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@ -1,13 +1,25 @@
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//! This crate provides gleam language support for the [tree-sitter][] parsing library.
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//! This crate provides Gleam language support 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 language 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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//! let code = "";
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//! let mut parser = tree_sitter::Parser::new();
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//! parser.set_language(tree_sitter_gleam::language()).expect("Error loading gleam grammar");
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//! use tree_sitter::Parser;
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//!
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//! let code = r#"
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//! import gleam/io
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//!
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//! pub fn main() {
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//! io.println("hello, friend!")
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//! }
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//! "#;
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//! let mut parser = Parser::new();
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//! let language = tree_sitter_gleam::LANGUAGE;
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//! parser
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//! .set_language(&language.into())
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//! .expect("Error loading Gleam parser");
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//! let tree = parser.parse(code, None).unwrap();
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//! assert!(!tree.root_node().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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@ -15,29 +27,27 @@
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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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use tree_sitter_language::LanguageFn;
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extern "C" {
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fn tree_sitter_gleam() -> Language;
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fn tree_sitter_gleam() -> *const ();
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}
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/// Get 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_gleam() }
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}
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/// The tree-sitter [`LanguageFn`] for this grammar.
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pub const LANGUAGE: LanguageFn = unsafe { LanguageFn::from_raw(tree_sitter_gleam) };
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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: &'static str = include_str!("../../src/node-types.json");
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// Uncomment these to include any queries that this grammar contains
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/// The syntax highlighting query for this language.
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pub const HIGHLIGHT_QUERY: &'static str = include_str!("../../queries/highlights.scm");
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pub const HIGHLIGHTS_QUERY: &'static str = include_str!("../../queries/highlights.scm");
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// pub const INJECTIONS_QUERY: &'static str = include_str!("../../queries/injections.scm");
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// The locals tagging query for this language.
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pub const LOCALS_QUERY: &'static str = include_str!("../../queries/locals.scm");
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/// The symbol tagging query for this language.
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pub const TAGS_QUERY: &'static str = include_str!("../../queries/tags.scm");
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#[cfg(test)]
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@ -46,7 +56,7 @@ mod tests {
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fn test_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 gleam language");
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.set_language(&super::LANGUAGE.into())
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.expect("Error loading Gleam parser");
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}
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}
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Rebecca Valentine
GitHub