{"ast":null,"code":"import _asyncToGenerator from \"/home/poule/encrypted/stockage-syncable/www/development/html/ng-implementation/implem/node_modules/@babel/runtime/helpers/esm/asyncToGenerator.js\";\n/**\n * @license Angular v20.1.4\n * (c) 2010-2025 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport { attachInjectFlag, _global, ɵɵdefineInjectable as __defineInjectable, ɵɵdefineInjector as __defineInjector, ɵɵinject as __inject, ɵɵinvalidFactoryDep as __invalidFactoryDep, resolveForwardRef, newArray, EMPTY_OBJ, assertString, assertNotEqual, FLAGS, assertEqual, isInCheckNoChangesMode, PREORDER_HOOK_FLAGS, assertFirstCreatePass, assertDefined, throwError, assertNumber, assertGreaterThan, HEADER_OFFSET, DECLARATION_VIEW, NG_FACTORY_DEF, isForwardRef, getFactoryDef, assertIndexInRange, assertTNodeForLView, enterDI, runInInjectorProfilerContext, getCurrentTNode, getLView, emitInjectorToCreateInstanceEvent, emitInstanceCreatedByInjectorEvent, throwProviderNotFoundError, leaveDI, assertNodeInjector, stringifyForError, cyclicDependencyErrorWithDetails, cyclicDependencyError, setInjectorProfilerContext, setInjectImplementation, assertDirectiveDef, NG_ELEMENT_ID, convertToBitFlags, isRootView, T_HOST, TVIEW, injectRootLimpMode, isComponentDef, EMBEDDED_VIEW_INJECTOR, INJECTOR$1 as INJECTOR, DECLARATION_COMPONENT_VIEW, isComponentHost, RuntimeError, NG_PROV_DEF, getClosureSafeProperty, getNativeByTNode, flatten, arrayEquals, ID, isLView, assertDomNode, unwrapRNode, getComponentLViewByIndex, CONTEXT, EMPTY_ARRAY, assertLView, HOST, CHILD_HEAD, NEXT, isLContainer, getLViewParent, Injector, CLEANUP, getComponentDef, getDirectiveDef, InjectionToken, inject, isInSkipHydrationBlock as isInSkipHydrationBlock$1, HYDRATION, isContentQueryHost, setCurrentQueryIndex, XSS_SECURITY_URL, renderStringify, ENVIRONMENT, makeEnvironmentProviders, isDirectiveHost, formatRuntimeError, resetPreOrderHookFlags, PARENT, RENDERER, CHILD_TAIL, assertSame, assertFirstUpdatePass, getSelectedIndex, getTView, assertIndexInDeclRange, setSelectedIndex, assertLContainer, MOVED_VIEWS, isDestroyed, REACTIVE_TEMPLATE_CONSUMER, DECLARATION_LCONTAINER, QUERIES, assertNotReactive, ON_DESTROY_HOOKS, assertFunction, EFFECTS, assertProjectionSlots, NATIVE, assertParentView, CONTAINER_HEADER_OFFSET, assertNotSame, setCurrentDirectiveIndex, setCurrentTNode, getElementDepthCount, increaseElementDepthCount, wasLastNodeCreated, isCurrentTNodeParent, setCurrentTNodeAsNotParent, assertHasParent, INTERNAL_APPLICATION_ERROR_HANDLER, stringify, getCurrentDirectiveIndex, unwrapLView, isCreationMode, enterView, leaveView, AFTER_RENDER_SEQUENCES_TO_ADD, markAncestorsForTraversal, markViewForRefresh, setIsRefreshingViews, isExhaustiveCheckNoChanges, requiresRefreshOrTraversal, setIsInCheckNoChangesMode, CheckNoChangesMode, setBindingIndex, EFFECTS_TO_SCHEDULE, viewAttachedToChangeDetector, setBindingRootForHostBindings, isRefreshingViews, removeFromArray, addToArray, updateAncestorTraversalFlagsOnAttach, storeLViewOnDestroy, VIEW_REFS, assertGreaterThanOrEqual, isInI18nBlock, assertTNodeForTView, getCurrentParentTNode, getCurrentTNodePlaceholderOk, assertTNode, assertTIcu, assertNumberInRange, DEHYDRATED_VIEWS, getNgModuleDef, getPipeDef as getPipeDef$1, getNgModuleDefOrThrow, isStandalone, concatStringsWithSpace, assertInjectImplementationNotEqual, emitInjectEvent, getConstant, assertLessThan, getOrCreateTViewCleanup, getOrCreateLViewCleanup, assertNotDefined, nextBindingIndex, getSelectedTNode, getDirectiveDefOrThrow, getTNode, assertComponentType, debugStringifyTypeForError, ChangeDetectionScheduler, EnvironmentInjector, SVG_NAMESPACE, MATH_ML_NAMESPACE, viewAttachedToContainer, storeCleanupWithContext, signal, createInjectorWithoutInjectorInstances, R3Injector, getNullInjector, internalImportProvidersFrom, initNgDevMode, fillProperties, getBindingsEnabled, lastNodeWasCreated, isInInjectionContext, DestroyRef, PendingTasksInternal, noop, ErrorHandler, assertNotInReactiveContext, assertInInjectionContext, ViewContext, removeLViewOnDestroy, walkUpViews, getNativeByIndex, assertElement, arrayInsert2, arraySplice, setInjectorProfiler, NullInjector, ENVIRONMENT_INITIALIZER, INJECTOR_DEF_TYPES, walkProviderTree, getInjectorDef, deepForEach, isTypeProvider, isSignal, runInInjectionContext, ZONELESS_ENABLED, EffectScheduler, PendingTasks, assertTNodeCreationIndex, isSkipHydrationRootTNode, leaveSkipHydrationBlock, decreaseElementDepthCount, getNamespace, enterSkipHydrationBlock, getCurrentDirectiveDef, assertIndexInExpandoRange, getBindingIndex, assertOneOf, setInI18nBlock, nextContextImpl, getCurrentQueryIndex, getContextLView, load, keyValueArrayIndexOf, keyValueArraySet, keyValueArrayGet, incrementBindingIndex, isWritableSignal, store, providerToFactory, emitProviderConfiguredEvent, isClassProvider, getBindingRoot, NG_COMP_DEF, ɵɵresetView as __resetView, ɵɵnamespaceHTML as __namespaceHTML, ɵɵnamespaceMathML as __namespaceMathML, ɵɵnamespaceSVG as __namespaceSVG, ɵɵenableBindings as __enableBindings, ɵɵdisableBindings as __disableBindings, ɵɵrestoreView as __restoreView, forwardRef, NG_MOD_DEF, NG_INJ_DEF, NG_DIR_DEF, NG_PIPE_DEF, ZONELESS_SCHEDULER_DISABLED, SCHEDULE_IN_ROOT_ZONE, PROVIDED_ZONELESS, getNativeByTNodeOrNull } from './root_effect_scheduler.mjs';\nimport { setActiveConsumer, SIGNAL, consumerDestroy, REACTIVE_NODE, consumerPollProducersForChange, consumerBeforeComputation, getActiveConsumer, consumerAfterComputation, createComputed, setThrowInvalidWriteToSignalError } from './signal.mjs';\nimport { Subject, Subscription } from 'rxjs';\nimport { setActiveConsumer as setActiveConsumer$1 } from '@angular/core/primitives/signals';\nimport { map } from 'rxjs/operators';\nimport { Attribute as Attribute$1 } from './attribute.mjs';\n\n/**\n * Convince closure compiler that the wrapped function has no side-effects.\n *\n * Closure compiler always assumes that `toString` has no side-effects. We use this quirk to\n * allow us to execute a function but have closure compiler mark the call as no-side-effects.\n * It is important that the return value for the `noSideEffects` function be assigned\n * to something which is retained otherwise the call to `noSideEffects` will be removed by closure\n * compiler.\n */\nfunction noSideEffects(fn) {\n return {\n toString: fn\n }.toString();\n}\nconst ANNOTATIONS = '__annotations__';\nconst PARAMETERS = '__parameters__';\nconst PROP_METADATA = '__prop__metadata__';\n/**\n * @suppress {globalThis}\n */\nfunction makeDecorator(name, props, parentClass, additionalProcessing, typeFn) {\n return noSideEffects(() => {\n const metaCtor = makeMetadataCtor(props);\n function DecoratorFactory(...args) {\n if (this instanceof DecoratorFactory) {\n metaCtor.call(this, ...args);\n return this;\n }\n const annotationInstance = new DecoratorFactory(...args);\n return function TypeDecorator(cls) {\n if (typeFn) typeFn(cls, ...args);\n // Use of Object.defineProperty is important since it creates non-enumerable property which\n // prevents the property is copied during subclassing.\n const annotations = cls.hasOwnProperty(ANNOTATIONS) ? cls[ANNOTATIONS] : Object.defineProperty(cls, ANNOTATIONS, {\n value: []\n })[ANNOTATIONS];\n annotations.push(annotationInstance);\n return cls;\n };\n }\n if (parentClass) {\n DecoratorFactory.prototype = Object.create(parentClass.prototype);\n }\n DecoratorFactory.prototype.ngMetadataName = name;\n DecoratorFactory.annotationCls = DecoratorFactory;\n return DecoratorFactory;\n });\n}\nfunction makeMetadataCtor(props) {\n return function ctor(...args) {\n if (props) {\n const values = props(...args);\n for (const propName in values) {\n this[propName] = values[propName];\n }\n }\n };\n}\nfunction makeParamDecorator(name, props, parentClass) {\n return noSideEffects(() => {\n const metaCtor = makeMetadataCtor(props);\n function ParamDecoratorFactory(...args) {\n if (this instanceof ParamDecoratorFactory) {\n metaCtor.apply(this, args);\n return this;\n }\n const annotationInstance = new ParamDecoratorFactory(...args);\n ParamDecorator.annotation = annotationInstance;\n return ParamDecorator;\n function ParamDecorator(cls, unusedKey, index) {\n // Use of Object.defineProperty is important since it creates non-enumerable property which\n // prevents the property is copied during subclassing.\n const parameters = cls.hasOwnProperty(PARAMETERS) ? cls[PARAMETERS] : Object.defineProperty(cls, PARAMETERS, {\n value: []\n })[PARAMETERS];\n // there might be gaps if some in between parameters do not have annotations.\n // we pad with nulls.\n while (parameters.length <= index) {\n parameters.push(null);\n }\n (parameters[index] = parameters[index] || []).push(annotationInstance);\n return cls;\n }\n }\n ParamDecoratorFactory.prototype.ngMetadataName = name;\n ParamDecoratorFactory.annotationCls = ParamDecoratorFactory;\n return ParamDecoratorFactory;\n });\n}\nfunction makePropDecorator(name, props, parentClass, additionalProcessing) {\n return noSideEffects(() => {\n const metaCtor = makeMetadataCtor(props);\n function PropDecoratorFactory(...args) {\n if (this instanceof PropDecoratorFactory) {\n metaCtor.apply(this, args);\n return this;\n }\n const decoratorInstance = new PropDecoratorFactory(...args);\n function PropDecorator(target, name) {\n // target is undefined with standard decorators. This case is not supported and will throw\n // if this decorator is used in JIT mode with standard decorators.\n if (target === undefined) {\n throw new Error('Standard Angular field decorators are not supported in JIT mode.');\n }\n const constructor = target.constructor;\n // Use of Object.defineProperty is important because it creates a non-enumerable property\n // which prevents the property from being copied during subclassing.\n const meta = constructor.hasOwnProperty(PROP_METADATA) ? constructor[PROP_METADATA] : Object.defineProperty(constructor, PROP_METADATA, {\n value: {}\n })[PROP_METADATA];\n meta[name] = meta.hasOwnProperty(name) && meta[name] || [];\n meta[name].unshift(decoratorInstance);\n }\n return PropDecorator;\n }\n if (parentClass) {\n PropDecoratorFactory.prototype = Object.create(parentClass.prototype);\n }\n PropDecoratorFactory.prototype.ngMetadataName = name;\n PropDecoratorFactory.annotationCls = PropDecoratorFactory;\n return PropDecoratorFactory;\n });\n}\n\n/**\n * Inject decorator and metadata.\n *\n * @Annotation\n * @publicApi\n */\nconst Inject = attachInjectFlag(\n// Disable tslint because `DecoratorFlags` is a const enum which gets inlined.\nmakeParamDecorator('Inject', token => ({\n token\n})), -1 /* DecoratorFlags.Inject */);\n/**\n * Optional decorator and metadata.\n *\n * @Annotation\n * @publicApi\n */\nconst Optional =\n// Disable tslint because `InternalInjectFlags` is a const enum which gets inlined.\n// tslint:disable-next-line: no-toplevel-property-access\nattachInjectFlag(makeParamDecorator('Optional'), 8 /* InternalInjectFlags.Optional */);\n/**\n * Self decorator and metadata.\n *\n * @Annotation\n * @publicApi\n */\nconst Self =\n// Disable tslint because `InternalInjectFlags` is a const enum which gets inlined.\n// tslint:disable-next-line: no-toplevel-property-access\nattachInjectFlag(makeParamDecorator('Self'), 2 /* InternalInjectFlags.Self */);\n/**\n * `SkipSelf` decorator and metadata.\n *\n * @Annotation\n * @publicApi\n */\nconst SkipSelf =\n// Disable tslint because `InternalInjectFlags` is a const enum which gets inlined.\n// tslint:disable-next-line: no-toplevel-property-access\nattachInjectFlag(makeParamDecorator('SkipSelf'), 4 /* InternalInjectFlags.SkipSelf */);\n/**\n * Host decorator and metadata.\n *\n * @Annotation\n * @publicApi\n */\nconst Host =\n// Disable tslint because `InternalInjectFlags` is a const enum which gets inlined.\n// tslint:disable-next-line: no-toplevel-property-access\nattachInjectFlag(makeParamDecorator('Host'), 1 /* InternalInjectFlags.Host */);\nfunction getCompilerFacade(request) {\n const globalNg = _global['ng'];\n if (globalNg && globalNg.ɵcompilerFacade) {\n return globalNg.ɵcompilerFacade;\n }\n if (typeof ngDevMode === 'undefined' || ngDevMode) {\n // Log the type as an error so that a developer can easily navigate to the type from the\n // console.\n console.error(`JIT compilation failed for ${request.kind}`, request.type);\n let message = `The ${request.kind} '${request.type.name}' needs to be compiled using the JIT compiler, but '@angular/compiler' is not available.\\n\\n`;\n if (request.usage === 1 /* JitCompilerUsage.PartialDeclaration */) {\n message += `The ${request.kind} is part of a library that has been partially compiled.\\n`;\n message += `However, the Angular Linker has not processed the library such that JIT compilation is used as fallback.\\n`;\n message += '\\n';\n message += `Ideally, the library is processed using the Angular Linker to become fully AOT compiled.\\n`;\n } else {\n message += `JIT compilation is discouraged for production use-cases! Consider using AOT mode instead.\\n`;\n }\n message += `Alternatively, the JIT compiler should be loaded by bootstrapping using '@angular/platform-browser-dynamic' or '@angular/platform-server',\\n`;\n message += `or manually provide the compiler with 'import \"@angular/compiler\";' before bootstrapping.`;\n throw new Error(message);\n } else {\n throw new Error('JIT compiler unavailable');\n }\n}\n\n/**\n * A mapping of the @angular/core API surface used in generated expressions to the actual symbols.\n *\n * This should be kept up to date with the public exports of @angular/core.\n */\nconst angularCoreDiEnv = {\n 'ɵɵdefineInjectable': __defineInjectable,\n 'ɵɵdefineInjector': __defineInjector,\n 'ɵɵinject': __inject,\n 'ɵɵinvalidFactoryDep': __invalidFactoryDep,\n 'resolveForwardRef': resolveForwardRef\n};\n\n/**\n * @description\n *\n * Represents a type that a Component or other object is instances of.\n *\n * An example of a `Type` is `MyCustomComponent` class, which in JavaScript is represented by\n * the `MyCustomComponent` constructor function.\n *\n * @publicApi\n */\nconst Type = Function;\nfunction isType(v) {\n return typeof v === 'function';\n}\n\n/*\n * #########################\n * Attention: These Regular expressions have to hold even if the code is minified!\n * ##########################\n */\n/**\n * Regular expression that detects pass-through constructors for ES5 output. This Regex\n * intends to capture the common delegation pattern emitted by TypeScript and Babel. Also\n * it intends to capture the pattern where existing constructors have been downleveled from\n * ES2015 to ES5 using TypeScript w/ downlevel iteration. e.g.\n *\n * ```ts\n * function MyClass() {\n * var _this = _super.apply(this, arguments) || this;\n * ```\n *\n * downleveled to ES5 with `downlevelIteration` for TypeScript < 4.2:\n * ```ts\n * function MyClass() {\n * var _this = _super.apply(this, __spread(arguments)) || this;\n * ```\n *\n * or downleveled to ES5 with `downlevelIteration` for TypeScript >= 4.2:\n * ```ts\n * function MyClass() {\n * var _this = _super.apply(this, __spreadArray([], __read(arguments), false)) || this;\n * ```\n *\n * More details can be found in: https://github.com/angular/angular/issues/38453.\n */\nconst ES5_DELEGATE_CTOR = /^function\\s+\\S+\\(\\)\\s*{[\\s\\S]+\\.apply\\(this,\\s*(arguments|(?:[^()]+\\(\\[\\],)?[^()]+\\(arguments\\).*)\\)/;\n/** Regular expression that detects ES2015 classes which extend from other classes. */\nconst ES2015_INHERITED_CLASS = /^class\\s+[A-Za-z\\d$_]*\\s*extends\\s+[^{]+{/;\n/**\n * Regular expression that detects ES2015 classes which extend from other classes and\n * have an explicit constructor defined.\n */\nconst ES2015_INHERITED_CLASS_WITH_CTOR = /^class\\s+[A-Za-z\\d$_]*\\s*extends\\s+[^{]+{[\\s\\S]*constructor\\s*\\(/;\n/**\n * Regular expression that detects ES2015 classes which extend from other classes\n * and inherit a constructor.\n */\nconst ES2015_INHERITED_CLASS_WITH_DELEGATE_CTOR = /^class\\s+[A-Za-z\\d$_]*\\s*extends\\s+[^{]+{[\\s\\S]*constructor\\s*\\(\\)\\s*{[^}]*super\\(\\.\\.\\.arguments\\)/;\n/**\n * Determine whether a stringified type is a class which delegates its constructor\n * to its parent.\n *\n * This is not trivial since compiled code can actually contain a constructor function\n * even if the original source code did not. For instance, when the child class contains\n * an initialized instance property.\n */\nfunction isDelegateCtor(typeStr) {\n return ES5_DELEGATE_CTOR.test(typeStr) || ES2015_INHERITED_CLASS_WITH_DELEGATE_CTOR.test(typeStr) || ES2015_INHERITED_CLASS.test(typeStr) && !ES2015_INHERITED_CLASS_WITH_CTOR.test(typeStr);\n}\nclass ReflectionCapabilities {\n _reflect;\n constructor(reflect) {\n this._reflect = reflect || _global['Reflect'];\n }\n factory(t) {\n return (...args) => new t(...args);\n }\n /** @internal */\n _zipTypesAndAnnotations(paramTypes, paramAnnotations) {\n let result;\n if (typeof paramTypes === 'undefined') {\n result = newArray(paramAnnotations.length);\n } else {\n result = newArray(paramTypes.length);\n }\n for (let i = 0; i < result.length; i++) {\n // TS outputs Object for parameters without types, while Traceur omits\n // the annotations. For now we preserve the Traceur behavior to aid\n // migration, but this can be revisited.\n if (typeof paramTypes === 'undefined') {\n result[i] = [];\n } else if (paramTypes[i] && paramTypes[i] != Object) {\n result[i] = [paramTypes[i]];\n } else {\n result[i] = [];\n }\n if (paramAnnotations && paramAnnotations[i] != null) {\n result[i] = result[i].concat(paramAnnotations[i]);\n }\n }\n return result;\n }\n _ownParameters(type, parentCtor) {\n const typeStr = type.toString();\n // If we have no decorators, we only have function.length as metadata.\n // In that case, to detect whether a child class declared an own constructor or not,\n // we need to look inside of that constructor to check whether it is\n // just calling the parent.\n // This also helps to work around for https://github.com/Microsoft/TypeScript/issues/12439\n // that sets 'design:paramtypes' to []\n // if a class inherits from another class but has no ctor declared itself.\n if (isDelegateCtor(typeStr)) {\n return null;\n }\n // Prefer the direct API.\n if (type.parameters && type.parameters !== parentCtor.parameters) {\n return type.parameters;\n }\n // API of tsickle for lowering decorators to properties on the class.\n const tsickleCtorParams = type.ctorParameters;\n if (tsickleCtorParams && tsickleCtorParams !== parentCtor.ctorParameters) {\n // Newer tsickle uses a function closure\n // Retain the non-function case for compatibility with older tsickle\n const ctorParameters = typeof tsickleCtorParams === 'function' ? tsickleCtorParams() : tsickleCtorParams;\n const paramTypes = ctorParameters.map(ctorParam => ctorParam && ctorParam.type);\n const paramAnnotations = ctorParameters.map(ctorParam => ctorParam && convertTsickleDecoratorIntoMetadata(ctorParam.decorators));\n return this._zipTypesAndAnnotations(paramTypes, paramAnnotations);\n }\n // API for metadata created by invoking the decorators.\n const paramAnnotations = type.hasOwnProperty(PARAMETERS) && type[PARAMETERS];\n const paramTypes = this._reflect && this._reflect.getOwnMetadata && this._reflect.getOwnMetadata('design:paramtypes', type);\n if (paramTypes || paramAnnotations) {\n return this._zipTypesAndAnnotations(paramTypes, paramAnnotations);\n }\n // If a class has no decorators, at least create metadata\n // based on function.length.\n // Note: We know that this is a real constructor as we checked\n // the content of the constructor above.\n return newArray(type.length);\n }\n parameters(type) {\n // Note: only report metadata if we have at least one class decorator\n // to stay in sync with the static reflector.\n if (!isType(type)) {\n return [];\n }\n const parentCtor = getParentCtor(type);\n let parameters = this._ownParameters(type, parentCtor);\n if (!parameters && parentCtor !== Object) {\n parameters = this.parameters(parentCtor);\n }\n return parameters || [];\n }\n _ownAnnotations(typeOrFunc, parentCtor) {\n // Prefer the direct API.\n if (typeOrFunc.annotations && typeOrFunc.annotations !== parentCtor.annotations) {\n let annotations = typeOrFunc.annotations;\n if (typeof annotations === 'function' && annotations.annotations) {\n annotations = annotations.annotations;\n }\n return annotations;\n }\n // API of tsickle for lowering decorators to properties on the class.\n if (typeOrFunc.decorators && typeOrFunc.decorators !== parentCtor.decorators) {\n return convertTsickleDecoratorIntoMetadata(typeOrFunc.decorators);\n }\n // API for metadata created by invoking the decorators.\n if (typeOrFunc.hasOwnProperty(ANNOTATIONS)) {\n return typeOrFunc[ANNOTATIONS];\n }\n return null;\n }\n annotations(typeOrFunc) {\n if (!isType(typeOrFunc)) {\n return [];\n }\n const parentCtor = getParentCtor(typeOrFunc);\n const ownAnnotations = this._ownAnnotations(typeOrFunc, parentCtor) || [];\n const parentAnnotations = parentCtor !== Object ? this.annotations(parentCtor) : [];\n return parentAnnotations.concat(ownAnnotations);\n }\n _ownPropMetadata(typeOrFunc, parentCtor) {\n // Prefer the direct API.\n if (typeOrFunc.propMetadata && typeOrFunc.propMetadata !== parentCtor.propMetadata) {\n let propMetadata = typeOrFunc.propMetadata;\n if (typeof propMetadata === 'function' && propMetadata.propMetadata) {\n propMetadata = propMetadata.propMetadata;\n }\n return propMetadata;\n }\n // API of tsickle for lowering decorators to properties on the class.\n if (typeOrFunc.propDecorators && typeOrFunc.propDecorators !== parentCtor.propDecorators) {\n const propDecorators = typeOrFunc.propDecorators;\n const propMetadata = {};\n Object.keys(propDecorators).forEach(prop => {\n propMetadata[prop] = convertTsickleDecoratorIntoMetadata(propDecorators[prop]);\n });\n return propMetadata;\n }\n // API for metadata created by invoking the decorators.\n if (typeOrFunc.hasOwnProperty(PROP_METADATA)) {\n return typeOrFunc[PROP_METADATA];\n }\n return null;\n }\n propMetadata(typeOrFunc) {\n if (!isType(typeOrFunc)) {\n return {};\n }\n const parentCtor = getParentCtor(typeOrFunc);\n const propMetadata = {};\n if (parentCtor !== Object) {\n const parentPropMetadata = this.propMetadata(parentCtor);\n Object.keys(parentPropMetadata).forEach(propName => {\n propMetadata[propName] = parentPropMetadata[propName];\n });\n }\n const ownPropMetadata = this._ownPropMetadata(typeOrFunc, parentCtor);\n if (ownPropMetadata) {\n Object.keys(ownPropMetadata).forEach(propName => {\n const decorators = [];\n if (propMetadata.hasOwnProperty(propName)) {\n decorators.push(...propMetadata[propName]);\n }\n decorators.push(...ownPropMetadata[propName]);\n propMetadata[propName] = decorators;\n });\n }\n return propMetadata;\n }\n ownPropMetadata(typeOrFunc) {\n if (!isType(typeOrFunc)) {\n return {};\n }\n return this._ownPropMetadata(typeOrFunc, getParentCtor(typeOrFunc)) || {};\n }\n hasLifecycleHook(type, lcProperty) {\n return type instanceof Type && lcProperty in type.prototype;\n }\n}\nfunction convertTsickleDecoratorIntoMetadata(decoratorInvocations) {\n if (!decoratorInvocations) {\n return [];\n }\n return decoratorInvocations.map(decoratorInvocation => {\n const decoratorType = decoratorInvocation.type;\n const annotationCls = decoratorType.annotationCls;\n const annotationArgs = decoratorInvocation.args ? decoratorInvocation.args : [];\n return new annotationCls(...annotationArgs);\n });\n}\nfunction getParentCtor(ctor) {\n const parentProto = ctor.prototype ? Object.getPrototypeOf(ctor.prototype) : null;\n const parentCtor = parentProto ? parentProto.constructor : null;\n // Note: We always use `Object` as the null value\n // to simplify checking later on.\n return parentCtor || Object;\n}\n\n/**\n * Represents a basic change from a previous to a new value for a single\n * property on a directive instance. Passed as a value in a\n * {@link SimpleChanges} object to the `ngOnChanges` hook.\n *\n * @see {@link OnChanges}\n *\n * @publicApi\n */\nclass SimpleChange {\n previousValue;\n currentValue;\n firstChange;\n constructor(previousValue, currentValue, firstChange) {\n this.previousValue = previousValue;\n this.currentValue = currentValue;\n this.firstChange = firstChange;\n }\n /**\n * Check whether the new value is the first value assigned.\n */\n isFirstChange() {\n return this.firstChange;\n }\n}\nfunction applyValueToInputField(instance, inputSignalNode, privateName, value) {\n if (inputSignalNode !== null) {\n inputSignalNode.applyValueToInputSignal(inputSignalNode, value);\n } else {\n instance[privateName] = value;\n }\n}\n\n/**\n * The NgOnChangesFeature decorates a component with support for the ngOnChanges\n * lifecycle hook, so it should be included in any component that implements\n * that hook.\n *\n * If the component or directive uses inheritance, the NgOnChangesFeature MUST\n * be included as a feature AFTER {@link InheritDefinitionFeature}, otherwise\n * inherited properties will not be propagated to the ngOnChanges lifecycle\n * hook.\n *\n * Example usage:\n *\n * ```ts\n * static ɵcmp = defineComponent({\n * ...\n * inputs: {name: 'publicName'},\n * features: [NgOnChangesFeature]\n * });\n * ```\n *\n * @codeGenApi\n */\nconst ɵɵNgOnChangesFeature = /* @__PURE__ */(() => {\n const ɵɵNgOnChangesFeatureImpl = () => NgOnChangesFeatureImpl;\n // This option ensures that the ngOnChanges lifecycle hook will be inherited\n // from superclasses (in InheritDefinitionFeature).\n /** @nocollapse */\n ɵɵNgOnChangesFeatureImpl.ngInherit = true;\n return ɵɵNgOnChangesFeatureImpl;\n})();\nfunction NgOnChangesFeatureImpl(definition) {\n if (definition.type.prototype.ngOnChanges) {\n definition.setInput = ngOnChangesSetInput;\n }\n return rememberChangeHistoryAndInvokeOnChangesHook;\n}\n/**\n * This is a synthetic lifecycle hook which gets inserted into `TView.preOrderHooks` to simulate\n * `ngOnChanges`.\n *\n * The hook reads the `NgSimpleChangesStore` data from the component instance and if changes are\n * found it invokes `ngOnChanges` on the component instance.\n *\n * @param this Component instance. Because this function gets inserted into `TView.preOrderHooks`,\n * it is guaranteed to be called with component instance.\n */\nfunction rememberChangeHistoryAndInvokeOnChangesHook() {\n const simpleChangesStore = getSimpleChangesStore(this);\n const current = simpleChangesStore?.current;\n if (current) {\n const previous = simpleChangesStore.previous;\n if (previous === EMPTY_OBJ) {\n simpleChangesStore.previous = current;\n } else {\n // New changes are copied to the previous store, so that we don't lose history for inputs\n // which were not changed this time\n for (let key in current) {\n previous[key] = current[key];\n }\n }\n simpleChangesStore.current = null;\n this.ngOnChanges(current);\n }\n}\nfunction ngOnChangesSetInput(instance, inputSignalNode, value, publicName, privateName) {\n const declaredName = this.declaredInputs[publicName];\n ngDevMode && assertString(declaredName, 'Name of input in ngOnChanges has to be a string');\n const simpleChangesStore = getSimpleChangesStore(instance) || setSimpleChangesStore(instance, {\n previous: EMPTY_OBJ,\n current: null\n });\n const current = simpleChangesStore.current || (simpleChangesStore.current = {});\n const previous = simpleChangesStore.previous;\n const previousChange = previous[declaredName];\n current[declaredName] = new SimpleChange(previousChange && previousChange.currentValue, value, previous === EMPTY_OBJ);\n applyValueToInputField(instance, inputSignalNode, privateName, value);\n}\nconst SIMPLE_CHANGES_STORE = '__ngSimpleChanges__';\nfunction getSimpleChangesStore(instance) {\n return instance[SIMPLE_CHANGES_STORE] || null;\n}\nfunction setSimpleChangesStore(instance, store) {\n return instance[SIMPLE_CHANGES_STORE] = store;\n}\nconst profilerCallbacks = [];\nconst NOOP_PROFILER_REMOVAL = () => {};\nfunction removeProfiler(profiler) {\n const profilerIdx = profilerCallbacks.indexOf(profiler);\n if (profilerIdx !== -1) {\n profilerCallbacks.splice(profilerIdx, 1);\n }\n}\n/**\n * Adds a callback function which will be invoked before and after performing certain actions at\n * runtime (for example, before and after running change detection). Multiple profiler callbacks can be set:\n * in this case profiling events are reported to every registered callback.\n *\n * Warning: this function is *INTERNAL* and should not be relied upon in application's code.\n * The contract of the function might be changed in any release and/or the function can be removed\n * completely.\n *\n * @param profiler function provided by the caller or null value to disable all profilers.\n * @returns a cleanup function that, when invoked, removes a given profiler callback.\n */\nfunction setProfiler(profiler) {\n if (profiler !== null) {\n if (!profilerCallbacks.includes(profiler)) {\n profilerCallbacks.push(profiler);\n }\n return () => removeProfiler(profiler);\n } else {\n profilerCallbacks.length = 0;\n return NOOP_PROFILER_REMOVAL;\n }\n}\n/**\n * Profiler function which wraps user code executed by the runtime.\n *\n * @param event ProfilerEvent corresponding to the execution context\n * @param instance component instance\n * @param eventFn function associated with event.\n * For example a template function, lifecycle hook, or output listener.\n * The value depends on the execution context\n */\nconst profiler = function (event, instance = null, eventFn) {\n for (let i = 0; i < profilerCallbacks.length; i++) {\n const profilerCallback = profilerCallbacks[i];\n profilerCallback(event, instance, eventFn);\n }\n};\n\n/**\n * Adds all directive lifecycle hooks from the given `DirectiveDef` to the given `TView`.\n *\n * Must be run *only* on the first template pass.\n *\n * Sets up the pre-order hooks on the provided `tView`,\n * see {@link HookData} for details about the data structure.\n *\n * @param directiveIndex The index of the directive in LView\n * @param directiveDef The definition containing the hooks to setup in tView\n * @param tView The current TView\n */\nfunction registerPreOrderHooks(directiveIndex, directiveDef, tView) {\n ngDevMode && assertFirstCreatePass(tView);\n const {\n ngOnChanges,\n ngOnInit,\n ngDoCheck\n } = directiveDef.type.prototype;\n if (ngOnChanges) {\n const wrappedOnChanges = NgOnChangesFeatureImpl(directiveDef);\n (tView.preOrderHooks ??= []).push(directiveIndex, wrappedOnChanges);\n (tView.preOrderCheckHooks ??= []).push(directiveIndex, wrappedOnChanges);\n }\n if (ngOnInit) {\n (tView.preOrderHooks ??= []).push(0 - directiveIndex, ngOnInit);\n }\n if (ngDoCheck) {\n (tView.preOrderHooks ??= []).push(directiveIndex, ngDoCheck);\n (tView.preOrderCheckHooks ??= []).push(directiveIndex, ngDoCheck);\n }\n}\n/**\n *\n * Loops through the directives on the provided `tNode` and queues hooks to be\n * run that are not initialization hooks.\n *\n * Should be executed during `elementEnd()` and similar to\n * preserve hook execution order. Content, view, and destroy hooks for projected\n * components and directives must be called *before* their hosts.\n *\n * Sets up the content, view, and destroy hooks on the provided `tView`,\n * see {@link HookData} for details about the data structure.\n *\n * NOTE: This does not set up `onChanges`, `onInit` or `doCheck`, those are set up\n * separately at `elementStart`.\n *\n * @param tView The current TView\n * @param tNode The TNode whose directives are to be searched for hooks to queue\n */\nfunction registerPostOrderHooks(tView, tNode) {\n ngDevMode && assertFirstCreatePass(tView);\n // It's necessary to loop through the directives at elementEnd() (rather than processing in\n // directiveCreate) so we can preserve the current hook order. Content, view, and destroy\n // hooks for projected components and directives must be called *before* their hosts.\n for (let i = tNode.directiveStart, end = tNode.directiveEnd; i < end; i++) {\n const directiveDef = tView.data[i];\n ngDevMode && assertDefined(directiveDef, 'Expecting DirectiveDef');\n const lifecycleHooks = directiveDef.type.prototype;\n const {\n ngAfterContentInit,\n ngAfterContentChecked,\n ngAfterViewInit,\n ngAfterViewChecked,\n ngOnDestroy\n } = lifecycleHooks;\n if (ngAfterContentInit) {\n (tView.contentHooks ??= []).push(-i, ngAfterContentInit);\n }\n if (ngAfterContentChecked) {\n (tView.contentHooks ??= []).push(i, ngAfterContentChecked);\n (tView.contentCheckHooks ??= []).push(i, ngAfterContentChecked);\n }\n if (ngAfterViewInit) {\n (tView.viewHooks ??= []).push(-i, ngAfterViewInit);\n }\n if (ngAfterViewChecked) {\n (tView.viewHooks ??= []).push(i, ngAfterViewChecked);\n (tView.viewCheckHooks ??= []).push(i, ngAfterViewChecked);\n }\n if (ngOnDestroy != null) {\n (tView.destroyHooks ??= []).push(i, ngOnDestroy);\n }\n }\n}\n/**\n * Executing hooks requires complex logic as we need to deal with 2 constraints.\n *\n * 1. Init hooks (ngOnInit, ngAfterContentInit, ngAfterViewInit) must all be executed once and only\n * once, across many change detection cycles. This must be true even if some hooks throw, or if\n * some recursively trigger a change detection cycle.\n * To solve that, it is required to track the state of the execution of these init hooks.\n * This is done by storing and maintaining flags in the view: the {@link InitPhaseState},\n * and the index within that phase. They can be seen as a cursor in the following structure:\n * [[onInit1, onInit2], [afterContentInit1], [afterViewInit1, afterViewInit2, afterViewInit3]]\n * They are stored as flags in LView[FLAGS].\n *\n * 2. Pre-order hooks can be executed in batches, because of the select instruction.\n * To be able to pause and resume their execution, we also need some state about the hook's array\n * that is being processed:\n * - the index of the next hook to be executed\n * - the number of init hooks already found in the processed part of the array\n * They are stored as flags in LView[PREORDER_HOOK_FLAGS].\n */\n/**\n * Executes pre-order check hooks ( OnChanges, DoChanges) given a view where all the init hooks were\n * executed once. This is a light version of executeInitAndCheckPreOrderHooks where we can skip read\n * / write of the init-hooks related flags.\n * @param lView The LView where hooks are defined\n * @param hooks Hooks to be run\n * @param nodeIndex 3 cases depending on the value:\n * - undefined: all hooks from the array should be executed (post-order case)\n * - null: execute hooks only from the saved index until the end of the array (pre-order case, when\n * flushing the remaining hooks)\n * - number: execute hooks only from the saved index until that node index exclusive (pre-order\n * case, when executing select(number))\n */\nfunction executeCheckHooks(lView, hooks, nodeIndex) {\n callHooks(lView, hooks, 3 /* InitPhaseState.InitPhaseCompleted */, nodeIndex);\n}\n/**\n * Executes post-order init and check hooks (one of AfterContentInit, AfterContentChecked,\n * AfterViewInit, AfterViewChecked) given a view where there are pending init hooks to be executed.\n * @param lView The LView where hooks are defined\n * @param hooks Hooks to be run\n * @param initPhase A phase for which hooks should be run\n * @param nodeIndex 3 cases depending on the value:\n * - undefined: all hooks from the array should be executed (post-order case)\n * - null: execute hooks only from the saved index until the end of the array (pre-order case, when\n * flushing the remaining hooks)\n * - number: execute hooks only from the saved index until that node index exclusive (pre-order\n * case, when executing select(number))\n */\nfunction executeInitAndCheckHooks(lView, hooks, initPhase, nodeIndex) {\n ngDevMode && assertNotEqual(initPhase, 3 /* InitPhaseState.InitPhaseCompleted */, 'Init pre-order hooks should not be called more than once');\n if ((lView[FLAGS] & 3 /* LViewFlags.InitPhaseStateMask */) === initPhase) {\n callHooks(lView, hooks, initPhase, nodeIndex);\n }\n}\nfunction incrementInitPhaseFlags(lView, initPhase) {\n ngDevMode && assertNotEqual(initPhase, 3 /* InitPhaseState.InitPhaseCompleted */, 'Init hooks phase should not be incremented after all init hooks have been run.');\n let flags = lView[FLAGS];\n if ((flags & 3 /* LViewFlags.InitPhaseStateMask */) === initPhase) {\n flags &= 16383 /* LViewFlags.IndexWithinInitPhaseReset */;\n flags += 1 /* LViewFlags.InitPhaseStateIncrementer */;\n lView[FLAGS] = flags;\n }\n}\n/**\n * Calls lifecycle hooks with their contexts, skipping init hooks if it's not\n * the first LView pass\n *\n * @param currentView The current view\n * @param arr The array in which the hooks are found\n * @param initPhaseState the current state of the init phase\n * @param currentNodeIndex 3 cases depending on the value:\n * - undefined: all hooks from the array should be executed (post-order case)\n * - null: execute hooks only from the saved index until the end of the array (pre-order case, when\n * flushing the remaining hooks)\n * - number: execute hooks only from the saved index until that node index exclusive (pre-order\n * case, when executing select(number))\n */\nfunction callHooks(currentView, arr, initPhase, currentNodeIndex) {\n ngDevMode && assertEqual(isInCheckNoChangesMode(), false, 'Hooks should never be run when in check no changes mode.');\n const startIndex = currentNodeIndex !== undefined ? currentView[PREORDER_HOOK_FLAGS] & 65535 /* PreOrderHookFlags.IndexOfTheNextPreOrderHookMaskMask */ : 0;\n const nodeIndexLimit = currentNodeIndex != null ? currentNodeIndex : -1;\n const max = arr.length - 1; // Stop the loop at length - 1, because we look for the hook at i + 1\n let lastNodeIndexFound = 0;\n for (let i = startIndex; i < max; i++) {\n const hook = arr[i + 1];\n if (typeof hook === 'number') {\n lastNodeIndexFound = arr[i];\n if (currentNodeIndex != null && lastNodeIndexFound >= currentNodeIndex) {\n break;\n }\n } else {\n const isInitHook = arr[i] < 0;\n if (isInitHook) {\n currentView[PREORDER_HOOK_FLAGS] += 65536 /* PreOrderHookFlags.NumberOfInitHooksCalledIncrementer */;\n }\n if (lastNodeIndexFound < nodeIndexLimit || nodeIndexLimit == -1) {\n callHook(currentView, initPhase, arr, i);\n currentView[PREORDER_HOOK_FLAGS] = (currentView[PREORDER_HOOK_FLAGS] & 4294901760 /* PreOrderHookFlags.NumberOfInitHooksCalledMask */) + i + 2;\n }\n i++;\n }\n }\n}\n/**\n * Executes a single lifecycle hook, making sure that:\n * - it is called in the non-reactive context;\n * - profiling data are registered.\n */\nfunction callHookInternal(directive, hook) {\n profiler(4 /* ProfilerEvent.LifecycleHookStart */, directive, hook);\n const prevConsumer = setActiveConsumer(null);\n try {\n hook.call(directive);\n } finally {\n setActiveConsumer(prevConsumer);\n profiler(5 /* ProfilerEvent.LifecycleHookEnd */, directive, hook);\n }\n}\n/**\n * Execute one hook against the current `LView`.\n *\n * @param currentView The current view\n * @param initPhaseState the current state of the init phase\n * @param arr The array in which the hooks are found\n * @param i The current index within the hook data array\n */\nfunction callHook(currentView, initPhase, arr, i) {\n const isInitHook = arr[i] < 0;\n const hook = arr[i + 1];\n const directiveIndex = isInitHook ? -arr[i] : arr[i];\n const directive = currentView[directiveIndex];\n if (isInitHook) {\n const indexWithintInitPhase = currentView[FLAGS] >> 14 /* LViewFlags.IndexWithinInitPhaseShift */;\n // The init phase state must be always checked here as it may have been recursively updated.\n if (indexWithintInitPhase < currentView[PREORDER_HOOK_FLAGS] >> 16 /* PreOrderHookFlags.NumberOfInitHooksCalledShift */ && (currentView[FLAGS] & 3 /* LViewFlags.InitPhaseStateMask */) === initPhase) {\n currentView[FLAGS] += 16384 /* LViewFlags.IndexWithinInitPhaseIncrementer */;\n callHookInternal(directive, hook);\n }\n } else {\n callHookInternal(directive, hook);\n }\n}\nconst NO_PARENT_INJECTOR = -1;\n/**\n * Each injector is saved in 9 contiguous slots in `LView` and 9 contiguous slots in\n * `TView.data`. This allows us to store information about the current node's tokens (which\n * can be shared in `TView`) as well as the tokens of its ancestor nodes (which cannot be\n * shared, so they live in `LView`).\n *\n * Each of these slots (aside from the last slot) contains a bloom filter. This bloom filter\n * determines whether a directive is available on the associated node or not. This prevents us\n * from searching the directives array at this level unless it's probable the directive is in it.\n *\n * See: https://en.wikipedia.org/wiki/Bloom_filter for more about bloom filters.\n *\n * Because all injectors have been flattened into `LView` and `TViewData`, they cannot typed\n * using interfaces as they were previously. The start index of each `LInjector` and `TInjector`\n * will differ based on where it is flattened into the main array, so it's not possible to know\n * the indices ahead of time and save their types here. The interfaces are still included here\n * for documentation purposes.\n *\n * export interface LInjector extends Array {\n *\n * // Cumulative bloom for directive IDs 0-31 (IDs are % BLOOM_SIZE)\n * [0]: number;\n *\n * // Cumulative bloom for directive IDs 32-63\n * [1]: number;\n *\n * // Cumulative bloom for directive IDs 64-95\n * [2]: number;\n *\n * // Cumulative bloom for directive IDs 96-127\n * [3]: number;\n *\n * // Cumulative bloom for directive IDs 128-159\n * [4]: number;\n *\n * // Cumulative bloom for directive IDs 160 - 191\n * [5]: number;\n *\n * // Cumulative bloom for directive IDs 192 - 223\n * [6]: number;\n *\n * // Cumulative bloom for directive IDs 224 - 255\n * [7]: number;\n *\n * // We need to store a reference to the injector's parent so DI can keep looking up\n * // the injector tree until it finds the dependency it's looking for.\n * [PARENT_INJECTOR]: number;\n * }\n *\n * export interface TInjector extends Array {\n *\n * // Shared node bloom for directive IDs 0-31 (IDs are % BLOOM_SIZE)\n * [0]: number;\n *\n * // Shared node bloom for directive IDs 32-63\n * [1]: number;\n *\n * // Shared node bloom for directive IDs 64-95\n * [2]: number;\n *\n * // Shared node bloom for directive IDs 96-127\n * [3]: number;\n *\n * // Shared node bloom for directive IDs 128-159\n * [4]: number;\n *\n * // Shared node bloom for directive IDs 160 - 191\n * [5]: number;\n *\n * // Shared node bloom for directive IDs 192 - 223\n * [6]: number;\n *\n * // Shared node bloom for directive IDs 224 - 255\n * [7]: number;\n *\n * // Necessary to find directive indices for a particular node.\n * [TNODE]: TElementNode|TElementContainerNode|TContainerNode;\n * }\n */\n/**\n * Factory for creating instances of injectors in the NodeInjector.\n *\n * This factory is complicated by the fact that it can resolve `multi` factories as well.\n *\n * NOTE: Some of the fields are optional which means that this class has two hidden classes.\n * - One without `multi` support (most common)\n * - One with `multi` values, (rare).\n *\n * Since VMs can cache up to 4 inline hidden classes this is OK.\n *\n * - Single factory: Only `resolving` and `factory` is defined.\n * - `providers` factory: `componentProviders` is a number and `index = -1`.\n * - `viewProviders` factory: `componentProviders` is a number and `index` points to `providers`.\n */\nclass NodeInjectorFactory {\n factory;\n name;\n /**\n * The inject implementation to be activated when using the factory.\n */\n injectImpl;\n /**\n * Marker set to true during factory invocation to see if we get into recursive loop.\n * Recursive loop causes an error to be displayed.\n */\n resolving = false;\n /**\n * Marks that the token can see other Tokens declared in `viewProviders` on the same node.\n */\n canSeeViewProviders;\n /**\n * An array of factories to use in case of `multi` provider.\n */\n multi;\n /**\n * Number of `multi`-providers which belong to the component.\n *\n * This is needed because when multiple components and directives declare the `multi` provider\n * they have to be concatenated in the correct order.\n *\n * Example:\n *\n * If we have a component and directive active an a single element as declared here\n * ```ts\n * component:\n * providers: [ {provide: String, useValue: 'component', multi: true} ],\n * viewProviders: [ {provide: String, useValue: 'componentView', multi: true} ],\n *\n * directive:\n * providers: [ {provide: String, useValue: 'directive', multi: true} ],\n * ```\n *\n * Then the expected results are:\n *\n * ```ts\n * providers: ['component', 'directive']\n * viewProviders: ['component', 'componentView', 'directive']\n * ```\n *\n * The way to think about it is that the `viewProviders` have been inserted after the component\n * but before the directives, which is why we need to know how many `multi`s have been declared by\n * the component.\n */\n componentProviders;\n /**\n * Current index of the Factory in the `data`. Needed for `viewProviders` and `providers` merging.\n * See `providerFactory`.\n */\n index;\n /**\n * Because the same `multi` provider can be declared in `providers` and `viewProviders` it is\n * possible for `viewProviders` to shadow the `providers`. For this reason we store the\n * `provideFactory` of the `providers` so that `providers` can be extended with `viewProviders`.\n *\n * Example:\n *\n * Given:\n * ```ts\n * providers: [ {provide: String, useValue: 'all', multi: true} ],\n * viewProviders: [ {provide: String, useValue: 'viewOnly', multi: true} ],\n * ```\n *\n * We have to return `['all']` in case of content injection, but `['all', 'viewOnly']` in case\n * of view injection. We further have to make sure that the shared instances (in our case\n * `all`) are the exact same instance in both the content as well as the view injection. (We\n * have to make sure that we don't double instantiate.) For this reason the `viewProviders`\n * `Factory` has a pointer to the shadowed `providers` factory so that it can instantiate the\n * `providers` (`['all']`) and then extend it with `viewProviders` (`['all'] + ['viewOnly'] =\n * ['all', 'viewOnly']`).\n */\n providerFactory;\n constructor(\n /**\n * Factory to invoke in order to create a new instance.\n */\n factory,\n /**\n * Set to `true` if the token is declared in `viewProviders` (or if it is component).\n */\n isViewProvider, injectImplementation,\n // Expect `null` in devmode\n name) {\n this.factory = factory;\n this.name = name;\n ngDevMode && assertDefined(factory, 'Factory not specified');\n ngDevMode && assertEqual(typeof factory, 'function', 'Expected factory function.');\n this.canSeeViewProviders = isViewProvider;\n this.injectImpl = injectImplementation;\n }\n}\n\n/**\n * Converts `TNodeType` into human readable text.\n * Make sure this matches with `TNodeType`\n */\nfunction toTNodeTypeAsString(tNodeType) {\n let text = '';\n tNodeType & 1 /* TNodeType.Text */ && (text += '|Text');\n tNodeType & 2 /* TNodeType.Element */ && (text += '|Element');\n tNodeType & 4 /* TNodeType.Container */ && (text += '|Container');\n tNodeType & 8 /* TNodeType.ElementContainer */ && (text += '|ElementContainer');\n tNodeType & 16 /* TNodeType.Projection */ && (text += '|Projection');\n tNodeType & 32 /* TNodeType.Icu */ && (text += '|IcuContainer');\n tNodeType & 64 /* TNodeType.Placeholder */ && (text += '|Placeholder');\n tNodeType & 128 /* TNodeType.LetDeclaration */ && (text += '|LetDeclaration');\n return text.length > 0 ? text.substring(1) : text;\n}\n/**\n * Helper function to detect if a given value matches a `TNode` shape.\n *\n * The logic uses the `insertBeforeIndex` and its possible values as\n * a way to differentiate a TNode shape from other types of objects\n * within the `TView.data`. This is not a perfect check, but it can\n * be a reasonable differentiator, since we control the shapes of objects\n * within `TView.data`.\n */\nfunction isTNodeShape(value) {\n return value != null && typeof value === 'object' && (value.insertBeforeIndex === null || typeof value.insertBeforeIndex === 'number' || Array.isArray(value.insertBeforeIndex));\n}\nfunction isLetDeclaration(tNode) {\n return !!(tNode.type & 128 /* TNodeType.LetDeclaration */);\n}\n/**\n * Returns `true` if the `TNode` has a directive which has `@Input()` for `class` binding.\n *\n * ```html\n *
\n * ```\n * and\n * ```ts\n * @Directive({\n * })\n * class MyDirective {\n * @Input()\n * class: string;\n * }\n * ```\n *\n * In the above case it is necessary to write the reconciled styling information into the\n * directive's input.\n *\n * @param tNode\n */\nfunction hasClassInput(tNode) {\n return (tNode.flags & 8 /* TNodeFlags.hasClassInput */) !== 0;\n}\n/**\n * Returns `true` if the `TNode` has a directive which has `@Input()` for `style` binding.\n *\n * ```html\n *
\n * ```\n * and\n * ```ts\n * @Directive({\n * })\n * class MyDirective {\n * @Input()\n * class: string;\n * }\n * ```\n *\n * In the above case it is necessary to write the reconciled styling information into the\n * directive's input.\n *\n * @param tNode\n */\nfunction hasStyleInput(tNode) {\n return (tNode.flags & 16 /* TNodeFlags.hasStyleInput */) !== 0;\n}\nfunction assertTNodeType(tNode, expectedTypes, message) {\n assertDefined(tNode, 'should be called with a TNode');\n if ((tNode.type & expectedTypes) === 0) {\n throwError(message || `Expected [${toTNodeTypeAsString(expectedTypes)}] but got ${toTNodeTypeAsString(tNode.type)}.`);\n }\n}\nfunction assertPureTNodeType(type) {\n if (!(type === 2 /* TNodeType.Element */ || type === 1 /* TNodeType.Text */ || type === 4 /* TNodeType.Container */ || type === 8 /* TNodeType.ElementContainer */ || type === 32 /* TNodeType.Icu */ || type === 16 /* TNodeType.Projection */ || type === 64 /* TNodeType.Placeholder */ || type === 128 /* TNodeType.LetDeclaration */)) {\n throwError(`Expected TNodeType to have only a single type selected, but got ${toTNodeTypeAsString(type)}.`);\n }\n}\n\n/**\n * Assigns all attribute values to the provided element via the inferred renderer.\n *\n * This function accepts two forms of attribute entries:\n *\n * default: (key, value):\n * attrs = [key1, value1, key2, value2]\n *\n * namespaced: (NAMESPACE_MARKER, uri, name, value)\n * attrs = [NAMESPACE_MARKER, uri, name, value, NAMESPACE_MARKER, uri, name, value]\n *\n * The `attrs` array can contain a mix of both the default and namespaced entries.\n * The \"default\" values are set without a marker, but if the function comes across\n * a marker value then it will attempt to set a namespaced value. If the marker is\n * not of a namespaced value then the function will quit and return the index value\n * where it stopped during the iteration of the attrs array.\n *\n * See [AttributeMarker] to understand what the namespace marker value is.\n *\n * Note that this instruction does not support assigning style and class values to\n * an element. See `elementStart` and `elementHostAttrs` to learn how styling values\n * are applied to an element.\n * @param renderer The renderer to be used\n * @param native The element that the attributes will be assigned to\n * @param attrs The attribute array of values that will be assigned to the element\n * @returns the index value that was last accessed in the attributes array\n */\nfunction setUpAttributes(renderer, native, attrs) {\n let i = 0;\n while (i < attrs.length) {\n const value = attrs[i];\n if (typeof value === 'number') {\n // only namespaces are supported. Other value types (such as style/class\n // entries) are not supported in this function.\n if (value !== 0 /* AttributeMarker.NamespaceURI */) {\n break;\n }\n // we just landed on the marker value ... therefore\n // we should skip to the next entry\n i++;\n const namespaceURI = attrs[i++];\n const attrName = attrs[i++];\n const attrVal = attrs[i++];\n renderer.setAttribute(native, attrName, attrVal, namespaceURI);\n } else {\n // attrName is string;\n const attrName = value;\n const attrVal = attrs[++i];\n // Standard attributes\n if (isAnimationProp(attrName)) {\n renderer.setProperty(native, attrName, attrVal);\n } else {\n renderer.setAttribute(native, attrName, attrVal);\n }\n i++;\n }\n }\n // another piece of code may iterate over the same attributes array. Therefore\n // it may be helpful to return the exact spot where the attributes array exited\n // whether by running into an unsupported marker or if all the static values were\n // iterated over.\n return i;\n}\n/**\n * Test whether the given value is a marker that indicates that the following\n * attribute values in a `TAttributes` array are only the names of attributes,\n * and not name-value pairs.\n * @param marker The attribute marker to test.\n * @returns true if the marker is a \"name-only\" marker (e.g. `Bindings`, `Template` or `I18n`).\n */\nfunction isNameOnlyAttributeMarker(marker) {\n return marker === 3 /* AttributeMarker.Bindings */ || marker === 4 /* AttributeMarker.Template */ || marker === 6 /* AttributeMarker.I18n */;\n}\nfunction isAnimationProp(name) {\n // Perf note: accessing charCodeAt to check for the first character of a string is faster as\n // compared to accessing a character at index 0 (ex. name[0]). The main reason for this is that\n // charCodeAt doesn't allocate memory to return a substring.\n return name.charCodeAt(0) === 64 /* CharCode.AT_SIGN */;\n}\n/**\n * Merges `src` `TAttributes` into `dst` `TAttributes` removing any duplicates in the process.\n *\n * This merge function keeps the order of attrs same.\n *\n * @param dst Location of where the merged `TAttributes` should end up.\n * @param src `TAttributes` which should be appended to `dst`\n */\nfunction mergeHostAttrs(dst, src) {\n if (src === null || src.length === 0) ;else if (dst === null || dst.length === 0) {\n // We have source, but dst is empty, just make a copy.\n dst = src.slice();\n } else {\n let srcMarker = -1 /* AttributeMarker.ImplicitAttributes */;\n for (let i = 0; i < src.length; i++) {\n const item = src[i];\n if (typeof item === 'number') {\n srcMarker = item;\n } else {\n if (srcMarker === 0 /* AttributeMarker.NamespaceURI */) ;else if (srcMarker === -1 /* AttributeMarker.ImplicitAttributes */ || srcMarker === 2 /* AttributeMarker.Styles */) {\n // Case where we have to consume `key1` and `value` only.\n mergeHostAttribute(dst, srcMarker, item, null, src[++i]);\n } else {\n // Case where we have to consume `key1` only.\n mergeHostAttribute(dst, srcMarker, item, null, null);\n }\n }\n }\n }\n return dst;\n}\n/**\n * Append `key`/`value` to existing `TAttributes` taking region marker and duplicates into account.\n *\n * @param dst `TAttributes` to append to.\n * @param marker Region where the `key`/`value` should be added.\n * @param key1 Key to add to `TAttributes`\n * @param key2 Key to add to `TAttributes` (in case of `AttributeMarker.NamespaceURI`)\n * @param value Value to add or to overwrite to `TAttributes` Only used if `marker` is not Class.\n */\nfunction mergeHostAttribute(dst, marker, key1, key2, value) {\n let i = 0;\n // Assume that new markers will be inserted at the end.\n let markerInsertPosition = dst.length;\n // scan until correct type.\n if (marker === -1 /* AttributeMarker.ImplicitAttributes */) {\n markerInsertPosition = -1;\n } else {\n while (i < dst.length) {\n const dstValue = dst[i++];\n if (typeof dstValue === 'number') {\n if (dstValue === marker) {\n markerInsertPosition = -1;\n break;\n } else if (dstValue > marker) {\n // We need to save this as we want the markers to be inserted in specific order.\n markerInsertPosition = i - 1;\n break;\n }\n }\n }\n }\n // search until you find place of insertion\n while (i < dst.length) {\n const item = dst[i];\n if (typeof item === 'number') {\n // since `i` started as the index after the marker, we did not find it if we are at the next\n // marker\n break;\n } else if (item === key1) {\n // We already have same token\n {\n if (value !== null) {\n dst[i + 1] = value;\n }\n return;\n }\n }\n // Increment counter.\n i++;\n if (value !== null) i++;\n }\n // insert at location.\n if (markerInsertPosition !== -1) {\n dst.splice(markerInsertPosition, 0, marker);\n i = markerInsertPosition + 1;\n }\n dst.splice(i++, 0, key1);\n if (value !== null) {\n dst.splice(i++, 0, value);\n }\n}\n\n/// Parent Injector Utils ///////////////////////////////////////////////////////////////\nfunction hasParentInjector(parentLocation) {\n return parentLocation !== NO_PARENT_INJECTOR;\n}\nfunction getParentInjectorIndex(parentLocation) {\n if (ngDevMode) {\n assertNumber(parentLocation, 'Number expected');\n assertNotEqual(parentLocation, -1, 'Not a valid state.');\n const parentInjectorIndex = parentLocation & 32767 /* RelativeInjectorLocationFlags.InjectorIndexMask */;\n assertGreaterThan(parentInjectorIndex, HEADER_OFFSET, 'Parent injector must be pointing past HEADER_OFFSET.');\n }\n return parentLocation & 32767 /* RelativeInjectorLocationFlags.InjectorIndexMask */;\n}\nfunction getParentInjectorViewOffset(parentLocation) {\n return parentLocation >> 16 /* RelativeInjectorLocationFlags.ViewOffsetShift */;\n}\n/**\n * Unwraps a parent injector location number to find the view offset from the current injector,\n * then walks up the declaration view tree until the view is found that contains the parent\n * injector.\n *\n * @param location The location of the parent injector, which contains the view offset\n * @param startView The LView instance from which to start walking up the view tree\n * @returns The LView instance that contains the parent injector\n */\nfunction getParentInjectorView(location, startView) {\n let viewOffset = getParentInjectorViewOffset(location);\n let parentView = startView;\n // For most cases, the parent injector can be found on the host node (e.g. for component\n // or container), but we must keep the loop here to support the rarer case of deeply nested\n // tags or inline views, where the parent injector might live many views\n // above the child injector.\n while (viewOffset > 0) {\n parentView = parentView[DECLARATION_VIEW];\n viewOffset--;\n }\n return parentView;\n}\n\n/**\n * Defines if the call to `inject` should include `viewProviders` in its resolution.\n *\n * This is set to true when we try to instantiate a component. This value is reset in\n * `getNodeInjectable` to a value which matches the declaration location of the token about to be\n * instantiated. This is done so that if we are injecting a token which was declared outside of\n * `viewProviders` we don't accidentally pull `viewProviders` in.\n *\n * Example:\n *\n * ```ts\n * @Injectable()\n * class MyService {\n * constructor(public value: String) {}\n * }\n *\n * @Component({\n * providers: [\n * MyService,\n * {provide: String, value: 'providers' }\n * ]\n * viewProviders: [\n * {provide: String, value: 'viewProviders'}\n * ]\n * })\n * class MyComponent {\n * constructor(myService: MyService, value: String) {\n * // We expect that Component can see into `viewProviders`.\n * expect(value).toEqual('viewProviders');\n * // `MyService` was not declared in `viewProviders` hence it can't see it.\n * expect(myService.value).toEqual('providers');\n * }\n * }\n *\n * ```\n */\nlet includeViewProviders = true;\nfunction setIncludeViewProviders(v) {\n const oldValue = includeViewProviders;\n includeViewProviders = v;\n return oldValue;\n}\n/**\n * The number of slots in each bloom filter (used by DI). The larger this number, the fewer\n * directives that will share slots, and thus, the fewer false positives when checking for\n * the existence of a directive.\n */\nconst BLOOM_SIZE = 256;\nconst BLOOM_MASK = BLOOM_SIZE - 1;\n/**\n * The number of bits that is represented by a single bloom bucket. JS bit operations are 32 bits,\n * so each bucket represents 32 distinct tokens which accounts for log2(32) = 5 bits of a bloom hash\n * number.\n */\nconst BLOOM_BUCKET_BITS = 5;\n/** Counter used to generate unique IDs for directives. */\nlet nextNgElementId = 0;\n/** Value used when something wasn't found by an injector. */\nconst NOT_FOUND = {};\n/**\n * Registers this directive as present in its node's injector by flipping the directive's\n * corresponding bit in the injector's bloom filter.\n *\n * @param injectorIndex The index of the node injector where this token should be registered\n * @param tView The TView for the injector's bloom filters\n * @param type The directive token to register\n */\nfunction bloomAdd(injectorIndex, tView, type) {\n ngDevMode && assertEqual(tView.firstCreatePass, true, 'expected firstCreatePass to be true');\n let id;\n if (typeof type === 'string') {\n id = type.charCodeAt(0) || 0;\n } else if (type.hasOwnProperty(NG_ELEMENT_ID)) {\n id = type[NG_ELEMENT_ID];\n }\n // Set a unique ID on the directive type, so if something tries to inject the directive,\n // we can easily retrieve the ID and hash it into the bloom bit that should be checked.\n if (id == null) {\n id = type[NG_ELEMENT_ID] = nextNgElementId++;\n }\n // We only have BLOOM_SIZE (256) slots in our bloom filter (8 buckets * 32 bits each),\n // so all unique IDs must be modulo-ed into a number from 0 - 255 to fit into the filter.\n const bloomHash = id & BLOOM_MASK;\n // Create a mask that targets the specific bit associated with the directive.\n // JS bit operations are 32 bits, so this will be a number between 2^0 and 2^31, corresponding\n // to bit positions 0 - 31 in a 32 bit integer.\n const mask = 1 << bloomHash;\n // Each bloom bucket in `tData` represents `BLOOM_BUCKET_BITS` number of bits of `bloomHash`.\n // Any bits in `bloomHash` beyond `BLOOM_BUCKET_BITS` indicate the bucket offset that the mask\n // should be written to.\n tView.data[injectorIndex + (bloomHash >> BLOOM_BUCKET_BITS)] |= mask;\n}\n/**\n * Creates (or gets an existing) injector for a given element or container.\n *\n * @param tNode for which an injector should be retrieved / created.\n * @param lView View where the node is stored\n * @returns Node injector\n */\nfunction getOrCreateNodeInjectorForNode(tNode, lView) {\n const existingInjectorIndex = getInjectorIndex(tNode, lView);\n if (existingInjectorIndex !== -1) {\n return existingInjectorIndex;\n }\n const tView = lView[TVIEW];\n if (tView.firstCreatePass) {\n tNode.injectorIndex = lView.length;\n insertBloom(tView.data, tNode); // foundation for node bloom\n insertBloom(lView, null); // foundation for cumulative bloom\n insertBloom(tView.blueprint, null);\n }\n const parentLoc = getParentInjectorLocation(tNode, lView);\n const injectorIndex = tNode.injectorIndex;\n // If a parent injector can't be found, its location is set to -1.\n // In that case, we don't need to set up a cumulative bloom\n if (hasParentInjector(parentLoc)) {\n const parentIndex = getParentInjectorIndex(parentLoc);\n const parentLView = getParentInjectorView(parentLoc, lView);\n const parentData = parentLView[TVIEW].data;\n // Creates a cumulative bloom filter that merges the parent's bloom filter\n // and its own cumulative bloom (which contains tokens for all ancestors)\n for (let i = 0; i < 8 /* NodeInjectorOffset.BLOOM_SIZE */; i++) {\n lView[injectorIndex + i] = parentLView[parentIndex + i] | parentData[parentIndex + i];\n }\n }\n lView[injectorIndex + 8 /* NodeInjectorOffset.PARENT */] = parentLoc;\n return injectorIndex;\n}\nfunction insertBloom(arr, footer) {\n arr.push(0, 0, 0, 0, 0, 0, 0, 0, footer);\n}\nfunction getInjectorIndex(tNode, lView) {\n if (tNode.injectorIndex === -1 ||\n // If the injector index is the same as its parent's injector index, then the index has been\n // copied down from the parent node. No injector has been created yet on this node.\n tNode.parent && tNode.parent.injectorIndex === tNode.injectorIndex ||\n // After the first template pass, the injector index might exist but the parent values\n // might not have been calculated yet for this instance\n lView[tNode.injectorIndex + 8 /* NodeInjectorOffset.PARENT */] === null) {\n return -1;\n } else {\n ngDevMode && assertIndexInRange(lView, tNode.injectorIndex);\n return tNode.injectorIndex;\n }\n}\n/**\n * Finds the index of the parent injector, with a view offset if applicable. Used to set the\n * parent injector initially.\n *\n * @returns Returns a number that is the combination of the number of LViews that we have to go up\n * to find the LView containing the parent inject AND the index of the injector within that LView.\n */\nfunction getParentInjectorLocation(tNode, lView) {\n if (tNode.parent && tNode.parent.injectorIndex !== -1) {\n // If we have a parent `TNode` and there is an injector associated with it we are done, because\n // the parent injector is within the current `LView`.\n return tNode.parent.injectorIndex; // ViewOffset is 0\n }\n // When parent injector location is computed it may be outside of the current view. (ie it could\n // be pointing to a declared parent location). This variable stores number of declaration parents\n // we need to walk up in order to find the parent injector location.\n let declarationViewOffset = 0;\n let parentTNode = null;\n let lViewCursor = lView;\n // The parent injector is not in the current `LView`. We will have to walk the declared parent\n // `LView` hierarchy and look for it. If we walk of the top, that means that there is no parent\n // `NodeInjector`.\n while (lViewCursor !== null) {\n parentTNode = getTNodeFromLView(lViewCursor);\n if (parentTNode === null) {\n // If we have no parent, than we are done.\n return NO_PARENT_INJECTOR;\n }\n ngDevMode && parentTNode && assertTNodeForLView(parentTNode, lViewCursor[DECLARATION_VIEW]);\n // Every iteration of the loop requires that we go to the declared parent.\n declarationViewOffset++;\n lViewCursor = lViewCursor[DECLARATION_VIEW];\n if (parentTNode.injectorIndex !== -1) {\n // We found a NodeInjector which points to something.\n return parentTNode.injectorIndex | declarationViewOffset << 16 /* RelativeInjectorLocationFlags.ViewOffsetShift */;\n }\n }\n return NO_PARENT_INJECTOR;\n}\n/**\n * Makes a type or an injection token public to the DI system by adding it to an\n * injector's bloom filter.\n *\n * @param di The node injector in which a directive will be added\n * @param token The type or the injection token to be made public\n */\nfunction diPublicInInjector(injectorIndex, tView, token) {\n bloomAdd(injectorIndex, tView, token);\n}\n/**\n * Inject static attribute value into directive constructor.\n *\n * This method is used with `factory` functions which are generated as part of\n * `defineDirective` or `defineComponent`. The method retrieves the static value\n * of an attribute. (Dynamic attributes are not supported since they are not resolved\n * at the time of injection and can change over time.)\n *\n * # Example\n * Given:\n * ```ts\n * @Component(...)\n * class MyComponent {\n * constructor(@Attribute('title') title: string) { ... }\n * }\n * ```\n * When instantiated with\n * ```html\n * \n * ```\n *\n * Then factory method generated is:\n * ```ts\n * MyComponent.ɵcmp = defineComponent({\n * factory: () => new MyComponent(injectAttribute('title'))\n * ...\n * })\n * ```\n *\n * @publicApi\n */\nfunction injectAttributeImpl(tNode, attrNameToInject) {\n ngDevMode && assertTNodeType(tNode, 12 /* TNodeType.AnyContainer */ | 3 /* TNodeType.AnyRNode */);\n ngDevMode && assertDefined(tNode, 'expecting tNode');\n if (attrNameToInject === 'class') {\n return tNode.classes;\n }\n if (attrNameToInject === 'style') {\n return tNode.styles;\n }\n const attrs = tNode.attrs;\n if (attrs) {\n const attrsLength = attrs.length;\n let i = 0;\n while (i < attrsLength) {\n const value = attrs[i];\n // If we hit a `Bindings` or `Template` marker then we are done.\n if (isNameOnlyAttributeMarker(value)) break;\n // Skip namespaced attributes\n if (value === 0 /* AttributeMarker.NamespaceURI */) {\n // we skip the next two values\n // as namespaced attributes looks like\n // [..., AttributeMarker.NamespaceURI, 'http://someuri.com/test', 'test:exist',\n // 'existValue', ...]\n i = i + 2;\n } else if (typeof value === 'number') {\n // Skip to the first value of the marked attribute.\n i++;\n while (i < attrsLength && typeof attrs[i] === 'string') {\n i++;\n }\n } else if (value === attrNameToInject) {\n return attrs[i + 1];\n } else {\n i = i + 2;\n }\n }\n }\n return null;\n}\nfunction notFoundValueOrThrow(notFoundValue, token, flags) {\n if (flags & 8 /* InternalInjectFlags.Optional */ || notFoundValue !== undefined) {\n return notFoundValue;\n } else {\n throwProviderNotFoundError(token, 'NodeInjector');\n }\n}\n/**\n * Returns the value associated to the given token from the ModuleInjector or throws exception\n *\n * @param lView The `LView` that contains the `tNode`\n * @param token The token to look for\n * @param flags Injection flags\n * @param notFoundValue The value to return when the injection flags is `InternalInjectFlags.Optional`\n * @returns the value from the injector or throws an exception\n */\nfunction lookupTokenUsingModuleInjector(lView, token, flags, notFoundValue) {\n if (flags & 8 /* InternalInjectFlags.Optional */ && notFoundValue === undefined) {\n // This must be set or the NullInjector will throw for optional deps\n notFoundValue = null;\n }\n if ((flags & (2 /* InternalInjectFlags.Self */ | 1 /* InternalInjectFlags.Host */)) === 0) {\n const moduleInjector = lView[INJECTOR];\n // switch to `injectInjectorOnly` implementation for module injector, since module injector\n // should not have access to Component/Directive DI scope (that may happen through\n // `directiveInject` implementation)\n const previousInjectImplementation = setInjectImplementation(undefined);\n try {\n if (moduleInjector) {\n return moduleInjector.get(token, notFoundValue, flags & 8 /* InternalInjectFlags.Optional */);\n } else {\n return injectRootLimpMode(token, notFoundValue, flags & 8 /* InternalInjectFlags.Optional */);\n }\n } finally {\n setInjectImplementation(previousInjectImplementation);\n }\n }\n return notFoundValueOrThrow(notFoundValue, token, flags);\n}\n/**\n * Returns the value associated to the given token from the NodeInjectors => ModuleInjector.\n *\n * Look for the injector providing the token by walking up the node injector tree and then\n * the module injector tree.\n *\n * This function patches `token` with `__NG_ELEMENT_ID__` which contains the id for the bloom\n * filter. `-1` is reserved for injecting `Injector` (implemented by `NodeInjector`)\n *\n * @param tNode The Node where the search for the injector should start\n * @param lView The `LView` that contains the `tNode`\n * @param token The token to look for\n * @param flags Injection flags\n * @param notFoundValue The value to return when the injection flags is `InternalInjectFlags.Optional`\n * @returns the value from the injector, `null` when not found, or `notFoundValue` if provided\n */\nfunction getOrCreateInjectable(tNode, lView, token, flags = 0 /* InternalInjectFlags.Default */, notFoundValue) {\n if (tNode !== null) {\n // If the view or any of its ancestors have an embedded\n // view injector, we have to look it up there first.\n if (lView[FLAGS] & 2048 /* LViewFlags.HasEmbeddedViewInjector */ &&\n // The token must be present on the current node injector when the `Self`\n // flag is set, so the lookup on embedded view injector(s) can be skipped.\n !(flags & 2 /* InternalInjectFlags.Self */)) {\n const embeddedInjectorValue = lookupTokenUsingEmbeddedInjector(tNode, lView, token, flags, NOT_FOUND);\n if (embeddedInjectorValue !== NOT_FOUND) {\n return embeddedInjectorValue;\n }\n }\n // Otherwise try the node injector.\n const value = lookupTokenUsingNodeInjector(tNode, lView, token, flags, NOT_FOUND);\n if (value !== NOT_FOUND) {\n return value;\n }\n }\n // Finally, fall back to the module injector.\n return lookupTokenUsingModuleInjector(lView, token, flags, notFoundValue);\n}\n/**\n * Returns the value associated to the given token from the node injector.\n *\n * @param tNode The Node where the search for the injector should start\n * @param lView The `LView` that contains the `tNode`\n * @param token The token to look for\n * @param flags Injection flags\n * @param notFoundValue The value to return when the injection flags is `InternalInjectFlags.Optional`\n * @returns the value from the injector, `null` when not found, or `notFoundValue` if provided\n */\nfunction lookupTokenUsingNodeInjector(tNode, lView, token, flags, notFoundValue) {\n const bloomHash = bloomHashBitOrFactory(token);\n // If the ID stored here is a function, this is a special object like ElementRef or TemplateRef\n // so just call the factory function to create it.\n if (typeof bloomHash === 'function') {\n if (!enterDI(lView, tNode, flags)) {\n // Failed to enter DI, try module injector instead. If a token is injected with the @Host\n // flag, the module injector is not searched for that token in Ivy.\n return flags & 1 /* InternalInjectFlags.Host */ ? notFoundValueOrThrow(notFoundValue, token, flags) : lookupTokenUsingModuleInjector(lView, token, flags, notFoundValue);\n }\n try {\n let value;\n if (ngDevMode) {\n runInInjectorProfilerContext(new NodeInjector(getCurrentTNode(), getLView()), token, () => {\n emitInjectorToCreateInstanceEvent(token);\n value = bloomHash(flags);\n emitInstanceCreatedByInjectorEvent(value);\n });\n } else {\n value = bloomHash(flags);\n }\n if (value == null && !(flags & 8 /* InternalInjectFlags.Optional */)) {\n throwProviderNotFoundError(token);\n } else {\n return value;\n }\n } finally {\n leaveDI();\n }\n } else if (typeof bloomHash === 'number') {\n // A reference to the previous injector TView that was found while climbing the element\n // injector tree. This is used to know if viewProviders can be accessed on the current\n // injector.\n let previousTView = null;\n let injectorIndex = getInjectorIndex(tNode, lView);\n let parentLocation = NO_PARENT_INJECTOR;\n let hostTElementNode = flags & 1 /* InternalInjectFlags.Host */ ? lView[DECLARATION_COMPONENT_VIEW][T_HOST] : null;\n // If we should skip this injector, or if there is no injector on this node, start by\n // searching the parent injector.\n if (injectorIndex === -1 || flags & 4 /* InternalInjectFlags.SkipSelf */) {\n parentLocation = injectorIndex === -1 ? getParentInjectorLocation(tNode, lView) : lView[injectorIndex + 8 /* NodeInjectorOffset.PARENT */];\n if (parentLocation === NO_PARENT_INJECTOR || !shouldSearchParent(flags, false)) {\n injectorIndex = -1;\n } else {\n previousTView = lView[TVIEW];\n injectorIndex = getParentInjectorIndex(parentLocation);\n lView = getParentInjectorView(parentLocation, lView);\n }\n }\n // Traverse up the injector tree until we find a potential match or until we know there\n // *isn't* a match.\n while (injectorIndex !== -1) {\n ngDevMode && assertNodeInjector(lView, injectorIndex);\n // Check the current injector. If it matches, see if it contains token.\n const tView = lView[TVIEW];\n ngDevMode && assertTNodeForLView(tView.data[injectorIndex + 8 /* NodeInjectorOffset.TNODE */], lView);\n if (bloomHasToken(bloomHash, injectorIndex, tView.data)) {\n // At this point, we have an injector which *may* contain the token, so we step through\n // the providers and directives associated with the injector's corresponding node to get\n // the instance.\n const instance = searchTokensOnInjector(injectorIndex, lView, token, previousTView, flags, hostTElementNode);\n if (instance !== NOT_FOUND) {\n return instance;\n }\n }\n parentLocation = lView[injectorIndex + 8 /* NodeInjectorOffset.PARENT */];\n if (parentLocation !== NO_PARENT_INJECTOR && shouldSearchParent(flags, lView[TVIEW].data[injectorIndex + 8 /* NodeInjectorOffset.TNODE */] === hostTElementNode) && bloomHasToken(bloomHash, injectorIndex, lView)) {\n // The def wasn't found anywhere on this node, so it was a false positive.\n // Traverse up the tree and continue searching.\n previousTView = tView;\n injectorIndex = getParentInjectorIndex(parentLocation);\n lView = getParentInjectorView(parentLocation, lView);\n } else {\n // If we should not search parent OR If the ancestor bloom filter value does not have the\n // bit corresponding to the directive we can give up on traversing up to find the specific\n // injector.\n injectorIndex = -1;\n }\n }\n }\n return notFoundValue;\n}\nfunction searchTokensOnInjector(injectorIndex, lView, token, previousTView, flags, hostTElementNode) {\n const currentTView = lView[TVIEW];\n const tNode = currentTView.data[injectorIndex + 8 /* NodeInjectorOffset.TNODE */];\n // First, we need to determine if view providers can be accessed by the starting element.\n // There are two possibilities\n const canAccessViewProviders = previousTView == null ?\n // 1) This is the first invocation `previousTView == null` which means that we are at the\n // `TNode` of where injector is starting to look. In such a case the only time we are allowed\n // to look into the ViewProviders is if:\n // - we are on a component\n // - AND the injector set `includeViewProviders` to true (implying that the token can see\n // ViewProviders because it is the Component or a Service which itself was declared in\n // ViewProviders)\n isComponentHost(tNode) && includeViewProviders :\n // 2) `previousTView != null` which means that we are now walking across the parent nodes.\n // In such a case we are only allowed to look into the ViewProviders if:\n // - We just crossed from child View to Parent View `previousTView != currentTView`\n // - AND the parent TNode is an Element.\n // This means that we just came from the Component's View and therefore are allowed to see\n // into the ViewProviders.\n previousTView != currentTView && (tNode.type & 3 /* TNodeType.AnyRNode */) !== 0;\n // This special case happens when there is a @host on the inject and when we are searching\n // on the host element node.\n const isHostSpecialCase = flags & 1 /* InternalInjectFlags.Host */ && hostTElementNode === tNode;\n const injectableIdx = locateDirectiveOrProvider(tNode, currentTView, token, canAccessViewProviders, isHostSpecialCase);\n if (injectableIdx !== null) {\n return getNodeInjectable(lView, currentTView, injectableIdx, tNode, flags);\n } else {\n return NOT_FOUND;\n }\n}\n/**\n * Searches for the given token among the node's directives and providers.\n *\n * @param tNode TNode on which directives are present.\n * @param tView The tView we are currently processing\n * @param token Provider token or type of a directive to look for.\n * @param canAccessViewProviders Whether view providers should be considered.\n * @param isHostSpecialCase Whether the host special case applies.\n * @returns Index of a found directive or provider, or null when none found.\n */\nfunction locateDirectiveOrProvider(tNode, tView, token, canAccessViewProviders, isHostSpecialCase) {\n const nodeProviderIndexes = tNode.providerIndexes;\n const tInjectables = tView.data;\n const injectablesStart = nodeProviderIndexes & 1048575 /* TNodeProviderIndexes.ProvidersStartIndexMask */;\n const directivesStart = tNode.directiveStart;\n const directiveEnd = tNode.directiveEnd;\n const cptViewProvidersCount = nodeProviderIndexes >> 20 /* TNodeProviderIndexes.CptViewProvidersCountShift */;\n const startingIndex = canAccessViewProviders ? injectablesStart : injectablesStart + cptViewProvidersCount;\n // When the host special case applies, only the viewProviders and the component are visible\n const endIndex = isHostSpecialCase ? injectablesStart + cptViewProvidersCount : directiveEnd;\n for (let i = startingIndex; i < endIndex; i++) {\n const providerTokenOrDef = tInjectables[i];\n if (i < directivesStart && token === providerTokenOrDef || i >= directivesStart && providerTokenOrDef.type === token) {\n return i;\n }\n }\n if (isHostSpecialCase) {\n const dirDef = tInjectables[directivesStart];\n if (dirDef && isComponentDef(dirDef) && dirDef.type === token) {\n return directivesStart;\n }\n }\n return null;\n}\n/**\n * Used in ngDevMode to keep the injection path in case of cycles in DI.\n */\nlet injectionPath = [];\n/**\n * Retrieve or instantiate the injectable from the `LView` at particular `index`.\n *\n * This function checks to see if the value has already been instantiated and if so returns the\n * cached `injectable`. Otherwise if it detects that the value is still a factory it\n * instantiates the `injectable` and caches the value.\n */\nfunction getNodeInjectable(lView, tView, index, tNode, flags) {\n let value = lView[index];\n const tData = tView.data;\n if (value instanceof NodeInjectorFactory) {\n const factory = value;\n ngDevMode && injectionPath.push(factory.name ?? 'unknown');\n if (factory.resolving) {\n const token = stringifyForError(tData[index]);\n if (ngDevMode) {\n throw cyclicDependencyErrorWithDetails(token, injectionPath);\n } else {\n throw cyclicDependencyError(token);\n }\n }\n const previousIncludeViewProviders = setIncludeViewProviders(factory.canSeeViewProviders);\n factory.resolving = true;\n // tData indexes mirror the concrete instances in its corresponding LView.\n // lView[index] here is either the injectable instance itself or a factory,\n // therefore tData[index] is the constructor of that injectable or a\n // definition object that contains the constructor in a `.type` field.\n const token = tData[index].type || tData[index];\n let prevInjectContext;\n if (ngDevMode) {\n const injector = new NodeInjector(tNode, lView);\n prevInjectContext = setInjectorProfilerContext({\n injector,\n token\n });\n }\n const previousInjectImplementation = factory.injectImpl ? setInjectImplementation(factory.injectImpl) : null;\n const success = enterDI(lView, tNode, 0 /* InternalInjectFlags.Default */);\n ngDevMode && assertEqual(success, true, \"Because flags do not contain `SkipSelf' we expect this to always succeed.\");\n try {\n ngDevMode && emitInjectorToCreateInstanceEvent(token);\n value = lView[index] = factory.factory(undefined, flags, tData, lView, tNode);\n ngDevMode && emitInstanceCreatedByInjectorEvent(value);\n // This code path is hit for both directives and providers.\n // For perf reasons, we want to avoid searching for hooks on providers.\n // It does no harm to try (the hooks just won't exist), but the extra\n // checks are unnecessary and this is a hot path. So we check to see\n // if the index of the dependency is in the directive range for this\n // tNode. If it's not, we know it's a provider and skip hook registration.\n if (tView.firstCreatePass && index >= tNode.directiveStart) {\n ngDevMode && assertDirectiveDef(tData[index]);\n registerPreOrderHooks(index, tData[index], tView);\n }\n } finally {\n ngDevMode && setInjectorProfilerContext(prevInjectContext);\n previousInjectImplementation !== null && setInjectImplementation(previousInjectImplementation);\n setIncludeViewProviders(previousIncludeViewProviders);\n factory.resolving = false;\n leaveDI();\n ngDevMode && (injectionPath = []);\n }\n }\n return value;\n}\n/**\n * Returns the bit in an injector's bloom filter that should be used to determine whether or not\n * the directive might be provided by the injector.\n *\n * When a directive is public, it is added to the bloom filter and given a unique ID that can be\n * retrieved on the Type. When the directive isn't public or the token is not a directive `null`\n * is returned as the node injector can not possibly provide that token.\n *\n * @param token the injection token\n * @returns the matching bit to check in the bloom filter or `null` if the token is not known.\n * When the returned value is negative then it represents special values such as `Injector`.\n */\nfunction bloomHashBitOrFactory(token) {\n ngDevMode && assertDefined(token, 'token must be defined');\n if (typeof token === 'string') {\n return token.charCodeAt(0) || 0;\n }\n const tokenId =\n // First check with `hasOwnProperty` so we don't get an inherited ID.\n token.hasOwnProperty(NG_ELEMENT_ID) ? token[NG_ELEMENT_ID] : undefined;\n // Negative token IDs are used for special objects such as `Injector`\n if (typeof tokenId === 'number') {\n if (tokenId >= 0) {\n return tokenId & BLOOM_MASK;\n } else {\n ngDevMode && assertEqual(tokenId, -1 /* InjectorMarkers.Injector */, 'Expecting to get Special Injector Id');\n return createNodeInjector;\n }\n } else {\n return tokenId;\n }\n}\nfunction bloomHasToken(bloomHash, injectorIndex, injectorView) {\n // Create a mask that targets the specific bit associated with the directive we're looking for.\n // JS bit operations are 32 bits, so this will be a number between 2^0 and 2^31, corresponding\n // to bit positions 0 - 31 in a 32 bit integer.\n const mask = 1 << bloomHash;\n // Each bloom bucket in `injectorView` represents `BLOOM_BUCKET_BITS` number of bits of\n // `bloomHash`. Any bits in `bloomHash` beyond `BLOOM_BUCKET_BITS` indicate the bucket offset\n // that should be used.\n const value = injectorView[injectorIndex + (bloomHash >> BLOOM_BUCKET_BITS)];\n // If the bloom filter value has the bit corresponding to the directive's bloomBit flipped on,\n // this injector is a potential match.\n return !!(value & mask);\n}\n/** Returns true if flags prevent parent injector from being searched for tokens */\nfunction shouldSearchParent(flags, isFirstHostTNode) {\n return !(flags & 2 /* InternalInjectFlags.Self */) && !(flags & 1 /* InternalInjectFlags.Host */ && isFirstHostTNode);\n}\nfunction getNodeInjectorLView(nodeInjector) {\n return nodeInjector._lView;\n}\nfunction getNodeInjectorTNode(nodeInjector) {\n return nodeInjector._tNode;\n}\nclass NodeInjector {\n _tNode;\n _lView;\n constructor(_tNode, _lView) {\n this._tNode = _tNode;\n this._lView = _lView;\n }\n get(token, notFoundValue, flags) {\n return getOrCreateInjectable(this._tNode, this._lView, token, convertToBitFlags(flags), notFoundValue);\n }\n}\n/** Creates a `NodeInjector` for the current node. */\nfunction createNodeInjector() {\n return new NodeInjector(getCurrentTNode(), getLView());\n}\n/**\n * @codeGenApi\n */\nfunction ɵɵgetInheritedFactory(type) {\n return noSideEffects(() => {\n const ownConstructor = type.prototype.constructor;\n const ownFactory = ownConstructor[NG_FACTORY_DEF] || getFactoryOf(ownConstructor);\n const objectPrototype = Object.prototype;\n let parent = Object.getPrototypeOf(type.prototype).constructor;\n // Go up the prototype until we hit `Object`.\n while (parent && parent !== objectPrototype) {\n const factory = parent[NG_FACTORY_DEF] || getFactoryOf(parent);\n // If we hit something that has a factory and the factory isn't the same as the type,\n // we've found the inherited factory. Note the check that the factory isn't the type's\n // own factory is redundant in most cases, but if the user has custom decorators on the\n // class, this lookup will start one level down in the prototype chain, causing us to\n // find the own factory first and potentially triggering an infinite loop downstream.\n if (factory && factory !== ownFactory) {\n return factory;\n }\n parent = Object.getPrototypeOf(parent);\n }\n // There is no factory defined. Either this was improper usage of inheritance\n // (no Angular decorator on the superclass) or there is no constructor at all\n // in the inheritance chain. Since the two cases cannot be distinguished, the\n // latter has to be assumed.\n return t => new t();\n });\n}\nfunction getFactoryOf(type) {\n if (isForwardRef(type)) {\n return () => {\n const factory = getFactoryOf(resolveForwardRef(type));\n return factory && factory();\n };\n }\n return getFactoryDef(type);\n}\n/**\n * Returns a value from the closest embedded or node injector.\n *\n * @param tNode The Node where the search for the injector should start\n * @param lView The `LView` that contains the `tNode`\n * @param token The token to look for\n * @param flags Injection flags\n * @param notFoundValue The value to return when the injection flags is `InternalInjectFlags.Optional`\n * @returns the value from the injector, `null` when not found, or `notFoundValue` if provided\n */\nfunction lookupTokenUsingEmbeddedInjector(tNode, lView, token, flags, notFoundValue) {\n let currentTNode = tNode;\n let currentLView = lView;\n // When an LView with an embedded view injector is inserted, it'll likely be interlaced with\n // nodes who may have injectors (e.g. node injector -> embedded view injector -> node injector).\n // Since the bloom filters for the node injectors have already been constructed and we don't\n // have a way of extracting the records from an injector, the only way to maintain the correct\n // hierarchy when resolving the value is to walk it node-by-node while attempting to resolve\n // the token at each level.\n while (currentTNode !== null && currentLView !== null && currentLView[FLAGS] & 2048 /* LViewFlags.HasEmbeddedViewInjector */ && !isRootView(currentLView)) {\n ngDevMode && assertTNodeForLView(currentTNode, currentLView);\n // Note that this lookup on the node injector is using the `Self` flag, because\n // we don't want the node injector to look at any parent injectors since we\n // may hit the embedded view injector first.\n const nodeInjectorValue = lookupTokenUsingNodeInjector(currentTNode, currentLView, token, flags | 2 /* InternalInjectFlags.Self */, NOT_FOUND);\n if (nodeInjectorValue !== NOT_FOUND) {\n return nodeInjectorValue;\n }\n // Has an explicit type due to a TS bug: https://github.com/microsoft/TypeScript/issues/33191\n let parentTNode = currentTNode.parent;\n // `TNode.parent` includes the parent within the current view only. If it doesn't exist,\n // it means that we've hit the view boundary and we need to go up to the next view.\n if (!parentTNode) {\n // Before we go to the next LView, check if the token exists on the current embedded injector.\n const embeddedViewInjector = currentLView[EMBEDDED_VIEW_INJECTOR];\n if (embeddedViewInjector) {\n const embeddedViewInjectorValue = embeddedViewInjector.get(token, NOT_FOUND, flags);\n if (embeddedViewInjectorValue !== NOT_FOUND) {\n return embeddedViewInjectorValue;\n }\n }\n // Otherwise keep going up the tree.\n parentTNode = getTNodeFromLView(currentLView);\n currentLView = currentLView[DECLARATION_VIEW];\n }\n currentTNode = parentTNode;\n }\n return notFoundValue;\n}\n/** Gets the TNode associated with an LView inside of the declaration view. */\nfunction getTNodeFromLView(lView) {\n const tView = lView[TVIEW];\n const tViewType = tView.type;\n // The parent pointer differs based on `TView.type`.\n if (tViewType === 2 /* TViewType.Embedded */) {\n ngDevMode && assertDefined(tView.declTNode, 'Embedded TNodes should have declaration parents.');\n return tView.declTNode;\n } else if (tViewType === 1 /* TViewType.Component */) {\n // Components don't have `TView.declTNode` because each instance of component could be\n // inserted in different location, hence `TView.declTNode` is meaningless.\n return lView[T_HOST];\n }\n return null;\n}\n\n/**\n * Facade for the attribute injection from DI.\n *\n * @codeGenApi\n */\nfunction ɵɵinjectAttribute(attrNameToInject) {\n return injectAttributeImpl(getCurrentTNode(), attrNameToInject);\n}\n\n/**\n * Attribute decorator and metadata.\n *\n * @Annotation\n * @publicApi\n */\nconst Attribute = makeParamDecorator('Attribute', attributeName => ({\n attributeName,\n __NG_ELEMENT_ID__: () => ɵɵinjectAttribute(attributeName)\n}));\nlet _reflect = null;\nfunction getReflect() {\n return _reflect = _reflect || new ReflectionCapabilities();\n}\nfunction reflectDependencies(type) {\n return convertDependencies(getReflect().parameters(type));\n}\nfunction convertDependencies(deps) {\n return deps.map(dep => reflectDependency(dep));\n}\nfunction reflectDependency(dep) {\n const meta = {\n token: null,\n attribute: null,\n host: false,\n optional: false,\n self: false,\n skipSelf: false\n };\n if (Array.isArray(dep) && dep.length > 0) {\n for (let j = 0; j < dep.length; j++) {\n const param = dep[j];\n if (param === undefined) {\n // param may be undefined if type of dep is not set by ngtsc\n continue;\n }\n const proto = Object.getPrototypeOf(param);\n if (param instanceof Optional || proto.ngMetadataName === 'Optional') {\n meta.optional = true;\n } else if (param instanceof SkipSelf || proto.ngMetadataName === 'SkipSelf') {\n meta.skipSelf = true;\n } else if (param instanceof Self || proto.ngMetadataName === 'Self') {\n meta.self = true;\n } else if (param instanceof Host || proto.ngMetadataName === 'Host') {\n meta.host = true;\n } else if (param instanceof Inject) {\n meta.token = param.token;\n } else if (param instanceof Attribute) {\n if (param.attributeName === undefined) {\n throw new RuntimeError(204 /* RuntimeErrorCode.INVALID_INJECTION_TOKEN */, ngDevMode && `Attribute name must be defined.`);\n }\n meta.attribute = param.attributeName;\n } else {\n meta.token = param;\n }\n }\n } else if (dep === undefined || Array.isArray(dep) && dep.length === 0) {\n meta.token = null;\n } else {\n meta.token = dep;\n }\n return meta;\n}\n\n/**\n * Compile an Angular injectable according to its `Injectable` metadata, and patch the resulting\n * injectable def (`ɵprov`) onto the injectable type.\n */\nfunction compileInjectable(type, meta) {\n let ngInjectableDef = null;\n let ngFactoryDef = null;\n // if NG_PROV_DEF is already defined on this class then don't overwrite it\n if (!type.hasOwnProperty(NG_PROV_DEF)) {\n Object.defineProperty(type, NG_PROV_DEF, {\n get: () => {\n if (ngInjectableDef === null) {\n const compiler = getCompilerFacade({\n usage: 0 /* JitCompilerUsage.Decorator */,\n kind: 'injectable',\n type\n });\n ngInjectableDef = compiler.compileInjectable(angularCoreDiEnv, `ng:///${type.name}/ɵprov.js`, getInjectableMetadata(type, meta));\n }\n return ngInjectableDef;\n }\n });\n }\n // if NG_FACTORY_DEF is already defined on this class then don't overwrite it\n if (!type.hasOwnProperty(NG_FACTORY_DEF)) {\n Object.defineProperty(type, NG_FACTORY_DEF, {\n get: () => {\n if (ngFactoryDef === null) {\n const compiler = getCompilerFacade({\n usage: 0 /* JitCompilerUsage.Decorator */,\n kind: 'injectable',\n type\n });\n ngFactoryDef = compiler.compileFactory(angularCoreDiEnv, `ng:///${type.name}/ɵfac.js`, {\n name: type.name,\n type,\n typeArgumentCount: 0,\n // In JIT mode types are not available nor used.\n deps: reflectDependencies(type),\n target: compiler.FactoryTarget.Injectable\n });\n }\n return ngFactoryDef;\n },\n // Leave this configurable so that the factories from directives or pipes can take precedence.\n configurable: true\n });\n }\n}\nconst USE_VALUE = getClosureSafeProperty({\n provide: String,\n useValue: getClosureSafeProperty\n});\nfunction isUseClassProvider(meta) {\n return meta.useClass !== undefined;\n}\nfunction isUseValueProvider(meta) {\n return USE_VALUE in meta;\n}\nfunction isUseFactoryProvider(meta) {\n return meta.useFactory !== undefined;\n}\nfunction isUseExistingProvider(meta) {\n return meta.useExisting !== undefined;\n}\nfunction getInjectableMetadata(type, srcMeta) {\n // Allow the compilation of a class with a `@Injectable()` decorator without parameters\n const meta = srcMeta || {\n providedIn: null\n };\n const compilerMeta = {\n name: type.name,\n type: type,\n typeArgumentCount: 0,\n providedIn: meta.providedIn\n };\n if ((isUseClassProvider(meta) || isUseFactoryProvider(meta)) && meta.deps !== undefined) {\n compilerMeta.deps = convertDependencies(meta.deps);\n }\n // Check to see if the user explicitly provided a `useXxxx` property.\n if (isUseClassProvider(meta)) {\n compilerMeta.useClass = meta.useClass;\n } else if (isUseValueProvider(meta)) {\n compilerMeta.useValue = meta.useValue;\n } else if (isUseFactoryProvider(meta)) {\n compilerMeta.useFactory = meta.useFactory;\n } else if (isUseExistingProvider(meta)) {\n compilerMeta.useExisting = meta.useExisting;\n }\n return compilerMeta;\n}\n\n/**\n * Injectable decorator and metadata.\n *\n * @Annotation\n * @publicApi\n */\nconst Injectable = makeDecorator('Injectable', undefined, undefined, undefined, (type, meta) => compileInjectable(type, meta));\n\n/**\n * Creates an ElementRef from the most recent node.\n *\n * @returns The ElementRef instance to use\n */\nfunction injectElementRef() {\n return createElementRef(getCurrentTNode(), getLView());\n}\n/**\n * Creates an ElementRef given a node.\n *\n * @param tNode The node for which you'd like an ElementRef\n * @param lView The view to which the node belongs\n * @returns The ElementRef instance to use\n */\nfunction createElementRef(tNode, lView) {\n return new ElementRef(getNativeByTNode(tNode, lView));\n}\n/**\n * A wrapper around a native element inside of a View.\n *\n * An `ElementRef` is backed by a render-specific element. In the browser, this is usually a DOM\n * element.\n *\n * @security Permitting direct access to the DOM can make your application more vulnerable to\n * XSS attacks. Carefully review any use of `ElementRef` in your code. For more detail, see the\n * [Security Guide](https://g.co/ng/security).\n *\n * @publicApi\n */\n// Note: We don't expose things like `Injector`, `ViewContainer`, ... here,\n// i.e. users have to ask for what they need. With that, we can build better analysis tools\n// and could do better codegen in the future.\nclass ElementRef {\n /**\n *
\n *
Use with caution
\n *

\n * Use this API as the last resort when direct access to DOM is needed. Use templating and\n * data-binding provided by Angular instead. If used, it is recommended in combination with\n * {@link /best-practices/security#direct-use-of-the-dom-apis-and-explicit-sanitization-calls DomSanitizer}\n * for maxiumum security;\n *

\n *
\n */\n nativeElement;\n constructor(nativeElement) {\n this.nativeElement = nativeElement;\n }\n /**\n * @internal\n * @nocollapse\n */\n static __NG_ELEMENT_ID__ = injectElementRef;\n}\n/**\n * Unwraps `ElementRef` and return the `nativeElement`.\n *\n * @param value value to unwrap\n * @returns `nativeElement` if `ElementRef` otherwise returns value as is.\n */\nfunction unwrapElementRef(value) {\n return value instanceof ElementRef ? value.nativeElement : value;\n}\nfunction symbolIterator() {\n // @ts-expect-error accessing a private member\n return this._results[Symbol.iterator]();\n}\n/**\n * An unmodifiable list of items that Angular keeps up to date when the state\n * of the application changes.\n *\n * The type of object that {@link ViewChildren}, {@link ContentChildren}, and {@link QueryList}\n * provide.\n *\n * Implements an iterable interface, therefore it can be used in both ES6\n * javascript `for (var i of items)` loops as well as in Angular templates with\n * `@for(i of myList; track $index)`.\n *\n * Changes can be observed by subscribing to the `changes` `Observable`.\n * *\n * @usageNotes\n * ### Example\n * ```ts\n * @Component({...})\n * class Container {\n * @ViewChildren(Item) items:QueryList;\n * }\n * ```\n *\n * @publicApi\n */\nclass QueryList {\n _emitDistinctChangesOnly;\n dirty = true;\n _onDirty = undefined;\n _results = [];\n _changesDetected = false;\n _changes = undefined;\n length = 0;\n first = undefined;\n last = undefined;\n /**\n * Returns `Observable` of `QueryList` notifying the subscriber of changes.\n */\n get changes() {\n return this._changes ??= new Subject();\n }\n /**\n * @param emitDistinctChangesOnly Whether `QueryList.changes` should fire only when actual change\n * has occurred. Or if it should fire when query is recomputed. (recomputing could resolve in\n * the same result)\n */\n constructor(_emitDistinctChangesOnly = false) {\n this._emitDistinctChangesOnly = _emitDistinctChangesOnly;\n }\n /**\n * Returns the QueryList entry at `index`.\n */\n get(index) {\n return this._results[index];\n }\n /**\n * See\n * [Array.map](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map)\n */\n map(fn) {\n return this._results.map(fn);\n }\n filter(fn) {\n return this._results.filter(fn);\n }\n /**\n * See\n * [Array.find](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/find)\n */\n find(fn) {\n return this._results.find(fn);\n }\n /**\n * See\n * [Array.reduce](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reduce)\n */\n reduce(fn, init) {\n return this._results.reduce(fn, init);\n }\n /**\n * See\n * [Array.forEach](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach)\n */\n forEach(fn) {\n this._results.forEach(fn);\n }\n /**\n * See\n * [Array.some](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/some)\n */\n some(fn) {\n return this._results.some(fn);\n }\n /**\n * Returns a copy of the internal results list as an Array.\n */\n toArray() {\n return this._results.slice();\n }\n toString() {\n return this._results.toString();\n }\n /**\n * Updates the stored data of the query list, and resets the `dirty` flag to `false`, so that\n * on change detection, it will not notify of changes to the queries, unless a new change\n * occurs.\n *\n * @param resultsTree The query results to store\n * @param identityAccessor Optional function for extracting stable object identity from a value\n * in the array. This function is executed for each element of the query result list while\n * comparing current query list with the new one (provided as a first argument of the `reset`\n * function) to detect if the lists are different. If the function is not provided, elements\n * are compared as is (without any pre-processing).\n */\n reset(resultsTree, identityAccessor) {\n this.dirty = false;\n const newResultFlat = flatten(resultsTree);\n if (this._changesDetected = !arrayEquals(this._results, newResultFlat, identityAccessor)) {\n this._results = newResultFlat;\n this.length = newResultFlat.length;\n this.last = newResultFlat[this.length - 1];\n this.first = newResultFlat[0];\n }\n }\n /**\n * Triggers a change event by emitting on the `changes` {@link EventEmitter}.\n */\n notifyOnChanges() {\n if (this._changes !== undefined && (this._changesDetected || !this._emitDistinctChangesOnly)) this._changes.next(this);\n }\n /** @internal */\n onDirty(cb) {\n this._onDirty = cb;\n }\n /** internal */\n setDirty() {\n this.dirty = true;\n this._onDirty?.();\n }\n /** internal */\n destroy() {\n if (this._changes !== undefined) {\n this._changes.complete();\n this._changes.unsubscribe();\n }\n }\n [Symbol.iterator] = (() => symbolIterator)();\n}\n\n/**\n * The name of an attribute that can be added to the hydration boundary node\n * (component host node) to disable hydration for the content within that boundary.\n */\nconst SKIP_HYDRATION_ATTR_NAME = 'ngSkipHydration';\n/** Lowercase name of the `ngSkipHydration` attribute used for case-insensitive comparisons. */\nconst SKIP_HYDRATION_ATTR_NAME_LOWER_CASE = 'ngskiphydration';\n/**\n * Helper function to check if a given TNode has the 'ngSkipHydration' attribute.\n */\nfunction hasSkipHydrationAttrOnTNode(tNode) {\n const attrs = tNode.mergedAttrs;\n if (attrs === null) return false;\n // only ever look at the attribute name and skip the values\n for (let i = 0; i < attrs.length; i += 2) {\n const value = attrs[i];\n // This is a marker, which means that the static attributes section is over,\n // so we can exit early.\n if (typeof value === 'number') return false;\n if (typeof value === 'string' && value.toLowerCase() === SKIP_HYDRATION_ATTR_NAME_LOWER_CASE) {\n return true;\n }\n }\n return false;\n}\n/**\n * Helper function to check if a given RElement has the 'ngSkipHydration' attribute.\n */\nfunction hasSkipHydrationAttrOnRElement(rNode) {\n return rNode.hasAttribute(SKIP_HYDRATION_ATTR_NAME);\n}\n/**\n * Checks whether a TNode has a flag to indicate that it's a part of\n * a skip hydration block.\n */\nfunction hasInSkipHydrationBlockFlag(tNode) {\n return (tNode.flags & 128 /* TNodeFlags.inSkipHydrationBlock */) === 128 /* TNodeFlags.inSkipHydrationBlock */;\n}\n/**\n * Helper function that determines if a given node is within a skip hydration block\n * by navigating up the TNode tree to see if any parent nodes have skip hydration\n * attribute.\n */\nfunction isInSkipHydrationBlock(tNode) {\n if (hasInSkipHydrationBlockFlag(tNode)) {\n return true;\n }\n let currentTNode = tNode.parent;\n while (currentTNode) {\n if (hasInSkipHydrationBlockFlag(tNode) || hasSkipHydrationAttrOnTNode(currentTNode)) {\n return true;\n }\n currentTNode = currentTNode.parent;\n }\n return false;\n}\n/**\n * Check if an i18n block is in a skip hydration section by looking at a parent TNode\n * to determine if this TNode is in a skip hydration section or the TNode has\n * the `ngSkipHydration` attribute.\n */\nfunction isI18nInSkipHydrationBlock(parentTNode) {\n return hasInSkipHydrationBlockFlag(parentTNode) || hasSkipHydrationAttrOnTNode(parentTNode) || isInSkipHydrationBlock(parentTNode);\n}\n\n/**\n * The strategy that the default change detector uses to detect changes.\n * When set, takes effect the next time change detection is triggered.\n *\n * @see {@link /api/core/ChangeDetectorRef?tab=usage-notes Change detection usage}\n * @see {@link /best-practices/skipping-subtrees Skipping component subtrees}\n *\n * @publicApi\n */\nvar ChangeDetectionStrategy;\n(function (ChangeDetectionStrategy) {\n /**\n * Use the `CheckOnce` strategy, meaning that automatic change detection is deactivated\n * until reactivated by setting the strategy to `Default` (`CheckAlways`).\n * Change detection can still be explicitly invoked.\n * This strategy applies to all child directives and cannot be overridden.\n */\n ChangeDetectionStrategy[ChangeDetectionStrategy[\"OnPush\"] = 0] = \"OnPush\";\n /**\n * Use the default `CheckAlways` strategy, in which change detection is automatic until\n * explicitly deactivated.\n */\n ChangeDetectionStrategy[ChangeDetectionStrategy[\"Default\"] = 1] = \"Default\";\n})(ChangeDetectionStrategy || (ChangeDetectionStrategy = {}));\n\n// Keeps track of the currently-active LViews.\nconst TRACKED_LVIEWS = new Map();\n// Used for generating unique IDs for LViews.\nlet uniqueIdCounter = 0;\n/** Gets a unique ID that can be assigned to an LView. */\nfunction getUniqueLViewId() {\n return uniqueIdCounter++;\n}\n/** Starts tracking an LView. */\nfunction registerLView(lView) {\n ngDevMode && assertNumber(lView[ID], 'LView must have an ID in order to be registered');\n TRACKED_LVIEWS.set(lView[ID], lView);\n}\n/** Gets an LView by its unique ID. */\nfunction getLViewById(id) {\n ngDevMode && assertNumber(id, 'ID used for LView lookup must be a number');\n return TRACKED_LVIEWS.get(id) || null;\n}\n/** Stops tracking an LView. */\nfunction unregisterLView(lView) {\n ngDevMode && assertNumber(lView[ID], 'Cannot stop tracking an LView that does not have an ID');\n TRACKED_LVIEWS.delete(lView[ID]);\n}\n/** Gets the currently-tracked views. */\nfunction getTrackedLViews() {\n return TRACKED_LVIEWS;\n}\n\n/**\n * The internal view context which is specific to a given DOM element, directive or\n * component instance. Each value in here (besides the LView and element node details)\n * can be present, null or undefined. If undefined then it implies the value has not been\n * looked up yet, otherwise, if null, then a lookup was executed and nothing was found.\n *\n * Each value will get filled when the respective value is examined within the getContext\n * function. The component, element and each directive instance will share the same instance\n * of the context.\n */\nclass LContext {\n lViewId;\n nodeIndex;\n native;\n /**\n * The instance of the Component node.\n */\n component;\n /**\n * The list of active directives that exist on this element.\n */\n directives;\n /**\n * The map of local references (local reference name => element or directive instance) that\n * exist on this element.\n */\n localRefs;\n /** Component's parent view data. */\n get lView() {\n return getLViewById(this.lViewId);\n }\n constructor(\n /**\n * ID of the component's parent view data.\n */\n lViewId,\n /**\n * The index instance of the node.\n */\n nodeIndex,\n /**\n * The instance of the DOM node that is attached to the lNode.\n */\n native) {\n this.lViewId = lViewId;\n this.nodeIndex = nodeIndex;\n this.native = native;\n }\n}\n\n/**\n * Returns the matching `LContext` data for a given DOM node, directive or component instance.\n *\n * This function will examine the provided DOM element, component, or directive instance\\'s\n * monkey-patched property to derive the `LContext` data. Once called then the monkey-patched\n * value will be that of the newly created `LContext`.\n *\n * If the monkey-patched value is the `LView` instance then the context value for that\n * target will be created and the monkey-patch reference will be updated. Therefore when this\n * function is called it may mutate the provided element\\'s, component\\'s or any of the associated\n * directive\\'s monkey-patch values.\n *\n * If the monkey-patch value is not detected then the code will walk up the DOM until an element\n * is found which contains a monkey-patch reference. When that occurs then the provided element\n * will be updated with a new context (which is then returned). If the monkey-patch value is not\n * detected for a component/directive instance then it will throw an error (all components and\n * directives should be automatically monkey-patched by ivy).\n *\n * @param target Component, Directive or DOM Node.\n */\nfunction getLContext(target) {\n let mpValue = readPatchedData(target);\n if (mpValue) {\n // only when it's an array is it considered an LView instance\n // ... otherwise it's an already constructed LContext instance\n if (isLView(mpValue)) {\n const lView = mpValue;\n let nodeIndex;\n let component = undefined;\n let directives = undefined;\n if (isComponentInstance(target)) {\n nodeIndex = findViaComponent(lView, target);\n if (nodeIndex == -1) {\n throw new Error('The provided component was not found in the application');\n }\n component = target;\n } else if (isDirectiveInstance(target)) {\n nodeIndex = findViaDirective(lView, target);\n if (nodeIndex == -1) {\n throw new Error('The provided directive was not found in the application');\n }\n directives = getDirectivesAtNodeIndex(nodeIndex, lView);\n } else {\n nodeIndex = findViaNativeElement(lView, target);\n if (nodeIndex == -1) {\n return null;\n }\n }\n // the goal is not to fill the entire context full of data because the lookups\n // are expensive. Instead, only the target data (the element, component, container, ICU\n // expression or directive details) are filled into the context. If called multiple times\n // with different target values then the missing target data will be filled in.\n const native = unwrapRNode(lView[nodeIndex]);\n const existingCtx = readPatchedData(native);\n const context = existingCtx && !Array.isArray(existingCtx) ? existingCtx : createLContext(lView, nodeIndex, native);\n // only when the component has been discovered then update the monkey-patch\n if (component && context.component === undefined) {\n context.component = component;\n attachPatchData(context.component, context);\n }\n // only when the directives have been discovered then update the monkey-patch\n if (directives && context.directives === undefined) {\n context.directives = directives;\n for (let i = 0; i < directives.length; i++) {\n attachPatchData(directives[i], context);\n }\n }\n attachPatchData(context.native, context);\n mpValue = context;\n }\n } else {\n const rElement = target;\n ngDevMode && assertDomNode(rElement);\n // if the context is not found then we need to traverse upwards up the DOM\n // to find the nearest element that has already been monkey patched with data\n let parent = rElement;\n while (parent = parent.parentNode) {\n const parentContext = readPatchedData(parent);\n if (parentContext) {\n const lView = Array.isArray(parentContext) ? parentContext : parentContext.lView;\n // the edge of the app was also reached here through another means\n // (maybe because the DOM was changed manually).\n if (!lView) {\n return null;\n }\n const index = findViaNativeElement(lView, rElement);\n if (index >= 0) {\n const native = unwrapRNode(lView[index]);\n const context = createLContext(lView, index, native);\n attachPatchData(native, context);\n mpValue = context;\n break;\n }\n }\n }\n }\n return mpValue || null;\n}\n/**\n * Creates an empty instance of a `LContext` context\n */\nfunction createLContext(lView, nodeIndex, native) {\n return new LContext(lView[ID], nodeIndex, native);\n}\n/**\n * Takes a component instance and returns the view for that component.\n *\n * @param componentInstance\n * @returns The component's view\n */\nfunction getComponentViewByInstance(componentInstance) {\n let patchedData = readPatchedData(componentInstance);\n let lView;\n if (isLView(patchedData)) {\n const contextLView = patchedData;\n const nodeIndex = findViaComponent(contextLView, componentInstance);\n lView = getComponentLViewByIndex(nodeIndex, contextLView);\n const context = createLContext(contextLView, nodeIndex, lView[HOST]);\n context.component = componentInstance;\n attachPatchData(componentInstance, context);\n attachPatchData(context.native, context);\n } else {\n const context = patchedData;\n const contextLView = context.lView;\n ngDevMode && assertLView(contextLView);\n lView = getComponentLViewByIndex(context.nodeIndex, contextLView);\n }\n return lView;\n}\n/**\n * This property will be monkey-patched on elements, components and directives.\n */\nconst MONKEY_PATCH_KEY_NAME = '__ngContext__';\n/**\n * Assigns the given data to the given target (which could be a component,\n * directive or DOM node instance) using monkey-patching.\n */\nfunction attachPatchData(target, data) {\n ngDevMode && assertDefined(target, 'Target expected');\n // Only attach the ID of the view in order to avoid memory leaks (see #41047). We only do this\n // for `LView`, because we have control over when an `LView` is created and destroyed, whereas\n // we can't know when to remove an `LContext`.\n if (isLView(data)) {\n target[MONKEY_PATCH_KEY_NAME] = data[ID];\n registerLView(data);\n } else {\n target[MONKEY_PATCH_KEY_NAME] = data;\n }\n}\n/**\n * Returns the monkey-patch value data present on the target (which could be\n * a component, directive or a DOM node).\n */\nfunction readPatchedData(target) {\n ngDevMode && assertDefined(target, 'Target expected');\n const data = target[MONKEY_PATCH_KEY_NAME];\n return typeof data === 'number' ? getLViewById(data) : data || null;\n}\nfunction readPatchedLView(target) {\n const value = readPatchedData(target);\n if (value) {\n return isLView(value) ? value : value.lView;\n }\n return null;\n}\nfunction isComponentInstance(instance) {\n return instance && instance.constructor && instance.constructor.ɵcmp;\n}\nfunction isDirectiveInstance(instance) {\n return instance && instance.constructor && instance.constructor.ɵdir;\n}\n/**\n * Locates the element within the given LView and returns the matching index\n */\nfunction findViaNativeElement(lView, target) {\n const tView = lView[TVIEW];\n for (let i = HEADER_OFFSET; i < tView.bindingStartIndex; i++) {\n if (unwrapRNode(lView[i]) === target) {\n return i;\n }\n }\n return -1;\n}\n/**\n * Locates the next tNode (child, sibling or parent).\n */\nfunction traverseNextElement(tNode) {\n if (tNode.child) {\n return tNode.child;\n } else if (tNode.next) {\n return tNode.next;\n } else {\n // Let's take the following template:
text
\n // After checking the text node, we need to find the next parent that has a \"next\" TNode,\n // in this case the parent `div`, so that we can find the component.\n while (tNode.parent && !tNode.parent.next) {\n tNode = tNode.parent;\n }\n return tNode.parent && tNode.parent.next;\n }\n}\n/**\n * Locates the component within the given LView and returns the matching index\n */\nfunction findViaComponent(lView, componentInstance) {\n const componentIndices = lView[TVIEW].components;\n if (componentIndices) {\n for (let i = 0; i < componentIndices.length; i++) {\n const elementComponentIndex = componentIndices[i];\n const componentView = getComponentLViewByIndex(elementComponentIndex, lView);\n if (componentView[CONTEXT] === componentInstance) {\n return elementComponentIndex;\n }\n }\n } else {\n const rootComponentView = getComponentLViewByIndex(HEADER_OFFSET, lView);\n const rootComponent = rootComponentView[CONTEXT];\n if (rootComponent === componentInstance) {\n // we are dealing with the root element here therefore we know that the\n // element is the very first element after the HEADER data in the lView\n return HEADER_OFFSET;\n }\n }\n return -1;\n}\n/**\n * Locates the directive within the given LView and returns the matching index\n */\nfunction findViaDirective(lView, directiveInstance) {\n // if a directive is monkey patched then it will (by default)\n // have a reference to the LView of the current view. The\n // element bound to the directive being search lives somewhere\n // in the view data. We loop through the nodes and check their\n // list of directives for the instance.\n let tNode = lView[TVIEW].firstChild;\n while (tNode) {\n const directiveIndexStart = tNode.directiveStart;\n const directiveIndexEnd = tNode.directiveEnd;\n for (let i = directiveIndexStart; i < directiveIndexEnd; i++) {\n if (lView[i] === directiveInstance) {\n return tNode.index;\n }\n }\n tNode = traverseNextElement(tNode);\n }\n return -1;\n}\n/**\n * Returns a list of directives applied to a node at a specific index. The list includes\n * directives matched by selector and any host directives, but it excludes components.\n * Use `getComponentAtNodeIndex` to find the component applied to a node.\n *\n * @param nodeIndex The node index\n * @param lView The target view data\n */\nfunction getDirectivesAtNodeIndex(nodeIndex, lView) {\n const tNode = lView[TVIEW].data[nodeIndex];\n if (tNode.directiveStart === 0) return EMPTY_ARRAY;\n const results = [];\n for (let i = tNode.directiveStart; i < tNode.directiveEnd; i++) {\n const directiveInstance = lView[i];\n if (!isComponentInstance(directiveInstance)) {\n results.push(directiveInstance);\n }\n }\n return results;\n}\nfunction getComponentAtNodeIndex(nodeIndex, lView) {\n const tNode = lView[TVIEW].data[nodeIndex];\n return isComponentHost(tNode) ? lView[tNode.directiveStart + tNode.componentOffset] : null;\n}\n/**\n * Returns a map of local references (local reference name => element or directive instance) that\n * exist on a given element.\n */\nfunction discoverLocalRefs(lView, nodeIndex) {\n const tNode = lView[TVIEW].data[nodeIndex];\n if (tNode && tNode.localNames) {\n const result = {};\n let localIndex = tNode.index + 1;\n for (let i = 0; i < tNode.localNames.length; i += 2) {\n result[tNode.localNames[i]] = lView[localIndex];\n localIndex++;\n }\n return result;\n }\n return null;\n}\n\n/**\n * Retrieve the root view from any component or `LView` by walking the parent `LView` until\n * reaching the root `LView`.\n *\n * @param componentOrLView any component or `LView`\n */\nfunction getRootView(componentOrLView) {\n ngDevMode && assertDefined(componentOrLView, 'component');\n let lView = isLView(componentOrLView) ? componentOrLView : readPatchedLView(componentOrLView);\n while (lView && !isRootView(lView)) {\n lView = getLViewParent(lView);\n }\n ngDevMode && assertLView(lView);\n return lView;\n}\n/**\n * Returns the context information associated with the application where the target is situated. It\n * does this by walking the parent views until it gets to the root view, then getting the context\n * off of that.\n *\n * @param viewOrComponent the `LView` or component to get the root context for.\n */\nfunction getRootContext(viewOrComponent) {\n const rootView = getRootView(viewOrComponent);\n ngDevMode && assertDefined(rootView[CONTEXT], 'Root view has no context. Perhaps it is disconnected?');\n return rootView[CONTEXT];\n}\n/**\n * Gets the first `LContainer` in the LView or `null` if none exists.\n */\nfunction getFirstLContainer(lView) {\n return getNearestLContainer(lView[CHILD_HEAD]);\n}\n/**\n * Gets the next `LContainer` that is a sibling of the given container.\n */\nfunction getNextLContainer(container) {\n return getNearestLContainer(container[NEXT]);\n}\nfunction getNearestLContainer(viewOrContainer) {\n while (viewOrContainer !== null && !isLContainer(viewOrContainer)) {\n viewOrContainer = viewOrContainer[NEXT];\n }\n return viewOrContainer;\n}\n\n/**\n * Retrieves the component instance associated with a given DOM element.\n *\n * @usageNotes\n * Given the following DOM structure:\n *\n * ```html\n * \n *
\n * \n *
\n *
\n * ```\n *\n * Calling `getComponent` on `` will return the instance of `ChildComponent`\n * associated with this DOM element.\n *\n * Calling the function on `` will return the `MyApp` instance.\n *\n *\n * @param element DOM element from which the component should be retrieved.\n * @returns Component instance associated with the element or `null` if there\n * is no component associated with it.\n *\n * @publicApi\n */\nfunction getComponent(element) {\n ngDevMode && assertDomElement(element);\n const context = getLContext(element);\n if (context === null) return null;\n if (context.component === undefined) {\n const lView = context.lView;\n if (lView === null) {\n return null;\n }\n context.component = getComponentAtNodeIndex(context.nodeIndex, lView);\n }\n return context.component;\n}\n/**\n * If inside an embedded view (e.g. `*ngIf` or `*ngFor`), retrieves the context of the embedded\n * view that the element is part of. Otherwise retrieves the instance of the component whose view\n * owns the element (in this case, the result is the same as calling `getOwningComponent`).\n *\n * @param element Element for which to get the surrounding component instance.\n * @returns Instance of the component that is around the element or null if the element isn't\n * inside any component.\n *\n * @publicApi\n */\nfunction getContext(element) {\n assertDomElement(element);\n const context = getLContext(element);\n const lView = context ? context.lView : null;\n return lView === null ? null : lView[CONTEXT];\n}\n/**\n * Retrieves the component instance whose view contains the DOM element.\n *\n * For example, if `` is used in the template of ``\n * (i.e. a `ViewChild` of ``), calling `getOwningComponent` on ``\n * would return ``.\n *\n * @param elementOrDir DOM element, component or directive instance\n * for which to retrieve the root components.\n * @returns Component instance whose view owns the DOM element or null if the element is not\n * part of a component view.\n *\n * @publicApi\n */\nfunction getOwningComponent(elementOrDir) {\n const context = getLContext(elementOrDir);\n let lView = context ? context.lView : null;\n if (lView === null) return null;\n let parent;\n while (lView[TVIEW].type === 2 /* TViewType.Embedded */ && (parent = getLViewParent(lView))) {\n lView = parent;\n }\n return isRootView(lView) ? null : lView[CONTEXT];\n}\n/**\n * Retrieves all root components associated with a DOM element, directive or component instance.\n * Root components are those which have been bootstrapped by Angular.\n *\n * @param elementOrDir DOM element, component or directive instance\n * for which to retrieve the root components.\n * @returns Root components associated with the target object.\n *\n * @publicApi\n */\nfunction getRootComponents(elementOrDir) {\n const lView = readPatchedLView(elementOrDir);\n return lView !== null ? [getRootContext(lView)] : [];\n}\n/**\n * Retrieves an `Injector` associated with an element, component or directive instance.\n *\n * @param elementOrDir DOM element, component or directive instance for which to\n * retrieve the injector.\n * @returns Injector associated with the element, component or directive instance.\n *\n * @publicApi\n */\nfunction getInjector(elementOrDir) {\n const context = getLContext(elementOrDir);\n const lView = context ? context.lView : null;\n if (lView === null) return Injector.NULL;\n const tNode = lView[TVIEW].data[context.nodeIndex];\n return new NodeInjector(tNode, lView);\n}\n/**\n * Retrieve a set of injection tokens at a given DOM node.\n *\n * @param element Element for which the injection tokens should be retrieved.\n */\nfunction getInjectionTokens(element) {\n const context = getLContext(element);\n const lView = context ? context.lView : null;\n if (lView === null) return [];\n const tView = lView[TVIEW];\n const tNode = tView.data[context.nodeIndex];\n const providerTokens = [];\n const startIndex = tNode.providerIndexes & 1048575 /* TNodeProviderIndexes.ProvidersStartIndexMask */;\n const endIndex = tNode.directiveEnd;\n for (let i = startIndex; i < endIndex; i++) {\n let value = tView.data[i];\n if (isDirectiveDefHack(value)) {\n // The fact that we sometimes store Type and sometimes DirectiveDef in this location is a\n // design flaw. We should always store same type so that we can be monomorphic. The issue\n // is that for Components/Directives we store the def instead the type. The correct behavior\n // is that we should always be storing injectable type in this location.\n value = value.type;\n }\n providerTokens.push(value);\n }\n return providerTokens;\n}\n/**\n * Retrieves directive instances associated with a given DOM node. Does not include\n * component instances.\n *\n * @usageNotes\n * Given the following DOM structure:\n *\n * ```html\n * \n * \n * \n * \n * ```\n *\n * Calling `getDirectives` on `