# Marker Adapter 🔌
[](https://crates.io/crates/marker_adapter)
[](#license)
This crate provides a common interface for drivers to communicate with lint crates for [Marker]. It does some heavy lifting which would otherwise need to be done by each individual driver. You're welcome to check out [Marker's Readme] if you're interested in the project.
> **Warning**
>
> This crate is not part of Marker's official API, it's only intended to be used by drivers.
[Marker]: https://github.com/rust-marker/marker
[Marker's Readme]: https://github.com/rust-marker/marker/blob/master/README.md
## Functions
### Driver -> Lint Crate Communication
The adapter can load a list of lint crates and send information from the driver to all lint crates. The adapter and API takes care of safe ABI communication between the driver and lint crates.
### Lint Crate -> Driver Communication
Marker's API requires some callbacks from the lint crates into the driver. The adapter can deal with all the ABI conversions, drivers only need to implement the `DriverContext` trait provided by the adapter.
### Creating an adapter instance
An adapter instance can be created from the environment. For this, the following environment values are read:
* `MARKER_LINT_CRATES`: A semicolon separated list of crate name and absolute path pairs. Each pair is internally separated by a colon.
## Contributing
Contributions are highly appreciated! If you encounter any issues or have suggestions for improvements, please check out [Marker's GitHub repository](https://github.com/rust-marker/marker).
## License
Copyright (c) 2022-2023 Rust-Marker
Rust-marker is distributed under the terms of the MIT license or the Apache License (Version 2.0).
See [LICENSE-APACHE](https://github.com/rust-marker/marker/blob/master/LICENSE-APACHE), [LICENSE-MIT](https://github.com/rust-marker/marker/blob/master/LICENSE-MIT).