Crate wayland_scanner

Wayland protocol code-generation machinnery

This crate provides procedural macros for generating the rust code associated with a Wayland XML protocol specification, for use with the wayland-client, wayland-server and wayland-backend crates.

Before trying to use this crate, you may check if the protocol extension you want to use is not already exposed in the wayland-protocols crate.

Example usage

Below is a template for generating the code for a custom protocol client-side. Server-side is identical, just replacing client by server. The path to the XML file is relative to the crate root.

// Generate the bindings in their own module
pub mod my_protocol {
    use wayland_client;
    // import objects from the core protocol if needed
    use wayland_client::protocol::*;

    // This module hosts a low-level representation of the protocol objects
    // you will not need to interact with it yourself, but the code generated
    // by the generate_client_code! macro will use it
    pub mod __interfaces {
        // import the interfaces from the core protocol if needed
        use wayland_client::protocol::__interfaces::*;
        wayland_scanner::generate_interfaces!("./path/to/the/protocol.xml");
    }
    use self::__interfaces::*;

    // This macro generates the actual types that represent the wayland objects of
    // your custom protocol
    wayland_scanner::generate_client_code!("./path/to/the/protocol.xml");
}

Macros

• generate_client_code
  Proc-macro for generating client-side API associated with an XML specification
• generate_interfaces
  Proc-macro for generating low-level interfaces associated with an XML specification
• generate_server_code
  Proc-macro for generating server-side API associated with an XML specification