tree_sitter_arduino/lib.rs
1//! This crate provides Arduino 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//! let code = r#"
8//! void setup() {
9//! pinMode(LED_BUILTIN, OUTPUT);
10//! }
11//!
12//! void loop() {
13//! digitalWrite(LED_BUILTIN, HIGH);
14//! delay(1000);
15//! digitalWrite(LED_BUILTIN, LOW);
16//! delay(1000);
17//! }
18//! "#;
19//! let mut parser = tree_sitter::Parser::new();
20//! let language = tree_sitter_arduino::LANGUAGE;
21//! parser
22//! .set_language(&language.into())
23//! .expect("Error loading Arduino parser");
24//! let tree = parser.parse(code, None).unwrap();
25//! assert!(!tree.root_node().has_error());
26//! ```
27//!
28//! [`Parser`]: https://docs.rs/tree-sitter/0.25.8/tree_sitter/struct.Parser.html
29//! [tree-sitter]: https://tree-sitter.github.io/
30
31use tree_sitter_language::LanguageFn;
32
33extern "C" {
34 fn tree_sitter_arduino() -> *const ();
35}
36
37/// The tree-sitter [`LanguageFn`] for this grammar.
38pub const LANGUAGE: LanguageFn = unsafe { LanguageFn::from_raw(tree_sitter_arduino) };
39
40/// The content of the [`node-types.json`] file for this grammar.
41///
42/// [`node-types.json`]: https://tree-sitter.github.io/tree-sitter/using-parsers/6-static-node-types
43pub const NODE_TYPES: &str = include_str!("../../src/node-types.json");
44
45/// The syntax highlighting queries.
46pub const HIGHLIGHTS_QUERY: &str = include_str!("../../queries/highlights.scm");
47
48/// The tags queries used for code navigation.
49pub const TAGS_QUERY: &str = include_str!("../../queries/tags.scm");
50
51#[cfg(test)]
52mod tests {
53 #[test]
54 fn test_can_load_grammar() {
55 let mut parser = tree_sitter::Parser::new();
56 parser
57 .set_language(&super::LANGUAGE.into())
58 .expect("Error loading Arduino parser");
59 }
60}