new A._TypeError("TypeError: " + A._Error_compose(object, type));
    },
    _isFutureOr(object) {
      var testRti = this,
        unstarred = testRti._kind === 6 ? testRti._primary : testRti;
      return unstarred._primary._is(object) || A.Rti__getFutureFromFutureOr(init.typeUniverse, unstarred)._is(object);
    },
    _isObject(object) {
      return object != null;
    },
    _asObject(object) {
      if (object != null)
        return object;
      throw A.wrapException(A._TypeError__TypeError$forType(object, "Object"));
    },
    _isTop(object) {
      return true;
    },
    _asTop(object) {
      return object;
    },
    _isNever(object) {
      return false;
    },
    _isBool(object) {
      return true === object || false === object;
    },
    _asBool(object) {
      if (true === object)
        return true;
      if (false === object)
        return false;
      throw A.wrapException(A._TypeError__TypeError$forType(object, "bool"));
    },
    _asBoolS(object) {
      if (true === object)
        return true;
      if (false === object)
        return false;
      if (object == null)
        return object;
      throw A.wrapException(A._TypeError__TypeError$forType(object, "bool"));
    },
    _asBoolQ(object) {
      if (true === object)
        return true;
      if (false === object)
        return false;
      if (object == null)
        return object;
      throw A.wrapException(A._TypeError__TypeError$forType(object, "bool?"));
    },
    _asDouble(object) {
      if (typeof object == "number")
        return object;
      throw A.wrapException(A._TypeError__TypeError$forType(object, "double"));
    },
    _asDoubleS(object) {
      if (typeof object == "number")
        return object;
      if (object == null)
        return object;
      throw A.wrapException(A._TypeError__TypeError$forType(object, "double"));
    },
    _asDoubleQ(object) {
      if (typeof object == "number")
        return object;
      if (object == null)
        return object;
      throw A.wrapException(A._TypeError__TypeError$forType(object, "double?"));
    },
    _isInt(object) {
      return typeof object == "number" && Math.floor(object) === object;
    },
    _asInt(object) {
      if (typeof object == "number" && Math.floor(object) === object)
        return object;
      throw A.wrapException(A._TypeError__TypeError$forType(object, "int"));
    },
    _asIntS(object) {
      if (typeof object == "number" && Math.floor(object) === object)
        return object;
      if (object == null)
        return object;
      throw A.wrapException(A._TypeError__TypeError$forType(object, "int"));
    },
    _asIntQ(object) {
      if (typeof object == "number" && Math.floor(object) === object)
        return object;
      if (object == null)
        return object;
      throw A.wrapException(A._TypeError__TypeError$forType(object, "int?"));
    },
    _isNum(object) {
      return typeof object == "number";
    },
    _asNum(object) {
      if (typeof object == "number")
        return object;
      throw A.wrapException(A._TypeError__TypeError$forType(object, "num"));
    },
    _asNumS(object) {
      if (typeof object == "number")
        return object;
      if (object == null)
        return object;
      throw A.wrapException(A._TypeError__TypeError$forType(object, "num"));
    },
    _asNumQ(object) {
      if (typeof object == "number")
        return object;
      if (object == null)
        return object;
      throw A.wrapException(A._TypeError__TypeError$forType(object, "num?"));
    },
    _isString(object) {
      return typeof object == "string";
    },
    _asString(object) {
      if (typeof object == "string")
        return object;
      throw A.wrapException(A._TypeError__TypeError$forType(object, "String"));
    },
    _asStringS(object) {
      if (typeof object == "string")
        return object;
      if (object == null)
        return object;
      throw A.wrapException(A._TypeError__TypeError$forType(object, "String"));
    },
    _asStringQ(object) {
      if (typeof object == "string")
        return object;
      if (object == null)
        return object;
      throw A.wrapException(A._TypeError__TypeError$forType(object, "String?"));
    },
    _rtiArrayToString(array, genericContext) {
      var s, sep, i;
      for (s = "", sep = "", i = 0; i < array.length; ++i, sep = ", ")
        s += sep + A._rtiToString(array[i], genericContext);
      return s;
    },
    _recordRtiToString(recordType, genericContext) {
      var fieldCount, names, namesIndex, s, comma, i,
        partialShape = recordType._primary,
        fields = recordType._rest;
      if ("" === partialShape)
        return "(" + A._rtiArrayToString(fields, genericContext) + ")";
      fieldCount = fields.length;
      names = partialShape.split(",");
      namesIndex = names.length - fieldCount;
      for (s = "(", comma = "", i = 0; i < fieldCount; ++i, comma = ", ") {
        s += comma;
        if (namesIndex === 0)
          s += "{";
        s += A._rtiToString(fields[i], genericContext);
        if (namesIndex >= 0)
          s += " " + names[namesIndex];
        ++namesIndex;
      }
      return s + "})";
    },
    _functionRtiToString(functionType, genericContext, bounds) {
      var boundsLength, outerContextLength, offset, i, t1, t2, typeParametersText, typeSep, t3, t4, boundRti, kind, parameters, requiredPositional, requiredPositionalLength, optionalPositional, optionalPositionalLength, named, namedLength, returnTypeText, argumentsText, sep, _s2_ = ", ";
      if (bounds != null) {
        boundsLength = bounds.length;
        if (genericContext == null) {
          genericContext = A._setArrayType([], type$.JSArray_String);
          outerContextLength = null;
        } else
          outerContextLength = genericContext.length;
        offset = genericContext.length;
        for (i = boundsLength; i > 0; --i)
          B.JSArray_methods.add$1(genericContext, "T" + (offset + i));
        for (t1 = type$.nullable_Object, t2 = type$.legacy_Object, typeParametersText = "<", typeSep = "", i = 0; i < boundsLength; ++i, typeSep = _s2_) {
          t3 = genericContext.length;
          t4 = t3 - 1 - i;
          if (!(t4 >= 0))
            return A.ioore(genericContext, t4);
          typeParametersText = B.JSString_methods.$add(typeParametersText + typeSep, genericContext[t4]);
          boundRti = bounds[i];
          kind = boundRti._kind;
          if (!(kind === 2 || kind === 3 || kind === 4 || kind === 5 || boundRti === t1))
            if (!(boundRti === t2))
              t3 = false;
            else
              t3 = true;
          else
            t3 = true;
          if (!t3)
            typeParametersText += " extends " + A._rtiToString(boundRti, genericContext);
        }
        typeParametersText += ">";
      } else {
        typeParametersText = "";
        outerContextLength = null;
      }
      t1 = functionType._primary;
      parameters = functionType._rest;
      requiredPositional = parameters._requiredPositional;
      requiredPositionalLength = requiredPositional.length;
      optionalPositional = parameters._optionalPositional;
      optionalPositionalLength = optionalPositional.length;
      named = parameters._named;
      namedLength = named.length;
      returnTypeText = A._rtiToString(t1, genericContext);
      for (argumentsText = "", sep = "", i = 0; i < requiredPositionalLength; ++i, sep = _s2_)
        argumentsText += sep + A._rtiToString(requiredPositional[i], genericContext);
      if (optionalPositionalLength > 0) {
        argumentsText += sep + "[";
        for (sep = "", i = 0; i < optionalPositionalLength; ++i, sep = _s2_)
          argumentsText += sep + A._rtiToString(optionalPositional[i], genericContext);
        argumentsText += "]";
      }
      if (namedLength > 0) {
        argumentsText += sep + "{";
        for (sep = "", i = 0; i < namedLength; i += 3, sep = _s2_) {
          argumentsText += sep;
          if (named[i + 1])
            argumentsText += "required ";
          argumentsText += A._rtiToString(named[i + 2], genericContext) + " " + named[i];
        }
        argumentsText += "}";
      }
      if (outerContextLength != null) {
        genericContext.toString;
        genericContext.length = outerContextLength;
      }
      return typeParametersText + "(" + argumentsText + ") => " + returnTypeText;
    },
    _rtiToString(rti, genericContext) {
      var s, questionArgument, argumentKind, $name, $arguments, t1, t2,
        kind = rti._kind;
      if (kind === 5)
        return "erased";
      if (kind === 2)
        return "dynamic";
      if (kind === 3)
        return "void";
      if (kind === 1)
        return "Never";
      if (kind === 4)
        return "any";
      if (kind === 6) {
        s = A._rtiToString(rti._primary, genericContext);
        return s;
      }
      if (kind === 7) {
        questionArgument = rti._primary;
        s = A._rtiToString(questionArgument, genericContext);
        argumentKind = questionArgument._kind;
        return (argumentKind === 12 || argumentKind === 13 ? "(" + s + ")" : s) + "?";
      }
      if (kind === 8)
        return "FutureOr<" + A._rtiToString(rti._primary, genericContext) + ">";
      if (kind === 9) {
        $name = A._unminifyOrTag(rti._primary);
        $arguments = rti._rest;
        return $arguments.length > 0 ? $name + ("<" + A._rtiArrayToString($arguments, genericContext) + ">") : $name;
      }
      if (kind === 11)
        return A._recordRtiToString(rti, genericContext);
      if (kind === 12)
        return A._functionRtiToString(rti, genericContext, null);
      if (kind === 13)
        return A._functionRtiToString(rti._primary, genericContext, rti._rest);
      if (kind === 14) {
        t1 = rti._primary;
        t2 = genericContext.length;
        t1 = t2 - 1 - t1;
        if (!(t1 >= 0 && t1 < t2))
          return A.ioore(genericContext, t1);
        return genericContext[t1];
      }
      return "?";
    },
    _unminifyOrTag(rawClassName) {
      var preserved = init.mangledGlobalNames[rawClassName];
      if (preserved != null)
        return preserved;
      return rawClassName;
    },
    _Universe_findRule(universe, targetType) {
      var rule = universe.tR[targetType];
      for (; typeof rule == "string";)
        rule = universe.tR[rule];
      return rule;
    },
    _Universe_findErasedType(universe, cls) {
      var $length, erased, $arguments, i, $interface,
        t1 = universe.eT,
        probe = t1[cls];
      if (probe == null)
        return A._Universe_eval(universe, cls, false);
      else if (typeof probe == "number") {
        $length = probe;
        erased = A._Universe__lookupTerminalRti(universe, 5, "#");
        $arguments = A._Utils_newArrayOrEmpty($length);
        for (i = 0; i < $length; ++i)
          $arguments[i] = erased;
        $interface = A._Universe__lookupInterfaceRti(universe, cls, $arguments);
        t1[cls] = $interface;
        return $interface;
      } else
        return probe;
    },
    _Universe_addRules(universe, rules) {
      return A._Utils_objectAssign(universe.tR, rules);
    },
    _Universe_addErasedTypes(universe, types) {
      return A._Utils_objectAssign(universe.eT, types);
    },
    _Universe_eval(universe, recipe, normalize) {
      var rti,
        t1 = universe.eC,
        probe = t1.get(recipe);
      if (probe != null)
        return probe;
      rti = A._Parser_parse(A._Parser_create(universe, null, recipe, normalize));
      t1.set(recipe, rti);
      return rti;
    },
    _Universe_evalInEnvironment(universe, environment, recipe) {
      var probe, rti,
        cache = environment._evalCache;
      if (cache == null)
        cache = environment._evalCache = new Map();
      probe = cache.get(recipe);
      if (probe != null)
        return probe;
      rti = A._Parser_parse(A._Parser_create(universe, environment, recipe, true));
      cache.set(recipe, rti);
      return rti;
    },
    _Universe_bind(universe, environment, argumentsRti) {
      var argumentsRecipe, probe, rti,
        cache = environment._bindCache;
      if (cache == null)
        cache = environment._bindCache = new Map();
      argumentsRecipe = argumentsRti._canonicalRecipe;
      probe = cache.get(argumentsRecipe);
      if (probe != null)
        return probe;
      rti = A._Universe__lookupBindingRti(universe, environment, argumentsRti._kind === 10 ? argumentsRti._rest : [argumentsRti]);
      cache.set(argumentsRecipe, rti);
      return rti;
    },
    _Universe__installTypeTests(universe, rti) {
      rti._as = A._installSpecializedAsCheck;
      rti._is = A._installSpecializedIsTest;
      return rti;
    },
    _Universe__lookupTerminalRti(universe, kind, key) {
      var rti, t1,
        probe = universe.eC.get(key);
      if (probe != null)
        return probe;
      rti = new A.Rti(null, null);
      rti._kind = kind;
      rti._canonicalRecipe = key;
      t1 = A._Universe__installTypeTests(universe, rti);
      universe.eC.set(key, t1);
      return t1;
    },
    _Universe__lookupStarRti(universe, baseType, normalize) {
      var t1,
        key = baseType._canonicalRecipe + "*",
        probe = universe.eC.get(key);
      if (probe != null)
        return probe;
      t1 = A._Universe__createStarRti(universe, baseType, key, normalize);
      universe.eC.set(key, t1);
      return t1;
    },
    _Universe__createStarRti(universe, baseType, key, normalize) {
      var baseKind, t1, rti;
      if (normalize) {
        baseKind = baseType._kind;
        if (!A.isStrongTopType(baseType))
          t1 = baseType === type$.Null || baseType === type$.JSNull || baseKind === 7 || baseKind === 6;
        else
          t1 = true;
        if (t1)
          return baseType;
      }
      rti = new A.Rti(null, null);
      rti._kind = 6;
      rti._primary = baseType;
      rti._canonicalRecipe = key;
      return A._Universe__installTypeTests(universe, rti);
    },
    _Universe__lookupQuestionRti(universe, baseType, normalize) {
      var t1,
        key = baseType._canonicalRecipe + "?",
        probe = universe.eC.get(key);
      if (probe != null)
        return probe;
      t1 = A._Universe__createQuestionRti(universe, baseType, key, normalize);
      universe.eC.set(key, t1);
      return t1;
    },
    _Universe__createQuestionRti(universe, baseType, key, normalize) {
      var baseKind, t1, starArgument, rti;
      if (normalize) {
        baseKind = baseType._kind;
        if (!A.isStrongTopType(baseType))
          if (!(baseType === type$.Null || baseType === type$.JSNull))
            if (baseKind !== 7)
              t1 = baseKind === 8 && A.isNullable(baseType._primary);
            else
              t1 = true;
          else
            t1 = true;
        else
          t1 = true;
        if (t1)
          return baseType;
        else if (baseKind === 1 || baseType === type$.legacy_Never)
          return type$.Null;
        else if (baseKind === 6) {
          starArgument = baseType._primary;
          if (starArgument._kind === 8 && A.isNullable(starArgument._primary))
            return starArgument;
          else
            return A.Rti__getQuestionFromStar(universe, baseType);
        }
      }
      rti = new A.Rti(null, null);
      rti._kind = 7;
      rti._primary = baseType;
      rti._canonicalRecipe = key;
      return A._Universe__installTypeTests(universe, rti);
    },
    _Universe__lookupFutureOrRti(universe, baseType, normalize) {
      var t1,
        key = baseType._canonicalRecipe + "/",
        probe = universe.eC.get(key);
      if (probe != null)
        return probe;
      t1 = A._Universe__createFutureOrRti(universe, baseType, key, normalize);
      universe.eC.set(key, t1);
      return t1;
    },
    _Universe__createFutureOrRti(universe, baseType, key, normalize) {
      var t1, t2, rti;
      if (normalize) {
        t1 = baseType._kind;
        if (!A.isStrongTopType(baseType))
          if (!(baseType === type$.legacy_Object))
            t2 = false;
          else
            t2 = true;
        else
          t2 = true;
        if (t2 || baseType === type$.Object)
          return baseType;
        else if (t1 === 1)
          return A._Universe__lookupInterfaceRti(universe, "Future", [baseType]);
        else if (baseType === type$.Null || baseType === type$.JSNull)
          return type$.nullable_Future_Null;
      }
      rti = new A.Rti(null, null);
      rti._kind = 8;
      rti._primary = baseType;
      rti._canonicalRecipe = key;
      return A._Universe__installTypeTests(universe, rti);
    },
    _Universe__lookupGenericFunctionParameterRti(universe, index) {
      var rti, t1,
        key = "" + index + "^",
        probe = universe.eC.get(key);
      if (probe != null)
        return probe;
      rti = new A.Rti(null, null);
      rti._kind = 14;
      rti._primary = index;
      rti._canonicalRecipe = key;
      t1 = A._Universe__installTypeTests(universe, rti);
      universe.eC.set(key, t1);
      return t1;
    },
    _Universe__canonicalRecipeJoin($arguments) {
      var s, sep, i,
        $length = $arguments.length;
      for (s = "", sep = "", i = 0; i < $length; ++i, sep = ",")
        s += sep + $arguments[i]._canonicalRecipe;
      return s;
    },
    _Universe__canonicalRecipeJoinNamed($arguments) {
      var s, sep, i, t1, nameSep,
        $length = $arguments.length;
      for (s = "", sep = "", i = 0; i < $length; i += 3, sep = ",") {
        t1 = $arguments[i];
        nameSep = $arguments[i + 1] ? "!" : ":";
        s += sep + t1 + nameSep + $arguments[i + 2]._canonicalRecipe;
      }
      return s;
    },
    _Universe__lookupInterfaceRti(universe, $name, $arguments) {
      var probe, rti, t1,
        s = $name;
      if ($arguments.length > 0)
        s += "<" + A._Universe__canonicalRecipeJoin($arguments) + ">";
      probe = universe.eC.get(s);
      if (probe != null)
        return probe;
      rti = new A.Rti(null, null);
      rti._kind = 9;
      rti._primary = $name;
      rti._rest = $arguments;
      if ($arguments.length > 0)
        rti._precomputed1 = $arguments[0];
      rti._canonicalRecipe = s;
      t1 = A._Universe__installTypeTests(universe, rti);
      universe.eC.set(s, t1);
      return t1;
    },
    _Universe__lookupBindingRti(universe, base, $arguments) {
      var newBase, newArguments, key, probe, rti, t1;
      if (base._kind === 10) {
        newBase = base._primary;
        newArguments = base._rest.concat($arguments);
      } else {
        newArguments = $arguments;
        newBase = base;
      }
      key = newBase._canonicalRecipe + (";<" + A._Universe__canonicalRecipeJoin(newArguments) + ">");
      probe = universe.eC.get(key);
      if (probe != null)
        return probe;
      rti = new A.Rti(null, null);
      rti._kind = 10;
      rti._primary = newBase;
      rti._rest = newArguments;
      rti._canonicalRecipe = key;
      t1 = A._Universe__installTypeTests(universe, rti);
      universe.eC.set(key, t1);
      return t1;
    },
    _Universe__lookupRecordRti(universe, partialShapeTag, fields) {
      var rti, t1,
        key = "+" + (partialShapeTag + "(" + A._Universe__canonicalRecipeJoin(fields) + ")"),
        probe = universe.eC.get(key);
      if (probe != null)
        return probe;
      rti = new A.Rti(null, null);
      rti._kind = 11;
      rti._primary = partialShapeTag;
      rti._rest = fields;
      rti._canonicalRecipe = key;
      t1 = A._Universe__installTypeTests(universe, rti);
      universe.eC.set(key, t1);
      return t1;
    },
    _Universe__lookupFunctionRti(universe, returnType, parameters) {
      var sep, key, probe, rti, t1,
        s = returnType._canonicalRecipe,
        requiredPositional = parameters._requiredPositional,
        requiredPositionalLength = requiredPositional.length,
        optionalPositional = parameters._optionalPositional,
        optionalPositionalLength = optionalPositional.length,
        named = parameters._named,
        namedLength = named.length,
        recipe = "(" + A._Universe__canonicalRecipeJoin(requiredPositional);
      if (optionalPositionalLength > 0) {
        sep = requiredPositionalLength > 0 ? "," : "";
        recipe += sep + "[" + A._Universe__canonicalRecipeJoin(optionalPositional) + "]";
      }
      if (namedLength > 0) {
        sep = requiredPositionalLength > 0 ? "," : "";
        recipe += sep + "{" + A._Universe__canonicalRecipeJoinNamed(named) + "}";
      }
      key = s + (recipe + ")");
      probe = universe.eC.get(key);
      if (probe != null)
        return probe;
      rti = new A.Rti(null, null);
      rti._kind = 12;
      rti._primary = returnType;
      rti._rest = parameters;
      rti._canonicalRecipe = key;
      t1 = A._Universe__installTypeTests(universe, rti);
      universe.eC.set(key, t1);
      return t1;
    },
    _Universe__lookupGenericFunctionRti(universe, baseFunctionType, bounds, normalize) {
      var t1,
        key = baseFunctionType._canonicalRecipe + ("<" + A._Universe__canonicalRecipeJoin(bounds) + ">"),
        probe = universe.eC.get(key);
      if (probe != null)
        return probe;
      t1 = A._Universe__createGenericFunctionRti(universe, baseFunctionType, bounds, key, normalize);
      universe.eC.set(key, t1);
      return t1;
    },
    _Universe__createGenericFunctionRti(universe, baseFunctionType, bounds, key, normalize) {
      var $length, typeArguments, count, i, bound, substitutedBase, substitutedBounds, rti;
      if (normalize) {
        $length = bounds.length;
        typeArguments = A._Utils_newArrayOrEmpty($length);
        for (count = 0, i = 0; i < $length; ++i) {
          bound = bounds[i];
          if (bound._kind === 1) {
            typeArguments[i] = bound;
            ++count;
          }
        }
        if (count > 0) {
          substitutedBase = A._substitute(universe, baseFunctionType, typeArguments, 0);
          substitutedBounds = A._substituteArray(universe, bounds, typeArguments, 0);
          return A._Universe__lookupGenericFunctionRti(universe, substitutedBase, substitutedBounds, bounds !== substitutedBounds);
        }
      }
      rti = new A.Rti(null, null);
      rti._kind = 13;
      rti._primary = baseFunctionType;
      rti._rest = bounds;
      rti._canonicalRecipe = key;
      return A._Universe__installTypeTests(universe, rti);
    },
    _Parser_create(universe, environment, recipe, normalize) {
      return {u: universe, e: environment, r: recipe, s: [], p: 0, n: normalize};
    },
    _Parser_parse(parser) {
      var t2, i, ch, t3, array, end, item,
        source = parser.r,
        t1 = parser.s;
      for (t2 = source.length, i = 0; i < t2;) {
        ch = source.charCodeAt(i);
        if (ch >= 48 && ch <= 57)
          i = A._Parser_handleDigit(i + 1, ch, source, t1);
        else if ((((ch | 32) >>> 0) - 97 & 65535) < 26 || ch === 95 || ch === 36 || ch === 124)
          i = A._Parser_handleIdentifier(parser, i, source, t1, false);
        else if (ch === 46)
          i = A._Parser_handleIdentifier(parser, i, source, t1, true);
        else {
          ++i;
          switch (ch) {
            case 44:
              break;
            case 58:
              t1.push(false);
              break;
            case 33:
              t1.push(true);
              break;
            case 59:
              t1.push(A._Parser_toType(parser.u, parser.e, t1.pop()));
              break;
            case 94:
              t1.push(A._Universe__lookupGenericFunctionParameterRti(parser.u, t1.pop()));
              break;
            case 35:
              t1.push(A._Universe__lookupTerminalRti(parser.u, 5, "#"));
              break;
            case 64:
              t1.push(A._Universe__lookupTerminalRti(parser.u, 2, "@"));
              break;
            case 126:
              t1.push(A._Universe__lookupTerminalRti(parser.u, 3, "~"));
              break;
            case 60:
              t1.push(parser.p);
              parser.p = t1.length;
              break;
            case 62:
              A._Parser_handleTypeArguments(parser, t1);
              break;
            case 38:
              A._Parser_handleExtendedOperations(parser, t1);
              break;
            case 42:
              t3 = parser.u;
              t1.push(A._Universe__lookupStarRti(t3, A._Parser_toType(t3, parser.e, t1.pop()), parser.n));
              break;
            case 63:
              t3 = parser.u;
              t1.push(A._Universe__lookupQuestionRti(t3, A._Parser_toType(t3, parser.e, t1.pop()), parser.n));
              break;
            case 47:
              t3 = parser.u;
              t1.push(A._Universe__lookupFutureOrRti(t3, A._Parser_toType(t3, parser.e, t1.pop()), parser.n));
              break;
            case 40:
              t1.push(-3);
              t1.push(parser.p);
              parser.p = t1.length;
              break;
            case 41:
              A._Parser_handleArguments(parser, t1);
              break;
            case 91:
              t1.push(parser.p);
              parser.p = t1.length;
              break;
            case 93:
              array = t1.splice(parser.p);
              A._Parser_toTypes(parser.u, parser.e, array);
              parser.p = t1.pop();
              t1.push(array);
              t1.push(-1);
              break;
            case 123:
              t1.push(parser.p);
              parser.p = t1.length;
              break;
            case 125:
              array = t1.splice(parser.p);
              A._Parser_toTypesNamed(parser.u, parser.e, array);
              parser.p = t1.pop();
              t1.push(array);
              t1.push(-2);
              break;
            case 43:
              end = source.indexOf("(", i);
              t1.push(source.substring(i, end));
              t1.push(-4);
              t1.push(parser.p);
              parser.p = t1.length;
              i = end + 1;
              break;
            default:
              throw "Bad character " + ch;
          }
        }
      }
      item = t1.pop();
      return A._Parser_toType(parser.u, parser.e, item);
    },
    _Parser_handleDigit(i, digit, source, stack) {
      var t1, ch,
        value = digit - 48;
      for (t1 = source.length; i < t1; ++i) {
        ch = source.charCodeAt(i);
        if (!(ch >= 48 && ch <= 57))
          break;
        value = value * 10 + (ch - 48);
      }
      stack.push(value);
      return i;
    },
    _Parser_handleIdentifier(parser, start, source, stack, hasPeriod) {
      var t1, ch, t2, string, environment, recipe,
        i = start + 1;
      for (t1 = source.length; i < t1; ++i) {
        ch = source.charCodeAt(i);
        if (ch === 46) {
          if (hasPeriod)
            break;
          hasPeriod = true;
        } else {
          if (!((((ch | 32) >>> 0) - 97 & 65535) < 26 || ch === 95 || ch === 36 || ch === 124))
            t2 = ch >= 48 && ch <= 57;
          else
            t2 = true;
          if (!t2)
            break;
        }
      }
      string = source.substring(start, i);
      if (hasPeriod) {
        t1 = parser.u;
        environment = parser.e;
        if (environment._kind === 10)
          environment = environment._primary;
        recipe = A._Universe_findRule(t1, environment._primary)[string];
        if (recipe == null)
          A.throwExpression('No "' + string + '" in "' + A.Rti__getCanonicalRecipe(environment) + '"');
        stack.push(A._Universe_evalInEnvironment(t1, environment, recipe));
      } else
        stack.push(string);
      return i;
    },
    _Parser_handleTypeArguments(parser, stack) {
      var base,
        t1 = parser.u,
        $arguments = A._Parser_collectArray(parser, stack),
        head = stack.pop();
      if (typeof head == "string")
        stack.push(A._Universe__lookupInterfaceRti(t1, head, $arguments));
      else {
        base = A._Parser_toType(t1, parser.e, head);
        switch (base._kind) {
          case 12:
            stack.push(A._Universe__lookupGenericFunctionRti(t1, base, $arguments, parser.n));
            break;
          default:
            stack.push(A._Universe__lookupBindingRti(t1, base, $arguments));
            break;
        }
      }
    },
    _Parser_handleArguments(parser, stack) {
      var optionalPositional, named, requiredPositional, returnType, parameters, _null = null,
        t1 = parser.u,
        head = stack.pop();
      if (typeof head == "number")
        switch (head) {
          case -1:
            optionalPositional = stack.pop();
            named = _null;
            break;
          case -2:
            named = stack.pop();
            optionalPositional = _null;
            break;
          default:
            stack.push(head);
            named = _null;
            optionalPositional = named;
            break;
        }
      else {
        stack.push(head);
        named = _null;
        optionalPositional = named;
      }
      requiredPositional = A._Parser_collectArray(parser, stack);
      head = stack.pop();
      switch (head) {
        case -3:
          head = stack.pop();
          if (optionalPositional == null)
            optionalPositional = t1.sEA;
          if (named == null)
            named = t1.sEA;
          returnType = A._Parser_toType(t1, parser.e, head);
          parameters = new A._FunctionParameters();
          parameters._requiredPositional = requiredPositional;
          parameters._optionalPositional = optionalPositional;
          parameters._named = named;
          stack.push(A._Universe__lookupFunctionRti(t1, returnType, parameters));
          return;
        case -4:
          stack.push(A._Universe__lookupRecordRti(t1, stack.pop(), requiredPositional));
          return;
        default:
          throw A.wrapException(A.AssertionError$("Unexpected state under `()`: " + A.S(head)));
      }
    },
    _Parser_handleExtendedOperations(parser, stack) {
      var $top = stack.pop();
      if (0 === $top) {
        stack.push(A._Universe__lookupTerminalRti(parser.u, 1, "0&"));
        return;
      }
      if (1 === $top) {
        stack.push(A._Universe__lookupTerminalRti(parser.u, 4, "1&"));
        return;
      }
      throw A.wrapException(A.AssertionError$("Unexpected extended operation " + A.S($top)));
    },
    _Parser_collectArray(parser, stack) {
      var array = stack.splice(parser.p);
      A._Parser_toTypes(parser.u, parser.e, array);
      parser.p = stack.pop();
      return array;
    },
    _Parser_toType(universe, environment, item) {
      if (typeof item == "string")
        return A._Universe__lookupInterfaceRti(universe, item, universe.sEA);
      else if (typeof item == "number") {
        environment.toString;
        return A._Parser_indexToType(universe, environment, item);
      } else
        return item;
    },
    _Parser_toTypes(universe, environment, items) {
      var i,
        $length = items.length;
      for (i = 0; i < $length; ++i)
        items[i] = A._Parser_toType(universe, environment, items[i]);
    },
    _Parser_toTypesNamed(universe, environment, items) {
      var i,
        $length = items.length;
      for (i = 2; i < $length; i += 3)
        items[i] = A._Parser_toType(universe, environment, items[i]);
    },
    _Parser_indexToType(universe, environment, index) {
      var typeArguments, len,
        kind = environment._kind;
      if (kind === 10) {
        if (index === 0)
          return environment._primary;
        typeArguments = environment._rest;
        len = typeArguments.length;
        if (index <= len)
          return typeArguments[index - 1];
        index -= len;
        environment = environment._primary;
        kind = environment._kind;
      } else if (index === 0)
        return environment;
      if (kind !== 9)
        throw A.wrapException(A.AssertionError$("Indexed base must be an interface type"));
      typeArguments = environment._rest;
      if (index <= typeArguments.length)
        return typeArguments[index - 1];
      throw A.wrapException(A.AssertionError$("Bad index " + index + " for " + environment.toString$0(0)));
    },
    _isSubtype(universe, s, sEnv, t, tEnv) {
      var t1, sKind, leftTypeVariable, tKind, t2, sBounds, tBounds, sLength, i, sBound, tBound;
      if (s === t)
        return true;
      if (!A.isStrongTopType(t))
        if (!(t === type$.legacy_Object))
          t1 = false;
        else
          t1 = true;
      else
        t1 = true;
      if (t1)
        return true;
      sKind = s._kind;
      if (sKind === 4)
        return true;
      if (A.isStrongTopType(s))
        return false;
      if (s._kind !== 1)
        t1 = false;
      else
        t1 = true;
      if (t1)
        return true;
      leftTypeVariable = sKind === 14;
      if (leftTypeVariable)
        if (A._isSubtype(universe, sEnv[s._primary], sEnv, t, tEnv))
          return true;
      tKind = t._kind;
      t1 = s === type$.Null || s === type$.JSNull;
      if (t1) {
        if (tKind === 8)
          return A._isSubtype(universe, s, sEnv, t._primary, tEnv);
        return t === type$.Null || t === type$.JSNull || tKind === 7 || tKind === 6;
      }
      if (t === type$.Object) {
        if (sKind === 8)
          return A._isSubtype(universe, s._primary, sEnv, t, tEnv);
        if (sKind === 6)
          return A._isSubtype(universe, s._primary, sEnv, t, tEnv);
        return sKind !== 7;
      }
      if (sKind === 6)
        return A._isSubtype(universe, s._primary, sEnv, t, tEnv);
      if (tKind === 6) {
        t1 = A.Rti__getQuestionFromStar(universe, t);
        return A._isSubtype(universe, s, sEnv, t1, tEnv);
      }
      if (sKind === 8) {
        if (!A._isSubtype(universe, s._primary, sEnv, t, tEnv))
          return false;
        return A._isSubtype(universe, A.Rti__getFutureFromFutureOr(universe, s), sEnv, t, tEnv);
      }
      if (sKind === 7) {
        t1 = A._isSubtype(universe, type$.Null, sEnv, t, tEnv);
        return t1 && A._isSubtype(universe, s._primary, sEnv, t, tEnv);
      }
      if (tKind === 8) {
        if (A._isSubtype(universe, s, sEnv, t._primary, tEnv))
          return true;
        return A._isSubtype(universe, s, sEnv, A.Rti__getFutureFromFutureOr(universe, t), tEnv);
      }
      if (tKind === 7) {
        t1 = A._isSubtype(universe, s, sEnv, type$.Null, tEnv);
        return t1 || A._isSubtype(universe, s, sEnv, t._primary, tEnv);
      }
      if (leftTypeVariable)
        return false;
      t1 = sKind !== 12;
      if ((!t1 || sKind === 13) && t === type$.Function)
        return true;
      t2 = sKind === 11;
      if (t2 && t === type$.Record)
        return true;
      if (tKind === 13) {
        if (s === type$.JavaScriptFunction)
          return true;
        if (sKind !== 13)
          return false;
        sBounds = s._rest;
        tBounds = t._rest;
        sLength = sBounds.length;
        if (sLength !== tBounds.length)
          return false;
        sEnv = sEnv == null ? sBounds : sBounds.concat(sEnv);
        tEnv = tEnv == null ? tBounds : tBounds.concat(tEnv);
        for (i = 0; i < sLength; ++i) {
          sBound = sBounds[i];
          tBound = tBounds[i];
          if (!A._isSubtype(universe, sBound, sEnv, tBound, tEnv) || !A._isSubtype(universe, tBound, tEnv, sBound, sEnv))
            return false;
        }
        return A._isFunctionSubtype(universe, s._primary, sEnv, t._primary, tEnv);
      }
      if (tKind === 12) {
        if (s === type$.JavaScriptFunction)
          return true;
        if (t1)
          return false;
        return A._isFunctionSubtype(universe, s, sEnv, t, tEnv);
      }
      if (sKind === 9) {
        if (tKind !== 9)
          return false;
        return A._isInterfaceSubtype(universe, s, sEnv, t, tEnv);
      }
      if (t2 && tKind === 11)
        return A._isRecordSubtype(universe, s, sEnv, t, tEnv);
      return false;
    },
    _isFunctionSubtype(universe, s, sEnv, t, tEnv) {
      var sParameters, tParameters, sRequiredPositional, tRequiredPositional, sRequiredPositionalLength, tRequiredPositionalLength, requiredPositionalDelta, sOptionalPositional, tOptionalPositional, sOptionalPositionalLength, tOptionalPositionalLength, i, t1, sNamed, tNamed, sNamedLength, tNamedLength, sIndex, tIndex, tName, sName, sIsRequired;
      if (!A._isSubtype(universe, s._primary, sEnv, t._primary, tEnv))
        return false;
      sParameters = s._rest;
      tParameters = t._rest;
      sRequiredPositional = sParameters._requiredPositional;
      tRequiredPositional = tParameters._requiredPositional;
      sRequiredPositionalLength = sRequiredPositional.length;
      tRequiredPositionalLength = tRequiredPositional.length;
      if (sRequiredPositionalLength > tRequiredPositionalLength)
        return false;
      requiredPositionalDelta = tRequiredPositionalLength - sRequiredPositionalLength;
      sOptionalPositional = sParameters._optionalPositional;
      tOptionalPositional = tParameters._optionalPositional;
      sOptionalPositionalLength = sOptionalPositional.length;
      tOptionalPositionalLength = tOptionalPositional.length;
      if (sRequiredPositionalLength + sOptionalPositionalLength < tRequiredPositionalLength + tOptionalPositionalLength)
        return false;
      for (i = 0; i < sRequiredPositionalLength; ++i) {
        t1 = sRequiredPositional[i];
        if (!A._isSubtype(universe, tRequiredPositional[i], tEnv, t1, sEnv))
          return false;
      }
      for (i = 0; i < requiredPositionalDelta; ++i) {
        t1 = sOptionalPositional[i];
        if (!A._isSubtype(universe, tRequiredPositional[sRequiredPositionalLength + i], tEnv, t1, sEnv))
          return false;
      }
      for (i = 0; i < tOptionalPositionalLength; ++i) {
        t1 = sOptionalPositional[requiredPositionalDelta + i];
        if (!A._isSubtype(universe, tOptionalPositional[i], tEnv, t1, sEnv))
          return false;
      }
      sNamed = sParameters._named;
      tNamed = tParameters._named;
      sNamedLength = sNamed.length;
      tNamedLength = tNamed.length;
      for (sIndex = 0, tIndex = 0; tIndex < tNamedLength; tIndex += 3) {
        tName = tNamed[tIndex];
        for (; true;) {
          if (sIndex >= sNamedLength)
            return false;
          sName = sNamed[sIndex];
          sIndex += 3;
          if (tName < sName)
            return false;
          sIsRequired = sNamed[sIndex - 2];
          if (sName < tName) {
            if (sIsRequired)
              return false;
            continue;
          }
          t1 = tNamed[tIndex + 1];
          if (sIsRequired && !t1)
            return false;
          t1 = sNamed[sIndex - 1];
          if (!A._isSubtype(universe, tNamed[tIndex + 2], tEnv, t1, sEnv))
            return false;
          break;
        }
      }
      for (; sIndex < sNamedLength;) {
        if (sNamed[sIndex + 1])
          return false;
        sIndex += 3;
      }
      return true;
    },
    _isInterfaceSubtype(universe, s, sEnv, t, tEnv) {
      var rule, recipes, $length, supertypeArgs, i, t1, t2,
        sName = s._primary,
        tName = t._primary;
      for (; sName !== tName;) {
        rule = universe.tR[sName];
        if (rule == null)
          return false;
        if (typeof rule == "string") {
          sName = rule;
          continue;
        }
        recipes = rule[tName];
        if (recipes == null)
          return false;
        $length = recipes.length;
        supertypeArgs = $length > 0 ? new Array($length) : init.typeUniverse.sEA;
        for (i = 0; i < $length; ++i)
          supertypeArgs[i] = A._Universe_evalInEnvironment(universe, s, recipes[i]);
        return A._areArgumentsSubtypes(universe, supertypeArgs, null, sEnv, t._rest, tEnv);
      }
      t1 = s._rest;
      t2 = t._rest;
      return A._areArgumentsSubtypes(universe, t1, null, sEnv, t2, tEnv);
    },
    _areArgumentsSubtypes(universe, sArgs, sVariances, sEnv, tArgs, tEnv) {
      var i, t1, t2,
        $length = sArgs.length;
      for (i = 0; i < $length; ++i) {
        t1 = sArgs[i];
        t2 = tArgs[i];
        if (!A._isSubtype(universe, t1, sEnv, t2, tEnv))
          return false;
      }
      return true;
    },
    _isRecordSubtype(universe, s, sEnv, t, tEnv) {
      var i,
        sFields = s._rest,
        tFields = t._rest,
        sCount = sFields.length;
      if (sCount !== tFields.length)
        return false;
      if (s._primary !== t._primary)
        return false;
      for (i = 0; i < sCount; ++i)
        if (!A._isSubtype(universe, sFields[i], sEnv, tFields[i], tEnv))
          return false;
      return true;
    },
    isNullable(t) {
      var t1,
        kind = t._kind;
      if (!(t === type$.Null || t === type$.JSNull))
        if (!A.isStrongTopType(t))
          if (kind !== 7)
            if (!(kind === 6 && A.isNullable(t._primary)))
              t1 = kind === 8 && A.isNullable(t._primary);
            else
              t1 = true;
          else
            t1 = true;
        else
          t1 = true;
      else
        t1 = true;
      return t1;
    },
    isTopType(t) {
      var t1;
      if (!A.isStrongTopType(t))
        if (!(t === type$.legacy_Object))
          t1 = false;
        else
          t1 = true;
      else
        t1 = true;
      return t1;
    },
    isStrongTopType(t) {
      var kind = t._kind;
      return kind === 2 || kind === 3 || kind === 4 || kind === 5 || t === type$.nullable_Object;
    },
    _Utils_objectAssign(o, other) {
      var i, key,
        keys = Object.keys(other),
        $length = keys.length;
      for (i = 0; i < $length; ++i) {
        key = keys[i];
        o[key] = other[key];
      }
    },
    _Utils_newArrayOrEmpty($length) {
      return $length > 0 ? new Array($length) : init.typeUniverse.sEA;
    },
    Rti: function Rti(t0, t1) {
      var _ = this;
      _._as = t0;
      _._is = t1;
      _._cachedRuntimeType = _._specializedTestResource = _._precomputed1 = null;
      _._kind = 0;
      _._canonicalRecipe = _._bindCache = _._evalCache = _._rest = _._primary = null;
    },
    _FunctionParameters: function _FunctionParameters() {
      this._named = this._optionalPositional = this._requiredPositional = null;
    },
    _Type: function _Type(t0) {
      this._rti = t0;
    },
    _Error: function _Error() {
    },
    _TypeError: function _TypeError(t0) {
      this._message = t0;
    },
    _AsyncRun__initializeScheduleImmediate() {
      var div, span, t1 = {};
      if (self.scheduleImmediate != null)
        return A.async__AsyncRun__scheduleImmediateJsOverride$closure();
      if (self.MutationObserver != null && self.document != null) {
        div = self.document.createElement("div");
        span = self.document.createElement("span");
        t1.storedCallback = null;
        new self.MutationObserver(A.convertDartClosureToJS(new A._AsyncRun__initializeScheduleImmediate_internalCallback(t1), 1)).observe(div, {childList: true});
        return new A._AsyncRun__initializeScheduleImmediate_closure(t1, div, span);
      } else if (self.setImmediate != null)
        return A.async__AsyncRun__scheduleImmediateWithSetImmediate$closure();
      return A.async__AsyncRun__scheduleImmediateWithTimer$closure();
    },
    _AsyncRun__scheduleImmediateJsOverride(callback) {
      self.scheduleImmediate(A.convertDartClosureToJS(new A._AsyncRun__scheduleImmediateJsOverride_internalCallback(type$.void_Function._as(callback)), 0));
    },
    _AsyncRun__scheduleImmediateWithSetImmediate(callback) {
      self.setImmediate(A.convertDartClosureToJS(new A._AsyncRun__scheduleImmediateWithSetImmediate_internalCallback(type$.void_Function._as(callback)), 0));
    },
    _AsyncRun__scheduleImmediateWithTimer(callback) {
      type$.void_Function._as(callback);
      A._TimerImpl$(0, callback);
    },
    _TimerImpl$(milliseconds, callback) {
      var t1 = new A._TimerImpl();
      t1._TimerImpl$2(milliseconds, callback);
      return t1;
    },
    _makeAsyncAwaitCompleter($T) {
      return new A._AsyncAwaitCompleter(new A._Future($.Zone__current, $T._eval$1("_Future<0>")), $T._eval$1("_AsyncAwaitCompleter<0>"));
    },
    _asyncStartSync(bodyFunction, completer) {
      bodyFunction.call$2(0, null);
      completer.isSync = true;
      return completer._future;
    },
    _asyncAwait(object, bodyFunction) {
      A._awaitOnObject(object, bodyFunction);
    },
    _asyncReturn(object, completer) {
      completer.complete$1(object);
    },
    _asyncRethrow(object, completer) {
      completer.completeError$2(A.unwrapException(object), A.getTraceFromException(object));
    },
    _awaitOnObject(object, bodyFunction) {
      var t1, future,
        thenCallback = new A._awaitOnObject_closure(bodyFunction),
        errorCallback = new A._awaitOnObject_closure0(bodyFunction);
      if (object instanceof A._Future)
        object._thenAwait$1$2(thenCallback, errorCallback, type$.dynamic);
      else {
        t1 = type$.dynamic;
        if (object instanceof A._Future)
          object.then$1$2$onError(thenCallback, errorCallback, t1);
        else {
          future = new A._Future($.Zone__current, type$._Future_dynamic);
          future._state = 8;
          future._resultOrListeners = object;
          future._thenAwait$1$2(thenCallback, errorCallback, t1);
        }
      }
    },
    _wrapJsFunctionForAsync($function) {
      var $protected = function(fn, ERROR) {
        return function(errorCode, result) {
          while (true)
            try {
              fn(errorCode, result);
              break;
            } catch (error) {
              result = error;
              errorCode = ERROR;
            }
        };
      }($function, 1);
      return $.Zone__current.registerBinaryCallback$3$1(new A._wrapJsFunctionForAsync_closure($protected), type$.void, type$.int, type$.dynamic);
    },
    AsyncError$(error, stackTrace) {
      var t1 = A.checkNotNullable(error, "error", type$.Object);
      return new A.AsyncError(t1, stackTrace == null ? A.AsyncError_defaultStackTrace(error) : stackTrace);
    },
    AsyncError_defaultStackTrace(error) {
      var stackTrace;
      if (type$.Error._is(error)) {
        stackTrace = error.get$stackTrace();
        if (stackTrace != null)
          return stackTrace;
      }
      return B.C__StringStackTrace;
    },
    _Future__chainCoreFutureSync(source, target) {
      var t1, t2, listeners;
      for (t1 = type$._Future_dynamic; t2 = source._state, (t2 & 4) !== 0;)
        source = t1._as(source._resultOrListeners);
      if ((t2 & 24) !== 0) {
        listeners = target._removeListeners$0();
        target._cloneResult$1(source);
        A._Future__propagateToListeners(target, listeners);
      } else {
        listeners = type$.nullable__FutureListener_dynamic_dynamic._as(target._resultOrListeners);
        target._setChained$1(source);
        source._prependListeners$1(listeners);
      }
    },
    _Future__chainCoreFutureAsync(source, target) {
      var t2, t3, listeners, _box_0 = {},
        t1 = _box_0.source = source;
      for (t2 = type$._Future_dynamic; t3 = t1._state, (t3 & 4) !== 0; t1 = source) {
        source = t2._as(t1._resultOrListeners);
        _box_0.source = source;
      }
      if ((t3 & 24) === 0) {
        listeners = type$.nullable__FutureListener_dynamic_dynamic._as(target._resultOrListeners);
        target._setChained$1(t1);
        _box_0.source._prependListeners$1(listeners);
        return;
      }
      if ((t3 & 16) === 0 && target._resultOrListeners == null) {
        target._cloneResult$1(t1);
        return;
      }
      target._state ^= 2;
      A._rootScheduleMicrotask(null, null, target._zone, type$.void_Function._as(new A._Future__chainCoreFutureAsync_closure(_box_0, target)));
    },
    _Future__propagateToListeners(source, listeners) {
      var t2, t3, t4, _box_0, t5, t6, hasError, asyncError, nextListener, nextListener0, sourceResult, t7, zone, oldZone, result, current, _box_1 = {},
        t1 = _box_1.source = source;
      for (t2 = type$.AsyncError, t3 = type$.nullable__FutureListener_dynamic_dynamic, t4 = type$.Future_dynamic; true;) {
        _box_0 = {};
        t5 = t1._state;
        t6 = (t5 & 16) === 0;
        hasError = !t6;
        if (listeners == null) {
          if (hasError && (t5 & 1) === 0) {
            asyncError = t2._as(t1._resultOrListeners);
            A._rootHandleError(asyncError.error, asyncError.stackTrace);
          }
          return;
        }
        _box_0.listener = listeners;
        nextListener = listeners._nextListener;
        for (t1 = listeners; nextListener != null; t1 = nextListener, nextListener = nextListener0) {
          t1._nextListener = null;
          A._Future__propagateToListeners(_box_1.source, t1);
          _box_0.listener = nextListener;
          nextListener0 = nextListener._nextListener;
        }
        t5 = _box_1.source;
        sourceResult = t5._resultOrListeners;
        _box_0.listenerHasError = hasError;
        _box_0.listenerValueOrError = sourceResult;
        if (t6) {
          t7 = t1.state;
          t7 = (t7 & 1) !== 0 || (t7 & 15) === 8;
        } else
          t7 = true;
        if (t7) {
          zone = t1.result._zone;
          if (hasError) {
            t5 = t5._zone === zone;
            t5 = !(t5 || t5);
          } else
            t5 = false;
          if (t5) {
            t2._as(sourceResult);
            A._rootHandleError(sourceResult.error, sourceResult.stackTrace);
            return;
          }
          oldZone = $.Zone__current;
          if (oldZone !== zone)
            $.Zone__current = zone;
          else
            oldZone = null;
          t1 = t1.state;
          if ((t1 & 15) === 8)
            new A._Future__propagateToListeners_handleWhenCompleteCallback(_box_0, _box_1, hasError).call$0();
          else if (t6) {
            if ((t1 & 1) !== 0)
              new A._Future__propagateToListeners_handleValueCallback(_box_0, sourceResult).call$0();
          } else if ((t1 & 2) !== 0)
            new A._Future__propagateToListeners_handleError(_box_1, _box_0).call$0();
          if (oldZone != null)
            $.Zone__current = oldZone;
          t1 = _box_0.listenerValueOrError;
          if (t1 instanceof A._Future) {
            t5 = _box_0.listener.$ti;
            t5 = t5._eval$1("Future<2>")._is(t1) || !t5._rest[1]._is(t1);
          } else
            t5 = false;
          if (t5) {
            t4._as(t1);
            result = _box_0.listener.result;
            if ((t1._state & 24) !== 0) {
              current = t3._as(result._resultOrListeners);
              result._resultOrListeners = null;
              listeners = result._reverseListeners$1(current);
              result._state = t1._state & 30 | result._state & 1;
              result._resultOrListeners = t1._resultOrListeners;
              _box_1.source = t1;
              continue;
            } else
              A._Future__chainCoreFutureSync(t1, result);
            return;
          }
        }
        result = _box_0.listener.result;
        current = t3._as(result._resultOrListeners);
        result._resultOrListeners = null;
        listeners = result._reverseListeners$1(current);
        t1 = _box_0.listenerHasError;
        t5 = _box_0.listenerValueOrError;
        if (!t1) {
          result.$ti._precomputed1._as(t5);
          result._state = 8;
          result._resultOrListeners = t5;
        } else {
          t2._as(t5);
          result._state = result._state & 1 | 16;
          result._resultOrListeners = t5;
        }
        _box_1.source = result;
        t1 = result;
      }
    },
    _registerErrorHandler(errorHandler, zone) {
      var t1;
      if (type$.dynamic_Function_Object_StackTrace._is(errorHandler))
        return zone.registerBinaryCallback$3$1(errorHandler, type$.dynamic, type$.Object, type$.StackTrace);
      t1 = type$.dynamic_Function_Object;
      if (t1._is(errorHandler))
        return t1._as(errorHandler);
      throw A.wrapException(A.ArgumentError$value(errorHandler, "onError", string$.Error_));
    },
    _microtaskLoop() {
      var entry, next;
      for (entry = $._nextCallback; entry != null; entry = $._nextCallback) {
        $._lastPriorityCallback = null;
        next = entry.next;
        $._nextCallback = next;
        if (next == null)
          $._lastCallback = null;
        entry.callback.call$0();
      }
    },
    _startMicrotaskLoop() {
      $._isInCallbackLoop = true;
      try {
        A._microtaskLoop();
      } finally {
        $._lastPriorityCallback = null;
        $._isInCallbackLoop = false;
        if ($._nextCallback != null)
          $.$get$_AsyncRun__scheduleImmediateClosure().call$1(A.async___startMicrotaskLoop$closure());
      }
    },
    _scheduleAsyncCallback(callback) {
      var newEntry = new A._AsyncCallbackEntry(callback),
        lastCallback = $._lastCallback;
      if (lastCallback == null) {
        $._nextCallback = $._lastCallback = newEntry;
        if (!$._isInCallbackLoop)
          $.$get$_AsyncRun__scheduleImmediateClosure().call$1(A.async___startMicrotaskLoop$closure());
      } else
        $._lastCallback = lastCallback.next = newEntry;
    },
    _schedulePriorityAsyncCallback(callback) {
      var entry, lastPriorityCallback, next,
        t1 = $._nextCallback;
      if (t1 == null) {
        A._scheduleAsyncCallback(callback);
        $._lastPriorityCallback = $._lastCallback;
        return;
      }
      entry = new A._AsyncCallbackEntry(callback);
      lastPriorityCallback = $._lastPriorityCallback;
      if (lastPriorityCallback == null) {
        entry.next = t1;
        $._nextCallback = $._lastPriorityCallback = entry;
      } else {
        next = lastPriorityCallback.next;
        entry.next = next;
        $._lastPriorityCallback = lastPriorityCallback.next = entry;
        if (next == null)
          $._lastCallback = entry;
      }
    },
    scheduleMicrotask(callback) {
      var t1, _null = null,
        currentZone = $.Zone__current;
      if (B.C__RootZone === currentZone) {
        A._rootScheduleMicrotask(_null, _null, B.C__RootZone, callback);
        return;
      }
      t1 = false;
      if (t1) {
        A._rootScheduleMicrotask(_null, _null, currentZone, type$.void_Function._as(callback));
        return;
      }
      A._rootScheduleMicrotask(_null, _null, currentZone, type$.void_Function._as(currentZone.bindCallbackGuarded$1(callback)));
    },
    StreamIterator_StreamIterator(stream, $T) {
      A.checkNotNullable(stream, "stream", type$.Object);
      return new A._StreamIterator($T._eval$1("_StreamIterator<0>"));
    },
    _rootHandleError(error, stackTrace) {
      A._schedulePriorityAsyncCallback(new A._rootHandleError_closure(error, stackTrace));
    },
    _rootRun($self, $parent, zone, f, $R) {
      var old,
        t1 = $.Zone__current;
      if (t1 === zone)
        return f.call$0();
      $.Zone__current = zone;
      old = t1;
      try {
        t1 = f.call$0();
        return t1;
      } finally {
        $.Zone__current = old;
      }
    },
    _rootRunUnary($self, $parent, zone, f, arg, $R, $T) {
      var old,
        t1 = $.Zone__current;
      if (t1 === zone)
        return f.call$1(arg);
      $.Zone__current = zone;
      old = t1;
      try {
        t1 = f.call$1(arg);
        return t1;
      } finally {
        $.Zone__current = old;
      }
    },
    _rootRunBinary($self, $parent, zone, f, arg1, arg2, $R, T1, T2) {
      var old,
        t1 = $.Zone__current;
      if (t1 === zone)
        return f.call$2(arg1, arg2);
      $.Zone__current = zone;
      old = t1;
      try {
        t1 = f.call$2(arg1, arg2);
        return t1;
      } finally {
        $.Zone__current = old;
      }
    },
    _rootScheduleMicrotask($self, $parent, zone, f) {
      type$.void_Function._as(f);
      if (B.C__RootZone !== zone)
        f = zone.bindCallbackGuarded$1(f);
      A._scheduleAsyncCallback(f);
    },
    _AsyncRun__initializeScheduleImmediate_internalCallback: function _AsyncRun__initializeScheduleImmediate_internalCallback(t0) {
      this._box_0 = t0;
    },
    _AsyncRun__initializeScheduleImmediate_closure: function _AsyncRun__initializeScheduleImmediate_closure(t0, t1, t2) {
      this._box_0 = t0;
      this.div = t1;
      this.span = t2;
    },
    _AsyncRun__scheduleImmediateJsOverride_internalCallback: function _AsyncRun__scheduleImmediateJsOverride_internalCallback(t0) {
      this.callback = t0;
    },
    _AsyncRun__scheduleImmediateWithSetImmediate_internalCallback: function _AsyncRun__scheduleImmediateWithSetImmediate_internalCallback(t0) {
      this.callback = t0;
    },
    _TimerImpl: function _TimerImpl() {
    },
    _TimerImpl_internalCallback: function _TimerImpl_internalCallback(t0, t1) {
      this.$this = t0;
      this.callback = t1;
    },
    _AsyncAwaitCompleter: function _AsyncAwaitCompleter(t0, t1) {
      this._future = t0;
      this.isSync = false;
      this.$ti = t1;
    },
    _awaitOnObject_closure: function _awaitOnObject_closure(t0) {
      this.bodyFunction = t0;
    },
    _awaitOnObject_closure0: function _awaitOnObject_closure0(t0) {
      this.bodyFunction = t0;
    },
    _wrapJsFunctionForAsync_closure: function _wrapJsFunctionForAsync_closure(t0) {
      this.$protected = t0;
    },
    AsyncError: function AsyncError(t0, t1) {
      this.error = t0;
      this.stackTrace = t1;
    },
    _Completer: function _Completer() {
    },
    _AsyncCompleter: function _AsyncCompleter(t0, t1) {
      this.future = t0;
      this.$ti = t1;
    },
    _FutureListener: function _FutureListener(t0, t1, t2, t3, t4) {
      var _ = this;
      _._nextListener = null;
      _.result = t0;
      _.state = t1;
      _.callback = t2;
      _.errorCallback = t3;
      _.$ti = t4;
    },
    _Future: function _Future(t0, t1) {
      var _ = this;
      _._state = 0;
      _._zone = t0;
      _._resultOrListeners = null;
      _.$ti = t1;
    },
    _Future__addListener_closure: function _Future__addListener_closure(t0, t1) {
      this.$this = t0;
      this.listener = t1;
    },
    _Future__prependListeners_closure: function _Future__prependListeners_closure(t0, t1) {
      this._box_0 = t0;
      this.$this = t1;
    },
    _Future__chainForeignFuture_closure: function _Future__chainForeignFuture_closure(t0) {
      this.$this = t0;
    },
    _Future__chainForeignFuture_closure0: function _Future__chainForeignFuture_closure0(t0) {
      this.$this = t0;
    },
    _Future__chainForeignFuture_closure1: function _Future__chainForeignFuture_closure1(t0, t1, t2) {
      this.$this = t0;
      this.e = t1;
      this.s = t2;
    },
    _Future__chainCoreFutureAsync_closure: function _Future__chainCoreFutureAsync_closure(t0, t1) {
      this._box_0 = t0;
      this.target = t1;
    },
    _Future__asyncCompleteWithValue_closure: function _Future__asyncCompleteWithValue_closure(t0, t1) {
      this.$this = t0;
      this.value = t1;
    },
    _Future__asyncCompleteError_closure: function _Future__asyncCompleteError_closure(t0, t1, t2) {
      this.$this = t0;
      this.error = t1;
      this.stackTrace = t2;
    },
    _Future__propagateToListeners_handleWhenCompleteCallback: function _Future__propagateToListeners_handleWhenCompleteCallback(t0, t1, t2) {
      this._box_0 = t0;
      this._box_1 = t1;
      this.hasError = t2;
    },
    _Future__propagateToListeners_handleWhenCompleteCallback_closure: function _Future__propagateToListeners_handleWhenCompleteCallback_closure(t0) {
      this.originalSource = t0;
    },
    _Future__propagateToListeners_handleValueCallback: function _Future__propagateToListeners_handleValueCallback(t0, t1) {
      this._box_0 = t0;
      this.sourceResult = t1;
    },
    _Future__propagateToListeners_handleError: function _Future__propagateToListeners_handleError(t0, t1) {
      this._box_1 = t0;
      this._box_0 = t1;
    },
    _AsyncCallbackEntry: function _AsyncCallbackEntry(t0) {
      this.callback = t0;
      this.next = null;
    },
    _StreamIterator: function _StreamIterator(t0) {
      this.$ti = t0;
    },
    _Zone: function _Zone() {
    },
    _rootHandleError_closure: function _rootHandleError_closure(t0, t1) {
      this.error = t0;
      this.stackTrace = t1;
    },
    _RootZone: function _RootZone() {
    },
    _RootZone_bindCallbackGuarded_closure: function _RootZone_bindCallbackGuarded_closure(t0, t1) {
      this.$this = t0;
      this.f = t1;
    },
    _HashMap__getTableEntry(table, key) {
      var entry = table[key];
      return entry === table ? null : entry;
    },
    _HashMap__setTableEntry(table, key, value) {
      if (value == null)
        table[key] = table;
      else
        table[key] = value;
    },
    _HashMap__newHashTable() {
      var table = Object.create(null);
      A._HashMap__setTableEntry(table, "<non-identifier-key>", table);
      delete table["<non-identifier-key>"];
      return table;
    },
    LinkedHashMap_LinkedHashMap$_literal(keyValuePairs, $K, $V) {
      return $K._eval$1("@<0>")._bind$1($V)._eval$1("LinkedHashMap<1,2>")._as(A.fillLiteralMap(keyValuePairs, new A.JsLinkedHashMap($K._eval$1("@<0>")._bind$1($V)._eval$1("JsLinkedHashMap<1,2>"))));
    },
    MapBase_mapToString(m) {
      var result, t1 = {};
      if (A.isToStringVisiting(m))
        return "{...}";
      result = new A.StringBuffer("");
      try {
        B.JSArray_methods.add$1($.toStringVisiting, m);
        result._contents += "{";
        t1.first = true;
        m.forEach$1(0, new A.MapBase_mapToString_closure(t1, result));
        result._contents += "}";
      } finally {
        if (0 >= $.toStringVisiting.length)
          return A.ioore($.toStringVisiting, -1);
        $.toStringVisiting.pop();
      }
      t1 = result._contents;
      return t1.charCodeAt(0) == 0 ? t1 : t1;
    },
    _HashMap: function _HashMap() {
    },
    _IdentityHashMap: function _IdentityHashMap(t0) {
      var _ = this;
      _._collection$_length = 0;
      _._keys = _._collection$_rest = _._nums = _._strings = null;
      _.$ti = t0;
    },
    _HashMapKeyIterable: function _HashMapKeyIterable(t0, t1) {
      this._map = t0;
      this.$ti = t1;
    },
    _HashMapKeyIterator: function _HashMapKeyIterator(t0, t1, t2) {
      var _ = this;
      _._map = t0;
      _._keys = t1;
      _._offset = 0;
      _._collection$_current = null;
      _.$ti = t2;
    },
    ListBase: function ListBase() {
    },
    MapBase: function MapBase() {
    },
    MapBase_mapToString_closure: function MapBase_mapToString_closure(t0, t1) {
      this._box_0 = t0;
      this.result = t1;
    },
    Utf8Decoder__convertIntercepted(allowMalformed, codeUnits, start, end) {
      var casted, result;
      if (codeUnits instanceof Uint8Array) {
        casted = codeUnits;
        end = casted.length;
        if (end - start < 15)
          return null;
        result = A.Utf8Decoder__convertInterceptedUint8List(allowMalformed, casted, start, end);
        if (result != null && allowMalformed)
          if (result.indexOf("\ufffd") >= 0)
            return null;
        return result;
      }
      return null;
    },
    Utf8Decoder__convertInterceptedUint8List(allowMalformed, codeUnits, start, end) {
      var decoder = allowMalformed ? $.$get$Utf8Decoder__decoderNonfatal() : $.$get$Utf8Decoder__decoder();
      if (decoder == null)
        return null;
      if (0 === start && end === codeUnits.length)
        return A.Utf8Decoder__useTextDecoder(decoder, codeUnits);
      return A.Utf8Decoder__useTextDecoder(decoder, codeUnits.subarray(start, A.RangeError_checkValidRange(start, end, codeUnits.length)));
    },
    Utf8Decoder__useTextDecoder(decoder, codeUnits) {
      var t1, exception;
      try {
        t1 = decoder.decode(codeUnits);
        return t1;
      } catch (exception) {
      }
      return null;
    },
    Base64Codec__checkPadding(source, sourceIndex, sourceEnd, firstPadding, paddingCount, $length) {
      if (B.JSInt_methods.$mod($length, 4) !== 0)
        throw A.wrapException(A.FormatException$("Invalid base64 padding, padded length must be multiple of four, is " + $length, source, sourceEnd));
      if (firstPadding + paddingCount !== $length)
        throw A.wrapException(A.FormatException$("Invalid base64 padding, '=' not at the end", source, sourceIndex));
      if (paddingCount > 2)
        throw A.wrapException(A.FormatException$("Invalid base64 padding, more than two '=' characters", source, sourceIndex));
    },
    _Utf8Decoder_errorDescription(state) {
      switch (state) {
        case 65:
          return "Missing extension byte";
        case 67:
          return "Unexpected extension byte";
        case 69:
          return "Invalid UTF-8 byte";
        case 71:
          return "Overlong encoding";
        case 73:
          return "Out of unicode range";
        case 75:
          return "Encoded surrogate";
        case 77:
          return "Unfinished UTF-8 octet sequence";
        default:
          return "";
      }
    },
    _Utf8Decoder__makeUint8List(codeUnits, start, end) {
      var t1, i, b,
        $length = end - start,
        bytes = new Uint8Array($length);
      for (t1 = J.getInterceptor$asx(codeUnits), i = 0; i < $length; ++i) {
        b = t1.$index(codeUnits, start + i);
        if ((b & 4294967040) >>> 0 !== 0)
          b = 255;
        if (!(i < $length))
          return A.ioore(bytes, i);
        bytes[i] = b;
      }
      return bytes;
    },
    Utf8Decoder__decoder_closure: function Utf8Decoder__decoder_closure() {
    },
    Utf8Decoder__decoderNonfatal_closure: function Utf8Decoder__decoderNonfatal_closure() {
    },
    Base64Codec: function Base64Codec() {
    },
    Base64Encoder: function Base64Encoder() {
    },
    Codec: function Codec() {
    },
    Converter: function Converter() {
    },
    Encoding: function Encoding() {
    },
    Utf8Codec: function Utf8Codec() {
    },
    Utf8Decoder: function Utf8Decoder(t0) {
      this._allowMalformed = t0;
    },
    _Utf8Decoder: function _Utf8Decoder(t0) {
      this.allowMalformed = t0;
      this._convert$_state = 16;
      this._charOrIndex = 0;
    },
    int_parse(source, radix) {
      var value = A.Primitives_parseInt(source, radix);
      if (value != null)
        return value;
      throw A.wrapException(A.FormatException$(source, null, null));
    },
    Error__throw(error, stackTrace) {
      error = A.wrapException(error);
      if (error == null)
        error = type$.Object._as(error);
      error.stack = stackTrace.toString$0(0);
      throw error;
      throw A.wrapException("unreachable");
    },
    List_List$filled($length, fill, growable, $E) {
      var result, t1, i;
      if ($length > 4294967295)
        A.throwExpression(A.RangeError$range($length, 0, 4294967295, "length", null));
      result = J.JSArray_markFixedList(A._setArrayType(new Array($length), $E._eval$1("JSArray<0>")), $E);
      if ($length !== 0 && fill != null)
        for (t1 = result.length, i = 0; i < t1; ++i)
          result[i] = fill;
      return result;
    },
    List_List$from(elements, growable, $E) {
      var t1,
        list = A._setArrayType([], $E._eval$1("JSArray<0>"));
      for (t1 = J.get$iterator$ax(elements); t1.moveNext$0();)
        B.JSArray_methods.add$1(list, $E._as(t1.get$current()));
      if (growable)
        return list;
      return J.JSArray_markFixedList(list, $E);
    },
    List_List$unmodifiable(elements, $E) {
      var result = A.List_List$from(elements, false, $E);
      result.fixed$length = Array;
      result.immutable$list = Array;
      return result;
    },
    String_String$fromCharCodes(charCodes, start, end) {
      var t1 = A.Primitives_stringFromNativeUint8List(charCodes, start, A.RangeError_checkValidRange(start, end, charCodes.length));
      return t1;
    },
    String_String$fromCharCode(charCode) {
      return A.Primitives_stringFromCharCode(charCode);
    },
    RegExp_RegExp(source) {
      return new A.JSSyntaxRegExp(source, A.JSSyntaxRegExp_makeNative(source, false, true, false, false, false));
    },
    StringBuffer__writeAll(string, objects, separator) {
      var iterator = J.get$iterator$ax(objects);
      if (!iterator.moveNext$0())
        return string;
      if (separator.length === 0) {
        do
          string += A.S(iterator.get$current());
        while (iterator.moveNext$0());
      } else {
        string += A.S(iterator.get$current());
        for (; iterator.moveNext$0();)
          string = string + separator + A.S(iterator.get$current());
      }
      return string;
    },
    Uri_base() {
      var cachedUri, uri,
        current = A.Primitives_currentUri();
      if (current == null)
        throw A.wrapException(A.UnsupportedError$("'Uri.base' is not supported"));
      cachedUri = $.Uri__cachedBaseUri;
      if (cachedUri != null && current === $.Uri__cachedBaseString)
        return cachedUri;
      uri = A.Uri_parse(current);
      $.Uri__cachedBaseUri = uri;
      $.Uri__cachedBaseString = current;
      return uri;
    },
    Error_safeToString(object) {
      if (typeof object == "number" || A._isBool(object) || object == null)
        return J.toString$0$(object);
      if (typeof object == "string")
        return JSON.stringify(object);
      return A.Primitives_safeToString(object);
    },
    Error_throwWithStackTrace(error, stackTrace) {
      A.checkNotNullable(error, "error", type$.Object);
      A.checkNotNullable(stackTrace, "stackTrace", type$.StackTrace);
      A.Error__throw(error, stackTrace);
    },
    AssertionError$(message) {
      return new A.AssertionError(message);
    },
    ArgumentError$(message, $name) {
      return new A.ArgumentError(false, null, $name, message);
    },
    ArgumentError$value(value, $name, message) {
      return new A.ArgumentError(true, value, $name, message);
    },
    RangeError$range(invalidValue, minValue, maxValue, $name, message) {
      return new A.RangeError(minValue, maxValue, true, invalidValue, $name, "Invalid value");
    },
    RangeError_checkValidRange(start, end, $length) {
      if (0 > start || start > $length)
        throw A.wrapException(A.RangeError$range(start, 0, $length, "start", null));
      if (end != null) {
        if (start > end || end > $length)
          throw A.wrapException(A.RangeError$range(end, start, $length, "end", null));
        return end;
      }
      return $length;
    },
    RangeError_checkNotNegative(value, $name) {
      if (value < 0)
        throw A.wrapException(A.RangeError$range(value, 0, null, $name, null));
      return value;
    },
    IndexError$withLength(invalidValue, $length, indexable, $name) {
      return new A.IndexError($length, true, invalidValue, $name, "Index out of range");
    },
    UnsupportedError$(message) {
      return new A.UnsupportedError(message);
    },
    UnimplementedError$(message) {
      return new A.UnimplementedError(message);
    },
    StateError$(message) {
      return new A.StateError(message);
    },
    ConcurrentModificationError$(modifiedObject) {
      return new A.ConcurrentModificationError(modifiedObject);
    },
    FormatException$(message, source, offset) {
      return new A.FormatException(message, source, offset);
    },
    Iterable_iterableToShortString(iterable, leftDelimiter, rightDelimiter) {
      var parts, t1;
      if (A.isToStringVisiting(iterable)) {
        if (leftDelimiter === "(" && rightDelimiter === ")")
          return "(...)";
        return leftDelimiter + "..." + rightDelimiter;
      }
      parts = A._setArrayType([], type$.JSArray_String);
      B.JSArray_methods.add$1($.toStringVisiting, iterable);
      try {
        A._iterablePartsToStrings(iterable, parts);
      } finally {
        if (0 >= $.toStringVisiting.length)
          return A.ioore($.toStringVisiting, -1);
        $.toStringVisiting.pop();
      }
      t1 = A.StringBuffer__writeAll(leftDelimiter, type$.Iterable_dynamic._as(parts), ", ") + rightDelimiter;
      return t1.charCodeAt(0) == 0 ? t1 : t1;
    },
    Iterable_iterableToFullString(iterable, leftDelimiter, rightDelimiter) {
      var buffer, t1;
      if (A.isToStringVisiting(iterable))
        return leftDelimiter + "..." + rightDelimiter;
      buffer = new A.StringBuffer(leftDelimiter);
      B.JSArray_methods.add$1($.toStringVisiting, iterable);
      try {
        t1 = buffer;
        t1._contents = A.StringBuffer__writeAll(t1._contents, iterable, ", ");
      } finally {
        if (0 >= $.toStringVisiting.length)
          return A.ioore($.toStringVisiting, -1);
        $.toStringVisiting.pop();
      }
      buffer._contents += rightDelimiter;
      t1 = buffer._contents;
      return t1.charCodeAt(0) == 0 ? t1 : t1;
    },
    _iterablePartsToStrings(iterable, parts) {
      var next, ultimateString, penultimateString, penultimate, ultimate, ultimate0, elision,
        it = iterable.get$iterator(iterable),
        $length = 0, count = 0;
      while (true) {
        if (!($length < 80 || count < 3))
          break;
        if (!it.moveNext$0())
          return;
        next = A.S(it.get$current());
        B.JSArray_methods.add$1(parts, next);
        $length += next.length + 2;
        ++count;
      }
      if (!it.moveNext$0()) {
        if (count <= 5)
          return;
        if (0 >= parts.length)
          return A.ioore(parts, -1);
        ultimateString = parts.pop();
        if (0 >= parts.length)
          return A.ioore(parts, -1);
        penultimateString = parts.pop();
      } else {
        penultimate = it.get$current();
        ++count;
        if (!it.moveNext$0()) {
          if (count <= 4) {
            B.JSArray_methods.add$1(parts, A.S(penultimate));
            return;
          }
          ultimateString = A.S(penultimate);
          if (0 >= parts.length)
            return A.ioore(parts, -1);
          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)
                  return A.ioore(parts, -1);
                $length -= parts.pop().length + 2;
                --count;
              }
              B.JSArray_methods.add$1(parts, "...");
              return;
            }
          }
          penultimateString = A.S(penultimate);
          ultimateString = A.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)
          return A.ioore(parts, -1);
        $length -= parts.pop().length + 2;
        if (elision == null) {
          $length += 5;
          elision = "...";
        }
      }
      if (elision != null)
        B.JSArray_methods.add$1(parts, elision);
      B.JSArray_methods.add$1(parts, penultimateString);
      B.JSArray_methods.add$1(parts, ultimateString);
    },
    Uri_parse(uri) {
      var delta, indices, schemeEnd, hostStart, portStart, pathStart, queryStart, fragmentStart, isSimple, scheme, t1, t2, schemeAuth, queryStart0, pathStart0, userInfoStart, userInfo, host, portNumber, port, path, query, _null = null,
        end = uri.length;
      if (end >= 5) {
        if (4 >= end)
          return A.ioore(uri, 4);
        delta = ((uri.charCodeAt(4) ^ 58) * 3 | uri.charCodeAt(0) ^ 100 | uri.charCodeAt(1) ^ 97 | uri.charCodeAt(2) ^ 116 | uri.charCodeAt(3) ^ 97) >>> 0;
        if (delta === 0)
          return A.UriData__parse(end < end ? B.JSString_methods.substring$2(uri, 0, end) : uri, 5, _null).get$uri();
        else if (delta === 32)
          return A.UriData__parse(B.JSString_methods.substring$2(uri, 5, end), 0, _null).get$uri();
      }
      indices = A.List_List$filled(8, 0, false, type$.int);
      B.JSArray_methods.$indexSet(indices, 0, 0);
      B.JSArray_methods.$indexSet(indices, 1, -1);
      B.JSArray_methods.$indexSet(indices, 2, -1);
      B.JSArray_methods.$indexSet(indices, 7, -1);
      B.JSArray_methods.$indexSet(indices, 3, 0);
      B.JSArray_methods.$indexSet(indices, 4, 0);
      B.JSArray_methods.$indexSet(indices, 5, end);
      B.JSArray_methods.$indexSet(indices, 6, end);
      if (A._scan(uri, 0, end, 0, indices) >= 14)
        B.JSArray_methods.$indexSet(indices, 7, end);
      schemeEnd = indices[1];
      if (schemeEnd >= 0)
        if (A._scan(uri, 0, schemeEnd, 20, indices) === 20)
          indices[7] = schemeEnd;
      hostStart = indices[2] + 1;
      portStart = indices[3];
      pathStart = indices[4];
      queryStart = indices[5];
      fragmentStart = indices[6];
      if (fragmentStart < queryStart)
        queryStart = fragmentStart;
      if (pathStart < hostStart)
        pathStart = queryStart;
      else if (pathStart <= schemeEnd)
        pathStart = schemeEnd + 1;
      if (portStart < hostStart)
        portStart = pathStart;
      isSimple = indices[7] < 0;
      if (isSimple)
        if (hostStart > schemeEnd + 3) {
          scheme = _null;
          isSimple = false;
        } else {
          t1 = portStart > 0;
          if (t1 && portStart + 1 === pathStart) {
            scheme = _null;
            isSimple = false;
          } else {
            if (!B.JSString_methods.startsWith$2(uri, "\\", pathStart))
              if (hostStart > 0)
                t2 = B.JSString_methods.startsWith$2(uri, "\\", hostStart - 1) || B.JSString_methods.startsWith$2(uri, "\\", hostStart - 2);
              else
                t2 = false;
            else
              t2 = true;
            if (t2) {
              scheme = _null;
              isSimple = false;
            } else {
              if (!(queryStart < end && queryStart === pathStart + 2 && B.JSString_methods.startsWith$2(uri, "..", pathStart)))
                t2 = queryStart > pathStart + 2 && B.JSString_methods.startsWith$2(uri, "/..", queryStart - 3);
              else
                t2 = true;
              if (t2) {
                scheme = _null;
                isSimple = false;
              } else {
                if (schemeEnd === 4)
                  if (B.JSString_methods.startsWith$2(uri, "file", 0)) {
                    if (hostStart <= 0) {
                      if (!B.JSString_methods.startsWith$2(uri, "/", pathStart)) {
                        schemeAuth = "file:///";
                        delta = 3;
                      } else {
                        schemeAuth = "file://";
                        delta = 2;
                      }
                      uri = schemeAuth + B.JSString_methods.substring$2(uri, pathStart, end);
                      schemeEnd -= 0;
                      t1 = delta - 0;
                      queryStart += t1;
                      fragmentStart += t1;
                      end = uri.length;
                      hostStart = 7;
                      portStart = 7;
                      pathStart = 7;
                    } else if (pathStart === queryStart) {
                      ++fragmentStart;
                      queryStart0 = queryStart + 1;
                      uri = B.JSString_methods.replaceRange$3(uri, pathStart, queryStart, "/");
                      ++end;
                      queryStart = queryStart0;
                    }
                    scheme = "file";
                  } else if (B.JSString_methods.startsWith$2(uri, "http", 0)) {
                    if (t1 && portStart + 3 === pathStart && B.JSString_methods.startsWith$2(uri, "80", portStart + 1)) {
                      fragmentStart -= 3;
                      pathStart0 = pathStart - 3;
                      queryStart -= 3;
                      uri = B.JSString_methods.replaceRange$3(uri, portStart, pathStart, "");
                      end -= 3;
                      pathStart = pathStart0;
                    }
                    scheme = "http";
                  } else
                    scheme = _null;
                else if (schemeEnd === 5 && B.JSString_methods.startsWith$2(uri, "https", 0)) {
                  if (t1 && portStart + 4 === pathStart && B.JSString_methods.startsWith$2(uri, "443", portStart + 1)) {
                    fragmentStart -= 4;
                    pathStart0 = pathStart - 4;
                    queryStart -= 4;
                    uri = B.JSString_methods.replaceRange$3(uri, portStart, pathStart, "");
                    end -= 3;
                    pathStart = pathStart0;
                  }
                  scheme = "https";
                } else
                  scheme = _null;
                isSimple = true;
              }
            }
          }
        }
      else
        scheme = _null;
      if (isSimple) {
        if (end < uri.length) {
          uri = B.JSString_methods.substring$2(uri, 0, end);
          schemeEnd -= 0;
          hostStart -= 0;
          portStart -= 0;
          pathStart -= 0;
          queryStart -= 0;
          fragmentStart -= 0;
        }
        return new A._SimpleUri(uri, schemeEnd, hostStart, portStart, pathStart, queryStart, fragmentStart, scheme);
      }
      if (scheme == null)
        if (schemeEnd > 0)
          scheme = A._Uri__makeScheme(uri, 0, schemeEnd);
        else {
          if (schemeEnd === 0)
            A._Uri__fail(uri, 0, "Invalid empty scheme");
          scheme = "";
        }
      if (hostStart > 0) {
        userInfoStart = schemeEnd + 3;
        userInfo = userInfoStart < hostStart ? A._Uri__makeUserInfo(uri, userInfoStart, hostStart - 1) : "";
        host = A._Uri__makeHost(uri, hostStart, portStart, false);
        t1 = portStart + 1;
        if (t1 < pathStart) {
          portNumber = A.Primitives_parseInt(B.JSString_methods.substring$2(uri, t1, pathStart), _null);
          port = A._Uri__makePort(portNumber == null ? A.throwExpression(A.FormatException$("Invalid port", uri, t1)) : portNumber, scheme);
        } else
          port = _null;
      } else {
        port = _null;
        host = port;
        userInfo = "";
      }
      path = A._Uri__makePath(uri, pathStart, queryStart, _null, scheme, host != null);
      query = queryStart < fragmentStart ? A._Uri__makeQuery(uri, queryStart + 1, fragmentStart, _null) : _null;
      return A._Uri$_internal(scheme, userInfo, host, port, path, query, fragmentStart < end ? A._Uri__makeFragment(uri, fragmentStart + 1, end) : _null);
    },
    Uri_decodeComponent(encodedComponent) {
      A._asString(encodedComponent);
      return A._Uri__uriDecode(encodedComponent, 0, encodedComponent.length, B.C_Utf8Codec, false);
    },
    Uri__parseIPv4Address(host, start, end) {
      var t1, i, partStart, partIndex, char, part, partIndex0,
        _s43_ = "IPv4 address should contain exactly 4 parts",
        _s37_ = "each part must be in the range 0..255",
        error = new A.Uri__parseIPv4Address_error(host),
        result = new Uint8Array(4);
      for (t1 = host.length, i = start, partStart = i, partIndex = 0; i < end; ++i) {
        if (!(i >= 0 && i < t1))
          return A.ioore(host, i);
        char = host.charCodeAt(i);
        if (char !== 46) {
          if ((char ^ 48) > 9)
            error.call$2("invalid character", i);
        } else {
          if (partIndex === 3)
            error.call$2(_s43_, i);
          part = A.int_parse(B.JSString_methods.substring$2(host, partStart, i), null);
          if (part > 255)
            error.call$2(_s37_, partStart);
          partIndex0 = partIndex + 1;
          if (!(partIndex < 4))
            return A.ioore(result, partIndex);
          result[partIndex] = part;
          partStart = i + 1;
          partIndex = partIndex0;
        }
      }
      if (partIndex !== 3)
        error.call$2(_s43_, end);
      part = A.int_parse(B.JSString_methods.substring$2(host, partStart, end), null);
      if (part > 255)
        error.call$2(_s37_, partStart);
      if (!(partIndex < 4))
        return A.ioore(result, partIndex);
      result[partIndex] = part;
      return result;
    },
    Uri_parseIPv6Address(host, start, end) {
      var parts, i, partStart, wildcardSeen, seenDot, char, atEnd, last, bytes, wildCardLength, index, value, j, t2, _null = null,
        error = new A.Uri_parseIPv6Address_error(host),
        parseHex = new A.Uri_parseIPv6Address_parseHex(error, host),
        t1 = host.length;
      if (t1 < 2)
        error.call$2("address is too short", _null);
      parts = A._setArrayType([], type$.JSArray_int);
      for (i = start, partStart = i, wildcardSeen = false, seenDot = false; i < end; ++i) {
        if (!(i >= 0 && i < t1))
          return A.ioore(host, i);
        char = host.charCodeAt(i);
        if (char === 58) {
          if (i === start) {
            ++i;
            if (!(i < t1))
              return A.ioore(host, i);
            if (host.charCodeAt(i) !== 58)
              error.call$2("invalid start colon.", i);
            partStart = i;
          }
          if (i === partStart) {
            if (wildcardSeen)
              error.call$2("only one wildcard `::` is allowed", i);
            B.JSArray_methods.add$1(parts, -1);
            wildcardSeen = true;
          } else
            B.JSArray_methods.add$1(parts, parseHex.call$2(partStart, i));
          partStart = i + 1;
        } else if (char === 46)
          seenDot = true;
      }
      if (parts.length === 0)
        error.call$2("too few parts", _null);
      atEnd = partStart === end;
      t1 = B.JSArray_methods.get$last(parts);
      if (atEnd && t1 !== -1)
        error.call$2("expected a part after last `:`", end);
      if (!atEnd)
        if (!seenDot)
          B.JSArray_methods.add$1(parts, parseHex.call$2(partStart, end));
        else {
          last = A.Uri__parseIPv4Address(host, partStart, end);
          B.JSArray_methods.add$1(parts, (last[0] << 8 | last[1]) >>> 0);
          B.JSArray_methods.add$1(parts, (last[2] << 8 | last[3]) >>> 0);
        }
      if (wildcardSeen) {
        if (parts.length > 7)
          error.call$2("an address with a wildcard must have less than 7 parts", _null);
      } else if (parts.length !== 8)
        error.call$2("an address without a wildcard must contain exactly 8 parts", _null);
      bytes = new Uint8Array(16);
      for (t1 = parts.length, wildCardLength = 9 - t1, i = 0, index = 0; i < t1; ++i) {
        value = parts[i];
        if (value === -1)
          for (j = 0; j < wildCardLength; ++j) {
            if (!(index >= 0 && index < 16))
              return A.ioore(bytes, index);
            bytes[index] = 0;
            t2 = index + 1;
            if (!(t2 < 16))
              return A.ioore(bytes, t2);
            bytes[t2] = 0;
            index += 2;
          }
        else {
          t2 = B.JSInt_methods._shrOtherPositive$1(value, 8);
          if (!(index >= 0 && index < 16))
            return A.ioore(bytes, index);
          bytes[index] = t2;
          t2 = index + 1;
          if (!(t2 < 16))
            return A.ioore(bytes, t2);
          bytes[t2] = value & 255;
          index += 2;
        }
      }
      return bytes;
    },
    _Uri$_internal(scheme, _userInfo, _host, _port, path, _query, _fragment) {
      return new A._Uri(scheme, _userInfo, _host, _port, path, _query, _fragment);
    },
    _Uri__defaultPort(scheme) {
      if (scheme === "http")
        return 80;
      if (scheme === "https")
        return 443;
      return 0;
    },
    _Uri__fail(uri, index, message) {
      throw A.wrapException(A.FormatException$(message, uri, index));
    },
    _Uri__checkNonWindowsPathReservedCharacters(segments, argumentError) {
      var t1, _i, segment;
      for (t1 = segments.length, _i = 0; _i < t1; ++_i) {
        segment = segments[_i];
        if (J.contains$1$asx(segment, "/")) {
          t1 = A.UnsupportedError$("Illegal path character " + A.S(segment));
          throw A.wrapException(t1);
        }
      }
    },
    _Uri__checkWindowsPathReservedCharacters(segments, argumentError, firstSegment) {
      var t1, t2, t3;
      for (t1 = A.SubListIterable$(segments, firstSegment, null, A._arrayInstanceType(segments)._precomputed1), t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(t1), t2._eval$1("ListIterator<ListIterable.E>")), t2 = t2._eval$1("ListIterable.E"); t1.moveNext$0();) {
        t3 = t1.__internal$_current;
        if (t3 == null)
          t3 = t2._as(t3);
        if (B.JSString_methods.contains$1(t3, A.RegExp_RegExp('["*/:<>?\\\\|]'))) {
          t1 = A.UnsupportedError$("Illegal character in path: " + t3);
          throw A.wrapException(t1);
        }
      }
    },
    _Uri__checkWindowsDriveLetter(charCode, argumentError) {
      var t1;
      if (!(65 <= charCode && charCode <= 90))
        t1 = 97 <= charCode && charCode <= 122;
      else
        t1 = true;
      if (t1)
        return;
      t1 = A.UnsupportedError$("Illegal drive letter " + A.String_String$fromCharCode(charCode));
      throw A.wrapException(t1);
    },
    _Uri__makePort(port, scheme) {
      if (port != null && port === A._Uri__defaultPort(scheme))
        return null;
      return port;
    },
    _Uri__makeHost(host, start, end, strictIPv6) {
      var t1, t2, index, zoneIDstart, zoneID, i;
      if (host == null)
        return null;
      if (start === end)
        return "";
      t1 = host.length;
      if (!(start >= 0 && start < t1))
        return A.ioore(host, start);
      if (host.charCodeAt(start) === 91) {
        t2 = end - 1;
        if (!(t2 >= 0 && t2 < t1))
          return A.ioore(host, t2);
        if (host.charCodeAt(t2) !== 93)
          A._Uri__fail(host, start, "Missing end `]` to match `[` in host");
        t1 = start + 1;
        index = A._Uri__checkZoneID(host, t1, t2);
        if (index < t2) {
          zoneIDstart = index + 1;
          zoneID = A._Uri__normalizeZoneID(host, B.JSString_methods.startsWith$2(host, "25", zoneIDstart) ? index + 3 : zoneIDstart, t2, "%25");
        } else
          zoneID = "";
        A.Uri_parseIPv6Address(host, t1, index);
        return B.JSString_methods.substring$2(host, start, index).toLowerCase() + zoneID + "]";
      }
      for (i = start; i < end; ++i) {
        if (!(i < t1))
          return A.ioore(host, i);
        if (host.charCodeAt(i) === 58) {
          index = B.JSString_methods.indexOf$2(host, "%", start);
          index = index >= start && index < end ? index : end;
          if (index < end) {
            zoneIDstart = index + 1;
            zoneID = A._Uri__normalizeZoneID(host, B.JSString_methods.startsWith$2(host, "25", zoneIDstart) ? index + 3 : zoneIDstart, end, "%25");
          } else
            zoneID = "";
          A.Uri_parseIPv6Address(host, start, index);
          return "[" + B.JSString_methods.substring$2(host, start, index) + zoneID + "]";
        }
      }
      return A._Uri__normalizeRegName(host, start, end);
    },
    _Uri__checkZoneID(host, start, end) {
      var index = B.JSString_methods.indexOf$2(host, "%", start);
      return index >= start && index < end ? index : end;
    },
    _Uri__normalizeZoneID(host, start, end, prefix) {
      var t1, index, sectionStart, isNormalized, char, replacement, t2, t3, tail, sourceLength, slice,
        buffer = prefix !== "" ? new A.StringBuffer(prefix) : null;
      for (t1 = host.length, index = start, sectionStart = index, isNormalized = true; index < end;) {
        if (!(index >= 0 && index < t1))
          return A.ioore(host, index);
        char = host.charCodeAt(index);
        if (char === 37) {
          replacement = A._Uri__normalizeEscape(host, index, true);
          t2 = replacement == null;
          if (t2 && isNormalized) {
            index += 3;
            continue;
          }
          if (buffer == null)
            buffer = new A.StringBuffer("");
          t3 = buffer._contents += B.JSString_methods.substring$2(host, sectionStart, index);
          if (t2)
            replacement = B.JSString_methods.substring$2(host, index, index + 3);
          else if (replacement === "%")
            A._Uri__fail(host, index, "ZoneID should not contain % anymore");
          buffer._contents = t3 + replacement;
          index += 3;
          sectionStart = index;
          isNormalized = true;
        } else {
          if (char < 127) {
            t2 = char >>> 4;
            if (!(t2 < 8))
              return A.ioore(B.List_M1A, t2);
            t2 = (B.List_M1A[t2] & 1 << (char & 15)) !== 0;
          } else
            t2 = false;
          if (t2) {
            if (isNormalized && 65 <= char && 90 >= char) {
              if (buffer == null)
                buffer = new A.StringBuffer("");
              if (sectionStart < index) {
                buffer._contents += B.JSString_methods.substring$2(host, sectionStart, index);
                sectionStart = index;
              }
              isNormalized = false;
            }
            ++index;
          } else {
            if ((char & 64512) === 55296 && index + 1 < end) {
              t2 = index + 1;
              if (!(t2 < t1))
                return A.ioore(host, t2);
              tail = host.charCodeAt(t2);
              if ((tail & 64512) === 56320) {
                char = (char & 1023) << 10 | tail & 1023 | 65536;
                sourceLength = 2;
              } else
                sourceLength = 1;
            } else
              sourceLength = 1;
            slice = B.JSString_methods.substring$2(host, sectionStart, index);
            if (buffer == null) {
              buffer = new A.StringBuffer("");
              t2 = buffer;
            } else
              t2 = buffer;
            t2._contents += slice;
            t2._contents += A._Uri__escapeChar(char);
            index += sourceLength;
            sectionStart = index;
          }
        }
      }
      if (buffer == null)
        return B.JSString_methods.substring$2(host, start, end);
      if (sectionStart < end)
        buffer._contents += B.JSString_methods.substring$2(host, sectionStart, end);
      t1 = buffer._contents;
      return t1.charCodeAt(0) == 0 ? t1 : t1;
    },
    _Uri__normalizeRegName(host, start, end) {
      var t1, index, sectionStart, buffer, isNormalized, char, replacement, t2, slice, t3, sourceLength, tail;
      for (t1 = host.length, index = start, sectionStart = index, buffer = null, isNormalized = true; index < end;) {
        if (!(index >= 0 && index < t1))
          return A.ioore(host, index);
        char = host.charCodeAt(index);
        if (char === 37) {
          replacement = A._Uri__normalizeEscape(host, index, true);
          t2 = replacement == null;
          if (t2 && isNormalized) {
            index += 3;
            continue;
          }
          if (buffer == null)
            buffer = new A.StringBuffer("");
          slice = B.JSString_methods.substring$2(host, sectionStart, index);
          t3 = buffer._contents += !isNormalized ? slice.toLowerCase() : slice;
          if (t2) {
            replacement = B.JSString_methods.substring$2(host, index, index + 3);
            sourceLength = 3;
          } else if (replacement === "%") {
            replacement = "%25";
            sourceLength = 1;
          } else
            sourceLength = 3;
          buffer._contents = t3 + replacement;
          index += sourceLength;
          sectionStart = index;
          isNormalized = true;
        } else {
          if (char < 127) {
            t2 = char >>> 4;
            if (!(t2 < 8))
              return A.ioore(B.List_ejq, t2);
            t2 = (B.List_ejq[t2] & 1 << (char & 15)) !== 0;
          } else
            t2 = false;
          if (t2) {
            if (isNormalized && 65 <= char && 90 >= char) {
              if (buffer == null)
                buffer = new A.StringBuffer("");
              if (sectionStart < index) {
                buffer._contents += B.JSString_methods.substring$2(host, sectionStart, index);
                sectionStart = index;
              }
              isNormalized = false;
            }
            ++index;
          } else {
            if (char <= 93) {
              t2 = char >>> 4;
              if (!(t2 < 8))
                return A.ioore(B.List_YmH, t2);
              t2 = (B.List_YmH[t2] & 1 << (char & 15)) !== 0;
            } else
              t2 = false;
            if (t2)
              A._Uri__fail(host, index, "Invalid character");
            else {
              if ((char & 64512) === 55296 && index + 1 < end) {
                t2 = index + 1;
                if (!(t2 < t1))
                  return A.ioore(host, t2);
                tail = host.charCodeAt(t2);
                if ((tail & 64512) === 56320) {
                  char = (char & 1023) << 10 | tail & 1023 | 65536;
                  sourceLength = 2;
                } else
                  sourceLength = 1;
              } else
                sourceLength = 1;
              slice = B.JSString_methods.substring$2(host, sectionStart, index);
              if (!isNormalized)
                slice = slice.toLowerCase();
              if (buffer == null) {
                buffer = new A.StringBuffer("");
                t2 = buffer;
              } else
                t2 = buffer;
              t2._contents += slice;
              t2._contents += A._Uri__escapeChar(char);
              index += sourceLength;
              sectionStart = index;
            }
          }
        }
      }
      if (buffer == null)
        return B.JSString_methods.substring$2(host, start, end);
      if (sectionStart < end) {
        slice = B.JSString_methods.substring$2(host, sectionStart, end);
        buffer._contents += !isNormalized ? slice.toLowerCase() : slice;
      }
      t1 = buffer._contents;
      return t1.charCodeAt(0) == 0 ? t1 : t1;
    },
    _Uri__makeScheme(scheme, start, end) {
      var t1, i, containsUpperCase, codeUnit, t2;
      if (start === end)
        return "";
      t1 = scheme.length;
      if (!(start < t1))
        return A.ioore(scheme, start);
      if (!A._Uri__isAlphabeticCharacter(scheme.charCodeAt(start)))
        A._Uri__fail(scheme, start, "Scheme not starting with alphabetic character");
      for (i = start, containsUpperCase = false; i < end; ++i) {
        if (!(i < t1))
          return A.ioore(scheme, i);
        codeUnit = scheme.charCodeAt(i);
        if (codeUnit < 128) {
          t2 = codeUnit >>> 4;
          if (!(t2 < 8))
            return A.ioore(B.List_MMm, t2);
          t2 = (B.List_MMm[t2] & 1 << (codeUnit & 15)) !== 0;
        } else
          t2 = false;
        if (!t2)
          A._Uri__fail(scheme, i, "Illegal scheme character");
        if (65 <= codeUnit && codeUnit <= 90)
          containsUpperCase = true;
      }
      scheme = B.JSString_methods.substring$2(scheme, start, end);
      return A._Uri__canonicalizeScheme(containsUpperCase ? scheme.toLowerCase() : scheme);
    },
    _Uri__canonicalizeScheme(scheme) {
      if (scheme === "http")
        return "http";
      if (scheme === "file")
        return "file";
      if (scheme === "https")
        return "https";
      if (scheme === "package")
        return "package";
      return scheme;
    },
    _Uri__makeUserInfo(userInfo, start, end) {
      if (userInfo == null)
        return "";
      return A._Uri__normalizeOrSubstring(userInfo, start, end, B.List_OL3, false, false);
    },
    _Uri__makePath(path, start, end, pathSegments, scheme, hasAuthority) {
      var isFile = scheme === "file",
        ensureLeadingSlash = isFile || hasAuthority,
        result = A._Uri__normalizeOrSubstring(path, start, end, B.List_XRg, true, true);
      if (result.length === 0) {
        if (isFile)
          return "/";
      } else if (ensureLeadingSlash && !B.JSString_methods.startsWith$1(result, "/"))
        result = "/" + result;
      return A._Uri__normalizePath(result, scheme, hasAuthority);
    },
    _Uri__normalizePath(path, scheme, hasAuthority) {
      var t1 = scheme.length === 0;
      if (t1 && !hasAuthority && !B.JSString_methods.startsWith$1(path, "/") && !B.JSString_methods.startsWith$1(path, "\\"))
        return A._Uri__normalizeRelativePath(path, !t1 || hasAuthority);
      return A._Uri__removeDotSegments(path);
    },
    _Uri__makeQuery(query, start, end, queryParameters) {
      if (query != null)
        return A._Uri__normalizeOrSubstring(query, start, end, B.List_oFp, true, false);
      return null;
    },
    _Uri__makeFragment(fragment, start, end) {
      if (fragment == null)
        return null;
      return A._Uri__normalizeOrSubstring(fragment, start, end, B.List_oFp, true, false);
    },
    _Uri__normalizeEscape(source, index, lowerCase) {
      var t3, firstDigit, secondDigit, firstDigitValue, secondDigitValue, value,
        t1 = index + 2,
        t2 = source.length;
      if (t1 >= t2)
        return "%";
      t3 = index + 1;
      if (!(t3 >= 0 && t3 < t2))
        return A.ioore(source, t3);
      firstDigit = source.charCodeAt(t3);
      if (!(t1 >= 0))
        return A.ioore(source, t1);
      secondDigit = source.charCodeAt(t1);
      firstDigitValue = A.hexDigitValue(firstDigit);
      secondDigitValue = A.hexDigitValue(secondDigit);
      if (firstDigitValue < 0 || secondDigitValue < 0)
        return "%";
      value = firstDigitValue * 16 + secondDigitValue;
      if (value < 127) {
        t1 = B.JSInt_methods._shrOtherPositive$1(value, 4);
        if (!(t1 < 8))
          return A.ioore(B.List_M1A, t1);
        t1 = (B.List_M1A[t1] & 1 << (value & 15)) !== 0;
      } else
        t1 = false;
      if (t1)
        return A.Primitives_stringFromCharCode(lowerCase && 65 <= value && 90 >= value ? (value | 32) >>> 0 : value);
      if (firstDigit >= 97 || secondDigit >= 97)
        return B.JSString_methods.substring$2(source, index, index + 3).toUpperCase();
      return null;
    },
    _Uri__escapeChar(char) {
      var codeUnits, t1, flag, encodedBytes, index, byte, t2, t3,
        _s16_ = "0123456789ABCDEF";
      if (char < 128) {
        codeUnits = new Uint8Array(3);
        codeUnits[0] = 37;
        t1 = char >>> 4;
        if (!(t1 < 16))
          return A.ioore(_s16_, t1);
        codeUnits[1] = _s16_.charCodeAt(t1);
        codeUnits[2] = _s16_.charCodeAt(char & 15);
      } else {
        if (char > 2047)
          if (char > 65535) {
            flag = 240;
            encodedBytes = 4;
          } else {
            flag = 224;
            encodedBytes = 3;
          }
        else {
          flag = 192;
          encodedBytes = 2;
        }
        t1 = 3 * encodedBytes;
        codeUnits = new Uint8Array(t1);
        for (index = 0; --encodedBytes, encodedBytes >= 0; flag = 128) {
          byte = B.JSInt_methods._shrReceiverPositive$1(char, 6 * encodedBytes) & 63 | flag;
          if (!(index < t1))
            return A.ioore(codeUnits, index);
          codeUnits[index] = 37;
          t2 = index + 1;
          t3 = byte >>> 4;
          if (!(t3 < 16))
            return A.ioore(_s16_, t3);
          if (!(t2 < t1))
            return A.ioore(codeUnits, t2);
          codeUnits[t2] = _s16_.charCodeAt(t3);
          t3 = index + 2;
          if (!(t3 < t1))
            return A.ioore(codeUnits, t3);
          codeUnits[t3] = _s16_.charCodeAt(byte & 15);
          index += 3;
        }
      }
      return A.String_String$fromCharCodes(codeUnits, 0, null);
    },
    _Uri__normalizeOrSubstring(component, start, end, charTable, escapeDelimiters, replaceBackslash) {
      var t1 = A._Uri__normalize(component, start, end, charTable, escapeDelimiters, replaceBackslash);
      return t1 == null ? B.JSString_methods.substring$2(component, start, end) : t1;
    },
    _Uri__normalize(component, start, end, charTable, escapeDelimiters, replaceBackslash) {
      var t1, t2, index, sectionStart, buffer, char, t3, replacement, sourceLength, tail, t4, _null = null;
      for (t1 = !escapeDelimiters, t2 = component.length, index = start, sectionStart = index, buffer = _null; index < end;) {
        if (!(index >= 0 && index < t2))
          return A.ioore(component, index);
        char = component.charCodeAt(index);
        if (char < 127) {
          t3 = char >>> 4;
          if (!(t3 < 8))
            return A.ioore(charTable, t3);
          t3 = (charTable[t3] & 1 << (char & 15)) !== 0;
        } else
          t3 = false;
        if (t3)
          ++index;
        else {
          if (char === 37) {
            replacement = A._Uri__normalizeEscape(component, index, false);
            if (replacement == null) {
              index += 3;
              continue;
            }
            if ("%" === replacement) {
              replacement = "%25";
              sourceLength = 1;
            } else
              sourceLength = 3;
          } else if (char === 92 && replaceBackslash) {
            replacement = "/";
            sourceLength = 1;
          } else {
            if (t1)
              if (char <= 93) {
                t3 = char >>> 4;
                if (!(t3 < 8))
                  return A.ioore(B.List_YmH, t3);
                t3 = (B.List_YmH[t3] & 1 << (char & 15)) !== 0;
              } else
                t3 = false;
            else
              t3 = false;
            if (t3) {
              A._Uri__fail(component, index, "Invalid character");
              sourceLength = _null;
              replacement = sourceLength;
            } else {
              if ((char & 64512) === 55296) {
                t3 = index + 1;
                if (t3 < end) {
                  if (!(t3 < t2))
                    return A.ioore(component, t3);
                  tail = component.charCodeAt(t3);
                  if ((tail & 64512) === 56320) {
                    char = (char & 1023) << 10 | tail & 1023 | 65536;
                    sourceLength = 2;
                  } else
                    sourceLength = 1;
                } else
                  sourceLength = 1;
              } else
                sourceLength = 1;
              replacement = A._Uri__escapeChar(char);
            }
          }
          if (buffer == null) {
            buffer = new A.StringBuffer("");
            t3 = buffer;
          } else
            t3 = buffer;
          t4 = t3._contents += B.JSString_methods.substring$2(component, sectionStart, index);
          t3._contents = t4 + A.S(replacement);
          if (typeof sourceLength !== "number")
            return A.iae(sourceLength);
          index += sourceLength;
          sectionStart = index;
        }
      }
      if (buffer == null)
        return _null;
      if (sectionStart < end)
        buffer._contents += B.JSString_methods.substring$2(component, sectionStart, end);
      t1 = buffer._contents;
      return t1.charCodeAt(0) == 0 ? t1 : t1;
    },
    _Uri__mayContainDotSegments(path) {
      if (B.JSString_methods.startsWith$1(path, "."))
        return true;
      return B.JSString_methods.indexOf$1(path, "/.") !== -1;
    },
    _Uri__removeDotSegments(path) {
      var output, t1, t2, appendSlash, _i, segment, t3;
      if (!A._Uri__mayContainDotSegments(path))
        return path;
      output = A._setArrayType([], type$.JSArray_String);
      for (t1 = path.split("/"), t2 = t1.length, appendSlash = false, _i = 0; _i < t2; ++_i) {
        segment = t1[_i];
        if (J.$eq$(segment, "..")) {
          t3 = output.length;
          if (t3 !== 0) {
            if (0 >= t3)
              return A.ioore(output, -1);
            output.pop();
            if (output.length === 0)
              B.JSArray_methods.add$1(output, "");
          }
          appendSlash = true;
        } else if ("." === segment)
          appendSlash = true;
        else {
          B.JSArray_methods.add$1(output, segment);
          appendSlash = false;
        }
      }
      if (appendSlash)
        B.JSArray_methods.add$1(output, "");
      return B.JSArray_methods.join$1(output, "/");
    },
    _Uri__normalizeRelativePath(path, allowScheme) {
      var output, t1, t2, appendSlash, _i, segment;
      if (!A._Uri__mayContainDotSegments(path))
        return !allowScheme ? A._Uri__escapeScheme(path) : path;
      output = A._setArrayType([], type$.JSArray_String);
      for (t1 = path.split("/"), t2 = t1.length, appendSlash = false, _i = 0; _i < t2; ++_i) {
        segment = t1[_i];
        if (".." === segment)
          if (output.length !== 0 && B.JSArray_methods.get$last(output) !== "..") {
            if (0 >= output.length)
              return A.ioore(output, -1);
            output.pop();
            appendSlash = true;
          } else {
            B.JSArray_methods.add$1(output, "..");
            appendSlash = false;
          }
        else if ("." === segment)
          appendSlash = true;
        else {
          B.JSArray_methods.add$1(output, segment);
          appendSlash = false;
        }
      }
      t1 = output.length;
      if (t1 !== 0)
        if (t1 === 1) {
          if (0 >= t1)
            return A.ioore(output, 0);
          t1 = output[0].length === 0;
        } else
          t1 = false;
      else
        t1 = true;
      if (t1)
        return "./";
      if (appendSlash || B.JSArray_methods.get$last(output) === "..")
        B.JSArray_methods.add$1(output, "");
      if (!allowScheme) {
        if (0 >= output.length)
          return A.ioore(output, 0);
        B.JSArray_methods.$indexSet(output, 0, A._Uri__escapeScheme(output[0]));
      }
      return B.JSArray_methods.join$1(output, "/");
    },
    _Uri__escapeScheme(path) {
      var i, char, t2,
        t1 = path.length;
      if (t1 >= 2 && A._Uri__isAlphabeticCharacter(path.charCodeAt(0)))
        for (i = 1; i < t1; ++i) {
          char = path.charCodeAt(i);
          if (char === 58)
            return B.JSString_methods.substring$2(path, 0, i) + "%3A" + B.JSString_methods.substring$1(path, i + 1);
          if (char <= 127) {
            t2 = char >>> 4;
            if (!(t2 < 8))
              return A.ioore(B.List_MMm, t2);
            t2 = (B.List_MMm[t2] & 1 << (char & 15)) === 0;
          } else
            t2 = true;
          if (t2)
            break;
        }
      return path;
    },
    _Uri__hexCharPairToByte(s, pos) {
      var t1, byte, i, t2, charCode;
      for (t1 = s.length, byte = 0, i = 0; i < 2; ++i) {
        t2 = pos + i;
        if (!(t2 < t1))
          return A.ioore(s, t2);
        charCode = s.charCodeAt(t2);
        if (48 <= charCode && charCode <= 57)
          byte = byte * 16 + charCode - 48;
        else {
          charCode |= 32;
          if (97 <= charCode && charCode <= 102)
            byte = byte * 16 + charCode - 87;
          else
            throw A.wrapException(A.ArgumentError$("Invalid URL encoding", null));
        }
      }
      return byte;
    },
    _Uri__uriDecode(text, start, end, encoding, plusToSpace) {
      var simple, codeUnit, t2, bytes,
        t1 = text.length,
        i = start;
      while (true) {
        if (!(i < end)) {
          simple = true;
          break;
        }
        if (!(i < t1))
          return A.ioore(text, i);
        codeUnit = text.charCodeAt(i);
        if (codeUnit <= 127)
          if (codeUnit !== 37)
            t2 = false;
          else
            t2 = true;
        else
          t2 = true;
        if (t2) {
          simple = false;
          break;
        }
        ++i;
      }
      if (simple) {
        if (B.C_Utf8Codec !== encoding)
          t1 = false;
        else
          t1 = true;
        if (t1)
          return B.JSString_methods.substring$2(text, start, end);
        else
          bytes = new A.CodeUnits(B.JSString_methods.substring$2(text, start, end));
      } else {
        bytes = A._setArrayType([], type$.JSArray_int);
        for (i = start; i < end; ++i) {
          if (!(i < t1))
            return A.ioore(text, i);
          codeUnit = text.charCodeAt(i);
          if (codeUnit > 127)
            throw A.wrapException(A.ArgumentError$("Illegal percent encoding in URI", null));
          if (codeUnit === 37) {
            if (i + 3 > t1)
              throw A.wrapException(A.ArgumentError$("Truncated URI", null));
            B.JSArray_methods.add$1(bytes, A._Uri__hexCharPairToByte(text, i + 1));
            i += 2;
          } else
            B.JSArray_methods.add$1(bytes, codeUnit);
        }
      }
      type$.List_int._as(bytes);
      return B.Utf8Decoder_false.convert$1(bytes);
    },
    _Uri__isAlphabeticCharacter(codeUnit) {
      var lowerCase = codeUnit | 32;
      return 97 <= lowerCase && lowerCase <= 122;
    },
    UriData__parse(text, start, sourceUri) {
      var t1, i, slashIndex, char, equalsIndex, lastSeparator, t2, data,
        _s17_ = "Invalid MIME type",
        indices = A._setArrayType([start - 1], type$.JSArray_int);
      for (t1 = text.length, i = start, slashIndex = -1, char = null; i < t1; ++i) {
        char = text.charCodeAt(i);
        if (char === 44 || char === 59)
          break;
        if (char === 47) {
          if (slashIndex < 0) {
            slashIndex = i;
            continue;
          }
          throw A.wrapException(A.FormatException$(_s17_, text, i));
        }
      }
      if (slashIndex < 0 && i > start)
        throw A.wrapException(A.FormatException$(_s17_, text, i));
      for (; char !== 44;) {
        B.JSArray_methods.add$1(indices, i);
        ++i;
        for (equalsIndex = -1; i < t1; ++i) {
          if (!(i >= 0))
            return A.ioore(text, i);
          char = text.charCodeAt(i);
          if (char === 61) {
            if (equalsIndex < 0)
              equalsIndex = i;
          } else if (char === 59 || char === 44)
            break;
        }
        if (equalsIndex >= 0)
          B.JSArray_methods.add$1(indices, equalsIndex);
        else {
          lastSeparator = B.JSArray_methods.get$last(indices);
          if (char !== 44 || i !== lastSeparator + 7 || !B.JSString_methods.startsWith$2(text, "base64", lastSeparator + 1))
            throw A.wrapException(A.FormatException$("Expecting '='", text, i));
          break;
        }
      }
      B.JSArray_methods.add$1(indices, i);
      t2 = i + 1;
      if ((indices.length & 1) === 1)
        text = B.C_Base64Codec.normalize$3(text, t2, t1);
      else {
        data = A._Uri__normalize(text, t2, t1, B.List_oFp, true, false);
        if (data != null)
          text = B.JSString_methods.replaceRange$3(text, t2, t1, data);
      }
      return new A.UriData(text, indices, sourceUri);
    },
    _createTables() {
      var _i, t1, t2, t3, t4, t5,
        _s77_ = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-._~!$&'()*+,;=",
        _s1_ = ".", _s1_0 = ":", _s1_1 = "/", _s1_2 = "\\", _s1_3 = "?", _s1_4 = "#", _s2_ = "/\\",
        tables = A._setArrayType(new Array(22), type$.JSArray_Uint8List);
      for (_i = 0; _i < 22; ++_i)
        tables[_i] = new Uint8Array(96);
      t1 = new A._createTables_build(tables);
      t2 = new A._createTables_setChars();
      t3 = new A._createTables_setRange();
      t4 = type$.Uint8List;
      t5 = t4._as(t1.call$2(0, 225));
      t2.call$3(t5, _s77_, 1);
      t2.call$3(t5, _s1_, 14);
      t2.call$3(t5, _s1_0, 34);
      t2.call$3(t5, _s1_1, 3);
      t2.call$3(t5, _s1_2, 227);
      t2.call$3(t5, _s1_3, 172);
      t2.call$3(t5, _s1_4, 205);
      t5 = t4._as(t1.call$2(14, 225));
      t2.call$3(t5, _s77_, 1);
      t2.call$3(t5, _s1_, 15);
      t2.call$3(t5, _s1_0, 34);
      t2.call$3(t5, _s2_, 234);
      t2.call$3(t5, _s1_3, 172);
      t2.call$3(t5, _s1_4, 205);
      t5 = t4._as(t1.call$2(15, 225));
      t2.call$3(t5, _s77_, 1);
      t2.call$3(t5, "%", 225);
      t2.call$3(t5, _s1_0, 34);
      t2.call$3(t5, _s1_1, 9);
      t2.call$3(t5, _s1_2, 233);
      t2.call$3(t5, _s1_3, 172);
      t2.call$3(t5, _s1_4, 205);
      t5 = t4._as(t1.call$2(1, 225));
      t2.call$3(t5, _s77_, 1);
      t2.call$3(t5, _s1_0, 34);
      t2.call$3(t5, _s1_1, 10);
      t2.call$3(t5, _s1_2, 234);
      t2.call$3(t5, _s1_3, 172);
      t2.call$3(t5, _s1_4, 205);
      t5 = t4._as(t1.call$2(2, 235));
      t2.call$3(t5, _s77_, 139);
      t2.call$3(t5, _s1_1, 131);
      t2.call$3(t5, _s1_2, 131);
      t2.call$3(t5, _s1_, 146);
      t2.call$3(t5, _s1_3, 172);
      t2.call$3(t5, _s1_4, 205);
      t5 = t4._as(t1.call$2(3, 235));
      t2.call$3(t5, _s77_, 11);
      t2.call$3(t5, _s1_1, 68);
      t2.call$3(t5, _s1_2, 68);
      t2.call$3(t5, _s1_, 18);
      t2.call$3(t5, _s1_3, 172);
      t2.call$3(t5, _s1_4, 205);
      t5 = t4._as(t1.call$2(4, 229));
      t2.call$3(t5, _s77_, 5);
      t3.call$3(t5, "AZ", 229);
      t2.call$3(t5, _s1_0, 102);
      t2.call$3(t5, "@", 68);
      t2.call$3(t5, "[", 232);
      t2.call$3(t5, _s1_1, 138);
      t2.call$3(t5, _s1_2, 138);
      t2.call$3(t5, _s1_3, 172);
      t2.call$3(t5, _s1_4, 205);
      t5 = t4._as(t1.call$2(5, 229));
      t2.call$3(t5, _s77_, 5);
      t3.call$3(t5, "AZ", 229);
      t2.call$3(t5, _s1_0, 102);
      t2.call$3(t5, "@", 68);
      t2.call$3(t5, _s1_1, 138);
      t2.call$3(t5, _s1_2, 138);
      t2.call$3(t5, _s1_3, 172);
      t2.call$3(t5, _s1_4, 205);
      t5 = t4._as(t1.call$2(6, 231));
      t3.call$3(t5, "19", 7);
      t2.call$3(t5, "@", 68);
      t2.call$3(t5, _s1_1, 138);
      t2.call$3(t5, _s1_2, 138);
      t2.call$3(t5, _s1_3, 172);
      t2.call$3(t5, _s1_4, 205);
      t5 = t4._as(t1.call$2(7, 231));
      t3.call$3(t5, "09", 7);
      t2.call$3(t5, "@", 68);
      t2.call$3(t5, _s1_1, 138);
      t2.call$3(t5, _s1_2, 138);
      t2.call$3(t5, _s1_3, 172);
      t2.call$3(t5, _s1_4, 205);
      t2.call$3(t4._as(t1.call$2(8, 8)), "]", 5);
      t5 = t4._as(t1.call$2(9, 235));
      t2.call$3(t5, _s77_, 11);
      t2.call$3(t5, _s1_, 16);
      t2.call$3(t5, _s2_, 234);
      t2.call$3(t5, _s1_3, 172);
      t2.call$3(t5, _s1_4, 205);
      t5 = t4._as(t1.call$2(16, 235));
      t2.call$3(t5, _s77_, 11);
      t2.call$3(t5, _s1_, 17);
      t2.call$3(t5, _s2_, 234);
      t2.call$3(t5, _s1_3, 172);
      t2.call$3(t5, _s1_4, 205);
      t5 = t4._as(t1.call$2(17, 235));
      t2.call$3(t5, _s77_, 11);
      t2.call$3(t5, _s1_1, 9);
      t2.call$3(t5, _s1_2, 233);
      t2.call$3(t5, _s1_3, 172);
      t2.call$3(t5, _s1_4, 205);
      t5 = t4._as(t1.call$2(10, 235));
      t2.call$3(t5, _s77_, 11);
      t2.call$3(t5, _s1_, 18);
      t2.call$3(t5, _s1_1, 10);
      t2.call$3(t5, _s1_2, 234);
      t2.call$3(t5, _s1_3, 172);
      t2.call$3(t5, _s1_4, 205);
      t5 = t4._as(t1.call$2(18, 235));
      t2.call$3(t5, _s77_, 11);
      t2.call$3(t5, _s1_, 19);
      t2.call$3(t5, _s2_, 234);
      t2.call$3(t5, _s1_3, 172);
      t2.call$3(t5, _s1_4, 205);
      t5 = t4._as(t1.call$2(19, 235));
      t2.call$3(t5, _s77_, 11);
      t2.call$3(t5, _s2_, 234);
      t2.call$3(t5, _s1_3, 172);
      t2.call$3(t5, _s1_4, 205);
      t5 = t4._as(t1.call$2(11, 235));
      t2.call$3(t5, _s77_, 11);
      t2.call$3(t5, _s1_1, 10);
      t2.call$3(t5, _s1_2, 234);
      t2.call$3(t5, _s1_3, 172);
      t2.call$3(t5, _s1_4, 205);
      t5 = t4._as(t1.call$2(12, 236));
      t2.call$3(t5, _s77_, 12);
      t2.call$3(t5, _s1_3, 12);
      t2.call$3(t5, _s1_4, 205);
      t5 = t4._as(t1.call$2(13, 237));
      t2.call$3(t5, _s77_, 13);
      t2.call$3(t5, _s1_3, 13);
      t3.call$3(t4._as(t1.call$2(20, 245)), "az", 21);
      t1 = t4._as(t1.call$2(21, 245));
      t3.call$3(t1, "az", 21);
      t3.call$3(t1, "09", 21);
      t2.call$3(t1, "+-.", 21);
      return tables;
    },
    _scan(uri, start, end, state, indices) {
      var t1, i, table, char, transition,
        tables = $.$get$_scannerTables();
      for (t1 = uri.length, i = start; i < end; ++i) {
        if (!(state >= 0 && state < tables.length))
          return A.ioore(tables, state);
        table = tables[state];
        if (!(i < t1))
          return A.ioore(uri, i);
        char = uri.charCodeAt(i) ^ 96;
        transition = table[char > 95 ? 31 : char];
        state = transition & 31;
        B.JSArray_methods.$indexSet(indices, transition >>> 5, i);
      }
      return state;
    },
    Error: function Error() {
    },
    AssertionError: function AssertionError(t0) {
      this.message = t0;
    },
    TypeError: function TypeError() {
    },
    ArgumentError: function ArgumentError(t0, t1, t2, t3) {
      var _ = this;
      _._hasValue = t0;
      _.invalidValue = t1;
      _.name = t2;
      _.message = t3;
    },
    RangeError: function RangeError(t0, t1, t2, t3, t4, t5) {
      var _ = this;
      _.start = t0;
      _.end = t1;
      _._hasValue = t2;
      _.invalidValue = t3;
      _.name = t4;
      _.message = t5;
    },
    IndexError: function IndexError(t0, t1, t2, t3, t4) {
      var _ = this;
      _.length = t0;
      _._hasValue = t1;
      _.invalidValue = t2;
      _.name = t3;
      _.message = t4;
    },
    UnsupportedError: function UnsupportedError(t0) {
      this.message = t0;
    },
    UnimplementedError: function UnimplementedError(t0) {
      this.message = t0;
    },
    StateError: function StateError(t0) {
      this.message = t0;
    },
    ConcurrentModificationError: function ConcurrentModificationError(t0) {
      this.modifiedObject = t0;
    },
    OutOfMemoryError: function OutOfMemoryError() {
    },
    StackOverflowError: function StackOverflowError() {
    },
    _Exception: function _Exception(t0) {
      this.message = t0;
    },
    FormatException: function FormatException(t0, t1, t2) {
      this.message = t0;
      this.source = t1;
      this.offset = t2;
    },
    Iterable: function Iterable() {
    },
    Null: function Null() {
    },
    Object: function Object() {
    },
    _StringStackTrace: function _StringStackTrace() {
    },
    StringBuffer: function StringBuffer(t0) {
      this._contents = t0;
    },
    Uri__parseIPv4Address_error: function Uri__parseIPv4Address_error(t0) {
      this.host = t0;
    },
    Uri_parseIPv6Address_error: function Uri_parseIPv6Address_error(t0) {
      this.host = t0;
    },
    Uri_parseIPv6Address_parseHex: function Uri_parseIPv6Address_parseHex(t0, t1) {
      this.error = t0;
      this.host = t1;
    },
    _Uri: function _Uri(t0, t1, t2, t3, t4, t5, t6) {
      var _ = this;
      _.scheme = t0;
      _._userInfo = t1;
      _._host = t2;
      _._port = t3;
      _.path = t4;
      _._query = t5;
      _._fragment = t6;
      _.___Uri_hashCode_FI = _.___Uri_pathSegments_FI = _.___Uri__text_FI = $;
    },
    UriData: function UriData(t0, t1, t2) {
      this._text = t0;
      this._separatorIndices = t1;
      this._uriCache = t2;
    },
    _createTables_build: function _createTables_build(t0) {
      this.tables = t0;
    },
    _createTables_setChars: function _createTables_setChars() {
    },
    _createTables_setRange: function _createTables_setRange() {
    },
    _SimpleUri: function _SimpleUri(t0, t1, t2, t3, t4, t5, t6, t7) {
      var _ = this;
      _._uri = t0;
      _._schemeEnd = t1;
      _._hostStart = t2;
      _._portStart = t3;
      _._pathStart = t4;
      _._queryStart = t5;
      _._fragmentStart = t6;
      _._schemeCache = t7;
      _._hashCodeCache = null;
    },
    _DataUri: function _DataUri(t0, t1, t2, t3, t4, t5, t6) {
      var _ = this;
      _.scheme = t0;
      _._userInfo = t1;
      _._host = t2;
      _._port = t3;
      _.path = t4;
      _._query = t5;
      _._fragment = t6;
      _.___Uri_hashCode_FI = _.___Uri_pathSegments_FI = _.___Uri__text_FI = $;
    },
    _noJsifyRequired(o) {
      return o == null || A._isBool(o) || typeof o == "number" || typeof o == "string" || type$.Int8List._is(o) || type$.Uint8List._is(o) || type$.Uint8ClampedList._is(o) || type$.Int16List._is(o) || type$.Uint16List._is(o) || type$.Int32List._is(o) || type$.Uint32List._is(o) || type$.Float32List._is(o) || type$.Float64List._is(o) || type$.ByteBuffer._is(o) || type$.ByteData._is(o);
    },
    jsify(object) {
      if (A._noJsifyRequired(object))
        return object;
      return new A.jsify__convert(new A._IdentityHashMap(type$._IdentityHashMap_of_nullable_Object_and_nullable_Object)).call$1(object);
    },
    promiseToFuture(jsPromise, $T) {
      var t1 = new A._Future($.Zone__current, $T._eval$1("_Future<0>")),
        completer = new A._AsyncCompleter(t1, $T._eval$1("_AsyncCompleter<0>"));
      jsPromise.then(A.convertDartClosureToJS(new A.promiseToFuture_closure(completer, $T), 1), A.convertDartClosureToJS(new A.promiseToFuture_closure0(completer), 1));
      return t1;
    },
    jsify__convert: function jsify__convert(t0) {
      this._convertedObjects = t0;
    },
    promiseToFuture_closure: function promiseToFuture_closure(t0, t1) {
      this.completer = t0;
      this.T = t1;
    },
    promiseToFuture_closure0: function promiseToFuture_closure0(t0) {
      this.completer = t0;
    },
    NullRejectionException: function NullRejectionException(t0) {
      this.isUndefined = t0;
    },
    _validateArgList(method, args) {
      var numArgs, i, numArgs0, message, t1, t2, t3, t4;
      for (numArgs = args.length, i = 1; i < numArgs; ++i) {
        if (args[i] == null || args[i - 1] != null)
          continue;
        for (; numArgs >= 1; numArgs = numArgs0) {
          numArgs0 = numArgs - 1;
          if (args[numArgs0] != null)
            break;
        }
        message = new A.StringBuffer("");
        t1 = "" + (method + "(");
        message._contents = t1;
        t2 = A._arrayInstanceType(args);
        t3 = t2._eval$1("SubListIterable<1>");
        t4 = new A.SubListIterable(args, 0, numArgs, t3);
        t4.SubListIterable$3(args, 0, numArgs, t2._precomputed1);
        t3 = t1 + new A.MappedListIterable(t4, t3._eval$1("String(ListIterable.E)")._as(new A._validateArgList_closure()), t3._eval$1("MappedListIterable<ListIterable.E,String>")).join$1(0, ", ");
        message._contents = t3;
        message._contents = t3 + ("): part " + (i - 1) + " was null, but part " + i + " was not.");
        throw A.wrapException(A.ArgumentError$(message.toString$0(0), null));
      }
    },
    Context: function Context(t0) {
      this.style = t0;
    },
    Context_joinAll_closure: function Context_joinAll_closure() {
    },
    _validateArgList_closure: function _validateArgList_closure() {
    },
    InternalStyle: function InternalStyle() {
    },
    ParsedPath_ParsedPath$parse(path, style) {
      var t1, parts, separators, t2, start, i,
        root = style.getRoot$1(path);
      style.isRootRelative$1(path);
      if (root != null)
        path = B.JSString_methods.substring$1(path, root.length);
      t1 = type$.JSArray_String;
      parts = A._setArrayType([], t1);
      separators = A._setArrayType([], t1);
      t1 = path.length;
      if (t1 !== 0) {
        if (0 >= t1)
          return A.ioore(path, 0);
        t2 = style.isSeparator$1(path.charCodeAt(0));
      } else
        t2 = false;
      if (t2) {
        if (0 >= t1)
          return A.ioore(path, 0);
        B.JSArray_methods.add$1(separators, path[0]);
        start = 1;
      } else {
        B.JSArray_methods.add$1(separators, "");
        start = 0;
      }
      for (i = start; i < t1; ++i)
        if (style.isSeparator$1(path.charCodeAt(i))) {
          B.JSArray_methods.add$1(parts, B.JSString_methods.substring$2(path, start, i));
          B.JSArray_methods.add$1(separators, path[i]);
          start = i + 1;
        }
      if (start < t1) {
        B.JSArray_methods.add$1(parts, B.JSString_methods.substring$1(path, start));
        B.JSArray_methods.add$1(separators, "");
      }
      return new A.ParsedPath(root, parts, separators);
    },
    ParsedPath: function ParsedPath(t0, t1, t2) {
      this.root = t0;
      this.parts = t1;
      this.separators = t2;
    },
    Style__getPlatformStyle() {
      var userInfo, host, query, fragment, port, t1, hasAuthority, path, t2, segments, hasDriveLetter, t3, pathSegments, _null = null;
      if (A.Uri_base().get$scheme() !== "file")
        return $.$get$Style_url();
      if (!B.JSString_methods.endsWith$1(A.Uri_base().get$path(), "/"))
        return $.$get$Style_url();
      userInfo = A._Uri__makeUserInfo(_null, 0, 0);
      host = A._Uri__makeHost(_null, 0, 0, false);
      query = A._Uri__makeQuery(_null, 0, 0, _null);
      fragment = A._Uri__makeFragment(_null, 0, 0);
      port = A._Uri__makePort(_null, "");
      if (host == null)
        t1 = userInfo.length !== 0 || port != null || false;
      else
        t1 = false;
      if (t1)
        host = "";
      t1 = host == null;
      hasAuthority = !t1;
      path = A._Uri__makePath("a/b", 0, 3, _null, "", hasAuthority);
      if (t1 && !B.JSString_methods.startsWith$1(path, "/"))
        path = A._Uri__normalizeRelativePath(path, hasAuthority);
      else
        path = A._Uri__removeDotSegments(path);
      t2 = A._Uri$_internal("", userInfo, t1 && B.JSString_methods.startsWith$1(path, "//") ? "" : host, port, path, query, fragment);
      t1 = t2.scheme;
      if (t1 !== "" && t1 !== "file")
        A.throwExpression(A.UnsupportedError$("Cannot extract a file path from a " + t1 + " URI"));
      t1 = t2._query;
      if ((t1 == null ? "" : t1) !== "")
        A.throwExpression(A.UnsupportedError$("Cannot extract a file path from a URI with a query component"));
      t1 = t2._fragment;
      if ((t1 == null ? "" : t1) !== "")
        A.throwExpression(A.UnsupportedError$("Cannot extract a file path from a URI with a fragment component"));
      t1 = $.$get$_Uri__isWindowsCached();
      if (t1) {
        segments = t2.get$pathSegments();
        t1 = segments.length;
        if (t1 > 0 && J.get$length$asx(segments[0]) === 2 && J.codeUnitAt$1$s(segments[0], 1) === 58) {
          if (0 >= t1)
            return A.ioore(segments, 0);
          A._Uri__checkWindowsDriveLetter(J.codeUnitAt$1$s(segments[0], 0), false);
          A._Uri__checkWindowsPathReservedCharacters(segments, false, 1);
          hasDriveLetter = true;
        } else {
          A._Uri__checkWindowsPathReservedCharacters(segments, false, 0);
          hasDriveLetter = false;
        }
        t3 = B.JSString_methods.startsWith$1(t2.path, "/") && !hasDriveLetter ? "" + "\\" : "";
        if (t2._host != null) {
          host = t2.get$host();
          t2 = host.length !== 0 ? t3 + "\\" + host + "\\" : t3;
        } else
          t2 = t3;
        t2 = A.StringBuffer__writeAll(t2, segments, "\\");
        t1 = hasDriveLetter && t1 === 1 ? t2 + "\\" : t2;
        t1 = t1.charCodeAt(0) == 0 ? t1 : t1;
      } else {
        if (t2._host != null && t2.get$host() !== "")
          A.throwExpression(A.UnsupportedError$("Cannot extract a non-Windows file path from a file URI with an authority"));
        pathSegments = t2.get$pathSegments();
        A._Uri__checkNonWindowsPathReservedCharacters(pathSegments, false);
        t1 = A.StringBuffer__writeAll(B.JSString_methods.startsWith$1(t2.path, "/") ? "" + "/" : "", pathSegments, "/");
        t1 = t1.charCodeAt(0) == 0 ? t1 : t1;
      }
      if (t1 === "a\\b")
        return $.$get$Style_windows();
      return $.$get$Style_posix();
    },
    Style: function Style() {
    },
    PosixStyle: function PosixStyle(t0, t1, t2) {
      this.separatorPattern = t0;
      this.needsSeparatorPattern = t1;
      this.rootPattern = t2;
    },
    UrlStyle: function UrlStyle(t0, t1, t2, t3) {
      var _ = this;
      _.separatorPattern = t0;
      _.needsSeparatorPattern = t1;
      _.rootPattern = t2;
      _.relativeRootPattern = t3;
    },
    WindowsStyle: function WindowsStyle(t0, t1, t2, t3) {
      var _ = this;
      _.separatorPattern = t0;
      _.needsSeparatorPattern = t1;
      _.rootPattern = t2;
      _.relativeRootPattern = t3;
    },
    throwLateFieldADI(fieldName) {
      A.throwExpressionWithWrapper(new A.LateError("Field '" + fieldName + "' has been assigned during initialization."), new Error());
    },
    join(part1, part2) {
      var t1 = $.$get$context(),
        parts = A._setArrayType([part1, part2, null, null, null, null, null, null, null, null, null, null, null, null, null, null], type$.JSArray_nullable_String);
      A._validateArgList("join", parts);
      return t1.joinAll$1(new A.WhereTypeIterable(parts, type$.WhereTypeIterable_String));
    },
    isAlphabetic(char) {
      var t1;
      if (!(char >= 65 && char <= 90))
        t1 = char >= 97 && char <= 122;
      else
        t1 = true;
      return t1;
    },
    isDriveLetter(path, index) {
      var t3,
        t1 = path.length,
        t2 = index + 2;
      if (t1 < t2)
        return false;
      if (!(index >= 0 && index < t1))
        return A.ioore(path, index);
      if (!A.isAlphabetic(path.charCodeAt(index)))
        return false;
      t3 = index + 1;
      if (!(t3 < t1))
        return A.ioore(path, t3);
      if (path.charCodeAt(t3) !== 58)
        return false;
      if (t1 === t2)
        return true;
      if (!(t2 >= 0 && t2 < t1))
        return A.ioore(path, t2);
      return path.charCodeAt(t2) === 47;
    },
    main(args) {
      return A.main$body(args);
    },
    main$body(args) {
      var $async$goto = 0,
        $async$completer = A._makeAsyncAwaitCompleter(type$.dynamic),
        $async$returnValue, $async$handler = 2, $async$currentError, sdk, flavor, raw, os, architecture, version, channel, url, toolName, sdkPath, archivePath, extractedFolder, pubCache, error, t1, t2, exception, t3, t4, versionFilePath, $async$exception, $async$exception1;
      var $async$main = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
        if ($async$errorCode === 1) {
          $async$currentError = $async$result;
          $async$goto = $async$handler;
        }
        while (true)
          switch ($async$goto) {
            case 0:
              // Function start
              $async$handler = 4;
              t1 = self;
              t2 = type$.JSObject;
              sdk = A._asString(t2._as(t1.core).getInput("sdk"));
              if (J.get$length$asx(sdk) === 0)
                sdk = "stable";
              flavor = A._asString(t2._as(t1.core).getInput("flavor"));
              if (J.get$length$asx(flavor) === 0)
                flavor = J.$eq$(sdk, "main") ? "raw" : "release";
              else if (!J.$eq$(flavor, "raw") && !J.$eq$(flavor, "release")) {
                t2._as(t1.core).setFailed("Unrecognized build flavor '" + A.S(flavor) + "'.");
                // goto return
                $async$goto = 1;
                break;
              }
              raw = J.$eq$(flavor, "raw");
              os = A.getPlatform();
              architecture = A._asString(t2._as(t1.core).getInput("architecture"));
              if (J.get$length$asx(architecture) === 0)
                architecture = B.JSArray_methods.contains$1(B.List_x64_ia32_arm_arm64, A._asString(t2._as(t1.os).arch())) ? A._asString(t2._as(t1.os).arch()) : "x64";
              version = null;
              channel = null;
              $async$goto = J.$eq$(sdk, "stable") || J.$eq$(sdk, "beta") || J.$eq$(sdk, "dev") ? 7 : 9;
              break;
            case 7:
              // then
              channel = sdk;
              $async$goto = A.boolConversionCheck(raw) ? 10 : 12;
              break;
            case 10:
              // then
              $async$result = "latest";
              // goto join
              $async$goto = 11;
              break;
            case 12:
              // else
              $async$goto = 13;
              return A._asyncAwait(A.latestPublishedVersion(channel, flavor), $async$main);
            case 13:
              // returning from await.
            case 11:
              // join
              version = $async$result;
              // goto join
              $async$goto = 8;
              break;
            case 9:
              // else
              $async$goto = J.$eq$(sdk, "main") ? 14 : 16;
              break;
            case 14:
              // then
              $async$handler = 18;
              channel = "main";
              $async$goto = 21;
              return A._asyncAwait(A.latestPublishedVersion(channel, flavor), $async$main);
            case 21:
              // returning from await.
              $async$handler = 4;
              // goto after finally
              $async$goto = 20;
              break;
            case 18:
              // catch
              $async$handler = 17;
              $async$exception = $async$currentError;
              channel = "be";
              // goto after finally
              $async$goto = 20;
              break;
            case 17:
              // uncaught
              // goto catch
              $async$goto = 4;
              break;
            case 20:
              // after finally
              version = "latest";
              // goto join
              $async$goto = 15;
              break;
            case 16:
              // else
              version = sdk;
              if (J.contains$1$asx(sdk, "dev"))
                channel = "dev";
              else if (J.contains$1$asx(sdk, "beta"))
                channel = "beta";
              else if (J.contains$1$asx(sdk, "main")) {
                t2._as(t1.core).setFailed("Versions cannot be specified for main channel builds.");
                // goto return
                $async$goto = 1;
                break;
              } else
                channel = "stable";
            case 15:
              // join
            case 8:
              // join
              t2._as(t1.core).info("Installing the " + A.S(os) + "-" + A.S(architecture) + " Dart SDK version " + A.S(version) + " from the " + A.S(channel) + " (" + A.S(flavor) + ") channel.");
              url = string$.https_ + A.S(channel) + "/" + A.S(flavor) + "/" + A.S(version) + "/sdk/dartsdk-" + A.S(os) + "-" + A.S(architecture) + "-release.zip";
              toolName = A.boolConversionCheck(raw) ? "dart_raw" : "dart";
              sdkPath = !A.boolConversionCheck(raw) ? A._asString(t2._as(t1.toolCache).find(toolName, version, architecture)) : "";
              $async$goto = J.get$length$asx(sdkPath) !== 0 ? 22 : 24;
              break;
            case 22:
              // then
              t2._as(t1.core).info("Using cached sdk from " + A.S(sdkPath) + ".");
              // goto join
              $async$goto = 23;
              break;
            case 24:
              // else
              t2._as(t1.core).info(A.S(url) + " ...");
              t3 = type$.String;
              $async$goto = 25;
              return A._asyncAwait(A.promiseToFuture(t2._as(t2._as(t1.toolCache).downloadTool(url)), t3), $async$main);
            case 25:
              // returning from await.
              archivePath = $async$result;
              $async$goto = 26;
              return A._asyncAwait(A.promiseToFuture(t2._as(t2._as(t1.toolCache).extractZip(archivePath)), t3), $async$main);
            case 26:
              // returning from await.
              extractedFolder = $async$result;
              extractedFolder = A.join(extractedFolder, "dart-sdk");
              $async$goto = 27;
              return A._asyncAwait(A.promiseToFuture(t2._as(t2._as(t1.toolCache).cacheDir(extractedFolder, toolName, version, architecture)), t3), $async$main);
            case 27:
              // returning from await.
              sdkPath = $async$result;
            case 23:
              // join
              t3 = t2._as(t1.process);
              t4 = J.$eq$(os, "windows") ? "USERPROFILE" : "HOME";
              t4 = A._asStringQ(t2._as(t3.env)[t4]);
              t4.toString;
              pubCache = A.join(t4, ".pub-cache");
              t2._as(t1.core).exportVariable("DART_HOME", sdkPath);
              t2._as(t1.core).addPath(A.join(sdkPath, "bin"));
              t2._as(t1.core).exportVariable("PUB_CACHE", pubCache);
              t2._as(t1.core).addPath(A.join(pubCache, "bin"));
              $async$goto = 28;
              return A._asyncAwait(A.createPubOIDCToken(), $async$main);
            case 28:
              // returning from await.
              if (A.boolConversionCheck(raw)) {
                t3 = t2._as(t1.core);
                versionFilePath = A.join(sdkPath, "version");
                t3.setOutput("dart-version", B.JSString_methods.trim$0(A._asString(t2._as(t1.fs).readFileSync(versionFilePath, "utf8"))));
              } else
                t2._as(t1.core).setOutput("dart-version", version);
              $async$goto = 29;
              return A._asyncAwait(A.promiseToFuture(t2._as(t2._as(t1.exec).exec("dart", A._setArrayType(["--version"], type$.JSArray_String))), type$.dynamic), $async$main);
            case 29:
              // returning from await.
              $async$handler = 2;
              // goto after finally
              $async$goto = 6;
              break;
            case 4:
              // catch
              $async$handler = 3;
              $async$exception1 = $async$currentError;
              error = A.unwrapException($async$exception1);
              t1 = self;
              type$.JSObject._as(t1.core).setFailed(A.S(error));
              // goto after finally
              $async$goto = 6;
              break;
            case 3:
              // uncaught
              // goto rethrow
              $async$goto = 2;
              break;
            case 6:
              // after finally
            case 1:
              // return
              return A._asyncReturn($async$returnValue, $async$completer);
            case 2:
              // rethrow
              return A._asyncRethrow($async$currentError, $async$completer);
          }
      });
      return A._asyncStartSync($async$main, $async$completer);
    },
    getPlatform() {
      var t1,
        _0_0 = A._asString(type$.JSObject._as(self.os).platform());
      $label0$0: {
        if ("win32" === _0_0) {
          t1 = "windows";
          break $label0$0;
        }
        if ("darwin" === _0_0) {
          t1 = "macos";
          break $label0$0;
        }
        t1 = "linux";
        break $label0$0;
      }
      return t1;
    },
    createPubOIDCToken() {
      var $async$goto = 0,
        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
        $async$returnValue, token, t1, t2, tokenRequestUrl, tokenRequestToken;
      var $async$createPubOIDCToken = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
        if ($async$errorCode === 1)
          return A._asyncRethrow($async$result, $async$completer);
        while (true)
          switch ($async$goto) {
            case 0:
              // Function start
              t1 = self;
              t2 = type$.JSObject;
              tokenRequestUrl = A._asStringQ(t2._as(t2._as(t1.process).env).ACTIONS_ID_TOKEN_REQUEST_URL);
              tokenRequestToken = A._asStringQ(t2._as(t2._as(t1.process).env).ACTIONS_ID_TOKEN_REQUEST_TOKEN);
              if (tokenRequestUrl == null || tokenRequestToken == null) {
                // goto return
                $async$goto = 1;
                break;
              }
              $async$goto = 3;
              return A._asyncAwait(A.promiseToFuture(t2._as(t2._as(t1.core).getIDToken("https://pub.dev")), type$.String), $async$createPubOIDCToken);
            case 3:
              // returning from await.
              token = $async$result;
              t2._as(t1.core).exportVariable("PUB_TOKEN", token);
              $async$goto = 4;
              return A._asyncAwait(A.promiseToFuture(t2._as(t2._as(t1.exec).exec("dart", A._setArrayType(["pub", "token", "add", "https://pub.dev", "--env-var", "PUB_TOKEN"], type$.JSArray_String))), type$.dynamic), $async$createPubOIDCToken);
            case 4:
              // returning from await.
            case 1:
              // return
              return A._asyncReturn($async$returnValue, $async$completer);
          }
      });
      return A._asyncStartSync($async$createPubOIDCToken, $async$completer);
    },
    latestPublishedVersion(channel, flavor) {
      var $async$goto = 0,
        $async$completer = A._makeAsyncAwaitCompleter(type$.String),
        $async$returnValue, t1, $async$temp1, $async$temp2;
      var $async$latestPublishedVersion = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
        if ($async$errorCode === 1)
          return A._asyncRethrow($async$result, $async$completer);
        while (true)
          switch ($async$goto) {
            case 0:
              // Function start
              t1 = type$.JSObject;
              $async$temp1 = type$.FutureOr_String;
              $async$temp2 = t1;
              $async$goto = 3;
              return A._asyncAwait(A.promiseToFuture(t1._as(t1._as(new self.HttpClient("setup-dart", A._setArrayType([], type$.JSArray_Object), type$.nullable_JSObject._as(A.jsify(A.LinkedHashMap_LinkedHashMap$_literal(["allowRedirects", true, "maxRedirects", 3, "allowRetries", true, "maxRetries", 3], type$.String, type$.Object))))).getJson(string$.https_ + channel + "/" + flavor + "/latest/VERSION")), t1), $async$latestPublishedVersion);
            case 3:
              // returning from await.
              $async$returnValue = $async$temp1._as($async$temp2._as($async$result.result).version);
              // goto return
              $async$goto = 1;
              break;
            case 1:
              // return
              return A._asyncReturn($async$returnValue, $async$completer);
          }
      });
      return A._asyncStartSync($async$latestPublishedVersion, $async$completer);
    }
  },
  J = {
    makeDispatchRecord(interceptor, proto, extension, indexability) {
      return {i: interceptor, p: proto, e: extension, x: indexability};
    },
    getNativeInterceptor(object) {
      var proto, objectProto, $constructor, interceptor, t1,
        record = object[init.dispatchPropertyName];
      if (record == null)
        if ($.initNativeDispatchFlag == null) {
          A.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)
          throw A.wrapException(A.UnimplementedError$("Return interceptor for " + A.S(proto(object, record))));
      }
      $constructor = object.constructor;
      if ($constructor == null)
        interceptor = null;
      else {
        t1 = $._JS_INTEROP_INTERCEPTOR_TAG;
        if (t1 == null)
          t1 = $._JS_INTEROP_INTERCEPTOR_TAG = init.getIsolateTag("_$dart_js");
        interceptor = $constructor[t1];
      }
      if (interceptor != null)
        return interceptor;
      interceptor = A.lookupAndCacheInterceptor(object);
      if (interceptor != null)
        return interceptor;
      if (typeof object == "function")
        return B.JavaScriptFunction_methods;
      proto = Object.getPrototypeOf(object);
      if (proto == null)
        return B.PlainJavaScriptObject_methods;
      if (proto === Object.prototype)
        return B.PlainJavaScriptObject_methods;
      if (typeof $constructor == "function") {
        t1 = $._JS_INTEROP_INTERCEPTOR_TAG;
        if (t1 == null)
          t1 = $._JS_INTEROP_INTERCEPTOR_TAG = init.getIsolateTag("_$dart_js");
        Object.defineProperty($constructor, t1, {value: B.UnknownJavaScriptObject_methods, enumerable: false, writable: true, configurable: true});
        return B.UnknownJavaScriptObject_methods;
      }
      return B.UnknownJavaScriptObject_methods;
    },
    JSArray_markFixedList(list, $T) {
      list.fixed$length = Array;
      return list;
    },
    JSString__isWhitespace(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 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;
      }
    },
    JSString__skipLeadingWhitespace(string, index) {
      var t1, codeUnit;
      for (t1 = string.length; index < t1;) {
        codeUnit = string.charCodeAt(index);
        if (codeUnit !== 32 && codeUnit !== 13 && !J.JSString__isWhitespace(codeUnit))
          break;
        ++index;
      }
      return index;
    },
    JSString__skipTrailingWhitespace(string, index) {
      var t1, index0, codeUnit;
      for (t1 = string.length; index > 0; index = index0) {
        index0 = index - 1;
        if (!(index0 < t1))
          return A.ioore(string, index0);
        codeUnit = string.charCodeAt(index0);
        if (codeUnit !== 32 && codeUnit !== 13 && !J.JSString__isWhitespace(codeUnit))
          break;
      }
      return index;
    },
    getInterceptor$(receiver) {
      if (typeof receiver == "number") {
        if (Math.floor(receiver) == receiver)
          return J.JSInt.prototype;
        return J.JSNumNotInt.prototype;
      }
      if (typeof receiver == "string")
        return J.JSString.prototype;
      if (receiver == null)
        return J.JSNull.prototype;
      if (typeof receiver == "boolean")
        return J.JSBool.prototype;
      if (Array.isArray(receiver))
        return J.JSArray.prototype;
      if (typeof receiver != "object") {
        if (typeof receiver == "function")
          return J.JavaScriptFunction.prototype;
        if (typeof receiver == "symbol")
          return J.JavaScriptSymbol.prototype;
        if (typeof receiver == "bigint")
          return J.JavaScriptBigInt.prototype;
        return receiver;
      }
      if (receiver instanceof A.Object)
        return receiver;
      return J.getNativeInterceptor(receiver);
    },
    getInterceptor$asx(receiver) {
      if (typeof receiver == "string")
        return J.JSString.prototype;
      if (receiver == null)
        return receiver;
      if (Array.isArray(receiver))
        return J.JSArray.prototype;
      if (typeof receiver != "object") {
        if (typeof receiver == "function")
          return J.JavaScriptFunction.prototype;
        if (typeof receiver == "symbol")
          return J.JavaScriptSymbol.prototype;
        if (typeof receiver == "bigint")
          return J.JavaScriptBigInt.prototype;
        return receiver;
      }
      if (receiver instanceof A.Object)
        return receiver;
      return J.getNativeInterceptor(receiver);
    },
    getInterceptor$ax(receiver) {
      if (receiver == null)
        return receiver;
      if (Array.isArray(receiver))
        return J.JSArray.prototype;
      if (typeof receiver != "object") {
        if (typeof receiver == "function")
          return J.JavaScriptFunction.prototype;
        if (typeof receiver == "symbol")
          return J.JavaScriptSymbol.prototype;
        if (typeof receiver == "bigint")
          return J.JavaScriptBigInt.prototype;
        return receiver;
      }
      if (receiver instanceof A.Object)
        return receiver;
      return J.getNativeInterceptor(receiver);
    },
    getInterceptor$s(receiver) {
      if (typeof receiver == "string")
        return J.JSString.prototype;
      if (receiver == null)
        return receiver;
      if (!(receiver instanceof A.Object))
        return J.UnknownJavaScriptObject.prototype;
      return receiver;
    },
    get$hashCode$(receiver) {
      return J.getInterceptor$(receiver).get$hashCode(receiver);
    },
    get$iterator$ax(receiver) {
      return J.getInterceptor$ax(receiver).get$iterator(receiver);
    },
    get$length$asx(receiver) {
      return J.getInterceptor$asx(receiver).get$length(receiver);
    },
    get$runtimeType$(receiver) {
      return J.getInterceptor$(receiver).get$runtimeType(receiver);
    },
    $eq$(receiver, a0) {
      if (receiver == null)
        return a0 == null;
      if (typeof receiver != "object")
        return a0 != null && receiver === a0;
      return J.getInterceptor$(receiver).$eq(receiver, a0);
    },
    allMatches$1$s(receiver, a0) {
      return J.getInterceptor$s(receiver).allMatches$1(receiver, a0);
    },
    codeUnitAt$1$s(receiver, a0) {
      return J.getInterceptor$s(receiver).codeUnitAt$1(receiver, a0);
    },
    contains$1$asx(receiver, a0) {
      return J.getInterceptor$asx(receiver).contains$1(receiver, a0);
    },
    elementAt$1$ax(receiver, a0) {
      return J.getInterceptor$ax(receiver).elementAt$1(receiver, a0);
    },
    map$1$1$ax(receiver, a0, $T1) {
      return J.getInterceptor$ax(receiver).map$1$1(receiver, a0, $T1);
    },
    toString$0$(receiver) {
      return J.getInterceptor$(receiver).toString$0(receiver);
    },
    Interceptor: function Interceptor() {
    },
    JSBool: function JSBool() {
    },
    JSNull: function JSNull() {
    },
    JavaScriptObject: function JavaScriptObject() {
    },
    LegacyJavaScriptObject: function LegacyJavaScriptObject() {
    },
    PlainJavaScriptObject: function PlainJavaScriptObject() {
    },
    UnknownJavaScriptObject: function UnknownJavaScriptObject() {
    },
    JavaScriptFunction: function JavaScriptFunction() {
    },
    JavaScriptBigInt: function JavaScriptBigInt() {
    },
    JavaScriptSymbol: function JavaScriptSymbol() {
    },
    JSArray: function JSArray(t0) {
      this.$ti = t0;
    },
    JSUnmodifiableArray: function JSUnmodifiableArray(t0) {
      this.$ti = t0;
    },
    ArrayIterator: function ArrayIterator(t0, t1, t2) {
      var _ = this;
      _._iterable = t0;
      _._length = t1;
      _._index = 0;
      _._current = null;
      _.$ti = t2;
    },
    JSNumber: function JSNumber() {
    },
    JSInt: function JSInt() {
    },
    JSNumNotInt: function JSNumNotInt() {
    },
    JSString: function JSString() {
    }
  },
  B = {};
  var holders = [A, J, B];
  var $ = {};
  A.JS_CONST.prototype = {};
  J.Interceptor.prototype = {
    $eq(receiver, other) {
      return receiver === other;
    },
    get$hashCode(receiver) {
      return A.Primitives_objectHashCode(receiver);
    },
    toString$0(receiver) {
      return "Instance of '" + A.Primitives_objectTypeName(receiver) + "'";
    },
    get$runtimeType(receiver) {
      return A.createRuntimeType(A._instanceTypeFromConstructor(this));
    }
  };
  J.JSBool.prototype = {
    toString$0(receiver) {
      return String(receiver);
    },
    get$hashCode(receiver) {
      return receiver ? 519018 : 218159;
    },
    get$runtimeType(receiver) {
      return A.createRuntimeType(type$.bool);
    },
    $isTrustedGetRuntimeType: 1,
    $isbool: 1
  };
  J.JSNull.prototype = {
    $eq(receiver, other) {
      return null == other;
    },
    toString$0(receiver) {
      return "null";
    },
    get$hashCode(receiver) {
      return 0;
    },
    $isTrustedGetRuntimeType: 1,
    $isNull: 1
  };
  J.JavaScriptObject.prototype = {$isJSObject: 1};
  J.LegacyJavaScriptObject.prototype = {
    get$hashCode(receiver) {
      return 0;
    },
    toString$0(receiver) {
      return String(receiver);
    }
  };
  J.PlainJavaScriptObject.prototype = {};
  J.UnknownJavaScriptObject.prototype = {};
  J.JavaScriptFunction.prototype = {
    toString$0(receiver) {
      var dartClosure = receiver[$.$get$DART_CLOSURE_PROPERTY_NAME()];
      if (dartClosure == null)
        return this.super$LegacyJavaScriptObject$toString(receiver);
      return "JavaScript function for " + J.toString$0$(dartClosure);
    },
    $isFunction: 1
  };
  J.JavaScriptBigInt.prototype = {
    get$hashCode(receiver) {
      return 0;
    },
    toString$0(receiver) {
      return String(receiver);
    }
  };
  J.JavaScriptSymbol.prototype = {
    get$hashCode(receiver) {
      return 0;
    },
    toString$0(receiver) {
      return String(receiver);
    }
  };
  J.JSArray.prototype = {
    add$1(receiver, value) {
      A._arrayInstanceType(receiver)._precomputed1._as(value);
      if (!!receiver.fixed$length)
        A.throwExpression(A.UnsupportedError$("add"));
      receiver.push(value);
    },
    addAll$1(receiver, collection) {
      var t1;
      A._arrayInstanceType(receiver)._eval$1("Iterable<1>")._as(collection);
      if (!!receiver.fixed$length)
        A.throwExpression(A.UnsupportedError$("addAll"));
      for (t1 = collection.get$iterator(collection); t1.moveNext$0();)
        receiver.push(t1.get$current());
    },
    map$1$1(receiver, f, $T) {
      var t1 = A._arrayInstanceType(receiver);
      return new A.MappedListIterable(receiver, t1._bind$1($T)._eval$1("1(2)")._as(f), t1._eval$1("@<1>")._bind$1($T)._eval$1("MappedListIterable<1,2>"));
    },
    join$1(receiver, separator) {
      var i,
        list = A.List_List$filled(receiver.length, "", false, type$.String);
      for (i = 0; i < receiver.length; ++i)
        this.$indexSet(list, i, A.S(receiver[i]));
      return list.join(separator);
    },
    elementAt$1(receiver, index) {
      if (!(index >= 0 && index < receiver.length))
        return A.ioore(receiver, index);
      return receiver[index];
    },
    get$last(receiver) {
      var t1 = receiver.length;
      if (t1 > 0)
        return receiver[t1 - 1];
      throw A.wrapException(A.IterableElementError_noElement());
    },
    contains$1(receiver, other) {
      var i;
      for (i = 0; i < receiver.length; ++i)
        if (J.$eq$(receiver[i], other))
          return true;
      return false;
    },
    toString$0(receiver) {
      return A.Iterable_iterableToFullString(receiver, "[", "]");
    },
    get$iterator(receiver) {
      return new J.ArrayIterator(receiver, receiver.length, A._arrayInstanceType(receiver)._eval$1("ArrayIterator<1>"));
    },
    get$hashCode(receiver) {
      return A.Primitives_objectHashCode(receiver);
    },
    get$length(receiver) {
      return receiver.length;
    },
    $index(receiver, index) {
      if (!(index >= 0 && index < receiver.length))
        throw A.wrapException(A.diagnoseIndexError(receiver, index));
      return receiver[index];
    },
    $indexSet(receiver, index, value) {
      var t1;
      A._arrayInstanceType(receiver)._precomputed1._as(value);
      if (!!receiver.immutable$list)
        A.throwExpression(A.UnsupportedError$("indexed set"));
      t1 = receiver.length;
      if (index >= t1)
        throw A.wrapException(A.diagnoseIndexError(receiver, index));
      receiver[index] = value;
    },
    $isEfficientLengthIterable: 1,
    $isIterable: 1,
    $isList: 1
  };
  J.JSUnmodifiableArray.prototype = {};
  J.ArrayIterator.prototype = {
    get$current() {
      var t1 = this._current;
      return t1 == null ? this.$ti._precomputed1._as(t1) : t1;
    },
    moveNext$0() {
      var t2, _this = this,
        t1 = _this._iterable,
        $length = t1.length;
      if (_this._length !== $length) {
        t1 = A.throwConcurrentModificationError(t1);
        throw A.wrapException(t1);
      }
      t2 = _this._index;
      if (t2 >= $length) {
        _this.set$_current(null);
        return false;
      }
      _this.set$_current(t1[t2]);
      ++_this._index;
      return true;
    },
    set$_current(_current) {
      this._current = this.$ti._eval$1("1?")._as(_current);
    },
    $isIterator: 1
  };
  J.JSNumber.prototype = {
    toString$0(receiver) {
      if (receiver === 0 && 1 / receiver < 0)
        return "-0.0";
      else
        return "" + receiver;
    },
    get$hashCode(receiver) {
      var absolute, floorLog2, factor, scaled,
        intValue = receiver | 0;
      if (receiver === intValue)
        return intValue & 536870911;
      absolute = Math.abs(receiver);
      floorLog2 = Math.log(absolute) / 0.6931471805599453 | 0;
      factor = Math.pow(2, floorLog2);
      scaled = absolute < 1 ? absolute / factor : factor / absolute;
      return ((scaled * 9007199254740992 | 0) + (scaled * 3542243181176521 | 0)) * 599197 + floorLog2 * 1259 & 536870911;
    },
    $mod(receiver, other) {
      var result = receiver % other;
      if (result === 0)
        return 0;
      if (result > 0)
        return result;
      return result + other;
    },
    _tdivFast$1(receiver, other) {
      return (receiver | 0) === receiver ? receiver / other | 0 : this._tdivSlow$1(receiver, other);
    },
    _tdivSlow$1(receiver, other) {
      var quotient = receiver / other;
      if (quotient >= -2147483648 && quotient <= 2147483647)
        return quotient | 0;
      if (quotient > 0) {
        if (quotient !== 1 / 0)
          return Math.floor(quotient);
      } else if (quotient > -1 / 0)
        return Math.ceil(quotient);
      throw A.wrapException(A.UnsupportedError$("Result of truncating division is " + A.S(quotient) + ": " + A.S(receiver) + " ~/ " + other));
    },
    _shrOtherPositive$1(receiver, other) {
      var t1;
      if (receiver > 0)
        t1 = this._shrBothPositive$1(receiver, other);
      else {
        t1 = other > 31 ? 31 : other;
        t1 = receiver >> t1 >>> 0;
      }
      return t1;
    },
    _shrReceiverPositive$1(receiver, other) {
      if (0 > other)
        throw A.wrapException(A.argumentErrorValue(other));
      return this._shrBothPositive$1(receiver, other);
    },
    _shrBothPositive$1(receiver, other) {
      return other > 31 ? 0 : receiver >>> other;
    },
    get$runtimeType(receiver) {
      return A.createRuntimeType(type$.num);
    },
    $isdouble: 1,
    $isnum: 1
  };
  J.JSInt.prototype = {
    get$runtimeType(receiver) {
      return A.createRuntimeType(type$.int);
    },
    $isTrustedGetRuntimeType: 1,
    $isint: 1
  };
  J.JSNumNotInt.prototype = {
    get$runtimeType(receiver) {
      return A.createRuntimeType(type$.double);
    },
    $isTrustedGetRuntimeType: 1
  };
  J.JSString.prototype = {
    codeUnitAt$1(receiver, index) {
      if (index < 0)
        throw A.wrapException(A.diagnoseIndexError(receiver, index));
      if (index >= receiver.length)
        A.throwExpression(A.diagnoseIndexError(receiver, index));
      return receiver.charCodeAt(index);
    },
    allMatches$1(receiver, string) {
      return new A._StringAllMatchesIterable(string, receiver, 0);
    },
    $add(receiver, other) {
      return receiver + other;
    },
    endsWith$1(receiver, other) {
      var otherLength = other.length,
        t1 = receiver.length;
      if (otherLength > t1)
        return false;
      return other === this.substring$1(receiver, t1 - otherLength);
    },
    replaceRange$3(receiver, start, end, replacement) {
      var e = A.RangeError_checkValidRange(start, end, receiver.length);
      return receiver.substring(0, start) + replacement + receiver.substring(e);
    },
    startsWith$2(receiver, pattern, index) {
      var endIndex;
      if (index < 0 || index > receiver.length)
        throw A.wrapException(A.RangeError$range(index, 0, receiver.length, null, null));
      endIndex = index + pattern.length;
      if (endIndex > receiver.length)
        return false;
      return pattern === receiver.substring(index, endIndex);
    },
    startsWith$1($receiver, pattern) {
      return this.startsWith$2($receiver, pattern, 0);
    },
    substring$2(receiver, start, end) {
      return receiver.substring(start, A.RangeError_checkValidRange(start, end, receiver.length));
    },
    substring$1($receiver, start) {
      return this.substring$2($receiver, start, null);
    },
    trim$0(receiver) {
      var startIndex, t1, endIndex0,
        result = receiver.trim(),
        endIndex = result.length;
      if (endIndex === 0)
        return result;
      if (0 >= endIndex)
        return A.ioore(result, 0);
      if (result.charCodeAt(0) === 133) {
        startIndex = J.JSString__skipLeadingWhitespace(result, 1);
        if (startIndex === endIndex)
          return "";
      } else
        startIndex = 0;
      t1 = endIndex - 1;
      if (!(t1 >= 0))
        return A.ioore(result, t1);
      endIndex0 = result.charCodeAt(t1) === 133 ? J.JSString__skipTrailingWhitespace(result, t1) : endIndex;
      if (startIndex === 0 && endIndex0 === endIndex)
        return result;
      return result.substring(startIndex, endIndex0);
    },
    $mul(receiver, times) {
      var s, result;
      if (0 >= times)
        return "";
      if (times === 1 || receiver.length === 0)
        return receiver;
      if (times !== times >>> 0)
        throw A.wrapException(B.C_OutOfMemoryError);
      for (s = receiver, result = ""; true;) {
        if ((times & 1) === 1)
          result = s + result;
        times = times >>> 1;
        if (times === 0)
          break;
        s += s;
      }
      return result;
    },
    indexOf$2(receiver, pattern, start) {
      var t1;
      if (start < 0 || start > receiver.length)
        throw A.wrapException(A.RangeError$range(start, 0, receiver.length, null, null));
      t1 = receiver.indexOf(pattern, start);
      return t1;
    },
    indexOf$1($receiver, pattern) {
      return this.indexOf$2($receiver, pattern, 0);
    },
    contains$1(receiver, other) {
      return A.stringContainsUnchecked(receiver, other, 0);
    },
    toString$0(receiver) {
      return receiver;
    },
    get$hashCode(receiver) {
      var t1, hash, i;
      for (t1 = receiver.length, hash = 0, i = 0; i < t1; ++i) {
        hash = hash + receiver.charCodeAt(i) & 536870911;
        hash = hash + ((hash & 524287) << 10) & 536870911;
        hash ^= hash >> 6;
      }
      hash = hash + ((hash & 67108863) << 3) & 536870911;
      hash ^= hash >> 11;
      return hash + ((hash & 16383) << 15) & 536870911;
    },
    get$runtimeType(receiver) {
      return A.createRuntimeType(type$.String);
    },
    get$length(receiver) {
      return receiver.length;
    },
    $isTrustedGetRuntimeType: 1,
    $isPattern: 1,
    $isString: 1
  };
  A.LateError.prototype = {
    toString$0(_) {
      return "LateInitializationError: " + this.__internal$_message;
    }
  };
  A.CodeUnits.prototype = {
    get$length(_) {
      return this.__internal$_string.length;
    },
    $index(_, i) {
      var t1 = this.__internal$_string;
      if (!(i >= 0 && i < t1.length))
        return A.ioore(t1, i);
      return t1.charCodeAt(i);
    }
  };
  A.EfficientLengthIterable.prototype = {};
  A.ListIterable.prototype = {
    get$iterator(_) {
      var _this = this;
      return new A.ListIterator(_this, _this.get$length(_this), A._instanceType(_this)._eval$1("ListIterator<ListIterable.E>"));
    },
    join$1(_, separator) {
      var first, t1, i, _this = this,
        $length = _this.get$length(_this);
      if (separator.length !== 0) {
        if ($length === 0)
          return "";
        first = A.S(_this.elementAt$1(0, 0));
        if ($length !== _this.get$length(_this))
          throw A.wrapException(A.ConcurrentModificationError$(_this));
        for (t1 = first, i = 1; i < $length; ++i) {
          t1 = t1 + separator + A.S(_this.elementAt$1(0, i));
          if ($length !== _this.get$length(_this))
            throw A.wrapException(A.ConcurrentModificationError$(_this));
        }
        return t1.charCodeAt(0) == 0 ? t1 : t1;
      } else {
        for (i = 0, t1 = ""; i < $length; ++i) {
          t1 += A.S(_this.elementAt$1(0, i));
          if ($length !== _this.get$length(_this))
            throw A.wrapException(A.ConcurrentModificationError$(_this));
        }
        return t1.charCodeAt(0) == 0 ? t1 : t1;
      }
    },
    map$1$1(_, toElement, $T) {
      var t1 = A._instanceType(this);
      return new A.MappedListIterable(this, t1._bind$1($T)._eval$1("1(ListIterable.E)")._as(toElement), t1._eval$1("@<ListIterable.E>")._bind$1($T)._eval$1("MappedListIterable<1,2>"));
    }
  };
  A.SubListIterable.prototype = {
    SubListIterable$3(_iterable, _start, _endOrLength, $E) {
      var endOrLength,
        t1 = this._start;
      A.RangeError_checkNotNegative(t1, "start");
      endOrLength = this._endOrLength;
      if (endOrLength != null) {
        A.RangeError_checkNotNegative(endOrLength, "end");
        if (t1 > endOrLength)
          throw A.wrapException(A.RangeError$range(t1, 0, endOrLength, "start", null));
      }
    },
    get$_endIndex() {
      var $length = J.get$length$asx(this.__internal$_iterable),
        endOrLength = this._endOrLength;
      if (endOrLength == null || endOrLength > $length)
        return $length;
      return endOrLength;
    },
    get$_startIndex() {
      var $length = J.get$length$asx(this.__internal$_iterable),
        t1 = this._start;
      if (t1 > $length)
        return $length;
      return t1;
    },
    get$length(_) {
      var endOrLength,
        $length = J.get$length$asx(this.__internal$_iterable),
        t1 = this._start;
      if (t1 >= $length)
        return 0;
      endOrLength = this._endOrLength;
      if (endOrLength == null || endOrLength >= $length)
        return $length - t1;
      if (typeof endOrLength !== "number")
        return endOrLength.$sub();
      return endOrLength - t1;
    },
    elementAt$1(_, index) {
      var _this = this,
        realIndex = _this.get$_startIndex() + index,
        t1 = _this.get$_endIndex();
      if (realIndex >= t1)
        throw A.wrapException(A.IndexError$withLength(index, _this.get$length(_this), _this, "index"));
      return J.elementAt$1$ax(_this.__internal$_iterable, realIndex);
    }
  };
  A.ListIterator.prototype = {
    get$current() {
      var t1 = this.__internal$_current;
      return t1 == null ? this.$ti._precomputed1._as(t1) : t1;
    },
    moveNext$0() {
      var t3, _this = this,
        t1 = _this.__internal$_iterable,
        t2 = J.getInterceptor$asx(t1),
        $length = t2.get$length(t1);
      if (_this.__internal$_length !== $length)
        throw A.wrapException(A.ConcurrentModificationError$(t1));
      t3 = _this.__internal$_index;
      if (t3 >= $length) {
        _this.set$__internal$_current(null);
        return false;
      }
      _this.set$__internal$_current(t2.elementAt$1(t1, t3));
      ++_this.__internal$_index;
      return true;
    },
    set$__internal$_current(_current) {
      this.__internal$_current = this.$ti._eval$1("1?")._as(_current);
    },
    $isIterator: 1
  };
  A.MappedIterable.prototype = {
    get$iterator(_) {
      var t1 = this.__internal$_iterable,
        t2 = A._instanceType(this);
      return new A.MappedIterator(t1.get$iterator(t1), this._f, t2._eval$1("@<1>")._bind$1(t2._rest[1])._eval$1("MappedIterator<1,2>"));
    },
    get$length(_) {
      var t1 = this.__internal$_iterable;
      return t1.get$length(t1);
    }
  };
  A.EfficientLengthMappedIterable.prototype = {$isEfficientLengthIterable: 1};
  A.MappedIterator.prototype = {
    moveNext$0() {
      var _this = this,
        t1 = _this._iterator;
      if (t1.moveNext$0()) {
        _this.set$__internal$_current(_this._f.call$1(t1.get$current()));
        return true;
      }
      _this.set$__internal$_current(null);
      return false;
    },
    get$current() {
      var t1 = this.__internal$_current;
      return t1 == null ? this.$ti._rest[1]._as(t1) : t1;
    },
    set$__internal$_current(_current) {
      this.__internal$_current = this.$ti._eval$1("2?")._as(_current);
    },
    $isIterator: 1
  };
  A.MappedListIterable.prototype = {
    get$length(_) {
      return J.get$length$asx(this._source);
    },
    elementAt$1(_, index) {
      return this._f.call$1(J.elementAt$1$ax(this._source, index));
    }
  };
  A.WhereIterable.prototype = {
    get$iterator(_) {
      return new A.WhereIterator(J.get$iterator$ax(this.__internal$_iterable), this._f, this.$ti._eval$1("WhereIterator<1>"));
    },
    map$1$1(_, toElement, $T) {
      var t1 = this.$ti;
      return new A.MappedIterable(this, t1._bind$1($T)._eval$1("1(2)")._as(toElement), t1._eval$1("@<1>")._bind$1($T)._eval$1("MappedIterable<1,2>"));
    }
  };
  A.WhereIterator.prototype = {
    moveNext$0() {
      var t1, t2;
      for (t1 = this._iterator, t2 = this._f; t1.moveNext$0();)
        if (A.boolConversionCheck(t2.call$1(t1.get$current())))
          return true;
      return false;
    },
    get$current() {
      return this._iterator.get$current();
    },
    $isIterator: 1
  };
  A.WhereTypeIterable.prototype = {
    get$iterator(_) {
      return new A.WhereTypeIterator(J.get$iterator$ax(this._source), this.$ti._eval$1("WhereTypeIterator<1>"));
    }
  };
  A.WhereTypeIterator.prototype = {
    moveNext$0() {
      var t1, t2;
      for (t1 = this._source, t2 = this.$ti._precomputed1; t1.moveNext$0();)
        if (t2._is(t1.get$current()))
          return true;
      return false;
    },
    get$current() {
      return this.$ti._precomputed1._as(this._source.get$current());
    },
    $isIterator: 1
  };
  A.FixedLengthListMixin.prototype = {};
  A.UnmodifiableListMixin.prototype = {
    $indexSet(_, index, value) {
      A._instanceType(this)._eval$1("UnmodifiableListMixin.E")._as(value);
      throw A.wrapException(A.UnsupportedError$("Cannot modify an unmodifiable list"));
    }
  };
  A.UnmodifiableListBase.prototype = {};
  A.TypeErrorDecoder.prototype = {
    matchTypeError$1(message) {
      var result, t1, _this = this,
        match = new RegExp(_this._pattern).exec(message);
      if (match == null)
        return null;
      result = Object.create(null);
      t1 = _this._arguments;
      if (t1 !== -1)
        result.arguments = match[t1 + 1];
      t1 = _this._argumentsExpr;
      if (t1 !== -1)
        result.argumentsExpr = match[t1 + 1];
      t1 = _this._expr;
      if (t1 !== -1)
        result.expr = match[t1 + 1];
      t1 = _this._method;
      if (t1 !== -1)
        result.method = match[t1 + 1];
      t1 = _this._receiver;
      if (t1 !== -1)
        result.receiver = match[t1 + 1];
      return result;
    }
  };
  A.NullError.prototype = {
    toString$0(_) {
      return "Null check operator used on a null value";
    }
  };
  A.JsNoSuchMethodError.prototype = {
    toString$0(_) {
      var t2, _this = this,
        _s38_ = "NoSuchMethodError: method not found: '",
        t1 = _this._method;
      if (t1 == null)
        return "NoSuchMethodError: " + _this.__js_helper$_message;
      t2 = _this._receiver;
      if (t2 == null)
        return _s38_ + t1 + "' (" + _this.__js_helper$_message + ")";
      return _s38_ + t1 + "' on '" + t2 + "' (" + _this.__js_helper$_message + ")";
    }
  };
  A.UnknownJsTypeError.prototype = {
    toString$0(_) {
      var t1 = this.__js_helper$_message;
      return t1.length === 0 ? "Error" : "Error: " + t1;
    }
  };
  A.NullThrownFromJavaScriptException.prototype = {
    toString$0(_) {
      return "Throw of null ('" + (this._irritant === null ? "null" : "undefined") + "' from JavaScript)";
    }
  };
  A.ExceptionAndStackTrace.prototype = {};
  A._StackTrace.prototype = {
    toString$0(_) {
      var trace,
        t1 = this._trace;
      if (t1 != null)
        return t1;
      t1 = this._exception;
      trace = t1 !== null && typeof t1 === "object" ? t1.stack : null;
      return this._trace = trace == null ? "" : trace;
    },
    $isStackTrace: 1
  };
  A.Closure.prototype = {
    toString$0(_) {
      var $constructor = this.constructor,
        $name = $constructor == null ? null : $constructor.name;
      return "Closure '" + A.unminifyOrTag($name == null ? "unknown" : $name) + "'";
    },
    $isFunction: 1,
    get$$call() {
      return this;
    },
    "call*": "call$1",
    $requiredArgCount: 1,
    $defaultValues: null
  };
  A.Closure0Args.prototype = {"call*": "call$0", $requiredArgCount: 0};
  A.Closure2Args.prototype = {"call*": "call$2", $requiredArgCount: 2};
  A.TearOffClosure.prototype = {};
  A.StaticClosure.prototype = {
    toString$0(_) {
      var $name = this.$static_name;
      if ($name == null)
        return "Closure of unknown static method";
      return "Closure '" + A.unminifyOrTag($name) + "'";
    }
  };
  A.BoundClosure.prototype = {
    $eq(_, other) {
      if (other == null)
        return false;
      if (this === other)
        return true;
      if (!(other instanceof A.BoundClosure))
        return false;
      return this.$_target === other.$_target && this._receiver === other._receiver;
    },
    get$hashCode(_) {
      return (A.objectHashCode(this._receiver) ^ A.Primitives_objectHashCode(this.$_target)) >>> 0;
    },
    toString$0(_) {
      return "Closure '" + this.$_name + "' of " + ("Instance of '" + A.Primitives_objectTypeName(this._receiver) + "'");
    }
  };
  A._CyclicInitializationError.prototype = {
    toString$0(_) {
      return "Reading static variable '" + this.variableName + "' during its initialization";
    }
  };
  A.RuntimeError.prototype = {
    toString$0(_) {
      return "RuntimeError: " + this.message;
    }
  };
  A._AssertionError.prototype = {
    toString$0(_) {
      return "Assertion failed: " + A.Error_safeToString(this.message);
    }
  };
  A.JsLinkedHashMap.prototype = {
    get$length(_) {
      return this.__js_helper$_length;
    },
    get$keys() {
      return new A.LinkedHashMapKeyIterable(this, this.$ti._eval$1("LinkedHashMapKeyIterable<1>"));
    },
    $index(_, key) {
      var strings, cell, t1, nums, _null = null;
      if (typeof key == "string") {
        strings = this.__js_helper$_strings;
        if (strings == null)
          return _null;
        cell = strings[key];
        t1 = cell == null ? _null : cell.hashMapCellValue;
        return t1;
      } else if (typeof key == "number" && (key & 0x3fffffff) === key) {
        nums = this.__js_helper$_nums;
        if (nums == null)
          return _null;
        cell = nums[key];
        t1 = cell == null ? _null : cell.hashMapCellValue;
        return t1;
      } else
        return this.internalGet$1(key);
    },
    internalGet$1(key) {
      var bucket, index,
        rest = this.__js_helper$_rest;
      if (rest == null)
        return null;
      bucket = rest[J.get$hashCode$(key) & 1073741823];
      index = this.internalFindBucketIndex$2(bucket, key);
      if (index < 0)
        return null;
      return bucket[index].hashMapCellValue;
    },
    forEach$1(_, action) {
      var cell, modifications, _this = this;
      _this.$ti._eval$1("~(1,2)")._as(action);
      cell = _this._first;
      modifications = _this._modifications;
      for (; cell != null;) {
        action.call$2(cell.hashMapCellKey, cell.hashMapCellValue);
        if (modifications !== _this._modifications)
          throw A.wrapException(A.ConcurrentModificationError$(_this));
        cell = cell._next;
      }
    },
    _newLinkedCell$2(key, value) {
      var _this = this,
        t1 = _this.$ti,
        cell = new A.LinkedHashMapCell(t1._precomputed1._as(key), t1._rest[1]._as(value));
      if (_this._first == null)
        _this._first = _this._last = cell;
      else
        _this._last = _this._last._next = cell;
      ++_this.__js_helper$_length;
      _this._modifications = _this._modifications + 1 & 1073741823;
      return cell;
    },
    internalFindBucketIndex$2(bucket, key) {
      var $length, i;
      if (bucket == null)
        return -1;
      $length = bucket.length;
      for (i = 0; i < $length; ++i)
        if (J.$eq$(bucket[i].hashMapCellKey, key))
          return i;
      return -1;
    },
    toString$0(_) {
      return A.MapBase_mapToString(this);
    },
    $isLinkedHashMap: 1
  };
  A.LinkedHashMapCell.prototype = {};
  A.LinkedHashMapKeyIterable.prototype = {
    get$length(_) {
      return this.__js_helper$_map.__js_helper$_length;
    },
    get$iterator(_) {
      var t1 = this.__js_helper$_map,
        t2 = new A.LinkedHashMapKeyIterator(t1, t1._modifications, this.$ti._eval$1("LinkedHashMapKeyIterator<1>"));
      t2._cell = t1._first;
      return t2;
    }
  };
  A.LinkedHashMapKeyIterator.prototype = {
    get$current() {
      return this.__js_helper$_current;
    },
    moveNext$0() {
      var cell, _this = this,
        t1 = _this.__js_helper$_map;
      if (_this._modifications !== t1._modifications)
        throw A.wrapException(A.ConcurrentModificationError$(t1));
      cell = _this._cell;
      if (cell == null) {
        _this.set$__js_helper$_current(null);
        return false;
      } else {
        _this.set$__js_helper$_current(cell.hashMapCellKey);
        _this._cell = cell._next;
        return true;
      }
    },
    set$__js_helper$_current(_current) {
      this.__js_helper$_current = this.$ti._eval$1("1?")._as(_current);
    },
    $isIterator: 1
  };
  A.initHooks_closure.prototype = {
    call$1(o) {
      return this.getTag(o);
    },
    $signature: 7
  };
  A.initHooks_closure0.prototype = {
    call$2(o, tag) {
      return this.getUnknownTag(o, tag);
    },
    $signature: 8
  };
  A.initHooks_closure1.prototype = {
    call$1(tag) {
      return this.prototypeForTag(A._asString(tag));
    },
    $signature: 9
  };
  A.JSSyntaxRegExp.prototype = {
    toString$0(_) {
      return "RegExp/" + this.pattern + "/" + this._nativeRegExp.flags;
    },
    get$_nativeGlobalVersion() {
      var _this = this,
        t1 = _this._nativeGlobalRegExp;
      if (t1 != null)
        return t1;
      t1 = _this._nativeRegExp;
      return _this._nativeGlobalRegExp = A.JSSyntaxRegExp_makeNative(_this.pattern, t1.multiline, !t1.ignoreCase, t1.unicode, t1.dotAll, true);
    },
    allMatches$1(_, string) {
      return new A._AllMatchesIterable(this, string, 0);
    },
    _execGlobal$2(string, start) {
      var match,
        regexp = this.get$_nativeGlobalVersion();
      if (regexp == null)
        regexp = type$.Object._as(regexp);
      regexp.lastIndex = start;
      match = regexp.exec(string);
      if (match == null)
        return null;
      return new A._MatchImplementation(match);
    },
    $isPattern: 1,
    $isRegExp: 1
  };
  A._MatchImplementation.prototype = {$isMatch: 1, $isRegExpMatch: 1};
  A._AllMatchesIterable.prototype = {
    get$iterator(_) {
      return new A._AllMatchesIterator(this._re, this._string, this.__js_helper$_start);
    }
  };
  A._AllMatchesIterator.prototype = {
    get$current() {
      var t1 = this.__js_helper$_current;
      return t1 == null ? type$.RegExpMatch._as(t1) : t1;
    },
    moveNext$0() {
      var t1, t2, t3, match, t4, nextIndex, _this = this,
        string = _this._string;
      if (string == null)
        return false;
      t1 = _this._nextIndex;
      t2 = string.length;
      if (t1 <= t2) {
        t3 = _this._regExp;
        match = t3._execGlobal$2(string, t1);
        if (match != null) {
          _this.__js_helper$_current = match;
          t1 = match._match;
          t4 = t1.index;
          nextIndex = t4 + t1[0].length;
          if (t4 === nextIndex) {
            if (t3._nativeRegExp.unicode) {
              t1 = _this._nextIndex;
              t3 = t1 + 1;
              if (t3 < t2) {
                if (!(t1 >= 0 && t1 < t2))
                  return A.ioore(string, t1);
                t1 = string.charCodeAt(t1);
                if (t1 >= 55296 && t1 <= 56319) {
                  if (!(t3 >= 0))
                    return A.ioore(string, t3);
                  t1 = string.charCodeAt(t3);
                  t1 = t1 >= 56320 && t1 <= 57343;
                } else
                  t1 = false;
              } else
                t1 = false;
            } else
              t1 = false;
            nextIndex = (t1 ? nextIndex + 1 : nextIndex) + 1;
          }
          _this._nextIndex = nextIndex;
          return true;
        }
      }
      _this._string = _this.__js_helper$_current = null;
      return false;
    },
    $isIterator: 1
  };
  A.StringMatch.prototype = {$isMatch: 1};
  A._StringAllMatchesIterable.prototype = {
    get$iterator(_) {
      return new A._StringAllMatchesIterator(this._input, this._pattern, this.__js_helper$_index);
    }
  };
  A._StringAllMatchesIterator.prototype = {
    moveNext$0() {
      var index, end, _this = this,
        t1 = _this.__js_helper$_index,
        t2 = _this._pattern,
        t3 = t2.length,
        t4 = _this._input,
        t5 = t4.length;
      if (t1 + t3 > t5) {
        _this.__js_helper$_current = null;
        return false;
      }
      index = t4.indexOf(t2, t1);
      if (index < 0) {
        _this.__js_helper$_index = t5 + 1;
        _this.__js_helper$_current = null;
        return false;
      }
      end = index + t3;
      _this.__js_helper$_current = new A.StringMatch(index, t2);
      _this.__js_helper$_index = end === _this.__js_helper$_index ? end + 1 : end;
      return true;
    },
    get$current() {
      var t1 = this.__js_helper$_current;
      t1.toString;
      return t1;
    },
    $isIterator: 1
  };
  A.NativeByteBuffer.prototype = {
    get$runtimeType(receiver) {
      return B.Type_ByteBuffer_RkP;
    },
    $isTrustedGetRuntimeType: 1,
    $isByteBuffer: 1
  };
  A.NativeTypedData.prototype = {};
  A.NativeByteData.prototype = {
    get$runtimeType(receiver) {
      return B.Type_ByteData_zNC;
    },
    $isTrustedGetRuntimeType: 1,
    $isByteData: 1
  };
  A.NativeTypedArray.prototype = {
    get$length(receiver) {
      return receiver.length;
    },
    $isJavaScriptIndexingBehavior: 1
  };
  A.NativeTypedArrayOfDouble.prototype = {
    $index(receiver, index) {
      A._checkValidIndex(index, receiver, receiver.length);
      return receiver[index];
    },
    $indexSet(receiver, index, value) {
      A._checkValidIndex(index, receiver, receiver.length);
      receiver[index] = value;
    },
    $isEfficientLengthIterable: 1,
    $isIterable: 1,
    $isList: 1
  };
  A.NativeTypedArrayOfInt.prototype = {
    $indexSet(receiver, index, value) {
      A._checkValidIndex(index, receiver, receiver.length);
      receiver[index] = value;
    },
    $isEfficientLengthIterable: 1,
    $isIterable: 1,
    $isList: 1
  };
  A.NativeFloat32List.prototype = {
    get$runtimeType(receiver) {
      return B.Type_Float32List_LB7;
    },
    $isTrustedGetRuntimeType: 1,
    $isFloat32List: 1
  };
  A.NativeFloat64List.prototype = {
    get$runtimeType(receiver) {
      return B.Type_Float64List_LB7;
    },
    $isTrustedGetRuntimeType: 1,
    $isFloat64List: 1
  };
  A.NativeInt16List.prototype = {
    get$runtimeType(receiver) {
      return B.Type_Int16List_uXf;
    },
    $index(receiver, index) {
      A._checkValidIndex(index, receiver, receiver.length);
      return receiver[index];
    },
    $isTrustedGetRuntimeType: 1,
    $isInt16List: 1
  };
  A.NativeInt32List.prototype = {
    get$runtimeType(receiver) {
      return B.Type_Int32List_O50;
    },
    $index(receiver, index) {
      A._checkValidIndex(index, receiver, receiver.length);
      return receiver[index];
    },
    $isTrustedGetRuntimeType: 1,
    $isInt32List: 1
  };
  A.NativeInt8List.prototype = {
    get$runtimeType(receiver) {
      return B.Type_Int8List_ekJ;
    },
    $index(receiver, index) {
      A._checkValidIndex(index, receiver, receiver.length);
      return receiver[index];
    },
    $isTrustedGetRuntimeType: 1,
    $isInt8List: 1
  };
  A.NativeUint16List.prototype = {
    get$runtimeType(receiver) {
      return B.Type_Uint16List_2bx;
    },
    $index(receiver, index) {
      A._checkValidIndex(index, receiver, receiver.length);
      return receiver[index];
    },
    $isTrustedGetRuntimeType: 1,
    $isUint16List: 1
  };
  A.NativeUint32List.prototype = {
    get$runtimeType(receiver) {
      return B.Type_Uint32List_2bx;
    },
    $index(receiver, index) {
      A._checkValidIndex(index, receiver, receiver.length);
      return receiver[index];
    },
    $isTrustedGetRuntimeType: 1,
    $isUint32List: 1
  };
  A.NativeUint8ClampedList.prototype = {
    get$runtimeType(receiver) {
      return B.Type_Uint8ClampedList_Jik;
    },
    get$length(receiver) {
      return receiver.length;
    },
    $index(receiver, index) {
      A._checkValidIndex(index, receiver, receiver.length);
      return receiver[index];
    },
    $isTrustedGetRuntimeType: 1,
    $isUint8ClampedList: 1
  };
  A.NativeUint8List.prototype = {
    get$runtimeType(receiver) {
      return B.Type_Uint8List_WLA;
    },
    get$length(receiver) {
      return receiver.length;
    },
    $index(receiver, index) {
      A._checkValidIndex(index, receiver, receiver.length);
      return receiver[index];
    },
    $isTrustedGetRuntimeType: 1,
    $isUint8List: 1
  };
  A._NativeTypedArrayOfDouble_NativeTypedArray_ListMixin.prototype = {};
  A._NativeTypedArrayOfDouble_NativeTypedArray_ListMixin_FixedLengthListMixin.prototype = {};
  A._NativeTypedArrayOfInt_NativeTypedArray_ListMixin.prototype = {};
  A._NativeTypedArrayOfInt_NativeTypedArray_ListMixin_FixedLengthListMixin.prototype = {};
  A.Rti.prototype = {
    _eval$1(recipe) {
      return A._Universe_evalInEnvironment(init.typeUniverse, this, recipe);
    },
    _bind$1(typeOrTuple) {
      return A._Universe_bind(init.typeUniverse, this, typeOrTuple);
    }
  };
  A._FunctionParameters.prototype = {};
  A._Type.prototype = {
    toString$0(_) {
      return A._rtiToString(this._rti, null);
    }
  };
  A._Error.prototype = {
    toString$0(_) {
      return this._message;
    }
  };
  A._TypeError.prototype = {$isTypeError: 1};
  A._AsyncRun__initializeScheduleImmediate_internalCallback.prototype = {
    call$1(_) {
      var t1 = this._box_0,
        f = t1.storedCallback;
      t1.storedCallback = null;
      f.call$0();
    },
    $signature: 3
  };
  A._AsyncRun__initializeScheduleImmediate_closure.prototype = {
    call$1(callback) {
      var t1, t2;
      this._box_0.storedCallback = type$.void_Function._as(callback);
      t1 = this.div;
      t2 = this.span;
      t1.firstChild ? t1.removeChild(t2) : t1.appendChild(t2);
    },
    $signature: 10
  };
  A._AsyncRun__scheduleImmediateJsOverride_internalCallback.prototype = {
    call$0() {
      this.callback.call$0();
    },
    $signature: 4
  };
  A._AsyncRun__scheduleImmediateWithSetImmediate_internalCallback.prototype = {
    call$0() {
      this.callback.call$0();
    },
    $signature: 4
  };
  A._TimerImpl.prototype = {
    _TimerImpl$2(milliseconds, callback) {
      if (self.setTimeout != null)
        self.setTimeout(A.convertDartClosureToJS(new A._TimerImpl_internalCallback(this, callback), 0), milliseconds);
      else
        throw A.wrapException(A.UnsupportedError$("`setTimeout()` not found."));
    }
  };
  A._TimerImpl_internalCallback.prototype = {
    call$0() {
      this.callback.call$0();
    },
    $signature: 0
  };
  A._AsyncAwaitCompleter.prototype = {
    complete$1(value) {
      var t2, _this = this,
        t1 = _this.$ti;
      t1._eval$1("1/?")._as(value);
      if (value == null)
        value = t1._precomputed1._as(value);
      if (!_this.isSync)
        _this._future._asyncComplete$1(value);
      else {
        t2 = _this._future;
        if (t1._eval$1("Future<1>")._is(value))
          t2._chainFuture$1(value);
        else
          t2._completeWithValue$1(value);
      }
    },
    completeError$2(e, st) {
      var t1 = this._future;
      if (this.isSync)
        t1._completeError$2(e, st);
      else
        t1._asyncCompleteError$2(e, st);
    }
  };
  A._awaitOnObject_closure.prototype = {
    call$1(result) {
      return this.bodyFunction.call$2(0, result);
    },
    $signature: 1
  };
  A._awaitOnObject_closure0.prototype = {
    call$2(error, stackTrace) {
      this.bodyFunction.call$2(1, new A.ExceptionAndStackTrace(error, type$.StackTrace._as(stackTrace)));
    },
    $signature: 11
  };
  A._wrapJsFunctionForAsync_closure.prototype = {
    call$2(errorCode, result) {
      this.$protected(A._asInt(errorCode), result);
    },
    $signature: 12
  };
  A.AsyncError.prototype = {
    toString$0(_) {
      return A.S(this.error);
    },
    $isError: 1,
    get$stackTrace() {
      return this.stackTrace;
    }
  };
  A._Completer.prototype = {
    completeError$2(error, stackTrace) {
      var t1;
      A.checkNotNullable(error, "error", type$.Object);
      t1 = this.future;
      if ((t1._state & 30) !== 0)
        throw A.wrapException(A.StateError$("Future already completed"));
      if (stackTrace == null)
        stackTrace = A.AsyncError_defaultStackTrace(error);
      t1._asyncCompleteError$2(error, stackTrace);
    },
    completeError$1(error) {
      return this.completeError$2(error, null);
    }
  };
  A._AsyncCompleter.prototype = {
    complete$1(value) {
      var t2,
        t1 = this.$ti;
      t1._eval$1("1/?")._as(value);
      t2 = this.future;
      if ((t2._state & 30) !== 0)
        throw A.wrapException(A.StateError$("Future already completed"));
      t2._asyncComplete$1(t1._eval$1("1/")._as(value));
    }
  };
  A._FutureListener.prototype = {
    matchesErrorTest$1(asyncError) {
      if ((this.state & 15) !== 6)
        return true;
      return this.result._zone.runUnary$2$2(type$.bool_Function_Object._as(this.callback), asyncError.error, type$.bool, type$.Object);
    },
    handleError$1(asyncError) {
      var exception, _this = this,
        errorCallback = _this.errorCallback,
        result = null,
        t1 = type$.dynamic,
        t2 = type$.Object,
        t3 = asyncError.error,
        t4 = _this.result._zone;
      if (type$.dynamic_Function_Object_StackTrace._is(errorCallback))
        result = t4.runBinary$3$3(errorCallback, t3, asyncError.stackTrace, t1, t2, type$.StackTrace);
      else
        result = t4.runUnary$2$2(type$.dynamic_Function_Object._as(errorCallback), t3, t1, t2);
      try {
        t1 = _this.$ti._eval$1("2/")._as(result);
        return t1;
      } catch (exception) {
        if (type$.TypeError._is(A.unwrapException(exception))) {
          if ((_this.state & 1) !== 0)
            throw A.wrapException(A.ArgumentError$("The error handler of Future.then must return a value of the returned future's type", "onError"));
          throw A.wrapException(A.ArgumentError$("The error handler of Future.catchError must return a value of the future's type", "onError"));
        } else
          throw exception;
      }
    }
  };
  A._Future.prototype = {
    _setChained$1(source) {
      this._state = this._state & 1 | 4;
      this._resultOrListeners = source;
    },
    then$1$2$onError(f, onError, $R) {
      var currentZone, result, t2,
        t1 = this.$ti;
      t1._bind$1($R)._eval$1("1/(2)")._as(f);
      currentZone = $.Zone__current;
      if (currentZone === B.C__RootZone) {
        if (onError != null && !type$.dynamic_Function_Object_StackTrace._is(onError) && !type$.dynamic_Function_Object._is(onError))
          throw A.wrapException(A.ArgumentError$value(onError, "onError", string$.Error_));
      } else {
        $R._eval$1("@<0/>")._bind$1(t1._precomputed1)._eval$1("1(2)")._as(f);
        if (onError != null)
          onError = A._registerErrorHandler(onError, currentZone);
      }
      result = new A._Future(currentZone, $R._eval$1("_Future<0>"));
      t2 = onError == null ? 1 : 3;
      this._addListener$1(new A._FutureListener(result, t2, f, onError, t1._eval$1("@<1>")._bind$1($R)._eval$1("_FutureListener<1,2>")));
      return result;
    },
    then$1$1(f, $R) {
      return this.then$1$2$onError(f, null, $R);
    },
    _thenAwait$1$2(f, onError, $E) {
      var result,
        t1 = this.$ti;
      t1._bind$1($E)._eval$1("1/(2)")._as(f);
      result = new A._Future($.Zone__current, $E._eval$1("_Future<0>"));
      this._addListener$1(new A._FutureListener(result, 19, f, onError, t1._eval$1("@<1>")._bind$1($E)._eval$1("_FutureListener<1,2>")));
      return result;
    },
    _setErrorObject$1(error) {
      this._state = this._state & 1 | 16;
      this._resultOrListeners = error;
    },
    _cloneResult$1(source) {
      this._state = source._state & 30 | this._state & 1;
      this._resultOrListeners = source._resultOrListeners;
    },
    _addListener$1(listener) {
      var source, _this = this,
        t1 = _this._state;
      if (t1 <= 3) {
        listener._nextListener = type$.nullable__FutureListener_dynamic_dynamic._as(_this._resultOrListeners);
        _this._resultOrListeners = listener;
      } else {
        if ((t1 & 4) !== 0) {
          source = type$._Future_dynamic._as(_this._resultOrListeners);
          if ((source._state & 24) === 0) {
            source._addListener$1(listener);
            return;
          }
          _this._cloneResult$1(source);
        }
        A._rootScheduleMicrotask(null, null, _this._zone, type$.void_Function._as(new A._Future__addListener_closure(_this, listener)));
      }
    },
    _prependListeners$1(listeners) {
      var t1, existingListeners, next, cursor, next0, source, _this = this, _box_0 = {};
      _box_0.listeners = listeners;
      if (listeners == null)
        return;
      t1 = _this._state;
      if (t1 <= 3) {
        existingListeners = type$.nullable__FutureListener_dynamic_dynamic._as(_this._resultOrListeners);
        _this._resultOrListeners = listeners;
        if (existingListeners != null) {
          next = listeners._nextListener;
          for (cursor = listeners; next != null; cursor = next, next = next0)
            next0 = next._nextListener;
          cursor._nextListener = existingListeners;
        }
      } else {
        if ((t1 & 4) !== 0) {
          source = type$._Future_dynamic._as(_this._resultOrListeners);
          if ((source._state & 24) === 0) {
            source._prependListeners$1(listeners);
            return;
          }
          _this._cloneResult$1(source);
        }
        _box_0.listeners = _this._reverseListeners$1(listeners);
        A._rootScheduleMicrotask(null, null, _this._zone, type$.void_Function._as(new A._Future__prependListeners_closure(_box_0, _this)));
      }
    },
    _removeListeners$0() {
      var current = type$.nullable__FutureListener_dynamic_dynamic._as(this._resultOrListeners);
      this._resultOrListeners = null;
      return this._reverseListeners$1(current);
    },
    _reverseListeners$1(listeners) {
      var current, prev, next;
      for (current = listeners, prev = null; current != null; prev = current, current = next) {
        next = current._nextListener;
        current._nextListener = prev;
      }
      return prev;
    },
    _chainForeignFuture$1(source) {
      var e, s, exception, _this = this;
      _this._state ^= 2;
      try {
        source.then$1$2$onError(new A._Future__chainForeignFuture_closure(_this), new A._Future__chainForeignFuture_closure0(_this), type$.Null);
      } catch (exception) {
        e = A.unwrapException(exception);
        s = A.getTraceFromException(exception);
        A.scheduleMicrotask(new A._Future__chainForeignFuture_closure1(_this, e, s));
      }
    },
    _completeWithValue$1(value) {
      var listeners, _this = this;
      _this.$ti._precomputed1._as(value);
      listeners = _this._removeListeners$0();
      _this._state = 8;
      _this._resultOrListeners = value;
      A._Future__propagateToListeners(_this, listeners);
    },
    _completeError$2(error, stackTrace) {
      var listeners;
      type$.StackTrace._as(stackTrace);
      listeners = this._removeListeners$0();
      this._setErrorObject$1(A.AsyncError$(error, stackTrace));
      A._Future__propagateToListeners(this, listeners);
    },
    _asyncComplete$1(value) {
      var t1 = this.$ti;
      t1._eval$1("1/")._as(value);
      if (t1._eval$1("Future<1>")._is(value)) {
        this._chainFuture$1(value);
        return;
      }
      this._asyncCompleteWithValue$1(value);
    },
    _asyncCompleteWithValue$1(value) {
      var _this = this;
      _this.$ti._precomputed1._as(value);
      _this._state ^= 2;
      A._rootScheduleMicrotask(null, null, _this._zone, type$.void_Function._as(new A._Future__asyncCompleteWithValue_closure(_this, value)));
    },
    _chainFuture$1(value) {
      var t1 = this.$ti;
      t1._eval$1("Future<1>")._as(value);
      if (t1._is(value)) {
        A._Future__chainCoreFutureAsync(value, this);
        return;
      }
      this._chainForeignFuture$1(value);
    },
    _asyncCompleteError$2(error, stackTrace) {
      this._state ^= 2;
      A._rootScheduleMicrotask(null, null, this._zone, type$.void_Function._as(new A._Future__asyncCompleteError_closure(this, error, stackTrace)));
    },
    $isFuture: 1
  };
  A._Future__addListener_closure.prototype = {
    call$0() {
      A._Future__propagateToListeners(this.$this, this.listener);
    },
    $signature: 0
  };
  A._Future__prependListeners_closure.prototype = {
    call$0() {
      A._Future__propagateToListeners(this.$this, this._box_0.listeners);
    },
    $signature: 0
  };
  A._Future__chainForeignFuture_closure.prototype = {
    call$1(value) {
      var error, stackTrace, exception,
        t1 = this.$this;
      t1._state ^= 2;
      try {
        t1._completeWithValue$1(t1.$ti._precomputed1._as(value));
      } catch (exception) {
        error = A.unwrapException(exception);
        stackTrace = A.getTraceFromException(exception);
        t1._completeError$2(error, stackTrace);
      }
    },
    $signature: 3
  };
  A._Future__chainForeignFuture_closure0.prototype = {
    call$2(error, stackTrace) {
      this.$this._completeError$2(type$.Object._as(error), type$.StackTrace._as(stackTrace));
    },
    $signature: 13
  };
  A._Future__chainForeignFuture_closure1.prototype = {
    call$0() {
      this.$this._completeError$2(this.e, this.s);
    },
    $signature: 0
  };
  A._Future__chainCoreFutureAsync_closure.prototype = {
    call$0() {
      A._Future__chainCoreFutureSync(this._box_0.source, this.target);
    },
    $signature: 0
  };
  A._Future__asyncCompleteWithValue_closure.prototype = {
    call$0() {
      this.$this._completeWithValue$1(this.value);
    },
    $signature: 0
  };
  A._Future__asyncCompleteError_closure.prototype = {
    call$0() {
      this.$this._completeError$2(this.error, this.stackTrace);
    },
    $signature: 0
  };
  A._Future__propagateToListeners_handleWhenCompleteCallback.prototype = {
    call$0() {
      var e, s, t1, exception, t2, originalSource, _this = this, completeResult = null;
      try {
        t1 = _this._box_0.listener;
        completeResult = t1.result._zone.run$1$1(type$.dynamic_Function._as(t1.callback), type$.dynamic);
      } catch (exception) {
        e = A.unwrapException(exception);
        s = A.getTraceFromException(exception);
        t1 = _this.hasError && type$.AsyncError._as(_this._box_1.source._resultOrListeners).error === e;
        t2 = _this._box_0;
        if (t1)
          t2.listenerValueOrError = type$.AsyncError._as(_this._box_1.source._resultOrListeners);
        else
          t2.listenerValueOrError = A.AsyncError$(e, s);
        t2.listenerHasError = true;
        return;
      }
      if (completeResult instanceof A._Future && (completeResult._state & 24) !== 0) {
        if ((completeResult._state & 16) !== 0) {
          t1 = _this._box_0;
          t1.listenerValueOrError = type$.AsyncError._as(completeResult._resultOrListeners);
          t1.listenerHasError = true;
        }
        return;
      }
      if (completeResult instanceof A._Future) {
        originalSource = _this._box_1.source;
        t1 = _this._box_0;
        t1.listenerValueOrError = completeResult.then$1$1(new A._Future__propagateToListeners_handleWhenCompleteCallback_closure(originalSource), type$.dynamic);
        t1.listenerHasError = false;
      }
    },
    $signature: 0
  };
  A._Future__propagateToListeners_handleWhenCompleteCallback_closure.prototype = {
    call$1(_) {
      return this.originalSource;
    },
    $signature: 14
  };
  A._Future__propagateToListeners_handleValueCallback.prototype = {
    call$0() {
      var e, s, t1, t2, t3, t4, t5, exception;
      try {
        t1 = this._box_0;
        t2 = t1.listener;
        t3 = t2.$ti;
        t4 = t3._precomputed1;
        t5 = t4._as(this.sourceResult);
        t1.listenerValueOrError = t2.result._zone.runUnary$2$2(t3._eval$1("2/(1)")._as(t2.callback), t5, t3._eval$1("2/"), t4);
      } catch (exception) {
        e = A.unwrapException(exception);
        s = A.getTraceFromException(exception);
        t1 = this._box_0;
        t1.listenerValueOrError = A.AsyncError$(e, s);
        t1.listenerHasError = true;
      }
    },
    $signature: 0
  };
  A._Future__propagateToListeners_handleError.prototype = {
    call$0() {
      var asyncError, e, s, t1, exception, t2, _this = this;
      try {
        asyncError = type$.AsyncError._as(_this._box_1.source._resultOrListeners);
        t1 = _this._box_0;
        if (t1.listener.matchesErrorTest$1(asyncError) && t1.listener.errorCallback != null) {
          t1.listenerValueOrError = t1.listener.handleError$1(asyncError);
          t1.listenerHasError = false;
        }
      } catch (exception) {
        e = A.unwrapException(exception);
        s = A.getTraceFromException(exception);
        t1 = type$.AsyncError._as(_this._box_1.source._resultOrListeners);
        t2 = _this._box_0;
        if (t1.error === e)
          t2.listenerValueOrError = t1;
        else
          t2.listenerValueOrError = A.AsyncError$(e, s);
        t2.listenerHasError = true;
      }
    },
    $signature: 0
  };
  A._AsyncCallbackEntry.prototype = {};
  A._StreamIterator.prototype = {};
  A._Zone.prototype = {$isZone: 1};
  A._rootHandleError_closure.prototype = {
    call$0() {
      A.Error_throwWithStackTrace(this.error, this.stackTrace);
    },
    $signature: 0
  };
  A._RootZone.prototype = {
    runGuarded$1(f) {
      var e, s, exception;
      type$.void_Function._as(f);
      try {
        if (B.C__RootZone === $.Zone__current) {
          f.call$0();
          return;
        }
        A._rootRun(null, null, this, f, type$.void);
      } catch (exception) {
        e = A.unwrapException(exception);
        s = A.getTraceFromException(exception);
        A._rootHandleError(type$.Object._as(e), type$.StackTrace._as(s));
      }
    },
    bindCallbackGuarded$1(f) {
      return new A._RootZone_bindCallbackGuarded_closure(this, type$.void_Function._as(f));
    },
    run$1$1(f, $R) {
      $R._eval$1("0()")._as(f);
      if ($.Zone__current === B.C__RootZone)
        return f.call$0();
      return A._rootRun(null, null, this, f, $R);
    },
    runUnary$2$2(f, arg, $R, $T) {
      $R._eval$1("@<0>")._bind$1($T)._eval$1("1(2)")._as(f);
      $T._as(arg);
      if ($.Zone__current === B.C__RootZone)
        return f.call$1(arg);
      return A._rootRunUnary(null, null, this, f, arg, $R, $T);
    },
    runBinary$3$3(f, arg1, arg2, $R, T1, T2) {
      $R._eval$1("@<0>")._bind$1(T1)._bind$1(T2)._eval$1("1(2,3)")._as(f);
      T1._as(arg1);
      T2._as(arg2);
      if ($.Zone__current === B.C__RootZone)
        return f.call$2(arg1, arg2);
      return A._rootRunBinary(null, null, this, f, arg1, arg2, $R, T1, T2);
    },
    registerBinaryCallback$3$1(f, $R, T1, T2) {
      return $R._eval$1("@<0>")._bind$1(T1)._bind$1(T2)._eval$1("1(2,3)")._as(f);
    }
  };
  A._RootZone_bindCallbackGuarded_closure.prototype = {
    call$0() {
      return this.$this.runGuarded$1(this.f);
    },
    $signature: 0
  };
  A._HashMap.prototype = {
    get$length(_) {
      return this._collection$_length;
    },
    get$keys() {
      return new A._HashMapKeyIterable(this, this.$ti._eval$1("_HashMapKeyIterable<1>"));
    },
    containsKey$1(key) {
      var strings, nums;
      if (typeof key == "string" && key !== "__proto__") {
        strings = this._strings;
        return strings == null ? false : strings[key] != null;
      } else if (typeof key == "number" && (key & 1073741823) === key) {
        nums = this._nums;
        return nums == null ? false : nums[key] != null;
      } else
        return this._containsKey$1(key);
    },
    _containsKey$1(key) {
      var rest = this._collection$_rest;
      if (rest == null)
        return false;
      return this._findBucketIndex$2(this._getBucket$2(rest, key), key) >= 0;
    },
    $index(_, key) {
      var strings, t1, nums;
      if (typeof key == "string" && key !== "__proto__") {
        strings = this._strings;
        t1 = strings == null ? null : A._HashMap__getTableEntry(strings, key);
        return t1;
      } else if (typeof key == "number" && (key & 1073741823) === key) {
        nums = this._nums;
        t1 = nums == null ? null : A._HashMap__getTableEntry(nums, key);
        return t1;
      } else
        return this._get$1(key);
    },
    _get$1(key) {
      var bucket, index,
        rest = this._collection$_rest;
      if (rest == null)
        return null;
      bucket = this._getBucket$2(rest, key);
      index = this._findBucketIndex$2(bucket, key);
      return index < 0 ? null : bucket[index + 1];
    },
    $indexSet(_, key, value) {
      var rest, hash, bucket, index, _this = this,
        t1 = _this.$ti;
      t1._precomputed1._as(key);
      t1._rest[1]._as(value);
      rest = _this._collection$_rest;
      if (rest == null)
        rest = _this._collection$_rest = A._HashMap__newHashTable();
      hash = A.objectHashCode(key) & 1073741823;
      bucket = rest[hash];
      if (bucket == null) {
        A._HashMap__setTableEntry(rest, hash, [key, value]);
        ++_this._collection$_length;
        _this._keys = null;
      } else {
        index = _this._findBucketIndex$2(bucket, key);
        if (index >= 0)
          bucket[index + 1] = value;
        else {
          bucket.push(key, value);
          ++_this._collection$_length;
          _this._keys = null;
        }
      }
    },
    forEach$1(_, action) {
      var keys, $length, t2, i, key, t3, _this = this,
        t1 = _this.$ti;
      t1._eval$1("~(1,2)")._as(action);
      keys = _this._computeKeys$0();
      for ($length = keys.length, t2 = t1._precomputed1, t1 = t1._rest[1], i = 0; i < $length; ++i) {
        key = keys[i];
        t2._as(key);
        t3 = _this.$index(0, key);
        action.call$2(key, t3 == null ? t1._as(t3) : t3);
        if (keys !== _this._keys)
          throw A.wrapException(A.ConcurrentModificationError$(_this));
      }
    },
    _computeKeys$0() {
      var strings, names, entries, index, i, nums, rest, bucket, $length, i0, _this = this,
        result = _this._keys;
      if (result != null)
        return result;
      result = A.List_List$filled(_this._collection$_length, null, false, type$.dynamic);
      strings = _this._strings;
      if (strings != null) {
        names = Object.getOwnPropertyNames(strings);
        entries = names.length;
        for (index = 0, i = 0; i < entries; ++i) {
          result[index] = names[i];
          ++index;
        }
      } else
        index = 0;
      nums = _this._nums;
      if (nums != null) {
        names = Object.getOwnPropertyNames(nums);
        entries = names.length;
        for (i = 0; i < entries; ++i) {
          result[index] = +names[i];
          ++index;
        }
      }
      rest = _this._collection$_rest;
      if (rest != null) {
        names = Object.getOwnPropertyNames(rest);
        entries = names.length;
        for (i = 0; i < entries; ++i) {
          bucket = rest[names[i]];
          $length = bucket.length;
          for (i0 = 0; i0 < $length; i0 += 2) {
            result[index] = bucket[i0];
            ++index;
          }
        }
      }
      return _this._keys = result;
    },
    _getBucket$2(table, key) {
      return table[A.objectHashCode(key) & 1073741823];
    }
  };
  A._IdentityHashMap.prototype = {
    _findBucketIndex$2(bucket, key) {
      var $length, i, t1;
      if (bucket == null)
        return -1;
      $length = bucket.length;
      for (i = 0; i < $length; i += 2) {
        t1 = bucket[i];
        if (t1 == null ? key == null : t1 === key)
          return i;
      }
      return -1;
    }
  };
  A._HashMapKeyIterable.prototype = {
    get$length(_) {
      return this._map._collection$_length;
    },
    get$iterator(_) {
      var t1 = this._map;
      return new A._HashMapKeyIterator(t1, t1._computeKeys$0(), this.$ti._eval$1("_HashMapKeyIterator<1>"));
    }
  };
  A._HashMapKeyIterator.prototype = {
    get$current() {
      var t1 = this._collection$_current;
      return t1 == null ? this.$ti._precomputed1._as(t1) : t1;
    },
    moveNext$0() {
      var _this = this,
        keys = _this._keys,
        offset = _this._offset,
        t1 = _this._map;
      if (keys !== t1._keys)
        throw A.wrapException(A.ConcurrentModificationError$(t1));
      else if (offset >= keys.length) {
        _this.set$_collection$_current(null);
        return false;
      } else {
        _this.set$_collection$_current(keys[offset]);
        _this._offset = offset + 1;
        return true;
      }
    },
    set$_collection$_current(_current) {
      this._collection$_current = this.$ti._eval$1("1?")._as(_current);
    },
    $isIterator: 1
  };
  A.ListBase.prototype = {
    get$iterator(receiver) {
      return new A.ListIterator(receiver, this.get$length(receiver), A.instanceType(receiver)._eval$1("ListIterator<ListBase.E>"));
    },
    elementAt$1(receiver, index) {
      return this.$index(receiver, index);
    },
    map$1$1(receiver, f, $T) {
      var t1 = A.instanceType(receiver);
      return new A.MappedListIterable(receiver, t1._bind$1($T)._eval$1("1(ListBase.E)")._as(f), t1._eval$1("@<ListBase.E>")._bind$1($T)._eval$1("MappedListIterable<1,2>"));
    },
    fillRange$3(receiver, start, end, fill) {
      var i;
      A.instanceType(receiver)._eval$1("ListBase.E?")._as(fill);
      A.RangeError_checkValidRange(start, end, this.get$length(receiver));
      for (i = start; i < end; ++i)
        this.$indexSet(receiver, i, fill);
    },
    toString$0(receiver) {
      return A.Iterable_iterableToFullString(receiver, "[", "]");
    },
    $isEfficientLengthIterable: 1,
    $isIterable: 1,
    $isList: 1
  };
  A.MapBase.prototype = {
    forEach$1(_, action) {
      var t2, key, t3,
        t1 = A._instanceType(this);
      t1._eval$1("~(1,2)")._as(action);
      for (t2 = this.get$keys(), t2 = t2.get$iterator(t2), t1 = t1._rest[1]; t2.moveNext$0();) {
        key = t2.get$current();
        t3 = this.$index(0, key);
        action.call$2(key, t3 == null ? t1._as(t3) : t3);
      }
    },
    get$length(_) {
      var t1 = this.get$keys();
      return t1.get$length(t1);
    },
    toString$0(_) {
      return A.MapBase_mapToString(this);
    },
    $isMap: 1
  };
  A.MapBase_mapToString_closure.prototype = {
    call$2(k, v) {
      var t2,
        t1 = this._box_0;
      if (!t1.first)
        this.result._contents += ", ";
      t1.first = false;
      t1 = this.result;
      t2 = t1._contents += A.S(k);
      t1._contents = t2 + ": ";
      t1._contents += A.S(v);
    },
    $signature: 15
  };
  A.Utf8Decoder__decoder_closure.prototype = {
    call$0() {
      var t1, exception;
      try {
        t1 = new TextDecoder("utf-8", {fatal: true});
        return t1;
      } catch (exception) {
      }
      return null;
    },
    $signature: 5
  };
  A.Utf8Decoder__decoderNonfatal_closure.prototype = {
    call$0() {
      var t1, exception;
      try {
        t1 = new TextDecoder("utf-8", {fatal: false});
        return t1;
      } catch (exception) {
      }
      return null;
    },
    $signature: 5
  };
  A.Base64Codec.prototype = {
    normalize$3(source, start, end) {
      var inverseAlphabet, t2, i, sliceStart, buffer, firstPadding, firstPaddingSourceIndex, paddingCount, i0, char, i1, digit1, t3, digit2, char0, value, endLength, $length,
        _s64_ = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",
        _s31_ = "Invalid base64 encoding length ",
        t1 = source.length;
      end = A.RangeError_checkValidRange(start, end, t1);
      inverseAlphabet = $.$get$_Base64Decoder__inverseAlphabet();
      for (t2 = inverseAlphabet.length, i = start, sliceStart = i, buffer = null, firstPadding = -1, firstPaddingSourceIndex = -1, paddingCount = 0; i < end; i = i0) {
        i0 = i + 1;
        if (!(i < t1))
          return A.ioore(source, i);
        char = source.charCodeAt(i);
        if (char === 37) {
          i1 = i0 + 2;
          if (i1 <= end) {
            if (!(i0 < t1))
              return A.ioore(source, i0);
            digit1 = A.hexDigitValue(source.charCodeAt(i0));
            t3 = i0 + 1;
            if (!(t3 < t1))
              return A.ioore(source, t3);
            digit2 = A.hexDigitValue(source.charCodeAt(t3));
            char0 = digit1 * 16 + digit2 - (digit2 & 256);
            if (char0 === 37)
              char0 = -1;
            i0 = i1;
          } else
            char0 = -1;
        } else
          char0 = char;
        if (0 <= char0 && char0 <= 127) {
          if (!(char0 >= 0 && char0 < t2))
            return A.ioore(inverseAlphabet, char0);
          value = inverseAlphabet[char0];
          if (value >= 0) {
            if (!(value < 64))
              return A.ioore(_s64_, value);
            char0 = _s64_.charCodeAt(value);
            if (char0 === char)
              continue;
            char = char0;
          } else {
            if (value === -1) {
              if (firstPadding < 0) {
                t3 = buffer == null ? null : buffer._contents.length;
                if (t3 == null)
                  t3 = 0;
                firstPadding = t3 + (i - sliceStart);
                firstPaddingSourceIndex = i;
              }
              ++paddingCount;
              if (char === 61)
                continue;
            }
            char = char0;
          }
          if (value !== -2) {
            if (buffer == null) {
              buffer = new A.StringBuffer("");
              t3 = buffer;
            } else
              t3 = buffer;
            t3._contents += B.JSString_methods.substring$2(source, sliceStart, i);
            t3._contents += A.Primitives_stringFromCharCode(char);
            sliceStart = i0;
            continue;
          }
        }
        throw A.wrapException(A.FormatException$("Invalid base64 data", source, i));
      }
      if (buffer != null) {
        t1 = buffer._contents += B.JSString_methods.substring$2(source, sliceStart, end);
        t2 = t1.length;
        if (firstPadding >= 0)
          A.Base64Codec__checkPadding(source, firstPaddingSourceIndex, end, firstPadding, paddingCount, t2);
        else {
          endLength = B.JSInt_methods.$mod(t2 - 1, 4) + 1;
          if (endLength === 1)
            throw A.wrapException(A.FormatException$(_s31_, source, end));
          for (; endLength < 4;) {
            t1 += "=";
            buffer._contents = t1;
            ++endLength;
          }
        }
        t1 = buffer._contents;
        return B.JSString_methods.replaceRange$3(source, start, end, t1.charCodeAt(0) == 0 ? t1 : t1);
      }
      $length = end - start;
      if (firstPadding >= 0)
        A.Base64Codec__checkPadding(source, firstPaddingSourceIndex, end, firstPadding, paddingCount, $length);
      else {
        endLength = B.JSInt_methods.$mod($length, 4);
        if (endLength === 1)
          throw A.wrapException(A.FormatException$(_s31_, source, end));
        if (endLength > 1)
          source = B.JSString_methods.replaceRange$3(source, end, end, endLength === 2 ? "==" : "=");
      }
      return source;
    }
  };
  A.Base64Encoder.prototype = {};
  A.Codec.prototype = {};
  A.Converter.prototype = {};
  A.Encoding.prototype = {};
  A.Utf8Codec.prototype = {};
  A.Utf8Decoder.prototype = {
    convert$1(codeUnits) {
      var t1, result;
      type$.List_int._as(codeUnits);
      t1 = this._allowMalformed;
      result = A.Utf8Decoder__convertIntercepted(t1, codeUnits, 0, null);
      if (result != null)
        return result;
      return new A._Utf8Decoder(t1).convertGeneral$4(codeUnits, 0, null, true);
    }
  };
  A._Utf8Decoder.prototype = {
    convertGeneral$4(codeUnits, start, maybeEnd, single) {
      var end, bytes, result, t1, message, _this = this;
      type$.List_int._as(codeUnits);
      end = A.RangeError_checkValidRange(start, maybeEnd, J.get$length$asx(codeUnits));
      if (start === end)
        return "";
      bytes = A._Utf8Decoder__makeUint8List(codeUnits, start, end);
      result = _this._convertRecursive$4(bytes, 0, end - start, true);
      t1 = _this._convert$_state;
      if ((t1 & 1) !== 0) {
        message = A._Utf8Decoder_errorDescription(t1);
        _this._convert$_state = 0;
        throw A.wrapException(A.FormatException$(message, codeUnits, start + _this._charOrIndex));
      }
      return result;
    },
    _convertRecursive$4(bytes, start, end, single) {
      var mid, s1, _this = this;
      if (end - start > 1000) {
        mid = B.JSInt_methods._tdivFast$1(start + end, 2);
        s1 = _this._convertRecursive$4(bytes, start, mid, false);
        if ((_this._convert$_state & 1) !== 0)
          return s1;
        return s1 + _this._convertRecursive$4(bytes, mid, end, single);
      }
      return _this.decodeGeneral$4(bytes, start, end, single);
    },
    decodeGeneral$4(bytes, start, end, single) {
      var byte, t2, type, t3, i0, markEnd, i1, m, _this = this,
        _s256_ = "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFFFFFFFFFFFFFFFFGGGGGGGGGGGGGGGGHHHHHHHHHHHHHHHHHHHHHHHHHHHIHHHJEEBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBKCCCCCCCCCCCCDCLONNNMEEEEEEEEEEE",
        _s144_ = " \x000:XECCCCCN:lDb \x000:XECCCCCNvlDb \x000:XECCCCCN:lDb AAAAA\x00\x00\x00\x00\x00AAAAA00000AAAAA:::::AAAAAGG000AAAAA00KKKAAAAAG::::AAAAA:IIIIAAAAA000\x800AAAAA\x00\x00\x00\x00 AAAAA",
        _65533 = 65533,
        state = _this._convert$_state,
        char = _this._charOrIndex,
        buffer = new A.StringBuffer(""),
        i = start + 1,
        t1 = bytes.length;
      if (!(start >= 0 && start < t1))
        return A.ioore(bytes, start);
      byte = bytes[start];
      $label0$0:
        for (t2 = _this.allowMalformed; true;) {
          for (; true; i = i0) {
            if (!(byte >= 0 && byte < 256))
              return A.ioore(_s256_, byte);
            type = _s256_.charCodeAt(byte) & 31;
            char = state <= 32 ? byte & 61694 >>> type : (byte & 63 | char << 6) >>> 0;
            t3 = state + type;
            if (!(t3 >= 0 && t3 < 144))
              return A.ioore(_s144_, t3);
            state = _s144_.charCodeAt(t3);
            if (state === 0) {
              buffer._contents += A.Primitives_stringFromCharCode(char);
              if (i === end)
                break $label0$0;
              break;
            } else if ((state & 1) !== 0) {
              if (t2)
                switch (state) {
                  case 69:
                  case 67:
                    buffer._contents += A.Primitives_stringFromCharCode(_65533);
                    break;
                  case 65:
                    buffer._contents += A.Primitives_stringFromCharCode(_65533);
                    --i;
                    break;
                  default:
                    t3 = buffer._contents += A.Primitives_stringFromCharCode(_65533);
                    buffer._contents = t3 + A.Primitives_stringFromCharCode(_65533);
                    break;
                }
              else {
                _this._convert$_state = state;
                _this._charOrIndex = i - 1;
                return "";
              }
              state = 0;
            }
            if (i === end)
              break $label0$0;
            i0 = i + 1;
            if (!(i >= 0 && i < t1))
              return A.ioore(bytes, i);
            byte = bytes[i];
          }
          i0 = i + 1;
          if (!(i >= 0 && i < t1))
            return A.ioore(bytes, i);
          byte = bytes[i];
          if (byte < 128) {
            while (true) {
              if (!(i0 < end)) {
                markEnd = end;
                break;
              }
              i1 = i0 + 1;
              if (!(i0 >= 0 && i0 < t1))
                return A.ioore(bytes, i0);
              byte = bytes[i0];
              if (byte >= 128) {
                markEnd = i1 - 1;
                i0 = i1;
                break;
              }
              i0 = i1;
            }
            if (markEnd - i < 20)
              for (m = i; m < markEnd; ++m) {
                if (!(m < t1))
                  return A.ioore(bytes, m);
                buffer._contents += A.Primitives_stringFromCharCode(bytes[m]);
              }
            else
              buffer._contents += A.String_String$fromCharCodes(bytes, i, markEnd);
            if (markEnd === end)
              break $label0$0;
            i = i0;
          } else
            i = i0;
        }
      if (single && state > 32)
        if (t2)
          buffer._contents += A.Primitives_stringFromCharCode(_65533);
        else {
          _this._convert$_state = 77;
          _this._charOrIndex = end;
          return "";
        }
      _this._convert$_state = state;
      _this._charOrIndex = char;
      t1 = buffer._contents;
      return t1.charCodeAt(0) == 0 ? t1 : t1;
    }
  };
  A.Error.prototype = {
    get$stackTrace() {
      return A.getTraceFromException(this.$thrownJsError);
    }
  };
  A.AssertionError.prototype = {
    toString$0(_) {
      var t1 = this.message;
      if (t1 != null)
        return "Assertion failed: " + A.Error_safeToString(t1);
      return "Assertion failed";
    }
  };
  A.TypeError.prototype = {};
  A.ArgumentError.prototype = {
    get$_errorName() {
      return "Invalid argument" + (!this._hasValue ? "(s)" : "");
    },
    get$_errorExplanation() {
      return "";
    },
    toString$0(_) {
      var _this = this,
        $name = _this.name,
        nameString = $name == null ? "" : " (" + $name + ")",
        message = _this.message,
        messageString = message == null ? "" : ": " + message,
        prefix = _this.get$_errorName() + nameString + messageString;
      if (!_this._hasValue)
        return prefix;
      return prefix + _this.get$_errorExplanation() + ": " + A.Error_safeToString(_this.get$invalidValue());
    },
    get$invalidValue() {
      return this.invalidValue;
    }
  };
  A.RangeError.prototype = {
    get$invalidValue() {
      return A._asNumQ(this.invalidValue);
    },
    get$_errorName() {
      return "RangeError";
    },
    get$_errorExplanation() {
      var explanation,
        start = this.start,
        end = this.end;
      if (start == null)
        explanation = end != null ? ": Not less than or equal to " + A.S(end) : "";
      else if (end == null)
        explanation = ": Not greater than or equal to " + A.S(start);
      else if (end > start)
        explanation = ": Not in inclusive range " + A.S(start) + ".." + A.S(end);
      else
        explanation = end < start ? ": Valid value range is empty" : ": Only valid value is " + A.S(start);
      return explanation;
    }
  };
  A.IndexError.prototype = {
    get$invalidValue() {
      return A._asInt(this.invalidValue);
    },
    get$_errorName() {
      return "RangeError";
    },
    get$_errorExplanation() {
      if (A._asInt(this.invalidValue) < 0)
        return ": index must not be negative";
      var t1 = this.length;
      if (t1 === 0)
        return ": no indices are valid";
      return ": index should be less than " + t1;
    },
    get$length(receiver) {
      return this.length;
    }
  };
  A.UnsupportedError.prototype = {
    toString$0(_) {
      return "Unsupported operation: " + this.message;
    }
  };
  A.UnimplementedError.prototype = {
    toString$0(_) {
      return "UnimplementedError: " + this.message;
    }
  };
  A.StateError.prototype = {
    toString$0(_) {
      return "Bad state: " + this.message;
    }
  };
  A.ConcurrentModificationError.prototype = {
    toString$0(_) {
      var t1 = this.modifiedObject;
      if (t1 == null)
        return "Concurrent modification during iteration.";
      return "Concurrent modification during iteration: " + A.Error_safeToString(t1) + ".";
    }
  };
  A.OutOfMemoryError.prototype = {
    toString$0(_) {
      return "Out of Memory";
    },
    get$stackTrace() {
      return null;
    },
    $isError: 1
  };
  A.StackOverflowError.prototype = {
    toString$0(_) {
      return "Stack Overflow";
    },
    get$stackTrace() {
      return null;
    },
    $isError: 1
  };
  A._Exception.prototype = {
    toString$0(_) {
      return "Exception: " + this.message;
    }
  };
  A.FormatException.prototype = {
    toString$0(_) {
      var t1, lineEnd, lineNum, lineStart, previousCharWasCR, i, char, end, start, prefix, postfix,
        message = this.message,
        report = "" !== message ? "FormatException: " + message : "FormatException",
        offset = this.offset,
        source = this.source;
      if (typeof source == "string") {
        if (offset != null)
          t1 = offset < 0 || offset > source.length;
        else
          t1 = false;
        if (t1)
          offset = null;
        if (offset == null) {
          if (source.length > 78)
            source = B.JSString_methods.substring$2(source, 0, 75) + "...";
          return report + "\n" + source;
        }
        for (lineEnd = source.length, lineNum = 1, lineStart = 0, previousCharWasCR = false, i = 0; i < offset; ++i) {
          if (!(i < lineEnd))
            return A.ioore(source, i);
          char = source.charCodeAt(i);
          if (char === 10) {
            if (lineStart !== i || !previousCharWasCR)
              ++lineNum;
            lineStart = i + 1;
            previousCharWasCR = false;
          } else if (char === 13) {
            ++lineNum;
            lineStart = i + 1;
            previousCharWasCR = true;
          }
        }
        report = lineNum > 1 ? report + (" (at line " + lineNum + ", character " + (offset - lineStart + 1) + ")\n") : report + (" (at character " + (offset + 1) + ")\n");
        for (i = offset; i < lineEnd; ++i) {
          if (!(i >= 0))
            return A.ioore(source, i);
          char = source.charCodeAt(i);
          if (char === 10 || char === 13) {
            lineEnd = i;
            break;
          }
        }
        if (lineEnd - lineStart > 78)
          if (offset - lineStart < 75) {
            end = lineStart + 75;
            start = lineStart;
            prefix = "";
            postfix = "...";
          } else {
            if (lineEnd - offset < 75) {
              start = lineEnd - 75;
              end = lineEnd;
              postfix = "";
            } else {
              start = offset - 36;
              end = offset + 36;
              postfix = "...";
            }
            prefix = "...";
          }
        else {
          end = lineEnd;
          start = lineStart;
          prefix = "";
          postfix = "";
        }
        return report + prefix + B.JSString_methods.substring$2(source, start, end) + postfix + "\n" + B.JSString_methods.$mul(" ", offset - start + prefix.length) + "^\n";
      } else
        return offset != null ? report + (" (at offset " + A.S(offset) + ")") : report;
    }
  };
  A.Iterable.prototype = {
    map$1$1(_, toElement, $T) {
      var t1 = A._instanceType(this);
      return A.MappedIterable_MappedIterable(this, t1._bind$1($T)._eval$1("1(Iterable.E)")._as(toElement), t1._eval$1("Iterable.E"), $T);
    },
    get$length(_) {
      var count,
        it = this.get$iterator(this);
      for (count = 0; it.moveNext$0();)
        ++count;
      return count;
    },
    get$isEmpty(_) {
      return !this.get$iterator(this).moveNext$0();
    },
    elementAt$1(_, index) {
      var iterator, skipCount;
      A.RangeError_checkNotNegative(index, "index");
      iterator = this.get$iterator(this);
      for (skipCount = index; iterator.moveNext$0();) {
        if (skipCount === 0)
          return iterator.get$current();
        --skipCount;
      }
      throw A.wrapException(A.IndexError$withLength(index, index - skipCount, this, "index"));
    },
    toString$0(_) {
      return A.Iterable_iterableToShortString(this, "(", ")");
    }
  };
  A.Null.prototype = {
    get$hashCode(_) {
      return A.Object.prototype.get$hashCode.call(this, this);
    },
    toString$0(_) {
      return "null";
    }
  };
  A.Object.prototype = {$isObject: 1,
    $eq(_, other) {
      return this === other;
    },
    get$hashCode(_) {
      return A.Primitives_objectHashCode(this);
    },
    toString$0(_) {
      return "Instance of '" + A.Primitives_objectTypeName(this) + "'";
    },
    get$runtimeType(_) {
      return A.getRuntimeTypeOfDartObject(this);
    },
    toString() {
      return this.toString$0(this);
    }
  };
  A._StringStackTrace.prototype = {
    toString$0(_) {
      return "";
    },
    $isStackTrace: 1
  };
  A.StringBuffer.prototype = {
    get$length(_) {
      return this._contents.length;
    },
    toString$0(_) {
      var t1 = this._contents;
      return t1.charCodeAt(0) == 0 ? t1 : t1;
    },
    $isStringSink: 1
  };
  A.Uri__parseIPv4Address_error.prototype = {
    call$2(msg, position) {
      throw A.wrapException(A.FormatException$("Illegal IPv4 address, " + msg, this.host, position));
    },
    $signature: 16
  };
  A.Uri_parseIPv6Address_error.prototype = {
    call$2(msg, position) {
      throw A.wrapException(A.FormatException$("Illegal IPv6 address, " + msg, this.host, position));
    },
    $signature: 17
  };
  A.Uri_parseIPv6Address_parseHex.prototype = {
    call$2(start, end) {
      var value;
      if (end - start > 4)
        this.error.call$2("an IPv6 part can only contain a maximum of 4 hex digits", start);
      value = A.int_parse(B.JSString_methods.substring$2(this.host, start, end), 16);
      if (value < 0 || value > 65535)
        this.error.call$2("each part must be in the range of `0x0..0xFFFF`", start);
      return value;
    },
    $signature: 18
  };
  A._Uri.prototype = {
    get$_text() {
      var t1, t2, t3, t4, _this = this,
        value = _this.___Uri__text_FI;
      if (value === $) {
        t1 = _this.scheme;
        t2 = t1.length !== 0 ? "" + t1 + ":" : "";
        t3 = _this._host;
        t4 = t3 == null;
        if (!t4 || t1 === "file") {
          t1 = t2 + "//";
          t2 = _this._userInfo;
          if (t2.length !== 0)
            t1 = t1 + t2 + "@";
          if (!t4)
            t1 += t3;
          t2 = _this._port;
          if (t2 != null)
            t1 = t1 + ":" + A.S(t2);
        } else
          t1 = t2;
        t1 += _this.path;
        t2 = _this._query;
        if (t2 != null)
          t1 = t1 + "?" + t2;
        t2 = _this._fragment;
        if (t2 != null)
          t1 = t1 + "#" + t2;
        value !== $ && A.throwLateFieldADI("_text");
        value = _this.___Uri__text_FI = t1.charCodeAt(0) == 0 ? t1 : t1;
      }
      return value;
    },
    get$pathSegments() {
      var pathToSplit, t1, result, _this = this,
        value = _this.___Uri_pathSegments_FI;
      if (value === $) {
        pathToSplit = _this.path;
        t1 = pathToSplit.length;
        if (t1 !== 0) {
          if (0 >= t1)
            return A.ioore(pathToSplit, 0);
          t1 = pathToSplit.charCodeAt(0) === 47;
        } else
          t1 = false;
        if (t1)
          pathToSplit = B.JSString_methods.substring$1(pathToSplit, 1);
        result = pathToSplit.length === 0 ? B.List_empty : A.List_List$unmodifiable(new A.MappedListIterable(A._setArrayType(pathToSplit.split("/"), type$.JSArray_String), type$.dynamic_Function_String._as(A.core_Uri_decodeComponent$closure()), type$.MappedListIterable_String_dynamic), type$.String);
        _this.___Uri_pathSegments_FI !== $ && A.throwLateFieldADI("pathSegments");
        _this.set$___Uri_pathSegments_FI(result);
        value = result;
      }
      return value;
    },
    get$hashCode(_) {
      var result, _this = this,
        value = _this.___Uri_hashCode_FI;
      if (value === $) {
        result = B.JSString_methods.get$hashCode(_this.get$_text());
        _this.___Uri_hashCode_FI !== $ && A.throwLateFieldADI("hashCode");
        _this.___Uri_hashCode_FI = result;
        value = result;
      }
      return value;
    },
    get$userInfo() {
      return this._userInfo;
    },
    get$host() {
      var host = this._host;
      if (host == null)
        return "";
      if (B.JSString_methods.startsWith$1(host, "["))
        return B.JSString_methods.substring$2(host, 1, host.length - 1);
      return host;
    },
    get$port() {
      var t1 = this._port;
      return t1 == null ? A._Uri__defaultPort(this.scheme) : t1;
    },
    get$query() {
      var t1 = this._query;
      return t1 == null ? "" : t1;
    },
    get$fragment() {
      var t1 = this._fragment;
      return t1 == null ? "" : t1;
    },
    get$hasAuthority() {
      return this._host != null;
    },
    get$hasQuery() {
      return this._query != null;
    },
    get$hasFragment() {
      return this._fragment != null;
    },
    toString$0(_) {
      return this.get$_text();
    },
    $eq(_, other) {
      var t1, t2, _this = this;
      if (other == null)
        return false;
      if (_this === other)
        return true;
      if (type$.Uri._is(other))
        if (_this.scheme === other.get$scheme())
          if (_this._host != null === other.get$hasAuthority())
            if (_this._userInfo === other.get$userInfo())
              if (_this.get$host() === other.get$host())
                if (_this.get$port() === other.get$port())
                  if (_this.path === other.get$path()) {
                    t1 = _this._query;
                    t2 = t1 == null;
                    if (!t2 === other.get$hasQuery()) {
                      if (t2)
                        t1 = "";
                      if (t1 === other.get$query()) {
                        t1 = _this._fragment;
                        t2 = t1 == null;
                        if (!t2 === other.get$hasFragment()) {
                          if (t2)
                            t1 = "";
                          t1 = t1 === other.get$fragment();
                        } else
                          t1 = false;
                      } else
                        t1 = false;
                    } else
                      t1 = false;
                  } else
                    t1 = false;
                else
                  t1 = false;
              else
                t1 = false;
            else
              t1 = false;
          else
            t1 = false;
        else
          t1 = false;
      else
        t1 = false;
      return t1;
    },
    set$___Uri_pathSegments_FI(___Uri_pathSegments_FI) {
      this.___Uri_pathSegments_FI = type$.List_String._as(___Uri_pathSegments_FI);
    },
    $isUri: 1,
    get$scheme() {
      return this.scheme;
    },
    get$path() {
      return this.path;
    }
  };
  A.UriData.prototype = {
    get$uri() {
      var t2, queryIndex, end, query, _this = this, _null = null,
        t1 = _this._uriCache;
      if (t1 == null) {
        t1 = _this._separatorIndices;
        if (0 >= t1.length)
          return A.ioore(t1, 0);
        t2 = _this._text;
        t1 = t1[0] + 1;
        queryIndex = B.JSString_methods.indexOf$2(t2, "?", t1);
        end = t2.length;
        if (queryIndex >= 0) {
          query = A._Uri__normalizeOrSubstring(t2, queryIndex + 1, end, B.List_oFp, false, false);
          end = queryIndex;
        } else
          query = _null;
        t1 = _this._uriCache = new A._DataUri("data", "", _null, _null, A._Uri__normalizeOrSubstring(t2, t1, end, B.List_XRg, false, false), query, _null);
      }
      return t1;
    },
    toString$0(_) {
      var t2,
        t1 = this._separatorIndices;
      if (0 >= t1.length)
        return A.ioore(t1, 0);
      t2 = this._text;
      return t1[0] === -1 ? "data:" + t2 : t2;
    }
  };
  A._createTables_build.prototype = {
    call$2(state, defaultTransition) {
      var t1 = this.tables;
      if (!(state < t1.length))
        return A.ioore(t1, state);
      t1 = t1[state];
      B.NativeUint8List_methods.fillRange$3(t1, 0, 96, defaultTransition);
      return t1;
    },
    $signature: 19
  };
  A._createTables_setChars.prototype = {
    call$3(target, chars, transition) {
      var t1, i, t2;
      for (t1 = chars.length, i = 0; i < t1; ++i) {
        t2 = chars.charCodeAt(i) ^ 96;
        if (!(t2 < 96))
          return A.ioore(target, t2);
        target[t2] = transition;
      }
    },
    $signature: 6
  };
  A._createTables_setRange.prototype = {
    call$3(target, range, transition) {
      var i, n,
        t1 = range.length;
      if (0 >= t1)
        return A.ioore(range, 0);
      i = range.charCodeAt(0);
      if (1 >= t1)
        return A.ioore(range, 1);
      n = range.charCodeAt(1);
      for (; i <= n; ++i) {
        t1 = (i ^ 96) >>> 0;
        if (!(t1 < 96))
          return A.ioore(target, t1);
        target[t1] = transition;
      }
    },
    $signature: 6
  };
  A._SimpleUri.prototype = {
    get$hasAuthority() {
      return this._hostStart > 0;
    },
    get$hasQuery() {
      return this._queryStart < this._fragmentStart;
    },
    get$hasFragment() {
      return this._fragmentStart < this._uri.length;
    },
    get$scheme() {
      var t1 = this._schemeCache;
      return t1 == null ? this._schemeCache = this._computeScheme$0() : t1;
    },
    _computeScheme$0() {
      var t2, _this = this,
        t1 = _this._schemeEnd;
      if (t1 <= 0)
        return "";
      t2 = t1 === 4;
      if (t2 && B.JSString_methods.startsWith$1(_this._uri, "http"))
        return "http";
      if (t1 === 5 && B.JSString_methods.startsWith$1(_this._uri, "https"))
        return "https";
      if (t2 && B.JSString_methods.startsWith$1(_this._uri, "file"))
        return "file";
      if (t1 === 7 && B.JSString_methods.startsWith$1(_this._uri, "package"))
        return "package";
      return B.JSString_methods.substring$2(_this._uri, 0, t1);
    },
    get$userInfo() {
      var t1 = this._hostStart,
        t2 = this._schemeEnd + 3;
      return t1 > t2 ? B.JSString_methods.substring$2(this._uri, t2, t1 - 1) : "";
    },
    get$host() {
      var t1 = this._hostStart;
      return t1 > 0 ? B.JSString_methods.substring$2(this._uri, t1, this._portStart) : "";
    },
    get$port() {
      var t1, _this = this;
      if (_this._hostStart > 0 && _this._portStart + 1 < _this._pathStart)
        return A.int_parse(B.JSString_methods.substring$2(_this._uri, _this._portStart + 1, _this._pathStart), null);
      t1 = _this._schemeEnd;
      if (t1 === 4 && B.JSString_methods.startsWith$1(_this._uri, "http"))
        return 80;
      if (t1 === 5 && B.JSString_methods.startsWith$1(_this._uri, "https"))
        return 443;
      return 0;
    },
    get$path() {
      return B.JSString_methods.substring$2(this._uri, this._pathStart, this._queryStart);
    },
    get$query() {
      var t1 = this._queryStart,
        t2 = this._fragmentStart;
      return t1 < t2 ? B.JSString_methods.substring$2(this._uri, t1 + 1, t2) : "";
    },
    get$fragment() {
      var t1 = this._fragmentStart,
        t2 = this._uri;
      return t1 < t2.length ? B.JSString_methods.substring$1(t2, t1 + 1) : "";
    },
    get$hashCode(_) {
      var t1 = this._hashCodeCache;
      return t1 == null ? this._hashCodeCache = B.JSString_methods.get$hashCode(this._uri) : t1;
    },
    $eq(_, other) {
      if (other == null)
        return false;
      if (this === other)
        return true;
      return type$.Uri._is(other) && this._uri === other.toString$0(0);
    },
    toString$0(_) {
      return this._uri;
    },
    $isUri: 1
  };
  A._DataUri.prototype = {};
  A.jsify__convert.prototype = {
    call$1(o) {
      var t1, convertedMap, key, convertedList;
      if (A._noJsifyRequired(o))
        return o;
      t1 = this._convertedObjects;
      if (t1.containsKey$1(o))
        return t1.$index(0, o);
      if (o instanceof A.MapBase) {
        convertedMap = {};
        t1.$indexSet(0, o, convertedMap);
        for (t1 = o.get$keys(), t1 = t1.get$iterator(t1); t1.moveNext$0();) {
          key = t1.get$current();
          convertedMap[key] = this.call$1(o.$index(0, key));
        }
        return convertedMap;
      } else if (type$.Iterable_nullable_Object._is(o)) {
        convertedList = [];
        t1.$indexSet(0, o, convertedList);
        B.JSArray_methods.addAll$1(convertedList, J.map$1$1$ax(o, this, type$.dynamic));
        return convertedList;
      } else
        return o;
    },
    $signature: 20
  };
  A.promiseToFuture_closure.prototype = {
    call$1(r) {
      return this.completer.complete$1(this.T._eval$1("0/?")._as(r));
    },
    $signature: 1
  };
  A.promiseToFuture_closure0.prototype = {
    call$1(e) {
      if (e == null)
        return this.completer.completeError$1(new A.NullRejectionException(e === undefined));
      return this.completer.completeError$1(e);
    },
    $signature: 1
  };
  A.NullRejectionException.prototype = {
    toString$0(_) {
      return "Promise was rejected with a value of `" + (this.isUndefined ? "undefined" : "null") + "`.";
    }
  };
  A.Context.prototype = {
    joinAll$1(parts) {
      var t1, t2, t3, needsSeparator, isAbsoluteAndNotRootRelative, t4, t5, parsed, path, t6;
      type$.Iterable_String._as(parts);
      for (t1 = parts.$ti, t2 = t1._eval$1("bool(Iterable.E)")._as(new A.Context_joinAll_closure()), t3 = parts.get$iterator(parts), t1 = new A.WhereIterator(t3, t2, t1._eval$1("WhereIterator<Iterable.E>")), t2 = this.style, needsSeparator = false, isAbsoluteAndNotRootRelative = false, t4 = ""; t1.moveNext$0();) {
        t5 = t3.get$current();
        if (t2.isRootRelative$1(t5) && isAbsoluteAndNotRootRelative) {
          parsed = A.ParsedPath_ParsedPath$parse(t5, t2);
          path = t4.charCodeAt(0) == 0 ? t4 : t4;
          t4 = B.JSString_methods.substring$2(path, 0, t2.rootLength$2$withDrive(path, true));
          parsed.root = t4;
          if (t2.needsSeparator$1(t4))
            B.JSArray_methods.$indexSet(parsed.separators, 0, t2.get$separator());
          t4 = "" + parsed.toString$0(0);
        } else if (t2.rootLength$1(t5) > 0) {
          isAbsoluteAndNotRootRelative = !t2.isRootRelative$1(t5);
          t4 = "" + t5;
        } else {
          t6 = t5.length;
          if (t6 !== 0) {
            if (0 >= t6)
              return A.ioore(t5, 0);
            t6 = t2.containsSeparator$1(t5[0]);
          } else
            t6 = false;
          if (!t6)
            if (needsSeparator)
              t4 += t2.get$separator();
          t4 += t5;
        }
        needsSeparator = t2.needsSeparator$1(t5);
      }
      return t4.charCodeAt(0) == 0 ? t4 : t4;
    }
  };
  A.Context_joinAll_closure.prototype = {
    call$1(part) {
      return A._asString(part) !== "";
    },
    $signature: 21
  };
  A._validateArgList_closure.prototype = {
    call$1(arg) {
      A._asStringQ(arg);
      return arg == null ? "null" : '"' + arg + '"';
    },
    $signature: 22
  };
  A.InternalStyle.prototype = {
    getRoot$1(path) {
      var t1,
        $length = this.rootLength$1(path);
      if ($length > 0)
        return B.JSString_methods.substring$2(path, 0, $length);
      if (this.isRootRelative$1(path)) {
        if (0 >= path.length)
          return A.ioore(path, 0);
        t1 = path[0];
      } else
        t1 = null;
      return t1;
    }
  };
  A.ParsedPath.prototype = {
    toString$0(_) {
      var t2, t3, t4, t5, i,
        t1 = this.root;
      t1 = t1 != null ? "" + t1 : "";
      for (t2 = this.parts, t3 = this.separators, t4 = t2.length, t5 = t3.length, i = 0; i < t4; ++i) {
        if (!(i < t5))
          return A.ioore(t3, i);
        t1 = t1 + t3[i] + t2[i];
      }
      t1 += B.JSArray_methods.get$last(t3);
      return t1.charCodeAt(0) == 0 ? t1 : t1;
    }
  };
  A.Style.prototype = {
    toString$0(_) {
      return this.get$name();
    }
  };
  A.PosixStyle.prototype = {
    containsSeparator$1(path) {
      return B.JSString_methods.contains$1(path, "/");
    },
    isSeparator$1(codeUnit) {
      return codeUnit === 47;
    },
    needsSeparator$1(path) {
      var t2,
        t1 = path.length;
      if (t1 !== 0) {
        t2 = t1 - 1;
        if (!(t2 >= 0))
          return A.ioore(path, t2);
        t2 = path.charCodeAt(t2) !== 47;
        t1 = t2;
      } else
        t1 = false;
      return t1;
    },
    rootLength$2$withDrive(path, withDrive) {
      var t1 = path.length;
      if (t1 !== 0) {
        if (0 >= t1)
          return A.ioore(path, 0);
        t1 = path.charCodeAt(0) === 47;
      } else
        t1 = false;
      if (t1)
        return 1;
      return 0;
    },
    rootLength$1(path) {
      return this.rootLength$2$withDrive(path, false);
    },
    isRootRelative$1(path) {
      return false;
    },
    get$name() {
      return "posix";
    },
    get$separator() {
      return "/";
    }
  };
  A.UrlStyle.prototype = {
    containsSeparator$1(path) {
      return B.JSString_methods.contains$1(path, "/");
    },
    isSeparator$1(codeUnit) {
      return codeUnit === 47;
    },
    needsSeparator$1(path) {
      var t2,
        t1 = path.length;
      if (t1 === 0)
        return false;
      t2 = t1 - 1;
      if (!(t2 >= 0))
        return A.ioore(path, t2);
      if (path.charCodeAt(t2) !== 47)
        return true;
      return B.JSString_methods.endsWith$1(path, "://") && this.rootLength$1(path) === t1;
    },
    rootLength$2$withDrive(path, withDrive) {
      var i, codeUnit, index, t2,
        t1 = path.length;
      if (t1 === 0)
        return 0;
      if (0 >= t1)
        return A.ioore(path, 0);
      if (path.charCodeAt(0) === 47)
        return 1;
      for (i = 0; i < t1; ++i) {
        codeUnit = path.charCodeAt(i);
        if (codeUnit === 47)
          return 0;
        if (codeUnit === 58) {
          if (i === 0)
            return 0;
          index = B.JSString_methods.indexOf$2(path, "/", B.JSString_methods.startsWith$2(path, "//", i + 1) ? i + 3 : i);
          if (index <= 0)
            return t1;
          if (!withDrive || t1 < index + 3)
            return index;
          if (!B.JSString_methods.startsWith$1(path, "file://"))
            return index;
          if (!A.isDriveLetter(path, index + 1))
            return index;
          t2 = index + 3;
          return t1 === t2 ? t2 : index + 4;
        }
      }
      return 0;
    },
    rootLength$1(path) {
      return this.rootLength$2$withDrive(path, false);
    },
    isRootRelative$1(path) {
      var t1 = path.length;
      if (t1 !== 0) {
        if (0 >= t1)
          return A.ioore(path, 0);
        t1 = path.charCodeAt(0) === 47;
      } else
        t1 = false;
      return t1;
    },
    get$name() {
      return "url";
    },
    get$separator() {
      return "/";
    }
  };
  A.WindowsStyle.prototype = {
    containsSeparator$1(path) {
      return B.JSString_methods.contains$1(path, "/");
    },
    isSeparator$1(codeUnit) {
      return codeUnit === 47 || codeUnit === 92;
    },
    needsSeparator$1(path) {
      var t2,
        t1 = path.length;
      if (t1 === 0)
        return false;
      t2 = t1 - 1;
      if (!(t2 >= 0))
        return A.ioore(path, t2);
      t2 = path.charCodeAt(t2);
      return !(t2 === 47 || t2 === 92);
    },
    rootLength$2$withDrive(path, withDrive) {
      var t2, index,
        t1 = path.length;
      if (t1 === 0)
        return 0;
      if (0 >= t1)
        return A.ioore(path, 0);
      if (path.charCodeAt(0) === 47)
        return 1;
      if (path.charCodeAt(0) === 92) {
        if (t1 >= 2) {
          if (1 >= t1)
            return A.ioore(path, 1);
          t2 = path.charCodeAt(1) !== 92;
        } else
          t2 = true;
        if (t2)
          return 1;
        index = B.JSString_methods.indexOf$2(path, "\\", 2);
        if (index > 0) {
          index = B.JSString_methods.indexOf$2(path, "\\", index + 1);
          if (index > 0)
            return index;
        }
        return t1;
      }
      if (t1 < 3)
        return 0;
      if (!A.isAlphabetic(path.charCodeAt(0)))
        return 0;
      if (path.charCodeAt(1) !== 58)
        return 0;
      t1 = path.charCodeAt(2);
      if (!(t1 === 47 || t1 === 92))
        return 0;
      return 3;
    },
    rootLength$1(path) {
      return this.rootLength$2$withDrive(path, false);
    },
    isRootRelative$1(path) {
      return this.rootLength$1(path) === 1;
    },
    get$name() {
      return "windows";
    },
    get$separator() {
      return "\\";
    }
  };
  (function aliases() {
    var _ = J.LegacyJavaScriptObject.prototype;
    _.super$LegacyJavaScriptObject$toString = _.toString$0;
  })();
  (function installTearOffs() {
    var _static_1 = hunkHelpers._static_1,
      _static_0 = hunkHelpers._static_0;
    _static_1(A, "async__AsyncRun__scheduleImmediateJsOverride$closure", "_AsyncRun__scheduleImmediateJsOverride", 2);
    _static_1(A, "async__AsyncRun__scheduleImmediateWithSetImmediate$closure", "_AsyncRun__scheduleImmediateWithSetImmediate", 2);
    _static_1(A, "async__AsyncRun__scheduleImmediateWithTimer$closure", "_AsyncRun__scheduleImmediateWithTimer", 2);
    _static_0(A, "async___startMicrotaskLoop$closure", "_startMicrotaskLoop", 0);
    _static_1(A, "core_Uri_decodeComponent$closure", "Uri_decodeComponent", 23);
  })();
  (function inheritance() {
    var _mixin = hunkHelpers.mixin,
      _inherit = hunkHelpers.inherit,
      _inheritMany = hunkHelpers.inheritMany;
    _inherit(A.Object, null);
    _inheritMany(A.Object, [A.JS_CONST, J.Interceptor, J.ArrayIterator, A.Error, A.ListBase, A.Iterable, A.ListIterator, A.MappedIterator, A.WhereIterator, A.WhereTypeIterator, A.FixedLengthListMixin, A.UnmodifiableListMixin, A.TypeErrorDecoder, A.NullThrownFromJavaScriptException, A.ExceptionAndStackTrace, A._StackTrace, A.Closure, A.MapBase, A.LinkedHashMapCell, A.LinkedHashMapKeyIterator, A.JSSyntaxRegExp, A._MatchImplementation, A._AllMatchesIterator, A.StringMatch, A._StringAllMatchesIterator, A.Rti, A._FunctionParameters, A._Type, A._TimerImpl, A._AsyncAwaitCompleter, A.AsyncError, A._Completer, A._FutureListener, A._Future, A._AsyncCallbackEntry, A._StreamIterator, A._Zone, A._HashMapKeyIterator, A.Codec, A.Converter, A._Utf8Decoder, A.OutOfMemoryError, A.StackOverflowError, A._Exception, A.FormatException, A.Null, A._StringStackTrace, A.StringBuffer, A._Uri, A.UriData, A._SimpleUri, A.NullRejectionException, A.Context, A.Style, A.ParsedPath]);
    _inheritMany(J.Interceptor, [J.JSBool, J.JSNull, J.JavaScriptObject, J.JavaScriptBigInt, J.JavaScriptSymbol, J.JSNumber, J.JSString]);
    _inheritMany(J.JavaScriptObject, [J.LegacyJavaScriptObject, J.JSArray, A.NativeByteBuffer, A.NativeTypedData]);
    _inheritMany(J.LegacyJavaScriptObject, [J.PlainJavaScriptObject, J.UnknownJavaScriptObject, J.JavaScriptFunction]);
    _inherit(J.JSUnmodifiableArray, J.JSArray);
    _inheritMany(J.JSNumber, [J.JSInt, J.JSNumNotInt]);
    _inheritMany(A.Error, [A.LateError, A.TypeError, A.JsNoSuchMethodError, A.UnknownJsTypeError, A._CyclicInitializationError, A.RuntimeError, A.AssertionError, A._Error, A.ArgumentError, A.UnsupportedError, A.UnimplementedError, A.StateError, A.ConcurrentModificationError]);
    _inherit(A.UnmodifiableListBase, A.ListBase);
    _inherit(A.CodeUnits, A.UnmodifiableListBase);
    _inheritMany(A.Iterable, [A.EfficientLengthIterable, A.MappedIterable, A.WhereIterable, A.WhereTypeIterable, A._AllMatchesIterable, A._StringAllMatchesIterable]);
    _inheritMany(A.EfficientLengthIterable, [A.ListIterable, A.LinkedHashMapKeyIterable, A._HashMapKeyIterable]);
    _inheritMany(A.ListIterable, [A.SubListIterable, A.MappedListIterable]);
    _inherit(A.EfficientLengthMappedIterable, A.MappedIterable);
    _inherit(A.NullError, A.TypeError);
    _inheritMany(A.Closure, [A.Closure0Args, A.Closure2Args, A.TearOffClosure, A.initHooks_closure, A.initHooks_closure1, A._AsyncRun__initializeScheduleImmediate_internalCallback, A._AsyncRun__initializeScheduleImmediate_closure, A._awaitOnObject_closure, A._Future__chainForeignFuture_closure, A._Future__propagateToListeners_handleWhenCompleteCallback_closure, A._createTables_setChars, A._createTables_setRange, A.jsify__convert, A.promiseToFuture_closure, A.promiseToFuture_closure0, A.Context_joinAll_closure, A._validateArgList_closure]);
    _inheritMany(A.TearOffClosure, [A.StaticClosure, A.BoundClosure]);
    _inherit(A._AssertionError, A.AssertionError);
    _inheritMany(A.MapBase, [A.JsLinkedHashMap, A._HashMap]);
    _inheritMany(A.Closure2Args, [A.initHooks_closure0, A._awaitOnObject_closure0, A._wrapJsFunctionForAsync_closure, A._Future__chainForeignFuture_closure0, A.MapBase_mapToString_closure, A.Uri__parseIPv4Address_error, A.Uri_parseIPv6Address_error, A.Uri_parseIPv6Address_parseHex, A._createTables_build]);
    _inheritMany(A.NativeTypedData, [A.NativeByteData, A.NativeTypedArray]);
    _inheritMany(A.NativeTypedArray, [A._NativeTypedArrayOfDouble_NativeTypedArray_ListMixin, A._NativeTypedArrayOfInt_NativeTypedArray_ListMixin]);
    _inherit(A._NativeTypedArrayOfDouble_NativeTypedArray_ListMixin_FixedLengthListMixin, A._NativeTypedArrayOfDouble_NativeTypedArray_ListMixin);
    _inherit(A.NativeTypedArrayOfDouble, A._NativeTypedArrayOfDouble_NativeTypedArray_ListMixin_FixedLengthListMixin);
    _inherit(A._NativeTypedArrayOfInt_NativeTypedArray_ListMixin_FixedLengthListMixin, A._NativeTypedArrayOfInt_NativeTypedArray_ListMixin);
    _inherit(A.NativeTypedArrayOfInt, A._NativeTypedArrayOfInt_NativeTypedArray_ListMixin_FixedLengthListMixin);
    _inheritMany(A.NativeTypedArrayOfDouble, [A.NativeFloat32List, A.NativeFloat64List]);
    _inheritMany(A.NativeTypedArrayOfInt, [A.NativeInt16List, A.NativeInt32List, A.NativeInt8List, A.NativeUint16List, A.NativeUint32List, A.NativeUint8ClampedList, A.NativeUint8List]);
    _inherit(A._TypeError, A._Error);
    _inheritMany(A.Closure0Args, [A._AsyncRun__scheduleImmediateJsOverride_internalCallback, A._AsyncRun__scheduleImmediateWithSetImmediate_internalCallback, A._TimerImpl_internalCallback, A._Future__addListener_closure, A._Future__prependListeners_closure, A._Future__chainForeignFuture_closure1, A._Future__chainCoreFutureAsync_closure, A._Future__asyncCompleteWithValue_closure, A._Future__asyncCompleteError_closure, A._Future__propagateToListeners_handleWhenCompleteCallback, A._Future__propagateToListeners_handleValueCallback, A._Future__propagateToListeners_handleError, A._rootHandleError_closure, A._RootZone_bindCallbackGuarded_closure, A.Utf8Decoder__decoder_closure, A.Utf8Decoder__decoderNonfatal_closure]);
    _inherit(A._AsyncCompleter, A._Completer);
    _inherit(A._RootZone, A._Zone);
    _inherit(A._IdentityHashMap, A._HashMap);
    _inheritMany(A.Codec, [A.Base64Codec, A.Encoding]);
    _inheritMany(A.Converter, [A.Base64Encoder, A.Utf8Decoder]);
    _inherit(A.Utf8Codec, A.Encoding);
    _inheritMany(A.ArgumentError, [A.RangeError, A.IndexError]);
    _inherit(A._DataUri, A._Uri);
    _inherit(A.InternalStyle, A.Style);
    _inheritMany(A.InternalStyle, [A.PosixStyle, A.UrlStyle, A.WindowsStyle]);
    _mixin(A.UnmodifiableListBase, A.UnmodifiableListMixin);
    _mixin(A._NativeTypedArrayOfDouble_NativeTypedArray_ListMixin, A.ListBase);
    _mixin(A._NativeTypedArrayOfDouble_NativeTypedArray_ListMixin_FixedLengthListMixin, A.FixedLengthListMixin);
    _mixin(A._NativeTypedArrayOfInt_NativeTypedArray_ListMixin, A.ListBase);
    _mixin(A._NativeTypedArrayOfInt_NativeTypedArray_ListMixin_FixedLengthListMixin, A.FixedLengthListMixin);
  })();
  var init = {
    typeUniverse: {eC: new Map(), tR: {}, eT: {}, tPV: {}, sEA: []},
    mangledGlobalNames: {int: "int", double: "double", num: "num", String: "String", bool: "bool", Null: "Null", List: "List"},
    mangledNames: {},
    types: ["~()", "~(@)", "~(~())", "Null(@)", "Null()", "@()", "~(Uint8List,String,int)", "@(@)", "@(@,String)", "@(String)", "Null(~())", "Null(@,StackTrace)", "~(int,@)", "Null(Object,StackTrace)", "_Future<@>(@)", "~(Object?,Object?)", "~(String,int)", "~(String,int?)", "int(int,int)", "Uint8List(@,@)", "Object?(Object?)", "bool(String)", "String(String?)", "String(String)"],
    interceptorsByTag: null,
    leafTags: null,
    arrayRti: Symbol("$ti")
  };
  A._Universe_addRules(init.typeUniverse, JSON.parse('{"PlainJavaScriptObject":"LegacyJavaScriptObject","UnknownJavaScriptObject":"LegacyJavaScriptObject","JavaScriptFunction":"LegacyJavaScriptObject","JSBool":{"bool":[],"TrustedGetRuntimeType":[]},"JSNull":{"Null":[],"TrustedGetRuntimeType":[]},"JavaScriptObject":{"JSObject":[]},"LegacyJavaScriptObject":{"JSObject":[]},"JSArray":{"List":["1"],"EfficientLengthIterable":["1"],"JSObject":[],"Iterable":["1"]},"JSUnmodifiableArray":{"JSArray":["1"],"List":["1"],"EfficientLengthIterable":["1"],"JSObject":[],"Iterable":["1"]},"ArrayIterator":{"Iterator":["1"]},"JSNumber":{"double":[],"num":[]},"JSInt":{"double":[],"int":[],"num":[],"TrustedGetRuntimeType":[]},"JSNumNotInt":{"double":[],"num":[],"TrustedGetRuntimeType":[]},"JSString":{"String":[],"Pattern":[],"TrustedGetRuntimeType":[]},"LateError":{"Error":[]},"CodeUnits":{"ListBase":["int"],"UnmodifiableListMixin":["int"],"List":["int"],"EfficientLengthIterable":["int"],"Iterable":["int"],"ListBase.E":"int","UnmodifiableListMixin.E":"int"},"EfficientLengthIterable":{"Iterable":["1"]},"ListIterable":{"EfficientLengthIterable":["1"],"Iterable":["1"]},"SubListIterable":{"ListIterable":["1"],"EfficientLengthIterable":["1"],"Iterable":["1"],"Iterable.E":"1","ListIterable.E":"1"},"ListIterator":{"Iterator":["1"]},"MappedIterable":{"Iterable":["2"],"Iterable.E":"2"},"EfficientLengthMappedIterable":{"MappedIterable":["1","2"],"EfficientLengthIterable":["2"],"Iterable":["2"],"Iterable.E":"2"},"MappedIterator":{"Iterator":["2"]},"MappedListIterable":{"ListIterable":["2"],"EfficientLengthIterable":["2"],"Iterable":["2"],"Iterable.E":"2","ListIterable.E":"2"},"WhereIterable":{"Iterable":["1"],"Iterable.E":"1"},"WhereIterator":{"Iterator":["1"]},"WhereTypeIterable":{"Iterable":["1"],"Iterable.E":"1"},"WhereTypeIterator":{"Iterator":["1"]},"UnmodifiableListBase":{"ListBase":["1"],"UnmodifiableListMixin":["1"],"List":["1"],"EfficientLengthIterable":["1"],"Iterable":["1"]},"NullError":{"TypeError":[],"Error":[]},"JsNoSuchMethodError":{"Error":[]},"UnknownJsTypeError":{"Error":[]},"_StackTrace":{"StackTrace":[]},"Closure":{"Function":[]},"Closure0Args":{"Function":[]},"Closure2Args":{"Function":[]},"TearOffClosure":{"Function":[]},"StaticClosure":{"Function":[]},"BoundClosure":{"Function":[]},"_CyclicInitializationError":{"Error":[]},"RuntimeError":{"Error":[]},"_AssertionError":{"Error":[]},"JsLinkedHashMap":{"MapBase":["1","2"],"LinkedHashMap":["1","2"],"Map":["1","2"]},"LinkedHashMapKeyIterable":{"EfficientLengthIterable":["1"],"Iterable":["1"],"Iterable.E":"1"},"LinkedHashMapKeyIterator":{"Iterator":["1"]},"JSSyntaxRegExp":{"RegExp":[],"Pattern":[]},"_MatchImplementation":{"RegExpMatch":[],"Match":[]},"_AllMatchesIterable":{"Iterable":["RegExpMatch"],"Iterable.E":"RegExpMatch"},"_AllMatchesIterator":{"Iterator":["RegExpMatch"]},"StringMatch":{"Match":[]},"_StringAllMatchesIterable":{"Iterable":["Match"],"Iterable.E":"Match"},"_StringAllMatchesIterator":{"Iterator":["Match"]},"NativeByteBuffer":{"JSObject":[],"ByteBuffer":[],"TrustedGetRuntimeType":[]},"NativeTypedData":{"JSObject":[]},"NativeByteData":{"ByteData":[],"JSObject":[],"TrustedGetRuntimeType":[]},"NativeTypedArray":{"JavaScriptIndexingBehavior":["1"],"JSObject":[]},"NativeTypedArrayOfDouble":{"ListBase":["double"],"JavaScriptIndexingBehavior":["double"],"List":["double"],"EfficientLengthIterable":["double"],"JSObject":[],"Iterable":["double"],"FixedLengthListMixin":["double"]},"NativeTypedArrayOfInt":{"ListBase":["int"],"JavaScriptIndexingBehavior":["int"],"List":["int"],"EfficientLengthIterable":["int"],"JSObject":[],"Iterable":["int"],"FixedLengthListMixin":["int"]},"NativeFloat32List":{"ListBase":["double"],"Float32List":[],"JavaScriptIndexingBehavior":["double"],"List":["double"],"EfficientLengthIterable":["double"],"JSObject":[],"Iterable":["double"],"FixedLengthListMixin":["double"],"TrustedGetRuntimeType":[],"ListBase.E":"double"},"NativeFloat64List":{"ListBase":["double"],"Float64List":[],"JavaScriptIndexingBehavior":["double"],"List":["double"],"EfficientLengthIterable":["double"],"JSObject":[],"Iterable":["double"],"FixedLengthListMixin":["double"],"TrustedGetRuntimeType":[],"ListBase.E":"double"},"NativeInt16List":{"ListBase":["int"],"Int16List":[],"JavaScriptIndexingBehavior":["int"],"List":["int"],"EfficientLengthIterable":["int"],"JSObject":[],"Iterable":["int"],"FixedLengthListMixin":["int"],"TrustedGetRuntimeType":[],"ListBase.E":"int"},"NativeInt32List":{"ListBase":["int"],"Int32List":[],"JavaScriptIndexingBehavior":["int"],"List":["int"],"EfficientLengthIterable":["int"],"JSObject":[],"Iterable":["int"],"FixedLengthListMixin":["int"],"TrustedGetRuntimeType":[],"ListBase.E":"int"},"NativeInt8List":{"ListBase":["int"],"Int8List":[],"JavaScriptIndexingBehavior":["int"],"List":["int"],"EfficientLengthIterable":["int"],"JSObject":[],"Iterable":["int"],"FixedLengthListMixin":["int"],"TrustedGetRuntimeType":[],"ListBase.E":"int"},"NativeUint16List":{"ListBase":["int"],"Uint16List":[],"JavaScriptIndexingBehavior":["int"],"List":["int"],"EfficientLengthIterable":["int"],"JSObject":[],"Iterable":["int"],"FixedLengthListMixin":["int"],"TrustedGetRuntimeType":[],"ListBase.E":"int"},"NativeUint32List":{"ListBase":["int"],"Uint32List":[],"JavaScriptIndexingBehavior":["int"],"List":["int"],"EfficientLengthIterable":["int"],"JSObject":[],"Iterable":["int"],"FixedLengthListMixin":["int"],"TrustedGetRuntimeType":[],"ListBase.E":"int"},"NativeUint8ClampedList":{"ListBase":["int"],"Uint8ClampedList":[],"JavaScriptIndexingBehavior":["int"],"List":["int"],"EfficientLengthIterable":["int"],"JSObject":[],"Iterable":["int"],"FixedLengthListMixin":["int"],"TrustedGetRuntimeType":[],"ListBase.E":"int"},"NativeUint8List":{"ListBase":["int"],"Uint8List":[],"JavaScriptIndexingBehavior":["int"],"List":["int"],"EfficientLengthIterable":["int"],"JSObject":[],"Iterable":["int"],"FixedLengthListMixin":["int"],"TrustedGetRuntimeType":[],"ListBase.E":"int"},"_Error":{"Error":[]},"_TypeError":{"TypeError":[],"Error":[]},"_Future":{"Future":["1"]},"AsyncError":{"Error":[]},"_AsyncCompleter":{"_Completer":["1"]},"_Zone":{"Zone":[]},"_RootZone":{"_Zone":[],"Zone":[]},"_HashMap":{"MapBase":["1","2"],"Map":["1","2"]},"_IdentityHashMap":{"_HashMap":["1","2"],"MapBase":["1","2"],"Map":["1","2"]},"_HashMapKeyIterable":{"EfficientLengthIterable":["1"],"Iterable":["1"],"Iterable.E":"1"},"_HashMapKeyIterator":{"Iterator":["1"]},"ListBase":{"List":["1"],"EfficientLengthIterable":["1"],"Iterable":["1"]},"MapBase":{"Map":["1","2"]},"Base64Codec":{"Codec":["List<int>","String"]},"Encoding":{"Codec":["String","List<int>"]},"Utf8Codec":{"Codec":["String","List<int>"]},"double":{"num":[]},"int":{"num":[]},"List":{"EfficientLengthIterable":["1"],"Iterable":["1"]},"RegExpMatch":{"Match":[]},"String":{"Pattern":[]},"AssertionError":{"Error":[]},"TypeError":{"Error":[]},"ArgumentError":{"Error":[]},"RangeError":{"Error":[]},"IndexError":{"Error":[]},"UnsupportedError":{"Error":[]},"UnimplementedError":{"Error":[]},"StateError":{"Error":[]},"ConcurrentModificationError":{"Error":[]},"OutOfMemoryError":{"Error":[]},"StackOverflowError":{"Error":[]},"_StringStackTrace":{"StackTrace":[]},"StringBuffer":{"StringSink":[]},"_Uri":{"Uri":[]},"_SimpleUri":{"Uri":[]},"_DataUri":{"Uri":[]},"PosixStyle":{"InternalStyle":[]},"UrlStyle":{"InternalStyle":[]},"WindowsStyle":{"InternalStyle":[]},"Int8List":{"List":["int"],"EfficientLengthIterable":["int"],"Iterable":["int"]},"Uint8List":{"List":["int"],"EfficientLengthIterable":["int"],"Iterable":["int"]},"Uint8ClampedList":{"List":["int"],"EfficientLengthIterable":["int"],"Iterable":["int"]},"Int16List":{"List":["int"],"EfficientLengthIterable":["int"],"Iterable":["int"]},"Uint16List":{"List":["int"],"EfficientLengthIterable":["int"],"Iterable":["int"]},"Int32List":{"List":["int"],"EfficientLengthIterable":["int"],"Iterable":["int"]},"Uint32List":{"List":["int"],"EfficientLengthIterable":["int"],"Iterable":["int"]},"Float32List":{"List":["double"],"EfficientLengthIterable":["double"],"Iterable":["double"]},"Float64List":{"List":["double"],"EfficientLengthIterable":["double"],"Iterable":["double"]}}'));
  A._Universe_addErasedTypes(init.typeUniverse, JSON.parse('{"EfficientLengthIterable":1,"UnmodifiableListBase":1,"NativeTypedArray":1,"Converter":2}'));
  var string$ = {
    Error_: "Error handler must accept one Object or one Object and a StackTrace as arguments, and return a value of the returned future's type",
    https_: "https://storage.googleapis.com/dart-archive/channels/"
  };
  var type$ = (function rtii() {
    var findType = A.findType;
    return {
      AsyncError: findType("AsyncError"),
      ByteBuffer: findType("ByteBuffer"),
      ByteData: findType("ByteData"),
      EfficientLengthIterable_dynamic: findType("EfficientLengthIterable<@>"),
      Error: findType("Error"),
      Float32List: findType("Float32List"),
      Float64List: findType("Float64List"),
      Function: findType("Function"),
      FutureOr_String: findType("String/"),
      Future_dynamic: findType("Future<@>"),
      Int16List: findType("Int16List"),
      Int32List: findType("Int32List"),
      Int8List: findType("Int8List"),
      Iterable_String: findType("Iterable<String>"),
      Iterable_dynamic: findType("Iterable<@>"),
      Iterable_nullable_Object: findType("Iterable<Object?>"),
      JSArray_Object: findType("JSArray<Object>"),
      JSArray_String: findType("JSArray<String>"),
      JSArray_Uint8List: findType("JSArray<Uint8List>"),
      JSArray_dynamic: findType("JSArray<@>"),
      JSArray_int: findType("JSArray<int>"),
      JSArray_nullable_String: findType("JSArray<String?>"),
      JSNull: findType("JSNull"),
      JSObject: findType("JSObject"),
      JavaScriptFunction: findType("JavaScriptFunction"),
      JavaScriptIndexingBehavior_dynamic: findType("JavaScriptIndexingBehavior<@>"),
      List_String: findType("List<String>"),
      List_int: findType("List<int>"),
      MappedListIterable_String_dynamic: findType("MappedListIterable<String,@>"),
      Null: findType("Null"),
      Object: findType("Object"),
      Record: findType("Record"),
      RegExpMatch: findType("RegExpMatch"),
      StackTrace: findType("StackTrace"),
      String: findType("String"),
      TrustedGetRuntimeType: findType("TrustedGetRuntimeType"),
      TypeError: findType("TypeError"),
      Uint16List: findType("Uint16List"),
      Uint32List: findType("Uint32List"),
      Uint8ClampedList: findType("Uint8ClampedList"),
      Uint8List: findType("Uint8List"),
      UnknownJavaScriptObject: findType("UnknownJavaScriptObject"),
      Uri: findType("Uri"),
      WhereTypeIterable_String: findType("WhereTypeIterable<String>"),
      _Future_dynamic: findType("_Future<@>"),
      _IdentityHashMap_of_nullable_Object_and_nullable_Object: findType("_IdentityHashMap<Object?,Object?>"),
      bool: findType("bool"),
      bool_Function_Object: findType("bool(Object)"),
      double: findType("double"),
      dynamic: findType("@"),
      dynamic_Function: findType("@()"),
      dynamic_Function_Object: findType("@(Object)"),
      dynamic_Function_Object_StackTrace: findType("@(Object,StackTrace)"),
      dynamic_Function_String: findType("@(String)"),
      int: findType("int"),
      legacy_Never: findType("0&*"),
      legacy_Object: findType("Object*"),
      nullable_Future_Null: findType("Future<Null>?"),
      nullable_JSObject: findType("JSObject?"),
      nullable_Object: findType("Object?"),
      nullable__FutureListener_dynamic_dynamic: findType("_FutureListener<@,@>?"),
      num: findType("num"),
      void: findType("~"),
      void_Function: findType("~()")
    };
  })();
  (function constants() {
    var makeConstList = hunkHelpers.makeConstList;
    B.Interceptor_methods = J.Interceptor.prototype;
    B.JSArray_methods = J.JSArray.prototype;
    B.JSInt_methods = J.JSInt.prototype;
    B.JSString_methods = J.JSString.prototype;
    B.JavaScriptFunction_methods = J.JavaScriptFunction.prototype;
    B.JavaScriptObject_methods = J.JavaScriptObject.prototype;
    B.NativeUint8List_methods = A.NativeUint8List.prototype;
    B.PlainJavaScriptObject_methods = J.PlainJavaScriptObject.prototype;
    B.UnknownJavaScriptObject_methods = J.UnknownJavaScriptObject.prototype;
    B.C_Base64Encoder = new A.Base64Encoder();
    B.C_Base64Codec = new A.Base64Codec();
    B.C_JS_CONST = function getTagFallback(o) {
  var s = Object.prototype.toString.call(o);
  return s.substring(8, s.length - 1);
};
    B.C_JS_CONST0 = function() {
  var toStringFunction = Object.prototype.toString;
  function getTag(o) {
    var s = toStringFunction.call(o);
    return s.substring(8, s.length - 1);
  }
  function getUnknownTag(object, tag) {
    if (/^HTML[A-Z].*Element$/.test(tag)) {
      var name = toStringFunction.call(object);
      if (name == "[object Object]") return null;
      return "HTMLElement";
    }
  }
  function getUnknownTagGenericBrowser(object, tag) {
    if (self.HTMLElement && object instanceof HTMLElement) return "HTMLElement";
    return getUnknownTag(object, tag);
  }
  function prototypeForTag(tag) {
    if (typeof window == "undefined") return null;
    if (typeof window[tag] == "undefined") return null;
    var constructor = window[tag];
    if (typeof constructor != "function") return null;
    return constructor.prototype;
  }
  function discriminator(tag) { return null; }
  var isBrowser = typeof navigator == "object";
  return {
    getTag: getTag,
    getUnknownTag: isBrowser ? getUnknownTagGenericBrowser : getUnknownTag,
    prototypeForTag: prototypeForTag,
    discriminator: discriminator };
};
    B.C_JS_CONST6 = function(getTagFallback) {
  return function(hooks) {
    if (typeof navigator != "object") return hooks;
    var ua = navigator.userAgent;
    if (ua.indexOf("DumpRenderTree") >= 0) return hooks;
    if (ua.indexOf("Chrome") >= 0) {
      function confirm(p) {
        return typeof window == "object" && window[p] && window[p].name == p;
      }
      if (confirm("Window") && confirm("HTMLElement")) return hooks;
    }
    hooks.getTag = getTagFallback;
  };
};
    B.C_JS_CONST1 = function(hooks) {
  if (typeof dartExperimentalFixupGetTag != "function") return hooks;
  hooks.getTag = dartExperimentalFixupGetTag(hooks.getTag);
};
    B.C_JS_CONST2 = function(hooks) {
  var getTag = hooks.getTag;
  var prototypeForTag = hooks.prototypeForTag;
  function getTagFixed(o) {
    var tag = getTag(o);
    if (tag == "Document") {
      if (!!o.xmlVersion) return "!Document";
      return "!HTMLDocument";
    }
    return tag;
  }
  function prototypeForTagFixed(tag) {
    if (tag == "Document") return null;
    return prototypeForTag(tag);
  }
  hooks.getTag = getTagFixed;
  hooks.prototypeForTag = prototypeForTagFixed;
};
    B.C_JS_CONST5 = function(hooks) {
  var userAgent = typeof navigator == "object" ? navigator.userAgent : "";
  if (userAgent.indexOf("Firefox") == -1) return hooks;
  var getTag = hooks.getTag;
  var quickMap = {
    "BeforeUnloadEvent": "Event",
    "DataTransfer": "Clipboard",
    "GeoGeolocation": "Geolocation",
    "Location": "!Location",
    "WorkerMessageEvent": "MessageEvent",
    "XMLDocument": "!Document"};
  function getTagFirefox(o) {
    var tag = getTag(o);
    return quickMap[tag] || tag;
  }
  hooks.getTag = getTagFirefox;
};
    B.C_JS_CONST4 = function(hooks) {
  var userAgent = typeof navigator == "object" ? navigator.userAgent : "";
  if (userAgent.indexOf("Trident/") == -1) return hooks;
  var getTag = hooks.getTag;
  var quickMap = {
    "BeforeUnloadEvent": "Event",
    "DataTransfer": "Clipboard",
    "HTMLDDElement": "HTMLElement",
    "HTMLDTElement": "HTMLElement",
    "HTMLPhraseElement": "HTMLElement",
    "Position": "Geoposition"
  };
  function getTagIE(o) {
    var tag = getTag(o);
    var newTag = quickMap[tag];
    if (newTag) return newTag;
    if (tag == "Object") {
      if (window.DataView && (o instanceof window.DataView)) return "DataView";
    }
    return tag;
  }
  function prototypeForTagIE(tag) {
    var constructor = window[tag];
    if (constructor == null) return null;
    return constructor.prototype;
  }
  hooks.getTag = getTagIE;
  hooks.prototypeForTag = prototypeForTagIE;
};
    B.C_JS_CONST3 = function(hooks) { return hooks; }
;
    B.C_OutOfMemoryError = new A.OutOfMemoryError();
    B.C_Utf8Codec = new A.Utf8Codec();
    B.C__RootZone = new A._RootZone();
    B.C__StringStackTrace = new A._StringStackTrace();
    B.List_M1A = A._setArrayType(makeConstList([0, 0, 24576, 1023, 65534, 34815, 65534, 18431]), type$.JSArray_int);
    B.List_MMm = A._setArrayType(makeConstList([0, 0, 26624, 1023, 65534, 2047, 65534, 2047]), type$.JSArray_int);
    B.List_OL3 = A._setArrayType(makeConstList([0, 0, 32722, 12287, 65534, 34815, 65534, 18431]), type$.JSArray_int);
    B.List_XRg = A._setArrayType(makeConstList([0, 0, 65490, 12287, 65535, 34815, 65534, 18431]), type$.JSArray_int);
    B.List_YmH = A._setArrayType(makeConstList([0, 0, 32776, 33792, 1, 10240, 0, 0]), type$.JSArray_int);
    B.List_ejq = A._setArrayType(makeConstList([0, 0, 32754, 11263, 65534, 34815, 65534, 18431]), type$.JSArray_int);
    B.List_empty = A._setArrayType(makeConstList([]), type$.JSArray_String);
    B.List_oFp = A._setArrayType(makeConstList([0, 0, 65490, 45055, 65535, 34815, 65534, 18431]), type$.JSArray_int);
    B.List_x64_ia32_arm_arm64 = A._setArrayType(makeConstList(["x64", "ia32", "arm", "arm64"]), type$.JSArray_String);
    B.Type_ByteBuffer_RkP = A.typeLiteral("ByteBuffer");
    B.Type_ByteData_zNC = A.typeLiteral("ByteData");
    B.Type_Float32List_LB7 = A.typeLiteral("Float32List");
    B.Type_Float64List_LB7 = A.typeLiteral("Float64List");
    B.Type_Int16List_uXf = A.typeLiteral("Int16List");
    B.Type_Int32List_O50 = A.typeLiteral("Int32List");
    B.Type_Int8List_ekJ = A.typeLiteral("Int8List");
    B.Type_Uint16List_2bx = A.typeLiteral("Uint16List");
    B.Type_Uint32List_2bx = A.typeLiteral("Uint32List");
    B.Type_Uint8ClampedList_Jik = A.typeLiteral("Uint8ClampedList");
    B.Type_Uint8List_WLA = A.typeLiteral("Uint8List");
    B.Utf8Decoder_false = new A.Utf8Decoder(false);
  })();
  (function staticFields() {
    $._JS_INTEROP_INTERCEPTOR_TAG = null;
    $.toStringVisiting = A._setArrayType([], type$.JSArray_Object);
    $.Primitives__identityHashCodeProperty = null;
    $.BoundClosure__receiverFieldNameCache = null;
    $.BoundClosure__interceptorFieldNameCache = null;
    $.getTagFunction = null;
    $.alternateTagFunction = null;
    $.prototypeForTagFunction = null;
    $.dispatchRecordsForInstanceTags = null;
    $.interceptorsForUncacheableTags = null;
    $.initNativeDispatchFlag = null;
    $._nextCallback = null;
    $._lastCallback = null;
    $._lastPriorityCallback = null;
    $._isInCallbackLoop = false;
    $.Zone__current = B.C__RootZone;
    $.Uri__cachedBaseString = "";
    $.Uri__cachedBaseUri = null;
  })();
  (function lazyInitializers() {
    var _lazyFinal = hunkHelpers.lazyFinal;
    _lazyFinal($, "DART_CLOSURE_PROPERTY_NAME", "$get$DART_CLOSURE_PROPERTY_NAME", () => A.getIsolateAffinityTag("_$dart_dartClosure"));
    _lazyFinal($, "TypeErrorDecoder_noSuchMethodPattern", "$get$TypeErrorDecoder_noSuchMethodPattern", () => A.TypeErrorDecoder_extractPattern(A.TypeErrorDecoder_provokeCallErrorOn({
      toString: function() {
        return "$receiver$";
      }
    })));
    _lazyFinal($, "TypeErrorDecoder_notClosurePattern", "$get$TypeErrorDecoder_notClosurePattern", () => A.TypeErrorDecoder_extractPattern(A.TypeErrorDecoder_provokeCallErrorOn({$method$: null,
      toString: function() {
        return "$receiver$";
      }
    })));
    _lazyFinal($, "TypeErrorDecoder_nullCallPattern", "$get$TypeErrorDecoder_nullCallPattern", () => A.TypeErrorDecoder_extractPattern(A.TypeErrorDecoder_provokeCallErrorOn(null)));
    _lazyFinal($, "TypeErrorDecoder_nullLiteralCallPattern", "$get$TypeErrorDecoder_nullLiteralCallPattern", () => A.TypeErrorDecoder_extractPattern(function() {
      var $argumentsExpr$ = "$arguments$";
      try {
        null.$method$($argumentsExpr$);
      } catch (e) {
        return e.message;
      }
    }()));
    _lazyFinal($, "TypeErrorDecoder_undefinedCallPattern", "$get$TypeErrorDecoder_undefinedCallPattern", () => A.TypeErrorDecoder_extractPattern(A.TypeErrorDecoder_provokeCallErrorOn(void 0)));
    _lazyFinal($, "TypeErrorDecoder_undefinedLiteralCallPattern", "$get$TypeErrorDecoder_undefinedLiteralCallPattern", () => A.TypeErrorDecoder_extractPattern(function() {
      var $argumentsExpr$ = "$arguments$";
      try {
        (void 0).$method$($argumentsExpr$);
      } catch (e) {
        return e.message;
      }
    }()));
    _lazyFinal($, "TypeErrorDecoder_nullPropertyPattern", "$get$TypeErrorDecoder_nullPropertyPattern", () => A.TypeErrorDecoder_extractPattern(A.TypeErrorDecoder_provokePropertyErrorOn(null)));
    _lazyFinal($, "TypeErrorDecoder_nullLiteralPropertyPattern", "$get$TypeErrorDecoder_nullLiteralPropertyPattern", () => A.TypeErrorDecoder_extractPattern(function() {
      try {
        null.$method$;
      } catch (e) {
        return e.message;
      }
    }()));
    _lazyFinal($, "TypeErrorDecoder_undefinedPropertyPattern", "$get$TypeErrorDecoder_undefinedPropertyPattern", () => A.TypeErrorDecoder_extractPattern(A.TypeErrorDecoder_provokePropertyErrorOn(void 0)));
    _lazyFinal($, "TypeErrorDecoder_undefinedLiteralPropertyPattern", "$get$TypeErrorDecoder_undefinedLiteralPropertyPattern", () => A.TypeErrorDecoder_extractPattern(function() {
      try {
        (void 0).$method$;
      } catch (e) {
        return e.message;
      }
    }()));
    _lazyFinal($, "_AsyncRun__scheduleImmediateClosure", "$get$_AsyncRun__scheduleImmediateClosure", () => A._AsyncRun__initializeScheduleImmediate());
    _lazyFinal($, "Utf8Decoder__decoder", "$get$Utf8Decoder__decoder", () => new A.Utf8Decoder__decoder_closure().call$0());
    _lazyFinal($, "Utf8Decoder__decoderNonfatal", "$get$Utf8Decoder__decoderNonfatal", () => new A.Utf8Decoder__decoderNonfatal_closure().call$0());
    _lazyFinal($, "_Base64Decoder__inverseAlphabet", "$get$_Base64Decoder__inverseAlphabet", () => new Int8Array(A._ensureNativeList(A._setArrayType([-2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -1, -2, -2, -2, -2, -2, 62, -2, 62, -2, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -2, -2, -2, -1, -2, -2, -2, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -2, -2, -2, -2, 63, -2, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -2, -2, -2, -2, -2], type$.JSArray_int))));
    _lazyFinal($, "_Uri__isWindowsCached", "$get$_Uri__isWindowsCached", () => typeof process != "undefined" && Object.prototype.toString.call(process) == "[object process]" && process.platform == "win32");
    _lazyFinal($, "_scannerTables", "$get$_scannerTables", () => A._createTables());
    _lazyFinal($, "context", "$get$context", () => new A.Context($.$get$Style_platform()));
    _lazyFinal($, "Style_posix", "$get$Style_posix", () => new A.PosixStyle(A.RegExp_RegExp("/"), A.RegExp_RegExp("[^/]$"), A.RegExp_RegExp("^/")));
    _lazyFinal($, "Style_windows", "$get$Style_windows", () => new A.WindowsStyle(A.RegExp_RegExp("[/\\\\]"), A.RegExp_RegExp("[^/\\\\]$"), A.RegExp_RegExp("^(\\\\\\\\[^\\\\]+\\\\[^\\\\/]+|[a-zA-Z]:[/\\\\])"), A.RegExp_RegExp("^[/\\\\](?![/\\\\])")));
    _lazyFinal($, "Style_url", "$get$Style_url", () => new A.UrlStyle(A.RegExp_RegExp("/"), A.RegExp_RegExp("(^[a-zA-Z][-+.a-zA-Z\\d]*://|[^/])$"), A.RegExp_RegExp("[a-zA-Z][-+.a-zA-Z\\d]*://[^/]*"), A.RegExp_RegExp("^/")));
    _lazyFinal($, "Style_platform", "$get$Style_platform", () => A.Style__getPlatformStyle());
  })();
  (function nativeSupport() {
    !function() {
      var intern = function(s) {
        var o = {};
        o[s] = 1;
        return Object.keys(hunkHelpers.convertToFastObject(o))[0];
      };
      init.getIsolateTag = function(name) {
        return intern("___dart_" + name + init.isolateTag);
      };
      var tableProperty = "___dart_isolate_tags_";
      var usedProperties = Object[tableProperty] || (Object[tableProperty] = Object.create(null));
      var rootProperty = "_ZxYxX";
      for (var i = 0;; i++) {
        var property = intern(rootProperty + "_" + i + "_");
        if (!(property in usedProperties)) {
          usedProperties[property] = 1;
          init.isolateTag = property;
          break;
        }
      }
      init.dispatchPropertyName = init.getIsolateTag("dispatch_record");
    }();
    hunkHelpers.setOrUpdateInterceptorsByTag({ArrayBuffer: A.NativeByteBuffer, ArrayBufferView: A.NativeTypedData, DataView: A.NativeByteData, Float32Array: A.NativeFloat32List, Float64Array: A.NativeFloat64List, Int16Array: A.NativeInt16List, Int32Array: A.NativeInt32List, Int8Array: A.NativeInt8List, Uint16Array: A.NativeUint16List, Uint32Array: A.NativeUint32List, Uint8ClampedArray: A.NativeUint8ClampedList, CanvasPixelArray: A.NativeUint8ClampedList, Uint8Array: A.NativeUint8List});
    hunkHelpers.setOrUpdateLeafTags({ArrayBuffer: true, ArrayBufferView: false, DataView: true, Float32Array: true, Float64Array: true, Int16Array: true, Int32Array: true, Int8Array: true, Uint16Array: true, Uint32Array: true, Uint8ClampedArray: true, CanvasPixelArray: true, Uint8Array: false});
    A.NativeTypedArray.$nativeSuperclassTag = "ArrayBufferView";
    A._NativeTypedArrayOfDouble_NativeTypedArray_ListMixin.$nativeSuperclassTag = "ArrayBufferView";
    A._NativeTypedArrayOfDouble_NativeTypedArray_ListMixin_FixedLengthListMixin.$nativeSuperclassTag = "ArrayBufferView";
    A.NativeTypedArrayOfDouble.$nativeSuperclassTag = "ArrayBufferView";
    A._NativeTypedArrayOfInt_NativeTypedArray_ListMixin.$nativeSuperclassTag = "ArrayBufferView";
    A._NativeTypedArrayOfInt_NativeTypedArray_ListMixin_FixedLengthListMixin.$nativeSuperclassTag = "ArrayBufferView";
    A.NativeTypedArrayOfInt.$nativeSuperclassTag = "ArrayBufferView";
  })();
  Function.prototype.call$2 = function(a, b) {
    return this(a, b);
  };
  Function.prototype.call$0 = function() {
    return this();
  };
  Function.prototype.call$1 = function(a) {
    return this(a);
  };
  Function.prototype.call$3 = function(a, b, c) {
    return this(a, b, c);
  };
  Function.prototype.call$4 = function(a, b, c, d) {
    return this(a, b, c, d);
  };
  Function.prototype.call$1$1 = function(a) {
    return this(a);
  };
  convertAllToFastObject(holders);
  convertToFastObject($);
  (function(callback) {
    if (typeof document === "undefined") {
      callback(null);
      return;
    }
    if (typeof document.currentScript != "undefined") {
      callback(document.currentScript);
      return;
    }
    var scripts = document.scripts;
    function onLoad(event) {
      for (var i = 0; i < scripts.length; ++i)
        scripts[i].removeEventListener("load", onLoad, false);
      callback(event.target);
    }
    for (var i = 0; i < scripts.length; ++i)
      scripts[i].addEventListener("load", onLoad, false);
  })(function(currentScript) {
    init.currentScript = currentScript;
    var callMain = function(args) {
      return A.main(A.convertMainArgumentList(args));
    };
    if (typeof dartMainRunner === "function")
      dartMainRunner(callMain, []);
    else
      callMain([]);
  });
})();

//# sourceMappingURL=main.js.map