tree_sitter_scala/
lib.rs

1//! This crate provides Scala language support for the [tree-sitter][] parsing library.
2//!
3//! Typically, you will use the [LANGUAGE][] constant to add this language to a
4//! tree-sitter [Parser][], and then use the parser to parse some code:
5//!
6//! ```
7//! use tree_sitter::Parser;
8//!
9//! let code = r#"
10//! object Hello {
11//!   def main(args: Array[String]) = {
12//!     println("Hello, world")
13//!   }
14//! }
15//! "#;
16//! let mut parser = Parser::new();
17//! let language = tree_sitter_scala::LANGUAGE;
18//! parser
19//!     .set_language(&language.into())
20//!     .expect("Error loading Scala parser");
21//! let tree = parser.parse(code, None).unwrap();
22//! assert!(!tree.root_node().has_error());
23//! ```
24//!
25//! [Parser]: https://docs.rs/tree-sitter/*/tree_sitter/struct.Parser.html
26//! [tree-sitter]: https://tree-sitter.github.io/
27
28use tree_sitter_language::LanguageFn;
29
30extern "C" {
31    fn tree_sitter_scala() -> *const ();
32}
33
34/// The tree-sitter [`LanguageFn`][LanguageFn] for this grammar.
35///
36/// [LanguageFn]: https://docs.rs/tree-sitter-language/*/tree_sitter_language/struct.LanguageFn.html
37pub const LANGUAGE: LanguageFn = unsafe { LanguageFn::from_raw(tree_sitter_scala) };
38
39/// The content of the [`node-types.json`][] file for this grammar.
40///
41/// [`node-types.json`]: https://tree-sitter.github.io/tree-sitter/using-parsers#static-node-types
42pub const NODE_TYPES: &str = include_str!("../../src/node-types.json");
43
44/// The syntax highlighting query for this language.
45pub const HIGHLIGHTS_QUERY: &str = include_str!("../../queries/highlights.scm");
46
47/// The local-variable syntax highlighting query for this language.
48pub const LOCALS_QUERY: &str = include_str!("../../queries/locals.scm");
49
50#[cfg(test)]
51mod tests {
52    #[test]
53    fn test_can_load_grammar() {
54        let mut parser = tree_sitter::Parser::new();
55        parser
56            .set_language(&super::LANGUAGE.into())
57            .expect("Error loading Scala parser");
58    }
59}
tree_sitter_scala/lib.rs

tree_sitter_scala/
lib.rs
