wg-grammar

This is the home for the Rust Grammar Working Group. The goal of the working group is to satisfy RFC 1331 and produce a testable, canonical grammar for the Rust language. The primary audiences for the grammar are:

• Rust RFC authors who wish to propose and communicate changes.
• rustc and Rust tool developers who need an authoritative definition of the grammar.
• To assist documentation efforts to communicate valid Rust syntax to users, and to facilitate the Rust language specification.

The grammar tools produced here are not intended to be used directly within rustc, or any other existing tools.

Meeting Schedule

Meetings take place on the #wg-grammar channel on Discord at 20:00 CET every other Wednesday. Feel free to drop by the Discord channel if you are interested!

Test Suite

This project includes a executable binary for exercising the grammar. Use cargo run to build and run it. Using --release is encouraged as it is many times faster. It supports several subcommands to point it at different files or directories to examine. For example, if you check out the submodule (explained below), you can run the tests with the following command:

cargo run --release -- dir external/rust/src

This repository includes a submodule to the main rust repo to use as a collection of Rust code to test against the grammar. The command git submodule update --init may be used to fetch it. However, it is not necessary and you may run the tool against any collection of Rust code at your disposal.

Links

• Meeting notes
• Resources

License

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in this crate by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.