feat: add fts indexing

indexer/scope.go

@@ -21,14 +21,16 @@ var packageQueries = map[string]string{
 	"erlang":   `(module_attribute name: (atom) @name)`,
 }
 
-// ExtractPackage extracts the package/module name from source code.
+// ExtractPackage extracts the package/module name from a pre-parsed tree.
 // Falls back to deriving from the file path if no language-specific query exists
 // or the query finds no match.
-func ExtractPackage(src []byte, filePath string, entry *grammars.LangEntry) string {
+func ExtractPackage(src []byte, filePath string, entry *grammars.LangEntry, tree *gotreesitter.Tree) string {
 	if queryStr, ok := packageQueries[entry.Name]; ok {
-		lang := entry.Language()
-		if pkg := runPackageQuery(src, lang, queryStr); pkg != "" {
-			return pkg
+		if tree != nil && tree.RootNode() != nil {
+			lang := entry.Language()
+			if pkg := runPackageQuery(src, lang, queryStr, tree); pkg != "" {
+				return pkg
+			}
 		}
 	}
 
@@ -40,14 +42,7 @@ func ExtractPackage(src []byte, filePath string, entry *grammars.LangEntry) stri
 	return filepath.Base(dir)
 }
 
-func runPackageQuery(src []byte, lang *gotreesitter.Language, queryStr string) string {
-	parser := gotreesitter.NewParser(lang)
-	tree, err := parser.Parse(src)
-	if err != nil || tree == nil || tree.RootNode() == nil {
-		return ""
-	}
-	defer tree.Release()
-
+func runPackageQuery(src []byte, lang *gotreesitter.Language, queryStr string, tree *gotreesitter.Tree) string {
 	query, err := gotreesitter.NewQuery(queryStr, lang)
 	if err != nil {
 		return ""