Fixes #61912: Account for the fact that modes can be instantiated before all...

Fixes #61912: Account for the fact that modes can be instantiated before all extension points have been handled.

src/vs/workbench/parts/codeEditor/electron-browser/languageConfiguration/languageConfigurationExtensionPoint.ts

@@ -15,6 +15,7 @@ import { IModeService } from 'vs/editor/common/services/modeService';
 import { IFileService } from 'vs/platform/files/common/files';
 import { Extensions, IJSONContributionRegistry } from 'vs/platform/jsonschemas/common/jsonContributionRegistry';
 import { Registry } from 'vs/platform/registry/common/platform';
+import { IExtensionService } from 'vs/workbench/services/extensions/common/extensions';
 import { ITextMateService } from 'vs/workbench/services/textMate/electron-browser/textMateService';
 
 interface IRegExp {
@@ -67,12 +68,19 @@ export class LanguageConfigurationFileHandler {
 	constructor(
 		@ITextMateService textMateService: ITextMateService,
 		@IModeService private readonly _modeService: IModeService,
-		@IFileService private readonly _fileService: IFileService
+		@IFileService private readonly _fileService: IFileService,
+		@IExtensionService private readonly _extensionService: IExtensionService
 	) {
 		this._done = [];
 
 		// Listen for hints that a language configuration is needed/usefull and then load it once
-		this._modeService.onDidCreateMode((mode) => this._loadConfigurationsForMode(mode.getLanguageIdentifier()));
+		this._modeService.onDidCreateMode((mode) => {
+			const languageIdentifier = mode.getLanguageIdentifier();
+			// Modes can be instantiated before the extension points have finished registering
+			this._extensionService.whenInstalledExtensionsRegistered().then(() => {
+				this._loadConfigurationsForMode(languageIdentifier);
+			});
+		});
 		textMateService.onDidEncounterLanguage((languageId) => {
 			this._loadConfigurationsForMode(this._modeService.getLanguageIdentifier(languageId));
 		});

src/vs/workbench/services/textMate/electron-browser/TMSyntax.ts

@@ -20,6 +20,7 @@ import { IModeService } from 'vs/editor/common/services/modeService';
 import { IFileService } from 'vs/platform/files/common/files';
 import { ILogService } from 'vs/platform/log/common/log';
 import { INotificationService } from 'vs/platform/notification/common/notification';
+import { IExtensionService } from 'vs/workbench/services/extensions/common/extensions';
 import { ExtensionMessageCollector } from 'vs/workbench/services/extensions/common/extensionsRegistry';
 import { IEmbeddedLanguagesMap, ITMSyntaxExtensionPoint, TokenTypesContribution, grammarsExtPoint } from 'vs/workbench/services/textMate/electron-browser/TMGrammars';
 import { ITextMateService } from 'vs/workbench/services/textMate/electron-browser/textMateService';
@@ -157,7 +158,8 @@ export class TextMateService implements ITextMateService {
 		@IWorkbenchThemeService themeService: IWorkbenchThemeService,
 		@IFileService fileService: IFileService,
 		@INotificationService notificationService: INotificationService,
-		@ILogService logService: ILogService
+		@ILogService logService: ILogService,
+		@IExtensionService extensionService: IExtensionService
 	) {
 		this._styleElement = dom.createStyleSheet();
 		this._styleElement.className = 'vscode-tokens-styles';
@@ -202,9 +204,12 @@ export class TextMateService implements ITextMateService {
 
 		this._modeService.onDidCreateMode((mode) => {
 			let modeId = mode.getId();
-			if (this._languageToScope.has(modeId)) {
-				this.registerDefinition(modeId);
-			}
+			// Modes can be instantiated before the extension points have finished registering
+			extensionService.whenInstalledExtensionsRegistered().then(() => {
+				if (this._languageToScope.has(modeId)) {
+					this.registerDefinition(modeId);
+				}
+			});
 		});
 	}