@angular/core
Version:
Angular - the core framework
367 lines • 56.9 kB
JavaScript
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import { consumerAfterComputation, consumerBeforeComputation, consumerPollProducersForChange } from '@angular/core/primitives/signals';
import { RuntimeError } from '../../errors';
import { assertDefined, assertEqual } from '../../util/assert';
import { assertLContainer } from '../assert';
import { getComponentViewByInstance } from '../context_discovery';
import { executeCheckHooks, executeInitAndCheckHooks, incrementInitPhaseFlags } from '../hooks';
import { CONTAINER_HEADER_OFFSET, HAS_CHILD_VIEWS_TO_REFRESH, HAS_TRANSPLANTED_VIEWS, MOVED_VIEWS } from '../interfaces/container';
import { CONTEXT, EFFECTS_TO_SCHEDULE, ENVIRONMENT, FLAGS, PARENT, REACTIVE_TEMPLATE_CONSUMER, TVIEW } from '../interfaces/view';
import { getOrBorrowReactiveLViewConsumer, maybeReturnReactiveLViewConsumer } from '../reactive_lview_consumer';
import { enterView, isInCheckNoChangesMode, leaveView, setBindingIndex, setIsInCheckNoChangesMode } from '../state';
import { getFirstLContainer, getNextLContainer } from '../util/view_traversal_utils';
import { getComponentLViewByIndex, isCreationMode, markAncestorsForTraversal, markViewForRefresh, resetPreOrderHookFlags, viewAttachedToChangeDetector } from '../util/view_utils';
import { executeTemplate, executeViewQueryFn, handleError, processHostBindingOpCodes, refreshContentQueries } from './shared';
/**
* The maximum number of times the change detection traversal will rerun before throwing an error.
*/
const MAXIMUM_REFRESH_RERUNS = 100;
export function detectChangesInternal(tView, lView, context, notifyErrorHandler = true) {
const environment = lView[ENVIRONMENT];
const rendererFactory = environment.rendererFactory;
const afterRenderEventManager = environment.afterRenderEventManager;
// Check no changes mode is a dev only mode used to verify that bindings have not changed
// since they were assigned. We do not want to invoke renderer factory functions in that mode
// to avoid any possible side-effects.
const checkNoChangesMode = !!ngDevMode && isInCheckNoChangesMode();
if (!checkNoChangesMode) {
rendererFactory.begin?.();
afterRenderEventManager?.begin();
}
try {
refreshView(tView, lView, tView.template, context);
let retries = 0;
// If after running change detection, this view still needs to be refreshed or there are
// descendants views that need to be refreshed due to re-dirtying during the change detection
// run, detect changes on the view again. We run change detection in `Targeted` mode to only
// refresh views with the `RefreshView` flag.
while (lView[FLAGS] & (1024 /* LViewFlags.RefreshView */ | 8192 /* LViewFlags.HasChildViewsToRefresh */) ||
lView[REACTIVE_TEMPLATE_CONSUMER]?.dirty) {
if (retries === MAXIMUM_REFRESH_RERUNS) {
throw new RuntimeError(103 /* RuntimeErrorCode.INFINITE_CHANGE_DETECTION */, ngDevMode &&
'Infinite change detection while trying to refresh views. ' +
'There may be components which each cause the other to require a refresh, ' +
'causing an infinite loop.');
}
retries++;
// Even if this view is detached, we still detect changes in targeted mode because this was
// the root of the change detection run.
detectChangesInView(lView, 1 /* ChangeDetectionMode.Targeted */);
}
}
catch (error) {
if (notifyErrorHandler) {
handleError(lView, error);
}
throw error;
}
finally {
if (!checkNoChangesMode) {
rendererFactory.end?.();
// One final flush of the effects queue to catch any effects created in `ngAfterViewInit` or
// other post-order hooks.
environment.inlineEffectRunner?.flush();
// Invoke all callbacks registered via `after*Render`, if needed.
afterRenderEventManager?.end();
}
}
}
export function checkNoChangesInternal(tView, lView, context, notifyErrorHandler = true) {
setIsInCheckNoChangesMode(true);
try {
detectChangesInternal(tView, lView, context, notifyErrorHandler);
}
finally {
setIsInCheckNoChangesMode(false);
}
}
/**
* Synchronously perform change detection on a component (and possibly its sub-components).
*
* This function triggers change detection in a synchronous way on a component.
*
* @param component The component which the change detection should be performed on.
*/
export function detectChanges(component) {
const view = getComponentViewByInstance(component);
detectChangesInternal(view[TVIEW], view, component);
}
/**
* Processes a view in update mode. This includes a number of steps in a specific order:
* - executing a template function in update mode;
* - executing hooks;
* - refreshing queries;
* - setting host bindings;
* - refreshing child (embedded and component) views.
*/
export function refreshView(tView, lView, templateFn, context) {
ngDevMode && assertEqual(isCreationMode(lView), false, 'Should be run in update mode');
const flags = lView[FLAGS];
if ((flags & 256 /* LViewFlags.Destroyed */) === 256 /* LViewFlags.Destroyed */)
return;
// Check no changes mode is a dev only mode used to verify that bindings have not changed
// since they were assigned. We do not want to execute lifecycle hooks in that mode.
const isInCheckNoChangesPass = ngDevMode && isInCheckNoChangesMode();
!isInCheckNoChangesPass && lView[ENVIRONMENT].inlineEffectRunner?.flush();
// Start component reactive context
// - We might already be in a reactive context if this is an embedded view of the host.
// - We might be descending into a view that needs a consumer.
enterView(lView);
let prevConsumer = null;
let currentConsumer = null;
if (!isInCheckNoChangesPass && viewShouldHaveReactiveConsumer(tView)) {
currentConsumer = getOrBorrowReactiveLViewConsumer(lView);
prevConsumer = consumerBeforeComputation(currentConsumer);
}
try {
resetPreOrderHookFlags(lView);
setBindingIndex(tView.bindingStartIndex);
if (templateFn !== null) {
executeTemplate(tView, lView, templateFn, 2 /* RenderFlags.Update */, context);
}
const hooksInitPhaseCompleted = (flags & 3 /* LViewFlags.InitPhaseStateMask */) === 3 /* InitPhaseState.InitPhaseCompleted */;
// execute pre-order hooks (OnInit, OnChanges, DoCheck)
// PERF WARNING: do NOT extract this to a separate function without running benchmarks
if (!isInCheckNoChangesPass) {
if (hooksInitPhaseCompleted) {
const preOrderCheckHooks = tView.preOrderCheckHooks;
if (preOrderCheckHooks !== null) {
executeCheckHooks(lView, preOrderCheckHooks, null);
}
}
else {
const preOrderHooks = tView.preOrderHooks;
if (preOrderHooks !== null) {
executeInitAndCheckHooks(lView, preOrderHooks, 0 /* InitPhaseState.OnInitHooksToBeRun */, null);
}
incrementInitPhaseFlags(lView, 0 /* InitPhaseState.OnInitHooksToBeRun */);
}
}
// First mark transplanted views that are declared in this lView as needing a refresh at their
// insertion points. This is needed to avoid the situation where the template is defined in this
// `LView` but its declaration appears after the insertion component.
markTransplantedViewsForRefresh(lView);
detectChangesInEmbeddedViews(lView, 0 /* ChangeDetectionMode.Global */);
// Content query results must be refreshed before content hooks are called.
if (tView.contentQueries !== null) {
refreshContentQueries(tView, lView);
}
// execute content hooks (AfterContentInit, AfterContentChecked)
// PERF WARNING: do NOT extract this to a separate function without running benchmarks
if (!isInCheckNoChangesPass) {
if (hooksInitPhaseCompleted) {
const contentCheckHooks = tView.contentCheckHooks;
if (contentCheckHooks !== null) {
executeCheckHooks(lView, contentCheckHooks);
}
}
else {
const contentHooks = tView.contentHooks;
if (contentHooks !== null) {
executeInitAndCheckHooks(lView, contentHooks, 1 /* InitPhaseState.AfterContentInitHooksToBeRun */);
}
incrementInitPhaseFlags(lView, 1 /* InitPhaseState.AfterContentInitHooksToBeRun */);
}
}
processHostBindingOpCodes(tView, lView);
// Refresh child component views.
const components = tView.components;
if (components !== null) {
detectChangesInChildComponents(lView, components, 0 /* ChangeDetectionMode.Global */);
}
// View queries must execute after refreshing child components because a template in this view
// could be inserted in a child component. If the view query executes before child component
// refresh, the template might not yet be inserted.
const viewQuery = tView.viewQuery;
if (viewQuery !== null) {
executeViewQueryFn(2 /* RenderFlags.Update */, viewQuery, context);
}
// execute view hooks (AfterViewInit, AfterViewChecked)
// PERF WARNING: do NOT extract this to a separate function without running benchmarks
if (!isInCheckNoChangesPass) {
if (hooksInitPhaseCompleted) {
const viewCheckHooks = tView.viewCheckHooks;
if (viewCheckHooks !== null) {
executeCheckHooks(lView, viewCheckHooks);
}
}
else {
const viewHooks = tView.viewHooks;
if (viewHooks !== null) {
executeInitAndCheckHooks(lView, viewHooks, 2 /* InitPhaseState.AfterViewInitHooksToBeRun */);
}
incrementInitPhaseFlags(lView, 2 /* InitPhaseState.AfterViewInitHooksToBeRun */);
}
}
if (tView.firstUpdatePass === true) {
// We need to make sure that we only flip the flag on successful `refreshView` only
// Don't do this in `finally` block.
// If we did this in `finally` block then an exception could block the execution of styling
// instructions which in turn would be unable to insert themselves into the styling linked
// list. The result of this would be that if the exception would not be throw on subsequent CD
// the styling would be unable to process it data and reflect to the DOM.
tView.firstUpdatePass = false;
}
// Schedule any effects that are waiting on the update pass of this view.
if (lView[EFFECTS_TO_SCHEDULE]) {
for (const notifyEffect of lView[EFFECTS_TO_SCHEDULE]) {
notifyEffect();
}
// Once they've been run, we can drop the array.
lView[EFFECTS_TO_SCHEDULE] = null;
}
// Do not reset the dirty state when running in check no changes mode. We don't want components
// to behave differently depending on whether check no changes is enabled or not. For example:
// Marking an OnPush component as dirty from within the `ngAfterViewInit` hook in order to
// refresh a `NgClass` binding should work. If we would reset the dirty state in the check
// no changes cycle, the component would be not be dirty for the next update pass. This would
// be different in production mode where the component dirty state is not reset.
if (!isInCheckNoChangesPass) {
lView[FLAGS] &= ~(64 /* LViewFlags.Dirty */ | 8 /* LViewFlags.FirstLViewPass */);
}
}
catch (e) {
// If refreshing a view causes an error, we need to remark the ancestors as needing traversal
// because the error might have caused a situation where views below the current location are
// dirty but will be unreachable because the "has dirty children" flag in the ancestors has been
// cleared during change detection and we failed to run to completion.
markAncestorsForTraversal(lView);
throw e;
}
finally {
if (currentConsumer !== null) {
consumerAfterComputation(currentConsumer, prevConsumer);
maybeReturnReactiveLViewConsumer(currentConsumer);
}
leaveView();
}
}
/**
* Indicates if the view should get its own reactive consumer node.
*
* In the current design, all embedded views share a consumer with the component view. This allows
* us to refresh at the component level rather than at a per-view level. In addition, root views get
* their own reactive node because root component will have a host view that executes the
* component's host bindings. This needs to be tracked in a consumer as well.
*
* To get a more granular change detection than per-component, all we would just need to update the
* condition here so that a given view gets a reactive consumer which can become dirty independently
* from its parent component. For example embedded views for signal components could be created with
* a new type "SignalEmbeddedView" and the condition here wouldn't even need updating in order to
* get granular per-view change detection for signal components.
*/
function viewShouldHaveReactiveConsumer(tView) {
return tView.type !== 2 /* TViewType.Embedded */;
}
/**
* Goes over embedded views (ones created through ViewContainerRef APIs) and refreshes
* them by executing an associated template function.
*/
function detectChangesInEmbeddedViews(lView, mode) {
for (let lContainer = getFirstLContainer(lView); lContainer !== null; lContainer = getNextLContainer(lContainer)) {
lContainer[HAS_CHILD_VIEWS_TO_REFRESH] = false;
for (let i = CONTAINER_HEADER_OFFSET; i < lContainer.length; i++) {
const embeddedLView = lContainer[i];
detectChangesInViewIfAttached(embeddedLView, mode);
}
}
}
/**
* Mark transplanted views as needing to be refreshed at their insertion points.
*
* @param lView The `LView` that may have transplanted views.
*/
function markTransplantedViewsForRefresh(lView) {
for (let lContainer = getFirstLContainer(lView); lContainer !== null; lContainer = getNextLContainer(lContainer)) {
if (!lContainer[HAS_TRANSPLANTED_VIEWS])
continue;
const movedViews = lContainer[MOVED_VIEWS];
ngDevMode && assertDefined(movedViews, 'Transplanted View flags set but missing MOVED_VIEWS');
for (let i = 0; i < movedViews.length; i++) {
const movedLView = movedViews[i];
const insertionLContainer = movedLView[PARENT];
ngDevMode && assertLContainer(insertionLContainer);
markViewForRefresh(movedLView);
}
}
}
/**
* Detects changes in a component by entering the component view and processing its bindings,
* queries, etc. if it is CheckAlways, OnPush and Dirty, etc.
*
* @param componentHostIdx Element index in LView[] (adjusted for HEADER_OFFSET)
*/
function detectChangesInComponent(hostLView, componentHostIdx, mode) {
ngDevMode && assertEqual(isCreationMode(hostLView), false, 'Should be run in update mode');
const componentView = getComponentLViewByIndex(componentHostIdx, hostLView);
detectChangesInViewIfAttached(componentView, mode);
}
/**
* Visits a view as part of change detection traversal.
*
* If the view is detached, no additional traversal happens.
*/
function detectChangesInViewIfAttached(lView, mode) {
if (!viewAttachedToChangeDetector(lView)) {
return;
}
detectChangesInView(lView, mode);
}
/**
* Visits a view as part of change detection traversal.
*
* The view is refreshed if:
* - If the view is CheckAlways or Dirty and ChangeDetectionMode is `Global`
* - If the view has the `RefreshTransplantedView` flag
*
* The view is not refreshed, but descendants are traversed in `ChangeDetectionMode.Targeted` if the
* view HasChildViewsToRefresh flag is set.
*/
function detectChangesInView(lView, mode) {
const isInCheckNoChangesPass = ngDevMode && isInCheckNoChangesMode();
const tView = lView[TVIEW];
const flags = lView[FLAGS];
const consumer = lView[REACTIVE_TEMPLATE_CONSUMER];
// Refresh CheckAlways views in Global mode.
let shouldRefreshView = !!(mode === 0 /* ChangeDetectionMode.Global */ && flags & 16 /* LViewFlags.CheckAlways */);
// Refresh Dirty views in Global mode, as long as we're not in checkNoChanges.
// CheckNoChanges never worked with `OnPush` components because the `Dirty` flag was
// cleared before checkNoChanges ran. Because there is now a loop for to check for
// backwards views, it gives an opportunity for `OnPush` components to be marked `Dirty`
// before the CheckNoChanges pass. We don't want existing errors that are hidden by the
// current CheckNoChanges bug to surface when making unrelated changes.
shouldRefreshView ||= !!(flags & 64 /* LViewFlags.Dirty */ && mode === 0 /* ChangeDetectionMode.Global */ && !isInCheckNoChangesPass);
// Always refresh views marked for refresh, regardless of mode.
shouldRefreshView ||= !!(flags & 1024 /* LViewFlags.RefreshView */);
// Refresh views when they have a dirty reactive consumer, regardless of mode.
shouldRefreshView ||= !!(consumer?.dirty && consumerPollProducersForChange(consumer));
// Mark the Flags and `ReactiveNode` as not dirty before refreshing the component, so that they
// can be re-dirtied during the refresh process.
if (consumer) {
consumer.dirty = false;
}
lView[FLAGS] &= ~(8192 /* LViewFlags.HasChildViewsToRefresh */ | 1024 /* LViewFlags.RefreshView */);
if (shouldRefreshView) {
refreshView(tView, lView, tView.template, lView[CONTEXT]);
}
else if (flags & 8192 /* LViewFlags.HasChildViewsToRefresh */) {
detectChangesInEmbeddedViews(lView, 1 /* ChangeDetectionMode.Targeted */);
const components = tView.components;
if (components !== null) {
detectChangesInChildComponents(lView, components, 1 /* ChangeDetectionMode.Targeted */);
}
}
}
/** Refreshes child components in the current view (update mode). */
function detectChangesInChildComponents(hostLView, components, mode) {
for (let i = 0; i < components.length; i++) {
detectChangesInComponent(hostLView, components[i], mode);
}
}
//# 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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {consumerAfterComputation, consumerBeforeComputation, consumerPollProducersForChange, ReactiveNode} from '@angular/core/primitives/signals';\n\nimport {RuntimeError, RuntimeErrorCode} from '../../errors';\nimport {assertDefined, assertEqual} from '../../util/assert';\nimport {assertLContainer} from '../assert';\nimport {getComponentViewByInstance} from '../context_discovery';\nimport {executeCheckHooks, executeInitAndCheckHooks, incrementInitPhaseFlags} from '../hooks';\nimport {CONTAINER_HEADER_OFFSET, HAS_CHILD_VIEWS_TO_REFRESH, HAS_TRANSPLANTED_VIEWS, LContainer, MOVED_VIEWS} from '../interfaces/container';\nimport {ComponentTemplate, RenderFlags} from '../interfaces/definition';\nimport {CONTEXT, EFFECTS_TO_SCHEDULE, ENVIRONMENT, FLAGS, InitPhaseState, LView, LViewFlags, PARENT, REACTIVE_TEMPLATE_CONSUMER, TVIEW, TView, TViewType} from '../interfaces/view';\nimport {getOrBorrowReactiveLViewConsumer, maybeReturnReactiveLViewConsumer, ReactiveLViewConsumer} from '../reactive_lview_consumer';\nimport {enterView, isInCheckNoChangesMode, leaveView, setBindingIndex, setIsInCheckNoChangesMode} from '../state';\nimport {getFirstLContainer, getNextLContainer} from '../util/view_traversal_utils';\nimport {getComponentLViewByIndex, isCreationMode, markAncestorsForTraversal, markViewForRefresh, resetPreOrderHookFlags, viewAttachedToChangeDetector} from '../util/view_utils';\n\nimport {executeTemplate, executeViewQueryFn, handleError, processHostBindingOpCodes, refreshContentQueries} from './shared';\n\n/**\n * The maximum number of times the change detection traversal will rerun before throwing an error.\n */\nconst MAXIMUM_REFRESH_RERUNS = 100;\n\nexport function detectChangesInternal<T>(\n    tView: TView, lView: LView, context: T, notifyErrorHandler = true) {\n  const environment = lView[ENVIRONMENT];\n  const rendererFactory = environment.rendererFactory;\n  const afterRenderEventManager = environment.afterRenderEventManager;\n\n  // Check no changes mode is a dev only mode used to verify that bindings have not changed\n  // since they were assigned. We do not want to invoke renderer factory functions in that mode\n  // to avoid any possible side-effects.\n  const checkNoChangesMode = !!ngDevMode && isInCheckNoChangesMode();\n\n  if (!checkNoChangesMode) {\n    rendererFactory.begin?.();\n    afterRenderEventManager?.begin();\n  }\n\n  try {\n    refreshView(tView, lView, tView.template, context);\n    let retries = 0;\n    // If after running change detection, this view still needs to be refreshed or there are\n    // descendants views that need to be refreshed due to re-dirtying during the change detection\n    // run, detect changes on the view again. We run change detection in `Targeted` mode to only\n    // refresh views with the `RefreshView` flag.\n    while (lView[FLAGS] & (LViewFlags.RefreshView | LViewFlags.HasChildViewsToRefresh) ||\n           lView[REACTIVE_TEMPLATE_CONSUMER]?.dirty) {\n      if (retries === MAXIMUM_REFRESH_RERUNS) {\n        throw new RuntimeError(\n            RuntimeErrorCode.INFINITE_CHANGE_DETECTION,\n            ngDevMode &&\n                'Infinite change detection while trying to refresh views. ' +\n                    'There may be components which each cause the other to require a refresh, ' +\n                    'causing an infinite loop.');\n      }\n      retries++;\n      // Even if this view is detached, we still detect changes in targeted mode because this was\n      // the root of the change detection run.\n      detectChangesInView(lView, ChangeDetectionMode.Targeted);\n    }\n  } catch (error) {\n    if (notifyErrorHandler) {\n      handleError(lView, error);\n    }\n    throw error;\n  } finally {\n    if (!checkNoChangesMode) {\n      rendererFactory.end?.();\n\n      // One final flush of the effects queue to catch any effects created in `ngAfterViewInit` or\n      // other post-order hooks.\n      environment.inlineEffectRunner?.flush();\n\n      // Invoke all callbacks registered via `after*Render`, if needed.\n      afterRenderEventManager?.end();\n    }\n  }\n}\n\nexport function checkNoChangesInternal<T>(\n    tView: TView, lView: LView, context: T, notifyErrorHandler = true) {\n  setIsInCheckNoChangesMode(true);\n  try {\n    detectChangesInternal(tView, lView, context, notifyErrorHandler);\n  } finally {\n    setIsInCheckNoChangesMode(false);\n  }\n}\n\n/**\n * Synchronously perform change detection on a component (and possibly its sub-components).\n *\n * This function triggers change detection in a synchronous way on a component.\n *\n * @param component The component which the change detection should be performed on.\n */\nexport function detectChanges(component: {}): void {\n  const view = getComponentViewByInstance(component);\n  detectChangesInternal(view[TVIEW], view, component);\n}\n\n/**\n * Different modes of traversing the logical view tree during change detection.\n *\n *\n * The change detection traversal algorithm switches between these modes based on various\n * conditions.\n */\nconst enum ChangeDetectionMode {\n  /**\n   * In `Global` mode, `Dirty` and `CheckAlways` views are refreshed as well as views with the\n   * `RefreshTransplantedView` flag.\n   */\n  Global,\n  /**\n   * In `Targeted` mode, only views with the `RefreshTransplantedView`\n   * flag are refreshed.\n   */\n  Targeted,\n}\n\n/**\n * Processes a view in update mode. This includes a number of steps in a specific order:\n * - executing a template function in update mode;\n * - executing hooks;\n * - refreshing queries;\n * - setting host bindings;\n * - refreshing child (embedded and component) views.\n */\n\nexport function refreshView<T>(\n    tView: TView, lView: LView, templateFn: ComponentTemplate<{}>|null, context: T) {\n  ngDevMode && assertEqual(isCreationMode(lView), false, 'Should be run in update mode');\n  const flags = lView[FLAGS];\n  if ((flags & LViewFlags.Destroyed) === LViewFlags.Destroyed) return;\n\n  // Check no changes mode is a dev only mode used to verify that bindings have not changed\n  // since they were assigned. We do not want to execute lifecycle hooks in that mode.\n  const isInCheckNoChangesPass = ngDevMode && isInCheckNoChangesMode();\n\n  !isInCheckNoChangesPass && lView[ENVIRONMENT].inlineEffectRunner?.flush();\n\n\n  // Start component reactive context\n  // - We might already be in a reactive context if this is an embedded view of the host.\n  // - We might be descending into a view that needs a consumer.\n  enterView(lView);\n  let prevConsumer: ReactiveNode|null = null;\n  let currentConsumer: ReactiveLViewConsumer|null = null;\n  if (!isInCheckNoChangesPass && viewShouldHaveReactiveConsumer(tView)) {\n    currentConsumer = getOrBorrowReactiveLViewConsumer(lView);\n    prevConsumer = consumerBeforeComputation(currentConsumer);\n  }\n\n  try {\n    resetPreOrderHookFlags(lView);\n\n    setBindingIndex(tView.bindingStartIndex);\n    if (templateFn !== null) {\n      executeTemplate(tView, lView, templateFn, RenderFlags.Update, context);\n    }\n\n    const hooksInitPhaseCompleted =\n        (flags & LViewFlags.InitPhaseStateMask) === InitPhaseState.InitPhaseCompleted;\n\n    // execute pre-order hooks (OnInit, OnChanges, DoCheck)\n    // PERF WARNING: do NOT extract this to a separate function without running benchmarks\n    if (!isInCheckNoChangesPass) {\n      if (hooksInitPhaseCompleted) {\n        const preOrderCheckHooks = tView.preOrderCheckHooks;\n        if (preOrderCheckHooks !== null) {\n          executeCheckHooks(lView, preOrderCheckHooks, null);\n        }\n      } else {\n        const preOrderHooks = tView.preOrderHooks;\n        if (preOrderHooks !== null) {\n          executeInitAndCheckHooks(lView, preOrderHooks, InitPhaseState.OnInitHooksToBeRun, null);\n        }\n        incrementInitPhaseFlags(lView, InitPhaseState.OnInitHooksToBeRun);\n      }\n    }\n\n    // First mark transplanted views that are declared in this lView as needing a refresh at their\n    // insertion points. This is needed to avoid the situation where the template is defined in this\n    // `LView` but its declaration appears after the insertion component.\n    markTransplantedViewsForRefresh(lView);\n    detectChangesInEmbeddedViews(lView, ChangeDetectionMode.Global);\n\n    // Content query results must be refreshed before content hooks are called.\n    if (tView.contentQueries !== null) {\n      refreshContentQueries(tView, lView);\n    }\n\n    // execute content hooks (AfterContentInit, AfterContentChecked)\n    // PERF WARNING: do NOT extract this to a separate function without running benchmarks\n    if (!isInCheckNoChangesPass) {\n      if (hooksInitPhaseCompleted) {\n        const contentCheckHooks = tView.contentCheckHooks;\n        if (contentCheckHooks !== null) {\n          executeCheckHooks(lView, contentCheckHooks);\n        }\n      } else {\n        const contentHooks = tView.contentHooks;\n        if (contentHooks !== null) {\n          executeInitAndCheckHooks(\n              lView, contentHooks, InitPhaseState.AfterContentInitHooksToBeRun);\n        }\n        incrementInitPhaseFlags(lView, InitPhaseState.AfterContentInitHooksToBeRun);\n      }\n    }\n\n    processHostBindingOpCodes(tView, lView);\n\n    // Refresh child component views.\n    const components = tView.components;\n    if (components !== null) {\n      detectChangesInChildComponents(lView, components, ChangeDetectionMode.Global);\n    }\n\n    // View queries must execute after refreshing child components because a template in this view\n    // could be inserted in a child component. If the view query executes before child component\n    // refresh, the template might not yet be inserted.\n    const viewQuery = tView.viewQuery;\n    if (viewQuery !== null) {\n      executeViewQueryFn<T>(RenderFlags.Update, viewQuery, context);\n    }\n\n    // execute view hooks (AfterViewInit, AfterViewChecked)\n    // PERF WARNING: do NOT extract this to a separate function without running benchmarks\n    if (!isInCheckNoChangesPass) {\n      if (hooksInitPhaseCompleted) {\n        const viewCheckHooks = tView.viewCheckHooks;\n        if (viewCheckHooks !== null) {\n          executeCheckHooks(lView, viewCheckHooks);\n        }\n      } else {\n        const viewHooks = tView.viewHooks;\n        if (viewHooks !== null) {\n          executeInitAndCheckHooks(lView, viewHooks, InitPhaseState.AfterViewInitHooksToBeRun);\n        }\n        incrementInitPhaseFlags(lView, InitPhaseState.AfterViewInitHooksToBeRun);\n      }\n    }\n    if (tView.firstUpdatePass === true) {\n      // We need to make sure that we only flip the flag on successful `refreshView` only\n      // Don't do this in `finally` block.\n      // If we did this in `finally` block then an exception could block the execution of styling\n      // instructions which in turn would be unable to insert themselves into the styling linked\n      // list. The result of this would be that if the exception would not be throw on subsequent CD\n      // the styling would be unable to process it data and reflect to the DOM.\n      tView.firstUpdatePass = false;\n    }\n\n    // Schedule any effects that are waiting on the update pass of this view.\n    if (lView[EFFECTS_TO_SCHEDULE]) {\n      for (const notifyEffect of lView[EFFECTS_TO_SCHEDULE]) {\n        notifyEffect();\n      }\n\n      // Once they've been run, we can drop the array.\n      lView[EFFECTS_TO_SCHEDULE] = null;\n    }\n\n    // Do not reset the dirty state when running in check no changes mode. We don't want components\n    // to behave differently depending on whether check no changes is enabled or not. For example:\n    // Marking an OnPush component as dirty from within the `ngAfterViewInit` hook in order to\n    // refresh a `NgClass` binding should work. If we would reset the dirty state in the check\n    // no changes cycle, the component would be not be dirty for the next update pass. This would\n    // be different in production mode where the component dirty state is not reset.\n    if (!isInCheckNoChangesPass) {\n      lView[FLAGS] &= ~(LViewFlags.Dirty | LViewFlags.FirstLViewPass);\n    }\n  } catch (e) {\n    // If refreshing a view causes an error, we need to remark the ancestors as needing traversal\n    // because the error might have caused a situation where views below the current location are\n    // dirty but will be unreachable because the \"has dirty children\" flag in the ancestors has been\n    // cleared during change detection and we failed to run to completion.\n\n    markAncestorsForTraversal(lView);\n    throw e;\n  } finally {\n    if (currentConsumer !== null) {\n      consumerAfterComputation(currentConsumer, prevConsumer);\n      maybeReturnReactiveLViewConsumer(currentConsumer);\n    }\n    leaveView();\n  }\n}\n\n/**\n * Indicates if the view should get its own reactive consumer node.\n *\n * In the current design, all embedded views share a consumer with the component view. This allows\n * us to refresh at the component level rather than at a per-view level. In addition, root views get\n * their own reactive node because root component will have a host view that executes the\n * component's host bindings. This needs to be tracked in a consumer as well.\n *\n * To get a more granular change detection than per-component, all we would just need to update the\n * condition here so that a given view gets a reactive consumer which can become dirty independently\n * from its parent component. For example embedded views for signal components could be created with\n * a new type \"SignalEmbeddedView\" and the condition here wouldn't even need updating in order to\n * get granular per-view change detection for signal components.\n */\nfunction viewShouldHaveReactiveConsumer(tView: TView) {\n  return tView.type !== TViewType.Embe