use LanguageFeaturesService to support MappedEditsProviders instead of creating a new MappedEditsService

src/vs/workbench/api/browser/mainThreadLanguageFeatures.ts

@@ -931,6 +931,13 @@ export class MainThreadLanguageFeatures extends Disposable implements MainThread
 		}
 		return provider.resolveDocumentOnDropFileData(requestId, dataId);
 	}
+
+	// --- mapped edits
+
+	$registerMappedEditsProvider(handle: number, selector: IDocumentFilterDto[]): void {
+		const provider = new MainThreadMappedEditsProvider(handle, this._proxy, this._uriIdentService);
+		this._registrations.set(handle, this._languageFeaturesService.mappedEditsProvider.register(selector, provider));
+	}
 }
 
 class MainThreadPasteEditProvider implements languages.DocumentPasteEditProvider {
@@ -1124,3 +1131,17 @@ export class MainThreadDocumentRangeSemanticTokensProvider implements languages.
 		throw new Error(`Unexpected`);
 	}
 }
+
+export class MainThreadMappedEditsProvider implements languages.MappedEditsProvider {
+
+	constructor(
+		private readonly _handle: number,
+		private readonly _proxy: ExtHostLanguageFeaturesShape,
+		private readonly _uriService: IUriIdentityService,
+	) { }
+
+	async provideMappedEdits(document: ITextModel, codeBlocks: string[], context: languages.MappedEditsContext, token: CancellationToken): Promise<languages.WorkspaceEdit | null> {
+		const res = await this._proxy.$provideMappedEdits(this._handle, document.uri, codeBlocks, context, token);
+		return res ? reviveWorkspaceEditDto(res, this._uriService) : null;
+	}
+}