extension: fix stdin-filepath for non-file documents

Author: JohnnyMorganz

stylua-vscode/CHANGELOG.md

@@ -11,6 +11,10 @@ To view the changelog of the StyLua binary, see [here](https://github.com/Johnny
 
 ## [Unreleased]
 
+### Fixed
+
+- Skip `--stdin-filepath` when handling non-file based text documents (e.g., untitled documents)
+
 ## [1.7.0] - 2024-11-16
 
 ### Changed

stylua-vscode/src/extension.ts

@@ -248,7 +248,7 @@ export async function activate(context: vscode.ExtensionContext) {
             outputChannel,
             styluaBinaryPath.path,
             text,
-            document.uri.fsPath,
+            document.uri.scheme === "file" ? document.uri.fsPath : undefined,
             cwd,
             byteOffset(document, range.start),
             byteOffset(document, range.end)