Fixes missing service dependency

Author: hediet

src/vs/editor/standalone/browser/standaloneServices.ts

@@ -100,7 +100,7 @@ import { ResourceMap } from '../../../base/common/map.js';
 import { IWebWorkerDescriptor } from '../../../base/browser/webWorkerFactory.js';
 import { ITreeSitterLibraryService } from '../../common/services/treeSitter/treeSitterLibraryService.js';
 import { StandaloneTreeSitterLibraryService } from './standaloneTreeSitterLibraryService.js';
-import { CoreDataChannel, IDataChannelEvent, IDataChannelService } from '../../../platform/dataChannel/common/dataChannel.js';
+import { IDataChannelService, NullDataChannelService } from '../../../platform/dataChannel/common/dataChannel.js';
 
 class SimpleModel implements IResolvedTextEditorModel {
 
@@ -1127,18 +1127,6 @@ class StandaloneAccessbilitySignalService implements IAccessibilitySignalService
 	}
 }
 
-class StandaloneDataChannelService implements IDataChannelService {
-	_serviceBrand: undefined;
-	get onDidSendData(): Event<IDataChannelEvent<unknown>> {
-		return Event.None;
-	}
-	getDataChannel<T>(_channelId: string): CoreDataChannel<T> {
-		return {
-			sendData: () => { },
-		};
-	}
-}
-
 export interface IEditorOverrideServices {
 	[index: string]: any;
 }
@@ -1180,7 +1168,7 @@ registerSingleton(IMenuService, MenuService, InstantiationType.Eager);
 registerSingleton(IAccessibilitySignalService, StandaloneAccessbilitySignalService, InstantiationType.Eager);
 registerSingleton(ITreeSitterLibraryService, StandaloneTreeSitterLibraryService, InstantiationType.Eager);
 registerSingleton(ILoggerService, NullLoggerService, InstantiationType.Eager);
-registerSingleton(IDataChannelService, StandaloneDataChannelService, InstantiationType.Eager);
+registerSingleton(IDataChannelService, NullDataChannelService, InstantiationType.Eager);
 
 /**
  * We don't want to eagerly instantiate services because embedders get a one time chance

src/vs/editor/test/browser/testCodeEditor.ts

@@ -63,6 +63,7 @@ import { ITreeSitterLibraryService } from '../../common/services/treeSitter/tree
 import { TestTreeSitterLibraryService } from '../common/services/testTreeSitterLibraryService.js';
 import { IInlineCompletionsService, InlineCompletionsService } from '../../browser/services/inlineCompletionsService.js';
 import { EditorCommand } from '../../browser/editorExtensions.js';
+import { IDataChannelService, NullDataChannelService } from '../../../platform/dataChannel/common/dataChannel.js';
 
 export interface ITestCodeEditor extends IActiveCodeEditor {
 	getViewModel(): ViewModel | undefined;
@@ -236,6 +237,7 @@ export function createCodeEditorServices(disposables: Pick<DisposableStore, 'add
 	define(ICommandService, TestCommandService);
 	define(ITelemetryService, NullTelemetryServiceShape);
 	define(ILoggerService, NullLoggerService);
+	define(IDataChannelService, NullDataChannelService);
 	define(IEnvironmentService, class extends mock<IEnvironmentService>() {
 		declare readonly _serviceBrand: undefined;
 		override isBuilt: boolean = true;

src/vs/platform/dataChannel/common/dataChannel.ts

@@ -24,3 +24,15 @@ export interface IDataChannelEvent<T = unknown> {
 	channelId: string;
 	data: T;
 }
+
+export class NullDataChannelService implements IDataChannelService {
+	_serviceBrand: undefined;
+	get onDidSendData(): Event<IDataChannelEvent<unknown>> {
+		return Event.None;
+	}
+	getDataChannel<T>(_channelId: string): CoreDataChannel<T> {
+		return {
+			sendData: () => { },
+		};
+	}
+}