Initial Rust bindings implementation

.gitignore

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 /build
 /node_modules
-
-/bindings/rust
-/Cargo.toml
+/target

Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "aho-corasick"
+version = "0.7.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e37cfd5e7657ada45f742d6e99ca5788580b5c529dc78faf11ece6dc702656f"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "cc"
+version = "1.0.72"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22a9137b95ea06864e018375b72adfb7db6e6f68cfc8df5a04d00288050485ee"
+
+[[package]]
+name = "memchr"
+version = "2.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
+
+[[package]]
+name = "regex"
+version = "1.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d07a8629359eb56f1e2fb1652bb04212c072a87ba68546a04065d525673ac461"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.6.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
+
+[[package]]
+name = "tree-sitter"
+version = "0.20.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c36be3222512d85a112491ae0cc280a38076022414f00b64582da1b7565ffd82"
+dependencies = [
+ "cc",
+ "regex",
+]
+
+[[package]]
+name = "tree-sitter-toml"
+version = "0.20.0"
+dependencies = [
+ "cc",
+ "tree-sitter",
+]

Cargo.toml

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+[package]
+name = "tree-sitter-toml"
+description = "TOML grammar for the tree-sitter parsing library"
+version = "0.20.0"
+license = "MIT"
+readme = "bindings/rust/README.md"
+keywords = ["incremental", "parsing", "toml"]
+categories = ["parsing", "text-editors"]
+repository = "https://github.com/Mathspy/tree-sitter-toml"
+edition = "2018"
+
+build = "bindings/rust/build.rs"
+include = [
+  "bindings/rust/*",
+  "grammar.js",
+  "queries/*",
+  "src/*",
+]
+autoexamples = false
+
+[lib]
+path = "bindings/rust/lib.rs"
+
+[dependencies]
+tree-sitter = "0.20"
+
+[build-dependencies]
+cc = "1.0"

bindings/rust/README.md

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+# tree-sitter-toml
+
+This crate provides TOML grammar for the [tree-sitter][] parsing library. To
+use this crate, add it to the `[dependencies]` section of your `Cargo.toml`
+file. (Note that you will probably also need to depend on the
+[`tree-sitter`][tree-sitter crate] crate to use the parsed result in any useful
+way.)
+
+``` toml
+[dependencies]
+tree-sitter = "0.17"
+tree-sitter-toml = "0.16"
+```
+
+Typically, you will use the [language][language func] function to add this
+grammar to a tree-sitter [Parser][], and then use the parser to parse some code:
+
+```rust
+let code = r#"
+[package]
+name = "cargo"
+version = "0.1.0"
+edition = "2021"
+"#;
+let mut parser = Parser::new();
+parser.set_language(tree_sitter_toml::language()).expect("Error loading TOML grammar");
+let parsed = parser.parse(code, None);
+```
+
+It's based on the lovely bindings of [tree-sitter-rust][] and uses the awesome grammar
+defined by [tree-sitter-toml][].
+
+[Language]: https://docs.rs/tree-sitter/*/tree_sitter/struct.Language.html
+[language func]: https://docs.rs/tree-sitter-toml/*/tree_sitter_rust/fn.language.html
+[Parser]: https://docs.rs/tree-sitter/*/tree_sitter/struct.Parser.html
+[tree-sitter]: https://tree-sitter.github.io/
+[tree-sitter crate]: https://crates.io/crates/tree-sitter
+[tree-sitter-rust]: https://github.com/tree-sitter/tree-sitter-rust/tree/master/bindings/rust
+[tree-sitter-toml]: https://github.com/ikatyang/tree-sitter-toml

bindings/rust/build.rs

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+fn main() {
+    let src_dir = std::path::Path::new("src");
+    let mut config = cc::Build::new();
+    config.include(&src_dir);
+    config
+        .flag_if_supported("-Wno-unused-parameter")
+        .flag_if_supported("-Wno-unused-but-set-variable")
+        .flag_if_supported("-Wno-trigraphs");
+    let parser_path = src_dir.join("parser.c");
+    let scanner_path = src_dir.join("scanner.c");
+    println!("cargo:rerun-if-changed={}", parser_path.to_str().unwrap());
+    println!("cargo:rerun-if-changed={}", scanner_path.to_str().unwrap());
+    config.file(&parser_path);
+    config.file(&scanner_path);
+    config.compile("parser-scanner");
+}

bindings/rust/lib.rs

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+// -*- coding: utf-8 -*-
+// ------------------------------------------------------------------------------------------------
+// Modified from tree-sitter-rust under the permissive license of MIT.
+// Based on the grammar of tree-sitter-toml, used under the permissive license of MIT
+// Copyright © 2021, tree-sitter-toml authors.
+// Copyright © 2021, tree-sitter-rust authors.
+// See the LICENSE file in this repo for license details.
+// ------------------------------------------------------------------------------------------------
+
+//! This crate provides TOML grammar for the [tree-sitter][] parsing library.
+//!
+//! Typically, you will use the [language][language func] function to add this grammar to a
+//! tree-sitter [Parser][], and then use the parser to parse some code:
+//!
+//! ```
+//! use tree_sitter::Parser;
+//!
+//! let code = r#"
+//! [package]
+//! name = "cargo"
+//! version = "0.1.0"
+//! edition = "2021"
+//! "#;
+//! let mut parser = Parser::new();
+//! parser.set_language(tree_sitter_toml::language()).expect("Error loading TOML grammar");
+//! let parsed = parser.parse(code, None);
+//! # let parsed = parsed.unwrap();
+//! # let root = parsed.root_node();
+//! # assert!(!root.has_error());
+//! ```
+//!
+//! [Language]: https://docs.rs/tree-sitter/*/tree_sitter/struct.Language.html
+//! [language func]: fn.language.html
+//! [Parser]: https://docs.rs/tree-sitter/*/tree_sitter/struct.Parser.html
+//! [tree-sitter]: https://tree-sitter.github.io/
+
+use tree_sitter::Language;
+
+extern "C" {
+    fn tree_sitter_toml() -> Language;
+}
+
+/// Returns the tree-sitter [Language][] for this grammar.
+///
+/// [Language]: https://docs.rs/tree-sitter/*/tree_sitter/struct.Language.html
+pub fn language() -> Language {
+    unsafe { tree_sitter_toml() }
+}
+
+/// The source of the TOML tree-sitter grammar description.
+pub const GRAMMAR: &str = include_str!("../../grammar.js");
+
+/// The syntax highlighting query for this language.
+pub const HIGHLIGHT_QUERY: &str = include_str!("../../queries/highlights.scm");
+
+/// The content of the [`node-types.json`][] file for this grammar.
+///
+/// [`node-types.json`]: https://tree-sitter.github.io/tree-sitter/using-parsers#static-node-types
+pub const NODE_TYPES: &str = include_str!("../../src/node-types.json");
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn can_load_grammar() {
+        let mut parser = tree_sitter::Parser::new();
+        parser
+            .set_language(super::language())
+            .expect("Error loading TOML  grammar");
+    }
+}