Avoid fs check on notebook cell uri (#238732)

src/vs/workbench/contrib/chat/browser/chatEditing/chatEditingService.ts

@@ -13,6 +13,7 @@ import { Iterable } from '../../../../../base/common/iterator.js';
 import { Disposable, DisposableStore, IDisposable, toDisposable } from '../../../../../base/common/lifecycle.js';
 import { LinkedList } from '../../../../../base/common/linkedList.js';
 import { ResourceMap } from '../../../../../base/common/map.js';
+import { Schemas } from '../../../../../base/common/network.js';
 import { derived, IObservable, observableValue, observableValueOpts, runOnChange, ValueWithChangeEventFromObservable } from '../../../../../base/common/observable.js';
 import { compare } from '../../../../../base/common/strings.js';
 import { ThemeIcon } from '../../../../../base/common/themables.js';
@@ -35,6 +36,7 @@ import { IEditorService } from '../../../../services/editor/common/editorService
 import { IExtensionService } from '../../../../services/extensions/common/extensions.js';
 import { ILifecycleService } from '../../../../services/lifecycle/common/lifecycle.js';
 import { IMultiDiffSourceResolver, IMultiDiffSourceResolverService, IResolvedMultiDiffSource, MultiDiffEditorItem } from '../../../multiDiffEditor/browser/multiDiffSourceResolverService.js';
+import { CellUri } from '../../../notebook/common/notebookCommon.js';
 import { ChatAgentLocation, IChatAgentService } from '../../common/chatAgents.js';
 import { ChatContextKeys } from '../../common/chatContextKeys.js';
 import { applyingChatEditsContextKey, applyingChatEditsFailedContextKey, CHAT_EDITING_MULTI_DIFF_SOURCE_RESOLVER_SCHEME, chatEditingAgentSupportsReadonlyReferencesContextKey, chatEditingMaxFileAssignmentName, chatEditingResourceContextKey, ChatEditingSessionState, decidedChatEditingResourceContextKey, defaultChatEditingMaxFileLimit, hasAppliedChatEditsContextKey, hasUndecidedChatEditingResourceContextKey, IChatEditingService, IChatEditingSession, IChatEditingSessionStream, IChatRelatedFile, IChatRelatedFilesProvider, IModifiedFileEntry, inChatEditingSessionContextKey, WorkingSetEntryState } from '../../common/chatEditingService.js';
@@ -316,9 +318,10 @@ export class ChatEditingService extends Disposable implements IChatEditingServic
 				if (part.kind === 'codeblockUri' || part.kind === 'textEditGroup') {
 					// ensure editor is open asap
 					if (!editedFilesExist.get(part.uri)) {
-						editedFilesExist.set(part.uri, this._fileService.exists(part.uri).then((e) => {
+						const uri = part.uri.scheme === Schemas.vscodeNotebookCell ? CellUri.parse(part.uri)?.notebook ?? part.uri : part.uri;
+						editedFilesExist.set(part.uri, this._fileService.exists(uri).then((e) => {
 							if (e) {
-								this._editorService.openEditor({ resource: part.uri, options: { inactive: true, preserveFocus: true, pinned: true } });
+								this._editorService.openEditor({ resource: uri, options: { inactive: true, preserveFocus: true, pinned: true } });
 							}
 							return e;
 						}));