67 lines
2.2 KiB
Rust
67 lines
2.2 KiB
Rust
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// -*- coding: utf-8 -*-
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// ------------------------------------------------------------------------------------------------
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// Copyright © 2021, tree-sitter-c authors.
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// See the LICENSE file in this repo for license details.
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// ------------------------------------------------------------------------------------------------
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//! This crate provides a C grammar for the [tree-sitter][] parsing library.
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//!
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//! Typically, you will use the [language][language func] function to add this grammar to a
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//! tree-sitter [Parser][], and then use the parser to parse some code:
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//!
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//! ```
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//! use tree_sitter::Parser;
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//!
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//! let code = r#"
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//! int double(int x) {
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//! return x * 2;
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//! }
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//! "#;
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//! let mut parser = Parser::new();
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//! parser.set_language(tree_sitter_c::language()).expect("Error loading C grammar");
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//! let parsed = parser.parse(code, None);
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//! # let parsed = parsed.unwrap();
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//! # let root = parsed.root_node();
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//! # assert!(!root.has_error());
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//! ```
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//!
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//! [Language]: https://docs.rs/tree-sitter/*/tree_sitter/struct.Language.html
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//! [language func]: fn.language.html
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//! [Parser]: https://docs.rs/tree-sitter/*/tree_sitter/struct.Parser.html
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//! [tree-sitter]: https://tree-sitter.github.io/
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use tree_sitter::Language;
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extern "C" {
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fn tree_sitter_c() -> Language;
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}
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/// Returns the tree-sitter [Language][] for this grammar.
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///
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/// [Language]: https://docs.rs/tree-sitter/*/tree_sitter/struct.Language.html
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pub fn language() -> Language {
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unsafe { tree_sitter_c() }
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}
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/// The source of the C tree-sitter grammar description.
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pub const GRAMMAR: &str = include_str!("../../grammar.js");
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/// The syntax highlighting query for this language.
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pub const HIGHLIGHT_QUERY: &str = include_str!("../../queries/highlights.scm");
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/// The content of the [`node-types.json`][] file for this grammar.
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///
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/// [`node-types.json`]: https://tree-sitter.github.io/tree-sitter/using-parsers#static-node-types
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pub const NODE_TYPES: &str = include_str!("../../src/node-types.json");
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#[cfg(test)]
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mod tests {
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#[test]
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fn can_load_grammar() {
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let mut parser = tree_sitter::Parser::new();
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parser
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.set_language(super::language())
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.expect("Error loading C grammar");
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}
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}
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