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{ _getArrayObserver as getArrayObserver };\nexport { _getMapObserver as getMapObserver };\nexport { _getSetObserver as getSetObserver };\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nvar _dec, _dec2, _class, _dec3, _class2, _dec4, _class3, _dec5, _class5, _dec6, _class7, _dec7, _class8, _dec8, _class9, _dec9, _class10, _class12, _temp, _dec10, _class13, _class14, _temp2;\n\nfunction _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return call && (typeof call === \"object\" || typeof call === \"function\") ? call : self; }\n\nfunction _inherits(subClass, superClass) { if (typeof superClass !== \"function\" && superClass !== null) { throw new TypeError(\"Super expression must either be null or a function, not \" + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }\n\n\n\nimport * as LogManager from 'aurelia-logging';\nimport { PLATFORM, DOM } from 'aurelia-pal';\nimport { TaskQueue } from 'aurelia-task-queue';\nimport { metadata } from 'aurelia-metadata';\n\nexport var targetContext = 'Binding:target';\nexport var sourceContext = 'Binding:source';\n\nvar map = Object.create(null);\n\nexport function camelCase(name) {\n  if (name in map) {\n    return map[name];\n  }\n  var result = name.charAt(0).toLowerCase() + name.slice(1).replace(/[_.-](\\w|$)/g, function (_, x) {\n    return x.toUpperCase();\n  });\n  map[name] = result;\n  return result;\n}\n\nexport function createOverrideContext(bindingContext, parentOverrideContext) {\n  return {\n    bindingContext: bindingContext,\n    parentOverrideContext: parentOverrideContext || null\n  };\n}\n\nexport function getContextFor(name, scope, ancestor) {\n  var oc = scope.overrideContext;\n\n  if (ancestor) {\n    while (ancestor && oc) {\n      ancestor--;\n      oc = oc.parentOverrideContext;\n    }\n    if (ancestor || !oc) {\n      return undefined;\n    }\n    return name in oc ? oc : oc.bindingContext;\n  }\n\n  while (oc && !(name in oc) && !(oc.bindingContext && name in oc.bindingContext)) {\n    oc = oc.parentOverrideContext;\n  }\n  if (oc) {\n    return name in oc ? oc : oc.bindingContext;\n  }\n\n  return scope.bindingContext || scope.overrideContext;\n}\n\nexport function createScopeForTest(bindingContext, parentBindingContext) {\n  if (parentBindingContext) {\n    return {\n      bindingContext: bindingContext,\n      overrideContext: createOverrideContext(bindingContext, createOverrideContext(parentBindingContext))\n    };\n  }\n  return {\n    bindingContext: bindingContext,\n    overrideContext: createOverrideContext(bindingContext)\n  };\n}\n\nvar slotNames = [];\nvar versionSlotNames = [];\nvar lastSlot = -1;\nfunction ensureEnoughSlotNames(currentSlot) {\n  if (currentSlot === lastSlot) {\n    lastSlot += 5;\n    var ii = slotNames.length = versionSlotNames.length = lastSlot + 1;\n    for (var i = currentSlot + 1; i < ii; ++i) {\n      slotNames[i] = '_observer' + i;\n      versionSlotNames[i] = '_observerVersion' + i;\n    }\n  }\n}\nensureEnoughSlotNames(-1);\n\nfunction addObserver(observer) {\n  var observerSlots = this._observerSlots === undefined ? 0 : this._observerSlots;\n  var i = observerSlots;\n  while (i-- && this[slotNames[i]] !== observer) {}\n\n  if (i === -1) {\n    i = 0;\n    while (this[slotNames[i]]) {\n      i++;\n    }\n    this[slotNames[i]] = observer;\n    observer.subscribe(sourceContext, this);\n\n    if (i === observerSlots) {\n      this._observerSlots = i + 1;\n    }\n  }\n\n  if (this._version === undefined) {\n    this._version = 0;\n  }\n  this[versionSlotNames[i]] = this._version;\n  ensureEnoughSlotNames(i);\n}\n\nfunction observeProperty(obj, propertyName) {\n  var observer = this.observerLocator.getObserver(obj, propertyName);\n  addObserver.call(this, observer);\n}\n\nfunction observeArray(array) {\n  var observer = this.observerLocator.getArrayObserver(array);\n  addObserver.call(this, observer);\n}\n\nfunction unobserve(all) {\n  var i = this._observerSlots;\n  while (i--) {\n    if (all || this[versionSlotNames[i]] !== this._version) {\n      var observer = this[slotNames[i]];\n      this[slotNames[i]] = null;\n      if (observer) {\n        observer.unsubscribe(sourceContext, this);\n      }\n    }\n  }\n}\n\nexport function connectable() {\n  return function (target) {\n    target.prototype.observeProperty = observeProperty;\n    target.prototype.observeArray = observeArray;\n    target.prototype.unobserve = unobserve;\n    target.prototype.addObserver = addObserver;\n  };\n}\n\nvar queue = [];\nvar queued = {};\nvar nextId = 0;\nvar minimumImmediate = 100;\nvar frameBudget = 15;\n\nvar isFlushRequested = false;\nvar immediate = 0;\n\nfunction flush(animationFrameStart) {\n  var length = queue.length;\n  var i = 0;\n  while (i < length) {\n    var binding = queue[i];\n    queued[binding.__connectQueueId] = false;\n    binding.connect(true);\n    i++;\n\n    if (i % 100 === 0 && PLATFORM.performance.now() - animationFrameStart > frameBudget) {\n      break;\n    }\n  }\n  queue.splice(0, i);\n\n  if (queue.length) {\n    PLATFORM.requestAnimationFrame(flush);\n  } else {\n    isFlushRequested = false;\n    immediate = 0;\n  }\n}\n\nexport function enqueueBindingConnect(binding) {\n  if (immediate < minimumImmediate) {\n    immediate++;\n    binding.connect(false);\n  } else {\n    var id = binding.__connectQueueId;\n    if (id === undefined) {\n      id = nextId;\n      nextId++;\n      binding.__connectQueueId = id;\n    }\n\n    if (!queued[id]) {\n      queue.push(binding);\n      queued[id] = true;\n    }\n  }\n  if (!isFlushRequested) {\n    isFlushRequested = true;\n    PLATFORM.requestAnimationFrame(flush);\n  }\n}\n\nexport function setConnectQueueThreshold(value) {\n  minimumImmediate = value;\n}\n\nexport function enableConnectQueue() {\n  setConnectQueueThreshold(100);\n}\n\nexport function disableConnectQueue() {\n  setConnectQueueThreshold(Number.MAX_SAFE_INTEGER);\n}\n\nexport function getConnectQueueSize() {\n  return queue.length;\n}\n\nfunction addSubscriber(context, callable) {\n  if (this.hasSubscriber(context, callable)) {\n    return false;\n  }\n  if (!this._context0) {\n    this._context0 = context;\n    this._callable0 = callable;\n    return true;\n  }\n  if (!this._context1) {\n    this._context1 = context;\n    this._callable1 = callable;\n    return true;\n  }\n  if (!this._context2) {\n    this._context2 = context;\n    this._callable2 = callable;\n    return true;\n  }\n  if (!this._contextsRest) {\n    this._contextsRest = [context];\n    this._callablesRest = [callable];\n    return true;\n  }\n  this._contextsRest.push(context);\n  this._callablesRest.push(callable);\n  return true;\n}\n\nfunction removeSubscriber(context, callable) {\n  if (this._context0 === context && this._callable0 === callable) {\n    this._context0 = null;\n    this._callable0 = null;\n    return true;\n  }\n  if (this._context1 === context && this._callable1 === callable) {\n    this._context1 = null;\n    this._callable1 = null;\n    return true;\n  }\n  if (this._context2 === context && this._callable2 === callable) {\n    this._context2 = null;\n    this._callable2 = null;\n    return true;\n  }\n  var callables = this._callablesRest;\n  if (callables === undefined || callables.length === 0) {\n    return false;\n  }\n  var contexts = this._contextsRest;\n  var i = 0;\n  while (!(callables[i] === callable && contexts[i] === context) && callables.length > i) {\n    i++;\n  }\n  if (i >= callables.length) {\n    return false;\n  }\n  contexts.splice(i, 1);\n  callables.splice(i, 1);\n  return true;\n}\n\nvar arrayPool1 = [];\nvar arrayPool2 = [];\nvar poolUtilization = [];\n\nfunction callSubscribers(newValue, oldValue) {\n  var context0 = this._context0;\n  var callable0 = this._callable0;\n  var context1 = this._context1;\n  var callable1 = this._callable1;\n  var context2 = this._context2;\n  var callable2 = this._callable2;\n  var length = this._contextsRest ? this._contextsRest.length : 0;\n  var contextsRest = void 0;\n  var callablesRest = void 0;\n  var poolIndex = void 0;\n  var i = void 0;\n  if (length) {\n    poolIndex = poolUtilization.length;\n    while (poolIndex-- && poolUtilization[poolIndex]) {}\n    if (poolIndex < 0) {\n      poolIndex = poolUtilization.length;\n      contextsRest = [];\n      callablesRest = [];\n      poolUtilization.push(true);\n      arrayPool1.push(contextsRest);\n      arrayPool2.push(callablesRest);\n    } else {\n      poolUtilization[poolIndex] = true;\n      contextsRest = arrayPool1[poolIndex];\n      callablesRest = arrayPool2[poolIndex];\n    }\n\n    i = length;\n    while (i--) {\n      contextsRest[i] = this._contextsRest[i];\n      callablesRest[i] = this._callablesRest[i];\n    }\n  }\n\n  if (context0) {\n    if (callable0) {\n      callable0.call(context0, newValue, oldValue);\n    } else {\n      context0(newValue, oldValue);\n    }\n  }\n  if (context1) {\n    if (callable1) {\n      callable1.call(context1, newValue, oldValue);\n    } else {\n      context1(newValue, oldValue);\n    }\n  }\n  if (context2) {\n    if (callable2) {\n      callable2.call(context2, newValue, oldValue);\n    } else {\n      context2(newValue, oldValue);\n    }\n  }\n  if (length) {\n    for (i = 0; i < length; i++) {\n      var callable = callablesRest[i];\n      var context = contextsRest[i];\n      if (callable) {\n        callable.call(context, newValue, oldValue);\n      } else {\n        context(newValue, oldValue);\n      }\n      contextsRest[i] = null;\n      callablesRest[i] = null;\n    }\n    poolUtilization[poolIndex] = false;\n  }\n}\n\nfunction hasSubscribers() {\n  return !!(this._context0 || this._context1 || this._context2 || this._contextsRest && this._contextsRest.length);\n}\n\nfunction hasSubscriber(context, callable) {\n  var has = this._context0 === context && this._callable0 === callable || this._context1 === context && this._callable1 === callable || this._context2 === context && this._callable2 === callable;\n  if (has) {\n    return true;\n  }\n  var index = void 0;\n  var contexts = this._contextsRest;\n  if (!contexts || (index = contexts.length) === 0) {\n    return false;\n  }\n  var callables = this._callablesRest;\n  while (index--) {\n    if (contexts[index] === context && callables[index] === callable) {\n      return true;\n    }\n  }\n  return false;\n}\n\nexport function subscriberCollection() {\n  return function (target) {\n    target.prototype.addSubscriber = addSubscriber;\n    target.prototype.removeSubscriber = removeSubscriber;\n    target.prototype.callSubscribers = callSubscribers;\n    target.prototype.hasSubscribers = hasSubscribers;\n    target.prototype.hasSubscriber = hasSubscriber;\n  };\n}\n\nexport var ExpressionObserver = (_dec = connectable(), _dec2 = subscriberCollection(), _dec(_class = _dec2(_class = function () {\n  function ExpressionObserver(scope, expression, observerLocator, lookupFunctions) {\n    \n\n    this.scope = scope;\n    this.expression = expression;\n    this.observerLocator = observerLocator;\n    this.lookupFunctions = lookupFunctions;\n  }\n\n  ExpressionObserver.prototype.getValue = function getValue() {\n    return this.expression.evaluate(this.scope, this.lookupFunctions);\n  };\n\n  ExpressionObserver.prototype.setValue = function setValue(newValue) {\n    this.expression.assign(this.scope, newValue);\n  };\n\n  ExpressionObserver.prototype.subscribe = function subscribe(context, callable) {\n    var _this = this;\n\n    if (!this.hasSubscribers()) {\n      this.oldValue = this.expression.evaluate(this.scope, this.lookupFunctions);\n      this.expression.connect(this, this.scope);\n    }\n    this.addSubscriber(context, callable);\n    if (arguments.length === 1 && context instanceof Function) {\n      return {\n        dispose: function dispose() {\n          _this.unsubscribe(context, callable);\n        }\n      };\n    }\n  };\n\n  ExpressionObserver.prototype.unsubscribe = function unsubscribe(context, callable) {\n    if (this.removeSubscriber(context, callable) && !this.hasSubscribers()) {\n      this.unobserve(true);\n      this.oldValue = undefined;\n    }\n  };\n\n  ExpressionObserver.prototype.call = function call() {\n    var newValue = this.expression.evaluate(this.scope, this.lookupFunctions);\n    var oldValue = this.oldValue;\n    if (newValue !== oldValue) {\n      this.oldValue = newValue;\n      this.callSubscribers(newValue, oldValue);\n    }\n    this._version++;\n    this.expression.connect(this, this.scope);\n    this.unobserve(false);\n  };\n\n  return ExpressionObserver;\n}()) || _class) || _class);\n\nfunction isIndex(s) {\n  return +s === s >>> 0;\n}\n\nfunction toNumber(s) {\n  return +s;\n}\n\nfunction newSplice(index, removed, addedCount) {\n  return {\n    index: index,\n    removed: removed,\n    addedCount: addedCount\n  };\n}\n\nvar EDIT_LEAVE = 0;\nvar EDIT_UPDATE = 1;\nvar EDIT_ADD = 2;\nvar EDIT_DELETE = 3;\n\nfunction ArraySplice() {}\n\nArraySplice.prototype = {\n  calcEditDistances: function calcEditDistances(current, currentStart, currentEnd, old, oldStart, oldEnd) {\n    var rowCount = oldEnd - oldStart + 1;\n    var columnCount = currentEnd - currentStart + 1;\n    var distances = new Array(rowCount);\n    var north = void 0;\n    var west = void 0;\n\n    for (var i = 0; i < rowCount; ++i) {\n      distances[i] = new Array(columnCount);\n      distances[i][0] = i;\n    }\n\n    for (var j = 0; j < columnCount; ++j) {\n      distances[0][j] = j;\n    }\n\n    for (var _i = 1; _i < rowCount; ++_i) {\n      for (var _j = 1; _j < columnCount; ++_j) {\n        if (this.equals(current[currentStart + _j - 1], old[oldStart + _i - 1])) {\n          distances[_i][_j] = distances[_i - 1][_j - 1];\n        } else {\n          north = distances[_i - 1][_j] + 1;\n          west = distances[_i][_j - 1] + 1;\n          distances[_i][_j] = north < west ? north : west;\n        }\n      }\n    }\n\n    return distances;\n  },\n\n  spliceOperationsFromEditDistances: function spliceOperationsFromEditDistances(distances) {\n    var i = distances.length - 1;\n    var j = distances[0].length - 1;\n    var current = distances[i][j];\n    var edits = [];\n    while (i > 0 || j > 0) {\n      if (i === 0) {\n        edits.push(EDIT_ADD);\n        j--;\n        continue;\n      }\n      if (j === 0) {\n        edits.push(EDIT_DELETE);\n        i--;\n        continue;\n      }\n      var northWest = distances[i - 1][j - 1];\n      var west = distances[i - 1][j];\n      var north = distances[i][j - 1];\n\n      var min = void 0;\n      if (west < north) {\n        min = west < northWest ? west : northWest;\n      } else {\n        min = north < northWest ? north : northWest;\n      }\n\n      if (min === northWest) {\n        if (northWest === current) {\n          edits.push(EDIT_LEAVE);\n        } else {\n          edits.push(EDIT_UPDATE);\n          current = northWest;\n        }\n        i--;\n        j--;\n      } else if (min === west) {\n        edits.push(EDIT_DELETE);\n        i--;\n        current = west;\n      } else {\n        edits.push(EDIT_ADD);\n        j--;\n        current = north;\n      }\n    }\n\n    edits.reverse();\n    return edits;\n  },\n\n  calcSplices: function calcSplices(current, currentStart, currentEnd, old, oldStart, oldEnd) {\n    var prefixCount = 0;\n    var suffixCount = 0;\n\n    var minLength = Math.min(currentEnd - currentStart, oldEnd - oldStart);\n    if (currentStart === 0 && oldStart === 0) {\n      prefixCount = this.sharedPrefix(current, old, minLength);\n    }\n\n    if (currentEnd === current.length && oldEnd === old.length) {\n      suffixCount = this.sharedSuffix(current, old, minLength - prefixCount);\n    }\n\n    currentStart += prefixCount;\n    oldStart += prefixCount;\n    currentEnd -= suffixCount;\n    oldEnd -= suffixCount;\n\n    if (currentEnd - currentStart === 0 && oldEnd - oldStart === 0) {\n      return [];\n    }\n\n    if (currentStart === currentEnd) {\n      var _splice = newSplice(currentStart, [], 0);\n      while (oldStart < oldEnd) {\n        _splice.removed.push(old[oldStart++]);\n      }\n\n      return [_splice];\n    } else if (oldStart === oldEnd) {\n      return [newSplice(currentStart, [], currentEnd - currentStart)];\n    }\n\n    var ops = this.spliceOperationsFromEditDistances(this.calcEditDistances(current, currentStart, currentEnd, old, oldStart, oldEnd));\n\n    var splice = undefined;\n    var splices = [];\n    var index = currentStart;\n    var oldIndex = oldStart;\n    for (var i = 0; i < ops.length; ++i) {\n      switch (ops[i]) {\n        case EDIT_LEAVE:\n          if (splice) {\n            splices.push(splice);\n            splice = undefined;\n          }\n\n          index++;\n          oldIndex++;\n          break;\n        case EDIT_UPDATE:\n          if (!splice) {\n            splice = newSplice(index, [], 0);\n          }\n\n          splice.addedCount++;\n          index++;\n\n          splice.removed.push(old[oldIndex]);\n          oldIndex++;\n          break;\n        case EDIT_ADD:\n          if (!splice) {\n            splice = newSplice(index, [], 0);\n          }\n\n          splice.addedCount++;\n          index++;\n          break;\n        case EDIT_DELETE:\n          if (!splice) {\n            splice = newSplice(index, [], 0);\n          }\n\n          splice.removed.push(old[oldIndex]);\n          oldIndex++;\n          break;\n      }\n    }\n\n    if (splice) {\n      splices.push(splice);\n    }\n    return splices;\n  },\n\n  sharedPrefix: function sharedPrefix(current, old, searchLength) {\n    for (var i = 0; i < searchLength; ++i) {\n      if (!this.equals(current[i], old[i])) {\n        return i;\n      }\n    }\n\n    return searchLength;\n  },\n\n  sharedSuffix: function sharedSuffix(current, old, searchLength) {\n    var index1 = current.length;\n    var index2 = old.length;\n    var count = 0;\n    while (count < searchLength && this.equals(current[--index1], old[--index2])) {\n      count++;\n    }\n\n    return count;\n  },\n\n  calculateSplices: function calculateSplices(current, previous) {\n    return this.calcSplices(current, 0, current.length, previous, 0, previous.length);\n  },\n\n  equals: function equals(currentValue, previousValue) {\n    return currentValue === previousValue;\n  }\n};\n\nvar arraySplice = new ArraySplice();\n\nexport function calcSplices(current, currentStart, currentEnd, old, oldStart, oldEnd) {\n  return arraySplice.calcSplices(current, currentStart, currentEnd, old, oldStart, oldEnd);\n}\n\nfunction intersect(start1, end1, start2, end2) {\n  if (end1 < start2 || end2 < start1) {\n    return -1;\n  }\n\n  if (end1 === start2 || end2 === start1) {\n    return 0;\n  }\n\n  if (start1 < start2) {\n    if (end1 < end2) {\n      return end1 - start2;\n    }\n\n    return end2 - start2;\n  }\n\n  if (end2 < end1) {\n    return end2 - start1;\n  }\n\n  return end1 - start1;\n}\n\nexport function mergeSplice(splices, index, removed, addedCount) {\n  var splice = newSplice(index, removed, addedCount);\n\n  var inserted = false;\n  var insertionOffset = 0;\n\n  for (var i = 0; i < splices.length; i++) {\n    var current = splices[i];\n    current.index += insertionOffset;\n\n    if (inserted) {\n      continue;\n    }\n\n    var intersectCount = intersect(splice.index, splice.index + splice.removed.length, current.index, current.index + current.addedCount);\n\n    if (intersectCount >= 0) {\n\n      splices.splice(i, 1);\n      i--;\n\n      insertionOffset -= current.addedCount - current.removed.length;\n\n      splice.addedCount += current.addedCount - intersectCount;\n      var deleteCount = splice.removed.length + current.removed.length - intersectCount;\n\n      if (!splice.addedCount && !deleteCount) {\n        inserted = true;\n      } else {\n        var currentRemoved = current.removed;\n\n        if (splice.index < current.index) {\n          var prepend = splice.removed.slice(0, current.index - splice.index);\n          Array.prototype.push.apply(prepend, currentRemoved);\n          currentRemoved = prepend;\n        }\n\n        if (splice.index + splice.removed.length > current.index + current.addedCount) {\n          var append = splice.removed.slice(current.index + current.addedCount - splice.index);\n          Array.prototype.push.apply(currentRemoved, append);\n        }\n\n        splice.removed = currentRemoved;\n        if (current.index < splice.index) {\n          splice.index = current.index;\n        }\n      }\n    } else if (splice.index < current.index) {\n\n      inserted = true;\n\n      splices.splice(i, 0, splice);\n      i++;\n\n      var offset = splice.addedCount - splice.removed.length;\n      current.index += offset;\n      insertionOffset += offset;\n    }\n  }\n\n  if (!inserted) {\n    splices.push(splice);\n  }\n}\n\nfunction createInitialSplices(array, changeRecords) {\n  var splices = [];\n\n  for (var i = 0; i < changeRecords.length; i++) {\n    var record = changeRecords[i];\n    switch (record.type) {\n      case 'splice':\n        mergeSplice(splices, record.index, record.removed.slice(), record.addedCount);\n        break;\n      case 'add':\n      case 'update':\n      case 'delete':\n        if (!isIndex(record.name)) {\n          continue;\n        }\n\n        var index = toNumber(record.name);\n        if (index < 0) {\n          continue;\n        }\n\n        mergeSplice(splices, index, [record.oldValue], record.type === 'delete' ? 0 : 1);\n        break;\n      default:\n        console.error('Unexpected record type: ' + JSON.stringify(record));\n        break;\n    }\n  }\n\n  return splices;\n}\n\nexport function projectArraySplices(array, changeRecords) {\n  var splices = [];\n\n  createInitialSplices(array, changeRecords).forEach(function (splice) {\n    if (splice.addedCount === 1 && splice.removed.length === 1) {\n      if (splice.removed[0] !== array[splice.index]) {\n        splices.push(splice);\n      }\n\n      return;\n    }\n\n    splices = splices.concat(calcSplices(array, splice.index, splice.index + splice.addedCount, splice.removed, 0, splice.removed.length));\n  });\n\n  return splices;\n}\n\nfunction newRecord(type, object, key, oldValue) {\n  return {\n    type: type,\n    object: object,\n    key: key,\n    oldValue: oldValue\n  };\n}\n\nexport function getChangeRecords(map) {\n  var entries = new Array(map.size);\n  var keys = map.keys();\n  var i = 0;\n  var item = void 0;\n\n  while (item = keys.next()) {\n    if (item.done) {\n      break;\n    }\n\n    entries[i] = newRecord('added', map, item.value);\n    i++;\n  }\n\n  return entries;\n}\n\nexport var ModifyCollectionObserver = (_dec3 = subscriberCollection(), _dec3(_class2 = function () {\n  function ModifyCollectionObserver(taskQueue, collection) {\n    \n\n    this.taskQueue = taskQueue;\n    this.queued = false;\n    this.changeRecords = null;\n    this.oldCollection = null;\n    this.collection = collection;\n    this.lengthPropertyName = collection instanceof Map || collection instanceof Set ? 'size' : 'length';\n  }\n\n  ModifyCollectionObserver.prototype.subscribe = function subscribe(context, callable) {\n    this.addSubscriber(context, callable);\n  };\n\n  ModifyCollectionObserver.prototype.unsubscribe = function unsubscribe(context, callable) {\n    this.removeSubscriber(context, callable);\n  };\n\n  ModifyCollectionObserver.prototype.addChangeRecord = function addChangeRecord(changeRecord) {\n    if (!this.hasSubscribers() && !this.lengthObserver) {\n      return;\n    }\n\n    if (changeRecord.type === 'splice') {\n      var index = changeRecord.index;\n      var arrayLength = changeRecord.object.length;\n      if (index > arrayLength) {\n        index = arrayLength - changeRecord.addedCount;\n      } else if (index < 0) {\n        index = arrayLength + changeRecord.removed.length + index - changeRecord.addedCount;\n      }\n      if (index < 0) {\n        index = 0;\n      }\n      changeRecord.index = index;\n    }\n\n    if (this.changeRecords === null) {\n      this.changeRecords = [changeRecord];\n    } else {\n      this.changeRecords.push(changeRecord);\n    }\n\n    if (!this.queued) {\n      this.queued = true;\n      this.taskQueue.queueMicroTask(this);\n    }\n  };\n\n  ModifyCollectionObserver.prototype.flushChangeRecords = function flushChangeRecords() {\n    if (this.changeRecords && this.changeRecords.length || this.oldCollection) {\n      this.call();\n    }\n  };\n\n  ModifyCollectionObserver.prototype.reset = function reset(oldCollection) {\n    this.oldCollection = oldCollection;\n\n    if (this.hasSubscribers() && !this.queued) {\n      this.queued = true;\n      this.taskQueue.queueMicroTask(this);\n    }\n  };\n\n  ModifyCollectionObserver.prototype.getLengthObserver = function getLengthObserver() {\n    return this.lengthObserver || (this.lengthObserver = new CollectionLengthObserver(this.collection));\n  };\n\n  ModifyCollectionObserver.prototype.call = function call() {\n    var changeRecords = this.changeRecords;\n    var oldCollection = this.oldCollection;\n    var records = void 0;\n\n    this.queued = false;\n    this.changeRecords = [];\n    this.oldCollection = null;\n\n    if (this.hasSubscribers()) {\n      if (oldCollection) {\n        if (this.collection instanceof Map || this.collection instanceof Set) {\n          records = getChangeRecords(oldCollection);\n        } else {\n          records = calcSplices(this.collection, 0, this.collection.length, oldCollection, 0, oldCollection.length);\n        }\n      } else {\n        if (this.collection instanceof Map || this.collection instanceof Set) {\n          records = changeRecords;\n        } else {\n          records = projectArraySplices(this.collection, changeRecords);\n        }\n      }\n\n      this.callSubscribers(records);\n    }\n\n    if (this.lengthObserver) {\n      this.lengthObserver.call(this.collection[this.lengthPropertyName]);\n    }\n  };\n\n  return ModifyCollectionObserver;\n}()) || _class2);\n\nexport var CollectionLengthObserver = (_dec4 = subscriberCollection(), _dec4(_class3 = function () {\n  function CollectionLengthObserver(collection) {\n    \n\n    this.collection = collection;\n    this.lengthPropertyName = collection instanceof Map || collection instanceof Set ? 'size' : 'length';\n    this.currentValue = collection[this.lengthPropertyName];\n  }\n\n  CollectionLengthObserver.prototype.getValue = function getValue() {\n    return this.collection[this.lengthPropertyName];\n  };\n\n  CollectionLengthObserver.prototype.setValue = function setValue(newValue) {\n    this.collection[this.lengthPropertyName] = newValue;\n  };\n\n  CollectionLengthObserver.prototype.subscribe = function subscribe(context, callable) {\n    this.addSubscriber(context, callable);\n  };\n\n  CollectionLengthObserver.prototype.unsubscribe = function unsubscribe(context, callable) {\n    this.removeSubscriber(context, callable);\n  };\n\n  CollectionLengthObserver.prototype.call = function call(newValue) {\n    var oldValue = this.currentValue;\n    this.callSubscribers(newValue, oldValue);\n    this.currentValue = newValue;\n  };\n\n  return CollectionLengthObserver;\n}()) || _class3);\n\nvar arrayProto = Array.prototype;\nvar pop = arrayProto.pop;\nvar push = arrayProto.push;\nvar reverse = arrayProto.reverse;\nvar shift = arrayProto.shift;\nvar sort = arrayProto.sort;\nvar splice = arrayProto.splice;\nvar unshift = arrayProto.unshift;\n\nif (arrayProto.__au_patched__) {\n  LogManager.getLogger('array-observation').warn('Detected 2nd attempt of patching array from Aurelia binding.' + ' This is probably caused by dependency mismatch between core modules and a 3rd party plugin.' + ' Please see https://github.com/aurelia/cli/pull/906 if you are using webpack.');\n} else {\n  Reflect.defineProperty(arrayProto, '__au_patched__', { value: 1 });\n  arrayProto.pop = function () {\n    var notEmpty = this.length > 0;\n    var methodCallResult = pop.apply(this, arguments);\n    if (notEmpty && this.__array_observer__ !== undefined) {\n      this.__array_observer__.addChangeRecord({\n        type: 'delete',\n        object: this,\n        name: this.length,\n        oldValue: methodCallResult\n      });\n    }\n    return methodCallResult;\n  };\n\n  arrayProto.push = function () {\n    var methodCallResult = push.apply(this, arguments);\n    if (this.__array_observer__ !== undefined) {\n      this.__array_observer__.addChangeRecord({\n        type: 'splice',\n        object: this,\n        index: this.length - arguments.length,\n        removed: [],\n        addedCount: arguments.length\n      });\n    }\n    return methodCallResult;\n  };\n\n  arrayProto.reverse = function () {\n    var oldArray = void 0;\n    if (this.__array_observer__ !== undefined) {\n      this.__array_observer__.flushChangeRecords();\n      oldArray = this.slice();\n    }\n    var methodCallResult = reverse.apply(this, arguments);\n    if (this.__array_observer__ !== undefined) {\n      this.__array_observer__.reset(oldArray);\n    }\n    return methodCallResult;\n  };\n\n  arrayProto.shift = function () {\n    var notEmpty = this.length > 0;\n    var methodCallResult = shift.apply(this, arguments);\n    if (notEmpty && this.__array_observer__ !== undefined) {\n      this.__array_observer__.addChangeRecord({\n        type: 'delete',\n        object: this,\n        name: 0,\n        oldValue: methodCallResult\n      });\n    }\n    return methodCallResult;\n  };\n\n  arrayProto.sort = function () {\n    var oldArray = void 0;\n    if (this.__array_observer__ !== undefined) {\n      this.__array_observer__.flushChangeRecords();\n      oldArray = this.slice();\n    }\n    var methodCallResult = sort.apply(this, arguments);\n    if (this.__array_observer__ !== undefined) {\n      this.__array_observer__.reset(oldArray);\n    }\n    return methodCallResult;\n  };\n\n  arrayProto.splice = function () {\n    var methodCallResult = splice.apply(this, arguments);\n    if (this.__array_observer__ !== undefined) {\n      this.__array_observer__.addChangeRecord({\n        type: 'splice',\n        object: this,\n        index: +arguments[0],\n        removed: methodCallResult,\n        addedCount: arguments.length > 2 ? arguments.length - 2 : 0\n      });\n    }\n    return methodCallResult;\n  };\n\n  arrayProto.unshift = function () {\n    var methodCallResult = unshift.apply(this, arguments);\n    if (this.__array_observer__ !== undefined) {\n      this.__array_observer__.addChangeRecord({\n        type: 'splice',\n        object: this,\n        index: 0,\n        removed: [],\n        addedCount: arguments.length\n      });\n    }\n    return methodCallResult;\n  };\n}\n\nfunction _getArrayObserver(taskQueue, array) {\n  return ModifyArrayObserver.for(taskQueue, array);\n}\n\nvar ModifyArrayObserver = function (_ModifyCollectionObse) {\n  _inherits(ModifyArrayObserver, _ModifyCollectionObse);\n\n  function ModifyArrayObserver(taskQueue, array) {\n    \n\n    return _possibleConstructorReturn(this, _ModifyCollectionObse.call(this, taskQueue, array));\n  }\n\n  ModifyArrayObserver.for = function _for(taskQueue, array) {\n    if (!('__array_observer__' in array)) {\n      Reflect.defineProperty(array, '__array_observer__', {\n        value: ModifyArrayObserver.create(taskQueue, array),\n        enumerable: false, configurable: false\n      });\n    }\n    return array.__array_observer__;\n  };\n\n  ModifyArrayObserver.create = function create(taskQueue, array) {\n    return new ModifyArrayObserver(taskQueue, array);\n  };\n\n  return ModifyArrayObserver;\n}(ModifyCollectionObserver);\n\nexport var Expression = function () {\n  function Expression() {\n    \n\n    this.isAssignable = false;\n  }\n\n  Expression.prototype.evaluate = function evaluate(scope, lookupFunctions, args) {\n    throw new Error('Binding expression \"' + this + '\" cannot be evaluated.');\n  };\n\n  Expression.prototype.assign = function assign(scope, value, lookupFunctions) {\n    throw new Error('Binding expression \"' + this + '\" cannot be assigned to.');\n  };\n\n  Expression.prototype.toString = function toString() {\n    return typeof FEATURE_NO_UNPARSER === 'undefined' ? _Unparser.unparse(this) : Function.prototype.toString.call(this);\n  };\n\n  return Expression;\n}();\n\nexport var BindingBehavior = function (_Expression) {\n  _inherits(BindingBehavior, _Expression);\n\n  function BindingBehavior(expression, name, args) {\n    \n\n    var _this3 = _possibleConstructorReturn(this, _Expression.call(this));\n\n    _this3.expression = expression;\n    _this3.name = name;\n    _this3.args = args;\n    return _this3;\n  }\n\n  BindingBehavior.prototype.evaluate = function evaluate(scope, lookupFunctions) {\n    return this.expression.evaluate(scope, lookupFunctions);\n  };\n\n  BindingBehavior.prototype.assign = function assign(scope, value, lookupFunctions) {\n    return this.expression.assign(scope, value, lookupFunctions);\n  };\n\n  BindingBehavior.prototype.accept = function accept(visitor) {\n    return visitor.visitBindingBehavior(this);\n  };\n\n  BindingBehavior.prototype.connect = function connect(binding, scope) {\n    this.expression.connect(binding, scope);\n  };\n\n  BindingBehavior.prototype.bind = function bind(binding, scope, lookupFunctions) {\n    if (this.expression.expression && this.expression.bind) {\n      this.expression.bind(binding, scope, lookupFunctions);\n    }\n    var behavior = lookupFunctions.bindingBehaviors(this.name);\n    if (!behavior) {\n      throw new Error('No BindingBehavior named \"' + this.name + '\" was found!');\n    }\n    var behaviorKey = 'behavior-' + this.name;\n    if (binding[behaviorKey]) {\n      throw new Error('A binding behavior named \"' + this.name + '\" has already been applied to \"' + this.expression + '\"');\n    }\n    binding[behaviorKey] = behavior;\n    behavior.bind.apply(behavior, [binding, scope].concat(evalList(scope, this.args, binding.lookupFunctions)));\n  };\n\n  BindingBehavior.prototype.unbind = function unbind(binding, scope) {\n    var behaviorKey = 'behavior-' + this.name;\n    binding[behaviorKey].unbind(binding, scope);\n    binding[behaviorKey] = null;\n    if (this.expression.expression && this.expression.unbind) {\n      this.expression.unbind(binding, scope);\n    }\n  };\n\n  return BindingBehavior;\n}(Expression);\n\nexport var ValueConverter = function (_Expression2) {\n  _inherits(ValueConverter, _Expression2);\n\n  function ValueConverter(expression, name, args) {\n    \n\n    var _this4 = _possibleConstructorReturn(this, _Expression2.call(this));\n\n    _this4.expression = expression;\n    _this4.name = name;\n    _this4.args = args;\n    _this4.allArgs = [expression].concat(args);\n    return _this4;\n  }\n\n  ValueConverter.prototype.evaluate = function evaluate(scope, lookupFunctions) {\n    var converter = lookupFunctions.valueConverters(this.name);\n    if (!converter) {\n      throw new Error('No ValueConverter named \"' + this.name + '\" was found!');\n    }\n\n    if ('toView' in converter) {\n      return converter.toView.apply(converter, evalList(scope, this.allArgs, lookupFunctions));\n    }\n\n    return this.allArgs[0].evaluate(scope, lookupFunctions);\n  };\n\n  ValueConverter.prototype.assign = function assign(scope, value, lookupFunctions) {\n    var converter = lookupFunctions.valueConverters(this.name);\n    if (!converter) {\n      throw new Error('No ValueConverter named \"' + this.name + '\" was found!');\n    }\n\n    if ('fromView' in converter) {\n      value = converter.fromView.apply(converter, [value].concat(evalList(scope, this.args, lookupFunctions)));\n    }\n\n    return this.allArgs[0].assign(scope, value, lookupFunctions);\n  };\n\n  ValueConverter.prototype.accept = function accept(visitor) {\n    return visitor.visitValueConverter(this);\n  };\n\n  ValueConverter.prototype.connect = function connect(binding, scope) {\n    var expressions = this.allArgs;\n    var i = expressions.length;\n    while (i--) {\n      expressions[i].connect(binding, scope);\n    }\n    var converter = binding.lookupFunctions.valueConverters(this.name);\n    if (!converter) {\n      throw new Error('No ValueConverter named \"' + this.name + '\" was found!');\n    }\n    var signals = converter.signals;\n    if (signals === undefined) {\n      return;\n    }\n    i = signals.length;\n    while (i--) {\n      connectBindingToSignal(binding, signals[i]);\n    }\n  };\n\n  return ValueConverter;\n}(Expression);\n\nexport var Assign = function (_Expression3) {\n  _inherits(Assign, _Expression3);\n\n  function Assign(target, value) {\n    \n\n    var _this5 = _possibleConstructorReturn(this, _Expression3.call(this));\n\n    _this5.target = target;\n    _this5.value = value;\n    _this5.isAssignable = true;\n    return _this5;\n  }\n\n  Assign.prototype.evaluate = function evaluate(scope, lookupFunctions) {\n    return this.target.assign(scope, this.value.evaluate(scope, lookupFunctions));\n  };\n\n  Assign.prototype.accept = function accept(vistor) {\n    vistor.visitAssign(this);\n  };\n\n  Assign.prototype.connect = function connect(binding, scope) {};\n\n  Assign.prototype.assign = function assign(scope, value) {\n    this.value.assign(scope, value);\n    this.target.assign(scope, value);\n  };\n\n  return Assign;\n}(Expression);\n\nexport var Conditional = function (_Expression4) {\n  _inherits(Conditional, _Expression4);\n\n  function Conditional(condition, yes, no) {\n    \n\n    var _this6 = _possibleConstructorReturn(this, _Expression4.call(this));\n\n    _this6.condition = condition;\n    _this6.yes = yes;\n    _this6.no = no;\n    return _this6;\n  }\n\n  Conditional.prototype.evaluate = function evaluate(scope, lookupFunctions) {\n    return !!this.condition.evaluate(scope, lookupFunctions) ? this.yes.evaluate(scope, lookupFunctions) : this.no.evaluate(scope, lookupFunctions);\n  };\n\n  Conditional.prototype.accept = function accept(visitor) {\n    return visitor.visitConditional(this);\n  };\n\n  Conditional.prototype.connect = function connect(binding, scope) {\n    this.condition.connect(binding, scope);\n    if (this.condition.evaluate(scope)) {\n      this.yes.connect(binding, scope);\n    } else {\n      this.no.connect(binding, scope);\n    }\n  };\n\n  return Conditional;\n}(Expression);\n\nexport var AccessThis = function (_Expression5) {\n  _inherits(AccessThis, _Expression5);\n\n  function AccessThis(ancestor) {\n    \n\n    var _this7 = _possibleConstructorReturn(this, _Expression5.call(this));\n\n    _this7.ancestor = ancestor;\n    return _this7;\n  }\n\n  AccessThis.prototype.evaluate = function evaluate(scope, lookupFunctions) {\n    var oc = scope.overrideContext;\n    var i = this.ancestor;\n    while (i-- && oc) {\n      oc = oc.parentOverrideContext;\n    }\n    return i < 1 && oc ? oc.bindingContext : undefined;\n  };\n\n  AccessThis.prototype.accept = function accept(visitor) {\n    return visitor.visitAccessThis(this);\n  };\n\n  AccessThis.prototype.connect = function connect(binding, scope) {};\n\n  return AccessThis;\n}(Expression);\n\nexport var AccessScope = function (_Expression6) {\n  _inherits(AccessScope, _Expression6);\n\n  function AccessScope(name, ancestor) {\n    \n\n    var _this8 = _possibleConstructorReturn(this, _Expression6.call(this));\n\n    _this8.name = name;\n    _this8.ancestor = ancestor;\n    _this8.isAssignable = true;\n    return _this8;\n  }\n\n  AccessScope.prototype.evaluate = function evaluate(scope, lookupFunctions) {\n    var context = getContextFor(this.name, scope, this.ancestor);\n    return context[this.name];\n  };\n\n  AccessScope.prototype.assign = function assign(scope, value) {\n    var context = getContextFor(this.name, scope, this.ancestor);\n    return context ? context[this.name] = value : undefined;\n  };\n\n  AccessScope.prototype.accept = function accept(visitor) {\n    return visitor.visitAccessScope(this);\n  };\n\n  AccessScope.prototype.connect = function connect(binding, scope) {\n    var context = getContextFor(this.name, scope, this.ancestor);\n    binding.observeProperty(context, this.name);\n  };\n\n  return AccessScope;\n}(Expression);\n\nexport var AccessMember = function (_Expression7) {\n  _inherits(AccessMember, _Expression7);\n\n  function AccessMember(object, name) {\n    \n\n    var _this9 = _possibleConstructorReturn(this, _Expression7.call(this));\n\n    _this9.object = object;\n    _this9.name = name;\n    _this9.isAssignable = true;\n    return _this9;\n  }\n\n  AccessMember.prototype.evaluate = function evaluate(scope, lookupFunctions) {\n    var instance = this.object.evaluate(scope, lookupFunctions);\n    return instance === null || instance === undefined ? instance : instance[this.name];\n  };\n\n  AccessMember.prototype.assign = function assign(scope, value) {\n    var instance = this.object.evaluate(scope);\n\n    if (instance === null || instance === undefined) {\n      instance = {};\n      this.object.assign(scope, instance);\n    }\n\n    instance[this.name] = value;\n    return value;\n  };\n\n  AccessMember.prototype.accept = function accept(visitor) {\n    return visitor.visitAccessMember(this);\n  };\n\n  AccessMember.prototype.connect = function connect(binding, scope) {\n    this.object.connect(binding, scope);\n    var obj = this.object.evaluate(scope);\n    if (obj) {\n      binding.observeProperty(obj, this.name);\n    }\n  };\n\n  return AccessMember;\n}(Expression);\n\nexport var AccessKeyed = function (_Expression8) {\n  _inherits(AccessKeyed, _Expression8);\n\n  function AccessKeyed(object, key) {\n    \n\n    var _this10 = _possibleConstructorReturn(this, _Expression8.call(this));\n\n    _this10.object = object;\n    _this10.key = key;\n    _this10.isAssignable = true;\n    return _this10;\n  }\n\n  AccessKeyed.prototype.evaluate = function evaluate(scope, lookupFunctions) {\n    var instance = this.object.evaluate(scope, lookupFunctions);\n    var lookup = this.key.evaluate(scope, lookupFunctions);\n    return getKeyed(instance, lookup);\n  };\n\n  AccessKeyed.prototype.assign = function assign(scope, value) {\n    var instance = this.object.evaluate(scope);\n    var lookup = this.key.evaluate(scope);\n    return setKeyed(instance, lookup, value);\n  };\n\n  AccessKeyed.prototype.accept = function accept(visitor) {\n    return visitor.visitAccessKeyed(this);\n  };\n\n  AccessKeyed.prototype.connect = function connect(binding, scope) {\n    this.object.connect(binding, scope);\n    var obj = this.object.evaluate(scope);\n    if (obj instanceof Object) {\n      this.key.connect(binding, scope);\n      var key = this.key.evaluate(scope);\n\n      if (key !== null && key !== undefined && !(Array.isArray(obj) && typeof key === 'number')) {\n        binding.observeProperty(obj, key);\n      }\n    }\n  };\n\n  return AccessKeyed;\n}(Expression);\n\nexport var CallScope = function (_Expression9) {\n  _inherits(CallScope, _Expression9);\n\n  function CallScope(name, args, ancestor) {\n    \n\n    var _this11 = _possibleConstructorReturn(this, _Expression9.call(this));\n\n    _this11.name = name;\n    _this11.args = args;\n    _this11.ancestor = ancestor;\n    return _this11;\n  }\n\n  CallScope.prototype.evaluate = function evaluate(scope, lookupFunctions, mustEvaluate) {\n    var args = evalList(scope, this.args, lookupFunctions);\n    var context = getContextFor(this.name, scope, this.ancestor);\n    var func = getFunction(context, this.name, mustEvaluate);\n    if (func) {\n      return func.apply(context, args);\n    }\n    return undefined;\n  };\n\n  CallScope.prototype.accept = function accept(visitor) {\n    return visitor.visitCallScope(this);\n  };\n\n  CallScope.prototype.connect = function connect(binding, scope) {\n    var args = this.args;\n    var i = args.length;\n    while (i--) {\n      args[i].connect(binding, scope);\n    }\n  };\n\n  return CallScope;\n}(Expression);\n\nexport var CallMember = function (_Expression10) {\n  _inherits(CallMember, _Expression10);\n\n  function CallMember(object, name, args) {\n    \n\n    var _this12 = _possibleConstructorReturn(this, _Expression10.call(this));\n\n    _this12.object = object;\n    _this12.name = name;\n    _this12.args = args;\n    return _this12;\n  }\n\n  CallMember.prototype.evaluate = function evaluate(scope, lookupFunctions, mustEvaluate) {\n    var instance = this.object.evaluate(scope, lookupFunctions);\n    var args = evalList(scope, this.args, lookupFunctions);\n    var func = getFunction(instance, this.name, mustEvaluate);\n    if (func) {\n      return func.apply(instance, args);\n    }\n    return undefined;\n  };\n\n  CallMember.prototype.accept = function accept(visitor) {\n    return visitor.visitCallMember(this);\n  };\n\n  CallMember.prototype.connect = function connect(binding, scope) {\n    this.object.connect(binding, scope);\n    var obj = this.object.evaluate(scope);\n    if (getFunction(obj, this.name, false)) {\n      var args = this.args;\n      var i = args.length;\n      while (i--) {\n        args[i].connect(binding, scope);\n      }\n    }\n  };\n\n  return CallMember;\n}(Expression);\n\nexport var CallFunction = function (_Expression11) {\n  _inherits(CallFunction, _Expression11);\n\n  function CallFunction(func, args) {\n    \n\n    var _this13 = _possibleConstructorReturn(this, _Expression11.call(this));\n\n    _this13.func = func;\n    _this13.args = args;\n    return _this13;\n  }\n\n  CallFunction.prototype.evaluate = function evaluate(scope, lookupFunctions, mustEvaluate) {\n    var func = this.func.evaluate(scope, lookupFunctions);\n    if (typeof func === 'function') {\n      return func.apply(null, evalList(scope, this.args, lookupFunctions));\n    }\n    if (!mustEvaluate && (func === null || func === undefined)) {\n      return undefined;\n    }\n    throw new Error(this.func + ' is not a function');\n  };\n\n  CallFunction.prototype.accept = function accept(visitor) {\n    return visitor.visitCallFunction(this);\n  };\n\n  CallFunction.prototype.connect = function connect(binding, scope) {\n    this.func.connect(binding, scope);\n    var func = this.func.evaluate(scope);\n    if (typeof func === 'function') {\n      var args = this.args;\n      var i = args.length;\n      while (i--) {\n        args[i].connect(binding, scope);\n      }\n    }\n  };\n\n  return CallFunction;\n}(Expression);\n\nexport var Binary = function (_Expression12) {\n  _inherits(Binary, _Expression12);\n\n  function Binary(operation, left, right) {\n    \n\n    var _this14 = _possibleConstructorReturn(this, _Expression12.call(this));\n\n    _this14.operation = operation;\n    _this14.left = left;\n    _this14.right = right;\n    return _this14;\n  }\n\n  Binary.prototype.evaluate = function evaluate(scope, lookupFunctions) {\n    var left = this.left.evaluate(scope, lookupFunctions);\n\n    switch (this.operation) {\n      case '&&':\n        return left && this.right.evaluate(scope, lookupFunctions);\n      case '||':\n        return left || this.right.evaluate(scope, lookupFunctions);\n    }\n\n    var right = this.right.evaluate(scope, lookupFunctions);\n\n    switch (this.operation) {\n      case '==':\n        return left == right;\n      case '===':\n        return left === right;\n      case '!=':\n        return left != right;\n      case '!==':\n        return left !== right;\n      case 'instanceof':\n        return typeof right === 'function' && left instanceof right;\n      case 'in':\n        return (typeof right === 'undefined' ? 'undefined' : _typeof(right)) === 'object' && right !== null && left in right;\n    }\n\n    if (left === null || right === null || left === undefined || right === undefined) {\n      switch (this.operation) {\n        case '+':\n          if (left !== null && left !== undefined) return left;\n          if (right !== null && right !== undefined) return right;\n          return 0;\n        case '-':\n          if (left !== null && left !== undefined) return left;\n          if (right !== null && right !== undefined) return 0 - right;\n          return 0;\n      }\n\n      return null;\n    }\n\n    switch (this.operation) {\n      case '+':\n        return autoConvertAdd(left, right);\n      case '-':\n        return left - right;\n      case '*':\n        return left * right;\n      case '/':\n        return left / right;\n      case '%':\n        return left % right;\n      case '<':\n        return left < right;\n      case '>':\n        return left > right;\n      case '<=':\n        return left <= right;\n      case '>=':\n        return left >= right;\n      case '^':\n        return left ^ right;\n    }\n\n    throw new Error('Internal error [' + this.operation + '] not handled');\n  };\n\n  Binary.prototype.accept = function accept(visitor) {\n    return visitor.visitBinary(this);\n  };\n\n  Binary.prototype.connect = function connect(binding, scope) {\n    this.left.connect(binding, scope);\n    var left = this.left.evaluate(scope);\n    if (this.operation === '&&' && !left || this.operation === '||' && left) {\n      return;\n    }\n    this.right.connect(binding, scope);\n  };\n\n  return Binary;\n}(Expression);\n\nexport var Unary = function (_Expression13) {\n  _inherits(Unary, _Expression13);\n\n  function Unary(operation, expression) {\n    \n\n    var _this15 = _possibleConstructorReturn(this, _Expression13.call(this));\n\n    _this15.operation = operation;\n    _this15.expression = expression;\n    return _this15;\n  }\n\n  Unary.prototype.evaluate = function evaluate(scope, lookupFunctions) {\n    switch (this.operation) {\n      case '!':\n        return !this.expression.evaluate(scope, lookupFunctions);\n      case 'typeof':\n        return _typeof(this.expression.evaluate(scope, lookupFunctions));\n      case 'void':\n        return void this.expression.evaluate(scope, lookupFunctions);\n    }\n\n    throw new Error('Internal error [' + this.operation + '] not handled');\n  };\n\n  Unary.prototype.accept = function accept(visitor) {\n    return visitor.visitPrefix(this);\n  };\n\n  Unary.prototype.connect = function connect(binding, scope) {\n    this.expression.connect(binding, scope);\n  };\n\n  return Unary;\n}(Expression);\n\nexport var LiteralPrimitive = function (_Expression14) {\n  _inherits(LiteralPrimitive, _Expression14);\n\n  function LiteralPrimitive(value) {\n    \n\n    var _this16 = _possibleConstructorReturn(this, _Expression14.call(this));\n\n    _this16.value = value;\n    return _this16;\n  }\n\n  LiteralPrimitive.prototype.evaluate = function evaluate(scope, lookupFunctions) {\n    return this.value;\n  };\n\n  LiteralPrimitive.prototype.accept = function accept(visitor) {\n    return visitor.visitLiteralPrimitive(this);\n  };\n\n  LiteralPrimitive.prototype.connect = function connect(binding, scope) {};\n\n  return LiteralPrimitive;\n}(Expression);\n\nexport var LiteralString = function (_Expression15) {\n  _inherits(LiteralString, _Expression15);\n\n  function LiteralString(value) {\n    \n\n    var _this17 = _possibleConstructorReturn(this, _Expression15.call(this));\n\n    _this17.value = value;\n    return _this17;\n  }\n\n  LiteralString.prototype.evaluate = function evaluate(scope, lookupFunctions) {\n    return this.value;\n  };\n\n  LiteralString.prototype.accept = function accept(visitor) {\n    return visitor.visitLiteralString(this);\n  };\n\n  LiteralString.prototype.connect = function connect(binding, scope) {};\n\n  return LiteralString;\n}(Expression);\n\nexport var LiteralTemplate = function (_Expression16) {\n  _inherits(LiteralTemplate, _Expression16);\n\n  function LiteralTemplate(cooked, expressions, raw, tag) {\n    \n\n    var _this18 = _possibleConstructorReturn(this, _Expression16.call(this));\n\n    _this18.cooked = cooked;\n    _this18.expressions = expressions || [];\n    _this18.length = _this18.expressions.length;\n    _this18.tagged = tag !== undefined;\n    if (_this18.tagged) {\n      _this18.cooked.raw = raw;\n      _this18.tag = tag;\n      if (tag instanceof AccessScope) {\n        _this18.contextType = 'Scope';\n      } else if (tag instanceof AccessMember || tag instanceof AccessKeyed) {\n        _this18.contextType = 'Object';\n      } else {\n        throw new Error(_this18.tag + ' is not a valid template tag');\n      }\n    }\n    return _this18;\n  }\n\n  LiteralTemplate.prototype.getScopeContext = function getScopeContext(scope, lookupFunctions) {\n    return getContextFor(this.tag.name, scope, this.tag.ancestor);\n  };\n\n  LiteralTemplate.prototype.getObjectContext = function getObjectContext(scope, lookupFunctions) {\n    return this.tag.object.evaluate(scope, lookupFunctions);\n  };\n\n  LiteralTemplate.prototype.evaluate = function evaluate(scope, lookupFunctions, mustEvaluate) {\n    var results = new Array(this.length);\n    for (var i = 0; i < this.length; i++) {\n      results[i] = this.expressions[i].evaluate(scope, lookupFunctions);\n    }\n    if (this.tagged) {\n      var func = this.tag.evaluate(scope, lookupFunctions);\n      if (typeof func === 'function') {\n        var context = this['get' + this.contextType + 'Context'](scope, lookupFunctions);\n        return func.call.apply(func, [context, this.cooked].concat(results));\n      }\n      if (!mustEvaluate) {\n        return null;\n      }\n      throw new Error(this.tag + ' is not a function');\n    }\n    var result = this.cooked[0];\n    for (var _i2 = 0; _i2 < this.length; _i2++) {\n      result = String.prototype.concat(result, results[_i2], this.cooked[_i2 + 1]);\n    }\n    return result;\n  };\n\n  LiteralTemplate.prototype.accept = function accept(visitor) {\n    return visitor.visitLiteralTemplate(this);\n  };\n\n  LiteralTemplate.prototype.connect = function connect(binding, scope) {\n    for (var i = 0; i < this.length; i++) {\n      this.expressions[i].connect(binding, scope);\n    }\n    if (this.tagged) {\n      this.tag.connect(binding, scope);\n    }\n  };\n\n  return LiteralTemplate;\n}(Expression);\n\nexport var LiteralArray = function (_Expression17) {\n  _inherits(LiteralArray, _Expression17);\n\n  function LiteralArray(elements) {\n    \n\n    var _this19 = _possibleConstructorReturn(this, _Expression17.call(this));\n\n    _this19.elements = elements;\n    return _this19;\n  }\n\n  LiteralArray.prototype.evaluate = function evaluate(scope, lookupFunctions) {\n    var elements = this.elements;\n    var result = [];\n\n    for (var i = 0, length = elements.length; i < length; ++i) {\n      result[i] = elements[i].evaluate(scope, lookupFunctions);\n    }\n\n    return result;\n  };\n\n  LiteralArray.prototype.accept = function accept(visitor) {\n    return visitor.visitLiteralArray(this);\n  };\n\n  LiteralArray.prototype.connect = function connect(binding, scope) {\n    var length = this.elements.length;\n    for (var i = 0; i < length; i++) {\n      this.elements[i].connect(binding, scope);\n    }\n  };\n\n  return LiteralArray;\n}(Expression);\n\nexport var LiteralObject = function (_Expression18) {\n  _inherits(LiteralObject, _Expression18);\n\n  function LiteralObject(keys, values) {\n    \n\n    var _this20 = _possibleConstructorReturn(this, _Expression18.call(this));\n\n    _this20.keys = keys;\n    _this20.values = values;\n    return _this20;\n  }\n\n  LiteralObject.prototype.evaluate = function evaluate(scope, lookupFunctions) {\n    var instance = {};\n    var keys = this.keys;\n    var values = this.values;\n\n    for (var i = 0, length = keys.length; i < length; ++i) {\n      instance[keys[i]] = values[i].evaluate(scope, lookupFunctions);\n    }\n\n    return instance;\n  };\n\n  LiteralObject.prototype.accept = function accept(visitor) {\n    return visitor.visitLiteralObject(this);\n  };\n\n  LiteralObject.prototype.connect = function connect(binding, scope) {\n    var length = this.keys.length;\n    for (var i = 0; i < length; i++) {\n      this.values[i].connect(binding, scope);\n    }\n  };\n\n  return LiteralObject;\n}(Expression);\n\nfunction evalList(scope, list, lookupFunctions) {\n  var length = list.length;\n  var result = [];\n  for (var i = 0; i < length; i++) {\n    result[i] = list[i].evaluate(scope, lookupFunctions);\n  }\n  return result;\n}\n\nfunction autoConvertAdd(a, b) {\n  if (a !== null && b !== null) {\n    if (typeof a === 'string' && typeof b !== 'string') {\n      return a + b.toString();\n    }\n\n    if (typeof a !== 'string' && typeof b === 'string') {\n      return a.toString() + b;\n    }\n\n    return a + b;\n  }\n\n  if (a !== null) {\n    return a;\n  }\n\n  if (b !== null) {\n    return b;\n  }\n\n  return 0;\n}\n\nfunction getFunction(obj, name, mustExist) {\n  var func = obj === null || obj === undefined ? null : obj[name];\n  if (typeof func === 'function') {\n    return func;\n  }\n  if (!mustExist && (func === null || func === undefined)) {\n    return null;\n  }\n  throw new Error(name + ' is not a function');\n}\n\nfunction getKeyed(obj, key) {\n  if (Array.isArray(obj)) {\n    return obj[parseInt(key, 10)];\n  } else if (obj) {\n    return obj[key];\n  } else if (obj === null || obj === undefined) {\n    return undefined;\n  }\n\n  return obj[key];\n}\n\nfunction setKeyed(obj, key, value) {\n  if (Array.isArray(obj)) {\n    var index = parseInt(key, 10);\n\n    if (obj.length <= index) {\n      obj.length = index + 1;\n    }\n\n    obj[index] = value;\n  } else {\n    obj[key] = value;\n  }\n\n  return value;\n}\n\nvar _Unparser = null;\n\nexport { _Unparser as Unparser };\nif (typeof FEATURE_NO_UNPARSER === 'undefined') {\n  _Unparser = function () {\n    function Unparser(buffer) {\n      \n\n      this.buffer = buffer;\n    }\n\n    Unparser.unparse = function unparse(expression) {\n      var buffer = [];\n      var visitor = new _Unparser(buffer);\n\n      expression.accept(visitor);\n\n      return buffer.join('');\n    };\n\n    Unparser.prototype.write = function write(text) {\n      this.buffer.push(text);\n    };\n\n    Unparser.prototype.writeArgs = function writeArgs(args) {\n      this.write('(');\n\n      for (var i = 0, length = args.length; i < length; ++i) {\n        if (i !== 0) {\n          this.write(',');\n        }\n\n        args[i].accept(this);\n      }\n\n      this.write(')');\n    };\n\n    Unparser.prototype.visitBindingBehavior = function visitBindingBehavior(behavior) {\n      var args = behavior.args;\n\n      behavior.expression.accept(this);\n      this.write('&' + behavior.name);\n\n      for (var i = 0, length = args.length; i < length; ++i) {\n        this.write(':');\n        args[i].accept(this);\n      }\n    };\n\n    Unparser.prototype.visitValueConverter = function visitValueConverter(converter) {\n      var args = converter.args;\n\n      converter.expression.accept(this);\n      this.write('|' + converter.name);\n\n      for (var i = 0, length = args.length; i < length; ++i) {\n        this.write(':');\n        args[i].accept(this);\n      }\n    };\n\n    Unparser.prototype.visitAssign = function visitAssign(assign) {\n      assign.target.accept(this);\n      this.write('=');\n      assign.value.accept(this);\n    };\n\n    Unparser.prototype.visitConditional = function visitConditional(conditional) {\n      conditional.condition.accept(this);\n      this.write('?');\n      conditional.yes.accept(this);\n      this.write(':');\n      conditional.no.accept(this);\n    };\n\n    Unparser.prototype.visitAccessThis = function visitAccessThis(access) {\n      if (access.ancestor === 0) {\n        this.write('$this');\n        return;\n      }\n      this.write('$parent');\n      var i = access.ancestor - 1;\n      while (i--) {\n        this.write('.$parent');\n      }\n    };\n\n    Unparser.prototype.visitAccessScope = function visitAccessScope(access) {\n      var i = access.ancestor;\n      while (i--) {\n        this.write('$parent.');\n      }\n      this.write(access.name);\n    };\n\n    Unparser.prototype.visitAccessMember = function visitAccessMember(access) {\n      access.object.accept(this);\n      this.write('.' + access.name);\n    };\n\n    Unparser.prototype.visitAccessKeyed = function visitAccessKeyed(access) {\n      access.object.accept(this);\n      this.write('[');\n      access.key.accept(this);\n      this.write(']');\n    };\n\n    Unparser.prototype.visitCallScope = function visitCallScope(call) {\n      var i = call.ancestor;\n      while (i--) {\n        this.write('$parent.');\n      }\n      this.write(call.name);\n      this.writeArgs(call.args);\n    };\n\n    Unparser.prototype.visitCallFunction = function visitCallFunction(call) {\n      call.func.accept(this);\n      this.writeArgs(call.args);\n    };\n\n    Unparser.prototype.visitCallMember = function visitCallMember(call) {\n      call.object.accept(this);\n      this.write('.' + call.name);\n      this.writeArgs(call.args);\n    };\n\n    Unparser.prototype.visitPrefix = function visitPrefix(prefix) {\n      this.write('(' + prefix.operation);\n      if (prefix.operation.charCodeAt(0) >= 97) {\n        this.write(' ');\n      }\n      prefix.expression.accept(this);\n      this.write(')');\n    };\n\n    Unparser.prototype.visitBinary = function visitBinary(binary) {\n      binary.left.accept(this);\n      if (binary.operation.charCodeAt(0) === 105) {\n        this.write(' ' + binary.operation + ' ');\n      } else {\n        this.write(binary.operation);\n      }\n      binary.right.accept(this);\n    };\n\n    Unparser.prototype.visitLiteralPrimitive = function visitLiteralPrimitive(literal) {\n      this.write('' + literal.value);\n    };\n\n    Unparser.prototype.visitLiteralArray = function visitLiteralArray(literal) {\n      var elements = literal.elements;\n\n      this.write('[');\n\n      for (var i = 0, length = elements.length; i < length; ++i) {\n        if (i !== 0) {\n          this.write(',');\n        }\n\n        elements[i].accept(this);\n      }\n\n      this.write(']');\n    };\n\n    Unparser.prototype.visitLiteralObject = function visitLiteralObject(literal) {\n      var keys = literal.keys;\n      var values = literal.values;\n\n      this.write('{');\n\n      for (var i = 0, length = keys.length; i < length; ++i) {\n        if (i !== 0) {\n          this.write(',');\n        }\n\n        this.write('\\'' + keys[i] + '\\':');\n        values[i].accept(this);\n      }\n\n      this.write('}');\n    };\n\n    Unparser.prototype.visitLiteralString = function visitLiteralString(literal) {\n      var escaped = literal.value.replace(/'/g, \"\\'\");\n      this.write('\\'' + escaped + '\\'');\n    };\n\n    Unparser.prototype.visitLiteralTemplate = function visitLiteralTemplate(literal) {\n      var cooked = literal.cooked,\n          expressions = literal.expressions;\n\n      var length = expressions.length;\n      this.write('`');\n      this.write(cooked[0]);\n      for (var i = 0; i < length; i++) {\n        expressions[i].accept(this);\n        this.write(cooked[i + 1]);\n      }\n      this.write('`');\n    };\n\n    return Unparser;\n  }();\n}\n\nexport var ExpressionCloner = function () {\n  function ExpressionCloner() {\n    \n  }\n\n  ExpressionCloner.prototype.cloneExpressionArray = function cloneExpressionArray(array) {\n    var clonedArray = [];\n    var i = array.length;\n    while (i--) {\n      clonedArray[i] = array[i].accept(this);\n    }\n    return clonedArray;\n  };\n\n  ExpressionCloner.prototype.visitBindingBehavior = function visitBindingBehavior(behavior) {\n    return new BindingBehavior(behavior.expression.accept(this), behavior.name, this.cloneExpressionArray(behavior.args));\n  };\n\n  ExpressionCloner.prototype.visitValueConverter = function visitValueConverter(converter) {\n    return new ValueConverter(converter.expression.accept(this), converter.name, this.cloneExpressionArray(converter.args));\n  };\n\n  ExpressionCloner.prototype.visitAssign = function visitAssign(assign) {\n    return new Assign(assign.target.accept(this), assign.value.accept(this));\n  };\n\n  ExpressionCloner.prototype.visitConditional = function visitConditional(conditional) {\n    return new Conditional(conditional.condition.accept(this), conditional.yes.accept(this), conditional.no.accept(this));\n  };\n\n  ExpressionCloner.prototype.visitAccessThis = function visitAccessThis(access) {\n    return new AccessThis(access.ancestor);\n  };\n\n  ExpressionCloner.prototype.visitAccessScope = function visitAccessScope(access) {\n    return new AccessScope(access.name, access.ancestor);\n  };\n\n  ExpressionCloner.prototype.visitAccessMember = function visitAccessMember(access) {\n    return new AccessMember(access.object.accept(this), access.name);\n  };\n\n  ExpressionCloner.prototype.visitAccessKeyed = function visitAccessKeyed(access) {\n    return new AccessKeyed(access.object.accept(this), access.key.accept(this));\n  };\n\n  ExpressionCloner.prototype.visitCallScope = function visitCallScope(call) {\n    return new CallScope(call.name, this.cloneExpressionArray(call.args), call.ancestor);\n  };\n\n  ExpressionCloner.prototype.visitCallFunction = function visitCallFunction(call) {\n    return new CallFunction(call.func.accept(this), this.cloneExpressionArray(call.args));\n  };\n\n  ExpressionCloner.prototype.visitCallMember = function visitCallMember(call) {\n    return new CallMember(call.object.accept(this), call.name, this.cloneExpressionArray(call.args));\n  };\n\n  ExpressionCloner.prototype.visitUnary = function visitUnary(unary) {\n    return new Unary(prefix.operation, prefix.expression.accept(this));\n  };\n\n  ExpressionCloner.prototype.visitBinary = function visitBinary(binary) {\n    return new Binary(binary.operation, binary.left.accept(this), binary.right.accept(this));\n  };\n\n  ExpressionCloner.prototype.visitLiteralPrimitive = function visitLiteralPrimitive(literal) {\n    return new LiteralPrimitive(literal);\n  };\n\n  ExpressionCloner.prototype.visitLiteralArray = function visitLiteralArray(literal) {\n    return new LiteralArray(this.cloneExpressionArray(literal.elements));\n  };\n\n  ExpressionCloner.prototype.visitLiteralObject = function visitLiteralObject(literal) {\n    return new LiteralObject(literal.keys, this.cloneExpressionArray(literal.values));\n  };\n\n  ExpressionCloner.prototype.visitLiteralString = function visitLiteralString(literal) {\n    return new LiteralString(literal.value);\n  };\n\n  ExpressionCloner.prototype.visitLiteralTemplate = function visitLiteralTemplate(literal) {\n    return new LiteralTemplate(literal.cooked, this.cloneExpressionArray(literal.expressions), literal.raw, literal.tag && literal.tag.accept(this));\n  };\n\n  return ExpressionCloner;\n}();\n\nexport function cloneExpression(expression) {\n  var visitor = new ExpressionCloner();\n  return expression.accept(visitor);\n}\n\nexport var bindingMode = {\n  oneTime: 0,\n  toView: 1,\n  oneWay: 1,\n  twoWay: 2,\n  fromView: 3\n};\n\nexport var Parser = function () {\n  function Parser() {\n    \n\n    this.cache = Object.create(null);\n  }\n\n  Parser.prototype.parse = function parse(src) {\n    src = src || '';\n\n    return this.cache[src] || (this.cache[src] = new ParserImplementation(src).parseBindingBehavior());\n  };\n\n  return Parser;\n}();\n\nvar fromCharCode = String.fromCharCode;\n\nexport var ParserImplementation = function () {\n  _createClass(ParserImplementation, [{\n    key: 'raw',\n    get: function get() {\n      return this.src.slice(this.start, this.idx);\n    }\n  }]);\n\n  function ParserImplementation(src) {\n    \n\n    this.idx = 0;\n\n    this.start = 0;\n\n    this.src = src;\n    this.len = src.length;\n\n    this.tkn = T$EOF;\n\n    this.val = undefined;\n\n    this.ch = src.charCodeAt(0);\n  }\n\n  ParserImplementation.prototype.parseBindingBehavior = function parseBindingBehavior() {\n    this.nextToken();\n    if (this.tkn & T$ExpressionTerminal) {\n      this.err('Invalid start of expression');\n    }\n    var result = this.parseValueConverter();\n    while (this.opt(T$Ampersand)) {\n      result = new BindingBehavior(result, this.val, this.parseVariadicArgs());\n    }\n    if (this.tkn !== T$EOF) {\n      this.err('Unconsumed token ' + this.raw);\n    }\n    return result;\n  };\n\n  ParserImplementation.prototype.parseValueConverter = function parseValueConverter() {\n    var result = this.parseExpression();\n    while (this.opt(T$Bar)) {\n      result = new ValueConverter(result, this.val, this.parseVariadicArgs());\n    }\n    return result;\n  };\n\n  ParserImplementation.prototype.parseVariadicArgs = function parseVariadicArgs() {\n    this.nextToken();\n    var result = [];\n    while (this.opt(T$Colon)) {\n      result.push(this.parseExpression());\n    }\n    return result;\n  };\n\n  ParserImplementation.prototype.parseExpression = function parseExpression() {\n    var exprStart = this.idx;\n    var result = this.parseConditional();\n\n    while (this.tkn === T$Eq) {\n      if (!result.isAssignable) {\n        this.err('Expression ' + this.src.slice(exprStart, this.start) + ' is not assignable');\n      }\n      this.nextToken();\n      exprStart = this.idx;\n      result = new Assign(result, this.parseConditional());\n    }\n    return result;\n  };\n\n  ParserImplementation.prototype.parseConditional = function parseConditional() {\n    var result = this.parseBinary(0);\n\n    if (this.opt(T$Question)) {\n      var yes = this.parseExpression();\n      this.expect(T$Colon);\n      result = new Conditional(result, yes, this.parseExpression());\n    }\n    return result;\n  };\n\n  ParserImplementation.prototype.parseBinary = function parseBinary(minPrecedence) {\n    var left = this.parseLeftHandSide(0);\n\n    while (this.tkn & T$BinaryOp) {\n      var opToken = this.tkn;\n      if ((opToken & T$Precedence) <= minPrecedence) {\n        break;\n      }\n      this.nextToken();\n      left = new Binary(TokenValues[opToken & T$TokenMask], left, this.parseBinary(opToken & T$Precedence));\n    }\n    return left;\n  };\n\n  ParserImplementation.prototype.parseLeftHandSide = function parseLeftHandSide(context) {\n    var result = void 0;\n\n    primary: switch (this.tkn) {\n      case T$Plus:\n        this.nextToken();\n        return this.parseLeftHandSide(0);\n      case T$Minus:\n        this.nextToken();\n        return new Binary('-', new LiteralPrimitive(0), this.parseLeftHandSide(0));\n      case T$Bang:\n      case T$TypeofKeyword:\n      case T$VoidKeyword:\n        var op = TokenValues[this.tkn & T$TokenMask];\n        this.nextToken();\n        return new Unary(op, this.parseLeftHandSide(0));\n      case T$ParentScope:\n        {\n          do {\n            this.nextToken();\n            context++;\n            if (this.opt(T$Period)) {\n              if (this.tkn === T$Period) {\n                this.err();\n              }\n              continue;\n            } else if (this.tkn & T$AccessScopeTerminal) {\n              result = new AccessThis(context & C$Ancestor);\n\n              context = context & C$ShorthandProp | C$This;\n              break primary;\n            } else {\n              this.err();\n            }\n          } while (this.tkn === T$ParentScope);\n        }\n\n      case T$Identifier:\n        {\n          result = new AccessScope(this.val, context & C$Ancestor);\n          this.nextToken();\n          context = context & C$ShorthandProp | C$Scope;\n          break;\n        }\n      case T$ThisScope:\n        this.nextToken();\n        result = new AccessThis(0);\n        context = context & C$ShorthandProp | C$This;\n        break;\n      case T$LParen:\n        this.nextToken();\n        result = this.parseExpression();\n        this.expect(T$RParen);\n        context = C$Primary;\n        break;\n      case T$LBracket:\n        {\n          this.nextToken();\n          var _elements = [];\n          if (this.tkn !== T$RBracket) {\n            do {\n              _elements.push(this.parseExpression());\n            } while (this.opt(T$Comma));\n          }\n          this.expect(T$RBracket);\n          result = new LiteralArray(_elements);\n          context = C$Primary;\n          break;\n        }\n      case T$LBrace:\n        {\n          var keys = [];\n          var values = [];\n          this.nextToken();\n          while (this.tkn !== T$RBrace) {\n            if (this.tkn & T$IdentifierOrKeyword) {\n              var ch = this.ch,\n                  tkn = this.tkn,\n                  idx = this.idx;\n\n              keys.push(this.val);\n              this.nextToken();\n              if (this.opt(T$Colon)) {\n                values.push(this.parseExpression());\n              } else {\n                this.ch = ch;\n                this.tkn = tkn;\n                this.idx = idx;\n                values.push(this.parseLeftHandSide(C$ShorthandProp));\n              }\n            } else if (this.tkn & T$Literal) {\n              keys.push(this.val);\n              this.nextToken();\n              this.expect(T$Colon);\n              values.push(this.parseExpression());\n            } else {\n              this.err();\n            }\n            if (this.tkn !== T$RBrace) {\n              this.expect(T$Comma);\n            }\n          }\n          this.expect(T$RBrace);\n          result = new LiteralObject(keys, values);\n          context = C$Primary;\n          break;\n        }\n      case T$StringLiteral:\n        result = new LiteralString(this.val);\n        this.nextToken();\n        context = C$Primary;\n        break;\n      case T$TemplateTail:\n        result = new LiteralTemplate([this.val]);\n        this.nextToken();\n        context = C$Primary;\n        break;\n      case T$TemplateContinuation:\n        result = this.parseTemplate(0);\n        context = C$Primary;\n        break;\n      case T$NumericLiteral:\n        {\n          result = new LiteralPrimitive(this.val);\n          this.nextToken();\n\n          break;\n        }\n      case T$NullKeyword:\n      case T$UndefinedKeyword:\n      case T$TrueKeyword:\n      case T$FalseKeyword:\n        result = new LiteralPrimitive(TokenValues[this.tkn & T$TokenMask]);\n        this.nextToken();\n        context = C$Primary;\n        break;\n      default:\n        if (this.idx >= this.len) {\n          this.err('Unexpected end of expression');\n        } else {\n          this.err();\n        }\n    }\n\n    if (context & C$ShorthandProp) {\n      return result;\n    }\n\n    var name = this.val;\n    while (this.tkn & T$MemberOrCallExpression) {\n      switch (this.tkn) {\n        case T$Period:\n          this.nextToken();\n          if (!(this.tkn & T$IdentifierOrKeyword)) {\n            this.err();\n          }\n          name = this.val;\n          this.nextToken();\n\n          context = context & C$Primary | (context & (C$This | C$Scope)) << 1 | context & C$Member | (context & C$Keyed) >> 1 | (context & C$Call) >> 2;\n          if (this.tkn === T$LParen) {\n            continue;\n          }\n          if (context & C$Scope) {\n            result = new AccessScope(name, result.ancestor);\n          } else {\n            result = new AccessMember(result, name);\n          }\n          continue;\n        case T$LBracket:\n          this.nextToken();\n          context = C$Keyed;\n          result = new AccessKeyed(result, this.parseExpression());\n          this.expect(T$RBracket);\n          break;\n        case T$LParen:\n          this.nextToken();\n          var args = [];\n          while (this.tkn !== T$RParen) {\n            args.push(this.parseExpression());\n            if (!this.opt(T$Comma)) {\n              break;\n            }\n          }\n          this.expect(T$RParen);\n          if (context & C$Scope) {\n            result = new CallScope(name, args, result.ancestor);\n          } else if (context & (C$Member | C$Primary)) {\n            result = new CallMember(result, name, args);\n          } else {\n            result = new CallFunction(result, args);\n          }\n          context = C$Call;\n          break;\n        case T$TemplateTail:\n          result = new LiteralTemplate([this.val], [], [this.raw], result);\n          this.nextToken();\n          break;\n        case T$TemplateContinuation:\n          result = this.parseTemplate(context | C$Tagged, result);\n      }\n    }\n\n    return result;\n  };\n\n  ParserImplementation.prototype.parseTemplate = function parseTemplate(context, func) {\n    var cooked = [this.val];\n    var raw = context & C$Tagged ? [this.raw] : undefined;\n    this.expect(T$TemplateContinuation);\n    var expressions = [this.parseExpression()];\n\n    while ((this.tkn = this.scanTemplateTail()) !== T$TemplateTail) {\n      cooked.push(this.val);\n      if (context & C$Tagged) {\n        raw.push(this.raw);\n      }\n      this.expect(T$TemplateContinuation);\n      expressions.push(this.parseExpression());\n    }\n\n    cooked.push(this.val);\n    if (context & C$Tagged) {\n      raw.push(this.raw);\n    }\n    this.nextToken();\n    return new LiteralTemplate(cooked, expressions, raw, func);\n  };\n\n  ParserImplementation.prototype.nextToken = function nextToken() {\n    while (this.idx < this.len) {\n      if (this.ch <= 0x20) {\n        this.next();\n        continue;\n      }\n      this.start = this.idx;\n      if (this.ch === 0x24 || this.ch >= 0x61 && this.ch <= 0x7A) {\n        this.tkn = this.scanIdentifier();\n        return;\n      }\n\n      if ((this.tkn = CharScanners[this.ch](this)) !== null) {\n        return;\n      }\n    }\n    this.tkn = T$EOF;\n  };\n\n  ParserImplementation.prototype.next = function next() {\n    return this.ch = this.src.charCodeAt(++this.idx);\n  };\n\n  ParserImplementation.prototype.scanIdentifier = function scanIdentifier() {\n    while (AsciiIdParts.has(this.next()) || this.ch > 0x7F && IdParts[this.ch]) {}\n\n    return KeywordLookup[this.val = this.raw] || T$Identifier;\n  };\n\n  ParserImplementation.prototype.scanNumber = function scanNumber(isFloat) {\n    if (isFloat) {\n      this.val = 0;\n    } else {\n      this.val = this.ch - 0x30;\n      while (this.next() <= 0x39 && this.ch >= 0x30) {\n        this.val = this.val * 10 + this.ch - 0x30;\n      }\n    }\n\n    if (isFloat || this.ch === 0x2E) {\n      if (!isFloat) {\n        this.next();\n      }\n      var start = this.idx;\n      var value = this.ch - 0x30;\n      while (this.next() <= 0x39 && this.ch >= 0x30) {\n        value = value * 10 + this.ch - 0x30;\n      }\n      this.val = this.val + value / Math.pow(10, this.idx - start);\n    }\n\n    if (this.ch === 0x65 || this.ch === 0x45) {\n      var _start = this.idx;\n\n      this.next();\n      if (this.ch === 0x2D || this.ch === 0x2B) {\n        this.next();\n      }\n\n      if (!(this.ch >= 0x30 && this.ch <= 0x39)) {\n        this.idx = _start;\n        this.err('Invalid exponent');\n      }\n      while (this.next() <= 0x39 && this.ch >= 0x30) {}\n      this.val = parseFloat(this.src.slice(this.start, this.idx));\n    }\n\n    return T$NumericLiteral;\n  };\n\n  ParserImplementation.prototype.scanString = function scanString() {\n    var quote = this.ch;\n    this.next();\n\n    var buffer = void 0;\n    var marker = this.idx;\n\n    while (this.ch !== quote) {\n      if (this.ch === 0x5C) {\n        if (!buffer) {\n          buffer = [];\n        }\n\n        buffer.push(this.src.slice(marker, this.idx));\n\n        this.next();\n\n        var _unescaped = void 0;\n\n        if (this.ch === 0x75) {\n          this.next();\n\n          if (this.idx + 4 < this.len) {\n            var hex = this.src.slice(this.idx, this.idx + 4);\n\n            if (!/[A-Z0-9]{4}/i.test(hex)) {\n              this.err('Invalid unicode escape [\\\\u' + hex + ']');\n            }\n\n            _unescaped = parseInt(hex, 16);\n            this.idx += 4;\n            this.ch = this.src.charCodeAt(this.idx);\n          } else {\n            this.err();\n          }\n        } else {\n          _unescaped = unescape(this.ch);\n          this.next();\n        }\n\n        buffer.push(fromCharCode(_unescaped));\n        marker = this.idx;\n      } else if (this.ch === 0 || this.idx >= this.len) {\n        this.err('Unterminated quote');\n      } else {\n        this.next();\n      }\n    }\n\n    var last = this.src.slice(marker, this.idx);\n    this.next();\n    var unescaped = last;\n\n    if (buffer !== null && buffer !== undefined) {\n      buffer.push(last);\n      unescaped = buffer.join('');\n    }\n\n    this.val = unescaped;\n    return T$StringLiteral;\n  };\n\n  ParserImplementation.prototype.scanTemplate = function scanTemplate() {\n    var tail = true;\n    var result = '';\n\n    while (this.next() !== 0x60) {\n      if (this.ch === 0x24) {\n        if (this.idx + 1 < this.len && this.src.charCodeAt(this.idx + 1) === 0x7B) {\n          this.idx++;\n          tail = false;\n          break;\n        } else {\n          result += '$';\n        }\n      } else if (this.ch === 0x5C) {\n        result += fromCharCode(unescape(this.next()));\n      } else if (this.ch === 0 || this.idx >= this.len) {\n        this.err('Unterminated template literal');\n      } else {\n        result += fromCharCode(this.ch);\n      }\n    }\n\n    this.next();\n    this.val = result;\n    if (tail) {\n      return T$TemplateTail;\n    }\n    return T$TemplateContinuation;\n  };\n\n  ParserImplementation.prototype.scanTemplateTail = function scanTemplateTail() {\n    if (this.idx >= this.len) {\n      this.err('Unterminated template');\n    }\n    this.idx--;\n    return this.scanTemplate();\n  };\n\n  ParserImplementation.prototype.err = function err() {\n    var message = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'Unexpected token ' + this.raw;\n    var column = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.start;\n\n    throw new Error('Parser Error: ' + message + ' at column ' + column + ' in expression [' + this.src + ']');\n  };\n\n  ParserImplementation.prototype.opt = function opt(token) {\n    if (this.tkn === token) {\n      this.nextToken();\n      return true;\n    }\n\n    return false;\n  };\n\n  ParserImplementation.prototype.expect = function expect(token) {\n    if (this.tkn === token) {\n      this.nextToken();\n    } else {\n      this.err('Missing expected token ' + TokenValues[token & T$TokenMask], this.idx);\n    }\n  };\n\n  return ParserImplementation;\n}();\n\nfunction unescape(code) {\n  switch (code) {\n    case 0x66:\n      return 0xC;\n    case 0x6E:\n      return 0xA;\n    case 0x72:\n      return 0xD;\n    case 0x74:\n      return 0x9;\n    case 0x76:\n      return 0xB;\n    default:\n      return code;\n  }\n}\n\nvar C$This = 1 << 10;\nvar C$Scope = 1 << 11;\nvar C$Member = 1 << 12;\nvar C$Keyed = 1 << 13;\nvar C$Call = 1 << 14;\nvar C$Primary = 1 << 15;\nvar C$ShorthandProp = 1 << 16;\nvar C$Tagged = 1 << 17;\n\nvar C$Ancestor = (1 << 9) - 1;\n\nvar T$TokenMask = (1 << 6) - 1;\n\nvar T$PrecShift = 6;\n\nvar T$Precedence = 7 << T$PrecShift;\n\nvar T$ExpressionTerminal = 1 << 11;\n\nvar T$ClosingToken = 1 << 12;\n\nvar T$OpeningToken = 1 << 13;\n\nvar T$AccessScopeTerminal = 1 << 14;\nvar T$Keyword = 1 << 15;\nvar T$EOF = 1 << 16 | T$AccessScopeTerminal | T$ExpressionTerminal;\nvar T$Identifier = 1 << 17;\nvar T$IdentifierOrKeyword = T$Identifier | T$Keyword;\nvar T$Literal = 1 << 18;\nvar T$NumericLiteral = 1 << 19 | T$Literal;\nvar T$StringLiteral = 1 << 20 | T$Literal;\nvar T$BinaryOp = 1 << 21;\n\nvar T$UnaryOp = 1 << 22;\n\nvar T$MemberExpression = 1 << 23;\n\nvar T$MemberOrCallExpression = 1 << 24;\nvar T$TemplateTail = 1 << 25 | T$MemberOrCallExpression;\nvar T$TemplateContinuation = 1 << 26 | T$MemberOrCallExpression;\n\nvar T$FalseKeyword = 0 | T$Keyword | T$Literal;\nvar T$TrueKeyword = 1 | T$Keyword | T$Literal;\nvar T$NullKeyword = 2 | T$Keyword | T$Literal;\nvar T$UndefinedKeyword = 3 | T$Keyword | T$Literal;\nvar T$ThisScope = 4 | T$IdentifierOrKeyword;\nvar T$ParentScope = 5 | T$IdentifierOrKeyword;\n\nvar T$LParen = 6 | T$OpeningToken | T$AccessScopeTerminal | T$MemberOrCallExpression;\nvar T$LBrace = 7 | T$OpeningToken;\nvar T$Period = 8 | T$MemberExpression | T$MemberOrCallExpression;\nvar T$RBrace = 9 | T$AccessScopeTerminal | T$ClosingToken | T$ExpressionTerminal;\nvar T$RParen = 10 | T$AccessScopeTerminal | T$ClosingToken | T$ExpressionTerminal;\nvar T$Comma = 11 | T$AccessScopeTerminal;\nvar T$LBracket = 12 | T$OpeningToken | T$AccessScopeTerminal | T$MemberExpression | T$MemberOrCallExpression;\nvar T$RBracket = 13 | T$ClosingToken | T$ExpressionTerminal;\nvar T$Colon = 14 | T$AccessScopeTerminal;\nvar T$Question = 15;\n\nvar T$Ampersand = 18 | T$AccessScopeTerminal;\nvar T$Bar = 19 | T$AccessScopeTerminal;\nvar T$BarBar = 20 | 1 << T$PrecShift | T$BinaryOp;\nvar T$AmpersandAmpersand = 21 | 2 << T$PrecShift | T$BinaryOp;\nvar T$Caret = 22 | 3 << T$PrecShift | T$BinaryOp;\nvar T$EqEq = 23 | 4 << T$PrecShift | T$BinaryOp;\nvar T$BangEq = 24 | 4 << T$PrecShift | T$BinaryOp;\nvar T$EqEqEq = 25 | 4 << T$PrecShift | T$BinaryOp;\nvar T$BangEqEq = 26 | 4 << T$PrecShift | T$BinaryOp;\nvar T$Lt = 27 | 5 << T$PrecShift | T$BinaryOp;\nvar T$Gt = 28 | 5 << T$PrecShift | T$BinaryOp;\nvar T$LtEq = 29 | 5 << T$PrecShift | T$BinaryOp;\nvar T$GtEq = 30 | 5 << T$PrecShift | T$BinaryOp;\nvar T$InKeyword = 31 | 5 << T$PrecShift | T$BinaryOp | T$Keyword;\nvar T$InstanceOfKeyword = 32 | 5 << T$PrecShift | T$BinaryOp | T$Keyword;\nvar T$Plus = 33 | 6 << T$PrecShift | T$BinaryOp | T$UnaryOp;\nvar T$Minus = 34 | 6 << T$PrecShift | T$BinaryOp | T$UnaryOp;\nvar T$TypeofKeyword = 35 | T$UnaryOp | T$Keyword;\nvar T$VoidKeyword = 36 | T$UnaryOp | T$Keyword;\nvar T$Star = 37 | 7 << T$PrecShift | T$BinaryOp;\nvar T$Percent = 38 | 7 << T$PrecShift | T$BinaryOp;\nvar T$Slash = 39 | 7 << T$PrecShift | T$BinaryOp;\nvar T$Eq = 40;\nvar T$Bang = 41 | T$UnaryOp;\n\nvar KeywordLookup = Object.create(null);\nKeywordLookup.true = T$TrueKeyword;\nKeywordLookup.null = T$NullKeyword;\nKeywordLookup.false = T$FalseKeyword;\nKeywordLookup.undefined = T$UndefinedKeyword;\nKeywordLookup.$this = T$ThisScope;\nKeywordLookup.$parent = T$ParentScope;\nKeywordLookup.in = T$InKeyword;\nKeywordLookup.instanceof = T$InstanceOfKeyword;\nKeywordLookup.typeof = T$TypeofKeyword;\nKeywordLookup.void = T$VoidKeyword;\n\nvar TokenValues = [false, true, null, undefined, '$this', '$parent', '(', '{', '.', '}', ')', ',', '[', ']', ':', '?', '\\'', '\"', '&', '|', '||', '&&', '^', '==', '!=', '===', '!==', '<', '>', '<=', '>=', 'in', 'instanceof', '+', '-', 'typeof', 'void', '*', '%', '/', '=', '!'];\n\nvar codes = {\n  AsciiIdPart: [0x24, 0, 0x30, 0x3A, 0x41, 0x5B, 0x5F, 0, 0x61, 0x7B],\n  IdStart: [0x24, 0, 0x41, 0x5B, 0x5F, 0, 0x61, 0x7B, 0xAA, 0, 0xBA, 0, 0xC0, 0xD7, 0xD8, 0xF7, 0xF8, 0x2B9, 0x2E0, 0x2E5, 0x1D00, 0x1D26, 0x1D2C, 0x1D5D, 0x1D62, 0x1D66, 0x1D6B, 0x1D78, 0x1D79, 0x1DBF, 0x1E00, 0x1F00, 0x2071, 0, 0x207F, 0, 0x2090, 0x209D, 0x212A, 0x212C, 0x2132, 0, 0x214E, 0, 0x2160, 0x2189, 0x2C60, 0x2C80, 0xA722, 0xA788, 0xA78B, 0xA7AF, 0xA7B0, 0xA7B8, 0xA7F7, 0xA800, 0xAB30, 0xAB5B, 0xAB5C, 0xAB65, 0xFB00, 0xFB07, 0xFF21, 0xFF3B, 0xFF41, 0xFF5B],\n  Digit: [0x30, 0x3A],\n  Skip: [0, 0x21, 0x7F, 0xA1]\n};\n\nfunction decompress(lookup, set, compressed, value) {\n  var rangeCount = compressed.length;\n  for (var i = 0; i < rangeCount; i += 2) {\n    var start = compressed[i];\n    var end = compressed[i + 1];\n    end = end > 0 ? end : start + 1;\n    if (lookup) {\n      var j = start;\n      while (j < end) {\n        lookup[j] = value;\n        j++;\n      }\n    }\n    if (set) {\n      for (var ch = start; ch < end; ch++) {\n        set.add(ch);\n      }\n    }\n  }\n}\n\nfunction returnToken(token) {\n  return function (p) {\n    p.next();\n    return token;\n  };\n}\nfunction unexpectedCharacter(p) {\n  p.err('Unexpected character [' + fromCharCode(p.ch) + ']');\n  return null;\n}\n\nvar AsciiIdParts = new Set();\ndecompress(null, AsciiIdParts, codes.AsciiIdPart, true);\n\nvar IdParts = new Uint8Array(0xFFFF);\ndecompress(IdParts, null, codes.IdStart, 1);\ndecompress(IdParts, null, codes.Digit, 1);\n\nvar CharScanners = new Array(0xFFFF);\nvar ci = 0;\nwhile (ci < 0xFFFF) {\n  CharScanners[ci] = unexpectedCharacter;\n  ci++;\n}\n\ndecompress(CharScanners, null, codes.Skip, function (p) {\n  p.next();\n  return null;\n});\ndecompress(CharScanners, null, codes.IdStart, function (p) {\n  return p.scanIdentifier();\n});\ndecompress(CharScanners, null, codes.Digit, function (p) {\n  return p.scanNumber(false);\n});\n\nCharScanners[0x22] = CharScanners[0x27] = function (p) {\n  return p.scanString();\n};\nCharScanners[0x60] = function (p) {\n  return p.scanTemplate();\n};\n\nCharScanners[0x21] = function (p) {\n  if (p.next() !== 0x3D) {\n    return T$Bang;\n  }\n  if (p.next() !== 0x3D) {\n    return T$BangEq;\n  }\n  p.next();\n  return T$BangEqEq;\n};\n\nCharScanners[0x3D] = function (p) {\n  if (p.next() !== 0x3D) {\n    return T$Eq;\n  }\n  if (p.next() !== 0x3D) {\n    return T$EqEq;\n  }\n  p.next();\n  return T$EqEqEq;\n};\n\nCharScanners[0x26] = function (p) {\n  if (p.next() !== 0x26) {\n    return T$Ampersand;\n  }\n  p.next();\n  return T$AmpersandAmpersand;\n};\n\nCharScanners[0x7C] = function (p) {\n  if (p.next() !== 0x7C) {\n    return T$Bar;\n  }\n  p.next();\n  return T$BarBar;\n};\n\nCharScanners[0x2E] = function (p) {\n  if (p.next() <= 0x39 && p.ch >= 0x30) {\n    return p.scanNumber(true);\n  }\n  return T$Period;\n};\n\nCharScanners[0x3C] = function (p) {\n  if (p.next() !== 0x3D) {\n    return T$Lt;\n  }\n  p.next();\n  return T$LtEq;\n};\n\nCharScanners[0x3E] = function (p) {\n  if (p.next() !== 0x3D) {\n    return T$Gt;\n  }\n  p.next();\n  return T$GtEq;\n};\n\nCharScanners[0x25] = returnToken(T$Percent);\nCharScanners[0x28] = returnToken(T$LParen);\nCharScanners[0x29] = returnToken(T$RParen);\nCharScanners[0x2A] = returnToken(T$Star);\nCharScanners[0x2B] = returnToken(T$Plus);\nCharScanners[0x2C] = returnToken(T$Comma);\nCharScanners[0x2D] = returnToken(T$Minus);\nCharScanners[0x2F] = returnToken(T$Slash);\nCharScanners[0x3A] = returnToken(T$Colon);\nCharScanners[0x3F] = returnToken(T$Question);\nCharScanners[0x5B] = returnToken(T$LBracket);\nCharScanners[0x5D] = returnToken(T$RBracket);\nCharScanners[0x5E] = returnToken(T$Caret);\nCharScanners[0x7B] = returnToken(T$LBrace);\nCharScanners[0x7D] = returnToken(T$RBrace);\n\nvar mapProto = Map.prototype;\n\nfunction _getMapObserver(taskQueue, map) {\n  return ModifyMapObserver.for(taskQueue, map);\n}\n\nvar ModifyMapObserver = function (_ModifyCollectionObse2) {\n  _inherits(ModifyMapObserver, _ModifyCollectionObse2);\n\n  function ModifyMapObserver(taskQueue, map) {\n    \n\n    return _possibleConstructorReturn(this, _ModifyCollectionObse2.call(this, taskQueue, map));\n  }\n\n  ModifyMapObserver.for = function _for(taskQueue, map) {\n    if (!('__map_observer__' in map)) {\n      Reflect.defineProperty(map, '__map_observer__', {\n        value: ModifyMapObserver.create(taskQueue, map),\n        enumerable: false, configurable: false\n      });\n    }\n    return map.__map_observer__;\n  };\n\n  ModifyMapObserver.create = function create(taskQueue, map) {\n    var observer = new ModifyMapObserver(taskQueue, map);\n\n    var proto = mapProto;\n    if (proto.set !== map.set || proto.delete !== map.delete || proto.clear !== map.clear) {\n      proto = {\n        set: map.set,\n        delete: map.delete,\n        clear: map.clear\n      };\n    }\n\n    map.set = function () {\n      var hasValue = map.has(arguments[0]);\n      var type = hasValue ? 'update' : 'add';\n      var oldValue = map.get(arguments[0]);\n      var methodCallResult = proto.set.apply(map, arguments);\n      if (!hasValue || oldValue !== map.get(arguments[0])) {\n        observer.addChangeRecord({\n          type: type,\n          object: map,\n          key: arguments[0],\n          oldValue: oldValue\n        });\n      }\n      return methodCallResult;\n    };\n\n    map.delete = function () {\n      var hasValue = map.has(arguments[0]);\n      var oldValue = map.get(arguments[0]);\n      var methodCallResult = proto.delete.apply(map, arguments);\n      if (hasValue) {\n        observer.addChangeRecord({\n          type: 'delete',\n          object: map,\n          key: arguments[0],\n          oldValue: oldValue\n        });\n      }\n      return methodCallResult;\n    };\n\n    map.clear = function () {\n      var methodCallResult = proto.clear.apply(map, arguments);\n      observer.addChangeRecord({\n        type: 'clear',\n        object: map\n      });\n      return methodCallResult;\n    };\n\n    return observer;\n  };\n\n  return ModifyMapObserver;\n}(ModifyCollectionObserver);\n\nvar emLogger = LogManager.getLogger('event-manager');\n\nfunction findOriginalEventTarget(event) {\n  return event.composedPath && event.composedPath()[0] || event.deepPath && event.deepPath()[0] || event.path && event.path[0] || event.target;\n}\n\nfunction stopPropagation() {\n  this.standardStopPropagation();\n  this.propagationStopped = true;\n}\n\nfunction handleCapturedEvent(event) {\n  event.propagationStopped = false;\n  var target = findOriginalEventTarget(event);\n\n  var orderedCallbacks = [];\n\n  while (target) {\n    if (target.capturedCallbacks) {\n      var callback = target.capturedCallbacks[event.type];\n      if (callback) {\n        if (event.stopPropagation !== stopPropagation) {\n          event.standardStopPropagation = event.stopPropagation;\n          event.stopPropagation = stopPropagation;\n        }\n        orderedCallbacks.push(callback);\n      }\n    }\n    target = target.parentNode;\n  }\n  for (var i = orderedCallbacks.length - 1; i >= 0 && !event.propagationStopped; i--) {\n    var orderedCallback = orderedCallbacks[i];\n    if ('handleEvent' in orderedCallback) {\n      orderedCallback.handleEvent(event);\n    } else {\n      orderedCallback(event);\n    }\n  }\n}\n\nvar CapturedHandlerEntry = function () {\n  function CapturedHandlerEntry(eventName) {\n    \n\n    this.eventName = eventName;\n    this.count = 0;\n  }\n\n  CapturedHandlerEntry.prototype.increment = function increment() {\n    this.count++;\n\n    if (this.count === 1) {\n      DOM.addEventListener(this.eventName, handleCapturedEvent, true);\n    }\n  };\n\n  CapturedHandlerEntry.prototype.decrement = function decrement() {\n    if (this.count === 0) {\n      emLogger.warn('The same EventListener was disposed multiple times.');\n    } else if (--this.count === 0) {\n      DOM.removeEventListener(this.eventName, handleCapturedEvent, true);\n    }\n  };\n\n  return CapturedHandlerEntry;\n}();\n\nvar DelegateHandlerEntry = function () {\n  function DelegateHandlerEntry(eventName, eventManager) {\n    \n\n    this.eventName = eventName;\n    this.count = 0;\n    this.eventManager = eventManager;\n  }\n\n  DelegateHandlerEntry.prototype.handleEvent = function handleEvent(event) {\n    event.propagationStopped = false;\n    var target = findOriginalEventTarget(event);\n\n    while (target && !event.propagationStopped) {\n      if (target.delegatedCallbacks) {\n        var callback = target.delegatedCallbacks[event.type];\n        if (callback) {\n          if (event.stopPropagation !== stopPropagation) {\n            event.standardStopPropagation = event.stopPropagation;\n            event.stopPropagation = stopPropagation;\n          }\n          if ('handleEvent' in callback) {\n            callback.handleEvent(event);\n          } else {\n            callback(event);\n          }\n        }\n      }\n\n      var parent = target.parentNode;\n      var shouldEscapeShadowRoot = this.eventManager.escapeShadowRoot && parent instanceof ShadowRoot;\n\n      target = shouldEscapeShadowRoot ? parent.host : parent;\n    }\n  };\n\n  DelegateHandlerEntry.prototype.increment = function increment() {\n    this.count++;\n\n    if (this.count === 1) {\n      DOM.addEventListener(this.eventName, this, false);\n    }\n  };\n\n  DelegateHandlerEntry.prototype.decrement = function decrement() {\n    if (this.count === 0) {\n      emLogger.warn('The same EventListener was disposed multiple times.');\n    } else if (--this.count === 0) {\n      DOM.removeEventListener(this.eventName, this, false);\n    }\n  };\n\n  return DelegateHandlerEntry;\n}();\n\nvar DelegationEntryHandler = function () {\n  function DelegationEntryHandler(entry, lookup, targetEvent) {\n    \n\n    this.entry = entry;\n    this.lookup = lookup;\n    this.targetEvent = targetEvent;\n  }\n\n  DelegationEntryHandler.prototype.dispose = function dispose() {\n    if (this.lookup[this.targetEvent]) {\n      this.entry.decrement();\n      this.lookup[this.targetEvent] = null;\n    } else {\n      emLogger.warn('Calling .dispose() on already disposed eventListener');\n    }\n  };\n\n  return DelegationEntryHandler;\n}();\n\nvar EventHandler = function () {\n  function EventHandler(target, targetEvent, callback) {\n    \n\n    this.target = target;\n    this.targetEvent = targetEvent;\n    this.callback = callback;\n  }\n\n  EventHandler.prototype.dispose = function dispose() {\n    this.target.removeEventListener(this.targetEvent, this.callback);\n  };\n\n  return EventHandler;\n}();\n\nvar DefaultEventStrategy = function () {\n  function DefaultEventStrategy(eventManager) {\n    \n\n    this.delegatedHandlers = {};\n    this.capturedHandlers = {};\n\n    this.eventManager = eventManager;\n  }\n\n  DefaultEventStrategy.prototype.subscribe = function subscribe(target, targetEvent, callback, strategy, disposable) {\n    var delegatedHandlers = void 0;\n    var capturedHandlers = void 0;\n    var handlerEntry = void 0;\n\n    if (strategy === delegationStrategy.bubbling) {\n      delegatedHandlers = this.delegatedHandlers;\n      handlerEntry = delegatedHandlers[targetEvent] || (delegatedHandlers[targetEvent] = new DelegateHandlerEntry(targetEvent, this.eventManager));\n      var delegatedCallbacks = target.delegatedCallbacks || (target.delegatedCallbacks = {});\n      if (!delegatedCallbacks[targetEvent]) {\n        handlerEntry.increment();\n      } else {\n        emLogger.warn('Overriding previous callback for event listener', { event: targetEvent, callback: callback, previousCallback: delegatedCallbacks[targetEvent] });\n      }\n      delegatedCallbacks[targetEvent] = callback;\n\n      if (disposable === true) {\n        return new DelegationEntryHandler(handlerEntry, delegatedCallbacks, targetEvent);\n      }\n\n      return function () {\n        handlerEntry.decrement();\n        delegatedCallbacks[targetEvent] = null;\n      };\n    }\n    if (strategy === delegationStrategy.capturing) {\n      capturedHandlers = this.capturedHandlers;\n      handlerEntry = capturedHandlers[targetEvent] || (capturedHandlers[targetEvent] = new CapturedHandlerEntry(targetEvent));\n      var capturedCallbacks = target.capturedCallbacks || (target.capturedCallbacks = {});\n      if (!capturedCallbacks[targetEvent]) {\n        handlerEntry.increment();\n      } else {\n        emLogger.error('already have a callback for event', { event: targetEvent, callback: callback });\n      }\n      capturedCallbacks[targetEvent] = callback;\n\n      if (disposable === true) {\n        return new DelegationEntryHandler(handlerEntry, capturedCallbacks, targetEvent);\n      }\n\n      return function () {\n        handlerEntry.decrement();\n        capturedCallbacks[targetEvent] = null;\n      };\n    }\n\n    target.addEventListener(targetEvent, callback);\n\n    if (disposable === true) {\n      return new EventHandler(target, targetEvent, callback);\n    }\n\n    return function () {\n      target.removeEventListener(targetEvent, callback);\n    };\n  };\n\n  return DefaultEventStrategy;\n}();\n\nexport var delegationStrategy = {\n  none: 0,\n  capturing: 1,\n  bubbling: 2\n};\n\nexport var EventManager = function () {\n  function EventManager() {\n    var escapeShadowRoot = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;\n\n    \n\n    this.elementHandlerLookup = {};\n    this.eventStrategyLookup = {};\n    this.escapeShadowRoot = escapeShadowRoot;\n\n    this.registerElementConfig({\n      tagName: 'input',\n      properties: {\n        value: ['change', 'input'],\n        checked: ['change', 'input'],\n        files: ['change', 'input']\n      }\n    });\n\n    this.registerElementConfig({\n      tagName: 'textarea',\n      properties: {\n        value: ['change', 'input']\n      }\n    });\n\n    this.registerElementConfig({\n      tagName: 'select',\n      properties: {\n        value: ['change']\n      }\n    });\n\n    this.registerElementConfig({\n      tagName: 'content editable',\n      properties: {\n        value: ['change', 'input', 'blur', 'keyup', 'paste']\n      }\n    });\n\n    this.registerElementConfig({\n      tagName: 'scrollable element',\n      properties: {\n        scrollTop: ['scroll'],\n        scrollLeft: ['scroll']\n      }\n    });\n\n    this.defaultEventStrategy = new DefaultEventStrategy(this);\n  }\n\n  EventManager.prototype.registerElementConfig = function registerElementConfig(config) {\n    var tagName = config.tagName.toLowerCase();\n    var properties = config.properties;\n    var propertyName = void 0;\n\n    var lookup = this.elementHandlerLookup[tagName] = {};\n\n    for (propertyName in properties) {\n      if (properties.hasOwnProperty(propertyName)) {\n        lookup[propertyName] = properties[propertyName];\n      }\n    }\n  };\n\n  EventManager.prototype.registerEventStrategy = function registerEventStrategy(eventName, strategy) {\n    this.eventStrategyLookup[eventName] = strategy;\n  };\n\n  EventManager.prototype.getElementHandler = function getElementHandler(target, propertyName) {\n    var tagName = void 0;\n    var lookup = this.elementHandlerLookup;\n\n    if (target.tagName) {\n      tagName = target.tagName.toLowerCase();\n\n      if (lookup[tagName] && lookup[tagName][propertyName]) {\n        return new EventSubscriber(lookup[tagName][propertyName]);\n      }\n\n      if (propertyName === 'textContent' || propertyName === 'innerHTML') {\n        return new EventSubscriber(lookup['content editable'].value);\n      }\n\n      if (propertyName === 'scrollTop' || propertyName === 'scrollLeft') {\n        return new EventSubscriber(lookup['scrollable element'][propertyName]);\n      }\n    }\n\n    return null;\n  };\n\n  EventManager.prototype.addEventListener = function addEventListener(target, targetEvent, callbackOrListener, delegate, disposable) {\n    return (this.eventStrategyLookup[targetEvent] || this.defaultEventStrategy).subscribe(target, targetEvent, callbackOrListener, delegate, disposable);\n  };\n\n  return EventManager;\n}();\n\nexport var EventSubscriber = function () {\n  function EventSubscriber(events) {\n    \n\n    this.events = events;\n    this.element = null;\n    this.handler = null;\n  }\n\n  EventSubscriber.prototype.subscribe = function subscribe(element, callbackOrListener) {\n    this.element = element;\n    this.handler = callbackOrListener;\n\n    var events = this.events;\n    for (var i = 0, ii = events.length; ii > i; ++i) {\n      element.addEventListener(events[i], callbackOrListener);\n    }\n  };\n\n  EventSubscriber.prototype.dispose = function dispose() {\n    if (this.element === null) {\n      return;\n    }\n    var element = this.element;\n    var callbackOrListener = this.handler;\n    var events = this.events;\n    for (var i = 0, ii = events.length; ii > i; ++i) {\n      element.removeEventListener(events[i], callbackOrListener);\n    }\n    this.element = this.handler = null;\n  };\n\n  return EventSubscriber;\n}();\n\nexport var DirtyChecker = function () {\n  function DirtyChecker() {\n    \n\n    this.tracked = [];\n    this.checkDelay = 120;\n  }\n\n  DirtyChecker.prototype.addProperty = function addProperty(property) {\n    var tracked = this.tracked;\n\n    tracked.push(property);\n\n    if (tracked.length === 1) {\n      this.scheduleDirtyCheck();\n    }\n  };\n\n  DirtyChecker.prototype.removeProperty = function removeProperty(property) {\n    var tracked = this.tracked;\n    tracked.splice(tracked.indexOf(property), 1);\n  };\n\n  DirtyChecker.prototype.scheduleDirtyCheck = function scheduleDirtyCheck() {\n    var _this22 = this;\n\n    setTimeout(function () {\n      return _this22.check();\n    }, this.checkDelay);\n  };\n\n  DirtyChecker.prototype.check = function check() {\n    var tracked = this.tracked;\n    var i = tracked.length;\n\n    while (i--) {\n      var current = tracked[i];\n\n      if (current.isDirty()) {\n        current.call();\n      }\n    }\n\n    if (tracked.length) {\n      this.scheduleDirtyCheck();\n    }\n  };\n\n  return DirtyChecker;\n}();\n\nexport var DirtyCheckProperty = (_dec5 = subscriberCollection(), _dec5(_class5 = function () {\n  function DirtyCheckProperty(dirtyChecker, obj, propertyName) {\n    \n\n    this.dirtyChecker = dirtyChecker;\n    this.obj = obj;\n    this.propertyName = propertyName;\n  }\n\n  DirtyCheckProperty.prototype.getValue = function getValue() {\n    return this.obj[this.propertyName];\n  };\n\n  DirtyCheckProperty.prototype.setValue = function setValue(newValue) {\n    this.obj[this.propertyName] = newValue;\n  };\n\n  DirtyCheckProperty.prototype.call = function call() {\n    var oldValue = this.oldValue;\n    var newValue = this.getValue();\n\n    this.callSubscribers(newValue, oldValue);\n\n    this.oldValue = newValue;\n  };\n\n  DirtyCheckProperty.prototype.isDirty = function isDirty() {\n    return this.oldValue !== this.obj[this.propertyName];\n  };\n\n  DirtyCheckProperty.prototype.subscribe = function subscribe(context, callable) {\n    if (!this.hasSubscribers()) {\n      this.oldValue = this.getValue();\n      this.dirtyChecker.addProperty(this);\n    }\n    this.addSubscriber(context, callable);\n  };\n\n  DirtyCheckProperty.prototype.unsubscribe = function unsubscribe(context, callable) {\n    if (this.removeSubscriber(context, callable) && !this.hasSubscribers()) {\n      this.dirtyChecker.removeProperty(this);\n    }\n  };\n\n  return DirtyCheckProperty;\n}()) || _class5);\n\nvar logger = LogManager.getLogger('property-observation');\n\nexport var propertyAccessor = {\n  getValue: function getValue(obj, propertyName) {\n    return obj[propertyName];\n  },\n  setValue: function setValue(value, obj, propertyName) {\n    obj[propertyName] = value;\n  }\n};\n\nexport var PrimitiveObserver = function () {\n  function PrimitiveObserver(primitive, propertyName) {\n    \n\n    this.doNotCache = true;\n\n    this.primitive = primitive;\n    this.propertyName = propertyName;\n  }\n\n  PrimitiveObserver.prototype.getValue = function getValue() {\n    return this.primitive[this.propertyName];\n  };\n\n  PrimitiveObserver.prototype.setValue = function setValue() {\n    var type = _typeof(this.primitive);\n    throw new Error('The ' + this.propertyName + ' property of a ' + type + ' (' + this.primitive + ') cannot be assigned.');\n  };\n\n  PrimitiveObserver.prototype.subscribe = function subscribe() {};\n\n  PrimitiveObserver.prototype.unsubscribe = function unsubscribe() {};\n\n  return PrimitiveObserver;\n}();\n\nexport var SetterObserver = (_dec6 = subscriberCollection(), _dec6(_class7 = function () {\n  function SetterObserver(taskQueue, obj, propertyName) {\n    \n\n    this.taskQueue = taskQueue;\n    this.obj = obj;\n    this.propertyName = propertyName;\n    this.queued = false;\n    this.observing = false;\n  }\n\n  SetterObserver.prototype.getValue = function getValue() {\n    return this.obj[this.propertyName];\n  };\n\n  SetterObserver.prototype.setValue = function setValue(newValue) {\n    this.obj[this.propertyName] = newValue;\n  };\n\n  SetterObserver.prototype.getterValue = function getterValue() {\n    return this.currentValue;\n  };\n\n  SetterObserver.prototype.setterValue = function setterValue(newValue) {\n    var oldValue = this.currentValue;\n\n    if (oldValue !== newValue) {\n      if (!this.queued) {\n        this.oldValue = oldValue;\n        this.queued = true;\n        this.taskQueue.queueMicroTask(this);\n      }\n\n      this.currentValue = newValue;\n    }\n  };\n\n  SetterObserver.prototype.call = function call() {\n    var oldValue = this.oldValue;\n    var newValue = this.oldValue = this.currentValue;\n\n    this.queued = false;\n\n    this.callSubscribers(newValue, oldValue);\n  };\n\n  SetterObserver.prototype.subscribe = function subscribe(context, callable) {\n    if (!this.observing) {\n      this.convertProperty();\n    }\n    this.addSubscriber(context, callable);\n  };\n\n  SetterObserver.prototype.unsubscribe = function unsubscribe(context, callable) {\n    this.removeSubscriber(context, callable);\n  };\n\n  SetterObserver.prototype.convertProperty = function convertProperty() {\n    this.observing = true;\n    this.currentValue = this.obj[this.propertyName];\n    this.setValue = this.setterValue;\n    this.getValue = this.getterValue;\n\n    if (!Reflect.defineProperty(this.obj, this.propertyName, {\n      configurable: true,\n      enumerable: this.propertyName in this.obj ? this.obj.propertyIsEnumerable(this.propertyName) : true,\n      get: this.getValue.bind(this),\n      set: this.setValue.bind(this)\n    })) {\n      logger.warn('Cannot observe property \\'' + this.propertyName + '\\' of object', this.obj);\n    }\n  };\n\n  return SetterObserver;\n}()) || _class7);\n\nexport var XLinkAttributeObserver = function () {\n  function XLinkAttributeObserver(element, propertyName, attributeName) {\n    \n\n    this.element = element;\n    this.propertyName = propertyName;\n    this.attributeName = attributeName;\n  }\n\n  XLinkAttributeObserver.prototype.getValue = function getValue() {\n    return this.element.getAttributeNS('http://www.w3.org/1999/xlink', this.attributeName);\n  };\n\n  XLinkAttributeObserver.prototype.setValue = function setValue(newValue) {\n    return this.element.setAttributeNS('http://www.w3.org/1999/xlink', this.attributeName, newValue);\n  };\n\n  XLinkAttributeObserver.prototype.subscribe = function subscribe() {\n    throw new Error('Observation of a \"' + this.element.nodeName + '\" element\\'s \"' + this.propertyName + '\" property is not supported.');\n  };\n\n  return XLinkAttributeObserver;\n}();\n\nexport var dataAttributeAccessor = {\n  getValue: function getValue(obj, propertyName) {\n    return obj.getAttribute(propertyName);\n  },\n  setValue: function setValue(value, obj, propertyName) {\n    if (value === null || value === undefined) {\n      obj.removeAttribute(propertyName);\n    } else {\n      obj.setAttribute(propertyName, value);\n    }\n  }\n};\n\nexport var DataAttributeObserver = function () {\n  function DataAttributeObserver(element, propertyName) {\n    \n\n    this.element = element;\n    this.propertyName = propertyName;\n  }\n\n  DataAttributeObserver.prototype.getValue = function getValue() {\n    return this.element.getAttribute(this.propertyName);\n  };\n\n  DataAttributeObserver.prototype.setValue = function setValue(newValue) {\n    if (newValue === null || newValue === undefined) {\n      return this.element.removeAttribute(this.propertyName);\n    }\n    return this.element.setAttribute(this.propertyName, newValue);\n  };\n\n  DataAttributeObserver.prototype.subscribe = function subscribe() {\n    throw new Error('Observation of a \"' + this.element.nodeName + '\" element\\'s \"' + this.propertyName + '\" property is not supported.');\n  };\n\n  return DataAttributeObserver;\n}();\n\nexport var StyleObserver = function () {\n  function StyleObserver(element, propertyName) {\n    \n\n    this.element = element;\n    this.propertyName = propertyName;\n\n    this.styles = null;\n    this.version = 0;\n  }\n\n  StyleObserver.prototype.getValue = function getValue() {\n    return this.element.style.cssText;\n  };\n\n  StyleObserver.prototype._setProperty = function _setProperty(style, value) {\n    var priority = '';\n\n    if (value !== null && value !== undefined && typeof value.indexOf === 'function' && value.indexOf('!important') !== -1) {\n      priority = 'important';\n      value = value.replace('!important', '');\n    }\n    this.element.style.setProperty(style, value, priority);\n  };\n\n  StyleObserver.prototype.setValue = function setValue(newValue) {\n    var styles = this.styles || {};\n    var style = void 0;\n    var version = this.version;\n\n    if (newValue !== null && newValue !== undefined) {\n      if (newValue instanceof Object) {\n        var value = void 0;\n        for (style in newValue) {\n          if (newValue.hasOwnProperty(style)) {\n            value = newValue[style];\n            style = style.replace(/([A-Z])/g, function (m) {\n              return '-' + m.toLowerCase();\n            });\n            styles[style] = version;\n            this._setProperty(style, value);\n          }\n        }\n      } else if (newValue.length) {\n        var rx = /\\s*([\\w\\-]+)\\s*:\\s*((?:(?:[\\w\\-]+\\(\\s*(?:\"(?:\\\\\"|[^\"])*\"|'(?:\\\\'|[^'])*'|[\\w\\-]+\\(\\s*(?:^\"(?:\\\\\"|[^\"])*\"|'(?:\\\\'|[^'])*'|[^\\)]*)\\),?|[^\\)]*)\\),?|\"(?:\\\\\"|[^\"])*\"|'(?:\\\\'|[^'])*'|[^;]*),?\\s*)+);?/g;\n        var pair = void 0;\n        while ((pair = rx.exec(newValue)) !== null) {\n          style = pair[1];\n          if (!style) {\n            continue;\n          }\n\n          styles[style] = version;\n          this._setProperty(style, pair[2]);\n        }\n      }\n    }\n\n    this.styles = styles;\n    this.version += 1;\n\n    if (version === 0) {\n      return;\n    }\n\n    version -= 1;\n    for (style in styles) {\n      if (!styles.hasOwnProperty(style) || styles[style] !== version) {\n        continue;\n      }\n\n      this.element.style.removeProperty(style);\n    }\n  };\n\n  StyleObserver.prototype.subscribe = function subscribe() {\n    throw new Error('Observation of a \"' + this.element.nodeName + '\" element\\'s \"' + this.propertyName + '\" property is not supported.');\n  };\n\n  return StyleObserver;\n}();\n\nexport var ValueAttributeObserver = (_dec7 = subscriberCollection(), _dec7(_class8 = function () {\n  function ValueAttributeObserver(element, propertyName, handler) {\n    \n\n    this.element = element;\n    this.propertyName = propertyName;\n    this.handler = handler;\n    if (propertyName === 'files') {\n      this.setValue = function () {};\n    }\n  }\n\n  ValueAttributeObserver.prototype.getValue = function getValue() {\n    return this.element[this.propertyName];\n  };\n\n  ValueAttributeObserver.prototype.setValue = function setValue(newValue) {\n    newValue = newValue === undefined || newValue === null ? '' : newValue;\n    if (this.element[this.propertyName] !== newValue) {\n      this.element[this.propertyName] = newValue;\n      this.notify();\n    }\n  };\n\n  ValueAttributeObserver.prototype.notify = function notify() {\n    var oldValue = this.oldValue;\n    var newValue = this.getValue();\n\n    this.callSubscribers(newValue, oldValue);\n\n    this.oldValue = newValue;\n  };\n\n  ValueAttributeObserver.prototype.handleEvent = function handleEvent() {\n    this.notify();\n  };\n\n  ValueAttributeObserver.prototype.subscribe = function subscribe(context, callable) {\n    if (!this.hasSubscribers()) {\n      this.oldValue = this.getValue();\n      this.handler.subscribe(this.element, this);\n    }\n\n    this.addSubscriber(context, callable);\n  };\n\n  ValueAttributeObserver.prototype.unsubscribe = function unsubscribe(context, callable) {\n    if (this.removeSubscriber(context, callable) && !this.hasSubscribers()) {\n      this.handler.dispose();\n    }\n  };\n\n  return ValueAttributeObserver;\n}()) || _class8);\n\nvar checkedArrayContext = 'CheckedObserver:array';\nvar checkedValueContext = 'CheckedObserver:value';\n\nexport var CheckedObserver = (_dec8 = subscriberCollection(), _dec8(_class9 = function () {\n  function CheckedObserver(element, handler, observerLocator) {\n    \n\n    this.element = element;\n    this.handler = handler;\n    this.observerLocator = observerLocator;\n  }\n\n  CheckedObserver.prototype.getValue = function getValue() {\n    return this.value;\n  };\n\n  CheckedObserver.prototype.setValue = function setValue(newValue) {\n    if (this.initialSync && this.value === newValue) {\n      return;\n    }\n\n    if (this.arrayObserver) {\n      this.arrayObserver.unsubscribe(checkedArrayContext, this);\n      this.arrayObserver = null;\n    }\n\n    if (this.element.type === 'checkbox' && Array.isArray(newValue)) {\n      this.arrayObserver = this.observerLocator.getArrayObserver(newValue);\n      this.arrayObserver.subscribe(checkedArrayContext, this);\n    }\n\n    this.oldValue = this.value;\n    this.value = newValue;\n    this.synchronizeElement();\n    this.notify();\n\n    if (!this.initialSync) {\n      this.initialSync = true;\n      this.observerLocator.taskQueue.queueMicroTask(this);\n    }\n  };\n\n  CheckedObserver.prototype.call = function call(context, splices) {\n    this.synchronizeElement();\n\n    if (!this.valueObserver) {\n      this.valueObserver = this.element.__observers__.model || this.element.__observers__.value;\n      if (this.valueObserver) {\n        this.valueObserver.subscribe(checkedValueContext, this);\n      }\n    }\n  };\n\n  CheckedObserver.prototype.synchronizeElement = function synchronizeElement() {\n    var value = this.value;\n    var element = this.element;\n    var elementValue = element.hasOwnProperty('model') ? element.model : element.value;\n    var isRadio = element.type === 'radio';\n    var matcher = element.matcher || function (a, b) {\n      return a === b;\n    };\n\n    element.checked = isRadio && !!matcher(value, elementValue) || !isRadio && value === true || !isRadio && Array.isArray(value) && value.findIndex(function (item) {\n      return !!matcher(item, elementValue);\n    }) !== -1;\n  };\n\n  CheckedObserver.prototype.synchronizeValue = function synchronizeValue() {\n    var value = this.value;\n    var element = this.element;\n    var elementValue = element.hasOwnProperty('model') ? element.model : element.value;\n    var index = void 0;\n    var matcher = element.matcher || function (a, b) {\n      return a === b;\n    };\n\n    if (element.type === 'checkbox') {\n      if (Array.isArray(value)) {\n        index = value.findIndex(function (item) {\n          return !!matcher(item, elementValue);\n        });\n        if (element.checked && index === -1) {\n          value.push(elementValue);\n        } else if (!element.checked && index !== -1) {\n          value.splice(index, 1);\n        }\n\n        return;\n      }\n\n      value = element.checked;\n    } else if (element.checked) {\n      value = elementValue;\n    } else {\n      return;\n    }\n\n    this.oldValue = this.value;\n    this.value = value;\n    this.notify();\n  };\n\n  CheckedObserver.prototype.notify = function notify() {\n    var oldValue = this.oldValue;\n    var newValue = this.value;\n\n    if (newValue === oldValue) {\n      return;\n    }\n\n    this.callSubscribers(newValue, oldValue);\n  };\n\n  CheckedObserver.prototype.handleEvent = function handleEvent() {\n    this.synchronizeValue();\n  };\n\n  CheckedObserver.prototype.subscribe = function subscribe(context, callable) {\n    if (!this.hasSubscribers()) {\n      this.handler.subscribe(this.element, this);\n    }\n    this.addSubscriber(context, callable);\n  };\n\n  CheckedObserver.prototype.unsubscribe = function unsubscribe(context, callable) {\n    if (this.removeSubscriber(context, callable) && !this.hasSubscribers()) {\n      this.handler.dispose();\n    }\n  };\n\n  CheckedObserver.prototype.unbind = function unbind() {\n    if (this.arrayObserver) {\n      this.arrayObserver.unsubscribe(checkedArrayContext, this);\n      this.arrayObserver = null;\n    }\n    if (this.valueObserver) {\n      this.valueObserver.unsubscribe(checkedValueContext, this);\n    }\n  };\n\n  return CheckedObserver;\n}()) || _class9);\n\nvar selectArrayContext = 'SelectValueObserver:array';\n\nexport var SelectValueObserver = (_dec9 = subscriberCollection(), _dec9(_class10 = function () {\n  function SelectValueObserver(element, handler, observerLocator) {\n    \n\n    this.element = element;\n    this.handler = handler;\n    this.observerLocator = observerLocator;\n  }\n\n  SelectValueObserver.prototype.getValue = function getValue() {\n    return this.value;\n  };\n\n  SelectValueObserver.prototype.setValue = function setValue(newValue) {\n    if (newValue !== null && newValue !== undefined && this.element.multiple && !Array.isArray(newValue)) {\n      throw new Error('Only null or Array instances can be bound to a multi-select.');\n    }\n    if (this.value === newValue) {\n      return;\n    }\n\n    if (this.arrayObserver) {\n      this.arrayObserver.unsubscribe(selectArrayContext, this);\n      this.arrayObserver = null;\n    }\n\n    if (Array.isArray(newValue)) {\n      this.arrayObserver = this.observerLocator.getArrayObserver(newValue);\n      this.arrayObserver.subscribe(selectArrayContext, this);\n    }\n\n    this.oldValue = this.value;\n    this.value = newValue;\n    this.synchronizeOptions();\n    this.notify();\n\n    if (!this.initialSync) {\n      this.initialSync = true;\n      this.observerLocator.taskQueue.queueMicroTask(this);\n    }\n  };\n\n  SelectValueObserver.prototype.call = function call(context, splices) {\n    this.synchronizeOptions();\n  };\n\n  SelectValueObserver.prototype.synchronizeOptions = function synchronizeOptions() {\n    var value = this.value;\n    var isArray = void 0;\n\n    if (Array.isArray(value)) {\n      isArray = true;\n    }\n\n    var options = this.element.options;\n    var i = options.length;\n    var matcher = this.element.matcher || function (a, b) {\n      return a === b;\n    };\n\n    var _loop = function _loop() {\n      var option = options.item(i);\n      var optionValue = option.hasOwnProperty('model') ? option.model : option.value;\n      if (isArray) {\n        option.selected = value.findIndex(function (item) {\n          return !!matcher(optionValue, item);\n        }) !== -1;\n        return 'continue';\n      }\n      option.selected = !!matcher(optionValue, value);\n    };\n\n    while (i--) {\n      var _ret = _loop();\n\n      if (_ret === 'continue') continue;\n    }\n  };\n\n  SelectValueObserver.prototype.synchronizeValue = function synchronizeValue() {\n    var _this23 = this;\n\n    var options = this.element.options;\n    var count = 0;\n    var value = [];\n\n    for (var i = 0, ii = options.length; i < ii; i++) {\n      var _option = options.item(i);\n      if (!_option.selected) {\n        continue;\n      }\n      value.push(_option.hasOwnProperty('model') ? _option.model : _option.value);\n      count++;\n    }\n\n    if (this.element.multiple) {\n      if (Array.isArray(this.value)) {\n        var _ret2 = function () {\n          var matcher = _this23.element.matcher || function (a, b) {\n            return a === b;\n          };\n\n          var i = 0;\n\n          var _loop2 = function _loop2() {\n            var a = _this23.value[i];\n            if (value.findIndex(function (b) {\n              return matcher(a, b);\n            }) === -1) {\n              _this23.value.splice(i, 1);\n            } else {\n              i++;\n            }\n          };\n\n          while (i < _this23.value.length) {\n            _loop2();\n          }\n\n          i = 0;\n\n          var _loop3 = function _loop3() {\n            var a = value[i];\n            if (_this23.value.findIndex(function (b) {\n              return matcher(a, b);\n            }) === -1) {\n              _this23.value.push(a);\n            }\n            i++;\n          };\n\n          while (i < value.length) {\n            _loop3();\n          }\n          return {\n            v: void 0\n          };\n        }();\n\n        if ((typeof _ret2 === 'undefined' ? 'undefined' : _typeof(_ret2)) === \"object\") return _ret2.v;\n      }\n    } else {\n      if (count === 0) {\n        value = null;\n      } else {\n        value = value[0];\n      }\n    }\n\n    if (value !== this.value) {\n      this.oldValue = this.value;\n      this.value = value;\n      this.notify();\n    }\n  };\n\n  SelectValueObserver.prototype.notify = function notify() {\n    var oldValue = this.oldValue;\n    var newValue = this.value;\n\n    this.callSubscribers(newValue, oldValue);\n  };\n\n  SelectValueObserver.prototype.handleEvent = function handleEvent() {\n    this.synchronizeValue();\n  };\n\n  SelectValueObserver.prototype.subscribe = function subscribe(context, callable) {\n    if (!this.hasSubscribers()) {\n      this.handler.subscribe(this.element, this);\n    }\n    this.addSubscriber(context, callable);\n  };\n\n  SelectValueObserver.prototype.unsubscribe = function unsubscribe(context, callable) {\n    if (this.removeSubscriber(context, callable) && !this.hasSubscribers()) {\n      this.handler.dispose();\n    }\n  };\n\n  SelectValueObserver.prototype.bind = function bind() {\n    var _this24 = this;\n\n    this.domObserver = DOM.createMutationObserver(function () {\n      _this24.synchronizeOptions();\n      _this24.synchronizeValue();\n    });\n    this.domObserver.observe(this.element, { childList: true, subtree: true, characterData: true });\n  };\n\n  SelectValueObserver.prototype.unbind = function unbind() {\n    this.domObserver.disconnect();\n    this.domObserver = null;\n\n    if (this.arrayObserver) {\n      this.arrayObserver.unsubscribe(selectArrayContext, this);\n      this.arrayObserver = null;\n    }\n  };\n\n  return SelectValueObserver;\n}()) || _class10);\n\nexport var ClassObserver = function () {\n  function ClassObserver(element) {\n    \n\n    this.element = element;\n    this.doNotCache = true;\n    this.value = '';\n    this.version = 0;\n  }\n\n  ClassObserver.prototype.getValue = function getValue() {\n    return this.value;\n  };\n\n  ClassObserver.prototype.setValue = function setValue(newValue) {\n    var nameIndex = this.nameIndex || {};\n    var version = this.version;\n    var names = void 0;\n    var name = void 0;\n\n    if (newValue !== null && newValue !== undefined && newValue.length) {\n      names = newValue.split(/\\s+/);\n      for (var i = 0, length = names.length; i < length; i++) {\n        name = names[i];\n        if (name === '') {\n          continue;\n        }\n        nameIndex[name] = version;\n        this.element.classList.add(name);\n      }\n    }\n\n    this.value = newValue;\n    this.nameIndex = nameIndex;\n    this.version += 1;\n\n    if (version === 0) {\n      return;\n    }\n\n    version -= 1;\n    for (name in nameIndex) {\n      if (!nameIndex.hasOwnProperty(name) || nameIndex[name] !== version) {\n        continue;\n      }\n      this.element.classList.remove(name);\n    }\n  };\n\n  ClassObserver.prototype.subscribe = function subscribe() {\n    throw new Error('Observation of a \"' + this.element.nodeName + '\" element\\'s \"class\" property is not supported.');\n  };\n\n  return ClassObserver;\n}();\n\nexport function hasDeclaredDependencies(descriptor) {\n  return !!(descriptor && descriptor.get && descriptor.get.dependencies);\n}\n\nexport function declarePropertyDependencies(ctor, propertyName, dependencies) {\n  var descriptor = Object.getOwnPropertyDescriptor(ctor.prototype, propertyName);\n  descriptor.get.dependencies = dependencies;\n}\n\nexport function computedFrom() {\n  for (var _len = arguments.length, rest = Array(_len), _key = 0; _key < _len; _key++) {\n    rest[_key] = arguments[_key];\n  }\n\n  return function (target, key, descriptor) {\n    descriptor.get.dependencies = rest;\n    return descriptor;\n  };\n}\n\nexport var ComputedExpression = function (_Expression19) {\n  _inherits(ComputedExpression, _Expression19);\n\n  function ComputedExpression(name, dependencies) {\n    \n\n    var _this25 = _possibleConstructorReturn(this, _Expression19.call(this));\n\n    _this25.name = name;\n    _this25.dependencies = dependencies;\n    _this25.isAssignable = true;\n    return _this25;\n  }\n\n  ComputedExpression.prototype.evaluate = function evaluate(scope, lookupFunctions) {\n    return scope.bindingContext[this.name];\n  };\n\n  ComputedExpression.prototype.assign = function assign(scope, value) {\n    scope.bindingContext[this.name] = value;\n  };\n\n  ComputedExpression.prototype.accept = function accept(visitor) {\n    throw new Error('not implemented');\n  };\n\n  ComputedExpression.prototype.connect = function connect(binding, scope) {\n    var dependencies = this.dependencies;\n    var i = dependencies.length;\n    while (i--) {\n      dependencies[i].connect(binding, scope);\n    }\n  };\n\n  return ComputedExpression;\n}(Expression);\n\nexport function createComputedObserver(obj, propertyName, descriptor, observerLocator) {\n  var dependencies = descriptor.get.dependencies;\n  if (!(dependencies instanceof ComputedExpression)) {\n    var i = dependencies.length;\n    while (i--) {\n      dependencies[i] = observerLocator.parser.parse(dependencies[i]);\n    }\n    dependencies = descriptor.get.dependencies = new ComputedExpression(propertyName, dependencies);\n  }\n\n  var scope = { bindingContext: obj, overrideContext: createOverrideContext(obj) };\n  return new ExpressionObserver(scope, dependencies, observerLocator);\n}\n\nvar svgElements = void 0;\nvar svgPresentationElements = void 0;\nvar svgPresentationAttributes = void 0;\nvar svgAnalyzer = void 0;\n\nif (typeof FEATURE_NO_SVG === 'undefined') {\n  svgElements = {\n    a: ['class', 'externalResourcesRequired', 'id', 'onactivate', 'onclick', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'requiredExtensions', 'requiredFeatures', 'style', 'systemLanguage', 'target', 'transform', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space'],\n    altGlyph: ['class', 'dx', 'dy', 'externalResourcesRequired', 'format', 'glyphRef', 'id', 'onactivate', 'onclick', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'requiredExtensions', 'requiredFeatures', 'rotate', 'style', 'systemLanguage', 'x', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    altGlyphDef: ['id', 'xml:base', 'xml:lang', 'xml:space'],\n    altGlyphItem: ['id', 'xml:base', 'xml:lang', 'xml:space'],\n    animate: ['accumulate', 'additive', 'attributeName', 'attributeType', 'begin', 'by', 'calcMode', 'dur', 'end', 'externalResourcesRequired', 'fill', 'from', 'id', 'keySplines', 'keyTimes', 'max', 'min', 'onbegin', 'onend', 'onload', 'onrepeat', 'repeatCount', 'repeatDur', 'requiredExtensions', 'requiredFeatures', 'restart', 'systemLanguage', 'to', 'values', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space'],\n    animateColor: ['accumulate', 'additive', 'attributeName', 'attributeType', 'begin', 'by', 'calcMode', 'dur', 'end', 'externalResourcesRequired', 'fill', 'from', 'id', 'keySplines', 'keyTimes', 'max', 'min', 'onbegin', 'onend', 'onload', 'onrepeat', 'repeatCount', 'repeatDur', 'requiredExtensions', 'requiredFeatures', 'restart', 'systemLanguage', 'to', 'values', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space'],\n    animateMotion: ['accumulate', 'additive', 'begin', 'by', 'calcMode', 'dur', 'end', 'externalResourcesRequired', 'fill', 'from', 'id', 'keyPoints', 'keySplines', 'keyTimes', 'max', 'min', 'onbegin', 'onend', 'onload', 'onrepeat', 'origin', 'path', 'repeatCount', 'repeatDur', 'requiredExtensions', 'requiredFeatures', 'restart', 'rotate', 'systemLanguage', 'to', 'values', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space'],\n    animateTransform: ['accumulate', 'additive', 'attributeName', 'attributeType', 'begin', 'by', 'calcMode', 'dur', 'end', 'externalResourcesRequired', 'fill', 'from', 'id', 'keySplines', 'keyTimes', 'max', 'min', 'onbegin', 'onend', 'onload', 'onrepeat', 'repeatCount', 'repeatDur', 'requiredExtensions', 'requiredFeatures', 'restart', 'systemLanguage', 'to', 'type', 'values', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space'],\n    circle: ['class', 'cx', 'cy', 'externalResourcesRequired', 'id', 'onactivate', 'onclick', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'r', 'requiredExtensions', 'requiredFeatures', 'style', 'systemLanguage', 'transform', 'xml:base', 'xml:lang', 'xml:space'],\n    clipPath: ['class', 'clipPathUnits', 'externalResourcesRequired', 'id', 'requiredExtensions', 'requiredFeatures', 'style', 'systemLanguage', 'transform', 'xml:base', 'xml:lang', 'xml:space'],\n    'color-profile': ['id', 'local', 'name', 'rendering-intent', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space'],\n    cursor: ['externalResourcesRequired', 'id', 'requiredExtensions', 'requiredFeatures', 'systemLanguage', 'x', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    defs: ['class', 'externalResourcesRequired', 'id', 'onactivate', 'onclick', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'requiredExtensions', 'requiredFeatures', 'style', 'systemLanguage', 'transform', 'xml:base', 'xml:lang', 'xml:space'],\n    desc: ['class', 'id', 'style', 'xml:base', 'xml:lang', 'xml:space'],\n    ellipse: ['class', 'cx', 'cy', 'externalResourcesRequired', 'id', 'onactivate', 'onclick', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'requiredExtensions', 'requiredFeatures', 'rx', 'ry', 'style', 'systemLanguage', 'transform', 'xml:base', 'xml:lang', 'xml:space'],\n    feBlend: ['class', 'height', 'id', 'in', 'in2', 'mode', 'result', 'style', 'width', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    feColorMatrix: ['class', 'height', 'id', 'in', 'result', 'style', 'type', 'values', 'width', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    feComponentTransfer: ['class', 'height', 'id', 'in', 'result', 'style', 'width', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    feComposite: ['class', 'height', 'id', 'in', 'in2', 'k1', 'k2', 'k3', 'k4', 'operator', 'result', 'style', 'width', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    feConvolveMatrix: ['bias', 'class', 'divisor', 'edgeMode', 'height', 'id', 'in', 'kernelMatrix', 'kernelUnitLength', 'order', 'preserveAlpha', 'result', 'style', 'targetX', 'targetY', 'width', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    feDiffuseLighting: ['class', 'diffuseConstant', 'height', 'id', 'in', 'kernelUnitLength', 'result', 'style', 'surfaceScale', 'width', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    feDisplacementMap: ['class', 'height', 'id', 'in', 'in2', 'result', 'scale', 'style', 'width', 'x', 'xChannelSelector', 'xml:base', 'xml:lang', 'xml:space', 'y', 'yChannelSelector'],\n    feDistantLight: ['azimuth', 'elevation', 'id', 'xml:base', 'xml:lang', 'xml:space'],\n    feFlood: ['class', 'height', 'id', 'result', 'style', 'width', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    feFuncA: ['amplitude', 'exponent', 'id', 'intercept', 'offset', 'slope', 'tableValues', 'type', 'xml:base', 'xml:lang', 'xml:space'],\n    feFuncB: ['amplitude', 'exponent', 'id', 'intercept', 'offset', 'slope', 'tableValues', 'type', 'xml:base', 'xml:lang', 'xml:space'],\n    feFuncG: ['amplitude', 'exponent', 'id', 'intercept', 'offset', 'slope', 'tableValues', 'type', 'xml:base', 'xml:lang', 'xml:space'],\n    feFuncR: ['amplitude', 'exponent', 'id', 'intercept', 'offset', 'slope', 'tableValues', 'type', 'xml:base', 'xml:lang', 'xml:space'],\n    feGaussianBlur: ['class', 'height', 'id', 'in', 'result', 'stdDeviation', 'style', 'width', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    feImage: ['class', 'externalResourcesRequired', 'height', 'id', 'preserveAspectRatio', 'result', 'style', 'width', 'x', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    feMerge: ['class', 'height', 'id', 'result', 'style', 'width', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    feMergeNode: ['id', 'xml:base', 'xml:lang', 'xml:space'],\n    feMorphology: ['class', 'height', 'id', 'in', 'operator', 'radius', 'result', 'style', 'width', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    feOffset: ['class', 'dx', 'dy', 'height', 'id', 'in', 'result', 'style', 'width', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    fePointLight: ['id', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y', 'z'],\n    feSpecularLighting: ['class', 'height', 'id', 'in', 'kernelUnitLength', 'result', 'specularConstant', 'specularExponent', 'style', 'surfaceScale', 'width', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    feSpotLight: ['id', 'limitingConeAngle', 'pointsAtX', 'pointsAtY', 'pointsAtZ', 'specularExponent', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y', 'z'],\n    feTile: ['class', 'height', 'id', 'in', 'result', 'style', 'width', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    feTurbulence: ['baseFrequency', 'class', 'height', 'id', 'numOctaves', 'result', 'seed', 'stitchTiles', 'style', 'type', 'width', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    filter: ['class', 'externalResourcesRequired', 'filterRes', 'filterUnits', 'height', 'id', 'primitiveUnits', 'style', 'width', 'x', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    font: ['class', 'externalResourcesRequired', 'horiz-adv-x', 'horiz-origin-x', 'horiz-origin-y', 'id', 'style', 'vert-adv-y', 'vert-origin-x', 'vert-origin-y', 'xml:base', 'xml:lang', 'xml:space'],\n    'font-face': ['accent-height', 'alphabetic', 'ascent', 'bbox', 'cap-height', 'descent', 'font-family', 'font-size', 'font-stretch', 'font-style', 'font-variant', 'font-weight', 'hanging', 'id', 'ideographic', 'mathematical', 'overline-position', 'overline-thickness', 'panose-1', 'slope', 'stemh', 'stemv', 'strikethrough-position', 'strikethrough-thickness', 'underline-position', 'underline-thickness', 'unicode-range', 'units-per-em', 'v-alphabetic', 'v-hanging', 'v-ideographic', 'v-mathematical', 'widths', 'x-height', 'xml:base', 'xml:lang', 'xml:space'],\n    'font-face-format': ['id', 'string', 'xml:base', 'xml:lang', 'xml:space'],\n    'font-face-name': ['id', 'name', 'xml:base', 'xml:lang', 'xml:space'],\n    'font-face-src': ['id', 'xml:base', 'xml:lang', 'xml:space'],\n    'font-face-uri': ['id', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space'],\n    foreignObject: ['class', 'externalResourcesRequired', 'height', 'id', 'onactivate', 'onclick', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'requiredExtensions', 'requiredFeatures', 'style', 'systemLanguage', 'transform', 'width', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    g: ['class', 'externalResourcesRequired', 'id', 'onactivate', 'onclick', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'requiredExtensions', 'requiredFeatures', 'style', 'systemLanguage', 'transform', 'xml:base', 'xml:lang', 'xml:space'],\n    glyph: ['arabic-form', 'class', 'd', 'glyph-name', 'horiz-adv-x', 'id', 'lang', 'orientation', 'style', 'unicode', 'vert-adv-y', 'vert-origin-x', 'vert-origin-y', 'xml:base', 'xml:lang', 'xml:space'],\n    glyphRef: ['class', 'dx', 'dy', 'format', 'glyphRef', 'id', 'style', 'x', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    hkern: ['g1', 'g2', 'id', 'k', 'u1', 'u2', 'xml:base', 'xml:lang', 'xml:space'],\n    image: ['class', 'externalResourcesRequired', 'height', 'id', 'onactivate', 'onclick', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'preserveAspectRatio', 'requiredExtensions', 'requiredFeatures', 'style', 'systemLanguage', 'transform', 'width', 'x', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    line: ['class', 'externalResourcesRequired', 'id', 'onactivate', 'onclick', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'requiredExtensions', 'requiredFeatures', 'style', 'systemLanguage', 'transform', 'x1', 'x2', 'xml:base', 'xml:lang', 'xml:space', 'y1', 'y2'],\n    linearGradient: ['class', 'externalResourcesRequired', 'gradientTransform', 'gradientUnits', 'id', 'spreadMethod', 'style', 'x1', 'x2', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space', 'y1', 'y2'],\n    marker: ['class', 'externalResourcesRequired', 'id', 'markerHeight', 'markerUnits', 'markerWidth', 'orient', 'preserveAspectRatio', 'refX', 'refY', 'style', 'viewBox', 'xml:base', 'xml:lang', 'xml:space'],\n    mask: ['class', 'externalResourcesRequired', 'height', 'id', 'maskContentUnits', 'maskUnits', 'requiredExtensions', 'requiredFeatures', 'style', 'systemLanguage', 'width', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    metadata: ['id', 'xml:base', 'xml:lang', 'xml:space'],\n    'missing-glyph': ['class', 'd', 'horiz-adv-x', 'id', 'style', 'vert-adv-y', 'vert-origin-x', 'vert-origin-y', 'xml:base', 'xml:lang', 'xml:space'],\n    mpath: ['externalResourcesRequired', 'id', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space'],\n    path: ['class', 'd', 'externalResourcesRequired', 'id', 'onactivate', 'onclick', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'pathLength', 'requiredExtensions', 'requiredFeatures', 'style', 'systemLanguage', 'transform', 'xml:base', 'xml:lang', 'xml:space'],\n    pattern: ['class', 'externalResourcesRequired', 'height', 'id', 'patternContentUnits', 'patternTransform', 'patternUnits', 'preserveAspectRatio', 'requiredExtensions', 'requiredFeatures', 'style', 'systemLanguage', 'viewBox', 'width', 'x', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    polygon: ['class', 'externalResourcesRequired', 'id', 'onactivate', 'onclick', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'points', 'requiredExtensions', 'requiredFeatures', 'style', 'systemLanguage', 'transform', 'xml:base', 'xml:lang', 'xml:space'],\n    polyline: ['class', 'externalResourcesRequired', 'id', 'onactivate', 'onclick', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'points', 'requiredExtensions', 'requiredFeatures', 'style', 'systemLanguage', 'transform', 'xml:base', 'xml:lang', 'xml:space'],\n    radialGradient: ['class', 'cx', 'cy', 'externalResourcesRequired', 'fx', 'fy', 'gradientTransform', 'gradientUnits', 'id', 'r', 'spreadMethod', 'style', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space'],\n    rect: ['class', 'externalResourcesRequired', 'height', 'id', 'onactivate', 'onclick', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'requiredExtensions', 'requiredFeatures', 'rx', 'ry', 'style', 'systemLanguage', 'transform', 'width', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    script: ['externalResourcesRequired', 'id', 'type', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space'],\n    set: ['attributeName', 'attributeType', 'begin', 'dur', 'end', 'externalResourcesRequired', 'fill', 'id', 'max', 'min', 'onbegin', 'onend', 'onload', 'onrepeat', 'repeatCount', 'repeatDur', 'requiredExtensions', 'requiredFeatures', 'restart', 'systemLanguage', 'to', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space'],\n    stop: ['class', 'id', 'offset', 'style', 'xml:base', 'xml:lang', 'xml:space'],\n    style: ['id', 'media', 'title', 'type', 'xml:base', 'xml:lang', 'xml:space'],\n    svg: ['baseProfile', 'class', 'contentScriptType', 'contentStyleType', 'externalResourcesRequired', 'height', 'id', 'onabort', 'onactivate', 'onclick', 'onerror', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'onresize', 'onscroll', 'onunload', 'onzoom', 'preserveAspectRatio', 'requiredExtensions', 'requiredFeatures', 'style', 'systemLanguage', 'version', 'viewBox', 'width', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y', 'zoomAndPan'],\n    switch: ['class', 'externalResourcesRequired', 'id', 'onactivate', 'onclick', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'requiredExtensions', 'requiredFeatures', 'style', 'systemLanguage', 'transform', 'xml:base', 'xml:lang', 'xml:space'],\n    symbol: ['class', 'externalResourcesRequired', 'id', 'onactivate', 'onclick', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'preserveAspectRatio', 'style', 'viewBox', 'xml:base', 'xml:lang', 'xml:space'],\n    text: ['class', 'dx', 'dy', 'externalResourcesRequired', 'id', 'lengthAdjust', 'onactivate', 'onclick', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'requiredExtensions', 'requiredFeatures', 'rotate', 'style', 'systemLanguage', 'textLength', 'transform', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    textPath: ['class', 'externalResourcesRequired', 'id', 'lengthAdjust', 'method', 'onactivate', 'onclick', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'requiredExtensions', 'requiredFeatures', 'spacing', 'startOffset', 'style', 'systemLanguage', 'textLength', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space'],\n    title: ['class', 'id', 'style', 'xml:base', 'xml:lang', 'xml:space'],\n    tref: ['class', 'dx', 'dy', 'externalResourcesRequired', 'id', 'lengthAdjust', 'onactivate', 'onclick', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'requiredExtensions', 'requiredFeatures', 'rotate', 'style', 'systemLanguage', 'textLength', 'x', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    tspan: ['class', 'dx', 'dy', 'externalResourcesRequired', 'id', 'lengthAdjust', 'onactivate', 'onclick', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'requiredExtensions', 'requiredFeatures', 'rotate', 'style', 'systemLanguage', 'textLength', 'x', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    use: ['class', 'externalResourcesRequired', 'height', 'id', 'onactivate', 'onclick', 'onfocusin', 'onfocusout', 'onload', 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'requiredExtensions', 'requiredFeatures', 'style', 'systemLanguage', 'transform', 'width', 'x', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xml:lang', 'xml:space', 'y'],\n    view: ['externalResourcesRequired', 'id', 'preserveAspectRatio', 'viewBox', 'viewTarget', 'xml:base', 'xml:lang', 'xml:space', 'zoomAndPan'],\n    vkern: ['g1', 'g2', 'id', 'k', 'u1', 'u2', 'xml:base', 'xml:lang', 'xml:space']\n  };\n\n\n  svgPresentationElements = {\n    'a': true,\n    'altGlyph': true,\n    'animate': true,\n    'animateColor': true,\n    'circle': true,\n    'clipPath': true,\n    'defs': true,\n    'ellipse': true,\n    'feBlend': true,\n    'feColorMatrix': true,\n    'feComponentTransfer': true,\n    'feComposite': true,\n    'feConvolveMatrix': true,\n    'feDiffuseLighting': true,\n    'feDisplacementMap': true,\n    'feFlood': true,\n    'feGaussianBlur': true,\n    'feImage': true,\n    'feMerge': true,\n    'feMorphology': true,\n    'feOffset': true,\n    'feSpecularLighting': true,\n    'feTile': true,\n    'feTurbulence': true,\n    'filter': true,\n    'font': true,\n    'foreignObject': true,\n    'g': true,\n    'glyph': true,\n    'glyphRef': true,\n    'image': true,\n    'line': true,\n    'linearGradient': true,\n    'marker': true,\n    'mask': true,\n    'missing-glyph': true,\n    'path': true,\n    'pattern': true,\n    'polygon': true,\n    'polyline': true,\n    'radialGradient': true,\n    'rect': true,\n    'stop': true,\n    'svg': true,\n    'switch': true,\n    'symbol': true,\n    'text': true,\n    'textPath': true,\n    'tref': true,\n    'tspan': true,\n    'use': true\n  };\n\n  svgPresentationAttributes = {\n    'alignment-baseline': true,\n    'baseline-shift': true,\n    'clip-path': true,\n    'clip-rule': true,\n    'clip': true,\n    'color-interpolation-filters': true,\n    'color-interpolation': true,\n    'color-profile': true,\n    'color-rendering': true,\n    'color': true,\n    'cursor': true,\n    'direction': true,\n    'display': true,\n    'dominant-baseline': true,\n    'enable-background': true,\n    'fill-opacity': true,\n    'fill-rule': true,\n    'fill': true,\n    'filter': true,\n    'flood-color': true,\n    'flood-opacity': true,\n    'font-family': true,\n    'font-size-adjust': true,\n    'font-size': true,\n    'font-stretch': true,\n    'font-style': true,\n    'font-variant': true,\n    'font-weight': true,\n    'glyph-orientation-horizontal': true,\n    'glyph-orientation-vertical': true,\n    'image-rendering': true,\n    'kerning': true,\n    'letter-spacing': true,\n    'lighting-color': true,\n    'marker-end': true,\n    'marker-mid': true,\n    'marker-start': true,\n    'mask': true,\n    'opacity': true,\n    'overflow': true,\n    'pointer-events': true,\n    'shape-rendering': true,\n    'stop-color': true,\n    'stop-opacity': true,\n    'stroke-dasharray': true,\n    'stroke-dashoffset': true,\n    'stroke-linecap': true,\n    'stroke-linejoin': true,\n    'stroke-miterlimit': true,\n    'stroke-opacity': true,\n    'stroke-width': true,\n    'stroke': true,\n    'text-anchor': true,\n    'text-decoration': true,\n    'text-rendering': true,\n    'unicode-bidi': true,\n    'visibility': true,\n    'word-spacing': true,\n    'writing-mode': true\n  };\n\n  var createElement = function createElement(html) {\n    var div = DOM.createElement('div');\n    div.innerHTML = html;\n    return div.firstChild;\n  };\n\n  svgAnalyzer = function () {\n    function SVGAnalyzer() {\n      \n\n      if (createElement('<svg><altGlyph /></svg>').firstElementChild.nodeName === 'altglyph' && elements.altGlyph) {\n        elements.altglyph = elements.altGlyph;\n        delete elements.altGlyph;\n        elements.altglyphdef = elements.altGlyphDef;\n        delete elements.altGlyphDef;\n        elements.altglyphitem = elements.altGlyphItem;\n        delete elements.altGlyphItem;\n        elements.glyphref = elements.glyphRef;\n        delete elements.glyphRef;\n      }\n    }\n\n    SVGAnalyzer.prototype.isStandardSvgAttribute = function isStandardSvgAttribute(nodeName, attributeName) {\n      return presentationElements[nodeName] && presentationAttributes[attributeName] || elements[nodeName] && elements[nodeName].indexOf(attributeName) !== -1;\n    };\n\n    return SVGAnalyzer;\n  }();\n}\n\nexport var elements = svgElements;\nexport var presentationElements = svgPresentationElements;\nexport var presentationAttributes = svgPresentationAttributes;\nexport var SVGAnalyzer = svgAnalyzer || function () {\n  function _class11() {\n    \n  }\n\n  _class11.prototype.isStandardSvgAttribute = function isStandardSvgAttribute() {\n    return false;\n  };\n\n  return _class11;\n}();\n\nexport var ObserverLocator = (_temp = _class12 = function () {\n  function ObserverLocator(taskQueue, eventManager, dirtyChecker, svgAnalyzer, parser) {\n    \n\n    this.taskQueue = taskQueue;\n    this.eventManager = eventManager;\n    this.dirtyChecker = dirtyChecker;\n    this.svgAnalyzer = svgAnalyzer;\n    this.parser = parser;\n\n    this.adapters = [];\n    this.logger = LogManager.getLogger('observer-locator');\n  }\n\n  ObserverLocator.prototype.getObserver = function getObserver(obj, propertyName) {\n    var observersLookup = obj.__observers__;\n    var observer = void 0;\n\n    if (observersLookup && propertyName in observersLookup) {\n      return observersLookup[propertyName];\n    }\n\n    observer = this.createPropertyObserver(obj, propertyName);\n\n    if (!observer.doNotCache) {\n      if (observersLookup === undefined) {\n        observersLookup = this.getOrCreateObserversLookup(obj);\n      }\n\n      observersLookup[propertyName] = observer;\n    }\n\n    return observer;\n  };\n\n  ObserverLocator.prototype.getOrCreateObserversLookup = function getOrCreateObserversLookup(obj) {\n    return obj.__observers__ || this.createObserversLookup(obj);\n  };\n\n  ObserverLocator.prototype.createObserversLookup = function createObserversLookup(obj) {\n    var value = {};\n\n    if (!Reflect.defineProperty(obj, '__observers__', {\n      enumerable: false,\n      configurable: false,\n      writable: false,\n      value: value\n    })) {\n      this.logger.warn('Cannot add observers to object', obj);\n    }\n\n    return value;\n  };\n\n  ObserverLocator.prototype.addAdapter = function addAdapter(adapter) {\n    this.adapters.push(adapter);\n  };\n\n  ObserverLocator.prototype.getAdapterObserver = function getAdapterObserver(obj, propertyName, descriptor) {\n    for (var i = 0, ii = this.adapters.length; i < ii; i++) {\n      var adapter = this.adapters[i];\n      var observer = adapter.getObserver(obj, propertyName, descriptor);\n      if (observer) {\n        return observer;\n      }\n    }\n    return null;\n  };\n\n  ObserverLocator.prototype.createPropertyObserver = function createPropertyObserver(obj, propertyName) {\n    var descriptor = void 0;\n    var handler = void 0;\n    var xlinkResult = void 0;\n\n    if (!(obj instanceof Object)) {\n      return new PrimitiveObserver(obj, propertyName);\n    }\n\n    if (obj instanceof DOM.Element) {\n      if (propertyName === 'class') {\n        return new ClassObserver(obj);\n      }\n      if (propertyName === 'style' || propertyName === 'css') {\n        return new StyleObserver(obj, propertyName);\n      }\n      handler = this.eventManager.getElementHandler(obj, propertyName);\n      if (propertyName === 'value' && obj.tagName.toLowerCase() === 'select') {\n        return new SelectValueObserver(obj, handler, this);\n      }\n      if (propertyName === 'checked' && obj.tagName.toLowerCase() === 'input') {\n        return new CheckedObserver(obj, handler, this);\n      }\n      if (handler) {\n        return new ValueAttributeObserver(obj, propertyName, handler);\n      }\n      xlinkResult = /^xlink:(.+)$/.exec(propertyName);\n      if (xlinkResult) {\n        return new XLinkAttributeObserver(obj, propertyName, xlinkResult[1]);\n      }\n      if (propertyName === 'role' && (obj instanceof DOM.Element || obj instanceof DOM.SVGElement) || /^\\w+:|^data-|^aria-/.test(propertyName) || obj instanceof DOM.SVGElement && this.svgAnalyzer.isStandardSvgAttribute(obj.nodeName, propertyName)) {\n        return new DataAttributeObserver(obj, propertyName);\n      }\n    }\n\n    descriptor = Object.getPropertyDescriptor(obj, propertyName);\n\n    if (hasDeclaredDependencies(descriptor)) {\n      return createComputedObserver(obj, propertyName, descriptor, this);\n    }\n\n    if (descriptor) {\n      var existingGetterOrSetter = descriptor.get || descriptor.set;\n      if (existingGetterOrSetter) {\n        if (existingGetterOrSetter.getObserver) {\n          return existingGetterOrSetter.getObserver(obj);\n        }\n\n        var adapterObserver = this.getAdapterObserver(obj, propertyName, descriptor);\n        if (adapterObserver) {\n          return adapterObserver;\n        }\n        return new DirtyCheckProperty(this.dirtyChecker, obj, propertyName);\n      }\n    }\n\n    if (obj instanceof Array) {\n      if (propertyName === 'length') {\n        return this.getArrayObserver(obj).getLengthObserver();\n      }\n\n      return new DirtyCheckProperty(this.dirtyChecker, obj, propertyName);\n    } else if (obj instanceof Map) {\n      if (propertyName === 'size') {\n        return this.getMapObserver(obj).getLengthObserver();\n      }\n\n      return new DirtyCheckProperty(this.dirtyChecker, obj, propertyName);\n    } else if (obj instanceof Set) {\n      if (propertyName === 'size') {\n        return this.getSetObserver(obj).getLengthObserver();\n      }\n\n      return new DirtyCheckProperty(this.dirtyChecker, obj, propertyName);\n    }\n\n    return new SetterObserver(this.taskQueue, obj, propertyName);\n  };\n\n  ObserverLocator.prototype.getAccessor = function getAccessor(obj, propertyName) {\n    if (obj instanceof DOM.Element) {\n      if (propertyName === 'class' || propertyName === 'style' || propertyName === 'css' || propertyName === 'value' && (obj.tagName.toLowerCase() === 'input' || obj.tagName.toLowerCase() === 'select') || propertyName === 'checked' && obj.tagName.toLowerCase() === 'input' || propertyName === 'model' && obj.tagName.toLowerCase() === 'input' || /^xlink:.+$/.exec(propertyName)) {\n        return this.getObserver(obj, propertyName);\n      }\n      if (/^\\w+:|^data-|^aria-/.test(propertyName) || obj instanceof DOM.SVGElement && this.svgAnalyzer.isStandardSvgAttribute(obj.nodeName, propertyName) || obj.tagName.toLowerCase() === 'img' && propertyName === 'src' || obj.tagName.toLowerCase() === 'a' && propertyName === 'href') {\n        return dataAttributeAccessor;\n      }\n    }\n    return propertyAccessor;\n  };\n\n  ObserverLocator.prototype.getArrayObserver = function getArrayObserver(array) {\n    return _getArrayObserver(this.taskQueue, array);\n  };\n\n  ObserverLocator.prototype.getMapObserver = function getMapObserver(map) {\n    return _getMapObserver(this.taskQueue, map);\n  };\n\n  ObserverLocator.prototype.getSetObserver = function getSetObserver(set) {\n    return _getSetObserver(this.taskQueue, set);\n  };\n\n  return ObserverLocator;\n}(), _class12.inject = [TaskQueue, EventManager, DirtyChecker, SVGAnalyzer, Parser], _temp);\n\nexport var ObjectObservationAdapter = function () {\n  function ObjectObservationAdapter() {\n    \n  }\n\n  ObjectObservationAdapter.prototype.getObserver = function getObserver(object, propertyName, descriptor) {\n    throw new Error('BindingAdapters must implement getObserver(object, propertyName).');\n  };\n\n  return ObjectObservationAdapter;\n}();\n\nexport var BindingExpression = function () {\n  function BindingExpression(observerLocator, targetProperty, sourceExpression, mode, lookupFunctions, attribute) {\n    \n\n    this.observerLocator = observerLocator;\n    this.targetProperty = targetProperty;\n    this.sourceExpression = sourceExpression;\n    this.mode = mode;\n    this.lookupFunctions = lookupFunctions;\n    this.attribute = attribute;\n    this.discrete = false;\n  }\n\n  BindingExpression.prototype.createBinding = function createBinding(target) {\n    return new Binding(this.observerLocator, this.sourceExpression, target, this.targetProperty, this.mode, this.lookupFunctions);\n  };\n\n  return BindingExpression;\n}();\n\nexport var Binding = (_dec10 = connectable(), _dec10(_class13 = function () {\n  function Binding(observerLocator, sourceExpression, target, targetProperty, mode, lookupFunctions) {\n    \n\n    this.observerLocator = observerLocator;\n    this.sourceExpression = sourceExpression;\n    this.target = target;\n    this.targetProperty = targetProperty;\n    this.mode = mode;\n    this.lookupFunctions = lookupFunctions;\n  }\n\n  Binding.prototype.updateTarget = function updateTarget(value) {\n    this.targetObserver.setValue(value, this.target, this.targetProperty);\n  };\n\n  Binding.prototype.updateSource = function updateSource(value) {\n    this.sourceExpression.assign(this.source, value, this.lookupFunctions);\n  };\n\n  Binding.prototype.call = function call(context, newValue, oldValue) {\n    if (!this.isBound) {\n      return;\n    }\n    if (context === sourceContext) {\n      oldValue = this.targetObserver.getValue(this.target, this.targetProperty);\n      newValue = this.sourceExpression.evaluate(this.source, this.lookupFunctions);\n      if (newValue !== oldValue) {\n        this.updateTarget(newValue);\n      }\n      if (this.mode !== bindingMode.oneTime) {\n        this._version++;\n        this.sourceExpression.connect(this, this.source);\n        this.unobserve(false);\n      }\n      return;\n    }\n    if (context === targetContext) {\n      if (newValue !== this.sourceExpression.evaluate(this.source, this.lookupFunctions)) {\n        this.updateSource(newValue);\n      }\n      return;\n    }\n    throw new Error('Unexpected call context ' + context);\n  };\n\n  Binding.prototype.bind = function bind(source) {\n    if (this.isBound) {\n      if (this.source === source) {\n        return;\n      }\n      this.unbind();\n    }\n    this.isBound = true;\n    this.source = source;\n\n    if (this.sourceExpression.bind) {\n      this.sourceExpression.bind(this, source, this.lookupFunctions);\n    }\n\n    var mode = this.mode;\n    if (!this.targetObserver) {\n      var method = mode === bindingMode.twoWay || mode === bindingMode.fromView ? 'getObserver' : 'getAccessor';\n      this.targetObserver = this.observerLocator[method](this.target, this.targetProperty);\n    }\n\n    if ('bind' in this.targetObserver) {\n      this.targetObserver.bind();\n    }\n    if (this.mode !== bindingMode.fromView) {\n      var value = this.sourceExpression.evaluate(source, this.lookupFunctions);\n      this.updateTarget(value);\n    }\n\n    if (mode === bindingMode.oneTime) {\n      return;\n    } else if (mode === bindingMode.toView) {\n      enqueueBindingConnect(this);\n    } else if (mode === bindingMode.twoWay) {\n      this.sourceExpression.connect(this, source);\n      this.targetObserver.subscribe(targetContext, this);\n    } else if (mode === bindingMode.fromView) {\n      this.targetObserver.subscribe(targetContext, this);\n    }\n  };\n\n  Binding.prototype.unbind = function unbind() {\n    if (!this.isBound) {\n      return;\n    }\n    this.isBound = false;\n    if (this.sourceExpression.unbind) {\n      this.sourceExpression.unbind(this, this.source);\n    }\n    this.source = null;\n    if ('unbind' in this.targetObserver) {\n      this.targetObserver.unbind();\n    }\n    if (this.targetObserver.unsubscribe) {\n      this.targetObserver.unsubscribe(targetContext, this);\n    }\n    this.unobserve(true);\n  };\n\n  Binding.prototype.connect = function connect(evaluate) {\n    if (!this.isBound) {\n      return;\n    }\n    if (evaluate) {\n      var value = this.sourceExpression.evaluate(this.source, this.lookupFunctions);\n      this.updateTarget(value);\n    }\n    this.sourceExpression.connect(this, this.source);\n  };\n\n  return Binding;\n}()) || _class13);\n\nexport var CallExpression = function () {\n  function CallExpression(observerLocator, targetProperty, sourceExpression, lookupFunctions) {\n    \n\n    this.observerLocator = observerLocator;\n    this.targetProperty = targetProperty;\n    this.sourceExpression = sourceExpression;\n    this.lookupFunctions = lookupFunctions;\n  }\n\n  CallExpression.prototype.createBinding = function createBinding(target) {\n    return new Call(this.observerLocator, this.sourceExpression, target, this.targetProperty, this.lookupFunctions);\n  };\n\n  return CallExpression;\n}();\n\nexport var Call = function () {\n  function Call(observerLocator, sourceExpression, target, targetProperty, lookupFunctions) {\n    \n\n    this.sourceExpression = sourceExpression;\n    this.target = target;\n    this.targetProperty = observerLocator.getObserver(target, targetProperty);\n    this.lookupFunctions = lookupFunctions;\n  }\n\n  Call.prototype.callSource = function callSource($event) {\n    var overrideContext = this.source.overrideContext;\n    Object.assign(overrideContext, $event);\n    overrideContext.$event = $event;\n    var mustEvaluate = true;\n    var result = this.sourceExpression.evaluate(this.source, this.lookupFunctions, mustEvaluate);\n    delete overrideContext.$event;\n    for (var prop in $event) {\n      delete overrideContext[prop];\n    }\n    return result;\n  };\n\n  Call.prototype.bind = function bind(source) {\n    var _this26 = this;\n\n    if (this.isBound) {\n      if (this.source === source) {\n        return;\n      }\n      this.unbind();\n    }\n    this.isBound = true;\n    this.source = source;\n\n    if (this.sourceExpression.bind) {\n      this.sourceExpression.bind(this, source, this.lookupFunctions);\n    }\n    this.targetProperty.setValue(function ($event) {\n      return _this26.callSource($event);\n    });\n  };\n\n  Call.prototype.unbind = function unbind() {\n    if (!this.isBound) {\n      return;\n    }\n    this.isBound = false;\n    if (this.sourceExpression.unbind) {\n      this.sourceExpression.unbind(this, this.source);\n    }\n    this.source = null;\n    this.targetProperty.setValue(null);\n  };\n\n  return Call;\n}();\n\nexport var ValueConverterResource = function () {\n  function ValueConverterResource(name) {\n    \n\n    this.name = name;\n  }\n\n  ValueConverterResource.convention = function convention(name) {\n    if (name.endsWith('ValueConverter')) {\n      return new ValueConverterResource(camelCase(name.substring(0, name.length - 14)));\n    }\n  };\n\n  ValueConverterResource.prototype.initialize = function initialize(container, target) {\n    this.instance = container.get(target);\n  };\n\n  ValueConverterResource.prototype.register = function register(registry, name) {\n    registry.registerValueConverter(name || this.name, this.instance);\n  };\n\n  ValueConverterResource.prototype.load = function load(container, target) {};\n\n  return ValueConverterResource;\n}();\n\nexport function valueConverter(nameOrTarget) {\n  if (nameOrTarget === undefined || typeof nameOrTarget === 'string') {\n    return function (target) {\n      metadata.define(metadata.resource, new ValueConverterResource(nameOrTarget), target);\n    };\n  }\n\n  metadata.define(metadata.resource, new ValueConverterResource(), nameOrTarget);\n}\n\nexport var BindingBehaviorResource = function () {\n  function BindingBehaviorResource(name) {\n    \n\n    this.name = name;\n  }\n\n  BindingBehaviorResource.convention = function convention(name) {\n    if (name.endsWith('BindingBehavior')) {\n      return new BindingBehaviorResource(camelCase(name.substring(0, name.length - 15)));\n    }\n  };\n\n  BindingBehaviorResource.prototype.initialize = function initialize(container, target) {\n    this.instance = container.get(target);\n  };\n\n  BindingBehaviorResource.prototype.register = function register(registry, name) {\n    registry.registerBindingBehavior(name || this.name, this.instance);\n  };\n\n  BindingBehaviorResource.prototype.load = function load(container, target) {};\n\n  return BindingBehaviorResource;\n}();\n\nexport function bindingBehavior(nameOrTarget) {\n  if (nameOrTarget === undefined || typeof nameOrTarget === 'string') {\n    return function (target) {\n      metadata.define(metadata.resource, new BindingBehaviorResource(nameOrTarget), target);\n    };\n  }\n\n  metadata.define(metadata.resource, new BindingBehaviorResource(), nameOrTarget);\n}\n\nexport var ListenerExpression = function () {\n  function ListenerExpression(eventManager, targetEvent, sourceExpression, delegationStrategy, preventDefault, lookupFunctions) {\n    \n\n    this.eventManager = eventManager;\n    this.targetEvent = targetEvent;\n    this.sourceExpression = sourceExpression;\n    this.delegationStrategy = delegationStrategy;\n    this.discrete = true;\n    this.preventDefault = preventDefault;\n    this.lookupFunctions = lookupFunctions;\n  }\n\n  ListenerExpression.prototype.createBinding = function createBinding(target) {\n    return new Listener(this.eventManager, this.targetEvent, this.delegationStrategy, this.sourceExpression, target, this.preventDefault, this.lookupFunctions);\n  };\n\n  return ListenerExpression;\n}();\n\nexport var Listener = function () {\n  function Listener(eventManager, targetEvent, delegationStrategy, sourceExpression, target, preventDefault, lookupFunctions) {\n    \n\n    this.eventManager = eventManager;\n    this.targetEvent = targetEvent;\n    this.delegationStrategy = delegationStrategy;\n    this.sourceExpression = sourceExpression;\n    this.target = target;\n    this.preventDefault = preventDefault;\n    this.lookupFunctions = lookupFunctions;\n  }\n\n  Listener.prototype.callSource = function callSource(event) {\n    var overrideContext = this.source.overrideContext;\n    overrideContext.$event = event;\n    var mustEvaluate = true;\n    var result = this.sourceExpression.evaluate(this.source, this.lookupFunctions, mustEvaluate);\n    delete overrideContext.$event;\n    if (result !== true && this.preventDefault) {\n      event.preventDefault();\n    }\n    return result;\n  };\n\n  Listener.prototype.handleEvent = function handleEvent(event) {\n    this.callSource(event);\n  };\n\n  Listener.prototype.bind = function bind(source) {\n    if (this.isBound) {\n      if (this.source === source) {\n        return;\n      }\n      this.unbind();\n    }\n    this.isBound = true;\n    this.source = source;\n\n    if (this.sourceExpression.bind) {\n      this.sourceExpression.bind(this, source, this.lookupFunctions);\n    }\n    this._handler = this.eventManager.addEventListener(this.target, this.targetEvent, this, this.delegationStrategy, true);\n  };\n\n  Listener.prototype.unbind = function unbind() {\n    if (!this.isBound) {\n      return;\n    }\n    this.isBound = false;\n    if (this.sourceExpression.unbind) {\n      this.sourceExpression.unbind(this, this.source);\n    }\n    this.source = null;\n    this._handler.dispose();\n    this._handler = null;\n  };\n\n  return Listener;\n}();\n\nfunction getAU(element) {\n  var au = element.au;\n\n  if (au === undefined) {\n    throw new Error('No Aurelia APIs are defined for the element: \"' + element.tagName + '\".');\n  }\n\n  return au;\n}\n\nexport var NameExpression = function () {\n  function NameExpression(sourceExpression, apiName, lookupFunctions) {\n    \n\n    this.sourceExpression = sourceExpression;\n    this.apiName = apiName;\n    this.lookupFunctions = lookupFunctions;\n    this.discrete = true;\n  }\n\n  NameExpression.prototype.createBinding = function createBinding(target) {\n    return new NameBinder(this.sourceExpression, NameExpression.locateAPI(target, this.apiName), this.lookupFunctions);\n  };\n\n  NameExpression.locateAPI = function locateAPI(element, apiName) {\n    switch (apiName) {\n      case 'element':\n        return element;\n      case 'controller':\n        return getAU(element).controller;\n      case 'view-model':\n        return getAU(element).controller.viewModel;\n      case 'view':\n        return getAU(element).controller.view;\n      default:\n        var target = getAU(element)[apiName];\n\n        if (target === undefined) {\n          throw new Error('Attempted to reference \"' + apiName + '\", but it was not found amongst the target\\'s API.');\n        }\n\n        return target.viewModel;\n    }\n  };\n\n  return NameExpression;\n}();\n\nvar NameBinder = function () {\n  function NameBinder(sourceExpression, target, lookupFunctions) {\n    \n\n    this.sourceExpression = sourceExpression;\n    this.target = target;\n    this.lookupFunctions = lookupFunctions;\n  }\n\n  NameBinder.prototype.bind = function bind(source) {\n    if (this.isBound) {\n      if (this.source === source) {\n        return;\n      }\n      this.unbind();\n    }\n    this.isBound = true;\n    this.source = source;\n    if (this.sourceExpression.bind) {\n      this.sourceExpression.bind(this, source, this.lookupFunctions);\n    }\n    this.sourceExpression.assign(this.source, this.target, this.lookupFunctions);\n  };\n\n  NameBinder.prototype.unbind = function unbind() {\n    if (!this.isBound) {\n      return;\n    }\n    this.isBound = false;\n    if (this.sourceExpression.evaluate(this.source, this.lookupFunctions) === this.target) {\n      this.sourceExpression.assign(this.source, null, this.lookupFunctions);\n    }\n    if (this.sourceExpression.unbind) {\n      this.sourceExpression.unbind(this, this.source);\n    }\n    this.source = null;\n  };\n\n  return NameBinder;\n}();\n\nvar LookupFunctions = {\n  bindingBehaviors: function bindingBehaviors(name) {\n    return null;\n  },\n  valueConverters: function valueConverters(name) {\n    return null;\n  }\n};\n\nexport var BindingEngine = (_temp2 = _class14 = function () {\n  function BindingEngine(observerLocator, parser) {\n    \n\n    this.observerLocator = observerLocator;\n    this.parser = parser;\n  }\n\n  BindingEngine.prototype.createBindingExpression = function createBindingExpression(targetProperty, sourceExpression) {\n    var mode = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : bindingMode.toView;\n    var lookupFunctions = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : LookupFunctions;\n\n    return new BindingExpression(this.observerLocator, targetProperty, this.parser.parse(sourceExpression), mode, lookupFunctions);\n  };\n\n  BindingEngine.prototype.propertyObserver = function propertyObserver(obj, propertyName) {\n    var _this27 = this;\n\n    return {\n      subscribe: function subscribe(callback) {\n        var observer = _this27.observerLocator.getObserver(obj, propertyName);\n        observer.subscribe(callback);\n        return {\n          dispose: function dispose() {\n            return observer.unsubscribe(callback);\n          }\n        };\n      }\n    };\n  };\n\n  BindingEngine.prototype.collectionObserver = function collectionObserver(collection) {\n    var _this28 = this;\n\n    return {\n      subscribe: function subscribe(callback) {\n        var observer = void 0;\n        if (collection instanceof Array) {\n          observer = _this28.observerLocator.getArrayObserver(collection);\n        } else if (collection instanceof Map) {\n          observer = _this28.observerLocator.getMapObserver(collection);\n        } else if (collection instanceof Set) {\n          observer = _this28.observerLocator.getSetObserver(collection);\n        } else {\n          throw new Error('collection must be an instance of Array, Map or Set.');\n        }\n        observer.subscribe(callback);\n        return {\n          dispose: function dispose() {\n            return observer.unsubscribe(callback);\n          }\n        };\n      }\n    };\n  };\n\n  BindingEngine.prototype.expressionObserver = function expressionObserver(bindingContext, expression) {\n    var scope = { bindingContext: bindingContext, overrideContext: createOverrideContext(bindingContext) };\n    return new ExpressionObserver(scope, this.parser.parse(expression), this.observerLocator, LookupFunctions);\n  };\n\n  BindingEngine.prototype.parseExpression = function parseExpression(expression) {\n    return this.parser.parse(expression);\n  };\n\n  BindingEngine.prototype.registerAdapter = function registerAdapter(adapter) {\n    this.observerLocator.addAdapter(adapter);\n  };\n\n  return BindingEngine;\n}(), _class14.inject = [ObserverLocator, Parser], _temp2);\n\nvar setProto = Set.prototype;\n\nfunction _getSetObserver(taskQueue, set) {\n  return ModifySetObserver.for(taskQueue, set);\n}\n\nvar ModifySetObserver = function (_ModifyCollectionObse3) {\n  _inherits(ModifySetObserver, _ModifyCollectionObse3);\n\n  function ModifySetObserver(taskQueue, set) {\n    \n\n    return _possibleConstructorReturn(this, _ModifyCollectionObse3.call(this, taskQueue, set));\n  }\n\n  ModifySetObserver.for = function _for(taskQueue, set) {\n    if (!('__set_observer__' in set)) {\n      Reflect.defineProperty(set, '__set_observer__', {\n        value: ModifySetObserver.create(taskQueue, set),\n        enumerable: false, configurable: false\n      });\n    }\n    return set.__set_observer__;\n  };\n\n  ModifySetObserver.create = function create(taskQueue, set) {\n    var observer = new ModifySetObserver(taskQueue, set);\n\n    var proto = setProto;\n    if (proto.add !== set.add || proto.delete !== set.delete || proto.clear !== set.clear) {\n      proto = {\n        add: set.add,\n        delete: set.delete,\n        clear: set.clear\n      };\n    }\n\n    set.add = function () {\n      var type = 'add';\n      var oldSize = set.size;\n      var methodCallResult = proto.add.apply(set, arguments);\n      var hasValue = set.size === oldSize;\n      if (!hasValue) {\n        observer.addChangeRecord({\n          type: type,\n          object: set,\n          value: Array.from(set).pop()\n        });\n      }\n      return methodCallResult;\n    };\n\n    set.delete = function () {\n      var hasValue = set.has(arguments[0]);\n      var methodCallResult = proto.delete.apply(set, arguments);\n      if (hasValue) {\n        observer.addChangeRecord({\n          type: 'delete',\n          object: set,\n          value: arguments[0]\n        });\n      }\n      return methodCallResult;\n    };\n\n    set.clear = function () {\n      var methodCallResult = proto.clear.apply(set, arguments);\n      observer.addChangeRecord({\n        type: 'clear',\n        object: set\n      });\n      return methodCallResult;\n    };\n\n    return observer;\n  };\n\n  return ModifySetObserver;\n}(ModifyCollectionObserver);\n\nexport function observable(targetOrConfig, key, descriptor) {\n  function deco(target, key, descriptor, config) {\n    var isClassDecorator = key === undefined;\n    if (isClassDecorator) {\n      target = target.prototype;\n      key = typeof config === 'string' ? config : config.name;\n    }\n\n    var innerPropertyName = '_' + key;\n    var innerPropertyDescriptor = {\n      configurable: true,\n      enumerable: false,\n      writable: true\n    };\n\n    var callbackName = config && config.changeHandler || key + 'Changed';\n\n    if (descriptor) {\n      if (typeof descriptor.initializer === 'function') {\n        innerPropertyDescriptor.value = descriptor.initializer();\n      }\n    } else {\n      descriptor = {};\n    }\n\n    if (!('enumerable' in descriptor)) {\n      descriptor.enumerable = true;\n    }\n\n    delete descriptor.value;\n    delete descriptor.writable;\n    delete descriptor.initializer;\n\n    Reflect.defineProperty(target, innerPropertyName, innerPropertyDescriptor);\n\n    descriptor.get = function () {\n      return this[innerPropertyName];\n    };\n    descriptor.set = function (newValue) {\n      var oldValue = this[innerPropertyName];\n      if (newValue === oldValue) {\n        return;\n      }\n\n      this[innerPropertyName] = newValue;\n      Reflect.defineProperty(this, innerPropertyName, { enumerable: false });\n\n      if (this[callbackName]) {\n        this[callbackName](newValue, oldValue, key);\n      }\n    };\n\n    descriptor.get.dependencies = [innerPropertyName];\n\n    if (isClassDecorator) {\n      Reflect.defineProperty(target, key, descriptor);\n    } else {\n      return descriptor;\n    }\n  }\n\n  if (key === undefined) {\n    return function (t, k, d) {\n      return deco(t, k, d, targetOrConfig);\n    };\n  }\n  return deco(targetOrConfig, key, descriptor);\n}\n\nvar signals = {};\n\nexport function connectBindingToSignal(binding, name) {\n  if (!signals.hasOwnProperty(name)) {\n    signals[name] = 0;\n  }\n  binding.observeProperty(signals, name);\n}\n\nexport function signalBindings(name) {\n  if (signals.hasOwnProperty(name)) {\n    signals[name]++;\n  }\n}"],"names":[],"sourceRoot":""}