refactor(core): rename internal DI token that indicates whether hydration is enabled (#49800)

This commit renames an internal token to better align it with the naming of the function (to highlight the fact that it's responsible for DOM part of the hydration).

PR Close #49800

packages/core/src/core_private_export.ts

@@ -18,7 +18,7 @@ export {XSS_SECURITY_URL as ɵXSS_SECURITY_URL} from './error_details_base_url';
 export {formatRuntimeError as ɵformatRuntimeError, RuntimeError as ɵRuntimeError} from './errors';
 export {annotateForHydration as ɵannotateForHydration} from './hydration/annotate';
 export {withDomHydration as ɵwithDomHydration} from './hydration/api';
-export {IS_HYDRATION_FEATURE_ENABLED as ɵIS_HYDRATION_FEATURE_ENABLED} from './hydration/tokens';
+export {IS_HYDRATION_DOM_REUSE_ENABLED as ɵIS_HYDRATION_DOM_REUSE_ENABLED} from './hydration/tokens';
 export {CurrencyIndex as ɵCurrencyIndex, ExtraLocaleDataIndex as ɵExtraLocaleDataIndex, findLocaleData as ɵfindLocaleData, getLocaleCurrencyCode as ɵgetLocaleCurrencyCode, getLocalePluralCase as ɵgetLocalePluralCase, LocaleDataIndex as ɵLocaleDataIndex, registerLocaleData as ɵregisterLocaleData, unregisterAllLocaleData as ɵunregisterLocaleData} from './i18n/locale_data_api';
 export {DEFAULT_LOCALE_ID as ɵDEFAULT_LOCALE_ID} from './i18n/localization';
 export {InitialRenderPendingTasks as ɵInitialRenderPendingTasks} from './initial_render_pending_tasks';

packages/core/src/hydration/api.ts

@@ -24,7 +24,7 @@ import {enableLocateOrCreateTextNodeImpl} from '../render3/instructions/text';
 import {TransferState} from '../transfer_state';
 
 import {cleanupDehydratedViews} from './cleanup';
-import {IS_HYDRATION_FEATURE_ENABLED, PRESERVE_HOST_CONTENT} from './tokens';
+import {IS_HYDRATION_DOM_REUSE_ENABLED, PRESERVE_HOST_CONTENT} from './tokens';
 import {enableRetrieveHydrationInfoImpl, NGH_DATA_KEY} from './utils';
 import {enableFindMatchingDehydratedViewImpl} from './views';
 
@@ -107,7 +107,7 @@ function whenStable(
 export function withDomHydration(): EnvironmentProviders {
   return makeEnvironmentProviders([
     {
-      provide: IS_HYDRATION_FEATURE_ENABLED,
+      provide: IS_HYDRATION_DOM_REUSE_ENABLED,
       useFactory: () => {
         let isEnabled = true;
         if (isBrowser()) {
@@ -142,7 +142,7 @@ export function withDomHydration(): EnvironmentProviders {
         // on the client. Moving forward, the `isBrowser` check should
         // be replaced with a tree-shakable alternative (e.g. `isServer`
         // flag).
-        if (isBrowser() && inject(IS_HYDRATION_FEATURE_ENABLED)) {
+        if (isBrowser() && inject(IS_HYDRATION_DOM_REUSE_ENABLED)) {
           enableHydrationRuntimeSupport();
         }
       },
@@ -155,13 +155,13 @@ export function withDomHydration(): EnvironmentProviders {
         // environment and when hydration is configured properly.
         // On a server, an application is rendered from scratch,
         // so the host content needs to be empty.
-        return isBrowser() && inject(IS_HYDRATION_FEATURE_ENABLED);
+        return isBrowser() && inject(IS_HYDRATION_DOM_REUSE_ENABLED);
       }
     },
     {
       provide: APP_BOOTSTRAP_LISTENER,
       useFactory: () => {
-        if (isBrowser() && inject(IS_HYDRATION_FEATURE_ENABLED)) {
+        if (isBrowser() && inject(IS_HYDRATION_DOM_REUSE_ENABLED)) {
           const appRef = inject(ApplicationRef);
           const pendingTasks = inject(InitialRenderPendingTasks);
           const injector = inject(Injector);

packages/core/src/hydration/tokens.ts

@@ -11,10 +11,11 @@ import {InjectionToken} from '../di/injection_token';
 const NG_DEV_MODE = typeof ngDevMode === 'undefined' || !!ngDevMode;
 
 /**
- * Internal token that specifies whether hydration is enabled.
+ * Internal token that specifies whether DOM reuse logic
+ * during hydration is enabled.
  */
-export const IS_HYDRATION_FEATURE_ENABLED =
-    new InjectionToken<boolean>(NG_DEV_MODE ? 'IS_HYDRATION_FEATURE_ENABLED' : '');
+export const IS_HYDRATION_DOM_REUSE_ENABLED =
+    new InjectionToken<boolean>(NG_DEV_MODE ? 'IS_HYDRATION_DOM_REUSE_ENABLED' : '');
 
 // By default (in client rendering mode), we remove all the contents
 // of the host element and render an application after that.

packages/platform-server/src/utils.ts

@@ -6,7 +6,7 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {ApplicationRef, InjectionToken, NgModuleRef, PlatformRef, Provider, Renderer2, StaticProvider, Type, ɵannotateForHydration as annotateForHydration, ɵENABLED_SSR_FEATURES as ENABLED_SSR_FEATURES, ɵInitialRenderPendingTasks as InitialRenderPendingTasks, ɵIS_HYDRATION_FEATURE_ENABLED as IS_HYDRATION_FEATURE_ENABLED, ɵisPromise} from '@angular/core';
+import {ApplicationRef, InjectionToken, NgModuleRef, PlatformRef, Provider, Renderer2, StaticProvider, Type, ɵannotateForHydration as annotateForHydration, ɵENABLED_SSR_FEATURES as ENABLED_SSR_FEATURES, ɵInitialRenderPendingTasks as InitialRenderPendingTasks, ɵIS_HYDRATION_DOM_REUSE_ENABLED as IS_HYDRATION_DOM_REUSE_ENABLED, ɵisPromise} from '@angular/core';
 import {first} from 'rxjs/operators';
 
 import {PlatformState} from './platform_state';
@@ -67,7 +67,7 @@ function _render<T>(
 
       const asyncPromises: Promise<any>[] = [];
 
-      if (applicationRef.injector.get(IS_HYDRATION_FEATURE_ENABLED, false)) {
+      if (applicationRef.injector.get(IS_HYDRATION_DOM_REUSE_ENABLED, false)) {
         annotateForHydration(applicationRef, platformState.getDocument());
       }