Support TypeScript's explicit "auto" `quotePreference`

Fixes #68185

extensions/package.json

@@ -3,7 +3,7 @@
   "version": "0.0.1",
   "description": "Dependencies shared by all extensions",
   "dependencies": {
-    "typescript": "3.3.1"
+    "typescript": "3.3.3"
   },
   "scripts": {
     "postinstall": "node ./postinstall"

extensions/typescript-language-features/src/features/fileConfigurationManager.ts

@@ -178,20 +178,20 @@ export default class FileConfigurationManager extends Disposable {
 			document.uri);
 
 		return {
-			quotePreference: getQuoteStylePreference(preferences),
+			quotePreference: this.getQuoteStylePreference(preferences),
 			importModuleSpecifierPreference: getImportModuleSpecifierPreference(preferences),
 			allowTextChangesInNewFiles: document.uri.scheme === 'file',
 			providePrefixAndSuffixTextForRename: true,
 			allowRenameOfImportPath: true,
 		};
 	}
-}
 
-function getQuoteStylePreference(config: vscode.WorkspaceConfiguration) {
+	private getQuoteStylePreference(config: vscode.WorkspaceConfiguration) {
 		switch (config.get<string>('quoteStyle')) {
 			case 'single': return 'single';
 			case 'double': return 'double';
-		default: return undefined;
+			default: return this.client.apiVersion.gte(API.v333) ? 'auto' : undefined;
+		}
 	}
 }
 

extensions/typescript-language-features/src/utils/api.ts

@@ -34,6 +34,7 @@ export default class API {
 	public static readonly v314 = API.fromSimpleString('3.1.4');
 	public static readonly v320 = API.fromSimpleString('3.2.0');
 	public static readonly v330 = API.fromSimpleString('3.3.0');
+	public static readonly v333 = API.fromSimpleString('3.3.3');
 
 
 	public static fromVersionString(versionString: string): API {

extensions/yarn.lock

@@ -2,7 +2,7 @@
 # yarn lockfile v1
 
 
-typescript@3.3.1:
-  version "3.3.1"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.3.1.tgz#6de14e1db4b8a006ac535e482c8ba018c55f750b"
-  integrity sha512-cTmIDFW7O0IHbn1DPYjkiebHxwtCMU+eTy30ZtJNBPF9j2O1ITu5XH2YnBeVRKWHqF+3JQwWJv0Q0aUgX8W7IA==
+typescript@3.3.3:
+  version "3.3.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.3.3.tgz#f1657fc7daa27e1a8930758ace9ae8da31403221"
+  integrity sha512-Y21Xqe54TBVp+VDSNbuDYdGw0BpoR/Q6wo/+35M8PAU0vipahnyduJWirxxdxjsAkS7hue53x2zp8gz7F05u0A==