surrounding the more link\n component.isValidSegDownEl(ev.target)) {\n // our way to simulate a link click for elements that can't be
tags\n // grab before trigger fired in case trigger trashes DOM thru rerendering\n var hasUrlContainer = elementClosest(ev.target, '.fc-event-forced-url');\n var url = hasUrlContainer ? hasUrlContainer.querySelector('a[href]').href : '';\n context.emitter.trigger('eventClick', {\n el: segEl,\n event: new EventApi(component.context, seg.eventRange.def, seg.eventRange.instance),\n jsEvent: ev,\n view: context.viewApi,\n });\n if (url && !ev.defaultPrevented) {\n window.location.href = url;\n }\n }\n };\n _this.destroy = listenBySelector(settings.el, 'click', '.fc-event', // on both fg and bg events\n _this.handleSegClick);\n return _this;\n }\n return EventClicking;\n}(Interaction));\n\n/*\nTriggers events and adds/removes core classNames when the user's pointer\nenters/leaves event-elements of a component.\n*/\nvar EventHovering = /** @class */ (function (_super) {\n __extends(EventHovering, _super);\n function EventHovering(settings) {\n var _this = _super.call(this, settings) || this;\n // for simulating an eventMouseLeave when the event el is destroyed while mouse is over it\n _this.handleEventElRemove = function (el) {\n if (el === _this.currentSegEl) {\n _this.handleSegLeave(null, _this.currentSegEl);\n }\n };\n _this.handleSegEnter = function (ev, segEl) {\n if (getElSeg(segEl)) { // TODO: better way to make sure not hovering over more+ link or its wrapper\n _this.currentSegEl = segEl;\n _this.triggerEvent('eventMouseEnter', ev, segEl);\n }\n };\n _this.handleSegLeave = function (ev, segEl) {\n if (_this.currentSegEl) {\n _this.currentSegEl = null;\n _this.triggerEvent('eventMouseLeave', ev, segEl);\n }\n };\n _this.removeHoverListeners = listenToHoverBySelector(settings.el, '.fc-event', // on both fg and bg events\n _this.handleSegEnter, _this.handleSegLeave);\n return _this;\n }\n EventHovering.prototype.destroy = function () {\n this.removeHoverListeners();\n };\n EventHovering.prototype.triggerEvent = function (publicEvName, ev, segEl) {\n var component = this.component;\n var context = component.context;\n var seg = getElSeg(segEl);\n if (!ev || component.isValidSegDownEl(ev.target)) {\n context.emitter.trigger(publicEvName, {\n el: segEl,\n event: new EventApi(context, seg.eventRange.def, seg.eventRange.instance),\n jsEvent: ev,\n view: context.viewApi,\n });\n }\n };\n return EventHovering;\n}(Interaction));\n\nvar CalendarContent = /** @class */ (function (_super) {\n __extends(CalendarContent, _super);\n function CalendarContent() {\n var _this = _super !== null && _super.apply(this, arguments) || this;\n _this.buildViewContext = memoize(buildViewContext);\n _this.buildViewPropTransformers = memoize(buildViewPropTransformers);\n _this.buildToolbarProps = memoize(buildToolbarProps);\n _this.handleNavLinkClick = buildDelegationHandler('a[data-navlink]', _this._handleNavLinkClick.bind(_this));\n _this.headerRef = createRef();\n _this.footerRef = createRef();\n _this.interactionsStore = {};\n // Component Registration\n // -----------------------------------------------------------------------------------------------------------------\n _this.registerInteractiveComponent = function (component, settingsInput) {\n var settings = parseInteractionSettings(component, settingsInput);\n var DEFAULT_INTERACTIONS = [\n EventClicking,\n EventHovering,\n ];\n var interactionClasses = DEFAULT_INTERACTIONS.concat(_this.props.pluginHooks.componentInteractions);\n var interactions = interactionClasses.map(function (TheInteractionClass) { return new TheInteractionClass(settings); });\n _this.interactionsStore[component.uid] = interactions;\n interactionSettingsStore[component.uid] = settings;\n };\n _this.unregisterInteractiveComponent = function (component) {\n for (var _i = 0, _a = _this.interactionsStore[component.uid]; _i < _a.length; _i++) {\n var listener = _a[_i];\n listener.destroy();\n }\n delete _this.interactionsStore[component.uid];\n delete interactionSettingsStore[component.uid];\n };\n // Resizing\n // -----------------------------------------------------------------------------------------------------------------\n _this.resizeRunner = new DelayedRunner(function () {\n _this.props.emitter.trigger('_resize', true); // should window resizes be considered \"forced\" ?\n _this.props.emitter.trigger('windowResize', { view: _this.props.viewApi });\n });\n _this.handleWindowResize = function (ev) {\n var options = _this.props.options;\n if (options.handleWindowResize &&\n ev.target === window // avoid jqui events\n ) {\n _this.resizeRunner.request(options.windowResizeDelay);\n }\n };\n return _this;\n }\n /*\n renders INSIDE of an outer div\n */\n CalendarContent.prototype.render = function () {\n var props = this.props;\n var toolbarConfig = props.toolbarConfig, options = props.options;\n var toolbarProps = this.buildToolbarProps(props.viewSpec, props.dateProfile, props.dateProfileGenerator, props.currentDate, getNow(props.options.now, props.dateEnv), // TODO: use NowTimer????\n props.viewTitle);\n var viewVGrow = false;\n var viewHeight = '';\n var viewAspectRatio;\n if (props.isHeightAuto || props.forPrint) {\n viewHeight = '';\n }\n else if (options.height != null) {\n viewVGrow = true;\n }\n else if (options.contentHeight != null) {\n viewHeight = options.contentHeight;\n }\n else {\n viewAspectRatio = Math.max(options.aspectRatio, 0.5); // prevent from getting too tall\n }\n var viewContext = this.buildViewContext(props.viewSpec, props.viewApi, props.options, props.dateProfileGenerator, props.dateEnv, props.theme, props.pluginHooks, props.dispatch, props.getCurrentData, props.emitter, props.calendarApi, this.registerInteractiveComponent, this.unregisterInteractiveComponent);\n return (createElement(ViewContextType.Provider, { value: viewContext },\n toolbarConfig.headerToolbar && (createElement(Toolbar, __assign({ ref: this.headerRef, extraClassName: \"fc-header-toolbar\", model: toolbarConfig.headerToolbar }, toolbarProps))),\n createElement(ViewContainer, { liquid: viewVGrow, height: viewHeight, aspectRatio: viewAspectRatio, onClick: this.handleNavLinkClick },\n this.renderView(props),\n this.buildAppendContent()),\n toolbarConfig.footerToolbar && (createElement(Toolbar, __assign({ ref: this.footerRef, extraClassName: \"fc-footer-toolbar\", model: toolbarConfig.footerToolbar }, toolbarProps)))));\n };\n CalendarContent.prototype.componentDidMount = function () {\n var props = this.props;\n this.calendarInteractions = props.pluginHooks.calendarInteractions\n .map(function (CalendarInteractionClass) { return new CalendarInteractionClass(props); });\n window.addEventListener('resize', this.handleWindowResize);\n var propSetHandlers = props.pluginHooks.propSetHandlers;\n for (var propName in propSetHandlers) {\n propSetHandlers[propName](props[propName], props);\n }\n };\n CalendarContent.prototype.componentDidUpdate = function (prevProps) {\n var props = this.props;\n var propSetHandlers = props.pluginHooks.propSetHandlers;\n for (var propName in propSetHandlers) {\n if (props[propName] !== prevProps[propName]) {\n propSetHandlers[propName](props[propName], props);\n }\n }\n };\n CalendarContent.prototype.componentWillUnmount = function () {\n window.removeEventListener('resize', this.handleWindowResize);\n this.resizeRunner.clear();\n for (var _i = 0, _a = this.calendarInteractions; _i < _a.length; _i++) {\n var interaction = _a[_i];\n interaction.destroy();\n }\n this.props.emitter.trigger('_unmount');\n };\n CalendarContent.prototype._handleNavLinkClick = function (ev, anchorEl) {\n var _a = this.props, dateEnv = _a.dateEnv, options = _a.options, calendarApi = _a.calendarApi;\n var navLinkOptions = anchorEl.getAttribute('data-navlink');\n navLinkOptions = navLinkOptions ? JSON.parse(navLinkOptions) : {};\n var dateMarker = dateEnv.createMarker(navLinkOptions.date);\n var viewType = navLinkOptions.type;\n var customAction = viewType === 'day' ? options.navLinkDayClick :\n viewType === 'week' ? options.navLinkWeekClick : null;\n if (typeof customAction === 'function') {\n customAction.call(calendarApi, dateEnv.toDate(dateMarker), ev);\n }\n else {\n if (typeof customAction === 'string') {\n viewType = customAction;\n }\n calendarApi.zoomTo(dateMarker, viewType);\n }\n };\n CalendarContent.prototype.buildAppendContent = function () {\n var props = this.props;\n var children = props.pluginHooks.viewContainerAppends.map(function (buildAppendContent) { return buildAppendContent(props); });\n return createElement.apply(void 0, __spreadArrays([Fragment, {}], children));\n };\n CalendarContent.prototype.renderView = function (props) {\n var pluginHooks = props.pluginHooks;\n var viewSpec = props.viewSpec;\n var viewProps = {\n dateProfile: props.dateProfile,\n businessHours: props.businessHours,\n eventStore: props.renderableEventStore,\n eventUiBases: props.eventUiBases,\n dateSelection: props.dateSelection,\n eventSelection: props.eventSelection,\n eventDrag: props.eventDrag,\n eventResize: props.eventResize,\n isHeightAuto: props.isHeightAuto,\n forPrint: props.forPrint,\n };\n var transformers = this.buildViewPropTransformers(pluginHooks.viewPropsTransformers);\n for (var _i = 0, transformers_1 = transformers; _i < transformers_1.length; _i++) {\n var transformer = transformers_1[_i];\n __assign(viewProps, transformer.transform(viewProps, props));\n }\n var ViewComponent = viewSpec.component;\n return (createElement(ViewComponent, __assign({}, viewProps)));\n };\n return CalendarContent;\n}(PureComponent));\nfunction buildToolbarProps(viewSpec, dateProfile, dateProfileGenerator, currentDate, now, title) {\n // don't force any date-profiles to valid date profiles (the `false`) so that we can tell if it's invalid\n var todayInfo = dateProfileGenerator.build(now, undefined, false); // TODO: need `undefined` or else INFINITE LOOP for some reason\n var prevInfo = dateProfileGenerator.buildPrev(dateProfile, currentDate, false);\n var nextInfo = dateProfileGenerator.buildNext(dateProfile, currentDate, false);\n return {\n title: title,\n activeButton: viewSpec.type,\n isTodayEnabled: todayInfo.isValid && !rangeContainsMarker(dateProfile.currentRange, now),\n isPrevEnabled: prevInfo.isValid,\n isNextEnabled: nextInfo.isValid,\n };\n}\n// Plugin\n// -----------------------------------------------------------------------------------------------------------------\nfunction buildViewPropTransformers(theClasses) {\n return theClasses.map(function (TheClass) { return new TheClass(); });\n}\n\nvar CalendarRoot = /** @class */ (function (_super) {\n __extends(CalendarRoot, _super);\n function CalendarRoot() {\n var _this = _super !== null && _super.apply(this, arguments) || this;\n _this.state = {\n forPrint: false,\n };\n _this.handleBeforePrint = function () {\n _this.setState({ forPrint: true });\n };\n _this.handleAfterPrint = function () {\n _this.setState({ forPrint: false });\n };\n return _this;\n }\n CalendarRoot.prototype.render = function () {\n var props = this.props;\n var options = props.options;\n var forPrint = this.state.forPrint;\n var isHeightAuto = forPrint || options.height === 'auto' || options.contentHeight === 'auto';\n var height = (!isHeightAuto && options.height != null) ? options.height : '';\n var classNames = [\n 'fc',\n forPrint ? 'fc-media-print' : 'fc-media-screen',\n \"fc-direction-\" + options.direction,\n props.theme.getClass('root'),\n ];\n if (!getCanVGrowWithinCell()) {\n classNames.push('fc-liquid-hack');\n }\n return props.children(classNames, height, isHeightAuto, forPrint);\n };\n CalendarRoot.prototype.componentDidMount = function () {\n var emitter = this.props.emitter;\n emitter.on('_beforeprint', this.handleBeforePrint);\n emitter.on('_afterprint', this.handleAfterPrint);\n };\n CalendarRoot.prototype.componentWillUnmount = function () {\n var emitter = this.props.emitter;\n emitter.off('_beforeprint', this.handleBeforePrint);\n emitter.off('_afterprint', this.handleAfterPrint);\n };\n return CalendarRoot;\n}(BaseComponent));\n\n// Computes a default column header formatting string if `colFormat` is not explicitly defined\nfunction computeFallbackHeaderFormat(datesRepDistinctDays, dayCnt) {\n // if more than one week row, or if there are a lot of columns with not much space,\n // put just the day numbers will be in each cell\n if (!datesRepDistinctDays || dayCnt > 10) {\n return createFormatter({ weekday: 'short' }); // \"Sat\"\n }\n if (dayCnt > 1) {\n return createFormatter({ weekday: 'short', month: 'numeric', day: 'numeric', omitCommas: true }); // \"Sat 11/12\"\n }\n return createFormatter({ weekday: 'long' }); // \"Saturday\"\n}\n\nvar CLASS_NAME = 'fc-col-header-cell'; // do the cushion too? no\nfunction renderInner(hookProps) {\n return hookProps.text;\n}\n\nvar TableDateCell = /** @class */ (function (_super) {\n __extends(TableDateCell, _super);\n function TableDateCell() {\n return _super !== null && _super.apply(this, arguments) || this;\n }\n TableDateCell.prototype.render = function () {\n var _a = this.context, dateEnv = _a.dateEnv, options = _a.options, theme = _a.theme, viewApi = _a.viewApi;\n var props = this.props;\n var date = props.date, dateProfile = props.dateProfile;\n var dayMeta = getDateMeta(date, props.todayRange, null, dateProfile);\n var classNames = [CLASS_NAME].concat(getDayClassNames(dayMeta, theme));\n var text = dateEnv.format(date, props.dayHeaderFormat);\n // if colCnt is 1, we are already in a day-view and don't need a navlink\n var navLinkAttrs = (options.navLinks && !dayMeta.isDisabled && props.colCnt > 1)\n ? { 'data-navlink': buildNavLinkData(date), tabIndex: 0 }\n : {};\n var hookProps = __assign(__assign(__assign({ date: dateEnv.toDate(date), view: viewApi }, props.extraHookProps), { text: text }), dayMeta);\n return (createElement(RenderHook, { hookProps: hookProps, classNames: options.dayHeaderClassNames, content: options.dayHeaderContent, defaultContent: renderInner, didMount: options.dayHeaderDidMount, willUnmount: options.dayHeaderWillUnmount }, function (rootElRef, customClassNames, innerElRef, innerContent) { return (createElement(\"th\", __assign({ ref: rootElRef, className: classNames.concat(customClassNames).join(' '), \"data-date\": !dayMeta.isDisabled ? formatDayString(date) : undefined, colSpan: props.colSpan }, props.extraDataAttrs),\n createElement(\"div\", { className: \"fc-scrollgrid-sync-inner\" }, !dayMeta.isDisabled && (createElement(\"a\", __assign({ ref: innerElRef, className: [\n 'fc-col-header-cell-cushion',\n props.isSticky ? 'fc-sticky' : '',\n ].join(' ') }, navLinkAttrs), innerContent))))); }));\n };\n return TableDateCell;\n}(BaseComponent));\n\nvar TableDowCell = /** @class */ (function (_super) {\n __extends(TableDowCell, _super);\n function TableDowCell() {\n return _super !== null && _super.apply(this, arguments) || this;\n }\n TableDowCell.prototype.render = function () {\n var props = this.props;\n var _a = this.context, dateEnv = _a.dateEnv, theme = _a.theme, viewApi = _a.viewApi, options = _a.options;\n var date = addDays(new Date(259200000), props.dow); // start with Sun, 04 Jan 1970 00:00:00 GMT\n var dateMeta = {\n dow: props.dow,\n isDisabled: false,\n isFuture: false,\n isPast: false,\n isToday: false,\n isOther: false,\n };\n var classNames = [CLASS_NAME].concat(getDayClassNames(dateMeta, theme), props.extraClassNames || []);\n var text = dateEnv.format(date, props.dayHeaderFormat);\n var hookProps = __assign(__assign(__assign(__assign({ // TODO: make this public?\n date: date }, dateMeta), { view: viewApi }), props.extraHookProps), { text: text });\n return (createElement(RenderHook, { hookProps: hookProps, classNames: options.dayHeaderClassNames, content: options.dayHeaderContent, defaultContent: renderInner, didMount: options.dayHeaderDidMount, willUnmount: options.dayHeaderWillUnmount }, function (rootElRef, customClassNames, innerElRef, innerContent) { return (createElement(\"th\", __assign({ ref: rootElRef, className: classNames.concat(customClassNames).join(' '), colSpan: props.colSpan }, props.extraDataAttrs),\n createElement(\"div\", { className: \"fc-scrollgrid-sync-inner\" },\n createElement(\"a\", { className: [\n 'fc-col-header-cell-cushion',\n props.isSticky ? 'fc-sticky' : '',\n ].join(' '), ref: innerElRef }, innerContent)))); }));\n };\n return TableDowCell;\n}(BaseComponent));\n\nvar NowTimer = /** @class */ (function (_super) {\n __extends(NowTimer, _super);\n function NowTimer(props, context) {\n var _this = _super.call(this, props, context) || this;\n _this.initialNowDate = getNow(context.options.now, context.dateEnv);\n _this.initialNowQueriedMs = new Date().valueOf();\n _this.state = _this.computeTiming().currentState;\n return _this;\n }\n NowTimer.prototype.render = function () {\n var _a = this, props = _a.props, state = _a.state;\n return props.children(state.nowDate, state.todayRange);\n };\n NowTimer.prototype.componentDidMount = function () {\n this.setTimeout();\n };\n NowTimer.prototype.componentDidUpdate = function (prevProps) {\n if (prevProps.unit !== this.props.unit) {\n this.clearTimeout();\n this.setTimeout();\n }\n };\n NowTimer.prototype.componentWillUnmount = function () {\n this.clearTimeout();\n };\n NowTimer.prototype.computeTiming = function () {\n var _a = this, props = _a.props, context = _a.context;\n var unroundedNow = addMs(this.initialNowDate, new Date().valueOf() - this.initialNowQueriedMs);\n var currentUnitStart = context.dateEnv.startOf(unroundedNow, props.unit);\n var nextUnitStart = context.dateEnv.add(currentUnitStart, createDuration(1, props.unit));\n var waitMs = nextUnitStart.valueOf() - unroundedNow.valueOf();\n // there is a max setTimeout ms value (https://stackoverflow.com/a/3468650/96342)\n // ensure no longer than a day\n waitMs = Math.min(1000 * 60 * 60 * 24, waitMs);\n return {\n currentState: { nowDate: currentUnitStart, todayRange: buildDayRange(currentUnitStart) },\n nextState: { nowDate: nextUnitStart, todayRange: buildDayRange(nextUnitStart) },\n waitMs: waitMs,\n };\n };\n NowTimer.prototype.setTimeout = function () {\n var _this = this;\n var _a = this.computeTiming(), nextState = _a.nextState, waitMs = _a.waitMs;\n this.timeoutId = setTimeout(function () {\n _this.setState(nextState, function () {\n _this.setTimeout();\n });\n }, waitMs);\n };\n NowTimer.prototype.clearTimeout = function () {\n if (this.timeoutId) {\n clearTimeout(this.timeoutId);\n }\n };\n NowTimer.contextType = ViewContextType;\n return NowTimer;\n}(Component));\nfunction buildDayRange(date) {\n var start = startOfDay(date);\n var end = addDays(start, 1);\n return { start: start, end: end };\n}\n\nvar DayHeader = /** @class */ (function (_super) {\n __extends(DayHeader, _super);\n function DayHeader() {\n var _this = _super !== null && _super.apply(this, arguments) || this;\n _this.createDayHeaderFormatter = memoize(createDayHeaderFormatter);\n return _this;\n }\n DayHeader.prototype.render = function () {\n var context = this.context;\n var _a = this.props, dates = _a.dates, dateProfile = _a.dateProfile, datesRepDistinctDays = _a.datesRepDistinctDays, renderIntro = _a.renderIntro;\n var dayHeaderFormat = this.createDayHeaderFormatter(context.options.dayHeaderFormat, datesRepDistinctDays, dates.length);\n return (createElement(NowTimer, { unit: \"day\" }, function (nowDate, todayRange) { return (createElement(\"tr\", null,\n renderIntro && renderIntro('day'),\n dates.map(function (date) { return (datesRepDistinctDays ? (createElement(TableDateCell, { key: date.toISOString(), date: date, dateProfile: dateProfile, todayRange: todayRange, colCnt: dates.length, dayHeaderFormat: dayHeaderFormat })) : (createElement(TableDowCell, { key: date.getUTCDay(), dow: date.getUTCDay(), dayHeaderFormat: dayHeaderFormat }))); }))); }));\n };\n return DayHeader;\n}(BaseComponent));\nfunction createDayHeaderFormatter(explicitFormat, datesRepDistinctDays, dateCnt) {\n return explicitFormat || computeFallbackHeaderFormat(datesRepDistinctDays, dateCnt);\n}\n\nvar DaySeriesModel = /** @class */ (function () {\n function DaySeriesModel(range, dateProfileGenerator) {\n var date = range.start;\n var end = range.end;\n var indices = [];\n var dates = [];\n var dayIndex = -1;\n while (date < end) { // loop each day from start to end\n if (dateProfileGenerator.isHiddenDay(date)) {\n indices.push(dayIndex + 0.5); // mark that it's between indices\n }\n else {\n dayIndex += 1;\n indices.push(dayIndex);\n dates.push(date);\n }\n date = addDays(date, 1);\n }\n this.dates = dates;\n this.indices = indices;\n this.cnt = dates.length;\n }\n DaySeriesModel.prototype.sliceRange = function (range) {\n var firstIndex = this.getDateDayIndex(range.start); // inclusive first index\n var lastIndex = this.getDateDayIndex(addDays(range.end, -1)); // inclusive last index\n var clippedFirstIndex = Math.max(0, firstIndex);\n var clippedLastIndex = Math.min(this.cnt - 1, lastIndex);\n // deal with in-between indices\n clippedFirstIndex = Math.ceil(clippedFirstIndex); // in-between starts round to next cell\n clippedLastIndex = Math.floor(clippedLastIndex); // in-between ends round to prev cell\n if (clippedFirstIndex <= clippedLastIndex) {\n return {\n firstIndex: clippedFirstIndex,\n lastIndex: clippedLastIndex,\n isStart: firstIndex === clippedFirstIndex,\n isEnd: lastIndex === clippedLastIndex,\n };\n }\n return null;\n };\n // Given a date, returns its chronolocial cell-index from the first cell of the grid.\n // If the date lies between cells (because of hiddenDays), returns a floating-point value between offsets.\n // If before the first offset, returns a negative number.\n // If after the last offset, returns an offset past the last cell offset.\n // Only works for *start* dates of cells. Will not work for exclusive end dates for cells.\n DaySeriesModel.prototype.getDateDayIndex = function (date) {\n var indices = this.indices;\n var dayOffset = Math.floor(diffDays(this.dates[0], date));\n if (dayOffset < 0) {\n return indices[0] - 1;\n }\n if (dayOffset >= indices.length) {\n return indices[indices.length - 1] + 1;\n }\n return indices[dayOffset];\n };\n return DaySeriesModel;\n}());\n\nvar DayTableModel = /** @class */ (function () {\n function DayTableModel(daySeries, breakOnWeeks) {\n var dates = daySeries.dates;\n var daysPerRow;\n var firstDay;\n var rowCnt;\n if (breakOnWeeks) {\n // count columns until the day-of-week repeats\n firstDay = dates[0].getUTCDay();\n for (daysPerRow = 1; daysPerRow < dates.length; daysPerRow += 1) {\n if (dates[daysPerRow].getUTCDay() === firstDay) {\n break;\n }\n }\n rowCnt = Math.ceil(dates.length / daysPerRow);\n }\n else {\n rowCnt = 1;\n daysPerRow = dates.length;\n }\n this.rowCnt = rowCnt;\n this.colCnt = daysPerRow;\n this.daySeries = daySeries;\n this.cells = this.buildCells();\n this.headerDates = this.buildHeaderDates();\n }\n DayTableModel.prototype.buildCells = function () {\n var rows = [];\n for (var row = 0; row < this.rowCnt; row += 1) {\n var cells = [];\n for (var col = 0; col < this.colCnt; col += 1) {\n cells.push(this.buildCell(row, col));\n }\n rows.push(cells);\n }\n return rows;\n };\n DayTableModel.prototype.buildCell = function (row, col) {\n var date = this.daySeries.dates[row * this.colCnt + col];\n return {\n key: date.toISOString(),\n date: date,\n };\n };\n DayTableModel.prototype.buildHeaderDates = function () {\n var dates = [];\n for (var col = 0; col < this.colCnt; col += 1) {\n dates.push(this.cells[0][col].date);\n }\n return dates;\n };\n DayTableModel.prototype.sliceRange = function (range) {\n var colCnt = this.colCnt;\n var seriesSeg = this.daySeries.sliceRange(range);\n var segs = [];\n if (seriesSeg) {\n var firstIndex = seriesSeg.firstIndex, lastIndex = seriesSeg.lastIndex;\n var index = firstIndex;\n while (index <= lastIndex) {\n var row = Math.floor(index / colCnt);\n var nextIndex = Math.min((row + 1) * colCnt, lastIndex + 1);\n segs.push({\n row: row,\n firstCol: index % colCnt,\n lastCol: (nextIndex - 1) % colCnt,\n isStart: seriesSeg.isStart && index === firstIndex,\n isEnd: seriesSeg.isEnd && (nextIndex - 1) === lastIndex,\n });\n index = nextIndex;\n }\n }\n return segs;\n };\n return DayTableModel;\n}());\n\nvar Slicer = /** @class */ (function () {\n function Slicer() {\n this.sliceBusinessHours = memoize(this._sliceBusinessHours);\n this.sliceDateSelection = memoize(this._sliceDateSpan);\n this.sliceEventStore = memoize(this._sliceEventStore);\n this.sliceEventDrag = memoize(this._sliceInteraction);\n this.sliceEventResize = memoize(this._sliceInteraction);\n this.forceDayIfListItem = false; // hack\n }\n Slicer.prototype.sliceProps = function (props, dateProfile, nextDayThreshold, context) {\n var extraArgs = [];\n for (var _i = 4; _i < arguments.length; _i++) {\n extraArgs[_i - 4] = arguments[_i];\n }\n var eventUiBases = props.eventUiBases;\n var eventSegs = this.sliceEventStore.apply(this, __spreadArrays([props.eventStore, eventUiBases, dateProfile, nextDayThreshold], extraArgs));\n return {\n dateSelectionSegs: this.sliceDateSelection.apply(this, __spreadArrays([props.dateSelection, eventUiBases, context], extraArgs)),\n businessHourSegs: this.sliceBusinessHours.apply(this, __spreadArrays([props.businessHours, dateProfile, nextDayThreshold, context], extraArgs)),\n fgEventSegs: eventSegs.fg,\n bgEventSegs: eventSegs.bg,\n eventDrag: this.sliceEventDrag.apply(this, __spreadArrays([props.eventDrag, eventUiBases, dateProfile, nextDayThreshold], extraArgs)),\n eventResize: this.sliceEventResize.apply(this, __spreadArrays([props.eventResize, eventUiBases, dateProfile, nextDayThreshold], extraArgs)),\n eventSelection: props.eventSelection,\n }; // TODO: give interactionSegs?\n };\n Slicer.prototype.sliceNowDate = function (// does not memoize\n date, context) {\n var extraArgs = [];\n for (var _i = 2; _i < arguments.length; _i++) {\n extraArgs[_i - 2] = arguments[_i];\n }\n return this._sliceDateSpan.apply(this, __spreadArrays([{ range: { start: date, end: addMs(date, 1) }, allDay: false },\n {},\n context], extraArgs));\n };\n Slicer.prototype._sliceBusinessHours = function (businessHours, dateProfile, nextDayThreshold, context) {\n var extraArgs = [];\n for (var _i = 4; _i < arguments.length; _i++) {\n extraArgs[_i - 4] = arguments[_i];\n }\n if (!businessHours) {\n return [];\n }\n return this._sliceEventStore.apply(this, __spreadArrays([expandRecurring(businessHours, computeActiveRange(dateProfile, Boolean(nextDayThreshold)), context),\n {},\n dateProfile,\n nextDayThreshold], extraArgs)).bg;\n };\n Slicer.prototype._sliceEventStore = function (eventStore, eventUiBases, dateProfile, nextDayThreshold) {\n var extraArgs = [];\n for (var _i = 4; _i < arguments.length; _i++) {\n extraArgs[_i - 4] = arguments[_i];\n }\n if (eventStore) {\n var rangeRes = sliceEventStore(eventStore, eventUiBases, computeActiveRange(dateProfile, Boolean(nextDayThreshold)), nextDayThreshold);\n return {\n bg: this.sliceEventRanges(rangeRes.bg, extraArgs),\n fg: this.sliceEventRanges(rangeRes.fg, extraArgs),\n };\n }\n return { bg: [], fg: [] };\n };\n Slicer.prototype._sliceInteraction = function (interaction, eventUiBases, dateProfile, nextDayThreshold) {\n var extraArgs = [];\n for (var _i = 4; _i < arguments.length; _i++) {\n extraArgs[_i - 4] = arguments[_i];\n }\n if (!interaction) {\n return null;\n }\n var rangeRes = sliceEventStore(interaction.mutatedEvents, eventUiBases, computeActiveRange(dateProfile, Boolean(nextDayThreshold)), nextDayThreshold);\n return {\n segs: this.sliceEventRanges(rangeRes.fg, extraArgs),\n affectedInstances: interaction.affectedEvents.instances,\n isEvent: interaction.isEvent,\n };\n };\n Slicer.prototype._sliceDateSpan = function (dateSpan, eventUiBases, context) {\n var extraArgs = [];\n for (var _i = 3; _i < arguments.length; _i++) {\n extraArgs[_i - 3] = arguments[_i];\n }\n if (!dateSpan) {\n return [];\n }\n var eventRange = fabricateEventRange(dateSpan, eventUiBases, context);\n var segs = this.sliceRange.apply(this, __spreadArrays([dateSpan.range], extraArgs));\n for (var _a = 0, segs_1 = segs; _a < segs_1.length; _a++) {\n var seg = segs_1[_a];\n seg.eventRange = eventRange;\n }\n return segs;\n };\n /*\n \"complete\" seg means it has component and eventRange\n */\n Slicer.prototype.sliceEventRanges = function (eventRanges, extraArgs) {\n var segs = [];\n for (var _i = 0, eventRanges_1 = eventRanges; _i < eventRanges_1.length; _i++) {\n var eventRange = eventRanges_1[_i];\n segs.push.apply(segs, this.sliceEventRange(eventRange, extraArgs));\n }\n return segs;\n };\n /*\n \"complete\" seg means it has component and eventRange\n */\n Slicer.prototype.sliceEventRange = function (eventRange, extraArgs) {\n var dateRange = eventRange.range;\n // hack to make multi-day events that are being force-displayed as list-items to take up only one day\n if (this.forceDayIfListItem && eventRange.ui.display === 'list-item') {\n dateRange = {\n start: dateRange.start,\n end: addDays(dateRange.start, 1),\n };\n }\n var segs = this.sliceRange.apply(this, __spreadArrays([dateRange], extraArgs));\n for (var _i = 0, segs_2 = segs; _i < segs_2.length; _i++) {\n var seg = segs_2[_i];\n seg.eventRange = eventRange;\n seg.isStart = eventRange.isStart && seg.isStart;\n seg.isEnd = eventRange.isEnd && seg.isEnd;\n }\n return segs;\n };\n return Slicer;\n}());\n/*\nfor incorporating slotMinTime/slotMaxTime if appropriate\nTODO: should be part of DateProfile!\nTimelineDateProfile already does this btw\n*/\nfunction computeActiveRange(dateProfile, isComponentAllDay) {\n var range = dateProfile.activeRange;\n if (isComponentAllDay) {\n return range;\n }\n return {\n start: addMs(range.start, dateProfile.slotMinTime.milliseconds),\n end: addMs(range.end, dateProfile.slotMaxTime.milliseconds - 864e5),\n };\n}\n\nvar VISIBLE_HIDDEN_RE = /^(visible|hidden)$/;\nvar Scroller = /** @class */ (function (_super) {\n __extends(Scroller, _super);\n function Scroller() {\n var _this = _super !== null && _super.apply(this, arguments) || this;\n _this.handleEl = function (el) {\n _this.el = el;\n setRef(_this.props.elRef, el);\n };\n return _this;\n }\n Scroller.prototype.render = function () {\n var props = this.props;\n var liquid = props.liquid, liquidIsAbsolute = props.liquidIsAbsolute;\n var isAbsolute = liquid && liquidIsAbsolute;\n var className = ['fc-scroller'];\n if (liquid) {\n if (liquidIsAbsolute) {\n className.push('fc-scroller-liquid-absolute');\n }\n else {\n className.push('fc-scroller-liquid');\n }\n }\n return (createElement(\"div\", { ref: this.handleEl, className: className.join(' '), style: {\n overflowX: props.overflowX,\n overflowY: props.overflowY,\n left: (isAbsolute && -(props.overcomeLeft || 0)) || '',\n right: (isAbsolute && -(props.overcomeRight || 0)) || '',\n bottom: (isAbsolute && -(props.overcomeBottom || 0)) || '',\n marginLeft: (!isAbsolute && -(props.overcomeLeft || 0)) || '',\n marginRight: (!isAbsolute && -(props.overcomeRight || 0)) || '',\n marginBottom: (!isAbsolute && -(props.overcomeBottom || 0)) || '',\n maxHeight: props.maxHeight || '',\n } }, props.children));\n };\n Scroller.prototype.needsXScrolling = function () {\n if (VISIBLE_HIDDEN_RE.test(this.props.overflowX)) {\n return false;\n }\n // testing scrollWidth>clientWidth is unreliable cross-browser when pixel heights aren't integers.\n // much more reliable to see if children are taller than the scroller, even tho doesn't account for\n // inner-child margins and absolute positioning\n var el = this.el;\n var realClientWidth = this.el.getBoundingClientRect().width - this.getYScrollbarWidth();\n var children = el.children;\n for (var i = 0; i < children.length; i += 1) {\n var childEl = children[i];\n if (childEl.getBoundingClientRect().width > realClientWidth) {\n return true;\n }\n }\n return false;\n };\n Scroller.prototype.needsYScrolling = function () {\n if (VISIBLE_HIDDEN_RE.test(this.props.overflowY)) {\n return false;\n }\n // testing scrollHeight>clientHeight is unreliable cross-browser when pixel heights aren't integers.\n // much more reliable to see if children are taller than the scroller, even tho doesn't account for\n // inner-child margins and absolute positioning\n var el = this.el;\n var realClientHeight = this.el.getBoundingClientRect().height - this.getXScrollbarWidth();\n var children = el.children;\n for (var i = 0; i < children.length; i += 1) {\n var childEl = children[i];\n if (childEl.getBoundingClientRect().height > realClientHeight) {\n return true;\n }\n }\n return false;\n };\n Scroller.prototype.getXScrollbarWidth = function () {\n if (VISIBLE_HIDDEN_RE.test(this.props.overflowX)) {\n return 0;\n }\n return this.el.offsetHeight - this.el.clientHeight; // only works because we guarantee no borders. TODO: add to CSS with important?\n };\n Scroller.prototype.getYScrollbarWidth = function () {\n if (VISIBLE_HIDDEN_RE.test(this.props.overflowY)) {\n return 0;\n }\n return this.el.offsetWidth - this.el.clientWidth; // only works because we guarantee no borders. TODO: add to CSS with important?\n };\n return Scroller;\n}(BaseComponent));\n\n/*\nTODO: somehow infer OtherArgs from masterCallback?\nTODO: infer RefType from masterCallback if provided\n*/\nvar RefMap = /** @class */ (function () {\n function RefMap(masterCallback) {\n var _this = this;\n this.masterCallback = masterCallback;\n this.currentMap = {};\n this.depths = {};\n this.callbackMap = {};\n this.handleValue = function (val, key) {\n var _a = _this, depths = _a.depths, currentMap = _a.currentMap;\n var removed = false;\n var added = false;\n if (val !== null) {\n // for bug... ACTUALLY: can probably do away with this now that callers don't share numeric indices anymore\n removed = (key in currentMap);\n currentMap[key] = val;\n depths[key] = (depths[key] || 0) + 1;\n added = true;\n }\n else {\n depths[key] -= 1;\n if (!depths[key]) {\n delete currentMap[key];\n delete _this.callbackMap[key];\n removed = true;\n }\n }\n if (_this.masterCallback) {\n if (removed) {\n _this.masterCallback(null, String(key));\n }\n if (added) {\n _this.masterCallback(val, String(key));\n }\n }\n };\n }\n RefMap.prototype.createRef = function (key) {\n var _this = this;\n var refCallback = this.callbackMap[key];\n if (!refCallback) {\n refCallback = this.callbackMap[key] = function (val) {\n _this.handleValue(val, String(key));\n };\n }\n return refCallback;\n };\n // TODO: check callers that don't care about order. should use getAll instead\n // NOTE: this method has become less valuable now that we are encouraged to map order by some other index\n // TODO: provide ONE array-export function, buildArray, which fails on non-numeric indexes. caller can manipulate and \"collect\"\n RefMap.prototype.collect = function (startIndex, endIndex, step) {\n return collectFromHash(this.currentMap, startIndex, endIndex, step);\n };\n RefMap.prototype.getAll = function () {\n return hashValuesToArray(this.currentMap);\n };\n return RefMap;\n}());\n\nfunction computeShrinkWidth(chunkEls) {\n var shrinkCells = findElements(chunkEls, '.fc-scrollgrid-shrink');\n var largestWidth = 0;\n for (var _i = 0, shrinkCells_1 = shrinkCells; _i < shrinkCells_1.length; _i++) {\n var shrinkCell = shrinkCells_1[_i];\n largestWidth = Math.max(largestWidth, computeSmallestCellWidth(shrinkCell));\n }\n return Math.ceil(largestWidth); // elements work best with integers. round up to ensure contents fits\n}\nfunction getSectionHasLiquidHeight(props, sectionConfig) {\n return props.liquid && sectionConfig.liquid; // does the section do liquid-height? (need to have whole scrollgrid liquid-height as well)\n}\nfunction getAllowYScrolling(props, sectionConfig) {\n return sectionConfig.maxHeight != null || // if its possible for the height to max out, we might need scrollbars\n getSectionHasLiquidHeight(props, sectionConfig); // if the section is liquid height, it might condense enough to require scrollbars\n}\n// TODO: ONLY use `arg`. force out internal function to use same API\nfunction renderChunkContent(sectionConfig, chunkConfig, arg) {\n var expandRows = arg.expandRows;\n var content = typeof chunkConfig.content === 'function' ?\n chunkConfig.content(arg) :\n createElement('table', {\n className: [\n chunkConfig.tableClassName,\n sectionConfig.syncRowHeights ? 'fc-scrollgrid-sync-table' : '',\n ].join(' '),\n style: {\n minWidth: arg.tableMinWidth,\n width: arg.clientWidth,\n height: expandRows ? arg.clientHeight : '',\n },\n }, arg.tableColGroupNode, createElement('tbody', {}, typeof chunkConfig.rowContent === 'function' ? chunkConfig.rowContent(arg) : chunkConfig.rowContent));\n return content;\n}\nfunction isColPropsEqual(cols0, cols1) {\n return isArraysEqual(cols0, cols1, isPropsEqual);\n}\nfunction renderMicroColGroup(cols, shrinkWidth) {\n var colNodes = [];\n /*\n for ColProps with spans, it would have been great to make a single \n HOWEVER, Chrome was getting messing up distributing the width to | / | elements with colspans.\n SOLUTION: making individual elements makes Chrome behave.\n */\n for (var _i = 0, cols_1 = cols; _i < cols_1.length; _i++) {\n var colProps = cols_1[_i];\n var span = colProps.span || 1;\n for (var i = 0; i < span; i += 1) {\n colNodes.push(createElement(\"col\", { style: {\n width: colProps.width === 'shrink' ? sanitizeShrinkWidth(shrinkWidth) : (colProps.width || ''),\n minWidth: colProps.minWidth || '',\n } }));\n }\n }\n return createElement.apply(void 0, __spreadArrays(['colgroup', {}], colNodes));\n}\nfunction sanitizeShrinkWidth(shrinkWidth) {\n /* why 4? if we do 0, it will kill any border, which are needed for computeSmallestCellWidth\n 4 accounts for 2 2-pixel borders. TODO: better solution? */\n return shrinkWidth == null ? 4 : shrinkWidth;\n}\nfunction hasShrinkWidth(cols) {\n for (var _i = 0, cols_2 = cols; _i < cols_2.length; _i++) {\n var col = cols_2[_i];\n if (col.width === 'shrink') {\n return true;\n }\n }\n return false;\n}\nfunction getScrollGridClassNames(liquid, context) {\n var classNames = [\n 'fc-scrollgrid',\n context.theme.getClass('table'),\n ];\n if (liquid) {\n classNames.push('fc-scrollgrid-liquid');\n }\n return classNames;\n}\nfunction getSectionClassNames(sectionConfig, wholeTableVGrow) {\n var classNames = [\n 'fc-scrollgrid-section',\n \"fc-scrollgrid-section-\" + sectionConfig.type,\n sectionConfig.className,\n ];\n if (wholeTableVGrow && sectionConfig.liquid && sectionConfig.maxHeight == null) {\n classNames.push('fc-scrollgrid-section-liquid');\n }\n if (sectionConfig.isSticky) {\n classNames.push('fc-scrollgrid-section-sticky');\n }\n return classNames;\n}\nfunction renderScrollShim(arg) {\n return (createElement(\"div\", { className: \"fc-scrollgrid-sticky-shim\", style: {\n width: arg.clientWidth,\n minWidth: arg.tableMinWidth,\n } }));\n}\nfunction getStickyHeaderDates(options) {\n var stickyHeaderDates = options.stickyHeaderDates;\n if (stickyHeaderDates == null || stickyHeaderDates === 'auto') {\n stickyHeaderDates = options.height === 'auto' || options.viewHeight === 'auto';\n }\n return stickyHeaderDates;\n}\nfunction getStickyFooterScrollbar(options) {\n var stickyFooterScrollbar = options.stickyFooterScrollbar;\n if (stickyFooterScrollbar == null || stickyFooterScrollbar === 'auto') {\n stickyFooterScrollbar = options.height === 'auto' || options.viewHeight === 'auto';\n }\n return stickyFooterScrollbar;\n}\n\nvar SimpleScrollGrid = /** @class */ (function (_super) {\n __extends(SimpleScrollGrid, _super);\n function SimpleScrollGrid() {\n var _this = _super !== null && _super.apply(this, arguments) || this;\n _this.processCols = memoize(function (a) { return a; }, isColPropsEqual); // so we get same `cols` props every time\n // yucky to memoize VNodes, but much more efficient for consumers\n _this.renderMicroColGroup = memoize(renderMicroColGroup);\n _this.scrollerRefs = new RefMap();\n _this.scrollerElRefs = new RefMap(_this._handleScrollerEl.bind(_this));\n _this.state = {\n shrinkWidth: null,\n forceYScrollbars: false,\n scrollerClientWidths: {},\n scrollerClientHeights: {},\n };\n // TODO: can do a really simple print-view. dont need to join rows\n _this.handleSizing = function () {\n _this.setState(__assign({ shrinkWidth: _this.computeShrinkWidth() }, _this.computeScrollerDims()));\n };\n return _this;\n }\n SimpleScrollGrid.prototype.render = function () {\n var _a = this, props = _a.props, state = _a.state, context = _a.context;\n var sectionConfigs = props.sections || [];\n var cols = this.processCols(props.cols);\n var microColGroupNode = this.renderMicroColGroup(cols, state.shrinkWidth);\n var classNames = getScrollGridClassNames(props.liquid, context);\n // TODO: make DRY\n var configCnt = sectionConfigs.length;\n var configI = 0;\n var currentConfig;\n var headSectionNodes = [];\n var bodySectionNodes = [];\n var footSectionNodes = [];\n while (configI < configCnt && (currentConfig = sectionConfigs[configI]).type === 'header') {\n headSectionNodes.push(this.renderSection(currentConfig, microColGroupNode));\n configI += 1;\n }\n while (configI < configCnt && (currentConfig = sectionConfigs[configI]).type === 'body') {\n bodySectionNodes.push(this.renderSection(currentConfig, microColGroupNode));\n configI += 1;\n }\n while (configI < configCnt && (currentConfig = sectionConfigs[configI]).type === 'footer') {\n footSectionNodes.push(this.renderSection(currentConfig, microColGroupNode));\n configI += 1;\n }\n // firefox bug: when setting height on table and there is a thead or tfoot,\n // the necessary height:100% on the liquid-height body section forces the *whole* table to be taller. (bug #5524)\n // use getCanVGrowWithinCell as a way to detect table-stupid firefox.\n // if so, use a simpler dom structure, jam everything into a lone tbody.\n var isBuggy = !getCanVGrowWithinCell();\n return createElement('table', {\n className: classNames.join(' '),\n style: { height: props.height },\n }, Boolean(!isBuggy && headSectionNodes.length) && createElement.apply(void 0, __spreadArrays(['thead', {}], headSectionNodes)), Boolean(!isBuggy && bodySectionNodes.length) && createElement.apply(void 0, __spreadArrays(['tbody', {}], bodySectionNodes)), Boolean(!isBuggy && footSectionNodes.length) && createElement.apply(void 0, __spreadArrays(['tfoot', {}], footSectionNodes)), isBuggy && createElement.apply(void 0, __spreadArrays(['tbody', {}], headSectionNodes, bodySectionNodes, footSectionNodes)));\n };\n SimpleScrollGrid.prototype.renderSection = function (sectionConfig, microColGroupNode) {\n if ('outerContent' in sectionConfig) {\n return (createElement(Fragment, { key: sectionConfig.key }, sectionConfig.outerContent));\n }\n return (createElement(\"tr\", { key: sectionConfig.key, className: getSectionClassNames(sectionConfig, this.props.liquid).join(' ') }, this.renderChunkTd(sectionConfig, microColGroupNode, sectionConfig.chunk)));\n };\n SimpleScrollGrid.prototype.renderChunkTd = function (sectionConfig, microColGroupNode, chunkConfig) {\n if ('outerContent' in chunkConfig) {\n return chunkConfig.outerContent;\n }\n var props = this.props;\n var _a = this.state, forceYScrollbars = _a.forceYScrollbars, scrollerClientWidths = _a.scrollerClientWidths, scrollerClientHeights = _a.scrollerClientHeights;\n var needsYScrolling = getAllowYScrolling(props, sectionConfig); // TODO: do lazily. do in section config?\n var isLiquid = getSectionHasLiquidHeight(props, sectionConfig);\n // for `!props.liquid` - is WHOLE scrollgrid natural height?\n // TODO: do same thing in advanced scrollgrid? prolly not b/c always has horizontal scrollbars\n var overflowY = !props.liquid ? 'visible' :\n forceYScrollbars ? 'scroll' :\n !needsYScrolling ? 'hidden' :\n 'auto';\n var sectionKey = sectionConfig.key;\n var content = renderChunkContent(sectionConfig, chunkConfig, {\n tableColGroupNode: microColGroupNode,\n tableMinWidth: '',\n clientWidth: scrollerClientWidths[sectionKey] !== undefined ? scrollerClientWidths[sectionKey] : null,\n clientHeight: scrollerClientHeights[sectionKey] !== undefined ? scrollerClientHeights[sectionKey] : null,\n expandRows: sectionConfig.expandRows,\n syncRowHeights: false,\n rowSyncHeights: [],\n reportRowHeightChange: function () { },\n });\n return (createElement(\"td\", { ref: chunkConfig.elRef },\n createElement(\"div\", { className: \"fc-scroller-harness\" + (isLiquid ? ' fc-scroller-harness-liquid' : '') },\n createElement(Scroller, { ref: this.scrollerRefs.createRef(sectionKey), elRef: this.scrollerElRefs.createRef(sectionKey), overflowY: overflowY, overflowX: !props.liquid ? 'visible' : 'hidden' /* natural height? */, maxHeight: sectionConfig.maxHeight, liquid: isLiquid, liquidIsAbsolute // because its within a harness\n : true }, content))));\n };\n SimpleScrollGrid.prototype._handleScrollerEl = function (scrollerEl, key) {\n var section = getSectionByKey(this.props.sections, key);\n if (section) {\n setRef(section.chunk.scrollerElRef, scrollerEl);\n }\n };\n SimpleScrollGrid.prototype.componentDidMount = function () {\n this.handleSizing();\n this.context.addResizeHandler(this.handleSizing);\n };\n SimpleScrollGrid.prototype.componentDidUpdate = function () {\n // TODO: need better solution when state contains non-sizing things\n this.handleSizing();\n };\n SimpleScrollGrid.prototype.componentWillUnmount = function () {\n this.context.removeResizeHandler(this.handleSizing);\n };\n SimpleScrollGrid.prototype.computeShrinkWidth = function () {\n return hasShrinkWidth(this.props.cols)\n ? computeShrinkWidth(this.scrollerElRefs.getAll())\n : 0;\n };\n SimpleScrollGrid.prototype.computeScrollerDims = function () {\n var scrollbarWidth = getScrollbarWidths();\n var _a = this, scrollerRefs = _a.scrollerRefs, scrollerElRefs = _a.scrollerElRefs;\n var forceYScrollbars = false;\n var scrollerClientWidths = {};\n var scrollerClientHeights = {};\n for (var sectionKey in scrollerRefs.currentMap) {\n var scroller = scrollerRefs.currentMap[sectionKey];\n if (scroller && scroller.needsYScrolling()) {\n forceYScrollbars = true;\n break;\n }\n }\n for (var _i = 0, _b = this.props.sections; _i < _b.length; _i++) {\n var section = _b[_i];\n var sectionKey = section.key;\n var scrollerEl = scrollerElRefs.currentMap[sectionKey];\n if (scrollerEl) {\n var harnessEl = scrollerEl.parentNode; // TODO: weird way to get this. need harness b/c doesn't include table borders\n scrollerClientWidths[sectionKey] = Math.floor(harnessEl.getBoundingClientRect().width - (forceYScrollbars\n ? scrollbarWidth.y // use global because scroller might not have scrollbars yet but will need them in future\n : 0));\n scrollerClientHeights[sectionKey] = Math.floor(harnessEl.getBoundingClientRect().height);\n }\n }\n return { forceYScrollbars: forceYScrollbars, scrollerClientWidths: scrollerClientWidths, scrollerClientHeights: scrollerClientHeights };\n };\n return SimpleScrollGrid;\n}(BaseComponent));\nSimpleScrollGrid.addStateEquality({\n scrollerClientWidths: isPropsEqual,\n scrollerClientHeights: isPropsEqual,\n});\nfunction getSectionByKey(sections, key) {\n for (var _i = 0, sections_1 = sections; _i < sections_1.length; _i++) {\n var section = sections_1[_i];\n if (section.key === key) {\n return section;\n }\n }\n return null;\n}\n\nvar EventRoot = /** @class */ (function (_super) {\n __extends(EventRoot, _super);\n function EventRoot() {\n var _this = _super !== null && _super.apply(this, arguments) || this;\n _this.elRef = createRef();\n return _this;\n }\n EventRoot.prototype.render = function () {\n var _a = this, props = _a.props, context = _a.context;\n var options = context.options;\n var seg = props.seg;\n var eventRange = seg.eventRange;\n var ui = eventRange.ui;\n var hookProps = {\n event: new EventApi(context, eventRange.def, eventRange.instance),\n view: context.viewApi,\n timeText: props.timeText,\n textColor: ui.textColor,\n backgroundColor: ui.backgroundColor,\n borderColor: ui.borderColor,\n isDraggable: !props.disableDragging && computeSegDraggable(seg, context),\n isStartResizable: !props.disableResizing && computeSegStartResizable(seg, context),\n isEndResizable: !props.disableResizing && computeSegEndResizable(seg),\n isMirror: Boolean(props.isDragging || props.isResizing || props.isDateSelecting),\n isStart: Boolean(seg.isStart),\n isEnd: Boolean(seg.isEnd),\n isPast: Boolean(props.isPast),\n isFuture: Boolean(props.isFuture),\n isToday: Boolean(props.isToday),\n isSelected: Boolean(props.isSelected),\n isDragging: Boolean(props.isDragging),\n isResizing: Boolean(props.isResizing),\n };\n var standardClassNames = getEventClassNames(hookProps).concat(ui.classNames);\n return (createElement(RenderHook, { hookProps: hookProps, classNames: options.eventClassNames, content: options.eventContent, defaultContent: props.defaultContent, didMount: options.eventDidMount, willUnmount: options.eventWillUnmount, elRef: this.elRef }, function (rootElRef, customClassNames, innerElRef, innerContent) { return props.children(rootElRef, standardClassNames.concat(customClassNames), innerElRef, innerContent, hookProps); }));\n };\n EventRoot.prototype.componentDidMount = function () {\n setElSeg(this.elRef.current, this.props.seg);\n };\n /*\n need to re-assign seg to the element if seg changes, even if the element is the same\n */\n EventRoot.prototype.componentDidUpdate = function (prevProps) {\n var seg = this.props.seg;\n if (seg !== prevProps.seg) {\n setElSeg(this.elRef.current, seg);\n }\n };\n return EventRoot;\n}(BaseComponent));\n\n// should not be a purecomponent\nvar StandardEvent = /** @class */ (function (_super) {\n __extends(StandardEvent, _super);\n function StandardEvent() {\n return _super !== null && _super.apply(this, arguments) || this;\n }\n StandardEvent.prototype.render = function () {\n var _a = this, props = _a.props, context = _a.context;\n var seg = props.seg;\n var timeFormat = context.options.eventTimeFormat || props.defaultTimeFormat;\n var timeText = buildSegTimeText(seg, timeFormat, context, props.defaultDisplayEventTime, props.defaultDisplayEventEnd);\n return (createElement(EventRoot, { seg: seg, timeText: timeText, disableDragging: props.disableDragging, disableResizing: props.disableResizing, defaultContent: props.defaultContent || renderInnerContent, isDragging: props.isDragging, isResizing: props.isResizing, isDateSelecting: props.isDateSelecting, isSelected: props.isSelected, isPast: props.isPast, isFuture: props.isFuture, isToday: props.isToday }, function (rootElRef, classNames, innerElRef, innerContent, hookProps) { return (createElement(\"a\", __assign({ className: props.extraClassNames.concat(classNames).join(' '), style: {\n borderColor: hookProps.borderColor,\n backgroundColor: hookProps.backgroundColor,\n }, ref: rootElRef }, getSegAnchorAttrs(seg)),\n createElement(\"div\", { className: \"fc-event-main\", ref: innerElRef, style: { color: hookProps.textColor } }, innerContent),\n hookProps.isStartResizable &&\n createElement(\"div\", { className: \"fc-event-resizer fc-event-resizer-start\" }),\n hookProps.isEndResizable &&\n createElement(\"div\", { className: \"fc-event-resizer fc-event-resizer-end\" }))); }));\n };\n return StandardEvent;\n}(BaseComponent));\nfunction renderInnerContent(innerProps) {\n return (createElement(\"div\", { className: \"fc-event-main-frame\" },\n innerProps.timeText && (createElement(\"div\", { className: \"fc-event-time\" }, innerProps.timeText)),\n createElement(\"div\", { className: \"fc-event-title-container\" },\n createElement(\"div\", { className: \"fc-event-title fc-sticky\" }, innerProps.event.title || createElement(Fragment, null, \"\\u00A0\")))));\n}\nfunction getSegAnchorAttrs(seg) {\n var url = seg.eventRange.def.url;\n return url ? { href: url } : {};\n}\n\nvar NowIndicatorRoot = function (props) { return (createElement(ViewContextType.Consumer, null, function (context) {\n var options = context.options;\n var hookProps = {\n isAxis: props.isAxis,\n date: context.dateEnv.toDate(props.date),\n view: context.viewApi,\n };\n return (createElement(RenderHook, { hookProps: hookProps, classNames: options.nowIndicatorClassNames, content: options.nowIndicatorContent, didMount: options.nowIndicatorDidMount, willUnmount: options.nowIndicatorWillUnmount }, props.children));\n})); };\n\nvar DAY_NUM_FORMAT = createFormatter({ day: 'numeric' });\nvar DayCellContent = /** @class */ (function (_super) {\n __extends(DayCellContent, _super);\n function DayCellContent() {\n return _super !== null && _super.apply(this, arguments) || this;\n }\n DayCellContent.prototype.render = function () {\n var _a = this, props = _a.props, context = _a.context;\n var options = context.options;\n var hookProps = refineDayCellHookProps({\n date: props.date,\n dateProfile: props.dateProfile,\n todayRange: props.todayRange,\n showDayNumber: props.showDayNumber,\n extraProps: props.extraHookProps,\n viewApi: context.viewApi,\n dateEnv: context.dateEnv,\n });\n return (createElement(ContentHook, { hookProps: hookProps, content: options.dayCellContent, defaultContent: props.defaultContent }, props.children));\n };\n return DayCellContent;\n}(BaseComponent));\nfunction refineDayCellHookProps(raw) {\n var date = raw.date, dateEnv = raw.dateEnv;\n var dayMeta = getDateMeta(date, raw.todayRange, null, raw.dateProfile);\n return __assign(__assign(__assign({ date: dateEnv.toDate(date), view: raw.viewApi }, dayMeta), { dayNumberText: raw.showDayNumber ? dateEnv.format(date, DAY_NUM_FORMAT) : '' }), raw.extraProps);\n}\n\nvar DayCellRoot = /** @class */ (function (_super) {\n __extends(DayCellRoot, _super);\n function DayCellRoot() {\n var _this = _super !== null && _super.apply(this, arguments) || this;\n _this.refineHookProps = memoizeObjArg(refineDayCellHookProps);\n _this.normalizeClassNames = buildClassNameNormalizer();\n return _this;\n }\n DayCellRoot.prototype.render = function () {\n var _a = this, props = _a.props, context = _a.context;\n var options = context.options;\n var hookProps = this.refineHookProps({\n date: props.date,\n dateProfile: props.dateProfile,\n todayRange: props.todayRange,\n showDayNumber: props.showDayNumber,\n extraProps: props.extraHookProps,\n viewApi: context.viewApi,\n dateEnv: context.dateEnv,\n });\n var classNames = getDayClassNames(hookProps, context.theme).concat(hookProps.isDisabled\n ? [] // don't use custom classNames if disabled\n : this.normalizeClassNames(options.dayCellClassNames, hookProps));\n var dataAttrs = hookProps.isDisabled ? {} : {\n 'data-date': formatDayString(props.date),\n };\n return (createElement(MountHook, { hookProps: hookProps, didMount: options.dayCellDidMount, willUnmount: options.dayCellWillUnmount, elRef: props.elRef }, function (rootElRef) { return props.children(rootElRef, classNames, dataAttrs, hookProps.isDisabled); }));\n };\n return DayCellRoot;\n}(BaseComponent));\n\nfunction renderFill(fillType) {\n return (createElement(\"div\", { className: \"fc-\" + fillType }));\n}\nvar BgEvent = function (props) { return (createElement(EventRoot, { defaultContent: renderInnerContent$1, seg: props.seg /* uselesss i think */, timeText: \"\", disableDragging: true, disableResizing: true, isDragging: false, isResizing: false, isDateSelecting: false, isSelected: false, isPast: props.isPast, isFuture: props.isFuture, isToday: props.isToday }, function (rootElRef, classNames, innerElRef, innerContent, hookProps) { return (createElement(\"div\", { ref: rootElRef, className: ['fc-bg-event'].concat(classNames).join(' '), style: {\n backgroundColor: hookProps.backgroundColor,\n } }, innerContent)); })); };\nfunction renderInnerContent$1(props) {\n var title = props.event.title;\n return title && (createElement(\"div\", { className: \"fc-event-title\" }, props.event.title));\n}\n\nvar WeekNumberRoot = function (props) { return (createElement(ViewContextType.Consumer, null, function (context) {\n var dateEnv = context.dateEnv, options = context.options;\n var date = props.date;\n var format = options.weekNumberFormat || props.defaultFormat;\n var num = dateEnv.computeWeekNumber(date); // TODO: somehow use for formatting as well?\n var text = dateEnv.format(date, format);\n var hookProps = { num: num, text: text, date: date };\n return (createElement(RenderHook, { hookProps: hookProps, classNames: options.weekNumberClassNames, content: options.weekNumberContent, defaultContent: renderInner$1, didMount: options.weekNumberDidMount, willUnmount: options.weekNumberWillUnmount }, props.children));\n})); };\nfunction renderInner$1(innerProps) {\n return innerProps.text;\n}\n\n// exports\n// --------------------------------------------------------------------------------------------------\nvar version = '5.5.1'; // important to type it, so .d.ts has generic string\n\nexport { BASE_OPTION_DEFAULTS, BASE_OPTION_REFINERS, BaseComponent, BgEvent, CalendarApi, CalendarContent, CalendarDataManager, CalendarDataProvider, CalendarRoot, ContentHook, CustomContentRenderContext, DateComponent, DateEnv, DateProfileGenerator, DayCellContent, DayCellRoot, DayHeader, DaySeriesModel, DayTableModel, DelayedRunner, ElementDragging, ElementScrollController, Emitter, EventApi, EventRoot, EventSourceApi, Interaction, MountHook, NamedTimeZoneImpl, NowIndicatorRoot, NowTimer, PositionCache, RefMap, RenderHook, ScrollController, ScrollResponder, Scroller, SimpleScrollGrid, Slicer, Splitter, StandardEvent, TableDateCell, TableDowCell, Theme, ViewApi, ViewContextType, ViewRoot, WeekNumberRoot, WindowScrollController, addDays, addDurations, addMs, addWeeks, allowContextMenu, allowSelection, applyMutationToEventStore, applyStyle, applyStyleProp, asCleanDays, asRoughMinutes, asRoughMs, asRoughSeconds, buildClassNameNormalizer, buildEventApis, buildEventRangeKey, buildHashFromArray, buildNavLinkData, buildSegCompareObj, buildSegTimeText, collectFromHash, combineEventUis, compareByFieldSpec, compareByFieldSpecs, compareNumbers, compareObjs, computeEdges, computeFallbackHeaderFormat, computeHeightAndMargins, computeInnerRect, computeRect, computeSegDraggable, computeSegEndResizable, computeSegStartResizable, computeShrinkWidth, computeSmallestCellWidth, computeVisibleDayRange, config, constrainPoint, createDuration, createEmptyEventStore, createEventInstance, createEventUi, createFormatter, createPlugin, diffDates, diffDayAndTime, diffDays, diffPoints, diffWeeks, diffWholeDays, diffWholeWeeks, disableCursor, elementClosest, elementMatches, enableCursor, eventTupleToStore, filterEventStoreDefs, filterHash, findDirectChildren, findElements, flexibleCompare, formatDate, formatDayString, formatIsoTimeString, formatRange, getAllowYScrolling, getCanVGrowWithinCell, getClippingParents, getDateMeta, getDayClassNames, getDefaultEventEnd, getElSeg, getEventClassNames, getIsRtlScrollbarOnLeft, getRectCenter, getRelevantEvents, getScrollGridClassNames, getScrollbarWidths, getSectionClassNames, getSectionHasLiquidHeight, getSegMeta, getSlotClassNames, getStickyFooterScrollbar, getStickyHeaderDates, getUnequalProps, globalLocales, globalPlugins, greatestDurationDenominator, guid, hasBgRendering, hasShrinkWidth, identity, interactionSettingsStore, interactionSettingsToStore, intersectRanges, intersectRects, isArraysEqual, isColPropsEqual, isDateSpansEqual, isInt, isInteractionValid, isMultiDayRange, isPropsEqual, isPropsValid, isValidDate, listenBySelector, mapHash, memoize, memoizeArraylike, memoizeHashlike, memoizeObjArg, mergeEventStores, multiplyDuration, padStart, parseBusinessHours, parseClassNames, parseDragMeta, parseEventDef, parseFieldSpecs, parse as parseMarker, pointInsideRect, preventContextMenu, preventDefault, preventSelection, rangeContainsMarker, rangeContainsRange, rangesEqual, rangesIntersect, refineEventDef, refineProps, removeElement, removeExact, renderChunkContent, renderFill, renderMicroColGroup, renderScrollShim, requestJson, sanitizeShrinkWidth, setElSeg, setRef, sliceEventStore, sliceEvents, sortEventSegs, startOfDay, translateRect, triggerDateSelect, unpromisify, version, whenTransitionDone, wholeDivideDurations };\n//# sourceMappingURL=main.js.map\n","//! moment.js locale configuration\n//! locale : Filipino [fil]\n//! author : Dan Hagman : https://github.com/hagmandan\n//! author : Matthew Co : https://github.com/matthewdeeco\n\n;(function (global, factory) {\n typeof exports === 'object' && typeof module !== 'undefined'\n && typeof require === 'function' ? factory(require('../moment')) :\n typeof define === 'function' && define.amd ? define(['../moment'], factory) :\n factory(global.moment)\n}(this, (function (moment) { 'use strict';\n\n //! moment.js locale configuration\n\n var fil = moment.defineLocale('fil', {\n months: 'Enero_Pebrero_Marso_Abril_Mayo_Hunyo_Hulyo_Agosto_Setyembre_Oktubre_Nobyembre_Disyembre'.split(\n '_'\n ),\n monthsShort: 'Ene_Peb_Mar_Abr_May_Hun_Hul_Ago_Set_Okt_Nob_Dis'.split('_'),\n weekdays: 'Linggo_Lunes_Martes_Miyerkules_Huwebes_Biyernes_Sabado'.split(\n '_'\n ),\n weekdaysShort: 'Lin_Lun_Mar_Miy_Huw_Biy_Sab'.split('_'),\n weekdaysMin: 'Li_Lu_Ma_Mi_Hu_Bi_Sab'.split('_'),\n longDateFormat: {\n LT: 'HH:mm',\n LTS: 'HH:mm:ss',\n L: 'MM/D/YYYY',\n LL: 'MMMM D, YYYY',\n LLL: 'MMMM D, YYYY HH:mm',\n LLLL: 'dddd, MMMM DD, YYYY HH:mm',\n },\n calendar: {\n sameDay: 'LT [ngayong araw]',\n nextDay: '[Bukas ng] LT',\n nextWeek: 'LT [sa susunod na] dddd',\n lastDay: 'LT [kahapon]',\n lastWeek: 'LT [noong nakaraang] dddd',\n sameElse: 'L',\n },\n relativeTime: {\n future: 'sa loob ng %s',\n past: '%s ang nakalipas',\n s: 'ilang segundo',\n ss: '%d segundo',\n m: 'isang minuto',\n mm: '%d minuto',\n h: 'isang oras',\n hh: '%d oras',\n d: 'isang araw',\n dd: '%d araw',\n M: 'isang buwan',\n MM: '%d buwan',\n y: 'isang taon',\n yy: '%d taon',\n },\n dayOfMonthOrdinalParse: /\\d{1,2}/,\n ordinal: function (number) {\n return number;\n },\n week: {\n dow: 1, // Monday is the first day of the week.\n doy: 4, // The week that contains Jan 4th is the first week of the year.\n },\n });\n\n return fil;\n\n})));\n","//! moment.js locale configuration\n//! locale : Armenian [hy-am]\n//! author : Armendarabyan : https://github.com/armendarabyan\n\n;(function (global, factory) {\n typeof exports === 'object' && typeof module !== 'undefined'\n && typeof require === 'function' ? factory(require('../moment')) :\n typeof define === 'function' && define.amd ? define(['../moment'], factory) :\n factory(global.moment)\n}(this, (function (moment) { 'use strict';\n\n //! moment.js locale configuration\n\n var hyAm = moment.defineLocale('hy-am', {\n months: {\n format: 'հունվարի_փետրվարի_մարտի_ապրիլի_մայիսի_հունիսի_հուլիսի_օգոստոսի_սեպտեմբերի_հոկտեմբերի_նոյեմբերի_դեկտեմբերի'.split(\n '_'\n ),\n standalone: 'հունվար_փետրվար_մարտ_ապրիլ_մայիս_հունիս_հուլիս_օգոստոս_սեպտեմբեր_հոկտեմբեր_նոյեմբեր_դեկտեմբեր'.split(\n '_'\n ),\n },\n monthsShort: 'հնվ_փտր_մրտ_ապր_մյս_հնս_հլս_օգս_սպտ_հկտ_նմբ_դկտ'.split('_'),\n weekdays: 'կիրակի_երկուշաբթի_երեքշաբթի_չորեքշաբթի_հինգշաբթի_ուրբաթ_շաբաթ'.split(\n '_'\n ),\n weekdaysShort: 'կրկ_երկ_երք_չրք_հնգ_ուրբ_շբթ'.split('_'),\n weekdaysMin: 'կրկ_երկ_երք_չրք_հնգ_ուրբ_շբթ'.split('_'),\n longDateFormat: {\n LT: 'HH:mm',\n LTS: 'HH:mm:ss',\n L: 'DD.MM.YYYY',\n LL: 'D MMMM YYYY թ.',\n LLL: 'D MMMM YYYY թ., HH:mm',\n LLLL: 'dddd, D MMMM YYYY թ., HH:mm',\n },\n calendar: {\n sameDay: '[այսօր] LT',\n nextDay: '[վաղը] LT',\n lastDay: '[երեկ] LT',\n nextWeek: function () {\n return 'dddd [օրը ժամը] LT';\n },\n lastWeek: function () {\n return '[անցած] dddd [օրը ժամը] LT';\n },\n sameElse: 'L',\n },\n relativeTime: {\n future: '%s հետո',\n past: '%s առաջ',\n s: 'մի քանի վայրկյան',\n ss: '%d վայրկյան',\n m: 'րոպե',\n mm: '%d րոպե',\n h: 'ժամ',\n hh: '%d ժամ',\n d: 'օր',\n dd: '%d օր',\n M: 'ամիս',\n MM: '%d ամիս',\n y: 'տարի',\n yy: '%d տարի',\n },\n meridiemParse: /գիշերվա|առավոտվա|ցերեկվա|երեկոյան/,\n isPM: function (input) {\n return /^(ցերեկվա|երեկոյան)$/.test(input);\n },\n meridiem: function (hour) {\n if (hour < 4) {\n return 'գիշերվա';\n } else if (hour < 12) {\n return 'առավոտվա';\n } else if (hour < 17) {\n return 'ցերեկվա';\n } else {\n return 'երեկոյան';\n }\n },\n dayOfMonthOrdinalParse: /\\d{1,2}|\\d{1,2}-(ին|րդ)/,\n ordinal: function (number, period) {\n switch (period) {\n case 'DDD':\n case 'w':\n case 'W':\n case 'DDDo':\n if (number === 1) {\n return number + '-ին';\n }\n return number + '-րդ';\n default:\n return number;\n }\n },\n week: {\n dow: 1, // Monday is the first day of the week.\n doy: 7, // The week that contains Jan 7th is the first week of the year.\n },\n });\n\n return hyAm;\n\n})));\n","/**\n * @license Angular v11.1.0\n * (c) 2010-2020 Google LLC. https://angular.io/\n * License: MIT\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nvar TagContentType;\n(function (TagContentType) {\n TagContentType[TagContentType[\"RAW_TEXT\"] = 0] = \"RAW_TEXT\";\n TagContentType[TagContentType[\"ESCAPABLE_RAW_TEXT\"] = 1] = \"ESCAPABLE_RAW_TEXT\";\n TagContentType[TagContentType[\"PARSABLE_DATA\"] = 2] = \"PARSABLE_DATA\";\n})(TagContentType || (TagContentType = {}));\nfunction splitNsName(elementName) {\n if (elementName[0] != ':') {\n return [null, elementName];\n }\n const colonIndex = elementName.indexOf(':', 1);\n if (colonIndex == -1) {\n throw new Error(`Unsupported format \"${elementName}\" expecting \":namespace:name\"`);\n }\n return [elementName.slice(1, colonIndex), elementName.slice(colonIndex + 1)];\n}\n// `` tags work the same regardless the namespace\nfunction isNgContainer(tagName) {\n return splitNsName(tagName)[1] === 'ng-container';\n}\n// `` tags work the same regardless the namespace\nfunction isNgContent(tagName) {\n return splitNsName(tagName)[1] === 'ng-content';\n}\n// `` tags work the same regardless the namespace\nfunction isNgTemplate(tagName) {\n return splitNsName(tagName)[1] === 'ng-template';\n}\nfunction getNsPrefix(fullName) {\n return fullName === null ? null : splitNsName(fullName)[0];\n}\nfunction mergeNsAndName(prefix, localName) {\n return prefix ? `:${prefix}:${localName}` : localName;\n}\n// see https://www.w3.org/TR/html51/syntax.html#named-character-references\n// see https://html.spec.whatwg.org/multipage/entities.json\n// This list is not exhaustive to keep the compiler footprint low.\n// The `{` / `ƫ` syntax should be used when the named character reference does not\n// exist.\nconst NAMED_ENTITIES = {\n 'Aacute': '\\u00C1',\n 'aacute': '\\u00E1',\n 'Acirc': '\\u00C2',\n 'acirc': '\\u00E2',\n 'acute': '\\u00B4',\n 'AElig': '\\u00C6',\n 'aelig': '\\u00E6',\n 'Agrave': '\\u00C0',\n 'agrave': '\\u00E0',\n 'alefsym': '\\u2135',\n 'Alpha': '\\u0391',\n 'alpha': '\\u03B1',\n 'amp': '&',\n 'and': '\\u2227',\n 'ang': '\\u2220',\n 'apos': '\\u0027',\n 'Aring': '\\u00C5',\n 'aring': '\\u00E5',\n 'asymp': '\\u2248',\n 'Atilde': '\\u00C3',\n 'atilde': '\\u00E3',\n 'Auml': '\\u00C4',\n 'auml': '\\u00E4',\n 'bdquo': '\\u201E',\n 'Beta': '\\u0392',\n 'beta': '\\u03B2',\n 'brvbar': '\\u00A6',\n 'bull': '\\u2022',\n 'cap': '\\u2229',\n 'Ccedil': '\\u00C7',\n 'ccedil': '\\u00E7',\n 'cedil': '\\u00B8',\n 'cent': '\\u00A2',\n 'Chi': '\\u03A7',\n 'chi': '\\u03C7',\n 'circ': '\\u02C6',\n 'clubs': '\\u2663',\n 'cong': '\\u2245',\n 'copy': '\\u00A9',\n 'crarr': '\\u21B5',\n 'cup': '\\u222A',\n 'curren': '\\u00A4',\n 'dagger': '\\u2020',\n 'Dagger': '\\u2021',\n 'darr': '\\u2193',\n 'dArr': '\\u21D3',\n 'deg': '\\u00B0',\n 'Delta': '\\u0394',\n 'delta': '\\u03B4',\n 'diams': '\\u2666',\n 'divide': '\\u00F7',\n 'Eacute': '\\u00C9',\n 'eacute': '\\u00E9',\n 'Ecirc': '\\u00CA',\n 'ecirc': '\\u00EA',\n 'Egrave': '\\u00C8',\n 'egrave': '\\u00E8',\n 'empty': '\\u2205',\n 'emsp': '\\u2003',\n 'ensp': '\\u2002',\n 'Epsilon': '\\u0395',\n 'epsilon': '\\u03B5',\n 'equiv': '\\u2261',\n 'Eta': '\\u0397',\n 'eta': '\\u03B7',\n 'ETH': '\\u00D0',\n 'eth': '\\u00F0',\n 'Euml': '\\u00CB',\n 'euml': '\\u00EB',\n 'euro': '\\u20AC',\n 'exist': '\\u2203',\n 'fnof': '\\u0192',\n 'forall': '\\u2200',\n 'frac12': '\\u00BD',\n 'frac14': '\\u00BC',\n 'frac34': '\\u00BE',\n 'frasl': '\\u2044',\n 'Gamma': '\\u0393',\n 'gamma': '\\u03B3',\n 'ge': '\\u2265',\n 'gt': '>',\n 'harr': '\\u2194',\n 'hArr': '\\u21D4',\n 'hearts': '\\u2665',\n 'hellip': '\\u2026',\n 'Iacute': '\\u00CD',\n 'iacute': '\\u00ED',\n 'Icirc': '\\u00CE',\n 'icirc': '\\u00EE',\n 'iexcl': '\\u00A1',\n 'Igrave': '\\u00CC',\n 'igrave': '\\u00EC',\n 'image': '\\u2111',\n 'infin': '\\u221E',\n 'int': '\\u222B',\n 'Iota': '\\u0399',\n 'iota': '\\u03B9',\n 'iquest': '\\u00BF',\n 'isin': '\\u2208',\n 'Iuml': '\\u00CF',\n 'iuml': '\\u00EF',\n 'Kappa': '\\u039A',\n 'kappa': '\\u03BA',\n 'Lambda': '\\u039B',\n 'lambda': '\\u03BB',\n 'lang': '\\u27E8',\n 'laquo': '\\u00AB',\n 'larr': '\\u2190',\n 'lArr': '\\u21D0',\n 'lceil': '\\u2308',\n 'ldquo': '\\u201C',\n 'le': '\\u2264',\n 'lfloor': '\\u230A',\n 'lowast': '\\u2217',\n 'loz': '\\u25CA',\n 'lrm': '\\u200E',\n 'lsaquo': '\\u2039',\n 'lsquo': '\\u2018',\n 'lt': '<',\n 'macr': '\\u00AF',\n 'mdash': '\\u2014',\n 'micro': '\\u00B5',\n 'middot': '\\u00B7',\n 'minus': '\\u2212',\n 'Mu': '\\u039C',\n 'mu': '\\u03BC',\n 'nabla': '\\u2207',\n 'nbsp': '\\u00A0',\n 'ndash': '\\u2013',\n 'ne': '\\u2260',\n 'ni': '\\u220B',\n 'not': '\\u00AC',\n 'notin': '\\u2209',\n 'nsub': '\\u2284',\n 'Ntilde': '\\u00D1',\n 'ntilde': '\\u00F1',\n 'Nu': '\\u039D',\n 'nu': '\\u03BD',\n 'Oacute': '\\u00D3',\n 'oacute': '\\u00F3',\n 'Ocirc': '\\u00D4',\n 'ocirc': '\\u00F4',\n 'OElig': '\\u0152',\n 'oelig': '\\u0153',\n 'Ograve': '\\u00D2',\n 'ograve': '\\u00F2',\n 'oline': '\\u203E',\n 'Omega': '\\u03A9',\n 'omega': '\\u03C9',\n 'Omicron': '\\u039F',\n 'omicron': '\\u03BF',\n 'oplus': '\\u2295',\n 'or': '\\u2228',\n 'ordf': '\\u00AA',\n 'ordm': '\\u00BA',\n 'Oslash': '\\u00D8',\n 'oslash': '\\u00F8',\n 'Otilde': '\\u00D5',\n 'otilde': '\\u00F5',\n 'otimes': '\\u2297',\n 'Ouml': '\\u00D6',\n 'ouml': '\\u00F6',\n 'para': '\\u00B6',\n 'permil': '\\u2030',\n 'perp': '\\u22A5',\n 'Phi': '\\u03A6',\n 'phi': '\\u03C6',\n 'Pi': '\\u03A0',\n 'pi': '\\u03C0',\n 'piv': '\\u03D6',\n 'plusmn': '\\u00B1',\n 'pound': '\\u00A3',\n 'prime': '\\u2032',\n 'Prime': '\\u2033',\n 'prod': '\\u220F',\n 'prop': '\\u221D',\n 'Psi': '\\u03A8',\n 'psi': '\\u03C8',\n 'quot': '\\u0022',\n 'radic': '\\u221A',\n 'rang': '\\u27E9',\n 'raquo': '\\u00BB',\n 'rarr': '\\u2192',\n 'rArr': '\\u21D2',\n 'rceil': '\\u2309',\n 'rdquo': '\\u201D',\n 'real': '\\u211C',\n 'reg': '\\u00AE',\n 'rfloor': '\\u230B',\n 'Rho': '\\u03A1',\n 'rho': '\\u03C1',\n 'rlm': '\\u200F',\n 'rsaquo': '\\u203A',\n 'rsquo': '\\u2019',\n 'sbquo': '\\u201A',\n 'Scaron': '\\u0160',\n 'scaron': '\\u0161',\n 'sdot': '\\u22C5',\n 'sect': '\\u00A7',\n 'shy': '\\u00AD',\n 'Sigma': '\\u03A3',\n 'sigma': '\\u03C3',\n 'sigmaf': '\\u03C2',\n 'sim': '\\u223C',\n 'spades': '\\u2660',\n 'sub': '\\u2282',\n 'sube': '\\u2286',\n 'sum': '\\u2211',\n 'sup': '\\u2283',\n 'sup1': '\\u00B9',\n 'sup2': '\\u00B2',\n 'sup3': '\\u00B3',\n 'supe': '\\u2287',\n 'szlig': '\\u00DF',\n 'Tau': '\\u03A4',\n 'tau': '\\u03C4',\n 'there4': '\\u2234',\n 'Theta': '\\u0398',\n 'theta': '\\u03B8',\n 'thetasym': '\\u03D1',\n 'thinsp': '\\u2009',\n 'THORN': '\\u00DE',\n 'thorn': '\\u00FE',\n 'tilde': '\\u02DC',\n 'times': '\\u00D7',\n 'trade': '\\u2122',\n 'Uacute': '\\u00DA',\n 'uacute': '\\u00FA',\n 'uarr': '\\u2191',\n 'uArr': '\\u21D1',\n 'Ucirc': '\\u00DB',\n 'ucirc': '\\u00FB',\n 'Ugrave': '\\u00D9',\n 'ugrave': '\\u00F9',\n 'uml': '\\u00A8',\n 'upsih': '\\u03D2',\n 'Upsilon': '\\u03A5',\n 'upsilon': '\\u03C5',\n 'Uuml': '\\u00DC',\n 'uuml': '\\u00FC',\n 'weierp': '\\u2118',\n 'Xi': '\\u039E',\n 'xi': '\\u03BE',\n 'Yacute': '\\u00DD',\n 'yacute': '\\u00FD',\n 'yen': '\\u00A5',\n 'yuml': '\\u00FF',\n 'Yuml': '\\u0178',\n 'Zeta': '\\u0396',\n 'zeta': '\\u03B6',\n 'zwj': '\\u200D',\n 'zwnj': '\\u200C',\n};\n// The &ngsp; pseudo-entity is denoting a space. see:\n// https://github.com/dart-lang/angular/blob/0bb611387d29d65b5af7f9d2515ab571fd3fbee4/_tests/test/compiler/preserve_whitespace_test.dart\nconst NGSP_UNICODE = '\\uE500';\nNAMED_ENTITIES['ngsp'] = NGSP_UNICODE;\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass HtmlTagDefinition {\n constructor({ closedByChildren, implicitNamespacePrefix, contentType = TagContentType.PARSABLE_DATA, closedByParent = false, isVoid = false, ignoreFirstLf = false, preventNamespaceInheritance = false } = {}) {\n this.closedByChildren = {};\n this.closedByParent = false;\n this.canSelfClose = false;\n if (closedByChildren && closedByChildren.length > 0) {\n closedByChildren.forEach(tagName => this.closedByChildren[tagName] = true);\n }\n this.isVoid = isVoid;\n this.closedByParent = closedByParent || isVoid;\n this.implicitNamespacePrefix = implicitNamespacePrefix || null;\n this.contentType = contentType;\n this.ignoreFirstLf = ignoreFirstLf;\n this.preventNamespaceInheritance = preventNamespaceInheritance;\n }\n isClosedByChild(name) {\n return this.isVoid || name.toLowerCase() in this.closedByChildren;\n }\n getContentType(prefix) {\n if (typeof this.contentType === 'object') {\n const overrideType = prefix == null ? undefined : this.contentType[prefix];\n return overrideType !== null && overrideType !== void 0 ? overrideType : this.contentType.default;\n }\n return this.contentType;\n }\n}\nlet _DEFAULT_TAG_DEFINITION;\n// see https://www.w3.org/TR/html51/syntax.html#optional-tags\n// This implementation does not fully conform to the HTML5 spec.\nlet TAG_DEFINITIONS;\nfunction getHtmlTagDefinition(tagName) {\n var _a, _b;\n if (!TAG_DEFINITIONS) {\n _DEFAULT_TAG_DEFINITION = new HtmlTagDefinition();\n TAG_DEFINITIONS = {\n 'base': new HtmlTagDefinition({ isVoid: true }),\n 'meta': new HtmlTagDefinition({ isVoid: true }),\n 'area': new HtmlTagDefinition({ isVoid: true }),\n 'embed': new HtmlTagDefinition({ isVoid: true }),\n 'link': new HtmlTagDefinition({ isVoid: true }),\n 'img': new HtmlTagDefinition({ isVoid: true }),\n 'input': new HtmlTagDefinition({ isVoid: true }),\n 'param': new HtmlTagDefinition({ isVoid: true }),\n 'hr': new HtmlTagDefinition({ isVoid: true }),\n 'br': new HtmlTagDefinition({ isVoid: true }),\n 'source': new HtmlTagDefinition({ isVoid: true }),\n 'track': new HtmlTagDefinition({ isVoid: true }),\n 'wbr': new HtmlTagDefinition({ isVoid: true }),\n 'p': new HtmlTagDefinition({\n closedByChildren: [\n 'address', 'article', 'aside', 'blockquote', 'div', 'dl', 'fieldset',\n 'footer', 'form', 'h1', 'h2', 'h3', 'h4', 'h5',\n 'h6', 'header', 'hgroup', 'hr', 'main', 'nav', 'ol',\n 'p', 'pre', 'section', 'table', 'ul'\n ],\n closedByParent: true\n }),\n 'thead': new HtmlTagDefinition({ closedByChildren: ['tbody', 'tfoot'] }),\n 'tbody': new HtmlTagDefinition({ closedByChildren: ['tbody', 'tfoot'], closedByParent: true }),\n 'tfoot': new HtmlTagDefinition({ closedByChildren: ['tbody'], closedByParent: true }),\n 'tr': new HtmlTagDefinition({ closedByChildren: ['tr'], closedByParent: true }),\n 'td': new HtmlTagDefinition({ closedByChildren: ['td', 'th'], closedByParent: true }),\n 'th': new HtmlTagDefinition({ closedByChildren: ['td', 'th'], closedByParent: true }),\n 'col': new HtmlTagDefinition({ isVoid: true }),\n 'svg': new HtmlTagDefinition({ implicitNamespacePrefix: 'svg' }),\n 'foreignObject': new HtmlTagDefinition({\n // Usually the implicit namespace here would be redundant since it will be inherited from\n // the parent `svg`, but we have to do it for `foreignObject`, because the way the parser\n // works is that the parent node of an end tag is its own start tag which means that\n // the `preventNamespaceInheritance` on `foreignObject` would have it default to the\n // implicit namespace which is `html`, unless specified otherwise.\n implicitNamespacePrefix: 'svg',\n // We want to prevent children of foreignObject from inheriting its namespace, because\n // the point of the element is to allow nodes from other namespaces to be inserted.\n preventNamespaceInheritance: true,\n }),\n 'math': new HtmlTagDefinition({ implicitNamespacePrefix: 'math' }),\n 'li': new HtmlTagDefinition({ closedByChildren: ['li'], closedByParent: true }),\n 'dt': new HtmlTagDefinition({ closedByChildren: ['dt', 'dd'] }),\n 'dd': new HtmlTagDefinition({ closedByChildren: ['dt', 'dd'], closedByParent: true }),\n 'rb': new HtmlTagDefinition({ closedByChildren: ['rb', 'rt', 'rtc', 'rp'], closedByParent: true }),\n 'rt': new HtmlTagDefinition({ closedByChildren: ['rb', 'rt', 'rtc', 'rp'], closedByParent: true }),\n 'rtc': new HtmlTagDefinition({ closedByChildren: ['rb', 'rtc', 'rp'], closedByParent: true }),\n 'rp': new HtmlTagDefinition({ closedByChildren: ['rb', 'rt', 'rtc', 'rp'], closedByParent: true }),\n 'optgroup': new HtmlTagDefinition({ closedByChildren: ['optgroup'], closedByParent: true }),\n 'option': new HtmlTagDefinition({ closedByChildren: ['option', 'optgroup'], closedByParent: true }),\n 'pre': new HtmlTagDefinition({ ignoreFirstLf: true }),\n 'listing': new HtmlTagDefinition({ ignoreFirstLf: true }),\n 'style': new HtmlTagDefinition({ contentType: TagContentType.RAW_TEXT }),\n 'script': new HtmlTagDefinition({ contentType: TagContentType.RAW_TEXT }),\n 'title': new HtmlTagDefinition({\n // The browser supports two separate `title` tags which have to use\n // a different content type: `HTMLTitleElement` and `SVGTitleElement`\n contentType: { default: TagContentType.ESCAPABLE_RAW_TEXT, svg: TagContentType.PARSABLE_DATA }\n }),\n 'textarea': new HtmlTagDefinition({ contentType: TagContentType.ESCAPABLE_RAW_TEXT, ignoreFirstLf: true }),\n };\n }\n // We have to make both a case-sensitive and a case-insesitive lookup, because\n // HTML tag names are case insensitive, whereas some SVG tags are case sensitive.\n return (_b = (_a = TAG_DEFINITIONS[tagName]) !== null && _a !== void 0 ? _a : TAG_DEFINITIONS[tagName.toLowerCase()]) !== null && _b !== void 0 ? _b : _DEFAULT_TAG_DEFINITION;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst _SELECTOR_REGEXP = new RegExp('(\\\\:not\\\\()|' + // 1: \":not(\"\n '(([\\\\.\\\\#]?)[-\\\\w]+)|' + // 2: \"tag\"; 3: \".\"/\"#\";\n // \"-\" should appear first in the regexp below as FF31 parses \"[.-\\w]\" as a range\n // 4: attribute; 5: attribute_string; 6: attribute_value\n '(?:\\\\[([-.\\\\w*]+)(?:=([\\\"\\']?)([^\\\\]\\\"\\']*)\\\\5)?\\\\])|' + // \"[name]\", \"[name=value]\",\n // \"[name=\"value\"]\",\n // \"[name='value']\"\n '(\\\\))|' + // 7: \")\"\n '(\\\\s*,\\\\s*)', // 8: \",\"\n'g');\n/**\n * A css selector contains an element name,\n * css classes and attribute/value pairs with the purpose\n * of selecting subsets out of them.\n */\nclass CssSelector {\n constructor() {\n this.element = null;\n this.classNames = [];\n /**\n * The selectors are encoded in pairs where:\n * - even locations are attribute names\n * - odd locations are attribute values.\n *\n * Example:\n * Selector: `[key1=value1][key2]` would parse to:\n * ```\n * ['key1', 'value1', 'key2', '']\n * ```\n */\n this.attrs = [];\n this.notSelectors = [];\n }\n static parse(selector) {\n const results = [];\n const _addResult = (res, cssSel) => {\n if (cssSel.notSelectors.length > 0 && !cssSel.element && cssSel.classNames.length == 0 &&\n cssSel.attrs.length == 0) {\n cssSel.element = '*';\n }\n res.push(cssSel);\n };\n let cssSelector = new CssSelector();\n let match;\n let current = cssSelector;\n let inNot = false;\n _SELECTOR_REGEXP.lastIndex = 0;\n while (match = _SELECTOR_REGEXP.exec(selector)) {\n if (match[1 /* NOT */]) {\n if (inNot) {\n throw new Error('Nesting :not in a selector is not allowed');\n }\n inNot = true;\n current = new CssSelector();\n cssSelector.notSelectors.push(current);\n }\n const tag = match[2 /* TAG */];\n if (tag) {\n const prefix = match[3 /* PREFIX */];\n if (prefix === '#') {\n // #hash\n current.addAttribute('id', tag.substr(1));\n }\n else if (prefix === '.') {\n // Class\n current.addClassName(tag.substr(1));\n }\n else {\n // Element\n current.setElement(tag);\n }\n }\n const attribute = match[4 /* ATTRIBUTE */];\n if (attribute) {\n current.addAttribute(attribute, match[6 /* ATTRIBUTE_VALUE */]);\n }\n if (match[7 /* NOT_END */]) {\n inNot = false;\n current = cssSelector;\n }\n if (match[8 /* SEPARATOR */]) {\n if (inNot) {\n throw new Error('Multiple selectors in :not are not supported');\n }\n _addResult(results, cssSelector);\n cssSelector = current = new CssSelector();\n }\n }\n _addResult(results, cssSelector);\n return results;\n }\n isElementSelector() {\n return this.hasElementSelector() && this.classNames.length == 0 && this.attrs.length == 0 &&\n this.notSelectors.length === 0;\n }\n hasElementSelector() {\n return !!this.element;\n }\n setElement(element = null) {\n this.element = element;\n }\n /** Gets a template string for an element that matches the selector. */\n getMatchingElementTemplate() {\n const tagName = this.element || 'div';\n const classAttr = this.classNames.length > 0 ? ` class=\"${this.classNames.join(' ')}\"` : '';\n let attrs = '';\n for (let i = 0; i < this.attrs.length; i += 2) {\n const attrName = this.attrs[i];\n const attrValue = this.attrs[i + 1] !== '' ? `=\"${this.attrs[i + 1]}\"` : '';\n attrs += ` ${attrName}${attrValue}`;\n }\n return getHtmlTagDefinition(tagName).isVoid ? `<${tagName}${classAttr}${attrs}/>` :\n `<${tagName}${classAttr}${attrs}>`;\n }\n getAttrs() {\n const result = [];\n if (this.classNames.length > 0) {\n result.push('class', this.classNames.join(' '));\n }\n return result.concat(this.attrs);\n }\n addAttribute(name, value = '') {\n this.attrs.push(name, value && value.toLowerCase() || '');\n }\n addClassName(name) {\n this.classNames.push(name.toLowerCase());\n }\n toString() {\n let res = this.element || '';\n if (this.classNames) {\n this.classNames.forEach(klass => res += `.${klass}`);\n }\n if (this.attrs) {\n for (let i = 0; i < this.attrs.length; i += 2) {\n const name = this.attrs[i];\n const value = this.attrs[i + 1];\n res += `[${name}${value ? '=' + value : ''}]`;\n }\n }\n this.notSelectors.forEach(notSelector => res += `:not(${notSelector})`);\n return res;\n }\n}\n/**\n * Reads a list of CssSelectors and allows to calculate which ones\n * are contained in a given CssSelector.\n */\nclass SelectorMatcher {\n constructor() {\n this._elementMap = new Map();\n this._elementPartialMap = new Map();\n this._classMap = new Map();\n this._classPartialMap = new Map();\n this._attrValueMap = new Map();\n this._attrValuePartialMap = new Map();\n this._listContexts = [];\n }\n static createNotMatcher(notSelectors) {\n const notMatcher = new SelectorMatcher();\n notMatcher.addSelectables(notSelectors, null);\n return notMatcher;\n }\n addSelectables(cssSelectors, callbackCtxt) {\n let listContext = null;\n if (cssSelectors.length > 1) {\n listContext = new SelectorListContext(cssSelectors);\n this._listContexts.push(listContext);\n }\n for (let i = 0; i < cssSelectors.length; i++) {\n this._addSelectable(cssSelectors[i], callbackCtxt, listContext);\n }\n }\n /**\n * Add an object that can be found later on by calling `match`.\n * @param cssSelector A css selector\n * @param callbackCtxt An opaque object that will be given to the callback of the `match` function\n */\n _addSelectable(cssSelector, callbackCtxt, listContext) {\n let matcher = this;\n const element = cssSelector.element;\n const classNames = cssSelector.classNames;\n const attrs = cssSelector.attrs;\n const selectable = new SelectorContext(cssSelector, callbackCtxt, listContext);\n if (element) {\n const isTerminal = attrs.length === 0 && classNames.length === 0;\n if (isTerminal) {\n this._addTerminal(matcher._elementMap, element, selectable);\n }\n else {\n matcher = this._addPartial(matcher._elementPartialMap, element);\n }\n }\n if (classNames) {\n for (let i = 0; i < classNames.length; i++) {\n const isTerminal = attrs.length === 0 && i === classNames.length - 1;\n const className = classNames[i];\n if (isTerminal) {\n this._addTerminal(matcher._classMap, className, selectable);\n }\n else {\n matcher = this._addPartial(matcher._classPartialMap, className);\n }\n }\n }\n if (attrs) {\n for (let i = 0; i < attrs.length; i += 2) {\n const isTerminal = i === attrs.length - 2;\n const name = attrs[i];\n const value = attrs[i + 1];\n if (isTerminal) {\n const terminalMap = matcher._attrValueMap;\n let terminalValuesMap = terminalMap.get(name);\n if (!terminalValuesMap) {\n terminalValuesMap = new Map();\n terminalMap.set(name, terminalValuesMap);\n }\n this._addTerminal(terminalValuesMap, value, selectable);\n }\n else {\n const partialMap = matcher._attrValuePartialMap;\n let partialValuesMap = partialMap.get(name);\n if (!partialValuesMap) {\n partialValuesMap = new Map();\n partialMap.set(name, partialValuesMap);\n }\n matcher = this._addPartial(partialValuesMap, value);\n }\n }\n }\n }\n _addTerminal(map, name, selectable) {\n let terminalList = map.get(name);\n if (!terminalList) {\n terminalList = [];\n map.set(name, terminalList);\n }\n terminalList.push(selectable);\n }\n _addPartial(map, name) {\n let matcher = map.get(name);\n if (!matcher) {\n matcher = new SelectorMatcher();\n map.set(name, matcher);\n }\n return matcher;\n }\n /**\n * Find the objects that have been added via `addSelectable`\n * whose css selector is contained in the given css selector.\n * @param cssSelector A css selector\n * @param matchedCallback This callback will be called with the object handed into `addSelectable`\n * @return boolean true if a match was found\n */\n match(cssSelector, matchedCallback) {\n let result = false;\n const element = cssSelector.element;\n const classNames = cssSelector.classNames;\n const attrs = cssSelector.attrs;\n for (let i = 0; i < this._listContexts.length; i++) {\n this._listContexts[i].alreadyMatched = false;\n }\n result = this._matchTerminal(this._elementMap, element, cssSelector, matchedCallback) || result;\n result = this._matchPartial(this._elementPartialMap, element, cssSelector, matchedCallback) ||\n result;\n if (classNames) {\n for (let i = 0; i < classNames.length; i++) {\n const className = classNames[i];\n result =\n this._matchTerminal(this._classMap, className, cssSelector, matchedCallback) || result;\n result =\n this._matchPartial(this._classPartialMap, className, cssSelector, matchedCallback) ||\n result;\n }\n }\n if (attrs) {\n for (let i = 0; i < attrs.length; i += 2) {\n const name = attrs[i];\n const value = attrs[i + 1];\n const terminalValuesMap = this._attrValueMap.get(name);\n if (value) {\n result =\n this._matchTerminal(terminalValuesMap, '', cssSelector, matchedCallback) || result;\n }\n result =\n this._matchTerminal(terminalValuesMap, value, cssSelector, matchedCallback) || result;\n const partialValuesMap = this._attrValuePartialMap.get(name);\n if (value) {\n result = this._matchPartial(partialValuesMap, '', cssSelector, matchedCallback) || result;\n }\n result =\n this._matchPartial(partialValuesMap, value, cssSelector, matchedCallback) || result;\n }\n }\n return result;\n }\n /** @internal */\n _matchTerminal(map, name, cssSelector, matchedCallback) {\n if (!map || typeof name !== 'string') {\n return false;\n }\n let selectables = map.get(name) || [];\n const starSelectables = map.get('*');\n if (starSelectables) {\n selectables = selectables.concat(starSelectables);\n }\n if (selectables.length === 0) {\n return false;\n }\n let selectable;\n let result = false;\n for (let i = 0; i < selectables.length; i++) {\n selectable = selectables[i];\n result = selectable.finalize(cssSelector, matchedCallback) || result;\n }\n return result;\n }\n /** @internal */\n _matchPartial(map, name, cssSelector, matchedCallback) {\n if (!map || typeof name !== 'string') {\n return false;\n }\n const nestedSelector = map.get(name);\n if (!nestedSelector) {\n return false;\n }\n // TODO(perf): get rid of recursion and measure again\n // TODO(perf): don't pass the whole selector into the recursion,\n // but only the not processed parts\n return nestedSelector.match(cssSelector, matchedCallback);\n }\n}\nclass SelectorListContext {\n constructor(selectors) {\n this.selectors = selectors;\n this.alreadyMatched = false;\n }\n}\n// Store context to pass back selector and context when a selector is matched\nclass SelectorContext {\n constructor(selector, cbContext, listContext) {\n this.selector = selector;\n this.cbContext = cbContext;\n this.listContext = listContext;\n this.notSelectors = selector.notSelectors;\n }\n finalize(cssSelector, callback) {\n let result = true;\n if (this.notSelectors.length > 0 && (!this.listContext || !this.listContext.alreadyMatched)) {\n const notMatcher = SelectorMatcher.createNotMatcher(this.notSelectors);\n result = !notMatcher.match(cssSelector, null);\n }\n if (result && callback && (!this.listContext || !this.listContext.alreadyMatched)) {\n if (this.listContext) {\n this.listContext.alreadyMatched = true;\n }\n callback(this.selector, this.cbContext);\n }\n return result;\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst createInject = makeMetadataFactory('Inject', (token) => ({ token }));\nconst createInjectionToken = makeMetadataFactory('InjectionToken', (desc) => ({ _desc: desc, ɵprov: undefined }));\nconst createAttribute = makeMetadataFactory('Attribute', (attributeName) => ({ attributeName }));\n// Stores the default value of `emitDistinctChangesOnly` when the `emitDistinctChangesOnly` is not\n// explicitly set. This value will be changed to `true` in v12.\n// TODO(misko): switch the default in v12 to `true`. See: packages/core/src/metadata/di.ts\nconst emitDistinctChangesOnlyDefaultValue = false;\nconst createContentChildren = makeMetadataFactory('ContentChildren', (selector, data = {}) => (Object.assign({ selector, first: false, isViewQuery: false, descendants: false, emitDistinctChangesOnly: emitDistinctChangesOnlyDefaultValue }, data)));\nconst createContentChild = makeMetadataFactory('ContentChild', (selector, data = {}) => (Object.assign({ selector, first: true, isViewQuery: false, descendants: true }, data)));\nconst createViewChildren = makeMetadataFactory('ViewChildren', (selector, data = {}) => (Object.assign({ selector, first: false, isViewQuery: true, descendants: true, emitDistinctChangesOnly: emitDistinctChangesOnlyDefaultValue }, data)));\nconst createViewChild = makeMetadataFactory('ViewChild', (selector, data) => (Object.assign({ selector, first: true, isViewQuery: true, descendants: true }, data)));\nconst createDirective = makeMetadataFactory('Directive', (dir = {}) => dir);\nvar ViewEncapsulation;\n(function (ViewEncapsulation) {\n ViewEncapsulation[ViewEncapsulation[\"Emulated\"] = 0] = \"Emulated\";\n // Historically the 1 value was for `Native` encapsulation which has been removed as of v11.\n ViewEncapsulation[ViewEncapsulation[\"None\"] = 2] = \"None\";\n ViewEncapsulation[ViewEncapsulation[\"ShadowDom\"] = 3] = \"ShadowDom\";\n})(ViewEncapsulation || (ViewEncapsulation = {}));\nvar ChangeDetectionStrategy;\n(function (ChangeDetectionStrategy) {\n ChangeDetectionStrategy[ChangeDetectionStrategy[\"OnPush\"] = 0] = \"OnPush\";\n ChangeDetectionStrategy[ChangeDetectionStrategy[\"Default\"] = 1] = \"Default\";\n})(ChangeDetectionStrategy || (ChangeDetectionStrategy = {}));\nconst createComponent = makeMetadataFactory('Component', (c = {}) => (Object.assign({ changeDetection: ChangeDetectionStrategy.Default }, c)));\nconst createPipe = makeMetadataFactory('Pipe', (p) => (Object.assign({ pure: true }, p)));\nconst createInput = makeMetadataFactory('Input', (bindingPropertyName) => ({ bindingPropertyName }));\nconst createOutput = makeMetadataFactory('Output', (bindingPropertyName) => ({ bindingPropertyName }));\nconst createHostBinding = makeMetadataFactory('HostBinding', (hostPropertyName) => ({ hostPropertyName }));\nconst createHostListener = makeMetadataFactory('HostListener', (eventName, args) => ({ eventName, args }));\nconst createNgModule = makeMetadataFactory('NgModule', (ngModule) => ngModule);\nconst createInjectable = makeMetadataFactory('Injectable', (injectable = {}) => injectable);\nconst CUSTOM_ELEMENTS_SCHEMA = {\n name: 'custom-elements'\n};\nconst NO_ERRORS_SCHEMA = {\n name: 'no-errors-schema'\n};\nconst createOptional = makeMetadataFactory('Optional');\nconst createSelf = makeMetadataFactory('Self');\nconst createSkipSelf = makeMetadataFactory('SkipSelf');\nconst createHost = makeMetadataFactory('Host');\nconst Type = Function;\nvar SecurityContext;\n(function (SecurityContext) {\n SecurityContext[SecurityContext[\"NONE\"] = 0] = \"NONE\";\n SecurityContext[SecurityContext[\"HTML\"] = 1] = \"HTML\";\n SecurityContext[SecurityContext[\"STYLE\"] = 2] = \"STYLE\";\n SecurityContext[SecurityContext[\"SCRIPT\"] = 3] = \"SCRIPT\";\n SecurityContext[SecurityContext[\"URL\"] = 4] = \"URL\";\n SecurityContext[SecurityContext[\"RESOURCE_URL\"] = 5] = \"RESOURCE_URL\";\n})(SecurityContext || (SecurityContext = {}));\nvar MissingTranslationStrategy;\n(function (MissingTranslationStrategy) {\n MissingTranslationStrategy[MissingTranslationStrategy[\"Error\"] = 0] = \"Error\";\n MissingTranslationStrategy[MissingTranslationStrategy[\"Warning\"] = 1] = \"Warning\";\n MissingTranslationStrategy[MissingTranslationStrategy[\"Ignore\"] = 2] = \"Ignore\";\n})(MissingTranslationStrategy || (MissingTranslationStrategy = {}));\nfunction makeMetadataFactory(name, props) {\n // This must be declared as a function, not a fat arrow, so that ES2015 devmode produces code\n // that works with the static_reflector.ts in the ViewEngine compiler.\n // In particular, `_registerDecoratorOrConstructor` assumes that the value returned here can be\n // new'ed.\n function factory(...args) {\n const values = props ? props(...args) : {};\n return Object.assign({ ngMetadataName: name }, values);\n }\n factory.isTypeOf = (obj) => obj && obj.ngMetadataName === name;\n factory.ngMetadataName = name;\n return factory;\n}\nfunction parserSelectorToSimpleSelector(selector) {\n const classes = selector.classNames && selector.classNames.length ?\n [8 /* CLASS */, ...selector.classNames] :\n [];\n const elementName = selector.element && selector.element !== '*' ? selector.element : '';\n return [elementName, ...selector.attrs, ...classes];\n}\nfunction parserSelectorToNegativeSelector(selector) {\n const classes = selector.classNames && selector.classNames.length ?\n [8 /* CLASS */, ...selector.classNames] :\n [];\n if (selector.element) {\n return [\n 1 /* NOT */ | 4 /* ELEMENT */, selector.element, ...selector.attrs, ...classes\n ];\n }\n else if (selector.attrs.length) {\n return [1 /* NOT */ | 2 /* ATTRIBUTE */, ...selector.attrs, ...classes];\n }\n else {\n return selector.classNames && selector.classNames.length ?\n [1 /* NOT */ | 8 /* CLASS */, ...selector.classNames] :\n [];\n }\n}\nfunction parserSelectorToR3Selector(selector) {\n const positive = parserSelectorToSimpleSelector(selector);\n const negative = selector.notSelectors && selector.notSelectors.length ?\n selector.notSelectors.map(notSelector => parserSelectorToNegativeSelector(notSelector)) :\n [];\n return positive.concat(...negative);\n}\nfunction parseSelectorToR3Selector(selector) {\n return selector ? CssSelector.parse(selector).map(parserSelectorToR3Selector) : [];\n}\n\nvar core = /*#__PURE__*/Object.freeze({\n __proto__: null,\n createInject: createInject,\n createInjectionToken: createInjectionToken,\n createAttribute: createAttribute,\n emitDistinctChangesOnlyDefaultValue: emitDistinctChangesOnlyDefaultValue,\n createContentChildren: createContentChildren,\n createContentChild: createContentChild,\n createViewChildren: createViewChildren,\n createViewChild: createViewChild,\n createDirective: createDirective,\n get ViewEncapsulation () { return ViewEncapsulation; },\n get ChangeDetectionStrategy () { return ChangeDetectionStrategy; },\n createComponent: createComponent,\n createPipe: createPipe,\n createInput: createInput,\n createOutput: createOutput,\n createHostBinding: createHostBinding,\n createHostListener: createHostListener,\n createNgModule: createNgModule,\n createInjectable: createInjectable,\n CUSTOM_ELEMENTS_SCHEMA: CUSTOM_ELEMENTS_SCHEMA,\n NO_ERRORS_SCHEMA: NO_ERRORS_SCHEMA,\n createOptional: createOptional,\n createSelf: createSelf,\n createSkipSelf: createSkipSelf,\n createHost: createHost,\n Type: Type,\n get SecurityContext () { return SecurityContext; },\n get MissingTranslationStrategy () { return MissingTranslationStrategy; },\n parseSelectorToR3Selector: parseSelectorToR3Selector\n});\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n//// Types\nvar TypeModifier;\n(function (TypeModifier) {\n TypeModifier[TypeModifier[\"Const\"] = 0] = \"Const\";\n})(TypeModifier || (TypeModifier = {}));\nclass Type$1 {\n constructor(modifiers = []) {\n this.modifiers = modifiers;\n }\n hasModifier(modifier) {\n return this.modifiers.indexOf(modifier) !== -1;\n }\n}\nvar BuiltinTypeName;\n(function (BuiltinTypeName) {\n BuiltinTypeName[BuiltinTypeName[\"Dynamic\"] = 0] = \"Dynamic\";\n BuiltinTypeName[BuiltinTypeName[\"Bool\"] = 1] = \"Bool\";\n BuiltinTypeName[BuiltinTypeName[\"String\"] = 2] = \"String\";\n BuiltinTypeName[BuiltinTypeName[\"Int\"] = 3] = \"Int\";\n BuiltinTypeName[BuiltinTypeName[\"Number\"] = 4] = \"Number\";\n BuiltinTypeName[BuiltinTypeName[\"Function\"] = 5] = \"Function\";\n BuiltinTypeName[BuiltinTypeName[\"Inferred\"] = 6] = \"Inferred\";\n BuiltinTypeName[BuiltinTypeName[\"None\"] = 7] = \"None\";\n})(BuiltinTypeName || (BuiltinTypeName = {}));\nclass BuiltinType extends Type$1 {\n constructor(name, modifiers) {\n super(modifiers);\n this.name = name;\n }\n visitType(visitor, context) {\n return visitor.visitBuiltinType(this, context);\n }\n}\nclass ExpressionType extends Type$1 {\n constructor(value, modifiers, typeParams = null) {\n super(modifiers);\n this.value = value;\n this.typeParams = typeParams;\n }\n visitType(visitor, context) {\n return visitor.visitExpressionType(this, context);\n }\n}\nclass ArrayType extends Type$1 {\n constructor(of, modifiers) {\n super(modifiers);\n this.of = of;\n }\n visitType(visitor, context) {\n return visitor.visitArrayType(this, context);\n }\n}\nclass MapType extends Type$1 {\n constructor(valueType, modifiers) {\n super(modifiers);\n this.valueType = valueType || null;\n }\n visitType(visitor, context) {\n return visitor.visitMapType(this, context);\n }\n}\nconst DYNAMIC_TYPE = new BuiltinType(BuiltinTypeName.Dynamic);\nconst INFERRED_TYPE = new BuiltinType(BuiltinTypeName.Inferred);\nconst BOOL_TYPE = new BuiltinType(BuiltinTypeName.Bool);\nconst INT_TYPE = new BuiltinType(BuiltinTypeName.Int);\nconst NUMBER_TYPE = new BuiltinType(BuiltinTypeName.Number);\nconst STRING_TYPE = new BuiltinType(BuiltinTypeName.String);\nconst FUNCTION_TYPE = new BuiltinType(BuiltinTypeName.Function);\nconst NONE_TYPE = new BuiltinType(BuiltinTypeName.None);\n///// Expressions\nvar UnaryOperator;\n(function (UnaryOperator) {\n UnaryOperator[UnaryOperator[\"Minus\"] = 0] = \"Minus\";\n UnaryOperator[UnaryOperator[\"Plus\"] = 1] = \"Plus\";\n})(UnaryOperator || (UnaryOperator = {}));\nvar BinaryOperator;\n(function (BinaryOperator) {\n BinaryOperator[BinaryOperator[\"Equals\"] = 0] = \"Equals\";\n BinaryOperator[BinaryOperator[\"NotEquals\"] = 1] = \"NotEquals\";\n BinaryOperator[BinaryOperator[\"Identical\"] = 2] = \"Identical\";\n BinaryOperator[BinaryOperator[\"NotIdentical\"] = 3] = \"NotIdentical\";\n BinaryOperator[BinaryOperator[\"Minus\"] = 4] = \"Minus\";\n BinaryOperator[BinaryOperator[\"Plus\"] = 5] = \"Plus\";\n BinaryOperator[BinaryOperator[\"Divide\"] = 6] = \"Divide\";\n BinaryOperator[BinaryOperator[\"Multiply\"] = 7] = \"Multiply\";\n BinaryOperator[BinaryOperator[\"Modulo\"] = 8] = \"Modulo\";\n BinaryOperator[BinaryOperator[\"And\"] = 9] = \"And\";\n BinaryOperator[BinaryOperator[\"Or\"] = 10] = \"Or\";\n BinaryOperator[BinaryOperator[\"BitwiseAnd\"] = 11] = \"BitwiseAnd\";\n BinaryOperator[BinaryOperator[\"Lower\"] = 12] = \"Lower\";\n BinaryOperator[BinaryOperator[\"LowerEquals\"] = 13] = \"LowerEquals\";\n BinaryOperator[BinaryOperator[\"Bigger\"] = 14] = \"Bigger\";\n BinaryOperator[BinaryOperator[\"BiggerEquals\"] = 15] = \"BiggerEquals\";\n})(BinaryOperator || (BinaryOperator = {}));\nfunction nullSafeIsEquivalent(base, other) {\n if (base == null || other == null) {\n return base == other;\n }\n return base.isEquivalent(other);\n}\nfunction areAllEquivalentPredicate(base, other, equivalentPredicate) {\n const len = base.length;\n if (len !== other.length) {\n return false;\n }\n for (let i = 0; i < len; i++) {\n if (!equivalentPredicate(base[i], other[i])) {\n return false;\n }\n }\n return true;\n}\nfunction areAllEquivalent(base, other) {\n return areAllEquivalentPredicate(base, other, (baseElement, otherElement) => baseElement.isEquivalent(otherElement));\n}\nclass Expression {\n constructor(type, sourceSpan) {\n this.type = type || null;\n this.sourceSpan = sourceSpan || null;\n }\n prop(name, sourceSpan) {\n return new ReadPropExpr(this, name, null, sourceSpan);\n }\n key(index, type, sourceSpan) {\n return new ReadKeyExpr(this, index, type, sourceSpan);\n }\n callMethod(name, params, sourceSpan) {\n return new InvokeMethodExpr(this, name, params, null, sourceSpan);\n }\n callFn(params, sourceSpan, pure) {\n return new InvokeFunctionExpr(this, params, null, sourceSpan, pure);\n }\n instantiate(params, type, sourceSpan) {\n return new InstantiateExpr(this, params, type, sourceSpan);\n }\n conditional(trueCase, falseCase = null, sourceSpan) {\n return new ConditionalExpr(this, trueCase, falseCase, null, sourceSpan);\n }\n equals(rhs, sourceSpan) {\n return new BinaryOperatorExpr(BinaryOperator.Equals, this, rhs, null, sourceSpan);\n }\n notEquals(rhs, sourceSpan) {\n return new BinaryOperatorExpr(BinaryOperator.NotEquals, this, rhs, null, sourceSpan);\n }\n identical(rhs, sourceSpan) {\n return new BinaryOperatorExpr(BinaryOperator.Identical, this, rhs, null, sourceSpan);\n }\n notIdentical(rhs, sourceSpan) {\n return new BinaryOperatorExpr(BinaryOperator.NotIdentical, this, rhs, null, sourceSpan);\n }\n minus(rhs, sourceSpan) {\n return new BinaryOperatorExpr(BinaryOperator.Minus, this, rhs, null, sourceSpan);\n }\n plus(rhs, sourceSpan) {\n return new BinaryOperatorExpr(BinaryOperator.Plus, this, rhs, null, sourceSpan);\n }\n divide(rhs, sourceSpan) {\n return new BinaryOperatorExpr(BinaryOperator.Divide, this, rhs, null, sourceSpan);\n }\n multiply(rhs, sourceSpan) {\n return new BinaryOperatorExpr(BinaryOperator.Multiply, this, rhs, null, sourceSpan);\n }\n modulo(rhs, sourceSpan) {\n return new BinaryOperatorExpr(BinaryOperator.Modulo, this, rhs, null, sourceSpan);\n }\n and(rhs, sourceSpan) {\n return new BinaryOperatorExpr(BinaryOperator.And, this, rhs, null, sourceSpan);\n }\n bitwiseAnd(rhs, sourceSpan, parens = true) {\n return new BinaryOperatorExpr(BinaryOperator.BitwiseAnd, this, rhs, null, sourceSpan, parens);\n }\n or(rhs, sourceSpan) {\n return new BinaryOperatorExpr(BinaryOperator.Or, this, rhs, null, sourceSpan);\n }\n lower(rhs, sourceSpan) {\n return new BinaryOperatorExpr(BinaryOperator.Lower, this, rhs, null, sourceSpan);\n }\n lowerEquals(rhs, sourceSpan) {\n return new BinaryOperatorExpr(BinaryOperator.LowerEquals, this, rhs, null, sourceSpan);\n }\n bigger(rhs, sourceSpan) {\n return new BinaryOperatorExpr(BinaryOperator.Bigger, this, rhs, null, sourceSpan);\n }\n biggerEquals(rhs, sourceSpan) {\n return new BinaryOperatorExpr(BinaryOperator.BiggerEquals, this, rhs, null, sourceSpan);\n }\n isBlank(sourceSpan) {\n // Note: We use equals by purpose here to compare to null and undefined in JS.\n // We use the typed null to allow strictNullChecks to narrow types.\n return this.equals(TYPED_NULL_EXPR, sourceSpan);\n }\n cast(type, sourceSpan) {\n return new CastExpr(this, type, sourceSpan);\n }\n toStmt() {\n return new ExpressionStatement(this, null);\n }\n}\nvar BuiltinVar;\n(function (BuiltinVar) {\n BuiltinVar[BuiltinVar[\"This\"] = 0] = \"This\";\n BuiltinVar[BuiltinVar[\"Super\"] = 1] = \"Super\";\n BuiltinVar[BuiltinVar[\"CatchError\"] = 2] = \"CatchError\";\n BuiltinVar[BuiltinVar[\"CatchStack\"] = 3] = \"CatchStack\";\n})(BuiltinVar || (BuiltinVar = {}));\nclass ReadVarExpr extends Expression {\n constructor(name, type, sourceSpan) {\n super(type, sourceSpan);\n if (typeof name === 'string') {\n this.name = name;\n this.builtin = null;\n }\n else {\n this.name = null;\n this.builtin = name;\n }\n }\n isEquivalent(e) {\n return e instanceof ReadVarExpr && this.name === e.name && this.builtin === e.builtin;\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitReadVarExpr(this, context);\n }\n set(value) {\n if (!this.name) {\n throw new Error(`Built in variable ${this.builtin} can not be assigned to.`);\n }\n return new WriteVarExpr(this.name, value, null, this.sourceSpan);\n }\n}\nclass TypeofExpr extends Expression {\n constructor(expr, type, sourceSpan) {\n super(type, sourceSpan);\n this.expr = expr;\n }\n visitExpression(visitor, context) {\n return visitor.visitTypeofExpr(this, context);\n }\n isEquivalent(e) {\n return e instanceof TypeofExpr && e.expr.isEquivalent(this.expr);\n }\n isConstant() {\n return this.expr.isConstant();\n }\n}\nclass WrappedNodeExpr extends Expression {\n constructor(node, type, sourceSpan) {\n super(type, sourceSpan);\n this.node = node;\n }\n isEquivalent(e) {\n return e instanceof WrappedNodeExpr && this.node === e.node;\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitWrappedNodeExpr(this, context);\n }\n}\nclass WriteVarExpr extends Expression {\n constructor(name, value, type, sourceSpan) {\n super(type || value.type, sourceSpan);\n this.name = name;\n this.value = value;\n }\n isEquivalent(e) {\n return e instanceof WriteVarExpr && this.name === e.name && this.value.isEquivalent(e.value);\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitWriteVarExpr(this, context);\n }\n toDeclStmt(type, modifiers) {\n return new DeclareVarStmt(this.name, this.value, type, modifiers, this.sourceSpan);\n }\n toConstDecl() {\n return this.toDeclStmt(INFERRED_TYPE, [StmtModifier.Final]);\n }\n}\nclass WriteKeyExpr extends Expression {\n constructor(receiver, index, value, type, sourceSpan) {\n super(type || value.type, sourceSpan);\n this.receiver = receiver;\n this.index = index;\n this.value = value;\n }\n isEquivalent(e) {\n return e instanceof WriteKeyExpr && this.receiver.isEquivalent(e.receiver) &&\n this.index.isEquivalent(e.index) && this.value.isEquivalent(e.value);\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitWriteKeyExpr(this, context);\n }\n}\nclass WritePropExpr extends Expression {\n constructor(receiver, name, value, type, sourceSpan) {\n super(type || value.type, sourceSpan);\n this.receiver = receiver;\n this.name = name;\n this.value = value;\n }\n isEquivalent(e) {\n return e instanceof WritePropExpr && this.receiver.isEquivalent(e.receiver) &&\n this.name === e.name && this.value.isEquivalent(e.value);\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitWritePropExpr(this, context);\n }\n}\nvar BuiltinMethod;\n(function (BuiltinMethod) {\n BuiltinMethod[BuiltinMethod[\"ConcatArray\"] = 0] = \"ConcatArray\";\n BuiltinMethod[BuiltinMethod[\"SubscribeObservable\"] = 1] = \"SubscribeObservable\";\n BuiltinMethod[BuiltinMethod[\"Bind\"] = 2] = \"Bind\";\n})(BuiltinMethod || (BuiltinMethod = {}));\nclass InvokeMethodExpr extends Expression {\n constructor(receiver, method, args, type, sourceSpan) {\n super(type, sourceSpan);\n this.receiver = receiver;\n this.args = args;\n if (typeof method === 'string') {\n this.name = method;\n this.builtin = null;\n }\n else {\n this.name = null;\n this.builtin = method;\n }\n }\n isEquivalent(e) {\n return e instanceof InvokeMethodExpr && this.receiver.isEquivalent(e.receiver) &&\n this.name === e.name && this.builtin === e.builtin && areAllEquivalent(this.args, e.args);\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitInvokeMethodExpr(this, context);\n }\n}\nclass InvokeFunctionExpr extends Expression {\n constructor(fn, args, type, sourceSpan, pure = false) {\n super(type, sourceSpan);\n this.fn = fn;\n this.args = args;\n this.pure = pure;\n }\n isEquivalent(e) {\n return e instanceof InvokeFunctionExpr && this.fn.isEquivalent(e.fn) &&\n areAllEquivalent(this.args, e.args) && this.pure === e.pure;\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitInvokeFunctionExpr(this, context);\n }\n}\nclass TaggedTemplateExpr extends Expression {\n constructor(tag, template, type, sourceSpan) {\n super(type, sourceSpan);\n this.tag = tag;\n this.template = template;\n }\n isEquivalent(e) {\n return e instanceof TaggedTemplateExpr && this.tag.isEquivalent(e.tag) &&\n areAllEquivalentPredicate(this.template.elements, e.template.elements, (a, b) => a.text === b.text) &&\n areAllEquivalent(this.template.expressions, e.template.expressions);\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitTaggedTemplateExpr(this, context);\n }\n}\nclass InstantiateExpr extends Expression {\n constructor(classExpr, args, type, sourceSpan) {\n super(type, sourceSpan);\n this.classExpr = classExpr;\n this.args = args;\n }\n isEquivalent(e) {\n return e instanceof InstantiateExpr && this.classExpr.isEquivalent(e.classExpr) &&\n areAllEquivalent(this.args, e.args);\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitInstantiateExpr(this, context);\n }\n}\nclass LiteralExpr extends Expression {\n constructor(value, type, sourceSpan) {\n super(type, sourceSpan);\n this.value = value;\n }\n isEquivalent(e) {\n return e instanceof LiteralExpr && this.value === e.value;\n }\n isConstant() {\n return true;\n }\n visitExpression(visitor, context) {\n return visitor.visitLiteralExpr(this, context);\n }\n}\nclass TemplateLiteral {\n constructor(elements, expressions) {\n this.elements = elements;\n this.expressions = expressions;\n }\n}\nclass TemplateLiteralElement {\n constructor(text, sourceSpan, rawText) {\n var _a;\n this.text = text;\n this.sourceSpan = sourceSpan;\n // If `rawText` is not provided, try to extract the raw string from its\n // associated `sourceSpan`. If that is also not available, \"fake\" the raw\n // string instead by escaping the following control sequences:\n // - \"\\\" would otherwise indicate that the next character is a control character.\n // - \"`\" and \"${\" are template string control sequences that would otherwise prematurely\n // indicate the end of the template literal element.\n this.rawText = (_a = rawText !== null && rawText !== void 0 ? rawText : sourceSpan === null || sourceSpan === void 0 ? void 0 : sourceSpan.toString()) !== null && _a !== void 0 ? _a : escapeForTemplateLiteral(escapeSlashes(text));\n }\n}\nclass MessagePiece {\n constructor(text, sourceSpan) {\n this.text = text;\n this.sourceSpan = sourceSpan;\n }\n}\nclass LiteralPiece extends MessagePiece {\n}\nclass PlaceholderPiece extends MessagePiece {\n}\nclass LocalizedString extends Expression {\n constructor(metaBlock, messageParts, placeHolderNames, expressions, sourceSpan) {\n super(STRING_TYPE, sourceSpan);\n this.metaBlock = metaBlock;\n this.messageParts = messageParts;\n this.placeHolderNames = placeHolderNames;\n this.expressions = expressions;\n }\n isEquivalent(e) {\n // return e instanceof LocalizedString && this.message === e.message;\n return false;\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitLocalizedString(this, context);\n }\n /**\n * Serialize the given `meta` and `messagePart` into \"cooked\" and \"raw\" strings that can be used\n * in a `$localize` tagged string. The format of the metadata is the same as that parsed by\n * `parseI18nMeta()`.\n *\n * @param meta The metadata to serialize\n * @param messagePart The first part of the tagged string\n */\n serializeI18nHead() {\n const MEANING_SEPARATOR = '|';\n const ID_SEPARATOR = '@@';\n const LEGACY_ID_INDICATOR = '␟';\n let metaBlock = this.metaBlock.description || '';\n if (this.metaBlock.meaning) {\n metaBlock = `${this.metaBlock.meaning}${MEANING_SEPARATOR}${metaBlock}`;\n }\n if (this.metaBlock.customId) {\n metaBlock = `${metaBlock}${ID_SEPARATOR}${this.metaBlock.customId}`;\n }\n if (this.metaBlock.legacyIds) {\n this.metaBlock.legacyIds.forEach(legacyId => {\n metaBlock = `${metaBlock}${LEGACY_ID_INDICATOR}${legacyId}`;\n });\n }\n return createCookedRawString(metaBlock, this.messageParts[0].text, this.getMessagePartSourceSpan(0));\n }\n getMessagePartSourceSpan(i) {\n var _a, _b;\n return (_b = (_a = this.messageParts[i]) === null || _a === void 0 ? void 0 : _a.sourceSpan) !== null && _b !== void 0 ? _b : this.sourceSpan;\n }\n getPlaceholderSourceSpan(i) {\n var _a, _b, _c, _d;\n return (_d = (_b = (_a = this.placeHolderNames[i]) === null || _a === void 0 ? void 0 : _a.sourceSpan) !== null && _b !== void 0 ? _b : (_c = this.expressions[i]) === null || _c === void 0 ? void 0 : _c.sourceSpan) !== null && _d !== void 0 ? _d : this.sourceSpan;\n }\n /**\n * Serialize the given `placeholderName` and `messagePart` into \"cooked\" and \"raw\" strings that\n * can be used in a `$localize` tagged string.\n *\n * @param placeholderName The placeholder name to serialize\n * @param messagePart The following message string after this placeholder\n */\n serializeI18nTemplatePart(partIndex) {\n const placeholderName = this.placeHolderNames[partIndex - 1].text;\n const messagePart = this.messageParts[partIndex];\n return createCookedRawString(placeholderName, messagePart.text, this.getMessagePartSourceSpan(partIndex));\n }\n}\nconst escapeSlashes = (str) => str.replace(/\\\\/g, '\\\\\\\\');\nconst escapeStartingColon = (str) => str.replace(/^:/, '\\\\:');\nconst escapeColons = (str) => str.replace(/:/g, '\\\\:');\nconst escapeForTemplateLiteral = (str) => str.replace(/`/g, '\\\\`').replace(/\\${/g, '$\\\\{');\n/**\n * Creates a `{cooked, raw}` object from the `metaBlock` and `messagePart`.\n *\n * The `raw` text must have various character sequences escaped:\n * * \"\\\" would otherwise indicate that the next character is a control character.\n * * \"`\" and \"${\" are template string control sequences that would otherwise prematurely indicate\n * the end of a message part.\n * * \":\" inside a metablock would prematurely indicate the end of the metablock.\n * * \":\" at the start of a messagePart with no metablock would erroneously indicate the start of a\n * metablock.\n *\n * @param metaBlock Any metadata that should be prepended to the string\n * @param messagePart The message part of the string\n */\nfunction createCookedRawString(metaBlock, messagePart, range) {\n if (metaBlock === '') {\n return {\n cooked: messagePart,\n raw: escapeForTemplateLiteral(escapeStartingColon(escapeSlashes(messagePart))),\n range,\n };\n }\n else {\n return {\n cooked: `:${metaBlock}:${messagePart}`,\n raw: escapeForTemplateLiteral(`:${escapeColons(escapeSlashes(metaBlock))}:${escapeSlashes(messagePart)}`),\n range,\n };\n }\n}\nclass ExternalExpr extends Expression {\n constructor(value, type, typeParams = null, sourceSpan) {\n super(type, sourceSpan);\n this.value = value;\n this.typeParams = typeParams;\n }\n isEquivalent(e) {\n return e instanceof ExternalExpr && this.value.name === e.value.name &&\n this.value.moduleName === e.value.moduleName && this.value.runtime === e.value.runtime;\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitExternalExpr(this, context);\n }\n}\nclass ExternalReference {\n constructor(moduleName, name, runtime) {\n this.moduleName = moduleName;\n this.name = name;\n this.runtime = runtime;\n }\n}\nclass ConditionalExpr extends Expression {\n constructor(condition, trueCase, falseCase = null, type, sourceSpan) {\n super(type || trueCase.type, sourceSpan);\n this.condition = condition;\n this.falseCase = falseCase;\n this.trueCase = trueCase;\n }\n isEquivalent(e) {\n return e instanceof ConditionalExpr && this.condition.isEquivalent(e.condition) &&\n this.trueCase.isEquivalent(e.trueCase) && nullSafeIsEquivalent(this.falseCase, e.falseCase);\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitConditionalExpr(this, context);\n }\n}\nclass NotExpr extends Expression {\n constructor(condition, sourceSpan) {\n super(BOOL_TYPE, sourceSpan);\n this.condition = condition;\n }\n isEquivalent(e) {\n return e instanceof NotExpr && this.condition.isEquivalent(e.condition);\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitNotExpr(this, context);\n }\n}\nclass AssertNotNull extends Expression {\n constructor(condition, sourceSpan) {\n super(condition.type, sourceSpan);\n this.condition = condition;\n }\n isEquivalent(e) {\n return e instanceof AssertNotNull && this.condition.isEquivalent(e.condition);\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitAssertNotNullExpr(this, context);\n }\n}\nclass CastExpr extends Expression {\n constructor(value, type, sourceSpan) {\n super(type, sourceSpan);\n this.value = value;\n }\n isEquivalent(e) {\n return e instanceof CastExpr && this.value.isEquivalent(e.value);\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitCastExpr(this, context);\n }\n}\nclass FnParam {\n constructor(name, type = null) {\n this.name = name;\n this.type = type;\n }\n isEquivalent(param) {\n return this.name === param.name;\n }\n}\nclass FunctionExpr extends Expression {\n constructor(params, statements, type, sourceSpan, name) {\n super(type, sourceSpan);\n this.params = params;\n this.statements = statements;\n this.name = name;\n }\n isEquivalent(e) {\n return e instanceof FunctionExpr && areAllEquivalent(this.params, e.params) &&\n areAllEquivalent(this.statements, e.statements);\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitFunctionExpr(this, context);\n }\n toDeclStmt(name, modifiers) {\n return new DeclareFunctionStmt(name, this.params, this.statements, this.type, modifiers, this.sourceSpan);\n }\n}\nclass UnaryOperatorExpr extends Expression {\n constructor(operator, expr, type, sourceSpan, parens = true) {\n super(type || NUMBER_TYPE, sourceSpan);\n this.operator = operator;\n this.expr = expr;\n this.parens = parens;\n }\n isEquivalent(e) {\n return e instanceof UnaryOperatorExpr && this.operator === e.operator &&\n this.expr.isEquivalent(e.expr);\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitUnaryOperatorExpr(this, context);\n }\n}\nclass BinaryOperatorExpr extends Expression {\n constructor(operator, lhs, rhs, type, sourceSpan, parens = true) {\n super(type || lhs.type, sourceSpan);\n this.operator = operator;\n this.rhs = rhs;\n this.parens = parens;\n this.lhs = lhs;\n }\n isEquivalent(e) {\n return e instanceof BinaryOperatorExpr && this.operator === e.operator &&\n this.lhs.isEquivalent(e.lhs) && this.rhs.isEquivalent(e.rhs);\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitBinaryOperatorExpr(this, context);\n }\n}\nclass ReadPropExpr extends Expression {\n constructor(receiver, name, type, sourceSpan) {\n super(type, sourceSpan);\n this.receiver = receiver;\n this.name = name;\n }\n isEquivalent(e) {\n return e instanceof ReadPropExpr && this.receiver.isEquivalent(e.receiver) &&\n this.name === e.name;\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitReadPropExpr(this, context);\n }\n set(value) {\n return new WritePropExpr(this.receiver, this.name, value, null, this.sourceSpan);\n }\n}\nclass ReadKeyExpr extends Expression {\n constructor(receiver, index, type, sourceSpan) {\n super(type, sourceSpan);\n this.receiver = receiver;\n this.index = index;\n }\n isEquivalent(e) {\n return e instanceof ReadKeyExpr && this.receiver.isEquivalent(e.receiver) &&\n this.index.isEquivalent(e.index);\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitReadKeyExpr(this, context);\n }\n set(value) {\n return new WriteKeyExpr(this.receiver, this.index, value, null, this.sourceSpan);\n }\n}\nclass LiteralArrayExpr extends Expression {\n constructor(entries, type, sourceSpan) {\n super(type, sourceSpan);\n this.entries = entries;\n }\n isConstant() {\n return this.entries.every(e => e.isConstant());\n }\n isEquivalent(e) {\n return e instanceof LiteralArrayExpr && areAllEquivalent(this.entries, e.entries);\n }\n visitExpression(visitor, context) {\n return visitor.visitLiteralArrayExpr(this, context);\n }\n}\nclass LiteralMapEntry {\n constructor(key, value, quoted) {\n this.key = key;\n this.value = value;\n this.quoted = quoted;\n }\n isEquivalent(e) {\n return this.key === e.key && this.value.isEquivalent(e.value);\n }\n}\nclass LiteralMapExpr extends Expression {\n constructor(entries, type, sourceSpan) {\n super(type, sourceSpan);\n this.entries = entries;\n this.valueType = null;\n if (type) {\n this.valueType = type.valueType;\n }\n }\n isEquivalent(e) {\n return e instanceof LiteralMapExpr && areAllEquivalent(this.entries, e.entries);\n }\n isConstant() {\n return this.entries.every(e => e.value.isConstant());\n }\n visitExpression(visitor, context) {\n return visitor.visitLiteralMapExpr(this, context);\n }\n}\nclass CommaExpr extends Expression {\n constructor(parts, sourceSpan) {\n super(parts[parts.length - 1].type, sourceSpan);\n this.parts = parts;\n }\n isEquivalent(e) {\n return e instanceof CommaExpr && areAllEquivalent(this.parts, e.parts);\n }\n isConstant() {\n return false;\n }\n visitExpression(visitor, context) {\n return visitor.visitCommaExpr(this, context);\n }\n}\nconst THIS_EXPR = new ReadVarExpr(BuiltinVar.This, null, null);\nconst SUPER_EXPR = new ReadVarExpr(BuiltinVar.Super, null, null);\nconst CATCH_ERROR_VAR = new ReadVarExpr(BuiltinVar.CatchError, null, null);\nconst CATCH_STACK_VAR = new ReadVarExpr(BuiltinVar.CatchStack, null, null);\nconst NULL_EXPR = new LiteralExpr(null, null, null);\nconst TYPED_NULL_EXPR = new LiteralExpr(null, INFERRED_TYPE, null);\n//// Statements\nvar StmtModifier;\n(function (StmtModifier) {\n StmtModifier[StmtModifier[\"Final\"] = 0] = \"Final\";\n StmtModifier[StmtModifier[\"Private\"] = 1] = \"Private\";\n StmtModifier[StmtModifier[\"Exported\"] = 2] = \"Exported\";\n StmtModifier[StmtModifier[\"Static\"] = 3] = \"Static\";\n})(StmtModifier || (StmtModifier = {}));\nclass LeadingComment {\n constructor(text, multiline, trailingNewline) {\n this.text = text;\n this.multiline = multiline;\n this.trailingNewline = trailingNewline;\n }\n toString() {\n return this.multiline ? ` ${this.text} ` : this.text;\n }\n}\nclass JSDocComment extends LeadingComment {\n constructor(tags) {\n super('', /* multiline */ true, /* trailingNewline */ true);\n this.tags = tags;\n }\n toString() {\n return serializeTags(this.tags);\n }\n}\nclass Statement {\n constructor(modifiers = [], sourceSpan = null, leadingComments) {\n this.modifiers = modifiers;\n this.sourceSpan = sourceSpan;\n this.leadingComments = leadingComments;\n }\n hasModifier(modifier) {\n return this.modifiers.indexOf(modifier) !== -1;\n }\n addLeadingComment(leadingComment) {\n var _a;\n this.leadingComments = (_a = this.leadingComments) !== null && _a !== void 0 ? _a : [];\n this.leadingComments.push(leadingComment);\n }\n}\nclass DeclareVarStmt extends Statement {\n constructor(name, value, type, modifiers, sourceSpan, leadingComments) {\n super(modifiers, sourceSpan, leadingComments);\n this.name = name;\n this.value = value;\n this.type = type || (value && value.type) || null;\n }\n isEquivalent(stmt) {\n return stmt instanceof DeclareVarStmt && this.name === stmt.name &&\n (this.value ? !!stmt.value && this.value.isEquivalent(stmt.value) : !stmt.value);\n }\n visitStatement(visitor, context) {\n return visitor.visitDeclareVarStmt(this, context);\n }\n}\nclass DeclareFunctionStmt extends Statement {\n constructor(name, params, statements, type, modifiers, sourceSpan, leadingComments) {\n super(modifiers, sourceSpan, leadingComments);\n this.name = name;\n this.params = params;\n this.statements = statements;\n this.type = type || null;\n }\n isEquivalent(stmt) {\n return stmt instanceof DeclareFunctionStmt && areAllEquivalent(this.params, stmt.params) &&\n areAllEquivalent(this.statements, stmt.statements);\n }\n visitStatement(visitor, context) {\n return visitor.visitDeclareFunctionStmt(this, context);\n }\n}\nclass ExpressionStatement extends Statement {\n constructor(expr, sourceSpan, leadingComments) {\n super([], sourceSpan, leadingComments);\n this.expr = expr;\n }\n isEquivalent(stmt) {\n return stmt instanceof ExpressionStatement && this.expr.isEquivalent(stmt.expr);\n }\n visitStatement(visitor, context) {\n return visitor.visitExpressionStmt(this, context);\n }\n}\nclass ReturnStatement extends Statement {\n constructor(value, sourceSpan = null, leadingComments) {\n super([], sourceSpan, leadingComments);\n this.value = value;\n }\n isEquivalent(stmt) {\n return stmt instanceof ReturnStatement && this.value.isEquivalent(stmt.value);\n }\n visitStatement(visitor, context) {\n return visitor.visitReturnStmt(this, context);\n }\n}\nclass AbstractClassPart {\n constructor(type = null, modifiers = []) {\n this.type = type;\n this.modifiers = modifiers;\n }\n hasModifier(modifier) {\n return this.modifiers.indexOf(modifier) !== -1;\n }\n}\nclass ClassField extends AbstractClassPart {\n constructor(name, type, modifiers, initializer) {\n super(type, modifiers);\n this.name = name;\n this.initializer = initializer;\n }\n isEquivalent(f) {\n return this.name === f.name;\n }\n}\nclass ClassMethod extends AbstractClassPart {\n constructor(name, params, body, type, modifiers) {\n super(type, modifiers);\n this.name = name;\n this.params = params;\n this.body = body;\n }\n isEquivalent(m) {\n return this.name === m.name && areAllEquivalent(this.body, m.body);\n }\n}\nclass ClassGetter extends AbstractClassPart {\n constructor(name, body, type, modifiers) {\n super(type, modifiers);\n this.name = name;\n this.body = body;\n }\n isEquivalent(m) {\n return this.name === m.name && areAllEquivalent(this.body, m.body);\n }\n}\nclass ClassStmt extends Statement {\n constructor(name, parent, fields, getters, constructorMethod, methods, modifiers, sourceSpan, leadingComments) {\n super(modifiers, sourceSpan, leadingComments);\n this.name = name;\n this.parent = parent;\n this.fields = fields;\n this.getters = getters;\n this.constructorMethod = constructorMethod;\n this.methods = methods;\n }\n isEquivalent(stmt) {\n return stmt instanceof ClassStmt && this.name === stmt.name &&\n nullSafeIsEquivalent(this.parent, stmt.parent) &&\n areAllEquivalent(this.fields, stmt.fields) &&\n areAllEquivalent(this.getters, stmt.getters) &&\n this.constructorMethod.isEquivalent(stmt.constructorMethod) &&\n areAllEquivalent(this.methods, stmt.methods);\n }\n visitStatement(visitor, context) {\n return visitor.visitDeclareClassStmt(this, context);\n }\n}\nclass IfStmt extends Statement {\n constructor(condition, trueCase, falseCase = [], sourceSpan, leadingComments) {\n super([], sourceSpan, leadingComments);\n this.condition = condition;\n this.trueCase = trueCase;\n this.falseCase = falseCase;\n }\n isEquivalent(stmt) {\n return stmt instanceof IfStmt && this.condition.isEquivalent(stmt.condition) &&\n areAllEquivalent(this.trueCase, stmt.trueCase) &&\n areAllEquivalent(this.falseCase, stmt.falseCase);\n }\n visitStatement(visitor, context) {\n return visitor.visitIfStmt(this, context);\n }\n}\nclass TryCatchStmt extends Statement {\n constructor(bodyStmts, catchStmts, sourceSpan = null, leadingComments) {\n super([], sourceSpan, leadingComments);\n this.bodyStmts = bodyStmts;\n this.catchStmts = catchStmts;\n }\n isEquivalent(stmt) {\n return stmt instanceof TryCatchStmt && areAllEquivalent(this.bodyStmts, stmt.bodyStmts) &&\n areAllEquivalent(this.catchStmts, stmt.catchStmts);\n }\n visitStatement(visitor, context) {\n return visitor.visitTryCatchStmt(this, context);\n }\n}\nclass ThrowStmt extends Statement {\n constructor(error, sourceSpan = null, leadingComments) {\n super([], sourceSpan, leadingComments);\n this.error = error;\n }\n isEquivalent(stmt) {\n return stmt instanceof TryCatchStmt && this.error.isEquivalent(stmt.error);\n }\n visitStatement(visitor, context) {\n return visitor.visitThrowStmt(this, context);\n }\n}\nclass AstTransformer {\n transformExpr(expr, context) {\n return expr;\n }\n transformStmt(stmt, context) {\n return stmt;\n }\n visitReadVarExpr(ast, context) {\n return this.transformExpr(ast, context);\n }\n visitWrappedNodeExpr(ast, context) {\n return this.transformExpr(ast, context);\n }\n visitTypeofExpr(expr, context) {\n return this.transformExpr(new TypeofExpr(expr.expr.visitExpression(this, context), expr.type, expr.sourceSpan), context);\n }\n visitWriteVarExpr(expr, context) {\n return this.transformExpr(new WriteVarExpr(expr.name, expr.value.visitExpression(this, context), expr.type, expr.sourceSpan), context);\n }\n visitWriteKeyExpr(expr, context) {\n return this.transformExpr(new WriteKeyExpr(expr.receiver.visitExpression(this, context), expr.index.visitExpression(this, context), expr.value.visitExpression(this, context), expr.type, expr.sourceSpan), context);\n }\n visitWritePropExpr(expr, context) {\n return this.transformExpr(new WritePropExpr(expr.receiver.visitExpression(this, context), expr.name, expr.value.visitExpression(this, context), expr.type, expr.sourceSpan), context);\n }\n visitInvokeMethodExpr(ast, context) {\n const method = ast.builtin || ast.name;\n return this.transformExpr(new InvokeMethodExpr(ast.receiver.visitExpression(this, context), method, this.visitAllExpressions(ast.args, context), ast.type, ast.sourceSpan), context);\n }\n visitInvokeFunctionExpr(ast, context) {\n return this.transformExpr(new InvokeFunctionExpr(ast.fn.visitExpression(this, context), this.visitAllExpressions(ast.args, context), ast.type, ast.sourceSpan), context);\n }\n visitTaggedTemplateExpr(ast, context) {\n return this.transformExpr(new TaggedTemplateExpr(ast.tag.visitExpression(this, context), new TemplateLiteral(ast.template.elements, ast.template.expressions.map((e) => e.visitExpression(this, context))), ast.type, ast.sourceSpan), context);\n }\n visitInstantiateExpr(ast, context) {\n return this.transformExpr(new InstantiateExpr(ast.classExpr.visitExpression(this, context), this.visitAllExpressions(ast.args, context), ast.type, ast.sourceSpan), context);\n }\n visitLiteralExpr(ast, context) {\n return this.transformExpr(ast, context);\n }\n visitLocalizedString(ast, context) {\n return this.transformExpr(new LocalizedString(ast.metaBlock, ast.messageParts, ast.placeHolderNames, this.visitAllExpressions(ast.expressions, context), ast.sourceSpan), context);\n }\n visitExternalExpr(ast, context) {\n return this.transformExpr(ast, context);\n }\n visitConditionalExpr(ast, context) {\n return this.transformExpr(new ConditionalExpr(ast.condition.visitExpression(this, context), ast.trueCase.visitExpression(this, context), ast.falseCase.visitExpression(this, context), ast.type, ast.sourceSpan), context);\n }\n visitNotExpr(ast, context) {\n return this.transformExpr(new NotExpr(ast.condition.visitExpression(this, context), ast.sourceSpan), context);\n }\n visitAssertNotNullExpr(ast, context) {\n return this.transformExpr(new AssertNotNull(ast.condition.visitExpression(this, context), ast.sourceSpan), context);\n }\n visitCastExpr(ast, context) {\n return this.transformExpr(new CastExpr(ast.value.visitExpression(this, context), ast.type, ast.sourceSpan), context);\n }\n visitFunctionExpr(ast, context) {\n return this.transformExpr(new FunctionExpr(ast.params, this.visitAllStatements(ast.statements, context), ast.type, ast.sourceSpan), context);\n }\n visitUnaryOperatorExpr(ast, context) {\n return this.transformExpr(new UnaryOperatorExpr(ast.operator, ast.expr.visitExpression(this, context), ast.type, ast.sourceSpan), context);\n }\n visitBinaryOperatorExpr(ast, context) {\n return this.transformExpr(new BinaryOperatorExpr(ast.operator, ast.lhs.visitExpression(this, context), ast.rhs.visitExpression(this, context), ast.type, ast.sourceSpan), context);\n }\n visitReadPropExpr(ast, context) {\n return this.transformExpr(new ReadPropExpr(ast.receiver.visitExpression(this, context), ast.name, ast.type, ast.sourceSpan), context);\n }\n visitReadKeyExpr(ast, context) {\n return this.transformExpr(new ReadKeyExpr(ast.receiver.visitExpression(this, context), ast.index.visitExpression(this, context), ast.type, ast.sourceSpan), context);\n }\n visitLiteralArrayExpr(ast, context) {\n return this.transformExpr(new LiteralArrayExpr(this.visitAllExpressions(ast.entries, context), ast.type, ast.sourceSpan), context);\n }\n visitLiteralMapExpr(ast, context) {\n const entries = ast.entries.map((entry) => new LiteralMapEntry(entry.key, entry.value.visitExpression(this, context), entry.quoted));\n const mapType = new MapType(ast.valueType);\n return this.transformExpr(new LiteralMapExpr(entries, mapType, ast.sourceSpan), context);\n }\n visitCommaExpr(ast, context) {\n return this.transformExpr(new CommaExpr(this.visitAllExpressions(ast.parts, context), ast.sourceSpan), context);\n }\n visitAllExpressions(exprs, context) {\n return exprs.map(expr => expr.visitExpression(this, context));\n }\n visitDeclareVarStmt(stmt, context) {\n const value = stmt.value && stmt.value.visitExpression(this, context);\n return this.transformStmt(new DeclareVarStmt(stmt.name, value, stmt.type, stmt.modifiers, stmt.sourceSpan, stmt.leadingComments), context);\n }\n visitDeclareFunctionStmt(stmt, context) {\n return this.transformStmt(new DeclareFunctionStmt(stmt.name, stmt.params, this.visitAllStatements(stmt.statements, context), stmt.type, stmt.modifiers, stmt.sourceSpan, stmt.leadingComments), context);\n }\n visitExpressionStmt(stmt, context) {\n return this.transformStmt(new ExpressionStatement(stmt.expr.visitExpression(this, context), stmt.sourceSpan, stmt.leadingComments), context);\n }\n visitReturnStmt(stmt, context) {\n return this.transformStmt(new ReturnStatement(stmt.value.visitExpression(this, context), stmt.sourceSpan, stmt.leadingComments), context);\n }\n visitDeclareClassStmt(stmt, context) {\n const parent = stmt.parent.visitExpression(this, context);\n const getters = stmt.getters.map(getter => new ClassGetter(getter.name, this.visitAllStatements(getter.body, context), getter.type, getter.modifiers));\n const ctorMethod = stmt.constructorMethod &&\n new ClassMethod(stmt.constructorMethod.name, stmt.constructorMethod.params, this.visitAllStatements(stmt.constructorMethod.body, context), stmt.constructorMethod.type, stmt.constructorMethod.modifiers);\n const methods = stmt.methods.map(method => new ClassMethod(method.name, method.params, this.visitAllStatements(method.body, context), method.type, method.modifiers));\n return this.transformStmt(new ClassStmt(stmt.name, parent, stmt.fields, getters, ctorMethod, methods, stmt.modifiers, stmt.sourceSpan), context);\n }\n visitIfStmt(stmt, context) {\n return this.transformStmt(new IfStmt(stmt.condition.visitExpression(this, context), this.visitAllStatements(stmt.trueCase, context), this.visitAllStatements(stmt.falseCase, context), stmt.sourceSpan, stmt.leadingComments), context);\n }\n visitTryCatchStmt(stmt, context) {\n return this.transformStmt(new TryCatchStmt(this.visitAllStatements(stmt.bodyStmts, context), this.visitAllStatements(stmt.catchStmts, context), stmt.sourceSpan, stmt.leadingComments), context);\n }\n visitThrowStmt(stmt, context) {\n return this.transformStmt(new ThrowStmt(stmt.error.visitExpression(this, context), stmt.sourceSpan, stmt.leadingComments), context);\n }\n visitAllStatements(stmts, context) {\n return stmts.map(stmt => stmt.visitStatement(this, context));\n }\n}\nclass RecursiveAstVisitor {\n visitType(ast, context) {\n return ast;\n }\n visitExpression(ast, context) {\n if (ast.type) {\n ast.type.visitType(this, context);\n }\n return ast;\n }\n visitBuiltinType(type, context) {\n return this.visitType(type, context);\n }\n visitExpressionType(type, context) {\n type.value.visitExpression(this, context);\n if (type.typeParams !== null) {\n type.typeParams.forEach(param => this.visitType(param, context));\n }\n return this.visitType(type, context);\n }\n visitArrayType(type, context) {\n return this.visitType(type, context);\n }\n visitMapType(type, context) {\n return this.visitType(type, context);\n }\n visitWrappedNodeExpr(ast, context) {\n return ast;\n }\n visitTypeofExpr(ast, context) {\n return this.visitExpression(ast, context);\n }\n visitReadVarExpr(ast, context) {\n return this.visitExpression(ast, context);\n }\n visitWriteVarExpr(ast, context) {\n ast.value.visitExpression(this, context);\n return this.visitExpression(ast, context);\n }\n visitWriteKeyExpr(ast, context) {\n ast.receiver.visitExpression(this, context);\n ast.index.visitExpression(this, context);\n ast.value.visitExpression(this, context);\n return this.visitExpression(ast, context);\n }\n visitWritePropExpr(ast, context) {\n ast.receiver.visitExpression(this, context);\n ast.value.visitExpression(this, context);\n return this.visitExpression(ast, context);\n }\n visitInvokeMethodExpr(ast, context) {\n ast.receiver.visitExpression(this, context);\n this.visitAllExpressions(ast.args, context);\n return this.visitExpression(ast, context);\n }\n visitInvokeFunctionExpr(ast, context) {\n ast.fn.visitExpression(this, context);\n this.visitAllExpressions(ast.args, context);\n return this.visitExpression(ast, context);\n }\n visitTaggedTemplateExpr(ast, context) {\n ast.tag.visitExpression(this, context);\n this.visitAllExpressions(ast.template.expressions, context);\n return this.visitExpression(ast, context);\n }\n visitInstantiateExpr(ast, context) {\n ast.classExpr.visitExpression(this, context);\n this.visitAllExpressions(ast.args, context);\n return this.visitExpression(ast, context);\n }\n visitLiteralExpr(ast, context) {\n return this.visitExpression(ast, context);\n }\n visitLocalizedString(ast, context) {\n return this.visitExpression(ast, context);\n }\n visitExternalExpr(ast, context) {\n if (ast.typeParams) {\n ast.typeParams.forEach(type => type.visitType(this, context));\n }\n return this.visitExpression(ast, context);\n }\n visitConditionalExpr(ast, context) {\n ast.condition.visitExpression(this, context);\n ast.trueCase.visitExpression(this, context);\n ast.falseCase.visitExpression(this, context);\n return this.visitExpression(ast, context);\n }\n visitNotExpr(ast, context) {\n ast.condition.visitExpression(this, context);\n return this.visitExpression(ast, context);\n }\n visitAssertNotNullExpr(ast, context) {\n ast.condition.visitExpression(this, context);\n return this.visitExpression(ast, context);\n }\n visitCastExpr(ast, context) {\n ast.value.visitExpression(this, context);\n return this.visitExpression(ast, context);\n }\n visitFunctionExpr(ast, context) {\n this.visitAllStatements(ast.statements, context);\n return this.visitExpression(ast, context);\n }\n visitUnaryOperatorExpr(ast, context) {\n ast.expr.visitExpression(this, context);\n return this.visitExpression(ast, context);\n }\n visitBinaryOperatorExpr(ast, context) {\n ast.lhs.visitExpression(this, context);\n ast.rhs.visitExpression(this, context);\n return this.visitExpression(ast, context);\n }\n visitReadPropExpr(ast, context) {\n ast.receiver.visitExpression(this, context);\n return this.visitExpression(ast, context);\n }\n visitReadKeyExpr(ast, context) {\n ast.receiver.visitExpression(this, context);\n ast.index.visitExpression(this, context);\n return this.visitExpression(ast, context);\n }\n visitLiteralArrayExpr(ast, context) {\n this.visitAllExpressions(ast.entries, context);\n return this.visitExpression(ast, context);\n }\n visitLiteralMapExpr(ast, context) {\n ast.entries.forEach((entry) => entry.value.visitExpression(this, context));\n return this.visitExpression(ast, context);\n }\n visitCommaExpr(ast, context) {\n this.visitAllExpressions(ast.parts, context);\n return this.visitExpression(ast, context);\n }\n visitAllExpressions(exprs, context) {\n exprs.forEach(expr => expr.visitExpression(this, context));\n }\n visitDeclareVarStmt(stmt, context) {\n if (stmt.value) {\n stmt.value.visitExpression(this, context);\n }\n if (stmt.type) {\n stmt.type.visitType(this, context);\n }\n return stmt;\n }\n visitDeclareFunctionStmt(stmt, context) {\n this.visitAllStatements(stmt.statements, context);\n if (stmt.type) {\n stmt.type.visitType(this, context);\n }\n return stmt;\n }\n visitExpressionStmt(stmt, context) {\n stmt.expr.visitExpression(this, context);\n return stmt;\n }\n visitReturnStmt(stmt, context) {\n stmt.value.visitExpression(this, context);\n return stmt;\n }\n visitDeclareClassStmt(stmt, context) {\n stmt.parent.visitExpression(this, context);\n stmt.getters.forEach(getter => this.visitAllStatements(getter.body, context));\n if (stmt.constructorMethod) {\n this.visitAllStatements(stmt.constructorMethod.body, context);\n }\n stmt.methods.forEach(method => this.visitAllStatements(method.body, context));\n return stmt;\n }\n visitIfStmt(stmt, context) {\n stmt.condition.visitExpression(this, context);\n this.visitAllStatements(stmt.trueCase, context);\n this.visitAllStatements(stmt.falseCase, context);\n return stmt;\n }\n visitTryCatchStmt(stmt, context) {\n this.visitAllStatements(stmt.bodyStmts, context);\n this.visitAllStatements(stmt.catchStmts, context);\n return stmt;\n }\n visitThrowStmt(stmt, context) {\n stmt.error.visitExpression(this, context);\n return stmt;\n }\n visitAllStatements(stmts, context) {\n stmts.forEach(stmt => stmt.visitStatement(this, context));\n }\n}\nfunction findReadVarNames(stmts) {\n const visitor = new _ReadVarVisitor();\n visitor.visitAllStatements(stmts, null);\n return visitor.varNames;\n}\nclass _ReadVarVisitor extends RecursiveAstVisitor {\n constructor() {\n super(...arguments);\n this.varNames = new Set();\n }\n visitDeclareFunctionStmt(stmt, context) {\n // Don't descend into nested functions\n return stmt;\n }\n visitDeclareClassStmt(stmt, context) {\n // Don't descend into nested classes\n return stmt;\n }\n visitReadVarExpr(ast, context) {\n if (ast.name) {\n this.varNames.add(ast.name);\n }\n return null;\n }\n}\nfunction collectExternalReferences(stmts) {\n const visitor = new _FindExternalReferencesVisitor();\n visitor.visitAllStatements(stmts, null);\n return visitor.externalReferences;\n}\nclass _FindExternalReferencesVisitor extends RecursiveAstVisitor {\n constructor() {\n super(...arguments);\n this.externalReferences = [];\n }\n visitExternalExpr(e, context) {\n this.externalReferences.push(e.value);\n return super.visitExternalExpr(e, context);\n }\n}\nfunction applySourceSpanToStatementIfNeeded(stmt, sourceSpan) {\n if (!sourceSpan) {\n return stmt;\n }\n const transformer = new _ApplySourceSpanTransformer(sourceSpan);\n return stmt.visitStatement(transformer, null);\n}\nfunction applySourceSpanToExpressionIfNeeded(expr, sourceSpan) {\n if (!sourceSpan) {\n return expr;\n }\n const transformer = new _ApplySourceSpanTransformer(sourceSpan);\n return expr.visitExpression(transformer, null);\n}\nclass _ApplySourceSpanTransformer extends AstTransformer {\n constructor(sourceSpan) {\n super();\n this.sourceSpan = sourceSpan;\n }\n _clone(obj) {\n const clone = Object.create(obj.constructor.prototype);\n for (let prop of Object.keys(obj)) {\n clone[prop] = obj[prop];\n }\n return clone;\n }\n transformExpr(expr, context) {\n if (!expr.sourceSpan) {\n expr = this._clone(expr);\n expr.sourceSpan = this.sourceSpan;\n }\n return expr;\n }\n transformStmt(stmt, context) {\n if (!stmt.sourceSpan) {\n stmt = this._clone(stmt);\n stmt.sourceSpan = this.sourceSpan;\n }\n return stmt;\n }\n}\nfunction leadingComment(text, multiline = false, trailingNewline = true) {\n return new LeadingComment(text, multiline, trailingNewline);\n}\nfunction jsDocComment(tags = []) {\n return new JSDocComment(tags);\n}\nfunction variable(name, type, sourceSpan) {\n return new ReadVarExpr(name, type, sourceSpan);\n}\nfunction importExpr(id, typeParams = null, sourceSpan) {\n return new ExternalExpr(id, null, typeParams, sourceSpan);\n}\nfunction importType(id, typeParams, typeModifiers) {\n return id != null ? expressionType(importExpr(id, typeParams, null), typeModifiers) : null;\n}\nfunction expressionType(expr, typeModifiers, typeParams) {\n return new ExpressionType(expr, typeModifiers, typeParams);\n}\nfunction typeofExpr(expr) {\n return new TypeofExpr(expr);\n}\nfunction literalArr(values, type, sourceSpan) {\n return new LiteralArrayExpr(values, type, sourceSpan);\n}\nfunction literalMap(values, type = null) {\n return new LiteralMapExpr(values.map(e => new LiteralMapEntry(e.key, e.value, e.quoted)), type, null);\n}\nfunction unary(operator, expr, type, sourceSpan) {\n return new UnaryOperatorExpr(operator, expr, type, sourceSpan);\n}\nfunction not(expr, sourceSpan) {\n return new NotExpr(expr, sourceSpan);\n}\nfunction assertNotNull(expr, sourceSpan) {\n return new AssertNotNull(expr, sourceSpan);\n}\nfunction fn(params, body, type, sourceSpan, name) {\n return new FunctionExpr(params, body, type, sourceSpan, name);\n}\nfunction ifStmt(condition, thenClause, elseClause, sourceSpan, leadingComments) {\n return new IfStmt(condition, thenClause, elseClause, sourceSpan, leadingComments);\n}\nfunction taggedTemplate(tag, template, type, sourceSpan) {\n return new TaggedTemplateExpr(tag, template, type, sourceSpan);\n}\nfunction literal(value, type, sourceSpan) {\n return new LiteralExpr(value, type, sourceSpan);\n}\nfunction localizedString(metaBlock, messageParts, placeholderNames, expressions, sourceSpan) {\n return new LocalizedString(metaBlock, messageParts, placeholderNames, expressions, sourceSpan);\n}\nfunction isNull(exp) {\n return exp instanceof LiteralExpr && exp.value === null;\n}\n/*\n * Serializes a `Tag` into a string.\n * Returns a string like \" @foo {bar} baz\" (note the leading whitespace before `@foo`).\n */\nfunction tagToString(tag) {\n let out = '';\n if (tag.tagName) {\n out += ` @${tag.tagName}`;\n }\n if (tag.text) {\n if (tag.text.match(/\\/\\*|\\*\\//)) {\n throw new Error('JSDoc text cannot contain \"/*\" and \"*/\"');\n }\n out += ' ' + tag.text.replace(/@/g, '\\\\@');\n }\n return out;\n}\nfunction serializeTags(tags) {\n if (tags.length === 0)\n return '';\n if (tags.length === 1 && tags[0].tagName && !tags[0].text) {\n // The JSDOC comment is a single simple tag: e.g `/** @tagname */`.\n return `*${tagToString(tags[0])} `;\n }\n let out = '*\\n';\n for (const tag of tags) {\n out += ' *';\n // If the tagToString is multi-line, insert \" * \" prefixes on lines.\n out += tagToString(tag).replace(/\\n/g, '\\n * ');\n out += '\\n';\n }\n out += ' ';\n return out;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst DASH_CASE_REGEXP = /-+([a-z0-9])/g;\nfunction dashCaseToCamelCase(input) {\n return input.replace(DASH_CASE_REGEXP, (...m) => m[1].toUpperCase());\n}\nfunction splitAtColon(input, defaultValues) {\n return _splitAt(input, ':', defaultValues);\n}\nfunction splitAtPeriod(input, defaultValues) {\n return _splitAt(input, '.', defaultValues);\n}\nfunction _splitAt(input, character, defaultValues) {\n const characterIndex = input.indexOf(character);\n if (characterIndex == -1)\n return defaultValues;\n return [input.slice(0, characterIndex).trim(), input.slice(characterIndex + 1).trim()];\n}\nfunction visitValue(value, visitor, context) {\n if (Array.isArray(value)) {\n return visitor.visitArray(value, context);\n }\n if (isStrictStringMap(value)) {\n return visitor.visitStringMap(value, context);\n }\n if (value == null || typeof value == 'string' || typeof value == 'number' ||\n typeof value == 'boolean') {\n return visitor.visitPrimitive(value, context);\n }\n return visitor.visitOther(value, context);\n}\nfunction isDefined(val) {\n return val !== null && val !== undefined;\n}\nfunction noUndefined(val) {\n return val === undefined ? null : val;\n}\nclass ValueTransformer {\n visitArray(arr, context) {\n return arr.map(value => visitValue(value, this, context));\n }\n visitStringMap(map, context) {\n const result = {};\n Object.keys(map).forEach(key => {\n result[key] = visitValue(map[key], this, context);\n });\n return result;\n }\n visitPrimitive(value, context) {\n return value;\n }\n visitOther(value, context) {\n return value;\n }\n}\nconst SyncAsync = {\n assertSync: (value) => {\n if (isPromise(value)) {\n throw new Error(`Illegal state: value cannot be a promise`);\n }\n return value;\n },\n then: (value, cb) => {\n return isPromise(value) ? value.then(cb) : cb(value);\n },\n all: (syncAsyncValues) => {\n return syncAsyncValues.some(isPromise) ? Promise.all(syncAsyncValues) : syncAsyncValues;\n }\n};\nfunction error(msg) {\n throw new Error(`Internal Error: ${msg}`);\n}\nfunction syntaxError(msg, parseErrors) {\n const error = Error(msg);\n error[ERROR_SYNTAX_ERROR] = true;\n if (parseErrors)\n error[ERROR_PARSE_ERRORS] = parseErrors;\n return error;\n}\nconst ERROR_SYNTAX_ERROR = 'ngSyntaxError';\nconst ERROR_PARSE_ERRORS = 'ngParseErrors';\nfunction isSyntaxError(error) {\n return error[ERROR_SYNTAX_ERROR];\n}\nfunction getParseErrors(error) {\n return error[ERROR_PARSE_ERRORS] || [];\n}\n// Escape characters that have a special meaning in Regular Expressions\nfunction escapeRegExp(s) {\n return s.replace(/([.*+?^=!:${}()|[\\]\\/\\\\])/g, '\\\\$1');\n}\nconst STRING_MAP_PROTO = Object.getPrototypeOf({});\nfunction isStrictStringMap(obj) {\n return typeof obj === 'object' && obj !== null && Object.getPrototypeOf(obj) === STRING_MAP_PROTO;\n}\nfunction utf8Encode(str) {\n let encoded = [];\n for (let index = 0; index < str.length; index++) {\n let codePoint = str.charCodeAt(index);\n // decode surrogate\n // see https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae\n if (codePoint >= 0xd800 && codePoint <= 0xdbff && str.length > (index + 1)) {\n const low = str.charCodeAt(index + 1);\n if (low >= 0xdc00 && low <= 0xdfff) {\n index++;\n codePoint = ((codePoint - 0xd800) << 10) + low - 0xdc00 + 0x10000;\n }\n }\n if (codePoint <= 0x7f) {\n encoded.push(codePoint);\n }\n else if (codePoint <= 0x7ff) {\n encoded.push(((codePoint >> 6) & 0x1F) | 0xc0, (codePoint & 0x3f) | 0x80);\n }\n else if (codePoint <= 0xffff) {\n encoded.push((codePoint >> 12) | 0xe0, ((codePoint >> 6) & 0x3f) | 0x80, (codePoint & 0x3f) | 0x80);\n }\n else if (codePoint <= 0x1fffff) {\n encoded.push(((codePoint >> 18) & 0x07) | 0xf0, ((codePoint >> 12) & 0x3f) | 0x80, ((codePoint >> 6) & 0x3f) | 0x80, (codePoint & 0x3f) | 0x80);\n }\n }\n return encoded;\n}\nfunction stringify(token) {\n if (typeof token === 'string') {\n return token;\n }\n if (Array.isArray(token)) {\n return '[' + token.map(stringify).join(', ') + ']';\n }\n if (token == null) {\n return '' + token;\n }\n if (token.overriddenName) {\n return `${token.overriddenName}`;\n }\n if (token.name) {\n return `${token.name}`;\n }\n if (!token.toString) {\n return 'object';\n }\n // WARNING: do not try to `JSON.stringify(token)` here\n // see https://github.com/angular/angular/issues/23440\n const res = token.toString();\n if (res == null) {\n return '' + res;\n }\n const newLineIndex = res.indexOf('\\n');\n return newLineIndex === -1 ? res : res.substring(0, newLineIndex);\n}\n/**\n * Lazily retrieves the reference value from a forwardRef.\n */\nfunction resolveForwardRef(type) {\n if (typeof type === 'function' && type.hasOwnProperty('__forward_ref__')) {\n return type();\n }\n else {\n return type;\n }\n}\n/**\n * Determine if the argument is shaped like a Promise\n */\nfunction isPromise(obj) {\n // allow any Promise/A+ compliant thenable.\n // It's up to the caller to ensure that obj.then conforms to the spec\n return !!obj && typeof obj.then === 'function';\n}\nclass Version {\n constructor(full) {\n this.full = full;\n const splits = full.split('.');\n this.major = splits[0];\n this.minor = splits[1];\n this.patch = splits.slice(2).join('.');\n }\n}\nconst __window = typeof window !== 'undefined' && window;\nconst __self = typeof self !== 'undefined' && typeof WorkerGlobalScope !== 'undefined' &&\n self instanceof WorkerGlobalScope && self;\nconst __global = typeof global !== 'undefined' && global;\n// Check __global first, because in Node tests both __global and __window may be defined and _global\n// should be __global in that case.\nconst _global = __global || __window || __self;\nfunction newArray(size, value) {\n const list = [];\n for (let i = 0; i < size; i++) {\n list.push(value);\n }\n return list;\n}\n/**\n * Partitions a given array into 2 arrays, based on a boolean value returned by the condition\n * function.\n *\n * @param arr Input array that should be partitioned\n * @param conditionFn Condition function that is called for each item in a given array and returns a\n * boolean value.\n */\nfunction partitionArray(arr, conditionFn) {\n const truthy = [];\n const falsy = [];\n for (const item of arr) {\n (conditionFn(item) ? truthy : falsy).push(item);\n }\n return [truthy, falsy];\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst CONSTANT_PREFIX = '_c';\n/**\n * `ConstantPool` tries to reuse literal factories when two or more literals are identical.\n * We determine whether literals are identical by creating a key out of their AST using the\n * `KeyVisitor`. This constant is used to replace dynamic expressions which can't be safely\n * converted into a key. E.g. given an expression `{foo: bar()}`, since we don't know what\n * the result of `bar` will be, we create a key that looks like `{foo: }`. Note\n * that we use a variable, rather than something like `null` in order to avoid collisions.\n */\nconst UNKNOWN_VALUE_KEY = variable('');\n/**\n * Context to use when producing a key.\n *\n * This ensures we see the constant not the reference variable when producing\n * a key.\n */\nconst KEY_CONTEXT = {};\n/**\n * Generally all primitive values are excluded from the `ConstantPool`, but there is an exclusion\n * for strings that reach a certain length threshold. This constant defines the length threshold for\n * strings.\n */\nconst POOL_INCLUSION_LENGTH_THRESHOLD_FOR_STRINGS = 50;\n/**\n * A node that is a place-holder that allows the node to be replaced when the actual\n * node is known.\n *\n * This allows the constant pool to change an expression from a direct reference to\n * a constant to a shared constant. It returns a fix-up node that is later allowed to\n * change the referenced expression.\n */\nclass FixupExpression extends Expression {\n constructor(resolved) {\n super(resolved.type);\n this.resolved = resolved;\n this.original = resolved;\n }\n visitExpression(visitor, context) {\n if (context === KEY_CONTEXT) {\n // When producing a key we want to traverse the constant not the\n // variable used to refer to it.\n return this.original.visitExpression(visitor, context);\n }\n else {\n return this.resolved.visitExpression(visitor, context);\n }\n }\n isEquivalent(e) {\n return e instanceof FixupExpression && this.resolved.isEquivalent(e.resolved);\n }\n isConstant() {\n return true;\n }\n fixup(expression) {\n this.resolved = expression;\n this.shared = true;\n }\n}\n/**\n * A constant pool allows a code emitter to share constant in an output context.\n *\n * The constant pool also supports sharing access to ivy definitions references.\n */\nclass ConstantPool {\n constructor(isClosureCompilerEnabled = false) {\n this.isClosureCompilerEnabled = isClosureCompilerEnabled;\n this.statements = [];\n this.literals = new Map();\n this.literalFactories = new Map();\n this.injectorDefinitions = new Map();\n this.directiveDefinitions = new Map();\n this.componentDefinitions = new Map();\n this.pipeDefinitions = new Map();\n this.nextNameIndex = 0;\n }\n getConstLiteral(literal, forceShared) {\n if ((literal instanceof LiteralExpr && !isLongStringLiteral(literal)) ||\n literal instanceof FixupExpression) {\n // Do no put simple literals into the constant pool or try to produce a constant for a\n // reference to a constant.\n return literal;\n }\n const key = this.keyOf(literal);\n let fixup = this.literals.get(key);\n let newValue = false;\n if (!fixup) {\n fixup = new FixupExpression(literal);\n this.literals.set(key, fixup);\n newValue = true;\n }\n if ((!newValue && !fixup.shared) || (newValue && forceShared)) {\n // Replace the expression with a variable\n const name = this.freshName();\n let definition;\n let usage;\n if (this.isClosureCompilerEnabled && isLongStringLiteral(literal)) {\n // For string literals, Closure will **always** inline the string at\n // **all** usages, duplicating it each time. For large strings, this\n // unnecessarily bloats bundle size. To work around this restriction, we\n // wrap the string in a function, and call that function for each usage.\n // This tricks Closure into using inline logic for functions instead of\n // string literals. Function calls are only inlined if the body is small\n // enough to be worth it. By doing this, very large strings will be\n // shared across multiple usages, rather than duplicating the string at\n // each usage site.\n //\n // const myStr = function() { return \"very very very long string\"; };\n // const usage1 = myStr();\n // const usage2 = myStr();\n definition = variable(name).set(new FunctionExpr([], // Params.\n [\n // Statements.\n new ReturnStatement(literal),\n ]));\n usage = variable(name).callFn([]);\n }\n else {\n // Just declare and use the variable directly, without a function call\n // indirection. This saves a few bytes and avoids an unncessary call.\n definition = variable(name).set(literal);\n usage = variable(name);\n }\n this.statements.push(definition.toDeclStmt(INFERRED_TYPE, [StmtModifier.Final]));\n fixup.fixup(usage);\n }\n return fixup;\n }\n getDefinition(type, kind, ctx, forceShared = false) {\n const definitions = this.definitionsOf(kind);\n let fixup = definitions.get(type);\n let newValue = false;\n if (!fixup) {\n const property = this.propertyNameOf(kind);\n fixup = new FixupExpression(ctx.importExpr(type).prop(property));\n definitions.set(type, fixup);\n newValue = true;\n }\n if ((!newValue && !fixup.shared) || (newValue && forceShared)) {\n const name = this.freshName();\n this.statements.push(variable(name).set(fixup.resolved).toDeclStmt(INFERRED_TYPE, [StmtModifier.Final]));\n fixup.fixup(variable(name));\n }\n return fixup;\n }\n getLiteralFactory(literal) {\n // Create a pure function that builds an array of a mix of constant and variable expressions\n if (literal instanceof LiteralArrayExpr) {\n const argumentsForKey = literal.entries.map(e => e.isConstant() ? e : UNKNOWN_VALUE_KEY);\n const key = this.keyOf(literalArr(argumentsForKey));\n return this._getLiteralFactory(key, literal.entries, entries => literalArr(entries));\n }\n else {\n const expressionForKey = literalMap(literal.entries.map(e => ({\n key: e.key,\n value: e.value.isConstant() ? e.value : UNKNOWN_VALUE_KEY,\n quoted: e.quoted\n })));\n const key = this.keyOf(expressionForKey);\n return this._getLiteralFactory(key, literal.entries.map(e => e.value), entries => literalMap(entries.map((value, index) => ({\n key: literal.entries[index].key,\n value,\n quoted: literal.entries[index].quoted\n }))));\n }\n }\n _getLiteralFactory(key, values, resultMap) {\n let literalFactory = this.literalFactories.get(key);\n const literalFactoryArguments = values.filter((e => !e.isConstant()));\n if (!literalFactory) {\n const resultExpressions = values.map((e, index) => e.isConstant() ? this.getConstLiteral(e, true) : variable(`a${index}`));\n const parameters = resultExpressions.filter(isVariable).map(e => new FnParam(e.name, DYNAMIC_TYPE));\n const pureFunctionDeclaration = fn(parameters, [new ReturnStatement(resultMap(resultExpressions))], INFERRED_TYPE);\n const name = this.freshName();\n this.statements.push(variable(name).set(pureFunctionDeclaration).toDeclStmt(INFERRED_TYPE, [\n StmtModifier.Final\n ]));\n literalFactory = variable(name);\n this.literalFactories.set(key, literalFactory);\n }\n return { literalFactory, literalFactoryArguments };\n }\n /**\n * Produce a unique name.\n *\n * The name might be unique among different prefixes if any of the prefixes end in\n * a digit so the prefix should be a constant string (not based on user input) and\n * must not end in a digit.\n */\n uniqueName(prefix) {\n return `${prefix}${this.nextNameIndex++}`;\n }\n definitionsOf(kind) {\n switch (kind) {\n case 2 /* Component */:\n return this.componentDefinitions;\n case 1 /* Directive */:\n return this.directiveDefinitions;\n case 0 /* Injector */:\n return this.injectorDefinitions;\n case 3 /* Pipe */:\n return this.pipeDefinitions;\n }\n error(`Unknown definition kind ${kind}`);\n return this.componentDefinitions;\n }\n propertyNameOf(kind) {\n switch (kind) {\n case 2 /* Component */:\n return 'ɵcmp';\n case 1 /* Directive */:\n return 'ɵdir';\n case 0 /* Injector */:\n return 'ɵinj';\n case 3 /* Pipe */:\n return 'ɵpipe';\n }\n error(`Unknown definition kind ${kind}`);\n return '';\n }\n freshName() {\n return this.uniqueName(CONSTANT_PREFIX);\n }\n keyOf(expression) {\n return expression.visitExpression(new KeyVisitor(), KEY_CONTEXT);\n }\n}\n/**\n * Visitor used to determine if 2 expressions are equivalent and can be shared in the\n * `ConstantPool`.\n *\n * When the id (string) generated by the visitor is equal, expressions are considered equivalent.\n */\nclass KeyVisitor {\n constructor() {\n this.visitWrappedNodeExpr = invalid;\n this.visitWriteVarExpr = invalid;\n this.visitWriteKeyExpr = invalid;\n this.visitWritePropExpr = invalid;\n this.visitInvokeMethodExpr = invalid;\n this.visitInvokeFunctionExpr = invalid;\n this.visitTaggedTemplateExpr = invalid;\n this.visitInstantiateExpr = invalid;\n this.visitConditionalExpr = invalid;\n this.visitNotExpr = invalid;\n this.visitAssertNotNullExpr = invalid;\n this.visitCastExpr = invalid;\n this.visitFunctionExpr = invalid;\n this.visitUnaryOperatorExpr = invalid;\n this.visitBinaryOperatorExpr = invalid;\n this.visitReadPropExpr = invalid;\n this.visitReadKeyExpr = invalid;\n this.visitCommaExpr = invalid;\n this.visitLocalizedString = invalid;\n }\n visitLiteralExpr(ast) {\n return `${typeof ast.value === 'string' ? '\"' + ast.value + '\"' : ast.value}`;\n }\n visitLiteralArrayExpr(ast, context) {\n return `[${ast.entries.map(entry => entry.visitExpression(this, context)).join(',')}]`;\n }\n visitLiteralMapExpr(ast, context) {\n const mapKey = (entry) => {\n const quote = entry.quoted ? '\"' : '';\n return `${quote}${entry.key}${quote}`;\n };\n const mapEntry = (entry) => `${mapKey(entry)}:${entry.value.visitExpression(this, context)}`;\n return `{${ast.entries.map(mapEntry).join(',')}`;\n }\n visitExternalExpr(ast) {\n return ast.value.moduleName ? `EX:${ast.value.moduleName}:${ast.value.name}` :\n `EX:${ast.value.runtime.name}`;\n }\n visitReadVarExpr(node) {\n return `VAR:${node.name}`;\n }\n visitTypeofExpr(node, context) {\n return `TYPEOF:${node.expr.visitExpression(this, context)}`;\n }\n}\nfunction invalid(arg) {\n throw new Error(`Invalid state: Visitor ${this.constructor.name} doesn't handle ${arg.constructor.name}`);\n}\nfunction isVariable(e) {\n return e instanceof ReadVarExpr;\n}\nfunction isLongStringLiteral(expr) {\n return expr instanceof LiteralExpr && typeof expr.value === 'string' &&\n expr.value.length >= POOL_INCLUSION_LENGTH_THRESHOLD_FOR_STRINGS;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst CORE = '@angular/core';\nclass Identifiers {\n}\nIdentifiers.ANALYZE_FOR_ENTRY_COMPONENTS = {\n name: 'ANALYZE_FOR_ENTRY_COMPONENTS',\n moduleName: CORE,\n};\nIdentifiers.ElementRef = { name: 'ElementRef', moduleName: CORE };\nIdentifiers.NgModuleRef = { name: 'NgModuleRef', moduleName: CORE };\nIdentifiers.ViewContainerRef = { name: 'ViewContainerRef', moduleName: CORE };\nIdentifiers.ChangeDetectorRef = {\n name: 'ChangeDetectorRef',\n moduleName: CORE,\n};\nIdentifiers.QueryList = { name: 'QueryList', moduleName: CORE };\nIdentifiers.TemplateRef = { name: 'TemplateRef', moduleName: CORE };\nIdentifiers.Renderer2 = { name: 'Renderer2', moduleName: CORE };\nIdentifiers.CodegenComponentFactoryResolver = {\n name: 'ɵCodegenComponentFactoryResolver',\n moduleName: CORE,\n};\nIdentifiers.ComponentFactoryResolver = {\n name: 'ComponentFactoryResolver',\n moduleName: CORE,\n};\nIdentifiers.ComponentFactory = { name: 'ComponentFactory', moduleName: CORE };\nIdentifiers.ComponentRef = { name: 'ComponentRef', moduleName: CORE };\nIdentifiers.NgModuleFactory = { name: 'NgModuleFactory', moduleName: CORE };\nIdentifiers.createModuleFactory = {\n name: 'ɵcmf',\n moduleName: CORE,\n};\nIdentifiers.moduleDef = {\n name: 'ɵmod',\n moduleName: CORE,\n};\nIdentifiers.moduleProviderDef = {\n name: 'ɵmpd',\n moduleName: CORE,\n};\nIdentifiers.RegisterModuleFactoryFn = {\n name: 'ɵregisterModuleFactory',\n moduleName: CORE,\n};\nIdentifiers.inject = { name: 'ɵɵinject', moduleName: CORE };\nIdentifiers.directiveInject = { name: 'ɵɵdirectiveInject', moduleName: CORE };\nIdentifiers.INJECTOR = { name: 'INJECTOR', moduleName: CORE };\nIdentifiers.Injector = { name: 'Injector', moduleName: CORE };\nIdentifiers.ɵɵdefineInjectable = { name: 'ɵɵdefineInjectable', moduleName: CORE };\nIdentifiers.InjectableDef = { name: 'ɵɵInjectableDef', moduleName: CORE };\nIdentifiers.ViewEncapsulation = {\n name: 'ViewEncapsulation',\n moduleName: CORE,\n};\nIdentifiers.ChangeDetectionStrategy = {\n name: 'ChangeDetectionStrategy',\n moduleName: CORE,\n};\nIdentifiers.SecurityContext = {\n name: 'SecurityContext',\n moduleName: CORE,\n};\nIdentifiers.LOCALE_ID = { name: 'LOCALE_ID', moduleName: CORE };\nIdentifiers.TRANSLATIONS_FORMAT = {\n name: 'TRANSLATIONS_FORMAT',\n moduleName: CORE,\n};\nIdentifiers.inlineInterpolate = {\n name: 'ɵinlineInterpolate',\n moduleName: CORE,\n};\nIdentifiers.interpolate = { name: 'ɵinterpolate', moduleName: CORE };\nIdentifiers.EMPTY_ARRAY = { name: 'ɵEMPTY_ARRAY', moduleName: CORE };\nIdentifiers.EMPTY_MAP = { name: 'ɵEMPTY_MAP', moduleName: CORE };\nIdentifiers.Renderer = { name: 'Renderer', moduleName: CORE };\nIdentifiers.viewDef = { name: 'ɵvid', moduleName: CORE };\nIdentifiers.elementDef = { name: 'ɵeld', moduleName: CORE };\nIdentifiers.anchorDef = { name: 'ɵand', moduleName: CORE };\nIdentifiers.textDef = { name: 'ɵted', moduleName: CORE };\nIdentifiers.directiveDef = { name: 'ɵdid', moduleName: CORE };\nIdentifiers.providerDef = { name: 'ɵprd', moduleName: CORE };\nIdentifiers.queryDef = { name: 'ɵqud', moduleName: CORE };\nIdentifiers.pureArrayDef = { name: 'ɵpad', moduleName: CORE };\nIdentifiers.pureObjectDef = { name: 'ɵpod', moduleName: CORE };\nIdentifiers.purePipeDef = { name: 'ɵppd', moduleName: CORE };\nIdentifiers.pipeDef = { name: 'ɵpid', moduleName: CORE };\nIdentifiers.nodeValue = { name: 'ɵnov', moduleName: CORE };\nIdentifiers.ngContentDef = { name: 'ɵncd', moduleName: CORE };\nIdentifiers.unwrapValue = { name: 'ɵunv', moduleName: CORE };\nIdentifiers.createRendererType2 = { name: 'ɵcrt', moduleName: CORE };\n// type only\nIdentifiers.RendererType2 = {\n name: 'RendererType2',\n moduleName: CORE,\n};\n// type only\nIdentifiers.ViewDefinition = {\n name: 'ɵViewDefinition',\n moduleName: CORE,\n};\nIdentifiers.createComponentFactory = { name: 'ɵccf', moduleName: CORE };\nIdentifiers.setClassMetadata = { name: 'ɵsetClassMetadata', moduleName: CORE };\nfunction createTokenForReference(reference) {\n return { identifier: { reference: reference } };\n}\nfunction createTokenForExternalReference(reflector, reference) {\n return createTokenForReference(reflector.resolveExternalReference(reference));\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A token representing the a reference to a static type.\n *\n * This token is unique for a filePath and name and can be used as a hash table key.\n */\nclass StaticSymbol {\n constructor(filePath, name, members) {\n this.filePath = filePath;\n this.name = name;\n this.members = members;\n }\n assertNoMembers() {\n if (this.members.length) {\n throw new Error(`Illegal state: symbol without members expected, but got ${JSON.stringify(this)}.`);\n }\n }\n}\n/**\n * A cache of static symbol used by the StaticReflector to return the same symbol for the\n * same symbol values.\n */\nclass StaticSymbolCache {\n constructor() {\n this.cache = new Map();\n }\n get(declarationFile, name, members) {\n members = members || [];\n const memberSuffix = members.length ? `.${members.join('.')}` : '';\n const key = `\"${declarationFile}\".${name}${memberSuffix}`;\n let result = this.cache.get(key);\n if (!result) {\n result = new StaticSymbol(declarationFile, name, members);\n this.cache.set(key, result);\n }\n return result;\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// group 0: \"[prop] or (event) or @trigger\"\n// group 1: \"prop\" from \"[prop]\"\n// group 2: \"event\" from \"(event)\"\n// group 3: \"@trigger\" from \"@trigger\"\nconst HOST_REG_EXP = /^(?:(?:\\[([^\\]]+)\\])|(?:\\(([^\\)]+)\\)))|(\\@[-\\w]+)$/;\nfunction sanitizeIdentifier(name) {\n return name.replace(/\\W/g, '_');\n}\nlet _anonymousTypeIndex = 0;\nfunction identifierName(compileIdentifier) {\n if (!compileIdentifier || !compileIdentifier.reference) {\n return null;\n }\n const ref = compileIdentifier.reference;\n if (ref instanceof StaticSymbol) {\n return ref.name;\n }\n if (ref['__anonymousType']) {\n return ref['__anonymousType'];\n }\n let identifier = stringify(ref);\n if (identifier.indexOf('(') >= 0) {\n // case: anonymous functions!\n identifier = `anonymous_${_anonymousTypeIndex++}`;\n ref['__anonymousType'] = identifier;\n }\n else {\n identifier = sanitizeIdentifier(identifier);\n }\n return identifier;\n}\nfunction identifierModuleUrl(compileIdentifier) {\n const ref = compileIdentifier.reference;\n if (ref instanceof StaticSymbol) {\n return ref.filePath;\n }\n // Runtime type\n return `./${stringify(ref)}`;\n}\nfunction viewClassName(compType, embeddedTemplateIndex) {\n return `View_${identifierName({ reference: compType })}_${embeddedTemplateIndex}`;\n}\nfunction rendererTypeName(compType) {\n return `RenderType_${identifierName({ reference: compType })}`;\n}\nfunction hostViewClassName(compType) {\n return `HostView_${identifierName({ reference: compType })}`;\n}\nfunction componentFactoryName(compType) {\n return `${identifierName({ reference: compType })}NgFactory`;\n}\nvar CompileSummaryKind;\n(function (CompileSummaryKind) {\n CompileSummaryKind[CompileSummaryKind[\"Pipe\"] = 0] = \"Pipe\";\n CompileSummaryKind[CompileSummaryKind[\"Directive\"] = 1] = \"Directive\";\n CompileSummaryKind[CompileSummaryKind[\"NgModule\"] = 2] = \"NgModule\";\n CompileSummaryKind[CompileSummaryKind[\"Injectable\"] = 3] = \"Injectable\";\n})(CompileSummaryKind || (CompileSummaryKind = {}));\nfunction tokenName(token) {\n return token.value != null ? sanitizeIdentifier(token.value) : identifierName(token.identifier);\n}\nfunction tokenReference(token) {\n if (token.identifier != null) {\n return token.identifier.reference;\n }\n else {\n return token.value;\n }\n}\n/**\n * Metadata about a stylesheet\n */\nclass CompileStylesheetMetadata {\n constructor({ moduleUrl, styles, styleUrls } = {}) {\n this.moduleUrl = moduleUrl || null;\n this.styles = _normalizeArray(styles);\n this.styleUrls = _normalizeArray(styleUrls);\n }\n}\n/**\n * Metadata regarding compilation of a template.\n */\nclass CompileTemplateMetadata {\n constructor({ encapsulation, template, templateUrl, htmlAst, styles, styleUrls, externalStylesheets, animations, ngContentSelectors, interpolation, isInline, preserveWhitespaces }) {\n this.encapsulation = encapsulation;\n this.template = template;\n this.templateUrl = templateUrl;\n this.htmlAst = htmlAst;\n this.styles = _normalizeArray(styles);\n this.styleUrls = _normalizeArray(styleUrls);\n this.externalStylesheets = _normalizeArray(externalStylesheets);\n this.animations = animations ? flatten(animations) : [];\n this.ngContentSelectors = ngContentSelectors || [];\n if (interpolation && interpolation.length != 2) {\n throw new Error(`'interpolation' should have a start and an end symbol.`);\n }\n this.interpolation = interpolation;\n this.isInline = isInline;\n this.preserveWhitespaces = preserveWhitespaces;\n }\n toSummary() {\n return {\n ngContentSelectors: this.ngContentSelectors,\n encapsulation: this.encapsulation,\n styles: this.styles,\n animations: this.animations\n };\n }\n}\n/**\n * Metadata regarding compilation of a directive.\n */\nclass CompileDirectiveMetadata {\n constructor({ isHost, type, isComponent, selector, exportAs, changeDetection, inputs, outputs, hostListeners, hostProperties, hostAttributes, providers, viewProviders, queries, guards, viewQueries, entryComponents, template, componentViewType, rendererType, componentFactory }) {\n this.isHost = !!isHost;\n this.type = type;\n this.isComponent = isComponent;\n this.selector = selector;\n this.exportAs = exportAs;\n this.changeDetection = changeDetection;\n this.inputs = inputs;\n this.outputs = outputs;\n this.hostListeners = hostListeners;\n this.hostProperties = hostProperties;\n this.hostAttributes = hostAttributes;\n this.providers = _normalizeArray(providers);\n this.viewProviders = _normalizeArray(viewProviders);\n this.queries = _normalizeArray(queries);\n this.guards = guards;\n this.viewQueries = _normalizeArray(viewQueries);\n this.entryComponents = _normalizeArray(entryComponents);\n this.template = template;\n this.componentViewType = componentViewType;\n this.rendererType = rendererType;\n this.componentFactory = componentFactory;\n }\n static create({ isHost, type, isComponent, selector, exportAs, changeDetection, inputs, outputs, host, providers, viewProviders, queries, guards, viewQueries, entryComponents, template, componentViewType, rendererType, componentFactory }) {\n const hostListeners = {};\n const hostProperties = {};\n const hostAttributes = {};\n if (host != null) {\n Object.keys(host).forEach(key => {\n const value = host[key];\n const matches = key.match(HOST_REG_EXP);\n if (matches === null) {\n hostAttributes[key] = value;\n }\n else if (matches[1] != null) {\n hostProperties[matches[1]] = value;\n }\n else if (matches[2] != null) {\n hostListeners[matches[2]] = value;\n }\n });\n }\n const inputsMap = {};\n if (inputs != null) {\n inputs.forEach((bindConfig) => {\n // canonical syntax: `dirProp: elProp`\n // if there is no `:`, use dirProp = elProp\n const parts = splitAtColon(bindConfig, [bindConfig, bindConfig]);\n inputsMap[parts[0]] = parts[1];\n });\n }\n const outputsMap = {};\n if (outputs != null) {\n outputs.forEach((bindConfig) => {\n // canonical syntax: `dirProp: elProp`\n // if there is no `:`, use dirProp = elProp\n const parts = splitAtColon(bindConfig, [bindConfig, bindConfig]);\n outputsMap[parts[0]] = parts[1];\n });\n }\n return new CompileDirectiveMetadata({\n isHost,\n type,\n isComponent: !!isComponent,\n selector,\n exportAs,\n changeDetection,\n inputs: inputsMap,\n outputs: outputsMap,\n hostListeners,\n hostProperties,\n hostAttributes,\n providers,\n viewProviders,\n queries,\n guards,\n viewQueries,\n entryComponents,\n template,\n componentViewType,\n rendererType,\n componentFactory,\n });\n }\n toSummary() {\n return {\n summaryKind: CompileSummaryKind.Directive,\n type: this.type,\n isComponent: this.isComponent,\n selector: this.selector,\n exportAs: this.exportAs,\n inputs: this.inputs,\n outputs: this.outputs,\n hostListeners: this.hostListeners,\n hostProperties: this.hostProperties,\n hostAttributes: this.hostAttributes,\n providers: this.providers,\n viewProviders: this.viewProviders,\n queries: this.queries,\n guards: this.guards,\n viewQueries: this.viewQueries,\n entryComponents: this.entryComponents,\n changeDetection: this.changeDetection,\n template: this.template && this.template.toSummary(),\n componentViewType: this.componentViewType,\n rendererType: this.rendererType,\n componentFactory: this.componentFactory\n };\n }\n}\nclass CompilePipeMetadata {\n constructor({ type, name, pure }) {\n this.type = type;\n this.name = name;\n this.pure = !!pure;\n }\n toSummary() {\n return {\n summaryKind: CompileSummaryKind.Pipe,\n type: this.type,\n name: this.name,\n pure: this.pure\n };\n }\n}\nclass CompileShallowModuleMetadata {\n}\n/**\n * Metadata regarding compilation of a module.\n */\nclass CompileNgModuleMetadata {\n constructor({ type, providers, declaredDirectives, exportedDirectives, declaredPipes, exportedPipes, entryComponents, bootstrapComponents, importedModules, exportedModules, schemas, transitiveModule, id }) {\n this.type = type || null;\n this.declaredDirectives = _normalizeArray(declaredDirectives);\n this.exportedDirectives = _normalizeArray(exportedDirectives);\n this.declaredPipes = _normalizeArray(declaredPipes);\n this.exportedPipes = _normalizeArray(exportedPipes);\n this.providers = _normalizeArray(providers);\n this.entryComponents = _normalizeArray(entryComponents);\n this.bootstrapComponents = _normalizeArray(bootstrapComponents);\n this.importedModules = _normalizeArray(importedModules);\n this.exportedModules = _normalizeArray(exportedModules);\n this.schemas = _normalizeArray(schemas);\n this.id = id || null;\n this.transitiveModule = transitiveModule || null;\n }\n toSummary() {\n const module = this.transitiveModule;\n return {\n summaryKind: CompileSummaryKind.NgModule,\n type: this.type,\n entryComponents: module.entryComponents,\n providers: module.providers,\n modules: module.modules,\n exportedDirectives: module.exportedDirectives,\n exportedPipes: module.exportedPipes\n };\n }\n}\nclass TransitiveCompileNgModuleMetadata {\n constructor() {\n this.directivesSet = new Set();\n this.directives = [];\n this.exportedDirectivesSet = new Set();\n this.exportedDirectives = [];\n this.pipesSet = new Set();\n this.pipes = [];\n this.exportedPipesSet = new Set();\n this.exportedPipes = [];\n this.modulesSet = new Set();\n this.modules = [];\n this.entryComponentsSet = new Set();\n this.entryComponents = [];\n this.providers = [];\n }\n addProvider(provider, module) {\n this.providers.push({ provider: provider, module: module });\n }\n addDirective(id) {\n if (!this.directivesSet.has(id.reference)) {\n this.directivesSet.add(id.reference);\n this.directives.push(id);\n }\n }\n addExportedDirective(id) {\n if (!this.exportedDirectivesSet.has(id.reference)) {\n this.exportedDirectivesSet.add(id.reference);\n this.exportedDirectives.push(id);\n }\n }\n addPipe(id) {\n if (!this.pipesSet.has(id.reference)) {\n this.pipesSet.add(id.reference);\n this.pipes.push(id);\n }\n }\n addExportedPipe(id) {\n if (!this.exportedPipesSet.has(id.reference)) {\n this.exportedPipesSet.add(id.reference);\n this.exportedPipes.push(id);\n }\n }\n addModule(id) {\n if (!this.modulesSet.has(id.reference)) {\n this.modulesSet.add(id.reference);\n this.modules.push(id);\n }\n }\n addEntryComponent(ec) {\n if (!this.entryComponentsSet.has(ec.componentType)) {\n this.entryComponentsSet.add(ec.componentType);\n this.entryComponents.push(ec);\n }\n }\n}\nfunction _normalizeArray(obj) {\n return obj || [];\n}\nclass ProviderMeta {\n constructor(token, { useClass, useValue, useExisting, useFactory, deps, multi }) {\n this.token = token;\n this.useClass = useClass || null;\n this.useValue = useValue;\n this.useExisting = useExisting;\n this.useFactory = useFactory || null;\n this.dependencies = deps || null;\n this.multi = !!multi;\n }\n}\nfunction flatten(list) {\n return list.reduce((flat, item) => {\n const flatItem = Array.isArray(item) ? flatten(item) : item;\n return flat.concat(flatItem);\n }, []);\n}\nfunction jitSourceUrl(url) {\n // Note: We need 3 \"/\" so that ng shows up as a separate domain\n // in the chrome dev tools.\n return url.replace(/(\\w+:\\/\\/[\\w:-]+)?(\\/+)?/, 'ng:///');\n}\nfunction templateSourceUrl(ngModuleType, compMeta, templateMeta) {\n let url;\n if (templateMeta.isInline) {\n if (compMeta.type.reference instanceof StaticSymbol) {\n // Note: a .ts file might contain multiple components with inline templates,\n // so we need to give them unique urls, as these will be used for sourcemaps.\n url = `${compMeta.type.reference.filePath}.${compMeta.type.reference.name}.html`;\n }\n else {\n url = `${identifierName(ngModuleType)}/${identifierName(compMeta.type)}.html`;\n }\n }\n else {\n url = templateMeta.templateUrl;\n }\n return compMeta.type.reference instanceof StaticSymbol ? url : jitSourceUrl(url);\n}\nfunction sharedStylesheetJitUrl(meta, id) {\n const pathParts = meta.moduleUrl.split(/\\/\\\\/g);\n const baseName = pathParts[pathParts.length - 1];\n return jitSourceUrl(`css/${id}${baseName}.ngstyle.js`);\n}\nfunction ngModuleJitUrl(moduleMeta) {\n return jitSourceUrl(`${identifierName(moduleMeta.type)}/module.ngfactory.js`);\n}\nfunction templateJitUrl(ngModuleType, compMeta) {\n return jitSourceUrl(`${identifierName(ngModuleType)}/${identifierName(compMeta.type)}.ngfactory.js`);\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst CORE$1 = '@angular/core';\nclass Identifiers$1 {\n}\n/* Methods */\nIdentifiers$1.NEW_METHOD = 'factory';\nIdentifiers$1.TRANSFORM_METHOD = 'transform';\nIdentifiers$1.PATCH_DEPS = 'patchedDeps';\nIdentifiers$1.core = { name: null, moduleName: CORE$1 };\n/* Instructions */\nIdentifiers$1.namespaceHTML = { name: 'ɵɵnamespaceHTML', moduleName: CORE$1 };\nIdentifiers$1.namespaceMathML = { name: 'ɵɵnamespaceMathML', moduleName: CORE$1 };\nIdentifiers$1.namespaceSVG = { name: 'ɵɵnamespaceSVG', moduleName: CORE$1 };\nIdentifiers$1.element = { name: 'ɵɵelement', moduleName: CORE$1 };\nIdentifiers$1.elementStart = { name: 'ɵɵelementStart', moduleName: CORE$1 };\nIdentifiers$1.elementEnd = { name: 'ɵɵelementEnd', moduleName: CORE$1 };\nIdentifiers$1.advance = { name: 'ɵɵadvance', moduleName: CORE$1 };\nIdentifiers$1.syntheticHostProperty = { name: 'ɵɵsyntheticHostProperty', moduleName: CORE$1 };\nIdentifiers$1.syntheticHostListener = { name: 'ɵɵsyntheticHostListener', moduleName: CORE$1 };\nIdentifiers$1.attribute = { name: 'ɵɵattribute', moduleName: CORE$1 };\nIdentifiers$1.attributeInterpolate1 = { name: 'ɵɵattributeInterpolate1', moduleName: CORE$1 };\nIdentifiers$1.attributeInterpolate2 = { name: 'ɵɵattributeInterpolate2', moduleName: CORE$1 };\nIdentifiers$1.attributeInterpolate3 = { name: 'ɵɵattributeInterpolate3', moduleName: CORE$1 };\nIdentifiers$1.attributeInterpolate4 = { name: 'ɵɵattributeInterpolate4', moduleName: CORE$1 };\nIdentifiers$1.attributeInterpolate5 = { name: 'ɵɵattributeInterpolate5', moduleName: CORE$1 };\nIdentifiers$1.attributeInterpolate6 = { name: 'ɵɵattributeInterpolate6', moduleName: CORE$1 };\nIdentifiers$1.attributeInterpolate7 = { name: 'ɵɵattributeInterpolate7', moduleName: CORE$1 };\nIdentifiers$1.attributeInterpolate8 = { name: 'ɵɵattributeInterpolate8', moduleName: CORE$1 };\nIdentifiers$1.attributeInterpolateV = { name: 'ɵɵattributeInterpolateV', moduleName: CORE$1 };\nIdentifiers$1.classProp = { name: 'ɵɵclassProp', moduleName: CORE$1 };\nIdentifiers$1.elementContainerStart = { name: 'ɵɵelementContainerStart', moduleName: CORE$1 };\nIdentifiers$1.elementContainerEnd = { name: 'ɵɵelementContainerEnd', moduleName: CORE$1 };\nIdentifiers$1.elementContainer = { name: 'ɵɵelementContainer', moduleName: CORE$1 };\nIdentifiers$1.styleMap = { name: 'ɵɵstyleMap', moduleName: CORE$1 };\nIdentifiers$1.styleMapInterpolate1 = { name: 'ɵɵstyleMapInterpolate1', moduleName: CORE$1 };\nIdentifiers$1.styleMapInterpolate2 = { name: 'ɵɵstyleMapInterpolate2', moduleName: CORE$1 };\nIdentifiers$1.styleMapInterpolate3 = { name: 'ɵɵstyleMapInterpolate3', moduleName: CORE$1 };\nIdentifiers$1.styleMapInterpolate4 = { name: 'ɵɵstyleMapInterpolate4', moduleName: CORE$1 };\nIdentifiers$1.styleMapInterpolate5 = { name: 'ɵɵstyleMapInterpolate5', moduleName: CORE$1 };\nIdentifiers$1.styleMapInterpolate6 = { name: 'ɵɵstyleMapInterpolate6', moduleName: CORE$1 };\nIdentifiers$1.styleMapInterpolate7 = { name: 'ɵɵstyleMapInterpolate7', moduleName: CORE$1 };\nIdentifiers$1.styleMapInterpolate8 = { name: 'ɵɵstyleMapInterpolate8', moduleName: CORE$1 };\nIdentifiers$1.styleMapInterpolateV = { name: 'ɵɵstyleMapInterpolateV', moduleName: CORE$1 };\nIdentifiers$1.classMap = { name: 'ɵɵclassMap', moduleName: CORE$1 };\nIdentifiers$1.classMapInterpolate1 = { name: 'ɵɵclassMapInterpolate1', moduleName: CORE$1 };\nIdentifiers$1.classMapInterpolate2 = { name: 'ɵɵclassMapInterpolate2', moduleName: CORE$1 };\nIdentifiers$1.classMapInterpolate3 = { name: 'ɵɵclassMapInterpolate3', moduleName: CORE$1 };\nIdentifiers$1.classMapInterpolate4 = { name: 'ɵɵclassMapInterpolate4', moduleName: CORE$1 };\nIdentifiers$1.classMapInterpolate5 = { name: 'ɵɵclassMapInterpolate5', moduleName: CORE$1 };\nIdentifiers$1.classMapInterpolate6 = { name: 'ɵɵclassMapInterpolate6', moduleName: CORE$1 };\nIdentifiers$1.classMapInterpolate7 = { name: 'ɵɵclassMapInterpolate7', moduleName: CORE$1 };\nIdentifiers$1.classMapInterpolate8 = { name: 'ɵɵclassMapInterpolate8', moduleName: CORE$1 };\nIdentifiers$1.classMapInterpolateV = { name: 'ɵɵclassMapInterpolateV', moduleName: CORE$1 };\nIdentifiers$1.styleProp = { name: 'ɵɵstyleProp', moduleName: CORE$1 };\nIdentifiers$1.stylePropInterpolate1 = { name: 'ɵɵstylePropInterpolate1', moduleName: CORE$1 };\nIdentifiers$1.stylePropInterpolate2 = { name: 'ɵɵstylePropInterpolate2', moduleName: CORE$1 };\nIdentifiers$1.stylePropInterpolate3 = { name: 'ɵɵstylePropInterpolate3', moduleName: CORE$1 };\nIdentifiers$1.stylePropInterpolate4 = { name: 'ɵɵstylePropInterpolate4', moduleName: CORE$1 };\nIdentifiers$1.stylePropInterpolate5 = { name: 'ɵɵstylePropInterpolate5', moduleName: CORE$1 };\nIdentifiers$1.stylePropInterpolate6 = { name: 'ɵɵstylePropInterpolate6', moduleName: CORE$1 };\nIdentifiers$1.stylePropInterpolate7 = { name: 'ɵɵstylePropInterpolate7', moduleName: CORE$1 };\nIdentifiers$1.stylePropInterpolate8 = { name: 'ɵɵstylePropInterpolate8', moduleName: CORE$1 };\nIdentifiers$1.stylePropInterpolateV = { name: 'ɵɵstylePropInterpolateV', moduleName: CORE$1 };\nIdentifiers$1.nextContext = { name: 'ɵɵnextContext', moduleName: CORE$1 };\nIdentifiers$1.templateCreate = { name: 'ɵɵtemplate', moduleName: CORE$1 };\nIdentifiers$1.text = { name: 'ɵɵtext', moduleName: CORE$1 };\nIdentifiers$1.enableBindings = { name: 'ɵɵenableBindings', moduleName: CORE$1 };\nIdentifiers$1.disableBindings = { name: 'ɵɵdisableBindings', moduleName: CORE$1 };\nIdentifiers$1.getCurrentView = { name: 'ɵɵgetCurrentView', moduleName: CORE$1 };\nIdentifiers$1.textInterpolate = { name: 'ɵɵtextInterpolate', moduleName: CORE$1 };\nIdentifiers$1.textInterpolate1 = { name: 'ɵɵtextInterpolate1', moduleName: CORE$1 };\nIdentifiers$1.textInterpolate2 = { name: 'ɵɵtextInterpolate2', moduleName: CORE$1 };\nIdentifiers$1.textInterpolate3 = { name: 'ɵɵtextInterpolate3', moduleName: CORE$1 };\nIdentifiers$1.textInterpolate4 = { name: 'ɵɵtextInterpolate4', moduleName: CORE$1 };\nIdentifiers$1.textInterpolate5 = { name: 'ɵɵtextInterpolate5', moduleName: CORE$1 };\nIdentifiers$1.textInterpolate6 = { name: 'ɵɵtextInterpolate6', moduleName: CORE$1 };\nIdentifiers$1.textInterpolate7 = { name: 'ɵɵtextInterpolate7', moduleName: CORE$1 };\nIdentifiers$1.textInterpolate8 = { name: 'ɵɵtextInterpolate8', moduleName: CORE$1 };\nIdentifiers$1.textInterpolateV = { name: 'ɵɵtextInterpolateV', moduleName: CORE$1 };\nIdentifiers$1.restoreView = { name: 'ɵɵrestoreView', moduleName: CORE$1 };\nIdentifiers$1.pureFunction0 = { name: 'ɵɵpureFunction0', moduleName: CORE$1 };\nIdentifiers$1.pureFunction1 = { name: 'ɵɵpureFunction1', moduleName: CORE$1 };\nIdentifiers$1.pureFunction2 = { name: 'ɵɵpureFunction2', moduleName: CORE$1 };\nIdentifiers$1.pureFunction3 = { name: 'ɵɵpureFunction3', moduleName: CORE$1 };\nIdentifiers$1.pureFunction4 = { name: 'ɵɵpureFunction4', moduleName: CORE$1 };\nIdentifiers$1.pureFunction5 = { name: 'ɵɵpureFunction5', moduleName: CORE$1 };\nIdentifiers$1.pureFunction6 = { name: 'ɵɵpureFunction6', moduleName: CORE$1 };\nIdentifiers$1.pureFunction7 = { name: 'ɵɵpureFunction7', moduleName: CORE$1 };\nIdentifiers$1.pureFunction8 = { name: 'ɵɵpureFunction8', moduleName: CORE$1 };\nIdentifiers$1.pureFunctionV = { name: 'ɵɵpureFunctionV', moduleName: CORE$1 };\nIdentifiers$1.pipeBind1 = { name: 'ɵɵpipeBind1', moduleName: CORE$1 };\nIdentifiers$1.pipeBind2 = { name: 'ɵɵpipeBind2', moduleName: CORE$1 };\nIdentifiers$1.pipeBind3 = { name: 'ɵɵpipeBind3', moduleName: CORE$1 };\nIdentifiers$1.pipeBind4 = { name: 'ɵɵpipeBind4', moduleName: CORE$1 };\nIdentifiers$1.pipeBindV = { name: 'ɵɵpipeBindV', moduleName: CORE$1 };\nIdentifiers$1.hostProperty = { name: 'ɵɵhostProperty', moduleName: CORE$1 };\nIdentifiers$1.property = { name: 'ɵɵproperty', moduleName: CORE$1 };\nIdentifiers$1.propertyInterpolate = { name: 'ɵɵpropertyInterpolate', moduleName: CORE$1 };\nIdentifiers$1.propertyInterpolate1 = { name: 'ɵɵpropertyInterpolate1', moduleName: CORE$1 };\nIdentifiers$1.propertyInterpolate2 = { name: 'ɵɵpropertyInterpolate2', moduleName: CORE$1 };\nIdentifiers$1.propertyInterpolate3 = { name: 'ɵɵpropertyInterpolate3', moduleName: CORE$1 };\nIdentifiers$1.propertyInterpolate4 = { name: 'ɵɵpropertyInterpolate4', moduleName: CORE$1 };\nIdentifiers$1.propertyInterpolate5 = { name: 'ɵɵpropertyInterpolate5', moduleName: CORE$1 };\nIdentifiers$1.propertyInterpolate6 = { name: 'ɵɵpropertyInterpolate6', moduleName: CORE$1 };\nIdentifiers$1.propertyInterpolate7 = { name: 'ɵɵpropertyInterpolate7', moduleName: CORE$1 };\nIdentifiers$1.propertyInterpolate8 = { name: 'ɵɵpropertyInterpolate8', moduleName: CORE$1 };\nIdentifiers$1.propertyInterpolateV = { name: 'ɵɵpropertyInterpolateV', moduleName: CORE$1 };\nIdentifiers$1.i18n = { name: 'ɵɵi18n', moduleName: CORE$1 };\nIdentifiers$1.i18nAttributes = { name: 'ɵɵi18nAttributes', moduleName: CORE$1 };\nIdentifiers$1.i18nExp = { name: 'ɵɵi18nExp', moduleName: CORE$1 };\nIdentifiers$1.i18nStart = { name: 'ɵɵi18nStart', moduleName: CORE$1 };\nIdentifiers$1.i18nEnd = { name: 'ɵɵi18nEnd', moduleName: CORE$1 };\nIdentifiers$1.i18nApply = { name: 'ɵɵi18nApply', moduleName: CORE$1 };\nIdentifiers$1.i18nPostprocess = { name: 'ɵɵi18nPostprocess', moduleName: CORE$1 };\nIdentifiers$1.pipe = { name: 'ɵɵpipe', moduleName: CORE$1 };\nIdentifiers$1.projection = { name: 'ɵɵprojection', moduleName: CORE$1 };\nIdentifiers$1.projectionDef = { name: 'ɵɵprojectionDef', moduleName: CORE$1 };\nIdentifiers$1.reference = { name: 'ɵɵreference', moduleName: CORE$1 };\nIdentifiers$1.inject = { name: 'ɵɵinject', moduleName: CORE$1 };\nIdentifiers$1.injectAttribute = { name: 'ɵɵinjectAttribute', moduleName: CORE$1 };\nIdentifiers$1.injectPipeChangeDetectorRef = { name: 'ɵɵinjectPipeChangeDetectorRef', moduleName: CORE$1 };\nIdentifiers$1.directiveInject = { name: 'ɵɵdirectiveInject', moduleName: CORE$1 };\nIdentifiers$1.invalidFactory = { name: 'ɵɵinvalidFactory', moduleName: CORE$1 };\nIdentifiers$1.invalidFactoryDep = { name: 'ɵɵinvalidFactoryDep', moduleName: CORE$1 };\nIdentifiers$1.templateRefExtractor = { name: 'ɵɵtemplateRefExtractor', moduleName: CORE$1 };\nIdentifiers$1.forwardRef = { name: 'forwardRef', moduleName: CORE$1 };\nIdentifiers$1.resolveForwardRef = { name: 'resolveForwardRef', moduleName: CORE$1 };\nIdentifiers$1.resolveWindow = { name: 'ɵɵresolveWindow', moduleName: CORE$1 };\nIdentifiers$1.resolveDocument = { name: 'ɵɵresolveDocument', moduleName: CORE$1 };\nIdentifiers$1.resolveBody = { name: 'ɵɵresolveBody', moduleName: CORE$1 };\nIdentifiers$1.defineComponent = { name: 'ɵɵdefineComponent', moduleName: CORE$1 };\nIdentifiers$1.declareComponent = { name: 'ɵɵngDeclareComponent', moduleName: CORE$1 };\nIdentifiers$1.setComponentScope = { name: 'ɵɵsetComponentScope', moduleName: CORE$1 };\nIdentifiers$1.ChangeDetectionStrategy = {\n name: 'ChangeDetectionStrategy',\n moduleName: CORE$1,\n};\nIdentifiers$1.ViewEncapsulation = {\n name: 'ViewEncapsulation',\n moduleName: CORE$1,\n};\nIdentifiers$1.ComponentDefWithMeta = {\n name: 'ɵɵComponentDefWithMeta',\n moduleName: CORE$1,\n};\nIdentifiers$1.FactoryDef = {\n name: 'ɵɵFactoryDef',\n moduleName: CORE$1,\n};\nIdentifiers$1.defineDirective = { name: 'ɵɵdefineDirective', moduleName: CORE$1 };\nIdentifiers$1.declareDirective = { name: 'ɵɵngDeclareDirective', moduleName: CORE$1 };\nIdentifiers$1.DirectiveDefWithMeta = {\n name: 'ɵɵDirectiveDefWithMeta',\n moduleName: CORE$1,\n};\nIdentifiers$1.InjectorDef = {\n name: 'ɵɵInjectorDef',\n moduleName: CORE$1,\n};\nIdentifiers$1.defineInjector = {\n name: 'ɵɵdefineInjector',\n moduleName: CORE$1,\n};\nIdentifiers$1.NgModuleDefWithMeta = {\n name: 'ɵɵNgModuleDefWithMeta',\n moduleName: CORE$1,\n};\nIdentifiers$1.ModuleWithProviders = {\n name: 'ModuleWithProviders',\n moduleName: CORE$1,\n};\nIdentifiers$1.defineNgModule = { name: 'ɵɵdefineNgModule', moduleName: CORE$1 };\nIdentifiers$1.setNgModuleScope = { name: 'ɵɵsetNgModuleScope', moduleName: CORE$1 };\nIdentifiers$1.PipeDefWithMeta = { name: 'ɵɵPipeDefWithMeta', moduleName: CORE$1 };\nIdentifiers$1.definePipe = { name: 'ɵɵdefinePipe', moduleName: CORE$1 };\nIdentifiers$1.queryRefresh = { name: 'ɵɵqueryRefresh', moduleName: CORE$1 };\nIdentifiers$1.viewQuery = { name: 'ɵɵviewQuery', moduleName: CORE$1 };\nIdentifiers$1.loadQuery = { name: 'ɵɵloadQuery', moduleName: CORE$1 };\nIdentifiers$1.contentQuery = { name: 'ɵɵcontentQuery', moduleName: CORE$1 };\nIdentifiers$1.NgOnChangesFeature = { name: 'ɵɵNgOnChangesFeature', moduleName: CORE$1 };\nIdentifiers$1.InheritDefinitionFeature = { name: 'ɵɵInheritDefinitionFeature', moduleName: CORE$1 };\nIdentifiers$1.CopyDefinitionFeature = { name: 'ɵɵCopyDefinitionFeature', moduleName: CORE$1 };\nIdentifiers$1.ProvidersFeature = { name: 'ɵɵProvidersFeature', moduleName: CORE$1 };\nIdentifiers$1.listener = { name: 'ɵɵlistener', moduleName: CORE$1 };\nIdentifiers$1.getFactoryOf = {\n name: 'ɵɵgetFactoryOf',\n moduleName: CORE$1,\n};\nIdentifiers$1.getInheritedFactory = {\n name: 'ɵɵgetInheritedFactory',\n moduleName: CORE$1,\n};\n// sanitization-related functions\nIdentifiers$1.sanitizeHtml = { name: 'ɵɵsanitizeHtml', moduleName: CORE$1 };\nIdentifiers$1.sanitizeStyle = { name: 'ɵɵsanitizeStyle', moduleName: CORE$1 };\nIdentifiers$1.sanitizeResourceUrl = { name: 'ɵɵsanitizeResourceUrl', moduleName: CORE$1 };\nIdentifiers$1.sanitizeScript = { name: 'ɵɵsanitizeScript', moduleName: CORE$1 };\nIdentifiers$1.sanitizeUrl = { name: 'ɵɵsanitizeUrl', moduleName: CORE$1 };\nIdentifiers$1.sanitizeUrlOrResourceUrl = { name: 'ɵɵsanitizeUrlOrResourceUrl', moduleName: CORE$1 };\nIdentifiers$1.trustConstantHtml = { name: 'ɵɵtrustConstantHtml', moduleName: CORE$1 };\nIdentifiers$1.trustConstantResourceUrl = { name: 'ɵɵtrustConstantResourceUrl', moduleName: CORE$1 };\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit\nconst VERSION = 3;\nconst JS_B64_PREFIX = '# sourceMappingURL=data:application/json;base64,';\nclass SourceMapGenerator {\n constructor(file = null) {\n this.file = file;\n this.sourcesContent = new Map();\n this.lines = [];\n this.lastCol0 = 0;\n this.hasMappings = false;\n }\n // The content is `null` when the content is expected to be loaded using the URL\n addSource(url, content = null) {\n if (!this.sourcesContent.has(url)) {\n this.sourcesContent.set(url, content);\n }\n return this;\n }\n addLine() {\n this.lines.push([]);\n this.lastCol0 = 0;\n return this;\n }\n addMapping(col0, sourceUrl, sourceLine0, sourceCol0) {\n if (!this.currentLine) {\n throw new Error(`A line must be added before mappings can be added`);\n }\n if (sourceUrl != null && !this.sourcesContent.has(sourceUrl)) {\n throw new Error(`Unknown source file \"${sourceUrl}\"`);\n }\n if (col0 == null) {\n throw new Error(`The column in the generated code must be provided`);\n }\n if (col0 < this.lastCol0) {\n throw new Error(`Mapping should be added in output order`);\n }\n if (sourceUrl && (sourceLine0 == null || sourceCol0 == null)) {\n throw new Error(`The source location must be provided when a source url is provided`);\n }\n this.hasMappings = true;\n this.lastCol0 = col0;\n this.currentLine.push({ col0, sourceUrl, sourceLine0, sourceCol0 });\n return this;\n }\n /**\n * @internal strip this from published d.ts files due to\n * https://github.com/microsoft/TypeScript/issues/36216\n */\n get currentLine() {\n return this.lines.slice(-1)[0];\n }\n toJSON() {\n if (!this.hasMappings) {\n return null;\n }\n const sourcesIndex = new Map();\n const sources = [];\n const sourcesContent = [];\n Array.from(this.sourcesContent.keys()).forEach((url, i) => {\n sourcesIndex.set(url, i);\n sources.push(url);\n sourcesContent.push(this.sourcesContent.get(url) || null);\n });\n let mappings = '';\n let lastCol0 = 0;\n let lastSourceIndex = 0;\n let lastSourceLine0 = 0;\n let lastSourceCol0 = 0;\n this.lines.forEach(segments => {\n lastCol0 = 0;\n mappings += segments\n .map(segment => {\n // zero-based starting column of the line in the generated code\n let segAsStr = toBase64VLQ(segment.col0 - lastCol0);\n lastCol0 = segment.col0;\n if (segment.sourceUrl != null) {\n // zero-based index into the “sources” list\n segAsStr +=\n toBase64VLQ(sourcesIndex.get(segment.sourceUrl) - lastSourceIndex);\n lastSourceIndex = sourcesIndex.get(segment.sourceUrl);\n // the zero-based starting line in the original source\n segAsStr += toBase64VLQ(segment.sourceLine0 - lastSourceLine0);\n lastSourceLine0 = segment.sourceLine0;\n // the zero-based starting column in the original source\n segAsStr += toBase64VLQ(segment.sourceCol0 - lastSourceCol0);\n lastSourceCol0 = segment.sourceCol0;\n }\n return segAsStr;\n })\n .join(',');\n mappings += ';';\n });\n mappings = mappings.slice(0, -1);\n return {\n 'file': this.file || '',\n 'version': VERSION,\n 'sourceRoot': '',\n 'sources': sources,\n 'sourcesContent': sourcesContent,\n 'mappings': mappings,\n };\n }\n toJsComment() {\n return this.hasMappings ? '//' + JS_B64_PREFIX + toBase64String(JSON.stringify(this, null, 0)) :\n '';\n }\n}\nfunction toBase64String(value) {\n let b64 = '';\n const encoded = utf8Encode(value);\n for (let i = 0; i < encoded.length;) {\n const i1 = encoded[i++];\n const i2 = i < encoded.length ? encoded[i++] : null;\n const i3 = i < encoded.length ? encoded[i++] : null;\n b64 += toBase64Digit(i1 >> 2);\n b64 += toBase64Digit(((i1 & 3) << 4) | (i2 === null ? 0 : i2 >> 4));\n b64 += i2 === null ? '=' : toBase64Digit(((i2 & 15) << 2) | (i3 === null ? 0 : i3 >> 6));\n b64 += i2 === null || i3 === null ? '=' : toBase64Digit(i3 & 63);\n }\n return b64;\n}\nfunction toBase64VLQ(value) {\n value = value < 0 ? ((-value) << 1) + 1 : value << 1;\n let out = '';\n do {\n let digit = value & 31;\n value = value >> 5;\n if (value > 0) {\n digit = digit | 32;\n }\n out += toBase64Digit(digit);\n } while (value > 0);\n return out;\n}\nconst B64_DIGITS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\nfunction toBase64Digit(value) {\n if (value < 0 || value >= 64) {\n throw new Error(`Can only encode value in the range [0, 63]`);\n }\n return B64_DIGITS[value];\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst _SINGLE_QUOTE_ESCAPE_STRING_RE = /'|\\\\|\\n|\\r|\\$/g;\nconst _LEGAL_IDENTIFIER_RE = /^[$A-Z_][0-9A-Z_$]*$/i;\nconst _INDENT_WITH = ' ';\nconst CATCH_ERROR_VAR$1 = variable('error', null, null);\nconst CATCH_STACK_VAR$1 = variable('stack', null, null);\nclass _EmittedLine {\n constructor(indent) {\n this.indent = indent;\n this.partsLength = 0;\n this.parts = [];\n this.srcSpans = [];\n }\n}\nclass EmitterVisitorContext {\n constructor(_indent) {\n this._indent = _indent;\n this._classes = [];\n this._preambleLineCount = 0;\n this._lines = [new _EmittedLine(_indent)];\n }\n static createRoot() {\n return new EmitterVisitorContext(0);\n }\n /**\n * @internal strip this from published d.ts files due to\n * https://github.com/microsoft/TypeScript/issues/36216\n */\n get _currentLine() {\n return this._lines[this._lines.length - 1];\n }\n println(from, lastPart = '') {\n this.print(from || null, lastPart, true);\n }\n lineIsEmpty() {\n return this._currentLine.parts.length === 0;\n }\n lineLength() {\n return this._currentLine.indent * _INDENT_WITH.length + this._currentLine.partsLength;\n }\n print(from, part, newLine = false) {\n if (part.length > 0) {\n this._currentLine.parts.push(part);\n this._currentLine.partsLength += part.length;\n this._currentLine.srcSpans.push(from && from.sourceSpan || null);\n }\n if (newLine) {\n this._lines.push(new _EmittedLine(this._indent));\n }\n }\n removeEmptyLastLine() {\n if (this.lineIsEmpty()) {\n this._lines.pop();\n }\n }\n incIndent() {\n this._indent++;\n if (this.lineIsEmpty()) {\n this._currentLine.indent = this._indent;\n }\n }\n decIndent() {\n this._indent--;\n if (this.lineIsEmpty()) {\n this._currentLine.indent = this._indent;\n }\n }\n pushClass(clazz) {\n this._classes.push(clazz);\n }\n popClass() {\n return this._classes.pop();\n }\n get currentClass() {\n return this._classes.length > 0 ? this._classes[this._classes.length - 1] : null;\n }\n toSource() {\n return this.sourceLines\n .map(l => l.parts.length > 0 ? _createIndent(l.indent) + l.parts.join('') : '')\n .join('\\n');\n }\n toSourceMapGenerator(genFilePath, startsAtLine = 0) {\n const map = new SourceMapGenerator(genFilePath);\n let firstOffsetMapped = false;\n const mapFirstOffsetIfNeeded = () => {\n if (!firstOffsetMapped) {\n // Add a single space so that tools won't try to load the file from disk.\n // Note: We are using virtual urls like `ng:///`, so we have to\n // provide a content here.\n map.addSource(genFilePath, ' ').addMapping(0, genFilePath, 0, 0);\n firstOffsetMapped = true;\n }\n };\n for (let i = 0; i < startsAtLine; i++) {\n map.addLine();\n mapFirstOffsetIfNeeded();\n }\n this.sourceLines.forEach((line, lineIdx) => {\n map.addLine();\n const spans = line.srcSpans;\n const parts = line.parts;\n let col0 = line.indent * _INDENT_WITH.length;\n let spanIdx = 0;\n // skip leading parts without source spans\n while (spanIdx < spans.length && !spans[spanIdx]) {\n col0 += parts[spanIdx].length;\n spanIdx++;\n }\n if (spanIdx < spans.length && lineIdx === 0 && col0 === 0) {\n firstOffsetMapped = true;\n }\n else {\n mapFirstOffsetIfNeeded();\n }\n while (spanIdx < spans.length) {\n const span = spans[spanIdx];\n const source = span.start.file;\n const sourceLine = span.start.line;\n const sourceCol = span.start.col;\n map.addSource(source.url, source.content)\n .addMapping(col0, source.url, sourceLine, sourceCol);\n col0 += parts[spanIdx].length;\n spanIdx++;\n // assign parts without span or the same span to the previous segment\n while (spanIdx < spans.length && (span === spans[spanIdx] || !spans[spanIdx])) {\n col0 += parts[spanIdx].length;\n spanIdx++;\n }\n }\n });\n return map;\n }\n setPreambleLineCount(count) {\n return this._preambleLineCount = count;\n }\n spanOf(line, column) {\n const emittedLine = this._lines[line - this._preambleLineCount];\n if (emittedLine) {\n let columnsLeft = column - _createIndent(emittedLine.indent).length;\n for (let partIndex = 0; partIndex < emittedLine.parts.length; partIndex++) {\n const part = emittedLine.parts[partIndex];\n if (part.length > columnsLeft) {\n return emittedLine.srcSpans[partIndex];\n }\n columnsLeft -= part.length;\n }\n }\n return null;\n }\n /**\n * @internal strip this from published d.ts files due to\n * https://github.com/microsoft/TypeScript/issues/36216\n */\n get sourceLines() {\n if (this._lines.length && this._lines[this._lines.length - 1].parts.length === 0) {\n return this._lines.slice(0, -1);\n }\n return this._lines;\n }\n}\nclass AbstractEmitterVisitor {\n constructor(_escapeDollarInStrings) {\n this._escapeDollarInStrings = _escapeDollarInStrings;\n }\n printLeadingComments(stmt, ctx) {\n if (stmt.leadingComments === undefined) {\n return;\n }\n for (const comment of stmt.leadingComments) {\n if (comment instanceof JSDocComment) {\n ctx.print(stmt, `/*${comment.toString()}*/`, comment.trailingNewline);\n }\n else {\n if (comment.multiline) {\n ctx.print(stmt, `/* ${comment.text} */`, comment.trailingNewline);\n }\n else {\n comment.text.split('\\n').forEach((line) => {\n ctx.println(stmt, `// ${line}`);\n });\n }\n }\n }\n }\n visitExpressionStmt(stmt, ctx) {\n this.printLeadingComments(stmt, ctx);\n stmt.expr.visitExpression(this, ctx);\n ctx.println(stmt, ';');\n return null;\n }\n visitReturnStmt(stmt, ctx) {\n this.printLeadingComments(stmt, ctx);\n ctx.print(stmt, `return `);\n stmt.value.visitExpression(this, ctx);\n ctx.println(stmt, ';');\n return null;\n }\n visitIfStmt(stmt, ctx) {\n this.printLeadingComments(stmt, ctx);\n ctx.print(stmt, `if (`);\n stmt.condition.visitExpression(this, ctx);\n ctx.print(stmt, `) {`);\n const hasElseCase = stmt.falseCase != null && stmt.falseCase.length > 0;\n if (stmt.trueCase.length <= 1 && !hasElseCase) {\n ctx.print(stmt, ` `);\n this.visitAllStatements(stmt.trueCase, ctx);\n ctx.removeEmptyLastLine();\n ctx.print(stmt, ` `);\n }\n else {\n ctx.println();\n ctx.incIndent();\n this.visitAllStatements(stmt.trueCase, ctx);\n ctx.decIndent();\n if (hasElseCase) {\n ctx.println(stmt, `} else {`);\n ctx.incIndent();\n this.visitAllStatements(stmt.falseCase, ctx);\n ctx.decIndent();\n }\n }\n ctx.println(stmt, `}`);\n return null;\n }\n visitThrowStmt(stmt, ctx) {\n this.printLeadingComments(stmt, ctx);\n ctx.print(stmt, `throw `);\n stmt.error.visitExpression(this, ctx);\n ctx.println(stmt, `;`);\n return null;\n }\n visitWriteVarExpr(expr, ctx) {\n const lineWasEmpty = ctx.lineIsEmpty();\n if (!lineWasEmpty) {\n ctx.print(expr, '(');\n }\n ctx.print(expr, `${expr.name} = `);\n expr.value.visitExpression(this, ctx);\n if (!lineWasEmpty) {\n ctx.print(expr, ')');\n }\n return null;\n }\n visitWriteKeyExpr(expr, ctx) {\n const lineWasEmpty = ctx.lineIsEmpty();\n if (!lineWasEmpty) {\n ctx.print(expr, '(');\n }\n expr.receiver.visitExpression(this, ctx);\n ctx.print(expr, `[`);\n expr.index.visitExpression(this, ctx);\n ctx.print(expr, `] = `);\n expr.value.visitExpression(this, ctx);\n if (!lineWasEmpty) {\n ctx.print(expr, ')');\n }\n return null;\n }\n visitWritePropExpr(expr, ctx) {\n const lineWasEmpty = ctx.lineIsEmpty();\n if (!lineWasEmpty) {\n ctx.print(expr, '(');\n }\n expr.receiver.visitExpression(this, ctx);\n ctx.print(expr, `.${expr.name} = `);\n expr.value.visitExpression(this, ctx);\n if (!lineWasEmpty) {\n ctx.print(expr, ')');\n }\n return null;\n }\n visitInvokeMethodExpr(expr, ctx) {\n expr.receiver.visitExpression(this, ctx);\n let name = expr.name;\n if (expr.builtin != null) {\n name = this.getBuiltinMethodName(expr.builtin);\n if (name == null) {\n // some builtins just mean to skip the call.\n return null;\n }\n }\n ctx.print(expr, `.${name}(`);\n this.visitAllExpressions(expr.args, ctx, `,`);\n ctx.print(expr, `)`);\n return null;\n }\n visitInvokeFunctionExpr(expr, ctx) {\n expr.fn.visitExpression(this, ctx);\n ctx.print(expr, `(`);\n this.visitAllExpressions(expr.args, ctx, ',');\n ctx.print(expr, `)`);\n return null;\n }\n visitTaggedTemplateExpr(expr, ctx) {\n expr.tag.visitExpression(this, ctx);\n ctx.print(expr, '`' + expr.template.elements[0].rawText);\n for (let i = 1; i < expr.template.elements.length; i++) {\n ctx.print(expr, '${');\n expr.template.expressions[i - 1].visitExpression(this, ctx);\n ctx.print(expr, `}${expr.template.elements[i].rawText}`);\n }\n ctx.print(expr, '`');\n return null;\n }\n visitWrappedNodeExpr(ast, ctx) {\n throw new Error('Abstract emitter cannot visit WrappedNodeExpr.');\n }\n visitTypeofExpr(expr, ctx) {\n ctx.print(expr, 'typeof ');\n expr.expr.visitExpression(this, ctx);\n }\n visitReadVarExpr(ast, ctx) {\n let varName = ast.name;\n if (ast.builtin != null) {\n switch (ast.builtin) {\n case BuiltinVar.Super:\n varName = 'super';\n break;\n case BuiltinVar.This:\n varName = 'this';\n break;\n case BuiltinVar.CatchError:\n varName = CATCH_ERROR_VAR$1.name;\n break;\n case BuiltinVar.CatchStack:\n varName = CATCH_STACK_VAR$1.name;\n break;\n default:\n throw new Error(`Unknown builtin variable ${ast.builtin}`);\n }\n }\n ctx.print(ast, varName);\n return null;\n }\n visitInstantiateExpr(ast, ctx) {\n ctx.print(ast, `new `);\n ast.classExpr.visitExpression(this, ctx);\n ctx.print(ast, `(`);\n this.visitAllExpressions(ast.args, ctx, ',');\n ctx.print(ast, `)`);\n return null;\n }\n visitLiteralExpr(ast, ctx) {\n const value = ast.value;\n if (typeof value === 'string') {\n ctx.print(ast, escapeIdentifier(value, this._escapeDollarInStrings));\n }\n else {\n ctx.print(ast, `${value}`);\n }\n return null;\n }\n visitLocalizedString(ast, ctx) {\n const head = ast.serializeI18nHead();\n ctx.print(ast, '$localize `' + head.raw);\n for (let i = 1; i < ast.messageParts.length; i++) {\n ctx.print(ast, '${');\n ast.expressions[i - 1].visitExpression(this, ctx);\n ctx.print(ast, `}${ast.serializeI18nTemplatePart(i).raw}`);\n }\n ctx.print(ast, '`');\n return null;\n }\n visitConditionalExpr(ast, ctx) {\n ctx.print(ast, `(`);\n ast.condition.visitExpression(this, ctx);\n ctx.print(ast, '? ');\n ast.trueCase.visitExpression(this, ctx);\n ctx.print(ast, ': ');\n ast.falseCase.visitExpression(this, ctx);\n ctx.print(ast, `)`);\n return null;\n }\n visitNotExpr(ast, ctx) {\n ctx.print(ast, '!');\n ast.condition.visitExpression(this, ctx);\n return null;\n }\n visitAssertNotNullExpr(ast, ctx) {\n ast.condition.visitExpression(this, ctx);\n return null;\n }\n visitUnaryOperatorExpr(ast, ctx) {\n let opStr;\n switch (ast.operator) {\n case UnaryOperator.Plus:\n opStr = '+';\n break;\n case UnaryOperator.Minus:\n opStr = '-';\n break;\n default:\n throw new Error(`Unknown operator ${ast.operator}`);\n }\n if (ast.parens)\n ctx.print(ast, `(`);\n ctx.print(ast, opStr);\n ast.expr.visitExpression(this, ctx);\n if (ast.parens)\n ctx.print(ast, `)`);\n return null;\n }\n visitBinaryOperatorExpr(ast, ctx) {\n let opStr;\n switch (ast.operator) {\n case BinaryOperator.Equals:\n opStr = '==';\n break;\n case BinaryOperator.Identical:\n opStr = '===';\n break;\n case BinaryOperator.NotEquals:\n opStr = '!=';\n break;\n case BinaryOperator.NotIdentical:\n opStr = '!==';\n break;\n case BinaryOperator.And:\n opStr = '&&';\n break;\n case BinaryOperator.BitwiseAnd:\n opStr = '&';\n break;\n case BinaryOperator.Or:\n opStr = '||';\n break;\n case BinaryOperator.Plus:\n opStr = '+';\n break;\n case BinaryOperator.Minus:\n opStr = '-';\n break;\n case BinaryOperator.Divide:\n opStr = '/';\n break;\n case BinaryOperator.Multiply:\n opStr = '*';\n break;\n case BinaryOperator.Modulo:\n opStr = '%';\n break;\n case BinaryOperator.Lower:\n opStr = '<';\n break;\n case BinaryOperator.LowerEquals:\n opStr = '<=';\n break;\n case BinaryOperator.Bigger:\n opStr = '>';\n break;\n case BinaryOperator.BiggerEquals:\n opStr = '>=';\n break;\n default:\n throw new Error(`Unknown operator ${ast.operator}`);\n }\n if (ast.parens)\n ctx.print(ast, `(`);\n ast.lhs.visitExpression(this, ctx);\n ctx.print(ast, ` ${opStr} `);\n ast.rhs.visitExpression(this, ctx);\n if (ast.parens)\n ctx.print(ast, `)`);\n return null;\n }\n visitReadPropExpr(ast, ctx) {\n ast.receiver.visitExpression(this, ctx);\n ctx.print(ast, `.`);\n ctx.print(ast, ast.name);\n return null;\n }\n visitReadKeyExpr(ast, ctx) {\n ast.receiver.visitExpression(this, ctx);\n ctx.print(ast, `[`);\n ast.index.visitExpression(this, ctx);\n ctx.print(ast, `]`);\n return null;\n }\n visitLiteralArrayExpr(ast, ctx) {\n ctx.print(ast, `[`);\n this.visitAllExpressions(ast.entries, ctx, ',');\n ctx.print(ast, `]`);\n return null;\n }\n visitLiteralMapExpr(ast, ctx) {\n ctx.print(ast, `{`);\n this.visitAllObjects(entry => {\n ctx.print(ast, `${escapeIdentifier(entry.key, this._escapeDollarInStrings, entry.quoted)}:`);\n entry.value.visitExpression(this, ctx);\n }, ast.entries, ctx, ',');\n ctx.print(ast, `}`);\n return null;\n }\n visitCommaExpr(ast, ctx) {\n ctx.print(ast, '(');\n this.visitAllExpressions(ast.parts, ctx, ',');\n ctx.print(ast, ')');\n return null;\n }\n visitAllExpressions(expressions, ctx, separator) {\n this.visitAllObjects(expr => expr.visitExpression(this, ctx), expressions, ctx, separator);\n }\n visitAllObjects(handler, expressions, ctx, separator) {\n let incrementedIndent = false;\n for (let i = 0; i < expressions.length; i++) {\n if (i > 0) {\n if (ctx.lineLength() > 80) {\n ctx.print(null, separator, true);\n if (!incrementedIndent) {\n // continuation are marked with double indent.\n ctx.incIndent();\n ctx.incIndent();\n incrementedIndent = true;\n }\n }\n else {\n ctx.print(null, separator, false);\n }\n }\n handler(expressions[i]);\n }\n if (incrementedIndent) {\n // continuation are marked with double indent.\n ctx.decIndent();\n ctx.decIndent();\n }\n }\n visitAllStatements(statements, ctx) {\n statements.forEach((stmt) => stmt.visitStatement(this, ctx));\n }\n}\nfunction escapeIdentifier(input, escapeDollar, alwaysQuote = true) {\n if (input == null) {\n return null;\n }\n const body = input.replace(_SINGLE_QUOTE_ESCAPE_STRING_RE, (...match) => {\n if (match[0] == '$') {\n return escapeDollar ? '\\\\$' : '$';\n }\n else if (match[0] == '\\n') {\n return '\\\\n';\n }\n else if (match[0] == '\\r') {\n return '\\\\r';\n }\n else {\n return `\\\\${match[0]}`;\n }\n });\n const requiresQuotes = alwaysQuote || !_LEGAL_IDENTIFIER_RE.test(body);\n return requiresQuotes ? `'${body}'` : body;\n}\nfunction _createIndent(count) {\n let res = '';\n for (let i = 0; i < count; i++) {\n res += _INDENT_WITH;\n }\n return res;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Convert an object map with `Expression` values into a `LiteralMapExpr`.\n */\nfunction mapToMapExpression(map) {\n const result = Object.keys(map).map(key => ({\n key,\n // The assertion here is because really TypeScript doesn't allow us to express that if the\n // key is present, it will have a value, but this is true in reality.\n value: map[key],\n quoted: false,\n }));\n return literalMap(result);\n}\n/**\n * Convert metadata into an `Expression` in the given `OutputContext`.\n *\n * This operation will handle arrays, references to symbols, or literal `null` or `undefined`.\n */\nfunction convertMetaToOutput(meta, ctx) {\n if (Array.isArray(meta)) {\n return literalArr(meta.map(entry => convertMetaToOutput(entry, ctx)));\n }\n if (meta instanceof StaticSymbol) {\n return ctx.importExpr(meta);\n }\n if (meta == null) {\n return literal(meta);\n }\n throw new Error(`Internal error: Unsupported or unknown metadata: ${meta}`);\n}\nfunction typeWithParameters(type, numParams) {\n if (numParams === 0) {\n return expressionType(type);\n }\n const params = [];\n for (let i = 0; i < numParams; i++) {\n params.push(DYNAMIC_TYPE);\n }\n return expressionType(type, undefined, params);\n}\nconst ANIMATE_SYMBOL_PREFIX = '@';\nfunction prepareSyntheticPropertyName(name) {\n return `${ANIMATE_SYMBOL_PREFIX}${name}`;\n}\nfunction prepareSyntheticListenerName(name, phase) {\n return `${ANIMATE_SYMBOL_PREFIX}${name}.${phase}`;\n}\nfunction isSyntheticPropertyOrListener(name) {\n return name.charAt(0) == ANIMATE_SYMBOL_PREFIX;\n}\nfunction getSyntheticPropertyName(name) {\n // this will strip out listener phase values...\n // @foo.start => @foo\n const i = name.indexOf('.');\n name = i > 0 ? name.substring(0, i) : name;\n if (name.charAt(0) !== ANIMATE_SYMBOL_PREFIX) {\n name = ANIMATE_SYMBOL_PREFIX + name;\n }\n return name;\n}\nfunction getSafePropertyAccessString(accessor, name) {\n const escapedName = escapeIdentifier(name, false, false);\n return escapedName !== name ? `${accessor}[${escapedName}]` : `${accessor}.${name}`;\n}\nfunction prepareSyntheticListenerFunctionName(name, phase) {\n return `animation_${name}_${phase}`;\n}\nfunction jitOnlyGuardedExpression(expr) {\n return guardedExpression('ngJitMode', expr);\n}\nfunction devOnlyGuardedExpression(expr) {\n return guardedExpression('ngDevMode', expr);\n}\nfunction guardedExpression(guard, expr) {\n const guardExpr = new ExternalExpr({ name: guard, moduleName: null });\n const guardNotDefined = new BinaryOperatorExpr(BinaryOperator.Identical, new TypeofExpr(guardExpr), literal('undefined'));\n const guardUndefinedOrTrue = new BinaryOperatorExpr(BinaryOperator.Or, guardNotDefined, guardExpr, /* type */ undefined, \n /* sourceSpan */ undefined, true);\n return new BinaryOperatorExpr(BinaryOperator.And, guardUndefinedOrTrue, expr);\n}\nfunction wrapReference(value) {\n const wrapped = new WrappedNodeExpr(value);\n return { value: wrapped, type: wrapped };\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass Text {\n constructor(value, sourceSpan) {\n this.value = value;\n this.sourceSpan = sourceSpan;\n }\n visit(visitor) {\n return visitor.visitText(this);\n }\n}\nclass BoundText {\n constructor(value, sourceSpan, i18n) {\n this.value = value;\n this.sourceSpan = sourceSpan;\n this.i18n = i18n;\n }\n visit(visitor) {\n return visitor.visitBoundText(this);\n }\n}\n/**\n * Represents a text attribute in the template.\n *\n * `valueSpan` may not be present in cases where there is no value ``.\n * `keySpan` may also not be present for synthetic attributes from ICU expansions.\n */\nclass TextAttribute {\n constructor(name, value, sourceSpan, keySpan, valueSpan, i18n) {\n this.name = name;\n this.value = value;\n this.sourceSpan = sourceSpan;\n this.keySpan = keySpan;\n this.valueSpan = valueSpan;\n this.i18n = i18n;\n }\n visit(visitor) {\n return visitor.visitTextAttribute(this);\n }\n}\nclass BoundAttribute {\n constructor(name, type, securityContext, value, unit, sourceSpan, keySpan, valueSpan, i18n) {\n this.name = name;\n this.type = type;\n this.securityContext = securityContext;\n this.value = value;\n this.unit = unit;\n this.sourceSpan = sourceSpan;\n this.keySpan = keySpan;\n this.valueSpan = valueSpan;\n this.i18n = i18n;\n }\n static fromBoundElementProperty(prop, i18n) {\n if (prop.keySpan === undefined) {\n throw new Error(`Unexpected state: keySpan must be defined for bound attributes but was not for ${prop.name}: ${prop.sourceSpan}`);\n }\n return new BoundAttribute(prop.name, prop.type, prop.securityContext, prop.value, prop.unit, prop.sourceSpan, prop.keySpan, prop.valueSpan, i18n);\n }\n visit(visitor) {\n return visitor.visitBoundAttribute(this);\n }\n}\nclass BoundEvent {\n constructor(name, type, handler, target, phase, sourceSpan, handlerSpan, keySpan) {\n this.name = name;\n this.type = type;\n this.handler = handler;\n this.target = target;\n this.phase = phase;\n this.sourceSpan = sourceSpan;\n this.handlerSpan = handlerSpan;\n this.keySpan = keySpan;\n }\n static fromParsedEvent(event) {\n const target = event.type === 0 /* Regular */ ? event.targetOrPhase : null;\n const phase = event.type === 1 /* Animation */ ? event.targetOrPhase : null;\n if (event.keySpan === undefined) {\n throw new Error(`Unexpected state: keySpan must be defined for bound event but was not for ${event.name}: ${event.sourceSpan}`);\n }\n return new BoundEvent(event.name, event.type, event.handler, target, phase, event.sourceSpan, event.handlerSpan, event.keySpan);\n }\n visit(visitor) {\n return visitor.visitBoundEvent(this);\n }\n}\nclass Element {\n constructor(name, attributes, inputs, outputs, children, references, sourceSpan, startSourceSpan, endSourceSpan, i18n) {\n this.name = name;\n this.attributes = attributes;\n this.inputs = inputs;\n this.outputs = outputs;\n this.children = children;\n this.references = references;\n this.sourceSpan = sourceSpan;\n this.startSourceSpan = startSourceSpan;\n this.endSourceSpan = endSourceSpan;\n this.i18n = i18n;\n }\n visit(visitor) {\n return visitor.visitElement(this);\n }\n}\nclass Template {\n constructor(tagName, attributes, inputs, outputs, templateAttrs, children, references, variables, sourceSpan, startSourceSpan, endSourceSpan, i18n) {\n this.tagName = tagName;\n this.attributes = attributes;\n this.inputs = inputs;\n this.outputs = outputs;\n this.templateAttrs = templateAttrs;\n this.children = children;\n this.references = references;\n this.variables = variables;\n this.sourceSpan = sourceSpan;\n this.startSourceSpan = startSourceSpan;\n this.endSourceSpan = endSourceSpan;\n this.i18n = i18n;\n }\n visit(visitor) {\n return visitor.visitTemplate(this);\n }\n}\nclass Content {\n constructor(selector, attributes, sourceSpan, i18n) {\n this.selector = selector;\n this.attributes = attributes;\n this.sourceSpan = sourceSpan;\n this.i18n = i18n;\n this.name = 'ng-content';\n }\n visit(visitor) {\n return visitor.visitContent(this);\n }\n}\nclass Variable {\n constructor(name, value, sourceSpan, keySpan, valueSpan) {\n this.name = name;\n this.value = value;\n this.sourceSpan = sourceSpan;\n this.keySpan = keySpan;\n this.valueSpan = valueSpan;\n }\n visit(visitor) {\n return visitor.visitVariable(this);\n }\n}\nclass Reference {\n constructor(name, value, sourceSpan, keySpan, valueSpan) {\n this.name = name;\n this.value = value;\n this.sourceSpan = sourceSpan;\n this.keySpan = keySpan;\n this.valueSpan = valueSpan;\n }\n visit(visitor) {\n return visitor.visitReference(this);\n }\n}\nclass Icu {\n constructor(vars, placeholders, sourceSpan, i18n) {\n this.vars = vars;\n this.placeholders = placeholders;\n this.sourceSpan = sourceSpan;\n this.i18n = i18n;\n }\n visit(visitor) {\n return visitor.visitIcu(this);\n }\n}\nclass NullVisitor {\n visitElement(element) { }\n visitTemplate(template) { }\n visitContent(content) { }\n visitVariable(variable) { }\n visitReference(reference) { }\n visitTextAttribute(attribute) { }\n visitBoundAttribute(attribute) { }\n visitBoundEvent(attribute) { }\n visitText(text) { }\n visitBoundText(text) { }\n visitIcu(icu) { }\n}\nclass RecursiveVisitor {\n visitElement(element) {\n visitAll(this, element.attributes);\n visitAll(this, element.children);\n visitAll(this, element.references);\n }\n visitTemplate(template) {\n visitAll(this, template.attributes);\n visitAll(this, template.children);\n visitAll(this, template.references);\n visitAll(this, template.variables);\n }\n visitContent(content) { }\n visitVariable(variable) { }\n visitReference(reference) { }\n visitTextAttribute(attribute) { }\n visitBoundAttribute(attribute) { }\n visitBoundEvent(attribute) { }\n visitText(text) { }\n visitBoundText(text) { }\n visitIcu(icu) { }\n}\nclass TransformVisitor {\n visitElement(element) {\n const newAttributes = transformAll(this, element.attributes);\n const newInputs = transformAll(this, element.inputs);\n const newOutputs = transformAll(this, element.outputs);\n const newChildren = transformAll(this, element.children);\n const newReferences = transformAll(this, element.references);\n if (newAttributes != element.attributes || newInputs != element.inputs ||\n newOutputs != element.outputs || newChildren != element.children ||\n newReferences != element.references) {\n return new Element(element.name, newAttributes, newInputs, newOutputs, newChildren, newReferences, element.sourceSpan, element.startSourceSpan, element.endSourceSpan);\n }\n return element;\n }\n visitTemplate(template) {\n const newAttributes = transformAll(this, template.attributes);\n const newInputs = transformAll(this, template.inputs);\n const newOutputs = transformAll(this, template.outputs);\n const newTemplateAttrs = transformAll(this, template.templateAttrs);\n const newChildren = transformAll(this, template.children);\n const newReferences = transformAll(this, template.references);\n const newVariables = transformAll(this, template.variables);\n if (newAttributes != template.attributes || newInputs != template.inputs ||\n newOutputs != template.outputs || newTemplateAttrs != template.templateAttrs ||\n newChildren != template.children || newReferences != template.references ||\n newVariables != template.variables) {\n return new Template(template.tagName, newAttributes, newInputs, newOutputs, newTemplateAttrs, newChildren, newReferences, newVariables, template.sourceSpan, template.startSourceSpan, template.endSourceSpan);\n }\n return template;\n }\n visitContent(content) {\n return content;\n }\n visitVariable(variable) {\n return variable;\n }\n visitReference(reference) {\n return reference;\n }\n visitTextAttribute(attribute) {\n return attribute;\n }\n visitBoundAttribute(attribute) {\n return attribute;\n }\n visitBoundEvent(attribute) {\n return attribute;\n }\n visitText(text) {\n return text;\n }\n visitBoundText(text) {\n return text;\n }\n visitIcu(icu) {\n return icu;\n }\n}\nfunction visitAll(visitor, nodes) {\n const result = [];\n if (visitor.visit) {\n for (const node of nodes) {\n const newNode = visitor.visit(node) || node.visit(visitor);\n }\n }\n else {\n for (const node of nodes) {\n const newNode = node.visit(visitor);\n if (newNode) {\n result.push(newNode);\n }\n }\n }\n return result;\n}\nfunction transformAll(visitor, nodes) {\n const result = [];\n let changed = false;\n for (const node of nodes) {\n const newNode = node.visit(visitor);\n if (newNode) {\n result.push(newNode);\n }\n changed = changed || newNode != node;\n }\n return changed ? result : nodes;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass Message {\n /**\n * @param nodes message AST\n * @param placeholders maps placeholder names to static content and their source spans\n * @param placeholderToMessage maps placeholder names to messages (used for nested ICU messages)\n * @param meaning\n * @param description\n * @param customId\n */\n constructor(nodes, placeholders, placeholderToMessage, meaning, description, customId) {\n this.nodes = nodes;\n this.placeholders = placeholders;\n this.placeholderToMessage = placeholderToMessage;\n this.meaning = meaning;\n this.description = description;\n this.customId = customId;\n this.id = this.customId;\n /** The ids to use if there are no custom id and if `i18nLegacyMessageIdFormat` is not empty */\n this.legacyIds = [];\n if (nodes.length) {\n this.sources = [{\n filePath: nodes[0].sourceSpan.start.file.url,\n startLine: nodes[0].sourceSpan.start.line + 1,\n startCol: nodes[0].sourceSpan.start.col + 1,\n endLine: nodes[nodes.length - 1].sourceSpan.end.line + 1,\n endCol: nodes[0].sourceSpan.start.col + 1\n }];\n }\n else {\n this.sources = [];\n }\n }\n}\nclass Text$1 {\n constructor(value, sourceSpan) {\n this.value = value;\n this.sourceSpan = sourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitText(this, context);\n }\n}\n// TODO(vicb): do we really need this node (vs an array) ?\nclass Container {\n constructor(children, sourceSpan) {\n this.children = children;\n this.sourceSpan = sourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitContainer(this, context);\n }\n}\nclass Icu$1 {\n constructor(expression, type, cases, sourceSpan) {\n this.expression = expression;\n this.type = type;\n this.cases = cases;\n this.sourceSpan = sourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitIcu(this, context);\n }\n}\nclass TagPlaceholder {\n constructor(tag, attrs, startName, closeName, children, isVoid, \n // TODO sourceSpan should cover all (we need a startSourceSpan and endSourceSpan)\n sourceSpan, startSourceSpan, endSourceSpan) {\n this.tag = tag;\n this.attrs = attrs;\n this.startName = startName;\n this.closeName = closeName;\n this.children = children;\n this.isVoid = isVoid;\n this.sourceSpan = sourceSpan;\n this.startSourceSpan = startSourceSpan;\n this.endSourceSpan = endSourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitTagPlaceholder(this, context);\n }\n}\nclass Placeholder {\n constructor(value, name, sourceSpan) {\n this.value = value;\n this.name = name;\n this.sourceSpan = sourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitPlaceholder(this, context);\n }\n}\nclass IcuPlaceholder {\n constructor(value, name, sourceSpan) {\n this.value = value;\n this.name = name;\n this.sourceSpan = sourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitIcuPlaceholder(this, context);\n }\n}\n// Clone the AST\nclass CloneVisitor {\n visitText(text, context) {\n return new Text$1(text.value, text.sourceSpan);\n }\n visitContainer(container, context) {\n const children = container.children.map(n => n.visit(this, context));\n return new Container(children, container.sourceSpan);\n }\n visitIcu(icu, context) {\n const cases = {};\n Object.keys(icu.cases).forEach(key => cases[key] = icu.cases[key].visit(this, context));\n const msg = new Icu$1(icu.expression, icu.type, cases, icu.sourceSpan);\n msg.expressionPlaceholder = icu.expressionPlaceholder;\n return msg;\n }\n visitTagPlaceholder(ph, context) {\n const children = ph.children.map(n => n.visit(this, context));\n return new TagPlaceholder(ph.tag, ph.attrs, ph.startName, ph.closeName, children, ph.isVoid, ph.sourceSpan, ph.startSourceSpan, ph.endSourceSpan);\n }\n visitPlaceholder(ph, context) {\n return new Placeholder(ph.value, ph.name, ph.sourceSpan);\n }\n visitIcuPlaceholder(ph, context) {\n return new IcuPlaceholder(ph.value, ph.name, ph.sourceSpan);\n }\n}\n// Visit all the nodes recursively\nclass RecurseVisitor {\n visitText(text, context) { }\n visitContainer(container, context) {\n container.children.forEach(child => child.visit(this));\n }\n visitIcu(icu, context) {\n Object.keys(icu.cases).forEach(k => {\n icu.cases[k].visit(this);\n });\n }\n visitTagPlaceholder(ph, context) {\n ph.children.forEach(child => child.visit(this));\n }\n visitPlaceholder(ph, context) { }\n visitIcuPlaceholder(ph, context) { }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Represents a big integer using a buffer of its individual digits, with the least significant\n * digit stored at the beginning of the array (little endian).\n *\n * For performance reasons, each instance is mutable. The addition operation can be done in-place\n * to reduce memory pressure of allocation for the digits array.\n */\nclass BigInteger {\n /**\n * Creates a big integer using its individual digits in little endian storage.\n */\n constructor(digits) {\n this.digits = digits;\n }\n static zero() {\n return new BigInteger([0]);\n }\n static one() {\n return new BigInteger([1]);\n }\n /**\n * Creates a clone of this instance.\n */\n clone() {\n return new BigInteger(this.digits.slice());\n }\n /**\n * Returns a new big integer with the sum of `this` and `other` as its value. This does not mutate\n * `this` but instead returns a new instance, unlike `addToSelf`.\n */\n add(other) {\n const result = this.clone();\n result.addToSelf(other);\n return result;\n }\n /**\n * Adds `other` to the instance itself, thereby mutating its value.\n */\n addToSelf(other) {\n const maxNrOfDigits = Math.max(this.digits.length, other.digits.length);\n let carry = 0;\n for (let i = 0; i < maxNrOfDigits; i++) {\n let digitSum = carry;\n if (i < this.digits.length) {\n digitSum += this.digits[i];\n }\n if (i < other.digits.length) {\n digitSum += other.digits[i];\n }\n if (digitSum >= 10) {\n this.digits[i] = digitSum - 10;\n carry = 1;\n }\n else {\n this.digits[i] = digitSum;\n carry = 0;\n }\n }\n // Apply a remaining carry if needed.\n if (carry > 0) {\n this.digits[maxNrOfDigits] = 1;\n }\n }\n /**\n * Builds the decimal string representation of the big integer. As this is stored in\n * little endian, the digits are concatenated in reverse order.\n */\n toString() {\n let res = '';\n for (let i = this.digits.length - 1; i >= 0; i--) {\n res += this.digits[i];\n }\n return res;\n }\n}\n/**\n * Represents a big integer which is optimized for multiplication operations, as its power-of-twos\n * are memoized. See `multiplyBy()` for details on the multiplication algorithm.\n */\nclass BigIntForMultiplication {\n constructor(value) {\n this.powerOfTwos = [value];\n }\n /**\n * Returns the big integer itself.\n */\n getValue() {\n return this.powerOfTwos[0];\n }\n /**\n * Computes the value for `num * b`, where `num` is a JS number and `b` is a big integer. The\n * value for `b` is represented by a storage model that is optimized for this computation.\n *\n * This operation is implemented in N(log2(num)) by continuous halving of the number, where the\n * least-significant bit (LSB) is tested in each iteration. If the bit is set, the bit's index is\n * used as exponent into the power-of-two multiplication of `b`.\n *\n * As an example, consider the multiplication num=42, b=1337. In binary 42 is 0b00101010 and the\n * algorithm unrolls into the following iterations:\n *\n * Iteration | num | LSB | b * 2^iter | Add? | product\n * -----------|------------|------|------------|------|--------\n * 0 | 0b00101010 | 0 | 1337 | No | 0\n * 1 | 0b00010101 | 1 | 2674 | Yes | 2674\n * 2 | 0b00001010 | 0 | 5348 | No | 2674\n * 3 | 0b00000101 | 1 | 10696 | Yes | 13370\n * 4 | 0b00000010 | 0 | 21392 | No | 13370\n * 5 | 0b00000001 | 1 | 42784 | Yes | 56154\n * 6 | 0b00000000 | 0 | 85568 | No | 56154\n *\n * The computed product of 56154 is indeed the correct result.\n *\n * The `BigIntForMultiplication` representation for a big integer provides memoized access to the\n * power-of-two values to reduce the workload in computing those values.\n */\n multiplyBy(num) {\n const product = BigInteger.zero();\n this.multiplyByAndAddTo(num, product);\n return product;\n }\n /**\n * See `multiplyBy()` for details. This function allows for the computed product to be added\n * directly to the provided result big integer.\n */\n multiplyByAndAddTo(num, result) {\n for (let exponent = 0; num !== 0; num = num >>> 1, exponent++) {\n if (num & 1) {\n const value = this.getMultipliedByPowerOfTwo(exponent);\n result.addToSelf(value);\n }\n }\n }\n /**\n * Computes and memoizes the big integer value for `this.number * 2^exponent`.\n */\n getMultipliedByPowerOfTwo(exponent) {\n // Compute the powers up until the requested exponent, where each value is computed from its\n // predecessor. This is simple as `this.number * 2^(exponent - 1)` only has to be doubled (i.e.\n // added to itself) to reach `this.number * 2^exponent`.\n for (let i = this.powerOfTwos.length; i <= exponent; i++) {\n const previousPower = this.powerOfTwos[i - 1];\n this.powerOfTwos[i] = previousPower.add(previousPower);\n }\n return this.powerOfTwos[exponent];\n }\n}\n/**\n * Represents an exponentiation operation for the provided base, of which exponents are computed and\n * memoized. The results are represented by a `BigIntForMultiplication` which is tailored for\n * multiplication operations by memoizing the power-of-twos. This effectively results in a matrix\n * representation that is lazily computed upon request.\n */\nclass BigIntExponentiation {\n constructor(base) {\n this.base = base;\n this.exponents = [new BigIntForMultiplication(BigInteger.one())];\n }\n /**\n * Compute the value for `this.base^exponent`, resulting in a big integer that is optimized for\n * further multiplication operations.\n */\n toThePowerOf(exponent) {\n // Compute the results up until the requested exponent, where every value is computed from its\n // predecessor. This is because `this.base^(exponent - 1)` only has to be multiplied by `base`\n // to reach `this.base^exponent`.\n for (let i = this.exponents.length; i <= exponent; i++) {\n const value = this.exponents[i - 1].multiplyBy(this.base);\n this.exponents[i] = new BigIntForMultiplication(value);\n }\n return this.exponents[exponent];\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Return the message id or compute it using the XLIFF1 digest.\n */\nfunction digest(message) {\n return message.id || computeDigest(message);\n}\n/**\n * Compute the message id using the XLIFF1 digest.\n */\nfunction computeDigest(message) {\n return sha1(serializeNodes(message.nodes).join('') + `[${message.meaning}]`);\n}\n/**\n * Return the message id or compute it using the XLIFF2/XMB/$localize digest.\n */\nfunction decimalDigest(message) {\n return message.id || computeDecimalDigest(message);\n}\n/**\n * Compute the message id using the XLIFF2/XMB/$localize digest.\n */\nfunction computeDecimalDigest(message) {\n const visitor = new _SerializerIgnoreIcuExpVisitor();\n const parts = message.nodes.map(a => a.visit(visitor, null));\n return computeMsgId(parts.join(''), message.meaning);\n}\n/**\n * Serialize the i18n ast to something xml-like in order to generate an UID.\n *\n * The visitor is also used in the i18n parser tests\n *\n * @internal\n */\nclass _SerializerVisitor {\n visitText(text, context) {\n return text.value;\n }\n visitContainer(container, context) {\n return `[${container.children.map(child => child.visit(this)).join(', ')}]`;\n }\n visitIcu(icu, context) {\n const strCases = Object.keys(icu.cases).map((k) => `${k} {${icu.cases[k].visit(this)}}`);\n return `{${icu.expression}, ${icu.type}, ${strCases.join(', ')}}`;\n }\n visitTagPlaceholder(ph, context) {\n return ph.isVoid ?\n `` :\n `${ph.children.map(child => child.visit(this)).join(', ')}`;\n }\n visitPlaceholder(ph, context) {\n return ph.value ? `${ph.value}` : ``;\n }\n visitIcuPlaceholder(ph, context) {\n return `${ph.value.visit(this)}`;\n }\n}\nconst serializerVisitor = new _SerializerVisitor();\nfunction serializeNodes(nodes) {\n return nodes.map(a => a.visit(serializerVisitor, null));\n}\n/**\n * Serialize the i18n ast to something xml-like in order to generate an UID.\n *\n * Ignore the ICU expressions so that message IDs stays identical if only the expression changes.\n *\n * @internal\n */\nclass _SerializerIgnoreIcuExpVisitor extends _SerializerVisitor {\n visitIcu(icu, context) {\n let strCases = Object.keys(icu.cases).map((k) => `${k} {${icu.cases[k].visit(this)}}`);\n // Do not take the expression into account\n return `{${icu.type}, ${strCases.join(', ')}}`;\n }\n}\n/**\n * Compute the SHA1 of the given string\n *\n * see https://csrc.nist.gov/publications/fips/fips180-4/fips-180-4.pdf\n *\n * WARNING: this function has not been designed not tested with security in mind.\n * DO NOT USE IT IN A SECURITY SENSITIVE CONTEXT.\n */\nfunction sha1(str) {\n const utf8 = utf8Encode(str);\n const words32 = bytesToWords32(utf8, Endian.Big);\n const len = utf8.length * 8;\n const w = newArray(80);\n let a = 0x67452301, b = 0xefcdab89, c = 0x98badcfe, d = 0x10325476, e = 0xc3d2e1f0;\n words32[len >> 5] |= 0x80 << (24 - len % 32);\n words32[((len + 64 >> 9) << 4) + 15] = len;\n for (let i = 0; i < words32.length; i += 16) {\n const h0 = a, h1 = b, h2 = c, h3 = d, h4 = e;\n for (let j = 0; j < 80; j++) {\n if (j < 16) {\n w[j] = words32[i + j];\n }\n else {\n w[j] = rol32(w[j - 3] ^ w[j - 8] ^ w[j - 14] ^ w[j - 16], 1);\n }\n const fkVal = fk(j, b, c, d);\n const f = fkVal[0];\n const k = fkVal[1];\n const temp = [rol32(a, 5), f, e, k, w[j]].reduce(add32);\n e = d;\n d = c;\n c = rol32(b, 30);\n b = a;\n a = temp;\n }\n a = add32(a, h0);\n b = add32(b, h1);\n c = add32(c, h2);\n d = add32(d, h3);\n e = add32(e, h4);\n }\n return bytesToHexString(words32ToByteString([a, b, c, d, e]));\n}\nfunction fk(index, b, c, d) {\n if (index < 20) {\n return [(b & c) | (~b & d), 0x5a827999];\n }\n if (index < 40) {\n return [b ^ c ^ d, 0x6ed9eba1];\n }\n if (index < 60) {\n return [(b & c) | (b & d) | (c & d), 0x8f1bbcdc];\n }\n return [b ^ c ^ d, 0xca62c1d6];\n}\n/**\n * Compute the fingerprint of the given string\n *\n * The output is 64 bit number encoded as a decimal string\n *\n * based on:\n * https://github.com/google/closure-compiler/blob/master/src/com/google/javascript/jscomp/GoogleJsMessageIdGenerator.java\n */\nfunction fingerprint(str) {\n const utf8 = utf8Encode(str);\n let hi = hash32(utf8, 0);\n let lo = hash32(utf8, 102072);\n if (hi == 0 && (lo == 0 || lo == 1)) {\n hi = hi ^ 0x130f9bef;\n lo = lo ^ -0x6b5f56d8;\n }\n return [hi, lo];\n}\nfunction computeMsgId(msg, meaning = '') {\n let msgFingerprint = fingerprint(msg);\n if (meaning) {\n const meaningFingerprint = fingerprint(meaning);\n msgFingerprint = add64(rol64(msgFingerprint, 1), meaningFingerprint);\n }\n const hi = msgFingerprint[0];\n const lo = msgFingerprint[1];\n return wordsToDecimalString(hi & 0x7fffffff, lo);\n}\nfunction hash32(bytes, c) {\n let a = 0x9e3779b9, b = 0x9e3779b9;\n let i;\n const len = bytes.length;\n for (i = 0; i + 12 <= len; i += 12) {\n a = add32(a, wordAt(bytes, i, Endian.Little));\n b = add32(b, wordAt(bytes, i + 4, Endian.Little));\n c = add32(c, wordAt(bytes, i + 8, Endian.Little));\n const res = mix(a, b, c);\n a = res[0], b = res[1], c = res[2];\n }\n a = add32(a, wordAt(bytes, i, Endian.Little));\n b = add32(b, wordAt(bytes, i + 4, Endian.Little));\n // the first byte of c is reserved for the length\n c = add32(c, len);\n c = add32(c, wordAt(bytes, i + 8, Endian.Little) << 8);\n return mix(a, b, c)[2];\n}\n// clang-format off\nfunction mix(a, b, c) {\n a = sub32(a, b);\n a = sub32(a, c);\n a ^= c >>> 13;\n b = sub32(b, c);\n b = sub32(b, a);\n b ^= a << 8;\n c = sub32(c, a);\n c = sub32(c, b);\n c ^= b >>> 13;\n a = sub32(a, b);\n a = sub32(a, c);\n a ^= c >>> 12;\n b = sub32(b, c);\n b = sub32(b, a);\n b ^= a << 16;\n c = sub32(c, a);\n c = sub32(c, b);\n c ^= b >>> 5;\n a = sub32(a, b);\n a = sub32(a, c);\n a ^= c >>> 3;\n b = sub32(b, c);\n b = sub32(b, a);\n b ^= a << 10;\n c = sub32(c, a);\n c = sub32(c, b);\n c ^= b >>> 15;\n return [a, b, c];\n}\n// clang-format on\n// Utils\nvar Endian;\n(function (Endian) {\n Endian[Endian[\"Little\"] = 0] = \"Little\";\n Endian[Endian[\"Big\"] = 1] = \"Big\";\n})(Endian || (Endian = {}));\nfunction add32(a, b) {\n return add32to64(a, b)[1];\n}\nfunction add32to64(a, b) {\n const low = (a & 0xffff) + (b & 0xffff);\n const high = (a >>> 16) + (b >>> 16) + (low >>> 16);\n return [high >>> 16, (high << 16) | (low & 0xffff)];\n}\nfunction add64(a, b) {\n const ah = a[0], al = a[1];\n const bh = b[0], bl = b[1];\n const result = add32to64(al, bl);\n const carry = result[0];\n const l = result[1];\n const h = add32(add32(ah, bh), carry);\n return [h, l];\n}\nfunction sub32(a, b) {\n const low = (a & 0xffff) - (b & 0xffff);\n const high = (a >> 16) - (b >> 16) + (low >> 16);\n return (high << 16) | (low & 0xffff);\n}\n// Rotate a 32b number left `count` position\nfunction rol32(a, count) {\n return (a << count) | (a >>> (32 - count));\n}\n// Rotate a 64b number left `count` position\nfunction rol64(num, count) {\n const hi = num[0], lo = num[1];\n const h = (hi << count) | (lo >>> (32 - count));\n const l = (lo << count) | (hi >>> (32 - count));\n return [h, l];\n}\nfunction bytesToWords32(bytes, endian) {\n const size = (bytes.length + 3) >>> 2;\n const words32 = [];\n for (let i = 0; i < size; i++) {\n words32[i] = wordAt(bytes, i * 4, endian);\n }\n return words32;\n}\nfunction byteAt(bytes, index) {\n return index >= bytes.length ? 0 : bytes[index];\n}\nfunction wordAt(bytes, index, endian) {\n let word = 0;\n if (endian === Endian.Big) {\n for (let i = 0; i < 4; i++) {\n word += byteAt(bytes, index + i) << (24 - 8 * i);\n }\n }\n else {\n for (let i = 0; i < 4; i++) {\n word += byteAt(bytes, index + i) << 8 * i;\n }\n }\n return word;\n}\nfunction words32ToByteString(words32) {\n return words32.reduce((bytes, word) => bytes.concat(word32ToByteString(word)), []);\n}\nfunction word32ToByteString(word) {\n let bytes = [];\n for (let i = 0; i < 4; i++) {\n bytes.push((word >>> 8 * (3 - i)) & 0xff);\n }\n return bytes;\n}\nfunction bytesToHexString(bytes) {\n let hex = '';\n for (let i = 0; i < bytes.length; i++) {\n const b = byteAt(bytes, i);\n hex += (b >>> 4).toString(16) + (b & 0x0f).toString(16);\n }\n return hex.toLowerCase();\n}\n/**\n * Create a shared exponentiation pool for base-256 computations. This shared pool provides memoized\n * power-of-256 results with memoized power-of-two computations for efficient multiplication.\n *\n * For our purposes, this can be safely stored as a global without memory concerns. The reason is\n * that we encode two words, so only need the 0th (for the low word) and 4th (for the high word)\n * exponent.\n */\nconst base256 = new BigIntExponentiation(256);\n/**\n * Represents two 32-bit words as a single decimal number. This requires a big integer storage\n * model as JS numbers are not accurate enough to represent the 64-bit number.\n *\n * Based on https://www.danvk.org/hex2dec.html\n */\nfunction wordsToDecimalString(hi, lo) {\n // Encode the four bytes in lo in the lower digits of the decimal number.\n // Note: the multiplication results in lo itself but represented by a big integer using its\n // decimal digits.\n const decimal = base256.toThePowerOf(0).multiplyBy(lo);\n // Encode the four bytes in hi above the four lo bytes. lo is a maximum of (2^8)^4, which is why\n // this multiplication factor is applied.\n base256.toThePowerOf(4).multiplyByAndAddTo(hi, decimal);\n return decimal.toString();\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass Serializer {\n // Creates a name mapper, see `PlaceholderMapper`\n // Returning `null` means that no name mapping is used.\n createNameMapper(message) {\n return null;\n }\n}\n/**\n * A simple mapper that take a function to transform an internal name to a public name\n */\nclass SimplePlaceholderMapper extends RecurseVisitor {\n // create a mapping from the message\n constructor(message, mapName) {\n super();\n this.mapName = mapName;\n this.internalToPublic = {};\n this.publicToNextId = {};\n this.publicToInternal = {};\n message.nodes.forEach(node => node.visit(this));\n }\n toPublicName(internalName) {\n return this.internalToPublic.hasOwnProperty(internalName) ?\n this.internalToPublic[internalName] :\n null;\n }\n toInternalName(publicName) {\n return this.publicToInternal.hasOwnProperty(publicName) ? this.publicToInternal[publicName] :\n null;\n }\n visitText(text, context) {\n return null;\n }\n visitTagPlaceholder(ph, context) {\n this.visitPlaceholderName(ph.startName);\n super.visitTagPlaceholder(ph, context);\n this.visitPlaceholderName(ph.closeName);\n }\n visitPlaceholder(ph, context) {\n this.visitPlaceholderName(ph.name);\n }\n visitIcuPlaceholder(ph, context) {\n this.visitPlaceholderName(ph.name);\n }\n // XMB placeholders could only contains A-Z, 0-9 and _\n visitPlaceholderName(internalName) {\n if (!internalName || this.internalToPublic.hasOwnProperty(internalName)) {\n return;\n }\n let publicName = this.mapName(internalName);\n if (this.publicToInternal.hasOwnProperty(publicName)) {\n // Create a new XMB when it has already been used\n const nextId = this.publicToNextId[publicName];\n this.publicToNextId[publicName] = nextId + 1;\n publicName = `${publicName}_${nextId}`;\n }\n else {\n this.publicToNextId[publicName] = 1;\n }\n this.internalToPublic[internalName] = publicName;\n this.publicToInternal[publicName] = internalName;\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass _Visitor {\n visitTag(tag) {\n const strAttrs = this._serializeAttributes(tag.attrs);\n if (tag.children.length == 0) {\n return `<${tag.name}${strAttrs}/>`;\n }\n const strChildren = tag.children.map(node => node.visit(this));\n return `<${tag.name}${strAttrs}>${strChildren.join('')}`;\n }\n visitText(text) {\n return text.value;\n }\n visitDeclaration(decl) {\n return ``;\n }\n _serializeAttributes(attrs) {\n const strAttrs = Object.keys(attrs).map((name) => `${name}=\"${attrs[name]}\"`).join(' ');\n return strAttrs.length > 0 ? ' ' + strAttrs : '';\n }\n visitDoctype(doctype) {\n return ``;\n }\n}\nconst _visitor = new _Visitor();\nfunction serialize(nodes) {\n return nodes.map((node) => node.visit(_visitor)).join('');\n}\nclass Declaration {\n constructor(unescapedAttrs) {\n this.attrs = {};\n Object.keys(unescapedAttrs).forEach((k) => {\n this.attrs[k] = escapeXml(unescapedAttrs[k]);\n });\n }\n visit(visitor) {\n return visitor.visitDeclaration(this);\n }\n}\nclass Doctype {\n constructor(rootTag, dtd) {\n this.rootTag = rootTag;\n this.dtd = dtd;\n }\n visit(visitor) {\n return visitor.visitDoctype(this);\n }\n}\nclass Tag {\n constructor(name, unescapedAttrs = {}, children = []) {\n this.name = name;\n this.children = children;\n this.attrs = {};\n Object.keys(unescapedAttrs).forEach((k) => {\n this.attrs[k] = escapeXml(unescapedAttrs[k]);\n });\n }\n visit(visitor) {\n return visitor.visitTag(this);\n }\n}\nclass Text$2 {\n constructor(unescapedValue) {\n this.value = escapeXml(unescapedValue);\n }\n visit(visitor) {\n return visitor.visitText(this);\n }\n}\nclass CR extends Text$2 {\n constructor(ws = 0) {\n super(`\\n${new Array(ws + 1).join(' ')}`);\n }\n}\nconst _ESCAPED_CHARS = [\n [/&/g, '&'],\n [/\"/g, '"'],\n [/'/g, '''],\n [//g, '>'],\n];\n// Escape `_ESCAPED_CHARS` characters in the given text with encoded entities\nfunction escapeXml(text) {\n return _ESCAPED_CHARS.reduce((text, entry) => text.replace(entry[0], entry[1]), text);\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst _MESSAGES_TAG = 'messagebundle';\nconst _MESSAGE_TAG = 'msg';\nconst _PLACEHOLDER_TAG = 'ph';\nconst _EXAMPLE_TAG = 'ex';\nconst _SOURCE_TAG = 'source';\nconst _DOCTYPE = `\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n`;\nclass Xmb extends Serializer {\n write(messages, locale) {\n const exampleVisitor = new ExampleVisitor();\n const visitor = new _Visitor$1();\n let rootNode = new Tag(_MESSAGES_TAG);\n messages.forEach(message => {\n const attrs = { id: message.id };\n if (message.description) {\n attrs['desc'] = message.description;\n }\n if (message.meaning) {\n attrs['meaning'] = message.meaning;\n }\n let sourceTags = [];\n message.sources.forEach((source) => {\n sourceTags.push(new Tag(_SOURCE_TAG, {}, [new Text$2(`${source.filePath}:${source.startLine}${source.endLine !== source.startLine ? ',' + source.endLine : ''}`)]));\n });\n rootNode.children.push(new CR(2), new Tag(_MESSAGE_TAG, attrs, [...sourceTags, ...visitor.serialize(message.nodes)]));\n });\n rootNode.children.push(new CR());\n return serialize([\n new Declaration({ version: '1.0', encoding: 'UTF-8' }),\n new CR(),\n new Doctype(_MESSAGES_TAG, _DOCTYPE),\n new CR(),\n exampleVisitor.addDefaultExamples(rootNode),\n new CR(),\n ]);\n }\n load(content, url) {\n throw new Error('Unsupported');\n }\n digest(message) {\n return digest$1(message);\n }\n createNameMapper(message) {\n return new SimplePlaceholderMapper(message, toPublicName);\n }\n}\nclass _Visitor$1 {\n visitText(text, context) {\n return [new Text$2(text.value)];\n }\n visitContainer(container, context) {\n const nodes = [];\n container.children.forEach((node) => nodes.push(...node.visit(this)));\n return nodes;\n }\n visitIcu(icu, context) {\n const nodes = [new Text$2(`{${icu.expressionPlaceholder}, ${icu.type}, `)];\n Object.keys(icu.cases).forEach((c) => {\n nodes.push(new Text$2(`${c} {`), ...icu.cases[c].visit(this), new Text$2(`} `));\n });\n nodes.push(new Text$2(`}`));\n return nodes;\n }\n visitTagPlaceholder(ph, context) {\n const startTagAsText = new Text$2(`<${ph.tag}>`);\n const startEx = new Tag(_EXAMPLE_TAG, {}, [startTagAsText]);\n // TC requires PH to have a non empty EX, and uses the text node to show the \"original\" value.\n const startTagPh = new Tag(_PLACEHOLDER_TAG, { name: ph.startName }, [startEx, startTagAsText]);\n if (ph.isVoid) {\n // void tags have no children nor closing tags\n return [startTagPh];\n }\n const closeTagAsText = new Text$2(``);\n const closeEx = new Tag(_EXAMPLE_TAG, {}, [closeTagAsText]);\n // TC requires PH to have a non empty EX, and uses the text node to show the \"original\" value.\n const closeTagPh = new Tag(_PLACEHOLDER_TAG, { name: ph.closeName }, [closeEx, closeTagAsText]);\n return [startTagPh, ...this.serialize(ph.children), closeTagPh];\n }\n visitPlaceholder(ph, context) {\n const interpolationAsText = new Text$2(`{{${ph.value}}}`);\n // Example tag needs to be not-empty for TC.\n const exTag = new Tag(_EXAMPLE_TAG, {}, [interpolationAsText]);\n return [\n // TC requires PH to have a non empty EX, and uses the text node to show the \"original\" value.\n new Tag(_PLACEHOLDER_TAG, { name: ph.name }, [exTag, interpolationAsText])\n ];\n }\n visitIcuPlaceholder(ph, context) {\n const icuExpression = ph.value.expression;\n const icuType = ph.value.type;\n const icuCases = Object.keys(ph.value.cases).map((value) => value + ' {...}').join(' ');\n const icuAsText = new Text$2(`{${icuExpression}, ${icuType}, ${icuCases}}`);\n const exTag = new Tag(_EXAMPLE_TAG, {}, [icuAsText]);\n return [\n // TC requires PH to have a non empty EX, and uses the text node to show the \"original\" value.\n new Tag(_PLACEHOLDER_TAG, { name: ph.name }, [exTag, icuAsText])\n ];\n }\n serialize(nodes) {\n return [].concat(...nodes.map(node => node.visit(this)));\n }\n}\nfunction digest$1(message) {\n return decimalDigest(message);\n}\n// TC requires at least one non-empty example on placeholders\nclass ExampleVisitor {\n addDefaultExamples(node) {\n node.visit(this);\n return node;\n }\n visitTag(tag) {\n if (tag.name === _PLACEHOLDER_TAG) {\n if (!tag.children || tag.children.length == 0) {\n const exText = new Text$2(tag.attrs['name'] || '...');\n tag.children = [new Tag(_EXAMPLE_TAG, {}, [exText])];\n }\n }\n else if (tag.children) {\n tag.children.forEach(node => node.visit(this));\n }\n }\n visitText(text) { }\n visitDeclaration(decl) { }\n visitDoctype(doctype) { }\n}\n// XMB/XTB placeholders can only contain A-Z, 0-9 and _\nfunction toPublicName(internalName) {\n return internalName.toUpperCase().replace(/[^A-Z0-9_]/g, '_');\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/* Closure variables holding messages must be named `MSG_[A-Z0-9]+` */\nconst CLOSURE_TRANSLATION_VAR_PREFIX = 'MSG_';\n/**\n * Prefix for non-`goog.getMsg` i18n-related vars.\n * Note: the prefix uses lowercase characters intentionally due to a Closure behavior that\n * considers variables like `I18N_0` as constants and throws an error when their value changes.\n */\nconst TRANSLATION_VAR_PREFIX = 'i18n_';\n/** Name of the i18n attributes **/\nconst I18N_ATTR = 'i18n';\nconst I18N_ATTR_PREFIX = 'i18n-';\n/** Prefix of var expressions used in ICUs */\nconst I18N_ICU_VAR_PREFIX = 'VAR_';\n/** Prefix of ICU expressions for post processing */\nconst I18N_ICU_MAPPING_PREFIX = 'I18N_EXP_';\n/** Placeholder wrapper for i18n expressions **/\nconst I18N_PLACEHOLDER_SYMBOL = '�';\nfunction isI18nAttribute(name) {\n return name === I18N_ATTR || name.startsWith(I18N_ATTR_PREFIX);\n}\nfunction isI18nRootNode(meta) {\n return meta instanceof Message;\n}\nfunction isSingleI18nIcu(meta) {\n return isI18nRootNode(meta) && meta.nodes.length === 1 && meta.nodes[0] instanceof Icu$1;\n}\nfunction hasI18nMeta(node) {\n return !!node.i18n;\n}\nfunction hasI18nAttrs(element) {\n return element.attrs.some((attr) => isI18nAttribute(attr.name));\n}\nfunction icuFromI18nMessage(message) {\n return message.nodes[0];\n}\nfunction wrapI18nPlaceholder(content, contextId = 0) {\n const blockId = contextId > 0 ? `:${contextId}` : '';\n return `${I18N_PLACEHOLDER_SYMBOL}${content}${blockId}${I18N_PLACEHOLDER_SYMBOL}`;\n}\nfunction assembleI18nBoundString(strings, bindingStartIndex = 0, contextId = 0) {\n if (!strings.length)\n return '';\n let acc = '';\n const lastIdx = strings.length - 1;\n for (let i = 0; i < lastIdx; i++) {\n acc += `${strings[i]}${wrapI18nPlaceholder(bindingStartIndex + i, contextId)}`;\n }\n acc += strings[lastIdx];\n return acc;\n}\nfunction getSeqNumberGenerator(startsAt = 0) {\n let current = startsAt;\n return () => current++;\n}\nfunction placeholdersToParams(placeholders) {\n const params = {};\n placeholders.forEach((values, key) => {\n params[key] = literal(values.length > 1 ? `[${values.join('|')}]` : values[0]);\n });\n return params;\n}\nfunction updatePlaceholderMap(map, name, ...values) {\n const current = map.get(name) || [];\n current.push(...values);\n map.set(name, current);\n}\nfunction assembleBoundTextPlaceholders(meta, bindingStartIndex = 0, contextId = 0) {\n const startIdx = bindingStartIndex;\n const placeholders = new Map();\n const node = meta instanceof Message ? meta.nodes.find(node => node instanceof Container) : meta;\n if (node) {\n node\n .children\n .filter((child) => child instanceof Placeholder)\n .forEach((child, idx) => {\n const content = wrapI18nPlaceholder(startIdx + idx, contextId);\n updatePlaceholderMap(placeholders, child.name, content);\n });\n }\n return placeholders;\n}\n/**\n * Format the placeholder names in a map of placeholders to expressions.\n *\n * The placeholder names are converted from \"internal\" format (e.g. `START_TAG_DIV_1`) to \"external\"\n * format (e.g. `startTagDiv_1`).\n *\n * @param params A map of placeholder names to expressions.\n * @param useCamelCase whether to camelCase the placeholder name when formatting.\n * @returns A new map of formatted placeholder names to expressions.\n */\nfunction i18nFormatPlaceholderNames(params = {}, useCamelCase) {\n const _params = {};\n if (params && Object.keys(params).length) {\n Object.keys(params).forEach(key => _params[formatI18nPlaceholderName(key, useCamelCase)] = params[key]);\n }\n return _params;\n}\n/**\n * Converts internal placeholder names to public-facing format\n * (for example to use in goog.getMsg call).\n * Example: `START_TAG_DIV_1` is converted to `startTagDiv_1`.\n *\n * @param name The placeholder name that should be formatted\n * @returns Formatted placeholder name\n */\nfunction formatI18nPlaceholderName(name, useCamelCase = true) {\n const publicName = toPublicName(name);\n if (!useCamelCase) {\n return publicName;\n }\n const chunks = publicName.split('_');\n if (chunks.length === 1) {\n // if no \"_\" found - just lowercase the value\n return name.toLowerCase();\n }\n let postfix;\n // eject last element if it's a number\n if (/^\\d+$/.test(chunks[chunks.length - 1])) {\n postfix = chunks.pop();\n }\n let raw = chunks.shift().toLowerCase();\n if (chunks.length) {\n raw += chunks.map(c => c.charAt(0).toUpperCase() + c.slice(1).toLowerCase()).join('');\n }\n return postfix ? `${raw}_${postfix}` : raw;\n}\n/**\n * Generates a prefix for translation const name.\n *\n * @param extra Additional local prefix that should be injected into translation var name\n * @returns Complete translation const prefix\n */\nfunction getTranslationConstPrefix(extra) {\n return `${CLOSURE_TRANSLATION_VAR_PREFIX}${extra}`.toUpperCase();\n}\n/**\n * Generate AST to declare a variable. E.g. `var I18N_1;`.\n * @param variable the name of the variable to declare.\n */\nfunction declareI18nVariable(variable) {\n return new DeclareVarStmt(variable.name, undefined, INFERRED_TYPE, undefined, variable.sourceSpan);\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Checks whether an object key contains potentially unsafe chars, thus the key should be wrapped in\n * quotes. Note: we do not wrap all keys into quotes, as it may have impact on minification and may\n * bot work in some cases when object keys are mangled by minifier.\n *\n * TODO(FW-1136): this is a temporary solution, we need to come up with a better way of working with\n * inputs that contain potentially unsafe chars.\n */\nconst UNSAFE_OBJECT_KEY_NAME_REGEXP = /[-.]/;\n/** Name of the temporary to use during data binding */\nconst TEMPORARY_NAME = '_t';\n/** Name of the context parameter passed into a template function */\nconst CONTEXT_NAME = 'ctx';\n/** Name of the RenderFlag passed into a template function */\nconst RENDER_FLAGS = 'rf';\n/** The prefix reference variables */\nconst REFERENCE_PREFIX = '_r';\n/** The name of the implicit context reference */\nconst IMPLICIT_REFERENCE = '$implicit';\n/** Non bindable attribute name **/\nconst NON_BINDABLE_ATTR = 'ngNonBindable';\n/**\n * Creates an allocator for a temporary variable.\n *\n * A variable declaration is added to the statements the first time the allocator is invoked.\n */\nfunction temporaryAllocator(statements, name) {\n let temp = null;\n return () => {\n if (!temp) {\n statements.push(new DeclareVarStmt(TEMPORARY_NAME, undefined, DYNAMIC_TYPE));\n temp = variable(name);\n }\n return temp;\n };\n}\nfunction unsupported(feature) {\n if (this) {\n throw new Error(`Builder ${this.constructor.name} doesn't support ${feature} yet`);\n }\n throw new Error(`Feature ${feature} is not supported yet`);\n}\nfunction invalid$1(arg) {\n throw new Error(`Invalid state: Visitor ${this.constructor.name} doesn't handle ${arg.constructor.name}`);\n}\nfunction asLiteral(value) {\n if (Array.isArray(value)) {\n return literalArr(value.map(asLiteral));\n }\n return literal(value, INFERRED_TYPE);\n}\nfunction conditionallyCreateMapObjectLiteral(keys, keepDeclared) {\n if (Object.getOwnPropertyNames(keys).length > 0) {\n return mapToExpression(keys, keepDeclared);\n }\n return null;\n}\nfunction mapToExpression(map, keepDeclared) {\n return literalMap(Object.getOwnPropertyNames(map).map(key => {\n // canonical syntax: `dirProp: publicProp`\n // if there is no `:`, use dirProp = elProp\n const value = map[key];\n let declaredName;\n let publicName;\n let minifiedName;\n let needsDeclaredName;\n if (Array.isArray(value)) {\n [publicName, declaredName] = value;\n minifiedName = key;\n needsDeclaredName = publicName !== declaredName;\n }\n else {\n [declaredName, publicName] = splitAtColon(key, [key, value]);\n minifiedName = declaredName;\n // Only include the declared name if extracted from the key, i.e. the key contains a colon.\n // Otherwise the declared name should be omitted even if it is different from the public name,\n // as it may have already been minified.\n needsDeclaredName = publicName !== declaredName && key.includes(':');\n }\n return {\n key: minifiedName,\n // put quotes around keys that contain potentially unsafe characters\n quoted: UNSAFE_OBJECT_KEY_NAME_REGEXP.test(minifiedName),\n value: (keepDeclared && needsDeclaredName) ?\n literalArr([asLiteral(publicName), asLiteral(declaredName)]) :\n asLiteral(publicName)\n };\n }));\n}\n/**\n * Remove trailing null nodes as they are implied.\n */\nfunction trimTrailingNulls(parameters) {\n while (isNull(parameters[parameters.length - 1])) {\n parameters.pop();\n }\n return parameters;\n}\nfunction getQueryPredicate(query, constantPool) {\n if (Array.isArray(query.predicate)) {\n let predicate = [];\n query.predicate.forEach((selector) => {\n // Each item in predicates array may contain strings with comma-separated refs\n // (for ex. 'ref, ref1, ..., refN'), thus we extract individual refs and store them\n // as separate array entities\n const selectors = selector.split(',').map(token => literal(token.trim()));\n predicate.push(...selectors);\n });\n return constantPool.getConstLiteral(literalArr(predicate), true);\n }\n else {\n return query.predicate;\n }\n}\n/**\n * A representation for an object literal used during codegen of definition objects. The generic\n * type `T` allows to reference a documented type of the generated structure, such that the\n * property names that are set can be resolved to their documented declaration.\n */\nclass DefinitionMap {\n constructor() {\n this.values = [];\n }\n set(key, value) {\n if (value) {\n this.values.push({ key: key, value, quoted: false });\n }\n }\n toLiteralMap() {\n return literalMap(this.values);\n }\n}\n/**\n * Extract a map of properties to values for a given element or template node, which can be used\n * by the directive matching machinery.\n *\n * @param elOrTpl the element or template in question\n * @return an object set up for directive matching. For attributes on the element/template, this\n * object maps a property name to its (static) value. For any bindings, this map simply maps the\n * property name to an empty string.\n */\nfunction getAttrsForDirectiveMatching(elOrTpl) {\n const attributesMap = {};\n if (elOrTpl instanceof Template && elOrTpl.tagName !== 'ng-template') {\n elOrTpl.templateAttrs.forEach(a => attributesMap[a.name] = '');\n }\n else {\n elOrTpl.attributes.forEach(a => {\n if (!isI18nAttribute(a.name)) {\n attributesMap[a.name] = a.value;\n }\n });\n elOrTpl.inputs.forEach(i => {\n attributesMap[i.name] = '';\n });\n elOrTpl.outputs.forEach(o => {\n attributesMap[o.name] = '';\n });\n }\n return attributesMap;\n}\n/** Returns a call expression to a chained instruction, e.g. `property(params[0])(params[1])`. */\nfunction chainedInstruction(reference, calls, span) {\n let expression = importExpr(reference, null, span);\n if (calls.length > 0) {\n for (let i = 0; i < calls.length; i++) {\n expression = expression.callFn(calls[i], span);\n }\n }\n else {\n // Add a blank invocation, in case the `calls` array is empty.\n expression = expression.callFn([], span);\n }\n return expression;\n}\n/**\n * Gets the number of arguments expected to be passed to a generated instruction in the case of\n * interpolation instructions.\n * @param interpolation An interpolation ast\n */\nfunction getInterpolationArgsLength(interpolation) {\n const { expressions, strings } = interpolation;\n if (expressions.length === 1 && strings.length === 2 && strings[0] === '' && strings[1] === '') {\n // If the interpolation has one interpolated value, but the prefix and suffix are both empty\n // strings, we only pass one argument, to a special instruction like `propertyInterpolate` or\n // `textInterpolate`.\n return 1;\n }\n else {\n return expressions.length + strings.length;\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nvar R3FactoryDelegateType;\n(function (R3FactoryDelegateType) {\n R3FactoryDelegateType[R3FactoryDelegateType[\"Class\"] = 0] = \"Class\";\n R3FactoryDelegateType[R3FactoryDelegateType[\"Function\"] = 1] = \"Function\";\n R3FactoryDelegateType[R3FactoryDelegateType[\"Factory\"] = 2] = \"Factory\";\n})(R3FactoryDelegateType || (R3FactoryDelegateType = {}));\nvar R3FactoryTarget;\n(function (R3FactoryTarget) {\n R3FactoryTarget[R3FactoryTarget[\"Directive\"] = 0] = \"Directive\";\n R3FactoryTarget[R3FactoryTarget[\"Component\"] = 1] = \"Component\";\n R3FactoryTarget[R3FactoryTarget[\"Injectable\"] = 2] = \"Injectable\";\n R3FactoryTarget[R3FactoryTarget[\"Pipe\"] = 3] = \"Pipe\";\n R3FactoryTarget[R3FactoryTarget[\"NgModule\"] = 4] = \"NgModule\";\n})(R3FactoryTarget || (R3FactoryTarget = {}));\n/**\n * Resolved type of a dependency.\n *\n * Occasionally, dependencies will have special significance which is known statically. In that\n * case the `R3ResolvedDependencyType` informs the factory generator that a particular dependency\n * should be generated specially (usually by calling a special injection function instead of the\n * standard one).\n */\nvar R3ResolvedDependencyType;\n(function (R3ResolvedDependencyType) {\n /**\n * A normal token dependency.\n */\n R3ResolvedDependencyType[R3ResolvedDependencyType[\"Token\"] = 0] = \"Token\";\n /**\n * The dependency is for an attribute.\n *\n * The token expression is a string representing the attribute name.\n */\n R3ResolvedDependencyType[R3ResolvedDependencyType[\"Attribute\"] = 1] = \"Attribute\";\n /**\n * Injecting the `ChangeDetectorRef` token. Needs special handling when injected into a pipe.\n */\n R3ResolvedDependencyType[R3ResolvedDependencyType[\"ChangeDetectorRef\"] = 2] = \"ChangeDetectorRef\";\n /**\n * An invalid dependency (no token could be determined). An error should be thrown at runtime.\n */\n R3ResolvedDependencyType[R3ResolvedDependencyType[\"Invalid\"] = 3] = \"Invalid\";\n})(R3ResolvedDependencyType || (R3ResolvedDependencyType = {}));\n/**\n * Construct a factory function expression for the given `R3FactoryMetadata`.\n */\nfunction compileFactoryFunction(meta) {\n const t = variable('t');\n const statements = [];\n let ctorDepsType = NONE_TYPE;\n // The type to instantiate via constructor invocation. If there is no delegated factory, meaning\n // this type is always created by constructor invocation, then this is the type-to-create\n // parameter provided by the user (t) if specified, or the current type if not. If there is a\n // delegated factory (which is used to create the current type) then this is only the type-to-\n // create parameter (t).\n const typeForCtor = !isDelegatedMetadata(meta) ?\n new BinaryOperatorExpr(BinaryOperator.Or, t, meta.internalType) :\n t;\n let ctorExpr = null;\n if (meta.deps !== null) {\n // There is a constructor (either explicitly or implicitly defined).\n if (meta.deps !== 'invalid') {\n ctorExpr = new InstantiateExpr(typeForCtor, injectDependencies(meta.deps, meta.injectFn, meta.target === R3FactoryTarget.Pipe));\n ctorDepsType = createCtorDepsType(meta.deps);\n }\n }\n else {\n const baseFactory = variable(`ɵ${meta.name}_BaseFactory`);\n const getInheritedFactory = importExpr(Identifiers$1.getInheritedFactory);\n const baseFactoryStmt = baseFactory\n .set(getInheritedFactory.callFn([meta.internalType], /* sourceSpan */ undefined, /* pure */ true))\n .toDeclStmt(INFERRED_TYPE, [StmtModifier.Exported, StmtModifier.Final]);\n statements.push(baseFactoryStmt);\n // There is no constructor, use the base class' factory to construct typeForCtor.\n ctorExpr = baseFactory.callFn([typeForCtor]);\n }\n const ctorExprFinal = ctorExpr;\n const body = [];\n let retExpr = null;\n function makeConditionalFactory(nonCtorExpr) {\n const r = variable('r');\n body.push(r.set(NULL_EXPR).toDeclStmt());\n let ctorStmt = null;\n if (ctorExprFinal !== null) {\n ctorStmt = r.set(ctorExprFinal).toStmt();\n }\n else {\n ctorStmt = importExpr(Identifiers$1.invalidFactory).callFn([]).toStmt();\n }\n body.push(ifStmt(t, [ctorStmt], [r.set(nonCtorExpr).toStmt()]));\n return r;\n }\n if (isDelegatedMetadata(meta) && meta.delegateType === R3FactoryDelegateType.Factory) {\n const delegateFactory = variable(`ɵ${meta.name}_BaseFactory`);\n const getFactoryOf = importExpr(Identifiers$1.getFactoryOf);\n if (meta.delegate.isEquivalent(meta.internalType)) {\n throw new Error(`Illegal state: compiling factory that delegates to itself`);\n }\n const delegateFactoryStmt = delegateFactory.set(getFactoryOf.callFn([meta.delegate])).toDeclStmt(INFERRED_TYPE, [\n StmtModifier.Exported, StmtModifier.Final\n ]);\n statements.push(delegateFactoryStmt);\n retExpr = makeConditionalFactory(delegateFactory.callFn([]));\n }\n else if (isDelegatedMetadata(meta)) {\n // This type is created with a delegated factory. If a type parameter is not specified, call\n // the factory instead.\n const delegateArgs = injectDependencies(meta.delegateDeps, meta.injectFn, meta.target === R3FactoryTarget.Pipe);\n // Either call `new delegate(...)` or `delegate(...)` depending on meta.delegateType.\n const factoryExpr = new (meta.delegateType === R3FactoryDelegateType.Class ?\n InstantiateExpr :\n InvokeFunctionExpr)(meta.delegate, delegateArgs);\n retExpr = makeConditionalFactory(factoryExpr);\n }\n else if (isExpressionFactoryMetadata(meta)) {\n // TODO(alxhub): decide whether to lower the value here or in the caller\n retExpr = makeConditionalFactory(meta.expression);\n }\n else {\n retExpr = ctorExpr;\n }\n if (retExpr !== null) {\n body.push(new ReturnStatement(retExpr));\n }\n else {\n body.push(importExpr(Identifiers$1.invalidFactory).callFn([]).toStmt());\n }\n return {\n factory: fn([new FnParam('t', DYNAMIC_TYPE)], body, INFERRED_TYPE, undefined, `${meta.name}_Factory`),\n statements,\n type: expressionType(importExpr(Identifiers$1.FactoryDef, [typeWithParameters(meta.type.type, meta.typeArgumentCount), ctorDepsType]))\n };\n}\nfunction injectDependencies(deps, injectFn, isPipe) {\n return deps.map((dep, index) => compileInjectDependency(dep, injectFn, isPipe, index));\n}\nfunction compileInjectDependency(dep, injectFn, isPipe, index) {\n // Interpret the dependency according to its resolved type.\n switch (dep.resolved) {\n case R3ResolvedDependencyType.Token:\n case R3ResolvedDependencyType.ChangeDetectorRef:\n // Build up the injection flags according to the metadata.\n const flags = 0 /* Default */ | (dep.self ? 2 /* Self */ : 0) |\n (dep.skipSelf ? 4 /* SkipSelf */ : 0) | (dep.host ? 1 /* Host */ : 0) |\n (dep.optional ? 8 /* Optional */ : 0);\n // If this dependency is optional or otherwise has non-default flags, then additional\n // parameters describing how to inject the dependency must be passed to the inject function\n // that's being used.\n let flagsParam = (flags !== 0 /* Default */ || dep.optional) ? literal(flags) : null;\n // We have a separate instruction for injecting ChangeDetectorRef into a pipe.\n if (isPipe && dep.resolved === R3ResolvedDependencyType.ChangeDetectorRef) {\n return importExpr(Identifiers$1.injectPipeChangeDetectorRef).callFn(flagsParam ? [flagsParam] : []);\n }\n // Build up the arguments to the injectFn call.\n const injectArgs = [dep.token];\n if (flagsParam) {\n injectArgs.push(flagsParam);\n }\n return importExpr(injectFn).callFn(injectArgs);\n case R3ResolvedDependencyType.Attribute:\n // In the case of attributes, the attribute name in question is given as the token.\n return importExpr(Identifiers$1.injectAttribute).callFn([dep.token]);\n case R3ResolvedDependencyType.Invalid:\n return importExpr(Identifiers$1.invalidFactoryDep).callFn([literal(index)]);\n default:\n return unsupported(`Unknown R3ResolvedDependencyType: ${R3ResolvedDependencyType[dep.resolved]}`);\n }\n}\nfunction createCtorDepsType(deps) {\n let hasTypes = false;\n const attributeTypes = deps.map(dep => {\n const type = createCtorDepType(dep);\n if (type !== null) {\n hasTypes = true;\n return type;\n }\n else {\n return literal(null);\n }\n });\n if (hasTypes) {\n return expressionType(literalArr(attributeTypes));\n }\n else {\n return NONE_TYPE;\n }\n}\nfunction createCtorDepType(dep) {\n const entries = [];\n if (dep.resolved === R3ResolvedDependencyType.Attribute) {\n if (dep.attribute !== null) {\n entries.push({ key: 'attribute', value: dep.attribute, quoted: false });\n }\n }\n if (dep.optional) {\n entries.push({ key: 'optional', value: literal(true), quoted: false });\n }\n if (dep.host) {\n entries.push({ key: 'host', value: literal(true), quoted: false });\n }\n if (dep.self) {\n entries.push({ key: 'self', value: literal(true), quoted: false });\n }\n if (dep.skipSelf) {\n entries.push({ key: 'skipSelf', value: literal(true), quoted: false });\n }\n return entries.length > 0 ? literalMap(entries) : null;\n}\n/**\n * A helper function useful for extracting `R3DependencyMetadata` from a Render2\n * `CompileTypeMetadata` instance.\n */\nfunction dependenciesFromGlobalMetadata(type, outputCtx, reflector) {\n // Use the `CompileReflector` to look up references to some well-known Angular types. These will\n // be compared with the token to statically determine whether the token has significance to\n // Angular, and set the correct `R3ResolvedDependencyType` as a result.\n const injectorRef = reflector.resolveExternalReference(Identifiers.Injector);\n // Iterate through the type's DI dependencies and produce `R3DependencyMetadata` for each of them.\n const deps = [];\n for (let dependency of type.diDeps) {\n if (dependency.token) {\n const tokenRef = tokenReference(dependency.token);\n let resolved = dependency.isAttribute ?\n R3ResolvedDependencyType.Attribute :\n R3ResolvedDependencyType.Token;\n // In the case of most dependencies, the token will be a reference to a type. Sometimes,\n // however, it can be a string, in the case of older Angular code or @Attribute injection.\n const token = tokenRef instanceof StaticSymbol ? outputCtx.importExpr(tokenRef) : literal(tokenRef);\n // Construct the dependency.\n deps.push({\n token,\n attribute: null,\n resolved,\n host: !!dependency.isHost,\n optional: !!dependency.isOptional,\n self: !!dependency.isSelf,\n skipSelf: !!dependency.isSkipSelf,\n });\n }\n else {\n unsupported('dependency without a token');\n }\n }\n return deps;\n}\nfunction isDelegatedMetadata(meta) {\n return meta.delegateType !== undefined;\n}\nfunction isExpressionFactoryMetadata(meta) {\n return meta.expression !== undefined;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction compileInjectable(meta) {\n let result = null;\n const factoryMeta = {\n name: meta.name,\n type: meta.type,\n internalType: meta.internalType,\n typeArgumentCount: meta.typeArgumentCount,\n deps: [],\n injectFn: Identifiers.inject,\n target: R3FactoryTarget.Injectable,\n };\n if (meta.useClass !== undefined) {\n // meta.useClass has two modes of operation. Either deps are specified, in which case `new` is\n // used to instantiate the class with dependencies injected, or deps are not specified and\n // the factory of the class is used to instantiate it.\n //\n // A special case exists for useClass: Type where Type is the injectable type itself and no\n // deps are specified, in which case 'useClass' is effectively ignored.\n const useClassOnSelf = meta.useClass.isEquivalent(meta.internalType);\n let deps = undefined;\n if (meta.userDeps !== undefined) {\n deps = meta.userDeps;\n }\n if (deps !== undefined) {\n // factory: () => new meta.useClass(...deps)\n result = compileFactoryFunction(Object.assign(Object.assign({}, factoryMeta), { delegate: meta.useClass, delegateDeps: deps, delegateType: R3FactoryDelegateType.Class }));\n }\n else if (useClassOnSelf) {\n result = compileFactoryFunction(factoryMeta);\n }\n else {\n result = delegateToFactory(meta.type.value, meta.useClass);\n }\n }\n else if (meta.useFactory !== undefined) {\n if (meta.userDeps !== undefined) {\n result = compileFactoryFunction(Object.assign(Object.assign({}, factoryMeta), { delegate: meta.useFactory, delegateDeps: meta.userDeps || [], delegateType: R3FactoryDelegateType.Function }));\n }\n else {\n result = {\n statements: [],\n factory: fn([], [new ReturnStatement(meta.useFactory.callFn([]))])\n };\n }\n }\n else if (meta.useValue !== undefined) {\n // Note: it's safe to use `meta.useValue` instead of the `USE_VALUE in meta` check used for\n // client code because meta.useValue is an Expression which will be defined even if the actual\n // value is undefined.\n result = compileFactoryFunction(Object.assign(Object.assign({}, factoryMeta), { expression: meta.useValue }));\n }\n else if (meta.useExisting !== undefined) {\n // useExisting is an `inject` call on the existing token.\n result = compileFactoryFunction(Object.assign(Object.assign({}, factoryMeta), { expression: importExpr(Identifiers.inject).callFn([meta.useExisting]) }));\n }\n else {\n result = delegateToFactory(meta.type.value, meta.internalType);\n }\n const token = meta.internalType;\n const injectableProps = { token, factory: result.factory };\n // Only generate providedIn property if it has a non-null value\n if (meta.providedIn.value !== null) {\n injectableProps.providedIn = meta.providedIn;\n }\n const expression = importExpr(Identifiers.ɵɵdefineInjectable).callFn([mapToMapExpression(injectableProps)]);\n const type = new ExpressionType(importExpr(Identifiers.InjectableDef, [typeWithParameters(meta.type.type, meta.typeArgumentCount)]));\n return {\n expression,\n type,\n statements: result.statements,\n };\n}\nfunction delegateToFactory(type, internalType) {\n return {\n statements: [],\n // If types are the same, we can generate `factory: type.ɵfac`\n // If types are different, we have to generate a wrapper function to ensure\n // the internal type has been resolved (`factory: function(t) { return type.ɵfac(t); }`)\n factory: type.node === internalType.node ?\n internalType.prop('ɵfac') :\n fn([new FnParam('t', DYNAMIC_TYPE)], [new ReturnStatement(internalType.callMethod('ɵfac', [variable('t')]))])\n };\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction assertArrayOfStrings(identifier, value) {\n if (value == null) {\n return;\n }\n if (!Array.isArray(value)) {\n throw new Error(`Expected '${identifier}' to be an array of strings.`);\n }\n for (let i = 0; i < value.length; i += 1) {\n if (typeof value[i] !== 'string') {\n throw new Error(`Expected '${identifier}' to be an array of strings.`);\n }\n }\n}\nconst UNUSABLE_INTERPOLATION_REGEXPS = [\n /^\\s*$/,\n /[<>]/,\n /^[{}]$/,\n /&(#|[a-z])/i,\n /^\\/\\//,\n];\nfunction assertInterpolationSymbols(identifier, value) {\n if (value != null && !(Array.isArray(value) && value.length == 2)) {\n throw new Error(`Expected '${identifier}' to be an array, [start, end].`);\n }\n else if (value != null) {\n const start = value[0];\n const end = value[1];\n // Check for unusable interpolation symbols\n UNUSABLE_INTERPOLATION_REGEXPS.forEach(regexp => {\n if (regexp.test(start) || regexp.test(end)) {\n throw new Error(`['${start}', '${end}'] contains unusable interpolation symbol.`);\n }\n });\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass InterpolationConfig {\n constructor(start, end) {\n this.start = start;\n this.end = end;\n }\n static fromArray(markers) {\n if (!markers) {\n return DEFAULT_INTERPOLATION_CONFIG;\n }\n assertInterpolationSymbols('interpolation', markers);\n return new InterpolationConfig(markers[0], markers[1]);\n }\n}\nconst DEFAULT_INTERPOLATION_CONFIG = new InterpolationConfig('{{', '}}');\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * In TypeScript, tagged template functions expect a \"template object\", which is an array of\n * \"cooked\" strings plus a `raw` property that contains an array of \"raw\" strings. This is\n * typically constructed with a function called `__makeTemplateObject(cooked, raw)`, but it may not\n * be available in all environments.\n *\n * This is a JavaScript polyfill that uses __makeTemplateObject when it's available, but otherwise\n * creates an inline helper with the same functionality.\n *\n * In the inline function, if `Object.defineProperty` is available we use that to attach the `raw`\n * array.\n */\nconst makeTemplateObjectPolyfill = '(this&&this.__makeTemplateObject||function(e,t){return Object.defineProperty?Object.defineProperty(e,\"raw\",{value:t}):e.raw=t,e})';\nclass AbstractJsEmitterVisitor extends AbstractEmitterVisitor {\n constructor() {\n super(false);\n }\n visitDeclareClassStmt(stmt, ctx) {\n ctx.pushClass(stmt);\n this._visitClassConstructor(stmt, ctx);\n if (stmt.parent != null) {\n ctx.print(stmt, `${stmt.name}.prototype = Object.create(`);\n stmt.parent.visitExpression(this, ctx);\n ctx.println(stmt, `.prototype);`);\n }\n stmt.getters.forEach((getter) => this._visitClassGetter(stmt, getter, ctx));\n stmt.methods.forEach((method) => this._visitClassMethod(stmt, method, ctx));\n ctx.popClass();\n return null;\n }\n _visitClassConstructor(stmt, ctx) {\n ctx.print(stmt, `function ${stmt.name}(`);\n if (stmt.constructorMethod != null) {\n this._visitParams(stmt.constructorMethod.params, ctx);\n }\n ctx.println(stmt, `) {`);\n ctx.incIndent();\n if (stmt.constructorMethod != null) {\n if (stmt.constructorMethod.body.length > 0) {\n ctx.println(stmt, `var self = this;`);\n this.visitAllStatements(stmt.constructorMethod.body, ctx);\n }\n }\n ctx.decIndent();\n ctx.println(stmt, `}`);\n }\n _visitClassGetter(stmt, getter, ctx) {\n ctx.println(stmt, `Object.defineProperty(${stmt.name}.prototype, '${getter.name}', { get: function() {`);\n ctx.incIndent();\n if (getter.body.length > 0) {\n ctx.println(stmt, `var self = this;`);\n this.visitAllStatements(getter.body, ctx);\n }\n ctx.decIndent();\n ctx.println(stmt, `}});`);\n }\n _visitClassMethod(stmt, method, ctx) {\n ctx.print(stmt, `${stmt.name}.prototype.${method.name} = function(`);\n this._visitParams(method.params, ctx);\n ctx.println(stmt, `) {`);\n ctx.incIndent();\n if (method.body.length > 0) {\n ctx.println(stmt, `var self = this;`);\n this.visitAllStatements(method.body, ctx);\n }\n ctx.decIndent();\n ctx.println(stmt, `};`);\n }\n visitWrappedNodeExpr(ast, ctx) {\n throw new Error('Cannot emit a WrappedNodeExpr in Javascript.');\n }\n visitReadVarExpr(ast, ctx) {\n if (ast.builtin === BuiltinVar.This) {\n ctx.print(ast, 'self');\n }\n else if (ast.builtin === BuiltinVar.Super) {\n throw new Error(`'super' needs to be handled at a parent ast node, not at the variable level!`);\n }\n else {\n super.visitReadVarExpr(ast, ctx);\n }\n return null;\n }\n visitDeclareVarStmt(stmt, ctx) {\n ctx.print(stmt, `var ${stmt.name}`);\n if (stmt.value) {\n ctx.print(stmt, ' = ');\n stmt.value.visitExpression(this, ctx);\n }\n ctx.println(stmt, `;`);\n return null;\n }\n visitCastExpr(ast, ctx) {\n ast.value.visitExpression(this, ctx);\n return null;\n }\n visitInvokeFunctionExpr(expr, ctx) {\n const fnExpr = expr.fn;\n if (fnExpr instanceof ReadVarExpr && fnExpr.builtin === BuiltinVar.Super) {\n ctx.currentClass.parent.visitExpression(this, ctx);\n ctx.print(expr, `.call(this`);\n if (expr.args.length > 0) {\n ctx.print(expr, `, `);\n this.visitAllExpressions(expr.args, ctx, ',');\n }\n ctx.print(expr, `)`);\n }\n else {\n super.visitInvokeFunctionExpr(expr, ctx);\n }\n return null;\n }\n visitTaggedTemplateExpr(ast, ctx) {\n // The following convoluted piece of code is effectively the downlevelled equivalent of\n // ```\n // tag`...`\n // ```\n // which is effectively like:\n // ```\n // tag(__makeTemplateObject(cooked, raw), expression1, expression2, ...);\n // ```\n const elements = ast.template.elements;\n ast.tag.visitExpression(this, ctx);\n ctx.print(ast, `(${makeTemplateObjectPolyfill}(`);\n ctx.print(ast, `[${elements.map(part => escapeIdentifier(part.text, false)).join(', ')}], `);\n ctx.print(ast, `[${elements.map(part => escapeIdentifier(part.rawText, false)).join(', ')}])`);\n ast.template.expressions.forEach(expression => {\n ctx.print(ast, ', ');\n expression.visitExpression(this, ctx);\n });\n ctx.print(ast, ')');\n return null;\n }\n visitFunctionExpr(ast, ctx) {\n ctx.print(ast, `function${ast.name ? ' ' + ast.name : ''}(`);\n this._visitParams(ast.params, ctx);\n ctx.println(ast, `) {`);\n ctx.incIndent();\n this.visitAllStatements(ast.statements, ctx);\n ctx.decIndent();\n ctx.print(ast, `}`);\n return null;\n }\n visitDeclareFunctionStmt(stmt, ctx) {\n ctx.print(stmt, `function ${stmt.name}(`);\n this._visitParams(stmt.params, ctx);\n ctx.println(stmt, `) {`);\n ctx.incIndent();\n this.visitAllStatements(stmt.statements, ctx);\n ctx.decIndent();\n ctx.println(stmt, `}`);\n return null;\n }\n visitTryCatchStmt(stmt, ctx) {\n ctx.println(stmt, `try {`);\n ctx.incIndent();\n this.visitAllStatements(stmt.bodyStmts, ctx);\n ctx.decIndent();\n ctx.println(stmt, `} catch (${CATCH_ERROR_VAR$1.name}) {`);\n ctx.incIndent();\n const catchStmts = [CATCH_STACK_VAR$1.set(CATCH_ERROR_VAR$1.prop('stack')).toDeclStmt(null, [\n StmtModifier.Final\n ])].concat(stmt.catchStmts);\n this.visitAllStatements(catchStmts, ctx);\n ctx.decIndent();\n ctx.println(stmt, `}`);\n return null;\n }\n visitLocalizedString(ast, ctx) {\n // The following convoluted piece of code is effectively the downlevelled equivalent of\n // ```\n // $localize `...`\n // ```\n // which is effectively like:\n // ```\n // $localize(__makeTemplateObject(cooked, raw), expression1, expression2, ...);\n // ```\n ctx.print(ast, `$localize(${makeTemplateObjectPolyfill}(`);\n const parts = [ast.serializeI18nHead()];\n for (let i = 1; i < ast.messageParts.length; i++) {\n parts.push(ast.serializeI18nTemplatePart(i));\n }\n ctx.print(ast, `[${parts.map(part => escapeIdentifier(part.cooked, false)).join(', ')}], `);\n ctx.print(ast, `[${parts.map(part => escapeIdentifier(part.raw, false)).join(', ')}])`);\n ast.expressions.forEach(expression => {\n ctx.print(ast, ', ');\n expression.visitExpression(this, ctx);\n });\n ctx.print(ast, ')');\n return null;\n }\n _visitParams(params, ctx) {\n this.visitAllObjects(param => ctx.print(null, param.name), params, ctx, ',');\n }\n getBuiltinMethodName(method) {\n let name;\n switch (method) {\n case BuiltinMethod.ConcatArray:\n name = 'concat';\n break;\n case BuiltinMethod.SubscribeObservable:\n name = 'subscribe';\n break;\n case BuiltinMethod.Bind:\n name = 'bind';\n break;\n default:\n throw new Error(`Unknown builtin method: ${method}`);\n }\n return name;\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * The Trusted Types policy, or null if Trusted Types are not\n * enabled/supported, or undefined if the policy has not been created yet.\n */\nlet policy;\n/**\n * Returns the Trusted Types policy, or null if Trusted Types are not\n * enabled/supported. The first call to this function will create the policy.\n */\nfunction getPolicy() {\n if (policy === undefined) {\n policy = null;\n if (_global.trustedTypes) {\n try {\n policy =\n _global.trustedTypes.createPolicy('angular#unsafe-jit', {\n createScript: (s) => s,\n });\n }\n catch (_a) {\n // trustedTypes.createPolicy throws if called with a name that is\n // already registered, even in report-only mode. Until the API changes,\n // catch the error not to break the applications functionally. In such\n // cases, the code will fall back to using strings.\n }\n }\n }\n return policy;\n}\n/**\n * Unsafely promote a string to a TrustedScript, falling back to strings when\n * Trusted Types are not available.\n * @security In particular, it must be assured that the provided string will\n * never cause an XSS vulnerability if used in a context that will be\n * interpreted and executed as a script by a browser, e.g. when calling eval.\n */\nfunction trustedScriptFromString(script) {\n var _a;\n return ((_a = getPolicy()) === null || _a === void 0 ? void 0 : _a.createScript(script)) || script;\n}\n/**\n * Unsafely call the Function constructor with the given string arguments. It\n * is only available in development mode, and should be stripped out of\n * production code.\n * @security This is a security-sensitive function; any use of this function\n * must go through security review. In particular, it must be assured that it\n * is only called from the JIT compiler, as use in other code can lead to XSS\n * vulnerabilities.\n */\nfunction newTrustedFunctionForJIT(...args) {\n if (!_global.trustedTypes) {\n // In environments that don't support Trusted Types, fall back to the most\n // straightforward implementation:\n return new Function(...args);\n }\n // Chrome currently does not support passing TrustedScript to the Function\n // constructor. The following implements the workaround proposed on the page\n // below, where the Chromium bug is also referenced:\n // https://github.com/w3c/webappsec-trusted-types/wiki/Trusted-Types-for-function-constructor\n const fnArgs = args.slice(0, -1).join(',');\n const fnBody = args.pop().toString();\n const body = `(function anonymous(${fnArgs}\n) { ${fnBody}\n})`;\n // Using eval directly confuses the compiler and prevents this module from\n // being stripped out of JS binaries even if not used. The global['eval']\n // indirection fixes that.\n const fn = _global['eval'](trustedScriptFromString(body));\n // To completely mimic the behavior of calling \"new Function\", two more\n // things need to happen:\n // 1. Stringifying the resulting function should return its source code\n fn.toString = () => body;\n // 2. When calling the resulting function, `this` should refer to `global`\n return fn.bind(_global);\n // When Trusted Types support in Function constructors is widely available,\n // the implementation of this function can be simplified to:\n // return new Function(...args.map(a => trustedScriptFromString(a)));\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A helper class to manage the evaluation of JIT generated code.\n */\nclass JitEvaluator {\n /**\n *\n * @param sourceUrl The URL of the generated code.\n * @param statements An array of Angular statement AST nodes to be evaluated.\n * @param reflector A helper used when converting the statements to executable code.\n * @param createSourceMaps If true then create a source-map for the generated code and include it\n * inline as a source-map comment.\n * @returns A map of all the variables in the generated code.\n */\n evaluateStatements(sourceUrl, statements, reflector, createSourceMaps) {\n const converter = new JitEmitterVisitor(reflector);\n const ctx = EmitterVisitorContext.createRoot();\n // Ensure generated code is in strict mode\n if (statements.length > 0 && !isUseStrictStatement(statements[0])) {\n statements = [\n literal('use strict').toStmt(),\n ...statements,\n ];\n }\n converter.visitAllStatements(statements, ctx);\n converter.createReturnStmt(ctx);\n return this.evaluateCode(sourceUrl, ctx, converter.getArgs(), createSourceMaps);\n }\n /**\n * Evaluate a piece of JIT generated code.\n * @param sourceUrl The URL of this generated code.\n * @param ctx A context object that contains an AST of the code to be evaluated.\n * @param vars A map containing the names and values of variables that the evaluated code might\n * reference.\n * @param createSourceMap If true then create a source-map for the generated code and include it\n * inline as a source-map comment.\n * @returns The result of evaluating the code.\n */\n evaluateCode(sourceUrl, ctx, vars, createSourceMap) {\n let fnBody = `\"use strict\";${ctx.toSource()}\\n//# sourceURL=${sourceUrl}`;\n const fnArgNames = [];\n const fnArgValues = [];\n for (const argName in vars) {\n fnArgValues.push(vars[argName]);\n fnArgNames.push(argName);\n }\n if (createSourceMap) {\n // using `new Function(...)` generates a header, 1 line of no arguments, 2 lines otherwise\n // E.g. ```\n // function anonymous(a,b,c\n // /**/) { ... }```\n // We don't want to hard code this fact, so we auto detect it via an empty function first.\n const emptyFn = newTrustedFunctionForJIT(...fnArgNames.concat('return null;')).toString();\n const headerLines = emptyFn.slice(0, emptyFn.indexOf('return null;')).split('\\n').length - 1;\n fnBody += `\\n${ctx.toSourceMapGenerator(sourceUrl, headerLines).toJsComment()}`;\n }\n const fn = newTrustedFunctionForJIT(...fnArgNames.concat(fnBody));\n return this.executeFunction(fn, fnArgValues);\n }\n /**\n * Execute a JIT generated function by calling it.\n *\n * This method can be overridden in tests to capture the functions that are generated\n * by this `JitEvaluator` class.\n *\n * @param fn A function to execute.\n * @param args The arguments to pass to the function being executed.\n * @returns The return value of the executed function.\n */\n executeFunction(fn, args) {\n return fn(...args);\n }\n}\n/**\n * An Angular AST visitor that converts AST nodes into executable JavaScript code.\n */\nclass JitEmitterVisitor extends AbstractJsEmitterVisitor {\n constructor(reflector) {\n super();\n this.reflector = reflector;\n this._evalArgNames = [];\n this._evalArgValues = [];\n this._evalExportedVars = [];\n }\n createReturnStmt(ctx) {\n const stmt = new ReturnStatement(new LiteralMapExpr(this._evalExportedVars.map(resultVar => new LiteralMapEntry(resultVar, variable(resultVar), false))));\n stmt.visitStatement(this, ctx);\n }\n getArgs() {\n const result = {};\n for (let i = 0; i < this._evalArgNames.length; i++) {\n result[this._evalArgNames[i]] = this._evalArgValues[i];\n }\n return result;\n }\n visitExternalExpr(ast, ctx) {\n this._emitReferenceToExternal(ast, this.reflector.resolveExternalReference(ast.value), ctx);\n return null;\n }\n visitWrappedNodeExpr(ast, ctx) {\n this._emitReferenceToExternal(ast, ast.node, ctx);\n return null;\n }\n visitDeclareVarStmt(stmt, ctx) {\n if (stmt.hasModifier(StmtModifier.Exported)) {\n this._evalExportedVars.push(stmt.name);\n }\n return super.visitDeclareVarStmt(stmt, ctx);\n }\n visitDeclareFunctionStmt(stmt, ctx) {\n if (stmt.hasModifier(StmtModifier.Exported)) {\n this._evalExportedVars.push(stmt.name);\n }\n return super.visitDeclareFunctionStmt(stmt, ctx);\n }\n visitDeclareClassStmt(stmt, ctx) {\n if (stmt.hasModifier(StmtModifier.Exported)) {\n this._evalExportedVars.push(stmt.name);\n }\n return super.visitDeclareClassStmt(stmt, ctx);\n }\n _emitReferenceToExternal(ast, value, ctx) {\n let id = this._evalArgValues.indexOf(value);\n if (id === -1) {\n id = this._evalArgValues.length;\n this._evalArgValues.push(value);\n const name = identifierName({ reference: value }) || 'val';\n this._evalArgNames.push(`jit_${name}_${id}`);\n }\n ctx.print(ast, this._evalArgNames[id]);\n }\n}\nfunction isUseStrictStatement(statement) {\n return statement.isEquivalent(literal('use strict').toStmt());\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst $EOF = 0;\nconst $BSPACE = 8;\nconst $TAB = 9;\nconst $LF = 10;\nconst $VTAB = 11;\nconst $FF = 12;\nconst $CR = 13;\nconst $SPACE = 32;\nconst $BANG = 33;\nconst $DQ = 34;\nconst $HASH = 35;\nconst $$ = 36;\nconst $PERCENT = 37;\nconst $AMPERSAND = 38;\nconst $SQ = 39;\nconst $LPAREN = 40;\nconst $RPAREN = 41;\nconst $STAR = 42;\nconst $PLUS = 43;\nconst $COMMA = 44;\nconst $MINUS = 45;\nconst $PERIOD = 46;\nconst $SLASH = 47;\nconst $COLON = 58;\nconst $SEMICOLON = 59;\nconst $LT = 60;\nconst $EQ = 61;\nconst $GT = 62;\nconst $QUESTION = 63;\nconst $0 = 48;\nconst $7 = 55;\nconst $9 = 57;\nconst $A = 65;\nconst $E = 69;\nconst $F = 70;\nconst $X = 88;\nconst $Z = 90;\nconst $LBRACKET = 91;\nconst $BACKSLASH = 92;\nconst $RBRACKET = 93;\nconst $CARET = 94;\nconst $_ = 95;\nconst $a = 97;\nconst $b = 98;\nconst $e = 101;\nconst $f = 102;\nconst $n = 110;\nconst $r = 114;\nconst $t = 116;\nconst $u = 117;\nconst $v = 118;\nconst $x = 120;\nconst $z = 122;\nconst $LBRACE = 123;\nconst $BAR = 124;\nconst $RBRACE = 125;\nconst $NBSP = 160;\nconst $PIPE = 124;\nconst $TILDA = 126;\nconst $AT = 64;\nconst $BT = 96;\nfunction isWhitespace(code) {\n return (code >= $TAB && code <= $SPACE) || (code == $NBSP);\n}\nfunction isDigit(code) {\n return $0 <= code && code <= $9;\n}\nfunction isAsciiLetter(code) {\n return code >= $a && code <= $z || code >= $A && code <= $Z;\n}\nfunction isAsciiHexDigit(code) {\n return code >= $a && code <= $f || code >= $A && code <= $F || isDigit(code);\n}\nfunction isNewLine(code) {\n return code === $LF || code === $CR;\n}\nfunction isOctalDigit(code) {\n return $0 <= code && code <= $7;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass ParseLocation {\n constructor(file, offset, line, col) {\n this.file = file;\n this.offset = offset;\n this.line = line;\n this.col = col;\n }\n toString() {\n return this.offset != null ? `${this.file.url}@${this.line}:${this.col}` : this.file.url;\n }\n moveBy(delta) {\n const source = this.file.content;\n const len = source.length;\n let offset = this.offset;\n let line = this.line;\n let col = this.col;\n while (offset > 0 && delta < 0) {\n offset--;\n delta++;\n const ch = source.charCodeAt(offset);\n if (ch == $LF) {\n line--;\n const priorLine = source.substr(0, offset - 1).lastIndexOf(String.fromCharCode($LF));\n col = priorLine > 0 ? offset - priorLine : offset;\n }\n else {\n col--;\n }\n }\n while (offset < len && delta > 0) {\n const ch = source.charCodeAt(offset);\n offset++;\n delta--;\n if (ch == $LF) {\n line++;\n col = 0;\n }\n else {\n col++;\n }\n }\n return new ParseLocation(this.file, offset, line, col);\n }\n // Return the source around the location\n // Up to `maxChars` or `maxLines` on each side of the location\n getContext(maxChars, maxLines) {\n const content = this.file.content;\n let startOffset = this.offset;\n if (startOffset != null) {\n if (startOffset > content.length - 1) {\n startOffset = content.length - 1;\n }\n let endOffset = startOffset;\n let ctxChars = 0;\n let ctxLines = 0;\n while (ctxChars < maxChars && startOffset > 0) {\n startOffset--;\n ctxChars++;\n if (content[startOffset] == '\\n') {\n if (++ctxLines == maxLines) {\n break;\n }\n }\n }\n ctxChars = 0;\n ctxLines = 0;\n while (ctxChars < maxChars && endOffset < content.length - 1) {\n endOffset++;\n ctxChars++;\n if (content[endOffset] == '\\n') {\n if (++ctxLines == maxLines) {\n break;\n }\n }\n }\n return {\n before: content.substring(startOffset, this.offset),\n after: content.substring(this.offset, endOffset + 1),\n };\n }\n return null;\n }\n}\nclass ParseSourceFile {\n constructor(content, url) {\n this.content = content;\n this.url = url;\n }\n}\nclass ParseSourceSpan {\n /**\n * Create an object that holds information about spans of tokens/nodes captured during\n * lexing/parsing of text.\n *\n * @param start\n * The location of the start of the span (having skipped leading trivia).\n * Skipping leading trivia makes source-spans more \"user friendly\", since things like HTML\n * elements will appear to begin at the start of the opening tag, rather than at the start of any\n * leading trivia, which could include newlines.\n *\n * @param end\n * The location of the end of the span.\n *\n * @param fullStart\n * The start of the token without skipping the leading trivia.\n * This is used by tooling that splits tokens further, such as extracting Angular interpolations\n * from text tokens. Such tooling creates new source-spans relative to the original token's\n * source-span. If leading trivia characters have been skipped then the new source-spans may be\n * incorrectly offset.\n *\n * @param details\n * Additional information (such as identifier names) that should be associated with the span.\n */\n constructor(start, end, fullStart = start, details = null) {\n this.start = start;\n this.end = end;\n this.fullStart = fullStart;\n this.details = details;\n }\n toString() {\n return this.start.file.content.substring(this.start.offset, this.end.offset);\n }\n}\nvar ParseErrorLevel;\n(function (ParseErrorLevel) {\n ParseErrorLevel[ParseErrorLevel[\"WARNING\"] = 0] = \"WARNING\";\n ParseErrorLevel[ParseErrorLevel[\"ERROR\"] = 1] = \"ERROR\";\n})(ParseErrorLevel || (ParseErrorLevel = {}));\nclass ParseError {\n constructor(span, msg, level = ParseErrorLevel.ERROR) {\n this.span = span;\n this.msg = msg;\n this.level = level;\n }\n contextualMessage() {\n const ctx = this.span.start.getContext(100, 3);\n return ctx ? `${this.msg} (\"${ctx.before}[${ParseErrorLevel[this.level]} ->]${ctx.after}\")` :\n this.msg;\n }\n toString() {\n const details = this.span.details ? `, ${this.span.details}` : '';\n return `${this.contextualMessage()}: ${this.span.start}${details}`;\n }\n}\nfunction typeSourceSpan(kind, type) {\n const moduleUrl = identifierModuleUrl(type);\n const sourceFileName = moduleUrl != null ? `in ${kind} ${identifierName(type)} in ${moduleUrl}` :\n `in ${kind} ${identifierName(type)}`;\n const sourceFile = new ParseSourceFile('', sourceFileName);\n return new ParseSourceSpan(new ParseLocation(sourceFile, -1, -1, -1), new ParseLocation(sourceFile, -1, -1, -1));\n}\n/**\n * Generates Source Span object for a given R3 Type for JIT mode.\n *\n * @param kind Component or Directive.\n * @param typeName name of the Component or Directive.\n * @param sourceUrl reference to Component or Directive source.\n * @returns instance of ParseSourceSpan that represent a given Component or Directive.\n */\nfunction r3JitTypeSourceSpan(kind, typeName, sourceUrl) {\n const sourceFileName = `in ${kind} ${typeName} in ${sourceUrl}`;\n const sourceFile = new ParseSourceFile('', sourceFileName);\n return new ParseSourceSpan(new ParseLocation(sourceFile, -1, -1, -1), new ParseLocation(sourceFile, -1, -1, -1));\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Implementation of `CompileReflector` which resolves references to @angular/core\n * symbols at runtime, according to a consumer-provided mapping.\n *\n * Only supports `resolveExternalReference`, all other methods throw.\n */\nclass R3JitReflector {\n constructor(context) {\n this.context = context;\n }\n resolveExternalReference(ref) {\n // This reflector only handles @angular/core imports.\n if (ref.moduleName !== '@angular/core') {\n throw new Error(`Cannot resolve external reference to ${ref.moduleName}, only references to @angular/core are supported.`);\n }\n if (!this.context.hasOwnProperty(ref.name)) {\n throw new Error(`No value provided for @angular/core symbol '${ref.name}'.`);\n }\n return this.context[ref.name];\n }\n parameters(typeOrFunc) {\n throw new Error('Not implemented.');\n }\n annotations(typeOrFunc) {\n throw new Error('Not implemented.');\n }\n shallowAnnotations(typeOrFunc) {\n throw new Error('Not implemented.');\n }\n tryAnnotations(typeOrFunc) {\n throw new Error('Not implemented.');\n }\n propMetadata(typeOrFunc) {\n throw new Error('Not implemented.');\n }\n hasLifecycleHook(type, lcProperty) {\n throw new Error('Not implemented.');\n }\n guards(typeOrFunc) {\n throw new Error('Not implemented.');\n }\n componentModuleUrl(type, cmpMetadata) {\n throw new Error('Not implemented.');\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction mapEntry(key, value) {\n return { key, value, quoted: false };\n}\nfunction mapLiteral(obj, quoted = false) {\n return literalMap(Object.keys(obj).map(key => ({\n key,\n quoted,\n value: obj[key],\n })));\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Construct an `R3NgModuleDef` for the given `R3NgModuleMetadata`.\n */\nfunction compileNgModule(meta) {\n const { internalType, type: moduleType, bootstrap, declarations, imports, exports, schemas, containsForwardDecls, emitInline, id } = meta;\n const additionalStatements = [];\n const definitionMap = { type: internalType };\n // Only generate the keys in the metadata if the arrays have values.\n if (bootstrap.length) {\n definitionMap.bootstrap = refsToArray(bootstrap, containsForwardDecls);\n }\n // If requested to emit scope information inline, pass the declarations, imports and exports to\n // the `ɵɵdefineNgModule` call. The JIT compilation uses this.\n if (emitInline) {\n if (declarations.length) {\n definitionMap.declarations = refsToArray(declarations, containsForwardDecls);\n }\n if (imports.length) {\n definitionMap.imports = refsToArray(imports, containsForwardDecls);\n }\n if (exports.length) {\n definitionMap.exports = refsToArray(exports, containsForwardDecls);\n }\n }\n // If not emitting inline, the scope information is not passed into `ɵɵdefineNgModule` as it would\n // prevent tree-shaking of the declarations, imports and exports references.\n else {\n const setNgModuleScopeCall = generateSetNgModuleScopeCall(meta);\n if (setNgModuleScopeCall !== null) {\n additionalStatements.push(setNgModuleScopeCall);\n }\n }\n if (schemas && schemas.length) {\n definitionMap.schemas = literalArr(schemas.map(ref => ref.value));\n }\n if (id) {\n definitionMap.id = id;\n }\n const expression = importExpr(Identifiers$1.defineNgModule).callFn([mapToMapExpression(definitionMap)]);\n const type = new ExpressionType(importExpr(Identifiers$1.NgModuleDefWithMeta, [\n new ExpressionType(moduleType.type), tupleTypeOf(declarations), tupleTypeOf(imports),\n tupleTypeOf(exports)\n ]));\n return { expression, type, additionalStatements };\n}\n/**\n * Generates a function call to `ɵɵsetNgModuleScope` with all necessary information so that the\n * transitive module scope can be computed during runtime in JIT mode. This call is marked pure\n * such that the references to declarations, imports and exports may be elided causing these\n * symbols to become tree-shakeable.\n */\nfunction generateSetNgModuleScopeCall(meta) {\n const { adjacentType: moduleType, declarations, imports, exports, containsForwardDecls } = meta;\n const scopeMap = {};\n if (declarations.length) {\n scopeMap.declarations = refsToArray(declarations, containsForwardDecls);\n }\n if (imports.length) {\n scopeMap.imports = refsToArray(imports, containsForwardDecls);\n }\n if (exports.length) {\n scopeMap.exports = refsToArray(exports, containsForwardDecls);\n }\n if (Object.keys(scopeMap).length === 0) {\n return null;\n }\n // setNgModuleScope(...)\n const fnCall = new InvokeFunctionExpr(\n /* fn */ importExpr(Identifiers$1.setNgModuleScope), \n /* args */ [moduleType, mapToMapExpression(scopeMap)]);\n // (ngJitMode guard) && setNgModuleScope(...)\n const guardedCall = jitOnlyGuardedExpression(fnCall);\n // function() { (ngJitMode guard) && setNgModuleScope(...); }\n const iife = new FunctionExpr(\n /* params */ [], \n /* statements */ [guardedCall.toStmt()]);\n // (function() { (ngJitMode guard) && setNgModuleScope(...); })()\n const iifeCall = new InvokeFunctionExpr(\n /* fn */ iife, \n /* args */ []);\n return iifeCall.toStmt();\n}\nfunction compileInjector(meta) {\n const result = compileFactoryFunction({\n name: meta.name,\n type: meta.type,\n internalType: meta.internalType,\n typeArgumentCount: 0,\n deps: meta.deps,\n injectFn: Identifiers$1.inject,\n target: R3FactoryTarget.NgModule,\n });\n const definitionMap = {\n factory: result.factory,\n };\n if (meta.providers !== null) {\n definitionMap.providers = meta.providers;\n }\n if (meta.imports.length > 0) {\n definitionMap.imports = literalArr(meta.imports);\n }\n const expression = importExpr(Identifiers$1.defineInjector).callFn([mapToMapExpression(definitionMap)]);\n const type = new ExpressionType(importExpr(Identifiers$1.InjectorDef, [new ExpressionType(meta.type.type)]));\n return { expression, type, statements: result.statements };\n}\n// TODO(alxhub): integrate this with `compileNgModule`. Currently the two are separate operations.\nfunction compileNgModuleFromRender2(ctx, ngModule, injectableCompiler) {\n const className = identifierName(ngModule.type);\n const rawImports = ngModule.rawImports ? [ngModule.rawImports] : [];\n const rawExports = ngModule.rawExports ? [ngModule.rawExports] : [];\n const injectorDefArg = mapLiteral({\n 'factory': injectableCompiler.factoryFor({ type: ngModule.type, symbol: ngModule.type.reference }, ctx),\n 'providers': convertMetaToOutput(ngModule.rawProviders, ctx),\n 'imports': convertMetaToOutput([...rawImports, ...rawExports], ctx),\n });\n const injectorDef = importExpr(Identifiers$1.defineInjector).callFn([injectorDefArg]);\n ctx.statements.push(new ClassStmt(\n /* name */ className, \n /* parent */ null, \n /* fields */ [new ClassField(\n /* name */ 'ɵinj', \n /* type */ INFERRED_TYPE, \n /* modifiers */ [StmtModifier.Static], \n /* initializer */ injectorDef)], \n /* getters */ [], \n /* constructorMethod */ new ClassMethod(null, [], []), \n /* methods */ []));\n}\nfunction accessExportScope(module) {\n const selectorScope = new ReadPropExpr(module, 'ɵmod');\n return new ReadPropExpr(selectorScope, 'exported');\n}\nfunction tupleTypeOf(exp) {\n const types = exp.map(ref => typeofExpr(ref.type));\n return exp.length > 0 ? expressionType(literalArr(types)) : NONE_TYPE;\n}\nfunction refsToArray(refs, shouldForwardDeclare) {\n const values = literalArr(refs.map(ref => ref.value));\n return shouldForwardDeclare ? fn([], [new ReturnStatement(values)]) : values;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction compilePipeFromMetadata(metadata) {\n const definitionMapValues = [];\n // e.g. `name: 'myPipe'`\n definitionMapValues.push({ key: 'name', value: literal(metadata.pipeName), quoted: false });\n // e.g. `type: MyPipe`\n definitionMapValues.push({ key: 'type', value: metadata.type.value, quoted: false });\n // e.g. `pure: true`\n definitionMapValues.push({ key: 'pure', value: literal(metadata.pure), quoted: false });\n const expression = importExpr(Identifiers$1.definePipe).callFn([literalMap(definitionMapValues)]);\n const type = new ExpressionType(importExpr(Identifiers$1.PipeDefWithMeta, [\n typeWithParameters(metadata.type.type, metadata.typeArgumentCount),\n new ExpressionType(new LiteralExpr(metadata.pipeName)),\n ]));\n return { expression, type };\n}\n/**\n * Write a pipe definition to the output context.\n */\nfunction compilePipeFromRender2(outputCtx, pipe, reflector) {\n const name = identifierName(pipe.type);\n if (!name) {\n return error(`Cannot resolve the name of ${pipe.type}`);\n }\n const type = outputCtx.importExpr(pipe.type.reference);\n const metadata = {\n name,\n type: wrapReference(type),\n internalType: type,\n pipeName: pipe.name,\n typeArgumentCount: 0,\n deps: dependenciesFromGlobalMetadata(pipe.type, outputCtx, reflector),\n pure: pipe.pure,\n };\n const res = compilePipeFromMetadata(metadata);\n const factoryRes = compileFactoryFunction(Object.assign(Object.assign({}, metadata), { injectFn: Identifiers$1.directiveInject, target: R3FactoryTarget.Pipe }));\n const definitionField = outputCtx.constantPool.propertyNameOf(3 /* Pipe */);\n const ngFactoryDefStatement = new ClassStmt(\n /* name */ name, \n /* parent */ null, \n /* fields */\n [new ClassField(\n /* name */ 'ɵfac', \n /* type */ INFERRED_TYPE, \n /* modifiers */ [StmtModifier.Static], \n /* initializer */ factoryRes.factory)], \n /* getters */ [], \n /* constructorMethod */ new ClassMethod(null, [], []), \n /* methods */ []);\n const pipeDefStatement = new ClassStmt(\n /* name */ name, \n /* parent */ null, \n /* fields */ [new ClassField(\n /* name */ definitionField, \n /* type */ INFERRED_TYPE, \n /* modifiers */ [StmtModifier.Static], \n /* initializer */ res.expression)], \n /* getters */ [], \n /* constructorMethod */ new ClassMethod(null, [], []), \n /* methods */ []);\n outputCtx.statements.push(ngFactoryDefStatement, pipeDefStatement);\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass ParserError {\n constructor(message, input, errLocation, ctxLocation) {\n this.input = input;\n this.errLocation = errLocation;\n this.ctxLocation = ctxLocation;\n this.message = `Parser Error: ${message} ${errLocation} [${input}] in ${ctxLocation}`;\n }\n}\nclass ParseSpan {\n constructor(start, end) {\n this.start = start;\n this.end = end;\n }\n toAbsolute(absoluteOffset) {\n return new AbsoluteSourceSpan(absoluteOffset + this.start, absoluteOffset + this.end);\n }\n}\nclass AST {\n constructor(span, \n /**\n * Absolute location of the expression AST in a source code file.\n */\n sourceSpan) {\n this.span = span;\n this.sourceSpan = sourceSpan;\n }\n visit(visitor, context = null) {\n return null;\n }\n toString() {\n return 'AST';\n }\n}\nclass ASTWithName extends AST {\n constructor(span, sourceSpan, nameSpan) {\n super(span, sourceSpan);\n this.nameSpan = nameSpan;\n }\n}\n/**\n * Represents a quoted expression of the form:\n *\n * quote = prefix `:` uninterpretedExpression\n * prefix = identifier\n * uninterpretedExpression = arbitrary string\n *\n * A quoted expression is meant to be pre-processed by an AST transformer that\n * converts it into another AST that no longer contains quoted expressions.\n * It is meant to allow third-party developers to extend Angular template\n * expression language. The `uninterpretedExpression` part of the quote is\n * therefore not interpreted by the Angular's own expression parser.\n */\nclass Quote extends AST {\n constructor(span, sourceSpan, prefix, uninterpretedExpression, location) {\n super(span, sourceSpan);\n this.prefix = prefix;\n this.uninterpretedExpression = uninterpretedExpression;\n this.location = location;\n }\n visit(visitor, context = null) {\n return visitor.visitQuote(this, context);\n }\n toString() {\n return 'Quote';\n }\n}\nclass EmptyExpr extends AST {\n visit(visitor, context = null) {\n // do nothing\n }\n}\nclass ImplicitReceiver extends AST {\n visit(visitor, context = null) {\n return visitor.visitImplicitReceiver(this, context);\n }\n}\n/**\n * Receiver when something is accessed through `this` (e.g. `this.foo`). Note that this class\n * inherits from `ImplicitReceiver`, because accessing something through `this` is treated the\n * same as accessing it implicitly inside of an Angular template (e.g. `[attr.title]=\"this.title\"`\n * is the same as `[attr.title]=\"title\"`.). Inheriting allows for the `this` accesses to be treated\n * the same as implicit ones, except for a couple of exceptions like `$event` and `$any`.\n * TODO: we should find a way for this class not to extend from `ImplicitReceiver` in the future.\n */\nclass ThisReceiver extends ImplicitReceiver {\n visit(visitor, context = null) {\n var _a;\n return (_a = visitor.visitThisReceiver) === null || _a === void 0 ? void 0 : _a.call(visitor, this, context);\n }\n}\n/**\n * Multiple expressions separated by a semicolon.\n */\nclass Chain extends AST {\n constructor(span, sourceSpan, expressions) {\n super(span, sourceSpan);\n this.expressions = expressions;\n }\n visit(visitor, context = null) {\n return visitor.visitChain(this, context);\n }\n}\nclass Conditional extends AST {\n constructor(span, sourceSpan, condition, trueExp, falseExp) {\n super(span, sourceSpan);\n this.condition = condition;\n this.trueExp = trueExp;\n this.falseExp = falseExp;\n }\n visit(visitor, context = null) {\n return visitor.visitConditional(this, context);\n }\n}\nclass PropertyRead extends ASTWithName {\n constructor(span, sourceSpan, nameSpan, receiver, name) {\n super(span, sourceSpan, nameSpan);\n this.receiver = receiver;\n this.name = name;\n }\n visit(visitor, context = null) {\n return visitor.visitPropertyRead(this, context);\n }\n}\nclass PropertyWrite extends ASTWithName {\n constructor(span, sourceSpan, nameSpan, receiver, name, value) {\n super(span, sourceSpan, nameSpan);\n this.receiver = receiver;\n this.name = name;\n this.value = value;\n }\n visit(visitor, context = null) {\n return visitor.visitPropertyWrite(this, context);\n }\n}\nclass SafePropertyRead extends ASTWithName {\n constructor(span, sourceSpan, nameSpan, receiver, name) {\n super(span, sourceSpan, nameSpan);\n this.receiver = receiver;\n this.name = name;\n }\n visit(visitor, context = null) {\n return visitor.visitSafePropertyRead(this, context);\n }\n}\nclass KeyedRead extends AST {\n constructor(span, sourceSpan, obj, key) {\n super(span, sourceSpan);\n this.obj = obj;\n this.key = key;\n }\n visit(visitor, context = null) {\n return visitor.visitKeyedRead(this, context);\n }\n}\nclass KeyedWrite extends AST {\n constructor(span, sourceSpan, obj, key, value) {\n super(span, sourceSpan);\n this.obj = obj;\n this.key = key;\n this.value = value;\n }\n visit(visitor, context = null) {\n return visitor.visitKeyedWrite(this, context);\n }\n}\nclass BindingPipe extends ASTWithName {\n constructor(span, sourceSpan, exp, name, args, nameSpan) {\n super(span, sourceSpan, nameSpan);\n this.exp = exp;\n this.name = name;\n this.args = args;\n }\n visit(visitor, context = null) {\n return visitor.visitPipe(this, context);\n }\n}\nclass LiteralPrimitive extends AST {\n constructor(span, sourceSpan, value) {\n super(span, sourceSpan);\n this.value = value;\n }\n visit(visitor, context = null) {\n return visitor.visitLiteralPrimitive(this, context);\n }\n}\nclass LiteralArray extends AST {\n constructor(span, sourceSpan, expressions) {\n super(span, sourceSpan);\n this.expressions = expressions;\n }\n visit(visitor, context = null) {\n return visitor.visitLiteralArray(this, context);\n }\n}\nclass LiteralMap extends AST {\n constructor(span, sourceSpan, keys, values) {\n super(span, sourceSpan);\n this.keys = keys;\n this.values = values;\n }\n visit(visitor, context = null) {\n return visitor.visitLiteralMap(this, context);\n }\n}\nclass Interpolation extends AST {\n constructor(span, sourceSpan, strings, expressions) {\n super(span, sourceSpan);\n this.strings = strings;\n this.expressions = expressions;\n }\n visit(visitor, context = null) {\n return visitor.visitInterpolation(this, context);\n }\n}\nclass Binary extends AST {\n constructor(span, sourceSpan, operation, left, right) {\n super(span, sourceSpan);\n this.operation = operation;\n this.left = left;\n this.right = right;\n }\n visit(visitor, context = null) {\n return visitor.visitBinary(this, context);\n }\n}\n/**\n * For backwards compatibility reasons, `Unary` inherits from `Binary` and mimics the binary AST\n * node that was originally used. This inheritance relation can be deleted in some future major,\n * after consumers have been given a chance to fully support Unary.\n */\nclass Unary extends Binary {\n /**\n * During the deprecation period this constructor is private, to avoid consumers from creating\n * a `Unary` with the fallback properties for `Binary`.\n */\n constructor(span, sourceSpan, operator, expr, binaryOp, binaryLeft, binaryRight) {\n super(span, sourceSpan, binaryOp, binaryLeft, binaryRight);\n this.operator = operator;\n this.expr = expr;\n }\n /**\n * Creates a unary minus expression \"-x\", represented as `Binary` using \"0 - x\".\n */\n static createMinus(span, sourceSpan, expr) {\n return new Unary(span, sourceSpan, '-', expr, '-', new LiteralPrimitive(span, sourceSpan, 0), expr);\n }\n /**\n * Creates a unary plus expression \"+x\", represented as `Binary` using \"x - 0\".\n */\n static createPlus(span, sourceSpan, expr) {\n return new Unary(span, sourceSpan, '+', expr, '-', expr, new LiteralPrimitive(span, sourceSpan, 0));\n }\n visit(visitor, context = null) {\n if (visitor.visitUnary !== undefined) {\n return visitor.visitUnary(this, context);\n }\n return visitor.visitBinary(this, context);\n }\n}\nclass PrefixNot extends AST {\n constructor(span, sourceSpan, expression) {\n super(span, sourceSpan);\n this.expression = expression;\n }\n visit(visitor, context = null) {\n return visitor.visitPrefixNot(this, context);\n }\n}\nclass NonNullAssert extends AST {\n constructor(span, sourceSpan, expression) {\n super(span, sourceSpan);\n this.expression = expression;\n }\n visit(visitor, context = null) {\n return visitor.visitNonNullAssert(this, context);\n }\n}\nclass MethodCall extends ASTWithName {\n constructor(span, sourceSpan, nameSpan, receiver, name, args) {\n super(span, sourceSpan, nameSpan);\n this.receiver = receiver;\n this.name = name;\n this.args = args;\n }\n visit(visitor, context = null) {\n return visitor.visitMethodCall(this, context);\n }\n}\nclass SafeMethodCall extends ASTWithName {\n constructor(span, sourceSpan, nameSpan, receiver, name, args) {\n super(span, sourceSpan, nameSpan);\n this.receiver = receiver;\n this.name = name;\n this.args = args;\n }\n visit(visitor, context = null) {\n return visitor.visitSafeMethodCall(this, context);\n }\n}\nclass FunctionCall extends AST {\n constructor(span, sourceSpan, target, args) {\n super(span, sourceSpan);\n this.target = target;\n this.args = args;\n }\n visit(visitor, context = null) {\n return visitor.visitFunctionCall(this, context);\n }\n}\n/**\n * Records the absolute position of a text span in a source file, where `start` and `end` are the\n * starting and ending byte offsets, respectively, of the text span in a source file.\n */\nclass AbsoluteSourceSpan {\n constructor(start, end) {\n this.start = start;\n this.end = end;\n }\n}\nclass ASTWithSource extends AST {\n constructor(ast, source, location, absoluteOffset, errors) {\n super(new ParseSpan(0, source === null ? 0 : source.length), new AbsoluteSourceSpan(absoluteOffset, source === null ? absoluteOffset : absoluteOffset + source.length));\n this.ast = ast;\n this.source = source;\n this.location = location;\n this.errors = errors;\n }\n visit(visitor, context = null) {\n if (visitor.visitASTWithSource) {\n return visitor.visitASTWithSource(this, context);\n }\n return this.ast.visit(visitor, context);\n }\n toString() {\n return `${this.source} in ${this.location}`;\n }\n}\nclass VariableBinding {\n /**\n * @param sourceSpan entire span of the binding.\n * @param key name of the LHS along with its span.\n * @param value optional value for the RHS along with its span.\n */\n constructor(sourceSpan, key, value) {\n this.sourceSpan = sourceSpan;\n this.key = key;\n this.value = value;\n }\n}\nclass ExpressionBinding {\n /**\n * @param sourceSpan entire span of the binding.\n * @param key binding name, like ngForOf, ngForTrackBy, ngIf, along with its\n * span. Note that the length of the span may not be the same as\n * `key.source.length`. For example,\n * 1. key.source = ngFor, key.span is for \"ngFor\"\n * 2. key.source = ngForOf, key.span is for \"of\"\n * 3. key.source = ngForTrackBy, key.span is for \"trackBy\"\n * @param value optional expression for the RHS.\n */\n constructor(sourceSpan, key, value) {\n this.sourceSpan = sourceSpan;\n this.key = key;\n this.value = value;\n }\n}\nclass RecursiveAstVisitor$1 {\n visit(ast, context) {\n // The default implementation just visits every node.\n // Classes that extend RecursiveAstVisitor should override this function\n // to selectively visit the specified node.\n ast.visit(this, context);\n }\n visitUnary(ast, context) {\n this.visit(ast.expr, context);\n }\n visitBinary(ast, context) {\n this.visit(ast.left, context);\n this.visit(ast.right, context);\n }\n visitChain(ast, context) {\n this.visitAll(ast.expressions, context);\n }\n visitConditional(ast, context) {\n this.visit(ast.condition, context);\n this.visit(ast.trueExp, context);\n this.visit(ast.falseExp, context);\n }\n visitPipe(ast, context) {\n this.visit(ast.exp, context);\n this.visitAll(ast.args, context);\n }\n visitFunctionCall(ast, context) {\n if (ast.target) {\n this.visit(ast.target, context);\n }\n this.visitAll(ast.args, context);\n }\n visitImplicitReceiver(ast, context) { }\n visitThisReceiver(ast, context) { }\n visitInterpolation(ast, context) {\n this.visitAll(ast.expressions, context);\n }\n visitKeyedRead(ast, context) {\n this.visit(ast.obj, context);\n this.visit(ast.key, context);\n }\n visitKeyedWrite(ast, context) {\n this.visit(ast.obj, context);\n this.visit(ast.key, context);\n this.visit(ast.value, context);\n }\n visitLiteralArray(ast, context) {\n this.visitAll(ast.expressions, context);\n }\n visitLiteralMap(ast, context) {\n this.visitAll(ast.values, context);\n }\n visitLiteralPrimitive(ast, context) { }\n visitMethodCall(ast, context) {\n this.visit(ast.receiver, context);\n this.visitAll(ast.args, context);\n }\n visitPrefixNot(ast, context) {\n this.visit(ast.expression, context);\n }\n visitNonNullAssert(ast, context) {\n this.visit(ast.expression, context);\n }\n visitPropertyRead(ast, context) {\n this.visit(ast.receiver, context);\n }\n visitPropertyWrite(ast, context) {\n this.visit(ast.receiver, context);\n this.visit(ast.value, context);\n }\n visitSafePropertyRead(ast, context) {\n this.visit(ast.receiver, context);\n }\n visitSafeMethodCall(ast, context) {\n this.visit(ast.receiver, context);\n this.visitAll(ast.args, context);\n }\n visitQuote(ast, context) { }\n // This is not part of the AstVisitor interface, just a helper method\n visitAll(asts, context) {\n for (const ast of asts) {\n this.visit(ast, context);\n }\n }\n}\nclass AstTransformer$1 {\n visitImplicitReceiver(ast, context) {\n return ast;\n }\n visitThisReceiver(ast, context) {\n return ast;\n }\n visitInterpolation(ast, context) {\n return new Interpolation(ast.span, ast.sourceSpan, ast.strings, this.visitAll(ast.expressions));\n }\n visitLiteralPrimitive(ast, context) {\n return new LiteralPrimitive(ast.span, ast.sourceSpan, ast.value);\n }\n visitPropertyRead(ast, context) {\n return new PropertyRead(ast.span, ast.sourceSpan, ast.nameSpan, ast.receiver.visit(this), ast.name);\n }\n visitPropertyWrite(ast, context) {\n return new PropertyWrite(ast.span, ast.sourceSpan, ast.nameSpan, ast.receiver.visit(this), ast.name, ast.value.visit(this));\n }\n visitSafePropertyRead(ast, context) {\n return new SafePropertyRead(ast.span, ast.sourceSpan, ast.nameSpan, ast.receiver.visit(this), ast.name);\n }\n visitMethodCall(ast, context) {\n return new MethodCall(ast.span, ast.sourceSpan, ast.nameSpan, ast.receiver.visit(this), ast.name, this.visitAll(ast.args));\n }\n visitSafeMethodCall(ast, context) {\n return new SafeMethodCall(ast.span, ast.sourceSpan, ast.nameSpan, ast.receiver.visit(this), ast.name, this.visitAll(ast.args));\n }\n visitFunctionCall(ast, context) {\n return new FunctionCall(ast.span, ast.sourceSpan, ast.target.visit(this), this.visitAll(ast.args));\n }\n visitLiteralArray(ast, context) {\n return new LiteralArray(ast.span, ast.sourceSpan, this.visitAll(ast.expressions));\n }\n visitLiteralMap(ast, context) {\n return new LiteralMap(ast.span, ast.sourceSpan, ast.keys, this.visitAll(ast.values));\n }\n visitUnary(ast, context) {\n switch (ast.operator) {\n case '+':\n return Unary.createPlus(ast.span, ast.sourceSpan, ast.expr.visit(this));\n case '-':\n return Unary.createMinus(ast.span, ast.sourceSpan, ast.expr.visit(this));\n default:\n throw new Error(`Unknown unary operator ${ast.operator}`);\n }\n }\n visitBinary(ast, context) {\n return new Binary(ast.span, ast.sourceSpan, ast.operation, ast.left.visit(this), ast.right.visit(this));\n }\n visitPrefixNot(ast, context) {\n return new PrefixNot(ast.span, ast.sourceSpan, ast.expression.visit(this));\n }\n visitNonNullAssert(ast, context) {\n return new NonNullAssert(ast.span, ast.sourceSpan, ast.expression.visit(this));\n }\n visitConditional(ast, context) {\n return new Conditional(ast.span, ast.sourceSpan, ast.condition.visit(this), ast.trueExp.visit(this), ast.falseExp.visit(this));\n }\n visitPipe(ast, context) {\n return new BindingPipe(ast.span, ast.sourceSpan, ast.exp.visit(this), ast.name, this.visitAll(ast.args), ast.nameSpan);\n }\n visitKeyedRead(ast, context) {\n return new KeyedRead(ast.span, ast.sourceSpan, ast.obj.visit(this), ast.key.visit(this));\n }\n visitKeyedWrite(ast, context) {\n return new KeyedWrite(ast.span, ast.sourceSpan, ast.obj.visit(this), ast.key.visit(this), ast.value.visit(this));\n }\n visitAll(asts) {\n const res = [];\n for (let i = 0; i < asts.length; ++i) {\n res[i] = asts[i].visit(this);\n }\n return res;\n }\n visitChain(ast, context) {\n return new Chain(ast.span, ast.sourceSpan, this.visitAll(ast.expressions));\n }\n visitQuote(ast, context) {\n return new Quote(ast.span, ast.sourceSpan, ast.prefix, ast.uninterpretedExpression, ast.location);\n }\n}\n// A transformer that only creates new nodes if the transformer makes a change or\n// a change is made a child node.\nclass AstMemoryEfficientTransformer {\n visitImplicitReceiver(ast, context) {\n return ast;\n }\n visitThisReceiver(ast, context) {\n return ast;\n }\n visitInterpolation(ast, context) {\n const expressions = this.visitAll(ast.expressions);\n if (expressions !== ast.expressions)\n return new Interpolation(ast.span, ast.sourceSpan, ast.strings, expressions);\n return ast;\n }\n visitLiteralPrimitive(ast, context) {\n return ast;\n }\n visitPropertyRead(ast, context) {\n const receiver = ast.receiver.visit(this);\n if (receiver !== ast.receiver) {\n return new PropertyRead(ast.span, ast.sourceSpan, ast.nameSpan, receiver, ast.name);\n }\n return ast;\n }\n visitPropertyWrite(ast, context) {\n const receiver = ast.receiver.visit(this);\n const value = ast.value.visit(this);\n if (receiver !== ast.receiver || value !== ast.value) {\n return new PropertyWrite(ast.span, ast.sourceSpan, ast.nameSpan, receiver, ast.name, value);\n }\n return ast;\n }\n visitSafePropertyRead(ast, context) {\n const receiver = ast.receiver.visit(this);\n if (receiver !== ast.receiver) {\n return new SafePropertyRead(ast.span, ast.sourceSpan, ast.nameSpan, receiver, ast.name);\n }\n return ast;\n }\n visitMethodCall(ast, context) {\n const receiver = ast.receiver.visit(this);\n const args = this.visitAll(ast.args);\n if (receiver !== ast.receiver || args !== ast.args) {\n return new MethodCall(ast.span, ast.sourceSpan, ast.nameSpan, receiver, ast.name, args);\n }\n return ast;\n }\n visitSafeMethodCall(ast, context) {\n const receiver = ast.receiver.visit(this);\n const args = this.visitAll(ast.args);\n if (receiver !== ast.receiver || args !== ast.args) {\n return new SafeMethodCall(ast.span, ast.sourceSpan, ast.nameSpan, receiver, ast.name, args);\n }\n return ast;\n }\n visitFunctionCall(ast, context) {\n const target = ast.target && ast.target.visit(this);\n const args = this.visitAll(ast.args);\n if (target !== ast.target || args !== ast.args) {\n return new FunctionCall(ast.span, ast.sourceSpan, target, args);\n }\n return ast;\n }\n visitLiteralArray(ast, context) {\n const expressions = this.visitAll(ast.expressions);\n if (expressions !== ast.expressions) {\n return new LiteralArray(ast.span, ast.sourceSpan, expressions);\n }\n return ast;\n }\n visitLiteralMap(ast, context) {\n const values = this.visitAll(ast.values);\n if (values !== ast.values) {\n return new LiteralMap(ast.span, ast.sourceSpan, ast.keys, values);\n }\n return ast;\n }\n visitUnary(ast, context) {\n const expr = ast.expr.visit(this);\n if (expr !== ast.expr) {\n switch (ast.operator) {\n case '+':\n return Unary.createPlus(ast.span, ast.sourceSpan, expr);\n case '-':\n return Unary.createMinus(ast.span, ast.sourceSpan, expr);\n default:\n throw new Error(`Unknown unary operator ${ast.operator}`);\n }\n }\n return ast;\n }\n visitBinary(ast, context) {\n const left = ast.left.visit(this);\n const right = ast.right.visit(this);\n if (left !== ast.left || right !== ast.right) {\n return new Binary(ast.span, ast.sourceSpan, ast.operation, left, right);\n }\n return ast;\n }\n visitPrefixNot(ast, context) {\n const expression = ast.expression.visit(this);\n if (expression !== ast.expression) {\n return new PrefixNot(ast.span, ast.sourceSpan, expression);\n }\n return ast;\n }\n visitNonNullAssert(ast, context) {\n const expression = ast.expression.visit(this);\n if (expression !== ast.expression) {\n return new NonNullAssert(ast.span, ast.sourceSpan, expression);\n }\n return ast;\n }\n visitConditional(ast, context) {\n const condition = ast.condition.visit(this);\n const trueExp = ast.trueExp.visit(this);\n const falseExp = ast.falseExp.visit(this);\n if (condition !== ast.condition || trueExp !== ast.trueExp || falseExp !== ast.falseExp) {\n return new Conditional(ast.span, ast.sourceSpan, condition, trueExp, falseExp);\n }\n return ast;\n }\n visitPipe(ast, context) {\n const exp = ast.exp.visit(this);\n const args = this.visitAll(ast.args);\n if (exp !== ast.exp || args !== ast.args) {\n return new BindingPipe(ast.span, ast.sourceSpan, exp, ast.name, args, ast.nameSpan);\n }\n return ast;\n }\n visitKeyedRead(ast, context) {\n const obj = ast.obj.visit(this);\n const key = ast.key.visit(this);\n if (obj !== ast.obj || key !== ast.key) {\n return new KeyedRead(ast.span, ast.sourceSpan, obj, key);\n }\n return ast;\n }\n visitKeyedWrite(ast, context) {\n const obj = ast.obj.visit(this);\n const key = ast.key.visit(this);\n const value = ast.value.visit(this);\n if (obj !== ast.obj || key !== ast.key || value !== ast.value) {\n return new KeyedWrite(ast.span, ast.sourceSpan, obj, key, value);\n }\n return ast;\n }\n visitAll(asts) {\n const res = [];\n let modified = false;\n for (let i = 0; i < asts.length; ++i) {\n const original = asts[i];\n const value = original.visit(this);\n res[i] = value;\n modified = modified || value !== original;\n }\n return modified ? res : asts;\n }\n visitChain(ast, context) {\n const expressions = this.visitAll(ast.expressions);\n if (expressions !== ast.expressions) {\n return new Chain(ast.span, ast.sourceSpan, expressions);\n }\n return ast;\n }\n visitQuote(ast, context) {\n return ast;\n }\n}\n// Bindings\nclass ParsedProperty {\n constructor(name, expression, type, \n // TODO(FW-2095): `keySpan` should really be required but allows `undefined` so VE does\n // not need to be updated. Make `keySpan` required when VE is removed.\n sourceSpan, keySpan, valueSpan) {\n this.name = name;\n this.expression = expression;\n this.type = type;\n this.sourceSpan = sourceSpan;\n this.keySpan = keySpan;\n this.valueSpan = valueSpan;\n this.isLiteral = this.type === ParsedPropertyType.LITERAL_ATTR;\n this.isAnimation = this.type === ParsedPropertyType.ANIMATION;\n }\n}\nvar ParsedPropertyType;\n(function (ParsedPropertyType) {\n ParsedPropertyType[ParsedPropertyType[\"DEFAULT\"] = 0] = \"DEFAULT\";\n ParsedPropertyType[ParsedPropertyType[\"LITERAL_ATTR\"] = 1] = \"LITERAL_ATTR\";\n ParsedPropertyType[ParsedPropertyType[\"ANIMATION\"] = 2] = \"ANIMATION\";\n})(ParsedPropertyType || (ParsedPropertyType = {}));\nclass ParsedEvent {\n // Regular events have a target\n // Animation events have a phase\n constructor(name, targetOrPhase, type, handler, sourceSpan, \n // TODO(FW-2095): keySpan should be required but was made optional to avoid changing VE\n handlerSpan, keySpan) {\n this.name = name;\n this.targetOrPhase = targetOrPhase;\n this.type = type;\n this.handler = handler;\n this.sourceSpan = sourceSpan;\n this.handlerSpan = handlerSpan;\n this.keySpan = keySpan;\n }\n}\n/**\n * ParsedVariable represents a variable declaration in a microsyntax expression.\n */\nclass ParsedVariable {\n constructor(name, value, sourceSpan, keySpan, valueSpan) {\n this.name = name;\n this.value = value;\n this.sourceSpan = sourceSpan;\n this.keySpan = keySpan;\n this.valueSpan = valueSpan;\n }\n}\nclass BoundElementProperty {\n constructor(name, type, securityContext, value, unit, sourceSpan, keySpan, valueSpan) {\n this.name = name;\n this.type = type;\n this.securityContext = securityContext;\n this.value = value;\n this.unit = unit;\n this.sourceSpan = sourceSpan;\n this.keySpan = keySpan;\n this.valueSpan = valueSpan;\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass EventHandlerVars {\n}\nEventHandlerVars.event = variable('$event');\nclass ConvertActionBindingResult {\n constructor(\n /**\n * Render2 compatible statements,\n */\n stmts, \n /**\n * Variable name used with render2 compatible statements.\n */\n allowDefault) {\n this.stmts = stmts;\n this.allowDefault = allowDefault;\n /**\n * This is bit of a hack. It converts statements which render2 expects to statements which are\n * expected by render3.\n *\n * Example: `` will generate:\n *\n * Render3:\n * ```\n * const pd_b:any = (( ctx.doSomething($event)) !== false);\n * return pd_b;\n * ```\n *\n * but render2 expects:\n * ```\n * return ctx.doSomething($event);\n * ```\n */\n // TODO(misko): remove this hack once we no longer support ViewEngine.\n this.render3Stmts = stmts.map((statement) => {\n if (statement instanceof DeclareVarStmt && statement.name == allowDefault.name &&\n statement.value instanceof BinaryOperatorExpr) {\n const lhs = statement.value.lhs;\n return new ReturnStatement(lhs.value);\n }\n return statement;\n });\n }\n}\n/**\n * Converts the given expression AST into an executable output AST, assuming the expression is\n * used in an action binding (e.g. an event handler).\n */\nfunction convertActionBinding(localResolver, implicitReceiver, action, bindingId, interpolationFunction, baseSourceSpan, implicitReceiverAccesses, globals) {\n if (!localResolver) {\n localResolver = new DefaultLocalResolver(globals);\n }\n const actionWithoutBuiltins = convertPropertyBindingBuiltins({\n createLiteralArrayConverter: (argCount) => {\n // Note: no caching for literal arrays in actions.\n return (args) => literalArr(args);\n },\n createLiteralMapConverter: (keys) => {\n // Note: no caching for literal maps in actions.\n return (values) => {\n const entries = keys.map((k, i) => ({\n key: k.key,\n value: values[i],\n quoted: k.quoted,\n }));\n return literalMap(entries);\n };\n },\n createPipeConverter: (name) => {\n throw new Error(`Illegal State: Actions are not allowed to contain pipes. Pipe: ${name}`);\n }\n }, action);\n const visitor = new _AstToIrVisitor(localResolver, implicitReceiver, bindingId, interpolationFunction, baseSourceSpan, implicitReceiverAccesses);\n const actionStmts = [];\n flattenStatements(actionWithoutBuiltins.visit(visitor, _Mode.Statement), actionStmts);\n prependTemporaryDecls(visitor.temporaryCount, bindingId, actionStmts);\n if (visitor.usesImplicitReceiver) {\n localResolver.notifyImplicitReceiverUse();\n }\n const lastIndex = actionStmts.length - 1;\n let preventDefaultVar = null;\n if (lastIndex >= 0) {\n const lastStatement = actionStmts[lastIndex];\n const returnExpr = convertStmtIntoExpression(lastStatement);\n if (returnExpr) {\n // Note: We need to cast the result of the method call to dynamic,\n // as it might be a void method!\n preventDefaultVar = createPreventDefaultVar(bindingId);\n actionStmts[lastIndex] =\n preventDefaultVar.set(returnExpr.cast(DYNAMIC_TYPE).notIdentical(literal(false)))\n .toDeclStmt(null, [StmtModifier.Final]);\n }\n }\n return new ConvertActionBindingResult(actionStmts, preventDefaultVar);\n}\nfunction convertPropertyBindingBuiltins(converterFactory, ast) {\n return convertBuiltins(converterFactory, ast);\n}\nclass ConvertPropertyBindingResult {\n constructor(stmts, currValExpr) {\n this.stmts = stmts;\n this.currValExpr = currValExpr;\n }\n}\nvar BindingForm;\n(function (BindingForm) {\n // The general form of binding expression, supports all expressions.\n BindingForm[BindingForm[\"General\"] = 0] = \"General\";\n // Try to generate a simple binding (no temporaries or statements)\n // otherwise generate a general binding\n BindingForm[BindingForm[\"TrySimple\"] = 1] = \"TrySimple\";\n // Inlines assignment of temporaries into the generated expression. The result may still\n // have statements attached for declarations of temporary variables.\n // This is the only relevant form for Ivy, the other forms are only used in ViewEngine.\n BindingForm[BindingForm[\"Expression\"] = 2] = \"Expression\";\n})(BindingForm || (BindingForm = {}));\n/**\n * Converts the given expression AST into an executable output AST, assuming the expression\n * is used in property binding. The expression has to be preprocessed via\n * `convertPropertyBindingBuiltins`.\n */\nfunction convertPropertyBinding(localResolver, implicitReceiver, expressionWithoutBuiltins, bindingId, form, interpolationFunction) {\n if (!localResolver) {\n localResolver = new DefaultLocalResolver();\n }\n const visitor = new _AstToIrVisitor(localResolver, implicitReceiver, bindingId, interpolationFunction);\n const outputExpr = expressionWithoutBuiltins.visit(visitor, _Mode.Expression);\n const stmts = getStatementsFromVisitor(visitor, bindingId);\n if (visitor.usesImplicitReceiver) {\n localResolver.notifyImplicitReceiverUse();\n }\n if (visitor.temporaryCount === 0 && form == BindingForm.TrySimple) {\n return new ConvertPropertyBindingResult([], outputExpr);\n }\n else if (form === BindingForm.Expression) {\n return new ConvertPropertyBindingResult(stmts, outputExpr);\n }\n const currValExpr = createCurrValueExpr(bindingId);\n stmts.push(currValExpr.set(outputExpr).toDeclStmt(DYNAMIC_TYPE, [StmtModifier.Final]));\n return new ConvertPropertyBindingResult(stmts, currValExpr);\n}\n/**\n * Given some expression, such as a binding or interpolation expression, and a context expression to\n * look values up on, visit each facet of the given expression resolving values from the context\n * expression such that a list of arguments can be derived from the found values that can be used as\n * arguments to an external update instruction.\n *\n * @param localResolver The resolver to use to look up expressions by name appropriately\n * @param contextVariableExpression The expression representing the context variable used to create\n * the final argument expressions\n * @param expressionWithArgumentsToExtract The expression to visit to figure out what values need to\n * be resolved and what arguments list to build.\n * @param bindingId A name prefix used to create temporary variable names if they're needed for the\n * arguments generated\n * @returns An array of expressions that can be passed as arguments to instruction expressions like\n * `o.importExpr(R3.propertyInterpolate).callFn(result)`\n */\nfunction convertUpdateArguments(localResolver, contextVariableExpression, expressionWithArgumentsToExtract, bindingId) {\n const visitor = new _AstToIrVisitor(localResolver, contextVariableExpression, bindingId, undefined);\n const outputExpr = expressionWithArgumentsToExtract.visit(visitor, _Mode.Expression);\n if (visitor.usesImplicitReceiver) {\n localResolver.notifyImplicitReceiverUse();\n }\n const stmts = getStatementsFromVisitor(visitor, bindingId);\n // Removing the first argument, because it was a length for ViewEngine, not Ivy.\n let args = outputExpr.args.slice(1);\n if (expressionWithArgumentsToExtract instanceof Interpolation) {\n // If we're dealing with an interpolation of 1 value with an empty prefix and suffix, reduce the\n // args returned to just the value, because we're going to pass it to a special instruction.\n const strings = expressionWithArgumentsToExtract.strings;\n if (args.length === 3 && strings[0] === '' && strings[1] === '') {\n // Single argument interpolate instructions.\n args = [args[1]];\n }\n else if (args.length >= 19) {\n // 19 or more arguments must be passed to the `interpolateV`-style instructions, which accept\n // an array of arguments\n args = [literalArr(args)];\n }\n }\n return { stmts, args };\n}\nfunction getStatementsFromVisitor(visitor, bindingId) {\n const stmts = [];\n for (let i = 0; i < visitor.temporaryCount; i++) {\n stmts.push(temporaryDeclaration(bindingId, i));\n }\n return stmts;\n}\nfunction convertBuiltins(converterFactory, ast) {\n const visitor = new _BuiltinAstConverter(converterFactory);\n return ast.visit(visitor);\n}\nfunction temporaryName(bindingId, temporaryNumber) {\n return `tmp_${bindingId}_${temporaryNumber}`;\n}\nfunction temporaryDeclaration(bindingId, temporaryNumber) {\n return new DeclareVarStmt(temporaryName(bindingId, temporaryNumber), NULL_EXPR);\n}\nfunction prependTemporaryDecls(temporaryCount, bindingId, statements) {\n for (let i = temporaryCount - 1; i >= 0; i--) {\n statements.unshift(temporaryDeclaration(bindingId, i));\n }\n}\nvar _Mode;\n(function (_Mode) {\n _Mode[_Mode[\"Statement\"] = 0] = \"Statement\";\n _Mode[_Mode[\"Expression\"] = 1] = \"Expression\";\n})(_Mode || (_Mode = {}));\nfunction ensureStatementMode(mode, ast) {\n if (mode !== _Mode.Statement) {\n throw new Error(`Expected a statement, but saw ${ast}`);\n }\n}\nfunction ensureExpressionMode(mode, ast) {\n if (mode !== _Mode.Expression) {\n throw new Error(`Expected an expression, but saw ${ast}`);\n }\n}\nfunction convertToStatementIfNeeded(mode, expr) {\n if (mode === _Mode.Statement) {\n return expr.toStmt();\n }\n else {\n return expr;\n }\n}\nclass _BuiltinAstConverter extends AstTransformer$1 {\n constructor(_converterFactory) {\n super();\n this._converterFactory = _converterFactory;\n }\n visitPipe(ast, context) {\n const args = [ast.exp, ...ast.args].map(ast => ast.visit(this, context));\n return new BuiltinFunctionCall(ast.span, ast.sourceSpan, args, this._converterFactory.createPipeConverter(ast.name, args.length));\n }\n visitLiteralArray(ast, context) {\n const args = ast.expressions.map(ast => ast.visit(this, context));\n return new BuiltinFunctionCall(ast.span, ast.sourceSpan, args, this._converterFactory.createLiteralArrayConverter(ast.expressions.length));\n }\n visitLiteralMap(ast, context) {\n const args = ast.values.map(ast => ast.visit(this, context));\n return new BuiltinFunctionCall(ast.span, ast.sourceSpan, args, this._converterFactory.createLiteralMapConverter(ast.keys));\n }\n}\nclass _AstToIrVisitor {\n constructor(_localResolver, _implicitReceiver, bindingId, interpolationFunction, baseSourceSpan, implicitReceiverAccesses) {\n this._localResolver = _localResolver;\n this._implicitReceiver = _implicitReceiver;\n this.bindingId = bindingId;\n this.interpolationFunction = interpolationFunction;\n this.baseSourceSpan = baseSourceSpan;\n this.implicitReceiverAccesses = implicitReceiverAccesses;\n this._nodeMap = new Map();\n this._resultMap = new Map();\n this._currentTemporary = 0;\n this.temporaryCount = 0;\n this.usesImplicitReceiver = false;\n }\n visitUnary(ast, mode) {\n let op;\n switch (ast.operator) {\n case '+':\n op = UnaryOperator.Plus;\n break;\n case '-':\n op = UnaryOperator.Minus;\n break;\n default:\n throw new Error(`Unsupported operator ${ast.operator}`);\n }\n return convertToStatementIfNeeded(mode, new UnaryOperatorExpr(op, this._visit(ast.expr, _Mode.Expression), undefined, this.convertSourceSpan(ast.span)));\n }\n visitBinary(ast, mode) {\n let op;\n switch (ast.operation) {\n case '+':\n op = BinaryOperator.Plus;\n break;\n case '-':\n op = BinaryOperator.Minus;\n break;\n case '*':\n op = BinaryOperator.Multiply;\n break;\n case '/':\n op = BinaryOperator.Divide;\n break;\n case '%':\n op = BinaryOperator.Modulo;\n break;\n case '&&':\n op = BinaryOperator.And;\n break;\n case '||':\n op = BinaryOperator.Or;\n break;\n case '==':\n op = BinaryOperator.Equals;\n break;\n case '!=':\n op = BinaryOperator.NotEquals;\n break;\n case '===':\n op = BinaryOperator.Identical;\n break;\n case '!==':\n op = BinaryOperator.NotIdentical;\n break;\n case '<':\n op = BinaryOperator.Lower;\n break;\n case '>':\n op = BinaryOperator.Bigger;\n break;\n case '<=':\n op = BinaryOperator.LowerEquals;\n break;\n case '>=':\n op = BinaryOperator.BiggerEquals;\n break;\n default:\n throw new Error(`Unsupported operation ${ast.operation}`);\n }\n return convertToStatementIfNeeded(mode, new BinaryOperatorExpr(op, this._visit(ast.left, _Mode.Expression), this._visit(ast.right, _Mode.Expression), undefined, this.convertSourceSpan(ast.span)));\n }\n visitChain(ast, mode) {\n ensureStatementMode(mode, ast);\n return this.visitAll(ast.expressions, mode);\n }\n visitConditional(ast, mode) {\n const value = this._visit(ast.condition, _Mode.Expression);\n return convertToStatementIfNeeded(mode, value.conditional(this._visit(ast.trueExp, _Mode.Expression), this._visit(ast.falseExp, _Mode.Expression), this.convertSourceSpan(ast.span)));\n }\n visitPipe(ast, mode) {\n throw new Error(`Illegal state: Pipes should have been converted into functions. Pipe: ${ast.name}`);\n }\n visitFunctionCall(ast, mode) {\n const convertedArgs = this.visitAll(ast.args, _Mode.Expression);\n let fnResult;\n if (ast instanceof BuiltinFunctionCall) {\n fnResult = ast.converter(convertedArgs);\n }\n else {\n fnResult = this._visit(ast.target, _Mode.Expression)\n .callFn(convertedArgs, this.convertSourceSpan(ast.span));\n }\n return convertToStatementIfNeeded(mode, fnResult);\n }\n visitImplicitReceiver(ast, mode) {\n ensureExpressionMode(mode, ast);\n this.usesImplicitReceiver = true;\n return this._implicitReceiver;\n }\n visitThisReceiver(ast, mode) {\n return this.visitImplicitReceiver(ast, mode);\n }\n visitInterpolation(ast, mode) {\n ensureExpressionMode(mode, ast);\n const args = [literal(ast.expressions.length)];\n for (let i = 0; i < ast.strings.length - 1; i++) {\n args.push(literal(ast.strings[i]));\n args.push(this._visit(ast.expressions[i], _Mode.Expression));\n }\n args.push(literal(ast.strings[ast.strings.length - 1]));\n if (this.interpolationFunction) {\n return this.interpolationFunction(args);\n }\n return ast.expressions.length <= 9 ?\n importExpr(Identifiers.inlineInterpolate).callFn(args) :\n importExpr(Identifiers.interpolate).callFn([\n args[0], literalArr(args.slice(1), undefined, this.convertSourceSpan(ast.span))\n ]);\n }\n visitKeyedRead(ast, mode) {\n const leftMostSafe = this.leftMostSafeNode(ast);\n if (leftMostSafe) {\n return this.convertSafeAccess(ast, leftMostSafe, mode);\n }\n else {\n return convertToStatementIfNeeded(mode, this._visit(ast.obj, _Mode.Expression).key(this._visit(ast.key, _Mode.Expression)));\n }\n }\n visitKeyedWrite(ast, mode) {\n const obj = this._visit(ast.obj, _Mode.Expression);\n const key = this._visit(ast.key, _Mode.Expression);\n const value = this._visit(ast.value, _Mode.Expression);\n return convertToStatementIfNeeded(mode, obj.key(key).set(value));\n }\n visitLiteralArray(ast, mode) {\n throw new Error(`Illegal State: literal arrays should have been converted into functions`);\n }\n visitLiteralMap(ast, mode) {\n throw new Error(`Illegal State: literal maps should have been converted into functions`);\n }\n visitLiteralPrimitive(ast, mode) {\n // For literal values of null, undefined, true, or false allow type interference\n // to infer the type.\n const type = ast.value === null || ast.value === undefined || ast.value === true || ast.value === true ?\n INFERRED_TYPE :\n undefined;\n return convertToStatementIfNeeded(mode, literal(ast.value, type, this.convertSourceSpan(ast.span)));\n }\n _getLocal(name, receiver) {\n var _a;\n if (((_a = this._localResolver.globals) === null || _a === void 0 ? void 0 : _a.has(name)) && receiver instanceof ThisReceiver) {\n return null;\n }\n return this._localResolver.getLocal(name);\n }\n visitMethodCall(ast, mode) {\n if (ast.receiver instanceof ImplicitReceiver &&\n !(ast.receiver instanceof ThisReceiver) && ast.name === '$any') {\n const args = this.visitAll(ast.args, _Mode.Expression);\n if (args.length != 1) {\n throw new Error(`Invalid call to $any, expected 1 argument but received ${args.length || 'none'}`);\n }\n return args[0].cast(DYNAMIC_TYPE, this.convertSourceSpan(ast.span));\n }\n const leftMostSafe = this.leftMostSafeNode(ast);\n if (leftMostSafe) {\n return this.convertSafeAccess(ast, leftMostSafe, mode);\n }\n else {\n const args = this.visitAll(ast.args, _Mode.Expression);\n const prevUsesImplicitReceiver = this.usesImplicitReceiver;\n let result = null;\n const receiver = this._visit(ast.receiver, _Mode.Expression);\n if (receiver === this._implicitReceiver) {\n const varExpr = this._getLocal(ast.name, ast.receiver);\n if (varExpr) {\n // Restore the previous \"usesImplicitReceiver\" state since the implicit\n // receiver has been replaced with a resolved local expression.\n this.usesImplicitReceiver = prevUsesImplicitReceiver;\n result = varExpr.callFn(args);\n this.addImplicitReceiverAccess(ast.name);\n }\n }\n if (result == null) {\n result = receiver.callMethod(ast.name, args, this.convertSourceSpan(ast.span));\n }\n return convertToStatementIfNeeded(mode, result);\n }\n }\n visitPrefixNot(ast, mode) {\n return convertToStatementIfNeeded(mode, not(this._visit(ast.expression, _Mode.Expression)));\n }\n visitNonNullAssert(ast, mode) {\n return convertToStatementIfNeeded(mode, assertNotNull(this._visit(ast.expression, _Mode.Expression)));\n }\n visitPropertyRead(ast, mode) {\n const leftMostSafe = this.leftMostSafeNode(ast);\n if (leftMostSafe) {\n return this.convertSafeAccess(ast, leftMostSafe, mode);\n }\n else {\n let result = null;\n const prevUsesImplicitReceiver = this.usesImplicitReceiver;\n const receiver = this._visit(ast.receiver, _Mode.Expression);\n if (receiver === this._implicitReceiver) {\n result = this._getLocal(ast.name, ast.receiver);\n if (result) {\n // Restore the previous \"usesImplicitReceiver\" state since the implicit\n // receiver has been replaced with a resolved local expression.\n this.usesImplicitReceiver = prevUsesImplicitReceiver;\n this.addImplicitReceiverAccess(ast.name);\n }\n }\n if (result == null) {\n result = receiver.prop(ast.name);\n }\n return convertToStatementIfNeeded(mode, result);\n }\n }\n visitPropertyWrite(ast, mode) {\n const receiver = this._visit(ast.receiver, _Mode.Expression);\n const prevUsesImplicitReceiver = this.usesImplicitReceiver;\n let varExpr = null;\n if (receiver === this._implicitReceiver) {\n const localExpr = this._getLocal(ast.name, ast.receiver);\n if (localExpr) {\n if (localExpr instanceof ReadPropExpr) {\n // If the local variable is a property read expression, it's a reference\n // to a 'context.property' value and will be used as the target of the\n // write expression.\n varExpr = localExpr;\n // Restore the previous \"usesImplicitReceiver\" state since the implicit\n // receiver has been replaced with a resolved local expression.\n this.usesImplicitReceiver = prevUsesImplicitReceiver;\n this.addImplicitReceiverAccess(ast.name);\n }\n else {\n // Otherwise it's an error.\n const receiver = ast.name;\n const value = (ast.value instanceof PropertyRead) ? ast.value.name : undefined;\n throw new Error(`Cannot assign value \"${value}\" to template variable \"${receiver}\". Template variables are read-only.`);\n }\n }\n }\n // If no local expression could be produced, use the original receiver's\n // property as the target.\n if (varExpr === null) {\n varExpr = receiver.prop(ast.name);\n }\n return convertToStatementIfNeeded(mode, varExpr.set(this._visit(ast.value, _Mode.Expression)));\n }\n visitSafePropertyRead(ast, mode) {\n return this.convertSafeAccess(ast, this.leftMostSafeNode(ast), mode);\n }\n visitSafeMethodCall(ast, mode) {\n return this.convertSafeAccess(ast, this.leftMostSafeNode(ast), mode);\n }\n visitAll(asts, mode) {\n return asts.map(ast => this._visit(ast, mode));\n }\n visitQuote(ast, mode) {\n throw new Error(`Quotes are not supported for evaluation!\n Statement: ${ast.uninterpretedExpression} located at ${ast.location}`);\n }\n _visit(ast, mode) {\n const result = this._resultMap.get(ast);\n if (result)\n return result;\n return (this._nodeMap.get(ast) || ast).visit(this, mode);\n }\n convertSafeAccess(ast, leftMostSafe, mode) {\n // If the expression contains a safe access node on the left it needs to be converted to\n // an expression that guards the access to the member by checking the receiver for blank. As\n // execution proceeds from left to right, the left most part of the expression must be guarded\n // first but, because member access is left associative, the right side of the expression is at\n // the top of the AST. The desired result requires lifting a copy of the left part of the\n // expression up to test it for blank before generating the unguarded version.\n // Consider, for example the following expression: a?.b.c?.d.e\n // This results in the ast:\n // .\n // / \\\n // ?. e\n // / \\\n // . d\n // / \\\n // ?. c\n // / \\\n // a b\n // The following tree should be generated:\n //\n // /---- ? ----\\\n // / | \\\n // a /--- ? ---\\ null\n // / | \\\n // . . null\n // / \\ / \\\n // . c . e\n // / \\ / \\\n // a b . d\n // / \\\n // . c\n // / \\\n // a b\n //\n // Notice that the first guard condition is the left hand of the left most safe access node\n // which comes in as leftMostSafe to this routine.\n let guardedExpression = this._visit(leftMostSafe.receiver, _Mode.Expression);\n let temporary = undefined;\n if (this.needsTemporary(leftMostSafe.receiver)) {\n // If the expression has method calls or pipes then we need to save the result into a\n // temporary variable to avoid calling stateful or impure code more than once.\n temporary = this.allocateTemporary();\n // Preserve the result in the temporary variable\n guardedExpression = temporary.set(guardedExpression);\n // Ensure all further references to the guarded expression refer to the temporary instead.\n this._resultMap.set(leftMostSafe.receiver, temporary);\n }\n const condition = guardedExpression.isBlank();\n // Convert the ast to an unguarded access to the receiver's member. The map will substitute\n // leftMostNode with its unguarded version in the call to `this.visit()`.\n if (leftMostSafe instanceof SafeMethodCall) {\n this._nodeMap.set(leftMostSafe, new MethodCall(leftMostSafe.span, leftMostSafe.sourceSpan, leftMostSafe.nameSpan, leftMostSafe.receiver, leftMostSafe.name, leftMostSafe.args));\n }\n else {\n this._nodeMap.set(leftMostSafe, new PropertyRead(leftMostSafe.span, leftMostSafe.sourceSpan, leftMostSafe.nameSpan, leftMostSafe.receiver, leftMostSafe.name));\n }\n // Recursively convert the node now without the guarded member access.\n const access = this._visit(ast, _Mode.Expression);\n // Remove the mapping. This is not strictly required as the converter only traverses each node\n // once but is safer if the conversion is changed to traverse the nodes more than once.\n this._nodeMap.delete(leftMostSafe);\n // If we allocated a temporary, release it.\n if (temporary) {\n this.releaseTemporary(temporary);\n }\n // Produce the conditional\n return convertToStatementIfNeeded(mode, condition.conditional(literal(null), access));\n }\n // Given an expression of the form a?.b.c?.d.e then the left most safe node is\n // the (a?.b). The . and ?. are left associative thus can be rewritten as:\n // ((((a?.c).b).c)?.d).e. This returns the most deeply nested safe read or\n // safe method call as this needs to be transformed initially to:\n // a == null ? null : a.c.b.c?.d.e\n // then to:\n // a == null ? null : a.b.c == null ? null : a.b.c.d.e\n leftMostSafeNode(ast) {\n const visit = (visitor, ast) => {\n return (this._nodeMap.get(ast) || ast).visit(visitor);\n };\n return ast.visit({\n visitUnary(ast) {\n return null;\n },\n visitBinary(ast) {\n return null;\n },\n visitChain(ast) {\n return null;\n },\n visitConditional(ast) {\n return null;\n },\n visitFunctionCall(ast) {\n return null;\n },\n visitImplicitReceiver(ast) {\n return null;\n },\n visitThisReceiver(ast) {\n return null;\n },\n visitInterpolation(ast) {\n return null;\n },\n visitKeyedRead(ast) {\n return visit(this, ast.obj);\n },\n visitKeyedWrite(ast) {\n return null;\n },\n visitLiteralArray(ast) {\n return null;\n },\n visitLiteralMap(ast) {\n return null;\n },\n visitLiteralPrimitive(ast) {\n return null;\n },\n visitMethodCall(ast) {\n return visit(this, ast.receiver);\n },\n visitPipe(ast) {\n return null;\n },\n visitPrefixNot(ast) {\n return null;\n },\n visitNonNullAssert(ast) {\n return null;\n },\n visitPropertyRead(ast) {\n return visit(this, ast.receiver);\n },\n visitPropertyWrite(ast) {\n return null;\n },\n visitQuote(ast) {\n return null;\n },\n visitSafeMethodCall(ast) {\n return visit(this, ast.receiver) || ast;\n },\n visitSafePropertyRead(ast) {\n return visit(this, ast.receiver) || ast;\n }\n });\n }\n // Returns true of the AST includes a method or a pipe indicating that, if the\n // expression is used as the target of a safe property or method access then\n // the expression should be stored into a temporary variable.\n needsTemporary(ast) {\n const visit = (visitor, ast) => {\n return ast && (this._nodeMap.get(ast) || ast).visit(visitor);\n };\n const visitSome = (visitor, ast) => {\n return ast.some(ast => visit(visitor, ast));\n };\n return ast.visit({\n visitUnary(ast) {\n return visit(this, ast.expr);\n },\n visitBinary(ast) {\n return visit(this, ast.left) || visit(this, ast.right);\n },\n visitChain(ast) {\n return false;\n },\n visitConditional(ast) {\n return visit(this, ast.condition) || visit(this, ast.trueExp) || visit(this, ast.falseExp);\n },\n visitFunctionCall(ast) {\n return true;\n },\n visitImplicitReceiver(ast) {\n return false;\n },\n visitThisReceiver(ast) {\n return false;\n },\n visitInterpolation(ast) {\n return visitSome(this, ast.expressions);\n },\n visitKeyedRead(ast) {\n return false;\n },\n visitKeyedWrite(ast) {\n return false;\n },\n visitLiteralArray(ast) {\n return true;\n },\n visitLiteralMap(ast) {\n return true;\n },\n visitLiteralPrimitive(ast) {\n return false;\n },\n visitMethodCall(ast) {\n return true;\n },\n visitPipe(ast) {\n return true;\n },\n visitPrefixNot(ast) {\n return visit(this, ast.expression);\n },\n visitNonNullAssert(ast) {\n return visit(this, ast.expression);\n },\n visitPropertyRead(ast) {\n return false;\n },\n visitPropertyWrite(ast) {\n return false;\n },\n visitQuote(ast) {\n return false;\n },\n visitSafeMethodCall(ast) {\n return true;\n },\n visitSafePropertyRead(ast) {\n return false;\n }\n });\n }\n allocateTemporary() {\n const tempNumber = this._currentTemporary++;\n this.temporaryCount = Math.max(this._currentTemporary, this.temporaryCount);\n return new ReadVarExpr(temporaryName(this.bindingId, tempNumber));\n }\n releaseTemporary(temporary) {\n this._currentTemporary--;\n if (temporary.name != temporaryName(this.bindingId, this._currentTemporary)) {\n throw new Error(`Temporary ${temporary.name} released out of order`);\n }\n }\n /**\n * Creates an absolute `ParseSourceSpan` from the relative `ParseSpan`.\n *\n * `ParseSpan` objects are relative to the start of the expression.\n * This method converts these to full `ParseSourceSpan` objects that\n * show where the span is within the overall source file.\n *\n * @param span the relative span to convert.\n * @returns a `ParseSourceSpan` for the given span or null if no\n * `baseSourceSpan` was provided to this class.\n */\n convertSourceSpan(span) {\n if (this.baseSourceSpan) {\n const start = this.baseSourceSpan.start.moveBy(span.start);\n const end = this.baseSourceSpan.start.moveBy(span.end);\n const fullStart = this.baseSourceSpan.fullStart.moveBy(span.start);\n return new ParseSourceSpan(start, end, fullStart);\n }\n else {\n return null;\n }\n }\n /** Adds the name of an AST to the list of implicit receiver accesses. */\n addImplicitReceiverAccess(name) {\n if (this.implicitReceiverAccesses) {\n this.implicitReceiverAccesses.add(name);\n }\n }\n}\nfunction flattenStatements(arg, output) {\n if (Array.isArray(arg)) {\n arg.forEach((entry) => flattenStatements(entry, output));\n }\n else {\n output.push(arg);\n }\n}\nclass DefaultLocalResolver {\n constructor(globals) {\n this.globals = globals;\n }\n notifyImplicitReceiverUse() { }\n getLocal(name) {\n if (name === EventHandlerVars.event.name) {\n return EventHandlerVars.event;\n }\n return null;\n }\n}\nfunction createCurrValueExpr(bindingId) {\n return variable(`currVal_${bindingId}`); // fix syntax highlighting: `\n}\nfunction createPreventDefaultVar(bindingId) {\n return variable(`pd_${bindingId}`);\n}\nfunction convertStmtIntoExpression(stmt) {\n if (stmt instanceof ExpressionStatement) {\n return stmt.expr;\n }\n else if (stmt instanceof ReturnStatement) {\n return stmt.value;\n }\n return null;\n}\nclass BuiltinFunctionCall extends FunctionCall {\n constructor(span, sourceSpan, args, converter) {\n super(span, sourceSpan, null, args);\n this.args = args;\n this.converter = converter;\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * This file is a port of shadowCSS from webcomponents.js to TypeScript.\n *\n * Please make sure to keep to edits in sync with the source file.\n *\n * Source:\n * https://github.com/webcomponents/webcomponentsjs/blob/4efecd7e0e/src/ShadowCSS/ShadowCSS.js\n *\n * The original file level comment is reproduced below\n */\n/*\n This is a limited shim for ShadowDOM css styling.\n https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#styles\n\n The intention here is to support only the styling features which can be\n relatively simply implemented. The goal is to allow users to avoid the\n most obvious pitfalls and do so without compromising performance significantly.\n For ShadowDOM styling that's not covered here, a set of best practices\n can be provided that should allow users to accomplish more complex styling.\n\n The following is a list of specific ShadowDOM styling features and a brief\n discussion of the approach used to shim.\n\n Shimmed features:\n\n * :host, :host-context: ShadowDOM allows styling of the shadowRoot's host\n element using the :host rule. To shim this feature, the :host styles are\n reformatted and prefixed with a given scope name and promoted to a\n document level stylesheet.\n For example, given a scope name of .foo, a rule like this:\n\n :host {\n background: red;\n }\n }\n\n becomes:\n\n .foo {\n background: red;\n }\n\n * encapsulation: Styles defined within ShadowDOM, apply only to\n dom inside the ShadowDOM. Polymer uses one of two techniques to implement\n this feature.\n\n By default, rules are prefixed with the host element tag name\n as a descendant selector. This ensures styling does not leak out of the 'top'\n of the element's ShadowDOM. For example,\n\n div {\n font-weight: bold;\n }\n\n becomes:\n\n x-foo div {\n font-weight: bold;\n }\n\n becomes:\n\n\n Alternatively, if WebComponents.ShadowCSS.strictStyling is set to true then\n selectors are scoped by adding an attribute selector suffix to each\n simple selector that contains the host element tag name. Each element\n in the element's ShadowDOM template is also given the scope attribute.\n Thus, these rules match only elements that have the scope attribute.\n For example, given a scope name of x-foo, a rule like this:\n\n div {\n font-weight: bold;\n }\n\n becomes:\n\n div[x-foo] {\n font-weight: bold;\n }\n\n Note that elements that are dynamically added to a scope must have the scope\n selector added to them manually.\n\n * upper/lower bound encapsulation: Styles which are defined outside a\n shadowRoot should not cross the ShadowDOM boundary and should not apply\n inside a shadowRoot.\n\n This styling behavior is not emulated. Some possible ways to do this that\n were rejected due to complexity and/or performance concerns include: (1) reset\n every possible property for every possible selector for a given scope name;\n (2) re-implement css in javascript.\n\n As an alternative, users should make sure to use selectors\n specific to the scope in which they are working.\n\n * ::distributed: This behavior is not emulated. It's often not necessary\n to style the contents of a specific insertion point and instead, descendants\n of the host element can be styled selectively. Users can also create an\n extra node around an insertion point and style that node's contents\n via descendent selectors. For example, with a shadowRoot like this:\n\n \n \n\n could become:\n\n \n \n \n \n\n Note the use of @polyfill in the comment above a ShadowDOM specific style\n declaration. This is a directive to the styling shim to use the selector\n in comments in lieu of the next selector when running under polyfill.\n*/\nclass ShadowCss {\n constructor() {\n this.strictStyling = true;\n }\n /*\n * Shim some cssText with the given selector. Returns cssText that can\n * be included in the document via WebComponents.ShadowCSS.addCssToDocument(css).\n *\n * When strictStyling is true:\n * - selector is the attribute added to all elements inside the host,\n * - hostSelector is the attribute added to the host itself.\n */\n shimCssText(cssText, selector, hostSelector = '') {\n const commentsWithHash = extractCommentsWithHash(cssText);\n cssText = stripComments(cssText);\n cssText = this._insertDirectives(cssText);\n const scopedCssText = this._scopeCssText(cssText, selector, hostSelector);\n return [scopedCssText, ...commentsWithHash].join('\\n');\n }\n _insertDirectives(cssText) {\n cssText = this._insertPolyfillDirectivesInCssText(cssText);\n return this._insertPolyfillRulesInCssText(cssText);\n }\n /*\n * Process styles to convert native ShadowDOM rules that will trip\n * up the css parser; we rely on decorating the stylesheet with inert rules.\n *\n * For example, we convert this rule:\n *\n * polyfill-next-selector { content: ':host menu-item'; }\n * ::content menu-item {\n *\n * to this:\n *\n * scopeName menu-item {\n *\n **/\n _insertPolyfillDirectivesInCssText(cssText) {\n // Difference with webcomponents.js: does not handle comments\n return cssText.replace(_cssContentNextSelectorRe, function (...m) {\n return m[2] + '{';\n });\n }\n /*\n * Process styles to add rules which will only apply under the polyfill\n *\n * For example, we convert this rule:\n *\n * polyfill-rule {\n * content: ':host menu-item';\n * ...\n * }\n *\n * to this:\n *\n * scopeName menu-item {...}\n *\n **/\n _insertPolyfillRulesInCssText(cssText) {\n // Difference with webcomponents.js: does not handle comments\n return cssText.replace(_cssContentRuleRe, (...m) => {\n const rule = m[0].replace(m[1], '').replace(m[2], '');\n return m[4] + rule;\n });\n }\n /* Ensure styles are scoped. Pseudo-scoping takes a rule like:\n *\n * .foo {... }\n *\n * and converts this to\n *\n * scopeName .foo { ... }\n */\n _scopeCssText(cssText, scopeSelector, hostSelector) {\n const unscopedRules = this._extractUnscopedRulesFromCssText(cssText);\n // replace :host and :host-context -shadowcsshost and -shadowcsshost respectively\n cssText = this._insertPolyfillHostInCssText(cssText);\n cssText = this._convertColonHost(cssText);\n cssText = this._convertColonHostContext(cssText);\n cssText = this._convertShadowDOMSelectors(cssText);\n if (scopeSelector) {\n cssText = this._scopeSelectors(cssText, scopeSelector, hostSelector);\n }\n cssText = cssText + '\\n' + unscopedRules;\n return cssText.trim();\n }\n /*\n * Process styles to add rules which will only apply under the polyfill\n * and do not process via CSSOM. (CSSOM is destructive to rules on rare\n * occasions, e.g. -webkit-calc on Safari.)\n * For example, we convert this rule:\n *\n * @polyfill-unscoped-rule {\n * content: 'menu-item';\n * ... }\n *\n * to this:\n *\n * menu-item {...}\n *\n **/\n _extractUnscopedRulesFromCssText(cssText) {\n // Difference with webcomponents.js: does not handle comments\n let r = '';\n let m;\n _cssContentUnscopedRuleRe.lastIndex = 0;\n while ((m = _cssContentUnscopedRuleRe.exec(cssText)) !== null) {\n const rule = m[0].replace(m[2], '').replace(m[1], m[4]);\n r += rule + '\\n\\n';\n }\n return r;\n }\n /*\n * convert a rule like :host(.foo) > .bar { }\n *\n * to\n *\n * .foo > .bar\n */\n _convertColonHost(cssText) {\n return this._convertColonRule(cssText, _cssColonHostRe, this._colonHostPartReplacer);\n }\n /*\n * convert a rule like :host-context(.foo) > .bar { }\n *\n * to\n *\n * .foo > .bar, .foo scopeName > .bar { }\n *\n * and\n *\n * :host-context(.foo:host) .bar { ... }\n *\n * to\n *\n * .foo .bar { ... }\n */\n _convertColonHostContext(cssText) {\n return this._convertColonRule(cssText, _cssColonHostContextRe, this._colonHostContextPartReplacer);\n }\n _convertColonRule(cssText, regExp, partReplacer) {\n // m[1] = :host(-context), m[2] = contents of (), m[3] rest of rule\n return cssText.replace(regExp, function (...m) {\n if (m[2]) {\n const parts = m[2].split(',');\n const r = [];\n for (let i = 0; i < parts.length; i++) {\n const p = parts[i].trim();\n if (!p)\n break;\n r.push(partReplacer(_polyfillHostNoCombinator, p, m[3]));\n }\n return r.join(',');\n }\n else {\n return _polyfillHostNoCombinator + m[3];\n }\n });\n }\n _colonHostContextPartReplacer(host, part, suffix) {\n if (part.indexOf(_polyfillHost) > -1) {\n return this._colonHostPartReplacer(host, part, suffix);\n }\n else {\n return host + part + suffix + ', ' + part + ' ' + host + suffix;\n }\n }\n _colonHostPartReplacer(host, part, suffix) {\n return host + part.replace(_polyfillHost, '') + suffix;\n }\n /*\n * Convert combinators like ::shadow and pseudo-elements like ::content\n * by replacing with space.\n */\n _convertShadowDOMSelectors(cssText) {\n return _shadowDOMSelectorsRe.reduce((result, pattern) => result.replace(pattern, ' '), cssText);\n }\n // change a selector like 'div' to 'name div'\n _scopeSelectors(cssText, scopeSelector, hostSelector) {\n return processRules(cssText, (rule) => {\n let selector = rule.selector;\n let content = rule.content;\n if (rule.selector[0] != '@') {\n selector =\n this._scopeSelector(rule.selector, scopeSelector, hostSelector, this.strictStyling);\n }\n else if (rule.selector.startsWith('@media') || rule.selector.startsWith('@supports') ||\n rule.selector.startsWith('@page') || rule.selector.startsWith('@document')) {\n content = this._scopeSelectors(rule.content, scopeSelector, hostSelector);\n }\n return new CssRule(selector, content);\n });\n }\n _scopeSelector(selector, scopeSelector, hostSelector, strict) {\n return selector.split(',')\n .map(part => part.trim().split(_shadowDeepSelectors))\n .map((deepParts) => {\n const [shallowPart, ...otherParts] = deepParts;\n const applyScope = (shallowPart) => {\n if (this._selectorNeedsScoping(shallowPart, scopeSelector)) {\n return strict ?\n this._applyStrictSelectorScope(shallowPart, scopeSelector, hostSelector) :\n this._applySelectorScope(shallowPart, scopeSelector, hostSelector);\n }\n else {\n return shallowPart;\n }\n };\n return [applyScope(shallowPart), ...otherParts].join(' ');\n })\n .join(', ');\n }\n _selectorNeedsScoping(selector, scopeSelector) {\n const re = this._makeScopeMatcher(scopeSelector);\n return !re.test(selector);\n }\n _makeScopeMatcher(scopeSelector) {\n const lre = /\\[/g;\n const rre = /\\]/g;\n scopeSelector = scopeSelector.replace(lre, '\\\\[').replace(rre, '\\\\]');\n return new RegExp('^(' + scopeSelector + ')' + _selectorReSuffix, 'm');\n }\n _applySelectorScope(selector, scopeSelector, hostSelector) {\n // Difference from webcomponents.js: scopeSelector could not be an array\n return this._applySimpleSelectorScope(selector, scopeSelector, hostSelector);\n }\n // scope via name and [is=name]\n _applySimpleSelectorScope(selector, scopeSelector, hostSelector) {\n // In Android browser, the lastIndex is not reset when the regex is used in String.replace()\n _polyfillHostRe.lastIndex = 0;\n if (_polyfillHostRe.test(selector)) {\n const replaceBy = this.strictStyling ? `[${hostSelector}]` : scopeSelector;\n return selector\n .replace(_polyfillHostNoCombinatorRe, (hnc, selector) => {\n return selector.replace(/([^:]*)(:*)(.*)/, (_, before, colon, after) => {\n return before + replaceBy + colon + after;\n });\n })\n .replace(_polyfillHostRe, replaceBy + ' ');\n }\n return scopeSelector + ' ' + selector;\n }\n // return a selector with [name] suffix on each simple selector\n // e.g. .foo.bar > .zot becomes .foo[name].bar[name] > .zot[name] /** @internal */\n _applyStrictSelectorScope(selector, scopeSelector, hostSelector) {\n const isRe = /\\[is=([^\\]]*)\\]/g;\n scopeSelector = scopeSelector.replace(isRe, (_, ...parts) => parts[0]);\n const attrName = '[' + scopeSelector + ']';\n const _scopeSelectorPart = (p) => {\n let scopedP = p.trim();\n if (!scopedP) {\n return '';\n }\n if (p.indexOf(_polyfillHostNoCombinator) > -1) {\n scopedP = this._applySimpleSelectorScope(p, scopeSelector, hostSelector);\n }\n else {\n // remove :host since it should be unnecessary\n const t = p.replace(_polyfillHostRe, '');\n if (t.length > 0) {\n const matches = t.match(/([^:]*)(:*)(.*)/);\n if (matches) {\n scopedP = matches[1] + attrName + matches[2] + matches[3];\n }\n }\n }\n return scopedP;\n };\n const safeContent = new SafeSelector(selector);\n selector = safeContent.content();\n let scopedSelector = '';\n let startIndex = 0;\n let res;\n const sep = /( |>|\\+|~(?!=))\\s*/g;\n // If a selector appears before :host it should not be shimmed as it\n // matches on ancestor elements and not on elements in the host's shadow\n // `:host-context(div)` is transformed to\n // `-shadowcsshost-no-combinatordiv, div -shadowcsshost-no-combinator`\n // the `div` is not part of the component in the 2nd selectors and should not be scoped.\n // Historically `component-tag:host` was matching the component so we also want to preserve\n // this behavior to avoid breaking legacy apps (it should not match).\n // The behavior should be:\n // - `tag:host` -> `tag[h]` (this is to avoid breaking legacy apps, should not match anything)\n // - `tag :host` -> `tag [h]` (`tag` is not scoped because it's considered part of a\n // `:host-context(tag)`)\n const hasHost = selector.indexOf(_polyfillHostNoCombinator) > -1;\n // Only scope parts after the first `-shadowcsshost-no-combinator` when it is present\n let shouldScope = !hasHost;\n while ((res = sep.exec(selector)) !== null) {\n const separator = res[1];\n const part = selector.slice(startIndex, res.index).trim();\n shouldScope = shouldScope || part.indexOf(_polyfillHostNoCombinator) > -1;\n const scopedPart = shouldScope ? _scopeSelectorPart(part) : part;\n scopedSelector += `${scopedPart} ${separator} `;\n startIndex = sep.lastIndex;\n }\n const part = selector.substring(startIndex);\n shouldScope = shouldScope || part.indexOf(_polyfillHostNoCombinator) > -1;\n scopedSelector += shouldScope ? _scopeSelectorPart(part) : part;\n // replace the placeholders with their original values\n return safeContent.restore(scopedSelector);\n }\n _insertPolyfillHostInCssText(selector) {\n return selector.replace(_colonHostContextRe, _polyfillHostContext)\n .replace(_colonHostRe, _polyfillHost);\n }\n}\nclass SafeSelector {\n constructor(selector) {\n this.placeholders = [];\n this.index = 0;\n // Replaces attribute selectors with placeholders.\n // The WS in [attr=\"va lue\"] would otherwise be interpreted as a selector separator.\n selector = this._escapeRegexMatches(selector, /(\\[[^\\]]*\\])/g);\n // CSS allows for certain special characters to be used in selectors if they're escaped.\n // E.g. `.foo:blue` won't match a class called `foo:blue`, because the colon denotes a\n // pseudo-class, but writing `.foo\\:blue` will match, because the colon was escaped.\n // Replace all escape sequences (`\\` followed by a character) with a placeholder so\n // that our handling of pseudo-selectors doesn't mess with them.\n selector = this._escapeRegexMatches(selector, /(\\\\.)/g);\n // Replaces the expression in `:nth-child(2n + 1)` with a placeholder.\n // WS and \"+\" would otherwise be interpreted as selector separators.\n this._content = selector.replace(/(:nth-[-\\w]+)(\\([^)]+\\))/g, (_, pseudo, exp) => {\n const replaceBy = `__ph-${this.index}__`;\n this.placeholders.push(exp);\n this.index++;\n return pseudo + replaceBy;\n });\n }\n restore(content) {\n return content.replace(/__ph-(\\d+)__/g, (_ph, index) => this.placeholders[+index]);\n }\n content() {\n return this._content;\n }\n /**\n * Replaces all of the substrings that match a regex within a\n * special string (e.g. `__ph-0__`, `__ph-1__`, etc).\n */\n _escapeRegexMatches(content, pattern) {\n return content.replace(pattern, (_, keep) => {\n const replaceBy = `__ph-${this.index}__`;\n this.placeholders.push(keep);\n this.index++;\n return replaceBy;\n });\n }\n}\nconst _cssContentNextSelectorRe = /polyfill-next-selector[^}]*content:[\\s]*?(['\"])(.*?)\\1[;\\s]*}([^{]*?){/gim;\nconst _cssContentRuleRe = /(polyfill-rule)[^}]*(content:[\\s]*(['\"])(.*?)\\3)[;\\s]*[^}]*}/gim;\nconst _cssContentUnscopedRuleRe = /(polyfill-unscoped-rule)[^}]*(content:[\\s]*(['\"])(.*?)\\3)[;\\s]*[^}]*}/gim;\nconst _polyfillHost = '-shadowcsshost';\n// note: :host-context pre-processed to -shadowcsshostcontext.\nconst _polyfillHostContext = '-shadowcsscontext';\nconst _parenSuffix = ')(?:\\\\((' +\n '(?:\\\\([^)(]*\\\\)|[^)(]*)+?' +\n ')\\\\))?([^,{]*)';\nconst _cssColonHostRe = new RegExp('(' + _polyfillHost + _parenSuffix, 'gim');\nconst _cssColonHostContextRe = new RegExp('(' + _polyfillHostContext + _parenSuffix, 'gim');\nconst _polyfillHostNoCombinator = _polyfillHost + '-no-combinator';\nconst _polyfillHostNoCombinatorRe = /-shadowcsshost-no-combinator([^\\s]*)/;\nconst _shadowDOMSelectorsRe = [\n /::shadow/g,\n /::content/g,\n // Deprecated selectors\n /\\/shadow-deep\\//g,\n /\\/shadow\\//g,\n];\n// The deep combinator is deprecated in the CSS spec\n// Support for `>>>`, `deep`, `::ng-deep` is then also deprecated and will be removed in the future.\n// see https://github.com/angular/angular/pull/17677\nconst _shadowDeepSelectors = /(?:>>>)|(?:\\/deep\\/)|(?:::ng-deep)/g;\nconst _selectorReSuffix = '([>\\\\s~+\\[.,{:][\\\\s\\\\S]*)?$';\nconst _polyfillHostRe = /-shadowcsshost/gim;\nconst _colonHostRe = /:host/gim;\nconst _colonHostContextRe = /:host-context/gim;\nconst _commentRe = /\\/\\*\\s*[\\s\\S]*?\\*\\//g;\nfunction stripComments(input) {\n return input.replace(_commentRe, '');\n}\nconst _commentWithHashRe = /\\/\\*\\s*#\\s*source(Mapping)?URL=[\\s\\S]+?\\*\\//g;\nfunction extractCommentsWithHash(input) {\n return input.match(_commentWithHashRe) || [];\n}\nconst BLOCK_PLACEHOLDER = '%BLOCK%';\nconst QUOTE_PLACEHOLDER = '%QUOTED%';\nconst _ruleRe = /(\\s*)([^;\\{\\}]+?)(\\s*)((?:{%BLOCK%}?\\s*;?)|(?:\\s*;))/g;\nconst _quotedRe = /%QUOTED%/g;\nconst CONTENT_PAIRS = new Map([['{', '}']]);\nconst QUOTE_PAIRS = new Map([[`\"`, `\"`], [`'`, `'`]]);\nclass CssRule {\n constructor(selector, content) {\n this.selector = selector;\n this.content = content;\n }\n}\nfunction processRules(input, ruleCallback) {\n const inputWithEscapedQuotes = escapeBlocks(input, QUOTE_PAIRS, QUOTE_PLACEHOLDER);\n const inputWithEscapedBlocks = escapeBlocks(inputWithEscapedQuotes.escapedString, CONTENT_PAIRS, BLOCK_PLACEHOLDER);\n let nextBlockIndex = 0;\n let nextQuoteIndex = 0;\n return inputWithEscapedBlocks.escapedString\n .replace(_ruleRe, (...m) => {\n const selector = m[2];\n let content = '';\n let suffix = m[4];\n let contentPrefix = '';\n if (suffix && suffix.startsWith('{' + BLOCK_PLACEHOLDER)) {\n content = inputWithEscapedBlocks.blocks[nextBlockIndex++];\n suffix = suffix.substring(BLOCK_PLACEHOLDER.length + 1);\n contentPrefix = '{';\n }\n const rule = ruleCallback(new CssRule(selector, content));\n return `${m[1]}${rule.selector}${m[3]}${contentPrefix}${rule.content}${suffix}`;\n })\n .replace(_quotedRe, () => inputWithEscapedQuotes.blocks[nextQuoteIndex++]);\n}\nclass StringWithEscapedBlocks {\n constructor(escapedString, blocks) {\n this.escapedString = escapedString;\n this.blocks = blocks;\n }\n}\nfunction escapeBlocks(input, charPairs, placeholder) {\n const resultParts = [];\n const escapedBlocks = [];\n let openCharCount = 0;\n let nonBlockStartIndex = 0;\n let blockStartIndex = -1;\n let openChar;\n let closeChar;\n for (let i = 0; i < input.length; i++) {\n const char = input[i];\n if (char === '\\\\') {\n i++;\n }\n else if (char === closeChar) {\n openCharCount--;\n if (openCharCount === 0) {\n escapedBlocks.push(input.substring(blockStartIndex, i));\n resultParts.push(placeholder);\n nonBlockStartIndex = i;\n blockStartIndex = -1;\n openChar = closeChar = undefined;\n }\n }\n else if (char === openChar) {\n openCharCount++;\n }\n else if (openCharCount === 0 && charPairs.has(char)) {\n openChar = char;\n closeChar = charPairs.get(char);\n openCharCount = 1;\n blockStartIndex = i + 1;\n resultParts.push(input.substring(nonBlockStartIndex, blockStartIndex));\n }\n }\n if (blockStartIndex !== -1) {\n escapedBlocks.push(input.substring(blockStartIndex));\n resultParts.push(placeholder);\n }\n else {\n resultParts.push(input.substring(nonBlockStartIndex));\n }\n return new StringWithEscapedBlocks(resultParts.join(''), escapedBlocks);\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst COMPONENT_VARIABLE = '%COMP%';\nconst HOST_ATTR = `_nghost-${COMPONENT_VARIABLE}`;\nconst CONTENT_ATTR = `_ngcontent-${COMPONENT_VARIABLE}`;\nclass StylesCompileDependency {\n constructor(name, moduleUrl, setValue) {\n this.name = name;\n this.moduleUrl = moduleUrl;\n this.setValue = setValue;\n }\n}\nclass CompiledStylesheet {\n constructor(outputCtx, stylesVar, dependencies, isShimmed, meta) {\n this.outputCtx = outputCtx;\n this.stylesVar = stylesVar;\n this.dependencies = dependencies;\n this.isShimmed = isShimmed;\n this.meta = meta;\n }\n}\nclass StyleCompiler {\n constructor(_urlResolver) {\n this._urlResolver = _urlResolver;\n this._shadowCss = new ShadowCss();\n }\n compileComponent(outputCtx, comp) {\n const template = comp.template;\n return this._compileStyles(outputCtx, comp, new CompileStylesheetMetadata({\n styles: template.styles,\n styleUrls: template.styleUrls,\n moduleUrl: identifierModuleUrl(comp.type)\n }), this.needsStyleShim(comp), true);\n }\n compileStyles(outputCtx, comp, stylesheet, shim = this.needsStyleShim(comp)) {\n return this._compileStyles(outputCtx, comp, stylesheet, shim, false);\n }\n needsStyleShim(comp) {\n return comp.template.encapsulation === ViewEncapsulation.Emulated;\n }\n _compileStyles(outputCtx, comp, stylesheet, shim, isComponentStylesheet) {\n const styleExpressions = stylesheet.styles.map(plainStyle => literal(this._shimIfNeeded(plainStyle, shim)));\n const dependencies = [];\n stylesheet.styleUrls.forEach((styleUrl) => {\n const exprIndex = styleExpressions.length;\n // Note: This placeholder will be filled later.\n styleExpressions.push(null);\n dependencies.push(new StylesCompileDependency(getStylesVarName(null), styleUrl, (value) => styleExpressions[exprIndex] = outputCtx.importExpr(value)));\n });\n // styles variable contains plain strings and arrays of other styles arrays (recursive),\n // so we set its type to dynamic.\n const stylesVar = getStylesVarName(isComponentStylesheet ? comp : null);\n const stmt = variable(stylesVar)\n .set(literalArr(styleExpressions, new ArrayType(DYNAMIC_TYPE, [TypeModifier.Const])))\n .toDeclStmt(null, isComponentStylesheet ? [StmtModifier.Final] : [\n StmtModifier.Final, StmtModifier.Exported\n ]);\n outputCtx.statements.push(stmt);\n return new CompiledStylesheet(outputCtx, stylesVar, dependencies, shim, stylesheet);\n }\n _shimIfNeeded(style, shim) {\n return shim ? this._shadowCss.shimCssText(style, CONTENT_ATTR, HOST_ATTR) : style;\n }\n}\nfunction getStylesVarName(component) {\n let result = `styles`;\n if (component) {\n result += `_${identifierName(component.type)}`;\n }\n return result;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A path is an ordered set of elements. Typically a path is to a\n * particular offset in a source file. The head of the list is the top\n * most node. The tail is the node that contains the offset directly.\n *\n * For example, the expression `a + b + c` might have an ast that looks\n * like:\n * +\n * / \\\n * a +\n * / \\\n * b c\n *\n * The path to the node at offset 9 would be `['+' at 1-10, '+' at 7-10,\n * 'c' at 9-10]` and the path the node at offset 1 would be\n * `['+' at 1-10, 'a' at 1-2]`.\n */\nclass AstPath {\n constructor(path, position = -1) {\n this.path = path;\n this.position = position;\n }\n get empty() {\n return !this.path || !this.path.length;\n }\n get head() {\n return this.path[0];\n }\n get tail() {\n return this.path[this.path.length - 1];\n }\n parentOf(node) {\n return node && this.path[this.path.indexOf(node) - 1];\n }\n childOf(node) {\n return this.path[this.path.indexOf(node) + 1];\n }\n first(ctor) {\n for (let i = this.path.length - 1; i >= 0; i--) {\n let item = this.path[i];\n if (item instanceof ctor)\n return item;\n }\n }\n push(node) {\n this.path.push(node);\n }\n pop() {\n return this.path.pop();\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass NodeWithI18n {\n constructor(sourceSpan, i18n) {\n this.sourceSpan = sourceSpan;\n this.i18n = i18n;\n }\n}\nclass Text$3 extends NodeWithI18n {\n constructor(value, sourceSpan, i18n) {\n super(sourceSpan, i18n);\n this.value = value;\n }\n visit(visitor, context) {\n return visitor.visitText(this, context);\n }\n}\nclass Expansion extends NodeWithI18n {\n constructor(switchValue, type, cases, sourceSpan, switchValueSourceSpan, i18n) {\n super(sourceSpan, i18n);\n this.switchValue = switchValue;\n this.type = type;\n this.cases = cases;\n this.switchValueSourceSpan = switchValueSourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitExpansion(this, context);\n }\n}\nclass ExpansionCase {\n constructor(value, expression, sourceSpan, valueSourceSpan, expSourceSpan) {\n this.value = value;\n this.expression = expression;\n this.sourceSpan = sourceSpan;\n this.valueSourceSpan = valueSourceSpan;\n this.expSourceSpan = expSourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitExpansionCase(this, context);\n }\n}\nclass Attribute extends NodeWithI18n {\n constructor(name, value, sourceSpan, keySpan, valueSpan, i18n) {\n super(sourceSpan, i18n);\n this.name = name;\n this.value = value;\n this.keySpan = keySpan;\n this.valueSpan = valueSpan;\n }\n visit(visitor, context) {\n return visitor.visitAttribute(this, context);\n }\n}\nclass Element$1 extends NodeWithI18n {\n constructor(name, attrs, children, sourceSpan, startSourceSpan, endSourceSpan = null, i18n) {\n super(sourceSpan, i18n);\n this.name = name;\n this.attrs = attrs;\n this.children = children;\n this.startSourceSpan = startSourceSpan;\n this.endSourceSpan = endSourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitElement(this, context);\n }\n}\nclass Comment {\n constructor(value, sourceSpan) {\n this.value = value;\n this.sourceSpan = sourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitComment(this, context);\n }\n}\nfunction visitAll$1(visitor, nodes, context = null) {\n const result = [];\n const visit = visitor.visit ?\n (ast) => visitor.visit(ast, context) || ast.visit(visitor, context) :\n (ast) => ast.visit(visitor, context);\n nodes.forEach(ast => {\n const astResult = visit(ast);\n if (astResult) {\n result.push(astResult);\n }\n });\n return result;\n}\nclass RecursiveVisitor$1 {\n constructor() { }\n visitElement(ast, context) {\n this.visitChildren(context, visit => {\n visit(ast.attrs);\n visit(ast.children);\n });\n }\n visitAttribute(ast, context) { }\n visitText(ast, context) { }\n visitComment(ast, context) { }\n visitExpansion(ast, context) {\n return this.visitChildren(context, visit => {\n visit(ast.cases);\n });\n }\n visitExpansionCase(ast, context) { }\n visitChildren(context, cb) {\n let results = [];\n let t = this;\n function visit(children) {\n if (children)\n results.push(visitAll$1(t, children, context));\n }\n cb(visit);\n return Array.prototype.concat.apply([], results);\n }\n}\nfunction spanOf(ast) {\n const start = ast.sourceSpan.start.offset;\n let end = ast.sourceSpan.end.offset;\n if (ast instanceof Element$1) {\n if (ast.endSourceSpan) {\n end = ast.endSourceSpan.end.offset;\n }\n else if (ast.children && ast.children.length) {\n end = spanOf(ast.children[ast.children.length - 1]).end;\n }\n }\n return { start, end };\n}\nfunction findNode(nodes, position) {\n const path = [];\n const visitor = new class extends RecursiveVisitor$1 {\n visit(ast, context) {\n const span = spanOf(ast);\n if (span.start <= position && position < span.end) {\n path.push(ast);\n }\n else {\n // Returning a value here will result in the children being skipped.\n return true;\n }\n }\n };\n visitAll$1(visitor, nodes);\n return new AstPath(path, position);\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nvar TokenType;\n(function (TokenType) {\n TokenType[TokenType[\"TAG_OPEN_START\"] = 0] = \"TAG_OPEN_START\";\n TokenType[TokenType[\"TAG_OPEN_END\"] = 1] = \"TAG_OPEN_END\";\n TokenType[TokenType[\"TAG_OPEN_END_VOID\"] = 2] = \"TAG_OPEN_END_VOID\";\n TokenType[TokenType[\"TAG_CLOSE\"] = 3] = \"TAG_CLOSE\";\n TokenType[TokenType[\"INCOMPLETE_TAG_OPEN\"] = 4] = \"INCOMPLETE_TAG_OPEN\";\n TokenType[TokenType[\"TEXT\"] = 5] = \"TEXT\";\n TokenType[TokenType[\"ESCAPABLE_RAW_TEXT\"] = 6] = \"ESCAPABLE_RAW_TEXT\";\n TokenType[TokenType[\"RAW_TEXT\"] = 7] = \"RAW_TEXT\";\n TokenType[TokenType[\"COMMENT_START\"] = 8] = \"COMMENT_START\";\n TokenType[TokenType[\"COMMENT_END\"] = 9] = \"COMMENT_END\";\n TokenType[TokenType[\"CDATA_START\"] = 10] = \"CDATA_START\";\n TokenType[TokenType[\"CDATA_END\"] = 11] = \"CDATA_END\";\n TokenType[TokenType[\"ATTR_NAME\"] = 12] = \"ATTR_NAME\";\n TokenType[TokenType[\"ATTR_QUOTE\"] = 13] = \"ATTR_QUOTE\";\n TokenType[TokenType[\"ATTR_VALUE\"] = 14] = \"ATTR_VALUE\";\n TokenType[TokenType[\"DOC_TYPE\"] = 15] = \"DOC_TYPE\";\n TokenType[TokenType[\"EXPANSION_FORM_START\"] = 16] = \"EXPANSION_FORM_START\";\n TokenType[TokenType[\"EXPANSION_CASE_VALUE\"] = 17] = \"EXPANSION_CASE_VALUE\";\n TokenType[TokenType[\"EXPANSION_CASE_EXP_START\"] = 18] = \"EXPANSION_CASE_EXP_START\";\n TokenType[TokenType[\"EXPANSION_CASE_EXP_END\"] = 19] = \"EXPANSION_CASE_EXP_END\";\n TokenType[TokenType[\"EXPANSION_FORM_END\"] = 20] = \"EXPANSION_FORM_END\";\n TokenType[TokenType[\"EOF\"] = 21] = \"EOF\";\n})(TokenType || (TokenType = {}));\nclass Token {\n constructor(type, parts, sourceSpan) {\n this.type = type;\n this.parts = parts;\n this.sourceSpan = sourceSpan;\n }\n}\nclass TokenError extends ParseError {\n constructor(errorMsg, tokenType, span) {\n super(span, errorMsg);\n this.tokenType = tokenType;\n }\n}\nclass TokenizeResult {\n constructor(tokens, errors, nonNormalizedIcuExpressions) {\n this.tokens = tokens;\n this.errors = errors;\n this.nonNormalizedIcuExpressions = nonNormalizedIcuExpressions;\n }\n}\nfunction tokenize(source, url, getTagDefinition, options = {}) {\n const tokenizer = new _Tokenizer(new ParseSourceFile(source, url), getTagDefinition, options);\n tokenizer.tokenize();\n return new TokenizeResult(mergeTextTokens(tokenizer.tokens), tokenizer.errors, tokenizer.nonNormalizedIcuExpressions);\n}\nconst _CR_OR_CRLF_REGEXP = /\\r\\n?/g;\nfunction _unexpectedCharacterErrorMsg(charCode) {\n const char = charCode === $EOF ? 'EOF' : String.fromCharCode(charCode);\n return `Unexpected character \"${char}\"`;\n}\nfunction _unknownEntityErrorMsg(entitySrc) {\n return `Unknown entity \"${entitySrc}\" - use the \"&#;\" or \"&#x;\" syntax`;\n}\nfunction _unparsableEntityErrorMsg(type, entityStr) {\n return `Unable to parse entity \"${entityStr}\" - ${type} character reference entities must end with \";\"`;\n}\nvar CharacterReferenceType;\n(function (CharacterReferenceType) {\n CharacterReferenceType[\"HEX\"] = \"hexadecimal\";\n CharacterReferenceType[\"DEC\"] = \"decimal\";\n})(CharacterReferenceType || (CharacterReferenceType = {}));\nclass _ControlFlowError {\n constructor(error) {\n this.error = error;\n }\n}\n// See https://www.w3.org/TR/html51/syntax.html#writing-html-documents\nclass _Tokenizer {\n /**\n * @param _file The html source file being tokenized.\n * @param _getTagDefinition A function that will retrieve a tag definition for a given tag name.\n * @param options Configuration of the tokenization.\n */\n constructor(_file, _getTagDefinition, options) {\n this._getTagDefinition = _getTagDefinition;\n this._currentTokenStart = null;\n this._currentTokenType = null;\n this._expansionCaseStack = [];\n this._inInterpolation = false;\n this.tokens = [];\n this.errors = [];\n this.nonNormalizedIcuExpressions = [];\n this._tokenizeIcu = options.tokenizeExpansionForms || false;\n this._interpolationConfig = options.interpolationConfig || DEFAULT_INTERPOLATION_CONFIG;\n this._leadingTriviaCodePoints =\n options.leadingTriviaChars && options.leadingTriviaChars.map(c => c.codePointAt(0) || 0);\n const range = options.range || { endPos: _file.content.length, startPos: 0, startLine: 0, startCol: 0 };\n this._cursor = options.escapedString ? new EscapedCharacterCursor(_file, range) :\n new PlainCharacterCursor(_file, range);\n this._preserveLineEndings = options.preserveLineEndings || false;\n this._escapedString = options.escapedString || false;\n this._i18nNormalizeLineEndingsInICUs = options.i18nNormalizeLineEndingsInICUs || false;\n try {\n this._cursor.init();\n }\n catch (e) {\n this.handleError(e);\n }\n }\n _processCarriageReturns(content) {\n if (this._preserveLineEndings) {\n return content;\n }\n // https://www.w3.org/TR/html51/syntax.html#preprocessing-the-input-stream\n // In order to keep the original position in the source, we can not\n // pre-process it.\n // Instead CRs are processed right before instantiating the tokens.\n return content.replace(_CR_OR_CRLF_REGEXP, '\\n');\n }\n tokenize() {\n while (this._cursor.peek() !== $EOF) {\n const start = this._cursor.clone();\n try {\n if (this._attemptCharCode($LT)) {\n if (this._attemptCharCode($BANG)) {\n if (this._attemptCharCode($LBRACKET)) {\n this._consumeCdata(start);\n }\n else if (this._attemptCharCode($MINUS)) {\n this._consumeComment(start);\n }\n else {\n this._consumeDocType(start);\n }\n }\n else if (this._attemptCharCode($SLASH)) {\n this._consumeTagClose(start);\n }\n else {\n this._consumeTagOpen(start);\n }\n }\n else if (!(this._tokenizeIcu && this._tokenizeExpansionForm())) {\n this._consumeText();\n }\n }\n catch (e) {\n this.handleError(e);\n }\n }\n this._beginToken(TokenType.EOF);\n this._endToken([]);\n }\n /**\n * @returns whether an ICU token has been created\n * @internal\n */\n _tokenizeExpansionForm() {\n if (this.isExpansionFormStart()) {\n this._consumeExpansionFormStart();\n return true;\n }\n if (isExpansionCaseStart(this._cursor.peek()) && this._isInExpansionForm()) {\n this._consumeExpansionCaseStart();\n return true;\n }\n if (this._cursor.peek() === $RBRACE) {\n if (this._isInExpansionCase()) {\n this._consumeExpansionCaseEnd();\n return true;\n }\n if (this._isInExpansionForm()) {\n this._consumeExpansionFormEnd();\n return true;\n }\n }\n return false;\n }\n _beginToken(type, start = this._cursor.clone()) {\n this._currentTokenStart = start;\n this._currentTokenType = type;\n }\n _endToken(parts, end) {\n if (this._currentTokenStart === null) {\n throw new TokenError('Programming error - attempted to end a token when there was no start to the token', this._currentTokenType, this._cursor.getSpan(end));\n }\n if (this._currentTokenType === null) {\n throw new TokenError('Programming error - attempted to end a token which has no token type', null, this._cursor.getSpan(this._currentTokenStart));\n }\n const token = new Token(this._currentTokenType, parts, this._cursor.getSpan(this._currentTokenStart, this._leadingTriviaCodePoints));\n this.tokens.push(token);\n this._currentTokenStart = null;\n this._currentTokenType = null;\n return token;\n }\n _createError(msg, span) {\n if (this._isInExpansionForm()) {\n msg += ` (Do you have an unescaped \"{\" in your template? Use \"{{ '{' }}\") to escape it.)`;\n }\n const error = new TokenError(msg, this._currentTokenType, span);\n this._currentTokenStart = null;\n this._currentTokenType = null;\n return new _ControlFlowError(error);\n }\n handleError(e) {\n if (e instanceof CursorError) {\n e = this._createError(e.msg, this._cursor.getSpan(e.cursor));\n }\n if (e instanceof _ControlFlowError) {\n this.errors.push(e.error);\n }\n else {\n throw e;\n }\n }\n _attemptCharCode(charCode) {\n if (this._cursor.peek() === charCode) {\n this._cursor.advance();\n return true;\n }\n return false;\n }\n _attemptCharCodeCaseInsensitive(charCode) {\n if (compareCharCodeCaseInsensitive(this._cursor.peek(), charCode)) {\n this._cursor.advance();\n return true;\n }\n return false;\n }\n _requireCharCode(charCode) {\n const location = this._cursor.clone();\n if (!this._attemptCharCode(charCode)) {\n throw this._createError(_unexpectedCharacterErrorMsg(this._cursor.peek()), this._cursor.getSpan(location));\n }\n }\n _attemptStr(chars) {\n const len = chars.length;\n if (this._cursor.charsLeft() < len) {\n return false;\n }\n const initialPosition = this._cursor.clone();\n for (let i = 0; i < len; i++) {\n if (!this._attemptCharCode(chars.charCodeAt(i))) {\n // If attempting to parse the string fails, we want to reset the parser\n // to where it was before the attempt\n this._cursor = initialPosition;\n return false;\n }\n }\n return true;\n }\n _attemptStrCaseInsensitive(chars) {\n for (let i = 0; i < chars.length; i++) {\n if (!this._attemptCharCodeCaseInsensitive(chars.charCodeAt(i))) {\n return false;\n }\n }\n return true;\n }\n _requireStr(chars) {\n const location = this._cursor.clone();\n if (!this._attemptStr(chars)) {\n throw this._createError(_unexpectedCharacterErrorMsg(this._cursor.peek()), this._cursor.getSpan(location));\n }\n }\n _attemptCharCodeUntilFn(predicate) {\n while (!predicate(this._cursor.peek())) {\n this._cursor.advance();\n }\n }\n _requireCharCodeUntilFn(predicate, len) {\n const start = this._cursor.clone();\n this._attemptCharCodeUntilFn(predicate);\n if (this._cursor.diff(start) < len) {\n throw this._createError(_unexpectedCharacterErrorMsg(this._cursor.peek()), this._cursor.getSpan(start));\n }\n }\n _attemptUntilChar(char) {\n while (this._cursor.peek() !== char) {\n this._cursor.advance();\n }\n }\n _readChar(decodeEntities) {\n if (decodeEntities && this._cursor.peek() === $AMPERSAND) {\n return this._decodeEntity();\n }\n else {\n // Don't rely upon reading directly from `_input` as the actual char value\n // may have been generated from an escape sequence.\n const char = String.fromCodePoint(this._cursor.peek());\n this._cursor.advance();\n return char;\n }\n }\n _decodeEntity() {\n const start = this._cursor.clone();\n this._cursor.advance();\n if (this._attemptCharCode($HASH)) {\n const isHex = this._attemptCharCode($x) || this._attemptCharCode($X);\n const codeStart = this._cursor.clone();\n this._attemptCharCodeUntilFn(isDigitEntityEnd);\n if (this._cursor.peek() != $SEMICOLON) {\n // Advance cursor to include the peeked character in the string provided to the error\n // message.\n this._cursor.advance();\n const entityType = isHex ? CharacterReferenceType.HEX : CharacterReferenceType.DEC;\n throw this._createError(_unparsableEntityErrorMsg(entityType, this._cursor.getChars(start)), this._cursor.getSpan());\n }\n const strNum = this._cursor.getChars(codeStart);\n this._cursor.advance();\n try {\n const charCode = parseInt(strNum, isHex ? 16 : 10);\n return String.fromCharCode(charCode);\n }\n catch (_a) {\n throw this._createError(_unknownEntityErrorMsg(this._cursor.getChars(start)), this._cursor.getSpan());\n }\n }\n else {\n const nameStart = this._cursor.clone();\n this._attemptCharCodeUntilFn(isNamedEntityEnd);\n if (this._cursor.peek() != $SEMICOLON) {\n this._cursor = nameStart;\n return '&';\n }\n const name = this._cursor.getChars(nameStart);\n this._cursor.advance();\n const char = NAMED_ENTITIES[name];\n if (!char) {\n throw this._createError(_unknownEntityErrorMsg(name), this._cursor.getSpan(start));\n }\n return char;\n }\n }\n _consumeRawText(decodeEntities, endMarkerPredicate) {\n this._beginToken(decodeEntities ? TokenType.ESCAPABLE_RAW_TEXT : TokenType.RAW_TEXT);\n const parts = [];\n while (true) {\n const tagCloseStart = this._cursor.clone();\n const foundEndMarker = endMarkerPredicate();\n this._cursor = tagCloseStart;\n if (foundEndMarker) {\n break;\n }\n parts.push(this._readChar(decodeEntities));\n }\n return this._endToken([this._processCarriageReturns(parts.join(''))]);\n }\n _consumeComment(start) {\n this._beginToken(TokenType.COMMENT_START, start);\n this._requireCharCode($MINUS);\n this._endToken([]);\n this._consumeRawText(false, () => this._attemptStr('-->'));\n this._beginToken(TokenType.COMMENT_END);\n this._requireStr('-->');\n this._endToken([]);\n }\n _consumeCdata(start) {\n this._beginToken(TokenType.CDATA_START, start);\n this._requireStr('CDATA[');\n this._endToken([]);\n this._consumeRawText(false, () => this._attemptStr(']]>'));\n this._beginToken(TokenType.CDATA_END);\n this._requireStr(']]>');\n this._endToken([]);\n }\n _consumeDocType(start) {\n this._beginToken(TokenType.DOC_TYPE, start);\n const contentStart = this._cursor.clone();\n this._attemptUntilChar($GT);\n const content = this._cursor.getChars(contentStart);\n this._cursor.advance();\n this._endToken([content]);\n }\n _consumePrefixAndName() {\n const nameOrPrefixStart = this._cursor.clone();\n let prefix = '';\n while (this._cursor.peek() !== $COLON && !isPrefixEnd(this._cursor.peek())) {\n this._cursor.advance();\n }\n let nameStart;\n if (this._cursor.peek() === $COLON) {\n prefix = this._cursor.getChars(nameOrPrefixStart);\n this._cursor.advance();\n nameStart = this._cursor.clone();\n }\n else {\n nameStart = nameOrPrefixStart;\n }\n this._requireCharCodeUntilFn(isNameEnd, prefix === '' ? 0 : 1);\n const name = this._cursor.getChars(nameStart);\n return [prefix, name];\n }\n _consumeTagOpen(start) {\n let tagName;\n let prefix;\n let openTagToken;\n try {\n if (!isAsciiLetter(this._cursor.peek())) {\n throw this._createError(_unexpectedCharacterErrorMsg(this._cursor.peek()), this._cursor.getSpan(start));\n }\n openTagToken = this._consumeTagOpenStart(start);\n prefix = openTagToken.parts[0];\n tagName = openTagToken.parts[1];\n this._attemptCharCodeUntilFn(isNotWhitespace);\n while (this._cursor.peek() !== $SLASH && this._cursor.peek() !== $GT &&\n this._cursor.peek() !== $LT) {\n this._consumeAttributeName();\n this._attemptCharCodeUntilFn(isNotWhitespace);\n if (this._attemptCharCode($EQ)) {\n this._attemptCharCodeUntilFn(isNotWhitespace);\n this._consumeAttributeValue();\n }\n this._attemptCharCodeUntilFn(isNotWhitespace);\n }\n this._consumeTagOpenEnd();\n }\n catch (e) {\n if (e instanceof _ControlFlowError) {\n if (openTagToken) {\n // We errored before we could close the opening tag, so it is incomplete.\n openTagToken.type = TokenType.INCOMPLETE_TAG_OPEN;\n }\n else {\n // When the start tag is invalid, assume we want a \"<\" as text.\n // Back to back text tokens are merged at the end.\n this._beginToken(TokenType.TEXT, start);\n this._endToken(['<']);\n }\n return;\n }\n throw e;\n }\n const contentTokenType = this._getTagDefinition(tagName).getContentType(prefix);\n if (contentTokenType === TagContentType.RAW_TEXT) {\n this._consumeRawTextWithTagClose(prefix, tagName, false);\n }\n else if (contentTokenType === TagContentType.ESCAPABLE_RAW_TEXT) {\n this._consumeRawTextWithTagClose(prefix, tagName, true);\n }\n }\n _consumeRawTextWithTagClose(prefix, tagName, decodeEntities) {\n this._consumeRawText(decodeEntities, () => {\n if (!this._attemptCharCode($LT))\n return false;\n if (!this._attemptCharCode($SLASH))\n return false;\n this._attemptCharCodeUntilFn(isNotWhitespace);\n if (!this._attemptStrCaseInsensitive(tagName))\n return false;\n this._attemptCharCodeUntilFn(isNotWhitespace);\n return this._attemptCharCode($GT);\n });\n this._beginToken(TokenType.TAG_CLOSE);\n this._requireCharCodeUntilFn(code => code === $GT, 3);\n this._cursor.advance(); // Consume the `>`\n this._endToken([prefix, tagName]);\n }\n _consumeTagOpenStart(start) {\n this._beginToken(TokenType.TAG_OPEN_START, start);\n const parts = this._consumePrefixAndName();\n return this._endToken(parts);\n }\n _consumeAttributeName() {\n const attrNameStart = this._cursor.peek();\n if (attrNameStart === $SQ || attrNameStart === $DQ) {\n throw this._createError(_unexpectedCharacterErrorMsg(attrNameStart), this._cursor.getSpan());\n }\n this._beginToken(TokenType.ATTR_NAME);\n const prefixAndName = this._consumePrefixAndName();\n this._endToken(prefixAndName);\n }\n _consumeAttributeValue() {\n let value;\n if (this._cursor.peek() === $SQ || this._cursor.peek() === $DQ) {\n this._beginToken(TokenType.ATTR_QUOTE);\n const quoteChar = this._cursor.peek();\n this._cursor.advance();\n this._endToken([String.fromCodePoint(quoteChar)]);\n this._beginToken(TokenType.ATTR_VALUE);\n const parts = [];\n while (this._cursor.peek() !== quoteChar) {\n parts.push(this._readChar(true));\n }\n value = parts.join('');\n this._endToken([this._processCarriageReturns(value)]);\n this._beginToken(TokenType.ATTR_QUOTE);\n this._cursor.advance();\n this._endToken([String.fromCodePoint(quoteChar)]);\n }\n else {\n this._beginToken(TokenType.ATTR_VALUE);\n const valueStart = this._cursor.clone();\n this._requireCharCodeUntilFn(isNameEnd, 1);\n value = this._cursor.getChars(valueStart);\n this._endToken([this._processCarriageReturns(value)]);\n }\n }\n _consumeTagOpenEnd() {\n const tokenType = this._attemptCharCode($SLASH) ? TokenType.TAG_OPEN_END_VOID : TokenType.TAG_OPEN_END;\n this._beginToken(tokenType);\n this._requireCharCode($GT);\n this._endToken([]);\n }\n _consumeTagClose(start) {\n this._beginToken(TokenType.TAG_CLOSE, start);\n this._attemptCharCodeUntilFn(isNotWhitespace);\n const prefixAndName = this._consumePrefixAndName();\n this._attemptCharCodeUntilFn(isNotWhitespace);\n this._requireCharCode($GT);\n this._endToken(prefixAndName);\n }\n _consumeExpansionFormStart() {\n this._beginToken(TokenType.EXPANSION_FORM_START);\n this._requireCharCode($LBRACE);\n this._endToken([]);\n this._expansionCaseStack.push(TokenType.EXPANSION_FORM_START);\n this._beginToken(TokenType.RAW_TEXT);\n const condition = this._readUntil($COMMA);\n const normalizedCondition = this._processCarriageReturns(condition);\n if (this._i18nNormalizeLineEndingsInICUs) {\n // We explicitly want to normalize line endings for this text.\n this._endToken([normalizedCondition]);\n }\n else {\n // We are not normalizing line endings.\n const conditionToken = this._endToken([condition]);\n if (normalizedCondition !== condition) {\n this.nonNormalizedIcuExpressions.push(conditionToken);\n }\n }\n this._requireCharCode($COMMA);\n this._attemptCharCodeUntilFn(isNotWhitespace);\n this._beginToken(TokenType.RAW_TEXT);\n const type = this._readUntil($COMMA);\n this._endToken([type]);\n this._requireCharCode($COMMA);\n this._attemptCharCodeUntilFn(isNotWhitespace);\n }\n _consumeExpansionCaseStart() {\n this._beginToken(TokenType.EXPANSION_CASE_VALUE);\n const value = this._readUntil($LBRACE).trim();\n this._endToken([value]);\n this._attemptCharCodeUntilFn(isNotWhitespace);\n this._beginToken(TokenType.EXPANSION_CASE_EXP_START);\n this._requireCharCode($LBRACE);\n this._endToken([]);\n this._attemptCharCodeUntilFn(isNotWhitespace);\n this._expansionCaseStack.push(TokenType.EXPANSION_CASE_EXP_START);\n }\n _consumeExpansionCaseEnd() {\n this._beginToken(TokenType.EXPANSION_CASE_EXP_END);\n this._requireCharCode($RBRACE);\n this._endToken([]);\n this._attemptCharCodeUntilFn(isNotWhitespace);\n this._expansionCaseStack.pop();\n }\n _consumeExpansionFormEnd() {\n this._beginToken(TokenType.EXPANSION_FORM_END);\n this._requireCharCode($RBRACE);\n this._endToken([]);\n this._expansionCaseStack.pop();\n }\n _consumeText() {\n const start = this._cursor.clone();\n this._beginToken(TokenType.TEXT, start);\n const parts = [];\n do {\n if (this._interpolationConfig && this._attemptStr(this._interpolationConfig.start)) {\n parts.push(this._interpolationConfig.start);\n this._inInterpolation = true;\n }\n else if (this._interpolationConfig && this._inInterpolation &&\n this._attemptStr(this._interpolationConfig.end)) {\n parts.push(this._interpolationConfig.end);\n this._inInterpolation = false;\n }\n else {\n parts.push(this._readChar(true));\n }\n } while (!this._isTextEnd());\n this._endToken([this._processCarriageReturns(parts.join(''))]);\n }\n _isTextEnd() {\n if (this._cursor.peek() === $LT || this._cursor.peek() === $EOF) {\n return true;\n }\n if (this._tokenizeIcu && !this._inInterpolation) {\n if (this.isExpansionFormStart()) {\n // start of an expansion form\n return true;\n }\n if (this._cursor.peek() === $RBRACE && this._isInExpansionCase()) {\n // end of and expansion case\n return true;\n }\n }\n return false;\n }\n _readUntil(char) {\n const start = this._cursor.clone();\n this._attemptUntilChar(char);\n return this._cursor.getChars(start);\n }\n _isInExpansionCase() {\n return this._expansionCaseStack.length > 0 &&\n this._expansionCaseStack[this._expansionCaseStack.length - 1] ===\n TokenType.EXPANSION_CASE_EXP_START;\n }\n _isInExpansionForm() {\n return this._expansionCaseStack.length > 0 &&\n this._expansionCaseStack[this._expansionCaseStack.length - 1] ===\n TokenType.EXPANSION_FORM_START;\n }\n isExpansionFormStart() {\n if (this._cursor.peek() !== $LBRACE) {\n return false;\n }\n if (this._interpolationConfig) {\n const start = this._cursor.clone();\n const isInterpolation = this._attemptStr(this._interpolationConfig.start);\n this._cursor = start;\n return !isInterpolation;\n }\n return true;\n }\n}\nfunction isNotWhitespace(code) {\n return !isWhitespace(code) || code === $EOF;\n}\nfunction isNameEnd(code) {\n return isWhitespace(code) || code === $GT || code === $LT ||\n code === $SLASH || code === $SQ || code === $DQ || code === $EQ;\n}\nfunction isPrefixEnd(code) {\n return (code < $a || $z < code) && (code < $A || $Z < code) &&\n (code < $0 || code > $9);\n}\nfunction isDigitEntityEnd(code) {\n return code == $SEMICOLON || code == $EOF || !isAsciiHexDigit(code);\n}\nfunction isNamedEntityEnd(code) {\n return code == $SEMICOLON || code == $EOF || !isAsciiLetter(code);\n}\nfunction isExpansionCaseStart(peek) {\n return peek !== $RBRACE;\n}\nfunction compareCharCodeCaseInsensitive(code1, code2) {\n return toUpperCaseCharCode(code1) == toUpperCaseCharCode(code2);\n}\nfunction toUpperCaseCharCode(code) {\n return code >= $a && code <= $z ? code - $a + $A : code;\n}\nfunction mergeTextTokens(srcTokens) {\n const dstTokens = [];\n let lastDstToken = undefined;\n for (let i = 0; i < srcTokens.length; i++) {\n const token = srcTokens[i];\n if (lastDstToken && lastDstToken.type == TokenType.TEXT && token.type == TokenType.TEXT) {\n lastDstToken.parts[0] += token.parts[0];\n lastDstToken.sourceSpan.end = token.sourceSpan.end;\n }\n else {\n lastDstToken = token;\n dstTokens.push(lastDstToken);\n }\n }\n return dstTokens;\n}\nclass PlainCharacterCursor {\n constructor(fileOrCursor, range) {\n if (fileOrCursor instanceof PlainCharacterCursor) {\n this.file = fileOrCursor.file;\n this.input = fileOrCursor.input;\n this.end = fileOrCursor.end;\n const state = fileOrCursor.state;\n // Note: avoid using `{...fileOrCursor.state}` here as that has a severe performance penalty.\n // In ES5 bundles the object spread operator is translated into the `__assign` helper, which\n // is not optimized by VMs as efficiently as a raw object literal. Since this constructor is\n // called in tight loops, this difference matters.\n this.state = {\n peek: state.peek,\n offset: state.offset,\n line: state.line,\n column: state.column,\n };\n }\n else {\n if (!range) {\n throw new Error('Programming error: the range argument must be provided with a file argument.');\n }\n this.file = fileOrCursor;\n this.input = fileOrCursor.content;\n this.end = range.endPos;\n this.state = {\n peek: -1,\n offset: range.startPos,\n line: range.startLine,\n column: range.startCol,\n };\n }\n }\n clone() {\n return new PlainCharacterCursor(this);\n }\n peek() {\n return this.state.peek;\n }\n charsLeft() {\n return this.end - this.state.offset;\n }\n diff(other) {\n return this.state.offset - other.state.offset;\n }\n advance() {\n this.advanceState(this.state);\n }\n init() {\n this.updatePeek(this.state);\n }\n getSpan(start, leadingTriviaCodePoints) {\n start = start || this;\n let fullStart = start;\n if (leadingTriviaCodePoints) {\n while (this.diff(start) > 0 && leadingTriviaCodePoints.indexOf(start.peek()) !== -1) {\n if (fullStart === start) {\n start = start.clone();\n }\n start.advance();\n }\n }\n const startLocation = this.locationFromCursor(start);\n const endLocation = this.locationFromCursor(this);\n const fullStartLocation = fullStart !== start ? this.locationFromCursor(fullStart) : startLocation;\n return new ParseSourceSpan(startLocation, endLocation, fullStartLocation);\n }\n getChars(start) {\n return this.input.substring(start.state.offset, this.state.offset);\n }\n charAt(pos) {\n return this.input.charCodeAt(pos);\n }\n advanceState(state) {\n if (state.offset >= this.end) {\n this.state = state;\n throw new CursorError('Unexpected character \"EOF\"', this);\n }\n const currentChar = this.charAt(state.offset);\n if (currentChar === $LF) {\n state.line++;\n state.column = 0;\n }\n else if (!isNewLine(currentChar)) {\n state.column++;\n }\n state.offset++;\n this.updatePeek(state);\n }\n updatePeek(state) {\n state.peek = state.offset >= this.end ? $EOF : this.charAt(state.offset);\n }\n locationFromCursor(cursor) {\n return new ParseLocation(cursor.file, cursor.state.offset, cursor.state.line, cursor.state.column);\n }\n}\nclass EscapedCharacterCursor extends PlainCharacterCursor {\n constructor(fileOrCursor, range) {\n if (fileOrCursor instanceof EscapedCharacterCursor) {\n super(fileOrCursor);\n this.internalState = Object.assign({}, fileOrCursor.internalState);\n }\n else {\n super(fileOrCursor, range);\n this.internalState = this.state;\n }\n }\n advance() {\n this.state = this.internalState;\n super.advance();\n this.processEscapeSequence();\n }\n init() {\n super.init();\n this.processEscapeSequence();\n }\n clone() {\n return new EscapedCharacterCursor(this);\n }\n getChars(start) {\n const cursor = start.clone();\n let chars = '';\n while (cursor.internalState.offset < this.internalState.offset) {\n chars += String.fromCodePoint(cursor.peek());\n cursor.advance();\n }\n return chars;\n }\n /**\n * Process the escape sequence that starts at the current position in the text.\n *\n * This method is called to ensure that `peek` has the unescaped value of escape sequences.\n */\n processEscapeSequence() {\n const peek = () => this.internalState.peek;\n if (peek() === $BACKSLASH) {\n // We have hit an escape sequence so we need the internal state to become independent\n // of the external state.\n this.internalState = Object.assign({}, this.state);\n // Move past the backslash\n this.advanceState(this.internalState);\n // First check for standard control char sequences\n if (peek() === $n) {\n this.state.peek = $LF;\n }\n else if (peek() === $r) {\n this.state.peek = $CR;\n }\n else if (peek() === $v) {\n this.state.peek = $VTAB;\n }\n else if (peek() === $t) {\n this.state.peek = $TAB;\n }\n else if (peek() === $b) {\n this.state.peek = $BSPACE;\n }\n else if (peek() === $f) {\n this.state.peek = $FF;\n }\n // Now consider more complex sequences\n else if (peek() === $u) {\n // Unicode code-point sequence\n this.advanceState(this.internalState); // advance past the `u` char\n if (peek() === $LBRACE) {\n // Variable length Unicode, e.g. `\\x{123}`\n this.advanceState(this.internalState); // advance past the `{` char\n // Advance past the variable number of hex digits until we hit a `}` char\n const digitStart = this.clone();\n let length = 0;\n while (peek() !== $RBRACE) {\n this.advanceState(this.internalState);\n length++;\n }\n this.state.peek = this.decodeHexDigits(digitStart, length);\n }\n else {\n // Fixed length Unicode, e.g. `\\u1234`\n const digitStart = this.clone();\n this.advanceState(this.internalState);\n this.advanceState(this.internalState);\n this.advanceState(this.internalState);\n this.state.peek = this.decodeHexDigits(digitStart, 4);\n }\n }\n else if (peek() === $x) {\n // Hex char code, e.g. `\\x2F`\n this.advanceState(this.internalState); // advance past the `x` char\n const digitStart = this.clone();\n this.advanceState(this.internalState);\n this.state.peek = this.decodeHexDigits(digitStart, 2);\n }\n else if (isOctalDigit(peek())) {\n // Octal char code, e.g. `\\012`,\n let octal = '';\n let length = 0;\n let previous = this.clone();\n while (isOctalDigit(peek()) && length < 3) {\n previous = this.clone();\n octal += String.fromCodePoint(peek());\n this.advanceState(this.internalState);\n length++;\n }\n this.state.peek = parseInt(octal, 8);\n // Backup one char\n this.internalState = previous.internalState;\n }\n else if (isNewLine(this.internalState.peek)) {\n // Line continuation `\\` followed by a new line\n this.advanceState(this.internalState); // advance over the newline\n this.state = this.internalState;\n }\n else {\n // If none of the `if` blocks were executed then we just have an escaped normal character.\n // In that case we just, effectively, skip the backslash from the character.\n this.state.peek = this.internalState.peek;\n }\n }\n }\n decodeHexDigits(start, length) {\n const hex = this.input.substr(start.internalState.offset, length);\n const charCode = parseInt(hex, 16);\n if (!isNaN(charCode)) {\n return charCode;\n }\n else {\n start.state = start.internalState;\n throw new CursorError('Invalid hexadecimal escape sequence', start);\n }\n }\n}\nclass CursorError {\n constructor(msg, cursor) {\n this.msg = msg;\n this.cursor = cursor;\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass TreeError extends ParseError {\n constructor(elementName, span, msg) {\n super(span, msg);\n this.elementName = elementName;\n }\n static create(elementName, span, msg) {\n return new TreeError(elementName, span, msg);\n }\n}\nclass ParseTreeResult {\n constructor(rootNodes, errors) {\n this.rootNodes = rootNodes;\n this.errors = errors;\n }\n}\nclass Parser {\n constructor(getTagDefinition) {\n this.getTagDefinition = getTagDefinition;\n }\n parse(source, url, options) {\n const tokenizeResult = tokenize(source, url, this.getTagDefinition, options);\n const parser = new _TreeBuilder(tokenizeResult.tokens, this.getTagDefinition);\n parser.build();\n return new ParseTreeResult(parser.rootNodes, tokenizeResult.errors.concat(parser.errors));\n }\n}\nclass _TreeBuilder {\n constructor(tokens, getTagDefinition) {\n this.tokens = tokens;\n this.getTagDefinition = getTagDefinition;\n this._index = -1;\n this._elementStack = [];\n this.rootNodes = [];\n this.errors = [];\n this._advance();\n }\n build() {\n while (this._peek.type !== TokenType.EOF) {\n if (this._peek.type === TokenType.TAG_OPEN_START ||\n this._peek.type === TokenType.INCOMPLETE_TAG_OPEN) {\n this._consumeStartTag(this._advance());\n }\n else if (this._peek.type === TokenType.TAG_CLOSE) {\n this._consumeEndTag(this._advance());\n }\n else if (this._peek.type === TokenType.CDATA_START) {\n this._closeVoidElement();\n this._consumeCdata(this._advance());\n }\n else if (this._peek.type === TokenType.COMMENT_START) {\n this._closeVoidElement();\n this._consumeComment(this._advance());\n }\n else if (this._peek.type === TokenType.TEXT || this._peek.type === TokenType.RAW_TEXT ||\n this._peek.type === TokenType.ESCAPABLE_RAW_TEXT) {\n this._closeVoidElement();\n this._consumeText(this._advance());\n }\n else if (this._peek.type === TokenType.EXPANSION_FORM_START) {\n this._consumeExpansion(this._advance());\n }\n else {\n // Skip all other tokens...\n this._advance();\n }\n }\n }\n _advance() {\n const prev = this._peek;\n if (this._index < this.tokens.length - 1) {\n // Note: there is always an EOF token at the end\n this._index++;\n }\n this._peek = this.tokens[this._index];\n return prev;\n }\n _advanceIf(type) {\n if (this._peek.type === type) {\n return this._advance();\n }\n return null;\n }\n _consumeCdata(_startToken) {\n this._consumeText(this._advance());\n this._advanceIf(TokenType.CDATA_END);\n }\n _consumeComment(token) {\n const text = this._advanceIf(TokenType.RAW_TEXT);\n this._advanceIf(TokenType.COMMENT_END);\n const value = text != null ? text.parts[0].trim() : null;\n this._addToParent(new Comment(value, token.sourceSpan));\n }\n _consumeExpansion(token) {\n const switchValue = this._advance();\n const type = this._advance();\n const cases = [];\n // read =\n while (this._peek.type === TokenType.EXPANSION_CASE_VALUE) {\n const expCase = this._parseExpansionCase();\n if (!expCase)\n return; // error\n cases.push(expCase);\n }\n // read the final }\n if (this._peek.type !== TokenType.EXPANSION_FORM_END) {\n this.errors.push(TreeError.create(null, this._peek.sourceSpan, `Invalid ICU message. Missing '}'.`));\n return;\n }\n const sourceSpan = new ParseSourceSpan(token.sourceSpan.start, this._peek.sourceSpan.end, token.sourceSpan.fullStart);\n this._addToParent(new Expansion(switchValue.parts[0], type.parts[0], cases, sourceSpan, switchValue.sourceSpan));\n this._advance();\n }\n _parseExpansionCase() {\n const value = this._advance();\n // read {\n if (this._peek.type !== TokenType.EXPANSION_CASE_EXP_START) {\n this.errors.push(TreeError.create(null, this._peek.sourceSpan, `Invalid ICU message. Missing '{'.`));\n return null;\n }\n // read until }\n const start = this._advance();\n const exp = this._collectExpansionExpTokens(start);\n if (!exp)\n return null;\n const end = this._advance();\n exp.push(new Token(TokenType.EOF, [], end.sourceSpan));\n // parse everything in between { and }\n const expansionCaseParser = new _TreeBuilder(exp, this.getTagDefinition);\n expansionCaseParser.build();\n if (expansionCaseParser.errors.length > 0) {\n this.errors = this.errors.concat(expansionCaseParser.errors);\n return null;\n }\n const sourceSpan = new ParseSourceSpan(value.sourceSpan.start, end.sourceSpan.end, value.sourceSpan.fullStart);\n const expSourceSpan = new ParseSourceSpan(start.sourceSpan.start, end.sourceSpan.end, start.sourceSpan.fullStart);\n return new ExpansionCase(value.parts[0], expansionCaseParser.rootNodes, sourceSpan, value.sourceSpan, expSourceSpan);\n }\n _collectExpansionExpTokens(start) {\n const exp = [];\n const expansionFormStack = [TokenType.EXPANSION_CASE_EXP_START];\n while (true) {\n if (this._peek.type === TokenType.EXPANSION_FORM_START ||\n this._peek.type === TokenType.EXPANSION_CASE_EXP_START) {\n expansionFormStack.push(this._peek.type);\n }\n if (this._peek.type === TokenType.EXPANSION_CASE_EXP_END) {\n if (lastOnStack(expansionFormStack, TokenType.EXPANSION_CASE_EXP_START)) {\n expansionFormStack.pop();\n if (expansionFormStack.length == 0)\n return exp;\n }\n else {\n this.errors.push(TreeError.create(null, start.sourceSpan, `Invalid ICU message. Missing '}'.`));\n return null;\n }\n }\n if (this._peek.type === TokenType.EXPANSION_FORM_END) {\n if (lastOnStack(expansionFormStack, TokenType.EXPANSION_FORM_START)) {\n expansionFormStack.pop();\n }\n else {\n this.errors.push(TreeError.create(null, start.sourceSpan, `Invalid ICU message. Missing '}'.`));\n return null;\n }\n }\n if (this._peek.type === TokenType.EOF) {\n this.errors.push(TreeError.create(null, start.sourceSpan, `Invalid ICU message. Missing '}'.`));\n return null;\n }\n exp.push(this._advance());\n }\n }\n _consumeText(token) {\n let text = token.parts[0];\n if (text.length > 0 && text[0] == '\\n') {\n const parent = this._getParentElement();\n if (parent != null && parent.children.length == 0 &&\n this.getTagDefinition(parent.name).ignoreFirstLf) {\n text = text.substring(1);\n }\n }\n if (text.length > 0) {\n this._addToParent(new Text$3(text, token.sourceSpan));\n }\n }\n _closeVoidElement() {\n const el = this._getParentElement();\n if (el && this.getTagDefinition(el.name).isVoid) {\n this._elementStack.pop();\n }\n }\n _consumeStartTag(startTagToken) {\n const [prefix, name] = startTagToken.parts;\n const attrs = [];\n while (this._peek.type === TokenType.ATTR_NAME) {\n attrs.push(this._consumeAttr(this._advance()));\n }\n const fullName = this._getElementFullName(prefix, name, this._getParentElement());\n let selfClosing = false;\n // Note: There could have been a tokenizer error\n // so that we don't get a token for the end tag...\n if (this._peek.type === TokenType.TAG_OPEN_END_VOID) {\n this._advance();\n selfClosing = true;\n const tagDef = this.getTagDefinition(fullName);\n if (!(tagDef.canSelfClose || getNsPrefix(fullName) !== null || tagDef.isVoid)) {\n this.errors.push(TreeError.create(fullName, startTagToken.sourceSpan, `Only void and foreign elements can be self closed \"${startTagToken.parts[1]}\"`));\n }\n }\n else if (this._peek.type === TokenType.TAG_OPEN_END) {\n this._advance();\n selfClosing = false;\n }\n const end = this._peek.sourceSpan.start;\n const span = new ParseSourceSpan(startTagToken.sourceSpan.start, end, startTagToken.sourceSpan.fullStart);\n // Create a separate `startSpan` because `span` will be modified when there is an `end` span.\n const startSpan = new ParseSourceSpan(startTagToken.sourceSpan.start, end, startTagToken.sourceSpan.fullStart);\n const el = new Element$1(fullName, attrs, [], span, startSpan, undefined);\n this._pushElement(el);\n if (selfClosing) {\n // Elements that are self-closed have their `endSourceSpan` set to the full span, as the\n // element start tag also represents the end tag.\n this._popElement(fullName, span);\n }\n else if (startTagToken.type === TokenType.INCOMPLETE_TAG_OPEN) {\n // We already know the opening tag is not complete, so it is unlikely it has a corresponding\n // close tag. Let's optimistically parse it as a full element and emit an error.\n this._popElement(fullName, null);\n this.errors.push(TreeError.create(fullName, span, `Opening tag \"${fullName}\" not terminated.`));\n }\n }\n _pushElement(el) {\n const parentEl = this._getParentElement();\n if (parentEl && this.getTagDefinition(parentEl.name).isClosedByChild(el.name)) {\n this._elementStack.pop();\n }\n this._addToParent(el);\n this._elementStack.push(el);\n }\n _consumeEndTag(endTagToken) {\n const fullName = this._getElementFullName(endTagToken.parts[0], endTagToken.parts[1], this._getParentElement());\n if (this.getTagDefinition(fullName).isVoid) {\n this.errors.push(TreeError.create(fullName, endTagToken.sourceSpan, `Void elements do not have end tags \"${endTagToken.parts[1]}\"`));\n }\n else if (!this._popElement(fullName, endTagToken.sourceSpan)) {\n const errMsg = `Unexpected closing tag \"${fullName}\". It may happen when the tag has already been closed by another tag. For more info see https://www.w3.org/TR/html5/syntax.html#closing-elements-that-have-implied-end-tags`;\n this.errors.push(TreeError.create(fullName, endTagToken.sourceSpan, errMsg));\n }\n }\n /**\n * Closes the nearest element with the tag name `fullName` in the parse tree.\n * `endSourceSpan` is the span of the closing tag, or null if the element does\n * not have a closing tag (for example, this happens when an incomplete\n * opening tag is recovered).\n */\n _popElement(fullName, endSourceSpan) {\n for (let stackIndex = this._elementStack.length - 1; stackIndex >= 0; stackIndex--) {\n const el = this._elementStack[stackIndex];\n if (el.name == fullName) {\n // Record the parse span with the element that is being closed. Any elements that are\n // removed from the element stack at this point are closed implicitly, so they won't get\n // an end source span (as there is no explicit closing element).\n el.endSourceSpan = endSourceSpan;\n el.sourceSpan.end = endSourceSpan !== null ? endSourceSpan.end : el.sourceSpan.end;\n this._elementStack.splice(stackIndex, this._elementStack.length - stackIndex);\n return true;\n }\n if (!this.getTagDefinition(el.name).closedByParent) {\n return false;\n }\n }\n return false;\n }\n _consumeAttr(attrName) {\n const fullName = mergeNsAndName(attrName.parts[0], attrName.parts[1]);\n let end = attrName.sourceSpan.end;\n let value = '';\n let valueSpan = undefined;\n if (this._peek.type === TokenType.ATTR_QUOTE) {\n this._advance();\n }\n if (this._peek.type === TokenType.ATTR_VALUE) {\n const valueToken = this._advance();\n value = valueToken.parts[0];\n end = valueToken.sourceSpan.end;\n valueSpan = valueToken.sourceSpan;\n }\n if (this._peek.type === TokenType.ATTR_QUOTE) {\n const quoteToken = this._advance();\n end = quoteToken.sourceSpan.end;\n }\n const keySpan = new ParseSourceSpan(attrName.sourceSpan.start, attrName.sourceSpan.end);\n return new Attribute(fullName, value, new ParseSourceSpan(attrName.sourceSpan.start, end, attrName.sourceSpan.fullStart), keySpan, valueSpan);\n }\n _getParentElement() {\n return this._elementStack.length > 0 ? this._elementStack[this._elementStack.length - 1] : null;\n }\n _addToParent(node) {\n const parent = this._getParentElement();\n if (parent != null) {\n parent.children.push(node);\n }\n else {\n this.rootNodes.push(node);\n }\n }\n _getElementFullName(prefix, localName, parentElement) {\n if (prefix === '') {\n prefix = this.getTagDefinition(localName).implicitNamespacePrefix || '';\n if (prefix === '' && parentElement != null) {\n const parentTagName = splitNsName(parentElement.name)[1];\n const parentTagDefinition = this.getTagDefinition(parentTagName);\n if (!parentTagDefinition.preventNamespaceInheritance) {\n prefix = getNsPrefix(parentElement.name);\n }\n }\n }\n return mergeNsAndName(prefix, localName);\n }\n}\nfunction lastOnStack(stack, element) {\n return stack.length > 0 && stack[stack.length - 1] === element;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass HtmlParser extends Parser {\n constructor() {\n super(getHtmlTagDefinition);\n }\n parse(source, url, options) {\n return super.parse(source, url, options);\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst PRESERVE_WS_ATTR_NAME = 'ngPreserveWhitespaces';\nconst SKIP_WS_TRIM_TAGS = new Set(['pre', 'template', 'textarea', 'script', 'style']);\n// Equivalent to \\s with \\u00a0 (non-breaking space) excluded.\n// Based on https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp\nconst WS_CHARS = ' \\f\\n\\r\\t\\v\\u1680\\u180e\\u2000-\\u200a\\u2028\\u2029\\u202f\\u205f\\u3000\\ufeff';\nconst NO_WS_REGEXP = new RegExp(`[^${WS_CHARS}]`);\nconst WS_REPLACE_REGEXP = new RegExp(`[${WS_CHARS}]{2,}`, 'g');\nfunction hasPreserveWhitespacesAttr(attrs) {\n return attrs.some((attr) => attr.name === PRESERVE_WS_ATTR_NAME);\n}\n/**\n * Angular Dart introduced &ngsp; as a placeholder for non-removable space, see:\n * https://github.com/dart-lang/angular/blob/0bb611387d29d65b5af7f9d2515ab571fd3fbee4/_tests/test/compiler/preserve_whitespace_test.dart#L25-L32\n * In Angular Dart &ngsp; is converted to the 0xE500 PUA (Private Use Areas) unicode character\n * and later on replaced by a space. We are re-implementing the same idea here.\n */\nfunction replaceNgsp(value) {\n // lexer is replacing the &ngsp; pseudo-entity with NGSP_UNICODE\n return value.replace(new RegExp(NGSP_UNICODE, 'g'), ' ');\n}\n/**\n * This visitor can walk HTML parse tree and remove / trim text nodes using the following rules:\n * - consider spaces, tabs and new lines as whitespace characters;\n * - drop text nodes consisting of whitespace characters only;\n * - for all other text nodes replace consecutive whitespace characters with one space;\n * - convert &ngsp; pseudo-entity to a single space;\n *\n * Removal and trimming of whitespaces have positive performance impact (less code to generate\n * while compiling templates, faster view creation). At the same time it can be \"destructive\"\n * in some cases (whitespaces can influence layout). Because of the potential of breaking layout\n * this visitor is not activated by default in Angular 5 and people need to explicitly opt-in for\n * whitespace removal. The default option for whitespace removal will be revisited in Angular 6\n * and might be changed to \"on\" by default.\n */\nclass WhitespaceVisitor {\n visitElement(element, context) {\n if (SKIP_WS_TRIM_TAGS.has(element.name) || hasPreserveWhitespacesAttr(element.attrs)) {\n // don't descent into elements where we need to preserve whitespaces\n // but still visit all attributes to eliminate one used as a market to preserve WS\n return new Element$1(element.name, visitAll$1(this, element.attrs), element.children, element.sourceSpan, element.startSourceSpan, element.endSourceSpan, element.i18n);\n }\n return new Element$1(element.name, element.attrs, visitAllWithSiblings(this, element.children), element.sourceSpan, element.startSourceSpan, element.endSourceSpan, element.i18n);\n }\n visitAttribute(attribute, context) {\n return attribute.name !== PRESERVE_WS_ATTR_NAME ? attribute : null;\n }\n visitText(text, context) {\n const isNotBlank = text.value.match(NO_WS_REGEXP);\n const hasExpansionSibling = context &&\n (context.prev instanceof Expansion || context.next instanceof Expansion);\n if (isNotBlank || hasExpansionSibling) {\n return new Text$3(replaceNgsp(text.value).replace(WS_REPLACE_REGEXP, ' '), text.sourceSpan, text.i18n);\n }\n return null;\n }\n visitComment(comment, context) {\n return comment;\n }\n visitExpansion(expansion, context) {\n return expansion;\n }\n visitExpansionCase(expansionCase, context) {\n return expansionCase;\n }\n}\nfunction removeWhitespaces(htmlAstWithErrors) {\n return new ParseTreeResult(visitAll$1(new WhitespaceVisitor(), htmlAstWithErrors.rootNodes), htmlAstWithErrors.errors);\n}\nfunction visitAllWithSiblings(visitor, nodes) {\n const result = [];\n nodes.forEach((ast, i) => {\n const context = { prev: nodes[i - 1], next: nodes[i + 1] };\n const astResult = ast.visit(visitor, context);\n if (astResult) {\n result.push(astResult);\n }\n });\n return result;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// http://cldr.unicode.org/index/cldr-spec/plural-rules\nconst PLURAL_CASES = ['zero', 'one', 'two', 'few', 'many', 'other'];\n/**\n * Expands special forms into elements.\n *\n * For example,\n *\n * ```\n * { messages.length, plural,\n * =0 {zero}\n * =1 {one}\n * other {more than one}\n * }\n * ```\n *\n * will be expanded into\n *\n * ```\n * \n * zero\n * one\n * more than one\n * \n * ```\n */\nfunction expandNodes(nodes) {\n const expander = new _Expander();\n return new ExpansionResult(visitAll$1(expander, nodes), expander.isExpanded, expander.errors);\n}\nclass ExpansionResult {\n constructor(nodes, expanded, errors) {\n this.nodes = nodes;\n this.expanded = expanded;\n this.errors = errors;\n }\n}\nclass ExpansionError extends ParseError {\n constructor(span, errorMsg) {\n super(span, errorMsg);\n }\n}\n/**\n * Expand expansion forms (plural, select) to directives\n *\n * @internal\n */\nclass _Expander {\n constructor() {\n this.isExpanded = false;\n this.errors = [];\n }\n visitElement(element, context) {\n return new Element$1(element.name, element.attrs, visitAll$1(this, element.children), element.sourceSpan, element.startSourceSpan, element.endSourceSpan);\n }\n visitAttribute(attribute, context) {\n return attribute;\n }\n visitText(text, context) {\n return text;\n }\n visitComment(comment, context) {\n return comment;\n }\n visitExpansion(icu, context) {\n this.isExpanded = true;\n return icu.type == 'plural' ? _expandPluralForm(icu, this.errors) :\n _expandDefaultForm(icu, this.errors);\n }\n visitExpansionCase(icuCase, context) {\n throw new Error('Should not be reached');\n }\n}\n// Plural forms are expanded to `NgPlural` and `NgPluralCase`s\nfunction _expandPluralForm(ast, errors) {\n const children = ast.cases.map(c => {\n if (PLURAL_CASES.indexOf(c.value) == -1 && !c.value.match(/^=\\d+$/)) {\n errors.push(new ExpansionError(c.valueSourceSpan, `Plural cases should be \"=\" or one of ${PLURAL_CASES.join(', ')}`));\n }\n const expansionResult = expandNodes(c.expression);\n errors.push(...expansionResult.errors);\n return new Element$1(`ng-template`, [new Attribute('ngPluralCase', `${c.value}`, c.valueSourceSpan, undefined /* keySpan */, undefined /* valueSpan */, undefined /* i18n */)], expansionResult.nodes, c.sourceSpan, c.sourceSpan, c.sourceSpan);\n });\n const switchAttr = new Attribute('[ngPlural]', ast.switchValue, ast.switchValueSourceSpan, undefined /* keySpan */, undefined /* valueSpan */, undefined /* i18n */);\n return new Element$1('ng-container', [switchAttr], children, ast.sourceSpan, ast.sourceSpan, ast.sourceSpan);\n}\n// ICU messages (excluding plural form) are expanded to `NgSwitch` and `NgSwitchCase`s\nfunction _expandDefaultForm(ast, errors) {\n const children = ast.cases.map(c => {\n const expansionResult = expandNodes(c.expression);\n errors.push(...expansionResult.errors);\n if (c.value === 'other') {\n // other is the default case when no values match\n return new Element$1(`ng-template`, [new Attribute('ngSwitchDefault', '', c.valueSourceSpan, undefined /* keySpan */, undefined /* valueSpan */, undefined /* i18n */)], expansionResult.nodes, c.sourceSpan, c.sourceSpan, c.sourceSpan);\n }\n return new Element$1(`ng-template`, [new Attribute('ngSwitchCase', `${c.value}`, c.valueSourceSpan, undefined /* keySpan */, undefined /* valueSpan */, undefined /* i18n */)], expansionResult.nodes, c.sourceSpan, c.sourceSpan, c.sourceSpan);\n });\n const switchAttr = new Attribute('[ngSwitch]', ast.switchValue, ast.switchValueSourceSpan, undefined /* keySpan */, undefined /* valueSpan */, undefined /* i18n */);\n return new Element$1('ng-container', [switchAttr], children, ast.sourceSpan, ast.sourceSpan, ast.sourceSpan);\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A segment of text within the template.\n */\nclass TextAst {\n constructor(value, ngContentIndex, sourceSpan) {\n this.value = value;\n this.ngContentIndex = ngContentIndex;\n this.sourceSpan = sourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitText(this, context);\n }\n}\n/**\n * A bound expression within the text of a template.\n */\nclass BoundTextAst {\n constructor(value, ngContentIndex, sourceSpan) {\n this.value = value;\n this.ngContentIndex = ngContentIndex;\n this.sourceSpan = sourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitBoundText(this, context);\n }\n}\n/**\n * A plain attribute on an element.\n */\nclass AttrAst {\n constructor(name, value, sourceSpan) {\n this.name = name;\n this.value = value;\n this.sourceSpan = sourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitAttr(this, context);\n }\n}\nconst BoundPropertyMapping = {\n [4 /* Animation */]: 4 /* Animation */,\n [1 /* Attribute */]: 1 /* Attribute */,\n [2 /* Class */]: 2 /* Class */,\n [0 /* Property */]: 0 /* Property */,\n [3 /* Style */]: 3 /* Style */,\n};\n/**\n * A binding for an element property (e.g. `[property]=\"expression\"`) or an animation trigger (e.g.\n * `[@trigger]=\"stateExp\"`)\n */\nclass BoundElementPropertyAst {\n constructor(name, type, securityContext, value, unit, sourceSpan) {\n this.name = name;\n this.type = type;\n this.securityContext = securityContext;\n this.value = value;\n this.unit = unit;\n this.sourceSpan = sourceSpan;\n this.isAnimation = this.type === 4 /* Animation */;\n }\n static fromBoundProperty(prop) {\n const type = BoundPropertyMapping[prop.type];\n return new BoundElementPropertyAst(prop.name, type, prop.securityContext, prop.value, prop.unit, prop.sourceSpan);\n }\n visit(visitor, context) {\n return visitor.visitElementProperty(this, context);\n }\n}\n/**\n * A binding for an element event (e.g. `(event)=\"handler()\"`) or an animation trigger event (e.g.\n * `(@trigger.phase)=\"callback($event)\"`).\n */\nclass BoundEventAst {\n constructor(name, target, phase, handler, sourceSpan, handlerSpan) {\n this.name = name;\n this.target = target;\n this.phase = phase;\n this.handler = handler;\n this.sourceSpan = sourceSpan;\n this.handlerSpan = handlerSpan;\n this.fullName = BoundEventAst.calcFullName(this.name, this.target, this.phase);\n this.isAnimation = !!this.phase;\n }\n static calcFullName(name, target, phase) {\n if (target) {\n return `${target}:${name}`;\n }\n if (phase) {\n return `@${name}.${phase}`;\n }\n return name;\n }\n static fromParsedEvent(event) {\n const target = event.type === 0 /* Regular */ ? event.targetOrPhase : null;\n const phase = event.type === 1 /* Animation */ ? event.targetOrPhase : null;\n return new BoundEventAst(event.name, target, phase, event.handler, event.sourceSpan, event.handlerSpan);\n }\n visit(visitor, context) {\n return visitor.visitEvent(this, context);\n }\n}\n/**\n * A reference declaration on an element (e.g. `let someName=\"expression\"`).\n */\nclass ReferenceAst {\n constructor(name, value, originalValue, sourceSpan) {\n this.name = name;\n this.value = value;\n this.originalValue = originalValue;\n this.sourceSpan = sourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitReference(this, context);\n }\n}\n/**\n * A variable declaration on a (e.g. `var-someName=\"someLocalName\"`).\n */\nclass VariableAst {\n constructor(name, value, sourceSpan, valueSpan) {\n this.name = name;\n this.value = value;\n this.sourceSpan = sourceSpan;\n this.valueSpan = valueSpan;\n }\n static fromParsedVariable(v) {\n return new VariableAst(v.name, v.value, v.sourceSpan, v.valueSpan);\n }\n visit(visitor, context) {\n return visitor.visitVariable(this, context);\n }\n}\n/**\n * An element declaration in a template.\n */\nclass ElementAst {\n constructor(name, attrs, inputs, outputs, references, directives, providers, hasViewContainer, queryMatches, children, ngContentIndex, sourceSpan, endSourceSpan) {\n this.name = name;\n this.attrs = attrs;\n this.inputs = inputs;\n this.outputs = outputs;\n this.references = references;\n this.directives = directives;\n this.providers = providers;\n this.hasViewContainer = hasViewContainer;\n this.queryMatches = queryMatches;\n this.children = children;\n this.ngContentIndex = ngContentIndex;\n this.sourceSpan = sourceSpan;\n this.endSourceSpan = endSourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitElement(this, context);\n }\n}\n/**\n * A `` element included in an Angular template.\n */\nclass EmbeddedTemplateAst {\n constructor(attrs, outputs, references, variables, directives, providers, hasViewContainer, queryMatches, children, ngContentIndex, sourceSpan) {\n this.attrs = attrs;\n this.outputs = outputs;\n this.references = references;\n this.variables = variables;\n this.directives = directives;\n this.providers = providers;\n this.hasViewContainer = hasViewContainer;\n this.queryMatches = queryMatches;\n this.children = children;\n this.ngContentIndex = ngContentIndex;\n this.sourceSpan = sourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitEmbeddedTemplate(this, context);\n }\n}\n/**\n * A directive property with a bound value (e.g. `*ngIf=\"condition\").\n */\nclass BoundDirectivePropertyAst {\n constructor(directiveName, templateName, value, sourceSpan) {\n this.directiveName = directiveName;\n this.templateName = templateName;\n this.value = value;\n this.sourceSpan = sourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitDirectiveProperty(this, context);\n }\n}\n/**\n * A directive declared on an element.\n */\nclass DirectiveAst {\n constructor(directive, inputs, hostProperties, hostEvents, contentQueryStartId, sourceSpan) {\n this.directive = directive;\n this.inputs = inputs;\n this.hostProperties = hostProperties;\n this.hostEvents = hostEvents;\n this.contentQueryStartId = contentQueryStartId;\n this.sourceSpan = sourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitDirective(this, context);\n }\n}\n/**\n * A provider declared on an element\n */\nclass ProviderAst {\n constructor(token, multiProvider, eager, providers, providerType, lifecycleHooks, sourceSpan, isModule) {\n this.token = token;\n this.multiProvider = multiProvider;\n this.eager = eager;\n this.providers = providers;\n this.providerType = providerType;\n this.lifecycleHooks = lifecycleHooks;\n this.sourceSpan = sourceSpan;\n this.isModule = isModule;\n }\n visit(visitor, context) {\n // No visit method in the visitor for now...\n return null;\n }\n}\nvar ProviderAstType;\n(function (ProviderAstType) {\n ProviderAstType[ProviderAstType[\"PublicService\"] = 0] = \"PublicService\";\n ProviderAstType[ProviderAstType[\"PrivateService\"] = 1] = \"PrivateService\";\n ProviderAstType[ProviderAstType[\"Component\"] = 2] = \"Component\";\n ProviderAstType[ProviderAstType[\"Directive\"] = 3] = \"Directive\";\n ProviderAstType[ProviderAstType[\"Builtin\"] = 4] = \"Builtin\";\n})(ProviderAstType || (ProviderAstType = {}));\n/**\n * Position where content is to be projected (instance of `` in a template).\n */\nclass NgContentAst {\n constructor(index, ngContentIndex, sourceSpan) {\n this.index = index;\n this.ngContentIndex = ngContentIndex;\n this.sourceSpan = sourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitNgContent(this, context);\n }\n}\n/**\n * A visitor that accepts each node but doesn't do anything. It is intended to be used\n * as the base class for a visitor that is only interested in a subset of the node types.\n */\nclass NullTemplateVisitor {\n visitNgContent(ast, context) { }\n visitEmbeddedTemplate(ast, context) { }\n visitElement(ast, context) { }\n visitReference(ast, context) { }\n visitVariable(ast, context) { }\n visitEvent(ast, context) { }\n visitElementProperty(ast, context) { }\n visitAttr(ast, context) { }\n visitBoundText(ast, context) { }\n visitText(ast, context) { }\n visitDirective(ast, context) { }\n visitDirectiveProperty(ast, context) { }\n}\n/**\n * Base class that can be used to build a visitor that visits each node\n * in an template ast recursively.\n */\nclass RecursiveTemplateAstVisitor extends NullTemplateVisitor {\n constructor() {\n super();\n }\n // Nodes with children\n visitEmbeddedTemplate(ast, context) {\n return this.visitChildren(context, visit => {\n visit(ast.attrs);\n visit(ast.references);\n visit(ast.variables);\n visit(ast.directives);\n visit(ast.providers);\n visit(ast.children);\n });\n }\n visitElement(ast, context) {\n return this.visitChildren(context, visit => {\n visit(ast.attrs);\n visit(ast.inputs);\n visit(ast.outputs);\n visit(ast.references);\n visit(ast.directives);\n visit(ast.providers);\n visit(ast.children);\n });\n }\n visitDirective(ast, context) {\n return this.visitChildren(context, visit => {\n visit(ast.inputs);\n visit(ast.hostProperties);\n visit(ast.hostEvents);\n });\n }\n visitChildren(context, cb) {\n let results = [];\n let t = this;\n function visit(children) {\n if (children && children.length)\n results.push(templateVisitAll(t, children, context));\n }\n cb(visit);\n return Array.prototype.concat.apply([], results);\n }\n}\n/**\n * Visit every node in a list of {@link TemplateAst}s with the given {@link TemplateAstVisitor}.\n */\nfunction templateVisitAll(visitor, asts, context = null) {\n const result = [];\n const visit = visitor.visit ?\n (ast) => visitor.visit(ast, context) || ast.visit(visitor, context) :\n (ast) => ast.visit(visitor, context);\n asts.forEach(ast => {\n const astResult = visit(ast);\n if (astResult) {\n result.push(astResult);\n }\n });\n return result;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass ProviderError extends ParseError {\n constructor(message, span) {\n super(span, message);\n }\n}\nclass ProviderViewContext {\n constructor(reflector, component) {\n this.reflector = reflector;\n this.component = component;\n this.errors = [];\n this.viewQueries = _getViewQueries(component);\n this.viewProviders = new Map();\n component.viewProviders.forEach((provider) => {\n if (this.viewProviders.get(tokenReference(provider.token)) == null) {\n this.viewProviders.set(tokenReference(provider.token), true);\n }\n });\n }\n}\nclass ProviderElementContext {\n constructor(viewContext, _parent, _isViewRoot, _directiveAsts, attrs, refs, isTemplate, contentQueryStartId, _sourceSpan) {\n this.viewContext = viewContext;\n this._parent = _parent;\n this._isViewRoot = _isViewRoot;\n this._directiveAsts = _directiveAsts;\n this._sourceSpan = _sourceSpan;\n this._transformedProviders = new Map();\n this._seenProviders = new Map();\n this._queriedTokens = new Map();\n this.transformedHasViewContainer = false;\n this._attrs = {};\n attrs.forEach((attrAst) => this._attrs[attrAst.name] = attrAst.value);\n const directivesMeta = _directiveAsts.map(directiveAst => directiveAst.directive);\n this._allProviders =\n _resolveProvidersFromDirectives(directivesMeta, _sourceSpan, viewContext.errors);\n this._contentQueries = _getContentQueries(contentQueryStartId, directivesMeta);\n Array.from(this._allProviders.values()).forEach((provider) => {\n this._addQueryReadsTo(provider.token, provider.token, this._queriedTokens);\n });\n if (isTemplate) {\n const templateRefId = createTokenForExternalReference(this.viewContext.reflector, Identifiers.TemplateRef);\n this._addQueryReadsTo(templateRefId, templateRefId, this._queriedTokens);\n }\n refs.forEach((refAst) => {\n let defaultQueryValue = refAst.value ||\n createTokenForExternalReference(this.viewContext.reflector, Identifiers.ElementRef);\n this._addQueryReadsTo({ value: refAst.name }, defaultQueryValue, this._queriedTokens);\n });\n if (this._queriedTokens.get(this.viewContext.reflector.resolveExternalReference(Identifiers.ViewContainerRef))) {\n this.transformedHasViewContainer = true;\n }\n // create the providers that we know are eager first\n Array.from(this._allProviders.values()).forEach((provider) => {\n const eager = provider.eager || this._queriedTokens.get(tokenReference(provider.token));\n if (eager) {\n this._getOrCreateLocalProvider(provider.providerType, provider.token, true);\n }\n });\n }\n afterElement() {\n // collect lazy providers\n Array.from(this._allProviders.values()).forEach((provider) => {\n this._getOrCreateLocalProvider(provider.providerType, provider.token, false);\n });\n }\n get transformProviders() {\n // Note: Maps keep their insertion order.\n const lazyProviders = [];\n const eagerProviders = [];\n this._transformedProviders.forEach(provider => {\n if (provider.eager) {\n eagerProviders.push(provider);\n }\n else {\n lazyProviders.push(provider);\n }\n });\n return lazyProviders.concat(eagerProviders);\n }\n get transformedDirectiveAsts() {\n const sortedProviderTypes = this.transformProviders.map(provider => provider.token.identifier);\n const sortedDirectives = this._directiveAsts.slice();\n sortedDirectives.sort((dir1, dir2) => sortedProviderTypes.indexOf(dir1.directive.type) -\n sortedProviderTypes.indexOf(dir2.directive.type));\n return sortedDirectives;\n }\n get queryMatches() {\n const allMatches = [];\n this._queriedTokens.forEach((matches) => {\n allMatches.push(...matches);\n });\n return allMatches;\n }\n _addQueryReadsTo(token, defaultValue, queryReadTokens) {\n this._getQueriesFor(token).forEach((query) => {\n const queryValue = query.meta.read || defaultValue;\n const tokenRef = tokenReference(queryValue);\n let queryMatches = queryReadTokens.get(tokenRef);\n if (!queryMatches) {\n queryMatches = [];\n queryReadTokens.set(tokenRef, queryMatches);\n }\n queryMatches.push({ queryId: query.queryId, value: queryValue });\n });\n }\n _getQueriesFor(token) {\n const result = [];\n let currentEl = this;\n let distance = 0;\n let queries;\n while (currentEl !== null) {\n queries = currentEl._contentQueries.get(tokenReference(token));\n if (queries) {\n result.push(...queries.filter((query) => query.meta.descendants || distance <= 1));\n }\n if (currentEl._directiveAsts.length > 0) {\n distance++;\n }\n currentEl = currentEl._parent;\n }\n queries = this.viewContext.viewQueries.get(tokenReference(token));\n if (queries) {\n result.push(...queries);\n }\n return result;\n }\n _getOrCreateLocalProvider(requestingProviderType, token, eager) {\n const resolvedProvider = this._allProviders.get(tokenReference(token));\n if (!resolvedProvider ||\n ((requestingProviderType === ProviderAstType.Directive ||\n requestingProviderType === ProviderAstType.PublicService) &&\n resolvedProvider.providerType === ProviderAstType.PrivateService) ||\n ((requestingProviderType === ProviderAstType.PrivateService ||\n requestingProviderType === ProviderAstType.PublicService) &&\n resolvedProvider.providerType === ProviderAstType.Builtin)) {\n return null;\n }\n let transformedProviderAst = this._transformedProviders.get(tokenReference(token));\n if (transformedProviderAst) {\n return transformedProviderAst;\n }\n if (this._seenProviders.get(tokenReference(token)) != null) {\n this.viewContext.errors.push(new ProviderError(`Cannot instantiate cyclic dependency! ${tokenName(token)}`, this._sourceSpan));\n return null;\n }\n this._seenProviders.set(tokenReference(token), true);\n const transformedProviders = resolvedProvider.providers.map((provider) => {\n let transformedUseValue = provider.useValue;\n let transformedUseExisting = provider.useExisting;\n let transformedDeps = undefined;\n if (provider.useExisting != null) {\n const existingDiDep = this._getDependency(resolvedProvider.providerType, { token: provider.useExisting }, eager);\n if (existingDiDep.token != null) {\n transformedUseExisting = existingDiDep.token;\n }\n else {\n transformedUseExisting = null;\n transformedUseValue = existingDiDep.value;\n }\n }\n else if (provider.useFactory) {\n const deps = provider.deps || provider.useFactory.diDeps;\n transformedDeps =\n deps.map((dep) => this._getDependency(resolvedProvider.providerType, dep, eager));\n }\n else if (provider.useClass) {\n const deps = provider.deps || provider.useClass.diDeps;\n transformedDeps =\n deps.map((dep) => this._getDependency(resolvedProvider.providerType, dep, eager));\n }\n return _transformProvider(provider, {\n useExisting: transformedUseExisting,\n useValue: transformedUseValue,\n deps: transformedDeps\n });\n });\n transformedProviderAst =\n _transformProviderAst(resolvedProvider, { eager: eager, providers: transformedProviders });\n this._transformedProviders.set(tokenReference(token), transformedProviderAst);\n return transformedProviderAst;\n }\n _getLocalDependency(requestingProviderType, dep, eager = false) {\n if (dep.isAttribute) {\n const attrValue = this._attrs[dep.token.value];\n return { isValue: true, value: attrValue == null ? null : attrValue };\n }\n if (dep.token != null) {\n // access builtints\n if ((requestingProviderType === ProviderAstType.Directive ||\n requestingProviderType === ProviderAstType.Component)) {\n if (tokenReference(dep.token) ===\n this.viewContext.reflector.resolveExternalReference(Identifiers.Renderer) ||\n tokenReference(dep.token) ===\n this.viewContext.reflector.resolveExternalReference(Identifiers.ElementRef) ||\n tokenReference(dep.token) ===\n this.viewContext.reflector.resolveExternalReference(Identifiers.ChangeDetectorRef) ||\n tokenReference(dep.token) ===\n this.viewContext.reflector.resolveExternalReference(Identifiers.TemplateRef)) {\n return dep;\n }\n if (tokenReference(dep.token) ===\n this.viewContext.reflector.resolveExternalReference(Identifiers.ViewContainerRef)) {\n this.transformedHasViewContainer = true;\n }\n }\n // access the injector\n if (tokenReference(dep.token) ===\n this.viewContext.reflector.resolveExternalReference(Identifiers.Injector)) {\n return dep;\n }\n // access providers\n if (this._getOrCreateLocalProvider(requestingProviderType, dep.token, eager) != null) {\n return dep;\n }\n }\n return null;\n }\n _getDependency(requestingProviderType, dep, eager = false) {\n let currElement = this;\n let currEager = eager;\n let result = null;\n if (!dep.isSkipSelf) {\n result = this._getLocalDependency(requestingProviderType, dep, eager);\n }\n if (dep.isSelf) {\n if (!result && dep.isOptional) {\n result = { isValue: true, value: null };\n }\n }\n else {\n // check parent elements\n while (!result && currElement._parent) {\n const prevElement = currElement;\n currElement = currElement._parent;\n if (prevElement._isViewRoot) {\n currEager = false;\n }\n result = currElement._getLocalDependency(ProviderAstType.PublicService, dep, currEager);\n }\n // check @Host restriction\n if (!result) {\n if (!dep.isHost || this.viewContext.component.isHost ||\n this.viewContext.component.type.reference === tokenReference(dep.token) ||\n this.viewContext.viewProviders.get(tokenReference(dep.token)) != null) {\n result = dep;\n }\n else {\n result = dep.isOptional ? { isValue: true, value: null } : null;\n }\n }\n }\n if (!result) {\n this.viewContext.errors.push(new ProviderError(`No provider for ${tokenName(dep.token)}`, this._sourceSpan));\n }\n return result;\n }\n}\nclass NgModuleProviderAnalyzer {\n constructor(reflector, ngModule, extraProviders, sourceSpan) {\n this.reflector = reflector;\n this._transformedProviders = new Map();\n this._seenProviders = new Map();\n this._errors = [];\n this._allProviders = new Map();\n ngModule.transitiveModule.modules.forEach((ngModuleType) => {\n const ngModuleProvider = { token: { identifier: ngModuleType }, useClass: ngModuleType };\n _resolveProviders([ngModuleProvider], ProviderAstType.PublicService, true, sourceSpan, this._errors, this._allProviders, /* isModule */ true);\n });\n _resolveProviders(ngModule.transitiveModule.providers.map(entry => entry.provider).concat(extraProviders), ProviderAstType.PublicService, false, sourceSpan, this._errors, this._allProviders, \n /* isModule */ false);\n }\n parse() {\n Array.from(this._allProviders.values()).forEach((provider) => {\n this._getOrCreateLocalProvider(provider.token, provider.eager);\n });\n if (this._errors.length > 0) {\n const errorString = this._errors.join('\\n');\n throw new Error(`Provider parse errors:\\n${errorString}`);\n }\n // Note: Maps keep their insertion order.\n const lazyProviders = [];\n const eagerProviders = [];\n this._transformedProviders.forEach(provider => {\n if (provider.eager) {\n eagerProviders.push(provider);\n }\n else {\n lazyProviders.push(provider);\n }\n });\n return lazyProviders.concat(eagerProviders);\n }\n _getOrCreateLocalProvider(token, eager) {\n const resolvedProvider = this._allProviders.get(tokenReference(token));\n if (!resolvedProvider) {\n return null;\n }\n let transformedProviderAst = this._transformedProviders.get(tokenReference(token));\n if (transformedProviderAst) {\n return transformedProviderAst;\n }\n if (this._seenProviders.get(tokenReference(token)) != null) {\n this._errors.push(new ProviderError(`Cannot instantiate cyclic dependency! ${tokenName(token)}`, resolvedProvider.sourceSpan));\n return null;\n }\n this._seenProviders.set(tokenReference(token), true);\n const transformedProviders = resolvedProvider.providers.map((provider) => {\n let transformedUseValue = provider.useValue;\n let transformedUseExisting = provider.useExisting;\n let transformedDeps = undefined;\n if (provider.useExisting != null) {\n const existingDiDep = this._getDependency({ token: provider.useExisting }, eager, resolvedProvider.sourceSpan);\n if (existingDiDep.token != null) {\n transformedUseExisting = existingDiDep.token;\n }\n else {\n transformedUseExisting = null;\n transformedUseValue = existingDiDep.value;\n }\n }\n else if (provider.useFactory) {\n const deps = provider.deps || provider.useFactory.diDeps;\n transformedDeps =\n deps.map((dep) => this._getDependency(dep, eager, resolvedProvider.sourceSpan));\n }\n else if (provider.useClass) {\n const deps = provider.deps || provider.useClass.diDeps;\n transformedDeps =\n deps.map((dep) => this._getDependency(dep, eager, resolvedProvider.sourceSpan));\n }\n return _transformProvider(provider, {\n useExisting: transformedUseExisting,\n useValue: transformedUseValue,\n deps: transformedDeps\n });\n });\n transformedProviderAst =\n _transformProviderAst(resolvedProvider, { eager: eager, providers: transformedProviders });\n this._transformedProviders.set(tokenReference(token), transformedProviderAst);\n return transformedProviderAst;\n }\n _getDependency(dep, eager = false, requestorSourceSpan) {\n let foundLocal = false;\n if (!dep.isSkipSelf && dep.token != null) {\n // access the injector\n if (tokenReference(dep.token) ===\n this.reflector.resolveExternalReference(Identifiers.Injector) ||\n tokenReference(dep.token) ===\n this.reflector.resolveExternalReference(Identifiers.ComponentFactoryResolver)) {\n foundLocal = true;\n // access providers\n }\n else if (this._getOrCreateLocalProvider(dep.token, eager) != null) {\n foundLocal = true;\n }\n }\n return dep;\n }\n}\nfunction _transformProvider(provider, { useExisting, useValue, deps }) {\n return {\n token: provider.token,\n useClass: provider.useClass,\n useExisting: useExisting,\n useFactory: provider.useFactory,\n useValue: useValue,\n deps: deps,\n multi: provider.multi\n };\n}\nfunction _transformProviderAst(provider, { eager, providers }) {\n return new ProviderAst(provider.token, provider.multiProvider, provider.eager || eager, providers, provider.providerType, provider.lifecycleHooks, provider.sourceSpan, provider.isModule);\n}\nfunction _resolveProvidersFromDirectives(directives, sourceSpan, targetErrors) {\n const providersByToken = new Map();\n directives.forEach((directive) => {\n const dirProvider = { token: { identifier: directive.type }, useClass: directive.type };\n _resolveProviders([dirProvider], directive.isComponent ? ProviderAstType.Component : ProviderAstType.Directive, true, sourceSpan, targetErrors, providersByToken, /* isModule */ false);\n });\n // Note: directives need to be able to overwrite providers of a component!\n const directivesWithComponentFirst = directives.filter(dir => dir.isComponent).concat(directives.filter(dir => !dir.isComponent));\n directivesWithComponentFirst.forEach((directive) => {\n _resolveProviders(directive.providers, ProviderAstType.PublicService, false, sourceSpan, targetErrors, providersByToken, /* isModule */ false);\n _resolveProviders(directive.viewProviders, ProviderAstType.PrivateService, false, sourceSpan, targetErrors, providersByToken, /* isModule */ false);\n });\n return providersByToken;\n}\nfunction _resolveProviders(providers, providerType, eager, sourceSpan, targetErrors, targetProvidersByToken, isModule) {\n providers.forEach((provider) => {\n let resolvedProvider = targetProvidersByToken.get(tokenReference(provider.token));\n if (resolvedProvider != null && !!resolvedProvider.multiProvider !== !!provider.multi) {\n targetErrors.push(new ProviderError(`Mixing multi and non multi provider is not possible for token ${tokenName(resolvedProvider.token)}`, sourceSpan));\n }\n if (!resolvedProvider) {\n const lifecycleHooks = provider.token.identifier &&\n provider.token.identifier.lifecycleHooks ?\n provider.token.identifier.lifecycleHooks :\n [];\n const isUseValue = !(provider.useClass || provider.useExisting || provider.useFactory);\n resolvedProvider = new ProviderAst(provider.token, !!provider.multi, eager || isUseValue, [provider], providerType, lifecycleHooks, sourceSpan, isModule);\n targetProvidersByToken.set(tokenReference(provider.token), resolvedProvider);\n }\n else {\n if (!provider.multi) {\n resolvedProvider.providers.length = 0;\n }\n resolvedProvider.providers.push(provider);\n }\n });\n}\nfunction _getViewQueries(component) {\n // Note: queries start with id 1 so we can use the number in a Bloom filter!\n let viewQueryId = 1;\n const viewQueries = new Map();\n if (component.viewQueries) {\n component.viewQueries.forEach((query) => _addQueryToTokenMap(viewQueries, { meta: query, queryId: viewQueryId++ }));\n }\n return viewQueries;\n}\nfunction _getContentQueries(contentQueryStartId, directives) {\n let contentQueryId = contentQueryStartId;\n const contentQueries = new Map();\n directives.forEach((directive, directiveIndex) => {\n if (directive.queries) {\n directive.queries.forEach((query) => _addQueryToTokenMap(contentQueries, { meta: query, queryId: contentQueryId++ }));\n }\n });\n return contentQueries;\n}\nfunction _addQueryToTokenMap(map, query) {\n query.meta.selectors.forEach((token) => {\n let entry = map.get(tokenReference(token));\n if (!entry) {\n entry = [];\n map.set(tokenReference(token), entry);\n }\n entry.push(query);\n });\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass StyleWithImports {\n constructor(style, styleUrls) {\n this.style = style;\n this.styleUrls = styleUrls;\n }\n}\nfunction isStyleUrlResolvable(url) {\n if (url == null || url.length === 0 || url[0] == '/')\n return false;\n const schemeMatch = url.match(URL_WITH_SCHEMA_REGEXP);\n return schemeMatch === null || schemeMatch[1] == 'package' || schemeMatch[1] == 'asset';\n}\n/**\n * Rewrites stylesheets by resolving and removing the @import urls that\n * are either relative or don't have a `package:` scheme\n */\nfunction extractStyleUrls(resolver, baseUrl, cssText) {\n const foundUrls = [];\n const modifiedCssText = cssText.replace(CSS_STRIPPABLE_COMMENT_REGEXP, '')\n .replace(CSS_IMPORT_REGEXP, (...m) => {\n const url = m[1] || m[2];\n if (!isStyleUrlResolvable(url)) {\n // Do not attempt to resolve non-package absolute URLs with URI\n // scheme\n return m[0];\n }\n foundUrls.push(resolver.resolve(baseUrl, url));\n return '';\n });\n return new StyleWithImports(modifiedCssText, foundUrls);\n}\nconst CSS_IMPORT_REGEXP = /@import\\s+(?:url\\()?\\s*(?:(?:['\"]([^'\"]*))|([^;\\)\\s]*))[^;]*;?/g;\nconst CSS_STRIPPABLE_COMMENT_REGEXP = /\\/\\*(?!#\\s*(?:sourceURL|sourceMappingURL)=)[\\s\\S]+?\\*\\//g;\nconst URL_WITH_SCHEMA_REGEXP = /^([^:/?#]+):/;\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst PROPERTY_PARTS_SEPARATOR = '.';\nconst ATTRIBUTE_PREFIX = 'attr';\nconst CLASS_PREFIX = 'class';\nconst STYLE_PREFIX = 'style';\nconst TEMPLATE_ATTR_PREFIX = '*';\nconst ANIMATE_PROP_PREFIX = 'animate-';\n/**\n * Parses bindings in templates and in the directive host area.\n */\nclass BindingParser {\n constructor(_exprParser, _interpolationConfig, _schemaRegistry, pipes, errors) {\n this._exprParser = _exprParser;\n this._interpolationConfig = _interpolationConfig;\n this._schemaRegistry = _schemaRegistry;\n this.errors = errors;\n this.pipesByName = null;\n this._usedPipes = new Map();\n // When the `pipes` parameter is `null`, do not check for used pipes\n // This is used in IVY when we might not know the available pipes at compile time\n if (pipes) {\n const pipesByName = new Map();\n pipes.forEach(pipe => pipesByName.set(pipe.name, pipe));\n this.pipesByName = pipesByName;\n }\n }\n get interpolationConfig() {\n return this._interpolationConfig;\n }\n getUsedPipes() {\n return Array.from(this._usedPipes.values());\n }\n createBoundHostProperties(dirMeta, sourceSpan) {\n if (dirMeta.hostProperties) {\n const boundProps = [];\n Object.keys(dirMeta.hostProperties).forEach(propName => {\n const expression = dirMeta.hostProperties[propName];\n if (typeof expression === 'string') {\n this.parsePropertyBinding(propName, expression, true, sourceSpan, sourceSpan.start.offset, undefined, [], \n // Use the `sourceSpan` for `keySpan`. This isn't really accurate, but neither is the\n // sourceSpan, as it represents the sourceSpan of the host itself rather than the\n // source of the host binding (which doesn't exist in the template). Regardless,\n // neither of these values are used in Ivy but are only here to satisfy the function\n // signature. This should likely be refactored in the future so that `sourceSpan`\n // isn't being used inaccurately.\n boundProps, sourceSpan);\n }\n else {\n this._reportError(`Value of the host property binding \"${propName}\" needs to be a string representing an expression but got \"${expression}\" (${typeof expression})`, sourceSpan);\n }\n });\n return boundProps;\n }\n return null;\n }\n createDirectiveHostPropertyAsts(dirMeta, elementSelector, sourceSpan) {\n const boundProps = this.createBoundHostProperties(dirMeta, sourceSpan);\n return boundProps &&\n boundProps.map((prop) => this.createBoundElementProperty(elementSelector, prop));\n }\n createDirectiveHostEventAsts(dirMeta, sourceSpan) {\n if (dirMeta.hostListeners) {\n const targetEvents = [];\n Object.keys(dirMeta.hostListeners).forEach(propName => {\n const expression = dirMeta.hostListeners[propName];\n if (typeof expression === 'string') {\n // Use the `sourceSpan` for `keySpan` and `handlerSpan`. This isn't really accurate, but\n // neither is the `sourceSpan`, as it represents the `sourceSpan` of the host itself\n // rather than the source of the host binding (which doesn't exist in the template).\n // Regardless, neither of these values are used in Ivy but are only here to satisfy the\n // function signature. This should likely be refactored in the future so that `sourceSpan`\n // isn't being used inaccurately.\n this.parseEvent(propName, expression, sourceSpan, sourceSpan, [], targetEvents, sourceSpan);\n }\n else {\n this._reportError(`Value of the host listener \"${propName}\" needs to be a string representing an expression but got \"${expression}\" (${typeof expression})`, sourceSpan);\n }\n });\n return targetEvents;\n }\n return null;\n }\n parseInterpolation(value, sourceSpan) {\n const sourceInfo = sourceSpan.start.toString();\n try {\n const ast = this._exprParser.parseInterpolation(value, sourceInfo, sourceSpan.start.offset, this._interpolationConfig);\n if (ast)\n this._reportExpressionParserErrors(ast.errors, sourceSpan);\n this._checkPipes(ast, sourceSpan);\n return ast;\n }\n catch (e) {\n this._reportError(`${e}`, sourceSpan);\n return this._exprParser.wrapLiteralPrimitive('ERROR', sourceInfo, sourceSpan.start.offset);\n }\n }\n /**\n * Similar to `parseInterpolation`, but treats the provided string as a single expression\n * element that would normally appear within the interpolation prefix and suffix (`{{` and `}}`).\n * This is used for parsing the switch expression in ICUs.\n */\n parseInterpolationExpression(expression, sourceSpan) {\n const sourceInfo = sourceSpan.start.toString();\n try {\n const ast = this._exprParser.parseInterpolationExpression(expression, sourceInfo, sourceSpan.start.offset);\n if (ast)\n this._reportExpressionParserErrors(ast.errors, sourceSpan);\n this._checkPipes(ast, sourceSpan);\n return ast;\n }\n catch (e) {\n this._reportError(`${e}`, sourceSpan);\n return this._exprParser.wrapLiteralPrimitive('ERROR', sourceInfo, sourceSpan.start.offset);\n }\n }\n /**\n * Parses the bindings in a microsyntax expression, and converts them to\n * `ParsedProperty` or `ParsedVariable`.\n *\n * @param tplKey template binding name\n * @param tplValue template binding value\n * @param sourceSpan span of template binding relative to entire the template\n * @param absoluteValueOffset start of the tplValue relative to the entire template\n * @param targetMatchableAttrs potential attributes to match in the template\n * @param targetProps target property bindings in the template\n * @param targetVars target variables in the template\n */\n parseInlineTemplateBinding(tplKey, tplValue, sourceSpan, absoluteValueOffset, targetMatchableAttrs, targetProps, targetVars, isIvyAst) {\n const absoluteKeyOffset = sourceSpan.start.offset + TEMPLATE_ATTR_PREFIX.length;\n const bindings = this._parseTemplateBindings(tplKey, tplValue, sourceSpan, absoluteKeyOffset, absoluteValueOffset);\n for (const binding of bindings) {\n // sourceSpan is for the entire HTML attribute. bindingSpan is for a particular\n // binding within the microsyntax expression so it's more narrow than sourceSpan.\n const bindingSpan = moveParseSourceSpan(sourceSpan, binding.sourceSpan);\n const key = binding.key.source;\n const keySpan = moveParseSourceSpan(sourceSpan, binding.key.span);\n if (binding instanceof VariableBinding) {\n const value = binding.value ? binding.value.source : '$implicit';\n const valueSpan = binding.value ? moveParseSourceSpan(sourceSpan, binding.value.span) : undefined;\n targetVars.push(new ParsedVariable(key, value, bindingSpan, keySpan, valueSpan));\n }\n else if (binding.value) {\n const srcSpan = isIvyAst ? bindingSpan : sourceSpan;\n const valueSpan = moveParseSourceSpan(sourceSpan, binding.value.ast.sourceSpan);\n this._parsePropertyAst(key, binding.value, srcSpan, keySpan, valueSpan, targetMatchableAttrs, targetProps);\n }\n else {\n targetMatchableAttrs.push([key, '' /* value */]);\n // Since this is a literal attribute with no RHS, source span should be\n // just the key span.\n this.parseLiteralAttr(key, null /* value */, keySpan, absoluteValueOffset, undefined /* valueSpan */, targetMatchableAttrs, targetProps, keySpan);\n }\n }\n }\n /**\n * Parses the bindings in a microsyntax expression, e.g.\n * ```\n * \n * ```\n *\n * @param tplKey template binding name\n * @param tplValue template binding value\n * @param sourceSpan span of template binding relative to entire the template\n * @param absoluteKeyOffset start of the `tplKey`\n * @param absoluteValueOffset start of the `tplValue`\n */\n _parseTemplateBindings(tplKey, tplValue, sourceSpan, absoluteKeyOffset, absoluteValueOffset) {\n const sourceInfo = sourceSpan.start.toString();\n try {\n const bindingsResult = this._exprParser.parseTemplateBindings(tplKey, tplValue, sourceInfo, absoluteKeyOffset, absoluteValueOffset);\n this._reportExpressionParserErrors(bindingsResult.errors, sourceSpan);\n bindingsResult.templateBindings.forEach((binding) => {\n if (binding.value instanceof ASTWithSource) {\n this._checkPipes(binding.value, sourceSpan);\n }\n });\n bindingsResult.warnings.forEach((warning) => {\n this._reportError(warning, sourceSpan, ParseErrorLevel.WARNING);\n });\n return bindingsResult.templateBindings;\n }\n catch (e) {\n this._reportError(`${e}`, sourceSpan);\n return [];\n }\n }\n parseLiteralAttr(name, value, sourceSpan, absoluteOffset, valueSpan, targetMatchableAttrs, \n // TODO(atscott): keySpan is only optional here so VE template parser implementation does not\n // have to change This should be required when VE is removed.\n targetProps, keySpan) {\n if (isAnimationLabel(name)) {\n name = name.substring(1);\n if (keySpan !== undefined) {\n keySpan = moveParseSourceSpan(keySpan, new AbsoluteSourceSpan(keySpan.start.offset + 1, keySpan.end.offset));\n }\n if (value) {\n this._reportError(`Assigning animation triggers via @prop=\"exp\" attributes with an expression is invalid.` +\n ` Use property bindings (e.g. [@prop]=\"exp\") or use an attribute without a value (e.g. @prop) instead.`, sourceSpan, ParseErrorLevel.ERROR);\n }\n this._parseAnimation(name, value, sourceSpan, absoluteOffset, keySpan, valueSpan, targetMatchableAttrs, targetProps);\n }\n else {\n targetProps.push(new ParsedProperty(name, this._exprParser.wrapLiteralPrimitive(value, '', absoluteOffset), ParsedPropertyType.LITERAL_ATTR, sourceSpan, keySpan, valueSpan));\n }\n }\n parsePropertyBinding(name, expression, isHost, sourceSpan, absoluteOffset, valueSpan, \n // TODO(atscott): keySpan is only optional here so VE template parser implementation does not\n // have to change This should be required when VE is removed.\n targetMatchableAttrs, targetProps, keySpan) {\n if (name.length === 0) {\n this._reportError(`Property name is missing in binding`, sourceSpan);\n }\n let isAnimationProp = false;\n if (name.startsWith(ANIMATE_PROP_PREFIX)) {\n isAnimationProp = true;\n name = name.substring(ANIMATE_PROP_PREFIX.length);\n if (keySpan !== undefined) {\n keySpan = moveParseSourceSpan(keySpan, new AbsoluteSourceSpan(keySpan.start.offset + ANIMATE_PROP_PREFIX.length, keySpan.end.offset));\n }\n }\n else if (isAnimationLabel(name)) {\n isAnimationProp = true;\n name = name.substring(1);\n if (keySpan !== undefined) {\n keySpan = moveParseSourceSpan(keySpan, new AbsoluteSourceSpan(keySpan.start.offset + 1, keySpan.end.offset));\n }\n }\n if (isAnimationProp) {\n this._parseAnimation(name, expression, sourceSpan, absoluteOffset, keySpan, valueSpan, targetMatchableAttrs, targetProps);\n }\n else {\n this._parsePropertyAst(name, this._parseBinding(expression, isHost, valueSpan || sourceSpan, absoluteOffset), sourceSpan, keySpan, valueSpan, targetMatchableAttrs, targetProps);\n }\n }\n parsePropertyInterpolation(name, value, sourceSpan, valueSpan, targetMatchableAttrs, \n // TODO(atscott): keySpan is only optional here so VE template parser implementation does not\n // have to change This should be required when VE is removed.\n targetProps, keySpan) {\n const expr = this.parseInterpolation(value, valueSpan || sourceSpan);\n if (expr) {\n this._parsePropertyAst(name, expr, sourceSpan, keySpan, valueSpan, targetMatchableAttrs, targetProps);\n return true;\n }\n return false;\n }\n _parsePropertyAst(name, ast, sourceSpan, keySpan, valueSpan, targetMatchableAttrs, targetProps) {\n targetMatchableAttrs.push([name, ast.source]);\n targetProps.push(new ParsedProperty(name, ast, ParsedPropertyType.DEFAULT, sourceSpan, keySpan, valueSpan));\n }\n _parseAnimation(name, expression, sourceSpan, absoluteOffset, keySpan, valueSpan, targetMatchableAttrs, targetProps) {\n if (name.length === 0) {\n this._reportError('Animation trigger is missing', sourceSpan);\n }\n // This will occur when a @trigger is not paired with an expression.\n // For animations it is valid to not have an expression since */void\n // states will be applied by angular when the element is attached/detached\n const ast = this._parseBinding(expression || 'undefined', false, valueSpan || sourceSpan, absoluteOffset);\n targetMatchableAttrs.push([name, ast.source]);\n targetProps.push(new ParsedProperty(name, ast, ParsedPropertyType.ANIMATION, sourceSpan, keySpan, valueSpan));\n }\n _parseBinding(value, isHostBinding, sourceSpan, absoluteOffset) {\n const sourceInfo = (sourceSpan && sourceSpan.start || '(unknown)').toString();\n try {\n const ast = isHostBinding ?\n this._exprParser.parseSimpleBinding(value, sourceInfo, absoluteOffset, this._interpolationConfig) :\n this._exprParser.parseBinding(value, sourceInfo, absoluteOffset, this._interpolationConfig);\n if (ast)\n this._reportExpressionParserErrors(ast.errors, sourceSpan);\n this._checkPipes(ast, sourceSpan);\n return ast;\n }\n catch (e) {\n this._reportError(`${e}`, sourceSpan);\n return this._exprParser.wrapLiteralPrimitive('ERROR', sourceInfo, absoluteOffset);\n }\n }\n createBoundElementProperty(elementSelector, boundProp, skipValidation = false, mapPropertyName = true) {\n if (boundProp.isAnimation) {\n return new BoundElementProperty(boundProp.name, 4 /* Animation */, SecurityContext.NONE, boundProp.expression, null, boundProp.sourceSpan, boundProp.keySpan, boundProp.valueSpan);\n }\n let unit = null;\n let bindingType = undefined;\n let boundPropertyName = null;\n const parts = boundProp.name.split(PROPERTY_PARTS_SEPARATOR);\n let securityContexts = undefined;\n // Check for special cases (prefix style, attr, class)\n if (parts.length > 1) {\n if (parts[0] == ATTRIBUTE_PREFIX) {\n boundPropertyName = parts.slice(1).join(PROPERTY_PARTS_SEPARATOR);\n if (!skipValidation) {\n this._validatePropertyOrAttributeName(boundPropertyName, boundProp.sourceSpan, true);\n }\n securityContexts = calcPossibleSecurityContexts(this._schemaRegistry, elementSelector, boundPropertyName, true);\n const nsSeparatorIdx = boundPropertyName.indexOf(':');\n if (nsSeparatorIdx > -1) {\n const ns = boundPropertyName.substring(0, nsSeparatorIdx);\n const name = boundPropertyName.substring(nsSeparatorIdx + 1);\n boundPropertyName = mergeNsAndName(ns, name);\n }\n bindingType = 1 /* Attribute */;\n }\n else if (parts[0] == CLASS_PREFIX) {\n boundPropertyName = parts[1];\n bindingType = 2 /* Class */;\n securityContexts = [SecurityContext.NONE];\n }\n else if (parts[0] == STYLE_PREFIX) {\n unit = parts.length > 2 ? parts[2] : null;\n boundPropertyName = parts[1];\n bindingType = 3 /* Style */;\n securityContexts = [SecurityContext.STYLE];\n }\n }\n // If not a special case, use the full property name\n if (boundPropertyName === null) {\n const mappedPropName = this._schemaRegistry.getMappedPropName(boundProp.name);\n boundPropertyName = mapPropertyName ? mappedPropName : boundProp.name;\n securityContexts = calcPossibleSecurityContexts(this._schemaRegistry, elementSelector, mappedPropName, false);\n bindingType = 0 /* Property */;\n if (!skipValidation) {\n this._validatePropertyOrAttributeName(mappedPropName, boundProp.sourceSpan, false);\n }\n }\n return new BoundElementProperty(boundPropertyName, bindingType, securityContexts[0], boundProp.expression, unit, boundProp.sourceSpan, boundProp.keySpan, boundProp.valueSpan);\n }\n // TODO: keySpan should be required but was made optional to avoid changing VE parser.\n parseEvent(name, expression, sourceSpan, handlerSpan, targetMatchableAttrs, targetEvents, keySpan) {\n if (name.length === 0) {\n this._reportError(`Event name is missing in binding`, sourceSpan);\n }\n if (isAnimationLabel(name)) {\n name = name.substr(1);\n if (keySpan !== undefined) {\n keySpan = moveParseSourceSpan(keySpan, new AbsoluteSourceSpan(keySpan.start.offset + 1, keySpan.end.offset));\n }\n this._parseAnimationEvent(name, expression, sourceSpan, handlerSpan, targetEvents, keySpan);\n }\n else {\n this._parseRegularEvent(name, expression, sourceSpan, handlerSpan, targetMatchableAttrs, targetEvents, keySpan);\n }\n }\n calcPossibleSecurityContexts(selector, propName, isAttribute) {\n const prop = this._schemaRegistry.getMappedPropName(propName);\n return calcPossibleSecurityContexts(this._schemaRegistry, selector, prop, isAttribute);\n }\n _parseAnimationEvent(name, expression, sourceSpan, handlerSpan, targetEvents, keySpan) {\n const matches = splitAtPeriod(name, [name, '']);\n const eventName = matches[0];\n const phase = matches[1].toLowerCase();\n const ast = this._parseAction(expression, handlerSpan);\n targetEvents.push(new ParsedEvent(eventName, phase, 1 /* Animation */, ast, sourceSpan, handlerSpan, keySpan));\n if (eventName.length === 0) {\n this._reportError(`Animation event name is missing in binding`, sourceSpan);\n }\n if (phase) {\n if (phase !== 'start' && phase !== 'done') {\n this._reportError(`The provided animation output phase value \"${phase}\" for \"@${eventName}\" is not supported (use start or done)`, sourceSpan);\n }\n }\n else {\n this._reportError(`The animation trigger output event (@${eventName}) is missing its phase value name (start or done are currently supported)`, sourceSpan);\n }\n }\n _parseRegularEvent(name, expression, sourceSpan, handlerSpan, targetMatchableAttrs, targetEvents, keySpan) {\n // long format: 'target: eventName'\n const [target, eventName] = splitAtColon(name, [null, name]);\n const ast = this._parseAction(expression, handlerSpan);\n targetMatchableAttrs.push([name, ast.source]);\n targetEvents.push(new ParsedEvent(eventName, target, 0 /* Regular */, ast, sourceSpan, handlerSpan, keySpan));\n // Don't detect directives for event names for now,\n // so don't add the event name to the matchableAttrs\n }\n _parseAction(value, sourceSpan) {\n const sourceInfo = (sourceSpan && sourceSpan.start || '(unknown').toString();\n const absoluteOffset = (sourceSpan && sourceSpan.start) ? sourceSpan.start.offset : 0;\n try {\n const ast = this._exprParser.parseAction(value, sourceInfo, absoluteOffset, this._interpolationConfig);\n if (ast) {\n this._reportExpressionParserErrors(ast.errors, sourceSpan);\n }\n if (!ast || ast.ast instanceof EmptyExpr) {\n this._reportError(`Empty expressions are not allowed`, sourceSpan);\n return this._exprParser.wrapLiteralPrimitive('ERROR', sourceInfo, absoluteOffset);\n }\n this._checkPipes(ast, sourceSpan);\n return ast;\n }\n catch (e) {\n this._reportError(`${e}`, sourceSpan);\n return this._exprParser.wrapLiteralPrimitive('ERROR', sourceInfo, absoluteOffset);\n }\n }\n _reportError(message, sourceSpan, level = ParseErrorLevel.ERROR) {\n this.errors.push(new ParseError(sourceSpan, message, level));\n }\n _reportExpressionParserErrors(errors, sourceSpan) {\n for (const error of errors) {\n this._reportError(error.message, sourceSpan);\n }\n }\n // Make sure all the used pipes are known in `this.pipesByName`\n _checkPipes(ast, sourceSpan) {\n if (ast && this.pipesByName) {\n const collector = new PipeCollector();\n ast.visit(collector);\n collector.pipes.forEach((ast, pipeName) => {\n const pipeMeta = this.pipesByName.get(pipeName);\n if (!pipeMeta) {\n this._reportError(`The pipe '${pipeName}' could not be found`, new ParseSourceSpan(sourceSpan.start.moveBy(ast.span.start), sourceSpan.start.moveBy(ast.span.end)));\n }\n else {\n this._usedPipes.set(pipeName, pipeMeta);\n }\n });\n }\n }\n /**\n * @param propName the name of the property / attribute\n * @param sourceSpan\n * @param isAttr true when binding to an attribute\n */\n _validatePropertyOrAttributeName(propName, sourceSpan, isAttr) {\n const report = isAttr ? this._schemaRegistry.validateAttribute(propName) :\n this._schemaRegistry.validateProperty(propName);\n if (report.error) {\n this._reportError(report.msg, sourceSpan, ParseErrorLevel.ERROR);\n }\n }\n}\nclass PipeCollector extends RecursiveAstVisitor$1 {\n constructor() {\n super(...arguments);\n this.pipes = new Map();\n }\n visitPipe(ast, context) {\n this.pipes.set(ast.name, ast);\n ast.exp.visit(this);\n this.visitAll(ast.args, context);\n return null;\n }\n}\nfunction isAnimationLabel(name) {\n return name[0] == '@';\n}\nfunction calcPossibleSecurityContexts(registry, selector, propName, isAttribute) {\n const ctxs = [];\n CssSelector.parse(selector).forEach((selector) => {\n const elementNames = selector.element ? [selector.element] : registry.allKnownElementNames();\n const notElementNames = new Set(selector.notSelectors.filter(selector => selector.isElementSelector())\n .map((selector) => selector.element));\n const possibleElementNames = elementNames.filter(elementName => !notElementNames.has(elementName));\n ctxs.push(...possibleElementNames.map(elementName => registry.securityContext(elementName, propName, isAttribute)));\n });\n return ctxs.length === 0 ? [SecurityContext.NONE] : Array.from(new Set(ctxs)).sort();\n}\n/**\n * Compute a new ParseSourceSpan based off an original `sourceSpan` by using\n * absolute offsets from the specified `absoluteSpan`.\n *\n * @param sourceSpan original source span\n * @param absoluteSpan absolute source span to move to\n */\nfunction moveParseSourceSpan(sourceSpan, absoluteSpan) {\n // The difference of two absolute offsets provide the relative offset\n const startDiff = absoluteSpan.start - sourceSpan.start.offset;\n const endDiff = absoluteSpan.end - sourceSpan.end.offset;\n return new ParseSourceSpan(sourceSpan.start.moveBy(startDiff), sourceSpan.end.moveBy(endDiff), sourceSpan.fullStart.moveBy(startDiff), sourceSpan.details);\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst NG_CONTENT_SELECT_ATTR = 'select';\nconst LINK_ELEMENT = 'link';\nconst LINK_STYLE_REL_ATTR = 'rel';\nconst LINK_STYLE_HREF_ATTR = 'href';\nconst LINK_STYLE_REL_VALUE = 'stylesheet';\nconst STYLE_ELEMENT = 'style';\nconst SCRIPT_ELEMENT = 'script';\nconst NG_NON_BINDABLE_ATTR = 'ngNonBindable';\nconst NG_PROJECT_AS = 'ngProjectAs';\nfunction preparseElement(ast) {\n let selectAttr = null;\n let hrefAttr = null;\n let relAttr = null;\n let nonBindable = false;\n let projectAs = '';\n ast.attrs.forEach(attr => {\n const lcAttrName = attr.name.toLowerCase();\n if (lcAttrName == NG_CONTENT_SELECT_ATTR) {\n selectAttr = attr.value;\n }\n else if (lcAttrName == LINK_STYLE_HREF_ATTR) {\n hrefAttr = attr.value;\n }\n else if (lcAttrName == LINK_STYLE_REL_ATTR) {\n relAttr = attr.value;\n }\n else if (attr.name == NG_NON_BINDABLE_ATTR) {\n nonBindable = true;\n }\n else if (attr.name == NG_PROJECT_AS) {\n if (attr.value.length > 0) {\n projectAs = attr.value;\n }\n }\n });\n selectAttr = normalizeNgContentSelect(selectAttr);\n const nodeName = ast.name.toLowerCase();\n let type = PreparsedElementType.OTHER;\n if (isNgContent(nodeName)) {\n type = PreparsedElementType.NG_CONTENT;\n }\n else if (nodeName == STYLE_ELEMENT) {\n type = PreparsedElementType.STYLE;\n }\n else if (nodeName == SCRIPT_ELEMENT) {\n type = PreparsedElementType.SCRIPT;\n }\n else if (nodeName == LINK_ELEMENT && relAttr == LINK_STYLE_REL_VALUE) {\n type = PreparsedElementType.STYLESHEET;\n }\n return new PreparsedElement(type, selectAttr, hrefAttr, nonBindable, projectAs);\n}\nvar PreparsedElementType;\n(function (PreparsedElementType) {\n PreparsedElementType[PreparsedElementType[\"NG_CONTENT\"] = 0] = \"NG_CONTENT\";\n PreparsedElementType[PreparsedElementType[\"STYLE\"] = 1] = \"STYLE\";\n PreparsedElementType[PreparsedElementType[\"STYLESHEET\"] = 2] = \"STYLESHEET\";\n PreparsedElementType[PreparsedElementType[\"SCRIPT\"] = 3] = \"SCRIPT\";\n PreparsedElementType[PreparsedElementType[\"OTHER\"] = 4] = \"OTHER\";\n})(PreparsedElementType || (PreparsedElementType = {}));\nclass PreparsedElement {\n constructor(type, selectAttr, hrefAttr, nonBindable, projectAs) {\n this.type = type;\n this.selectAttr = selectAttr;\n this.hrefAttr = hrefAttr;\n this.nonBindable = nonBindable;\n this.projectAs = projectAs;\n }\n}\nfunction normalizeNgContentSelect(selectAttr) {\n if (selectAttr === null || selectAttr.length === 0) {\n return '*';\n }\n return selectAttr;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst BIND_NAME_REGEXP = /^(?:(?:(?:(bind-)|(let-)|(ref-|#)|(on-)|(bindon-)|(@))(.*))|\\[\\(([^\\)]+)\\)\\]|\\[([^\\]]+)\\]|\\(([^\\)]+)\\))$/;\n// Group 1 = \"bind-\"\nconst KW_BIND_IDX = 1;\n// Group 2 = \"let-\"\nconst KW_LET_IDX = 2;\n// Group 3 = \"ref-/#\"\nconst KW_REF_IDX = 3;\n// Group 4 = \"on-\"\nconst KW_ON_IDX = 4;\n// Group 5 = \"bindon-\"\nconst KW_BINDON_IDX = 5;\n// Group 6 = \"@\"\nconst KW_AT_IDX = 6;\n// Group 7 = the identifier after \"bind-\", \"let-\", \"ref-/#\", \"on-\", \"bindon-\" or \"@\"\nconst IDENT_KW_IDX = 7;\n// Group 8 = identifier inside [()]\nconst IDENT_BANANA_BOX_IDX = 8;\n// Group 9 = identifier inside []\nconst IDENT_PROPERTY_IDX = 9;\n// Group 10 = identifier inside ()\nconst IDENT_EVENT_IDX = 10;\nconst TEMPLATE_ATTR_PREFIX$1 = '*';\nconst CLASS_ATTR = 'class';\nlet _TEXT_CSS_SELECTOR;\nfunction TEXT_CSS_SELECTOR() {\n if (!_TEXT_CSS_SELECTOR) {\n _TEXT_CSS_SELECTOR = CssSelector.parse('*')[0];\n }\n return _TEXT_CSS_SELECTOR;\n}\nclass TemplateParseError extends ParseError {\n constructor(message, span, level) {\n super(span, message, level);\n }\n}\nclass TemplateParseResult {\n constructor(templateAst, usedPipes, errors) {\n this.templateAst = templateAst;\n this.usedPipes = usedPipes;\n this.errors = errors;\n }\n}\nclass TemplateParser {\n constructor(_config, _reflector, _exprParser, _schemaRegistry, _htmlParser, _console, transforms) {\n this._config = _config;\n this._reflector = _reflector;\n this._exprParser = _exprParser;\n this._schemaRegistry = _schemaRegistry;\n this._htmlParser = _htmlParser;\n this._console = _console;\n this.transforms = transforms;\n }\n get expressionParser() {\n return this._exprParser;\n }\n parse(component, template, directives, pipes, schemas, templateUrl, preserveWhitespaces) {\n var _a;\n const result = this.tryParse(component, template, directives, pipes, schemas, templateUrl, preserveWhitespaces);\n const warnings = result.errors.filter(error => error.level === ParseErrorLevel.WARNING);\n const errors = result.errors.filter(error => error.level === ParseErrorLevel.ERROR);\n if (warnings.length > 0) {\n (_a = this._console) === null || _a === void 0 ? void 0 : _a.warn(`Template parse warnings:\\n${warnings.join('\\n')}`);\n }\n if (errors.length > 0) {\n const errorString = errors.join('\\n');\n throw syntaxError(`Template parse errors:\\n${errorString}`, errors);\n }\n return { template: result.templateAst, pipes: result.usedPipes };\n }\n tryParse(component, template, directives, pipes, schemas, templateUrl, preserveWhitespaces) {\n let htmlParseResult = typeof template === 'string' ?\n this._htmlParser.parse(template, templateUrl, {\n tokenizeExpansionForms: true,\n interpolationConfig: this.getInterpolationConfig(component)\n }) :\n template;\n if (!preserveWhitespaces) {\n htmlParseResult = removeWhitespaces(htmlParseResult);\n }\n return this.tryParseHtml(this.expandHtml(htmlParseResult), component, directives, pipes, schemas);\n }\n tryParseHtml(htmlAstWithErrors, component, directives, pipes, schemas) {\n let result;\n const errors = htmlAstWithErrors.errors;\n const usedPipes = [];\n if (htmlAstWithErrors.rootNodes.length > 0) {\n const uniqDirectives = removeSummaryDuplicates(directives);\n const uniqPipes = removeSummaryDuplicates(pipes);\n const providerViewContext = new ProviderViewContext(this._reflector, component);\n let interpolationConfig = undefined;\n if (component.template && component.template.interpolation) {\n interpolationConfig = {\n start: component.template.interpolation[0],\n end: component.template.interpolation[1]\n };\n }\n const bindingParser = new BindingParser(this._exprParser, interpolationConfig, this._schemaRegistry, uniqPipes, errors);\n const parseVisitor = new TemplateParseVisitor(this._reflector, this._config, providerViewContext, uniqDirectives, bindingParser, this._schemaRegistry, schemas, errors);\n result = visitAll$1(parseVisitor, htmlAstWithErrors.rootNodes, EMPTY_ELEMENT_CONTEXT);\n errors.push(...providerViewContext.errors);\n usedPipes.push(...bindingParser.getUsedPipes());\n }\n else {\n result = [];\n }\n this._assertNoReferenceDuplicationOnTemplate(result, errors);\n if (errors.length > 0) {\n return new TemplateParseResult(result, usedPipes, errors);\n }\n if (this.transforms) {\n this.transforms.forEach((transform) => {\n result = templateVisitAll(transform, result);\n });\n }\n return new TemplateParseResult(result, usedPipes, errors);\n }\n expandHtml(htmlAstWithErrors, forced = false) {\n const errors = htmlAstWithErrors.errors;\n if (errors.length == 0 || forced) {\n // Transform ICU messages to angular directives\n const expandedHtmlAst = expandNodes(htmlAstWithErrors.rootNodes);\n errors.push(...expandedHtmlAst.errors);\n htmlAstWithErrors = new ParseTreeResult(expandedHtmlAst.nodes, errors);\n }\n return htmlAstWithErrors;\n }\n getInterpolationConfig(component) {\n if (component.template) {\n return InterpolationConfig.fromArray(component.template.interpolation);\n }\n return undefined;\n }\n /** @internal */\n _assertNoReferenceDuplicationOnTemplate(result, errors) {\n const existingReferences = [];\n result.filter(element => !!element.references)\n .forEach(element => element.references.forEach((reference) => {\n const name = reference.name;\n if (existingReferences.indexOf(name) < 0) {\n existingReferences.push(name);\n }\n else {\n const error = new TemplateParseError(`Reference \"#${name}\" is defined several times`, reference.sourceSpan, ParseErrorLevel.ERROR);\n errors.push(error);\n }\n }));\n }\n}\nclass TemplateParseVisitor {\n constructor(reflector, config, providerViewContext, directives, _bindingParser, _schemaRegistry, _schemas, _targetErrors) {\n this.reflector = reflector;\n this.config = config;\n this.providerViewContext = providerViewContext;\n this._bindingParser = _bindingParser;\n this._schemaRegistry = _schemaRegistry;\n this._schemas = _schemas;\n this._targetErrors = _targetErrors;\n this.selectorMatcher = new SelectorMatcher();\n this.directivesIndex = new Map();\n this.ngContentCount = 0;\n // Note: queries start with id 1 so we can use the number in a Bloom filter!\n this.contentQueryStartId = providerViewContext.component.viewQueries.length + 1;\n directives.forEach((directive, index) => {\n const selector = CssSelector.parse(directive.selector);\n this.selectorMatcher.addSelectables(selector, directive);\n this.directivesIndex.set(directive, index);\n });\n }\n visitExpansion(expansion, context) {\n return null;\n }\n visitExpansionCase(expansionCase, context) {\n return null;\n }\n visitText(text, parent) {\n const ngContentIndex = parent.findNgContentIndex(TEXT_CSS_SELECTOR());\n const valueNoNgsp = replaceNgsp(text.value);\n const expr = this._bindingParser.parseInterpolation(valueNoNgsp, text.sourceSpan);\n return expr ? new BoundTextAst(expr, ngContentIndex, text.sourceSpan) :\n new TextAst(valueNoNgsp, ngContentIndex, text.sourceSpan);\n }\n visitAttribute(attribute, context) {\n return new AttrAst(attribute.name, attribute.value, attribute.sourceSpan);\n }\n visitComment(comment, context) {\n return null;\n }\n visitElement(element, parent) {\n const queryStartIndex = this.contentQueryStartId;\n const elName = element.name;\n const preparsedElement = preparseElement(element);\n if (preparsedElement.type === PreparsedElementType.SCRIPT ||\n preparsedElement.type === PreparsedElementType.STYLE) {\n // Skipping |