+++
repository_url = "git@github.com:tree-sitter/tree-sitter"
revision = "24007727d42b4caceda3095ac685c463fae1ba1a"
+++

## Edit History

```diff
--- a/tree-sitter/crates/loader/src/loader.rs
+++ b/tree-sitter/crates/loader/src/loader.rs
@@ -604,7 +604,7 @@

 pub struct Loader {
     pub parser_lib_path: PathBuf,
-    languages_by_id: Vec<(PathBuf, OnceCell<Language>, Option<Vec<PathBuf>>)>,
+    languages_by_id: Vec<LanguageEntry>,
     language_configurations: Vec<LanguageConfiguration<'static>>,
     language_configuration_ids_by_file_type: HashMap<String, Vec<usize>>,
     language_configuration_in_current_path: Option<usize>,
@@ -619,6 +619,12 @@

     #[cfg(feature = "wasm")]
     wasm_store: Mutex<Option<tree_sitter::WasmStore>>,
+}
+
+struct LanguageEntry {
+    path: PathBuf,
+    language: OnceCell<Language>,
+    external_files: Option<Vec<PathBuf>>,
 }

 pub struct CompileConfig<'a> {
@@ -767,7 +773,7 @@
     pub fn get_all_language_configurations(&self) -> Vec<(&LanguageConfiguration, &Path)> {
         self.language_configurations
             .iter()
-            .map(|c| (c, self.languages_by_id[c.language_id].0.as_ref()))
+            .map(|c| (c, self.languages_by_id[c.language_id].path.as_ref()))
             .collect()
     }

@@ -920,13 +926,17 @@
     }

     fn language_for_id(&self, id: usize) -> LoaderResult<Language> {
-        let (path, language, externals) = &self.languages_by_id[id];
+        let LanguageEntry {
+            path,
+            language,
+            external_files,
+        } = &self.languages_by_id[id];
         language
             .get_or_try_init(|| {
                 let src_path = path.join("src");
                 self.load_language_at_path(CompileConfig::new(
                     &src_path,
-                    externals.as_deref(),
+                    external_files.as_deref(),
                     None,
                 ))
             })
@@ -1532,10 +1542,9 @@
                     // Determine if a previous language configuration in this package.json file
                     // already uses the same language.
                     let mut language_id = None;
-                    for (id, (path, _, _)) in
-                        self.languages_by_id.iter().enumerate().skip(language_count)
+                    for (id, entry) in self.languages_by_id.iter().enumerate().skip(language_count)
                     {
-                        if language_path == *path {
+                        if language_path == entry.path {
                             language_id = Some(id);
                         }
                     }
--- a/tree-sitter/crates/loader/src/loader.rs
+++ b/tree-sitter/crates/loader/src/loader.rs
@@ -1553,10 +1553,10 @@
                     let language_id = if let Some(language_id) = language_id {
                         language_id
                     } else {
-                        self.languages_by_id.push((
-                            language_path,
-                            OnceCell::new(),
-                            grammar
+                        self.languages_by_id.push(LanguageEntry {
+                            path: language_path,
+                            language: OnceCell::new(),
+                            external_files: grammar
                                 .external_files
                                 .clone()
                                 .into_vec()
```

## Cursor Position

```tree-sitter/crates/loader/src/loader.rs
                    let language_id = if let Some(language_id) = language_id {
                        language_id
                    } else {
                        self.languages_by_id.push(LanguageEntry {
                            path: language_path,
                            language: OnceCell::new(),
                            external_files: grammar
                                .external_files
                                .clone()
                                .into_vec()
                                .map(|files| {
                                    files
                                        .into_iter()
                                        .map(|path| {
                                            let path = parser_path.join(path);
                                            // prevent p being above/outside of parser_path
                                            if path.starts_with(parser_path) {
                                                Ok(path)
                                            } else {
                                                Err(LoaderError::ExternalFile(
                                                    path.to_string_lossy().to_string(),
                                                    parser_path.to_string_lossy().to_string(),
                                                ))
                                            }
                                        })
                                        .collect::<LoaderResult<Vec<_>>>()
                                })
                                .transpose()?,
                                //            ^[CURSOR_POSITION]
                        ));
                        self.languages_by_id.len() - 1
                    };
```

## Expected Patch

```diff
--- a/tree-sitter/crates/loader/src/loader.rs
+++ b/tree-sitter/crates/loader/src/loader.rs
@@ -1578,7 +1578,7 @@
                                         .collect::<LoaderResult<Vec<_>>>()
                                 })
                                 .transpose()?,
-                        ));
+                        });
                         self.languages_by_id.len() - 1
                     };
```