feat(native): port R extractor to Rust

crates/codegraph-core/Cargo.toml

@@ -39,6 +39,7 @@ tree-sitter-ocaml = "0.24"
 tree-sitter-julia = "0.23"
 tree-sitter-clojure-orchard = "0.2"
 tree-sitter-erlang = "0.16"
+tree-sitter-r = "1.2"
 tree-sitter-solidity = "1.2"
 rayon = "1"
 ignore = "0.4"

crates/codegraph-core/src/extractors/helpers.rs

@@ -404,6 +404,17 @@ pub const ERLANG_AST_CONFIG: LangAstConfig = LangAstConfig {
     string_prefixes: &[],
 };
 
+pub const R_AST_CONFIG: LangAstConfig = LangAstConfig {
+    new_types: &[],
+    throw_types: &[],
+    await_types: &[],
+    // tree-sitter-r emits `string` for both single- and double-quoted literals.
+    string_types: &["string"],
+    regex_types: &[],
+    quote_chars: &['\'', '"'],
+    string_prefixes: &[],
+};
+
 pub const SOLIDITY_AST_CONFIG: LangAstConfig = LangAstConfig {
     new_types: &["new_expression"],
     throw_types: &["revert_statement"],

crates/codegraph-core/src/extractors/mod.rs

@@ -19,6 +19,7 @@ pub mod lua;
 pub mod ocaml;
 pub mod php;
 pub mod python;
+pub mod r_lang;
 pub mod ruby;
 pub mod rust_lang;
 pub mod scala;
@@ -143,6 +144,9 @@ pub fn extract_symbols_with_opts(
         LanguageKind::Erlang => {
             erlang::ErlangExtractor.extract_with_opts(tree, source, file_path, include_ast_nodes)
         }
+        LanguageKind::R => {
+            r_lang::RExtractor.extract_with_opts(tree, source, file_path, include_ast_nodes)
+        }
         LanguageKind::Solidity => {
             solidity::SolidityExtractor.extract_with_opts(tree, source, file_path, include_ast_nodes)
         }