loess-rust-opaque is a companion crate to loess-rust that contains additional opaque grammar types not yet implemented natively for Loess. In practice, here that usually means Syn-wrappers.

Note that this crate will accidentally accept unstable grammar. Narrowing that towards stable Rust grammar only is not considered a breaking change.

When a part of the grammar becomes available through loess-rust, the version available through loess-rust-opaque is marked deprecated. Where compatible, which should usually be the case, the latter may also be switched over to that implementation as a non-breaking change.

How to read the version number:

After the "+", the most-major version of the (most directly) compatible Loess releases is listed.