Crate webtau_macros 

Proc macros for webtau dual-target command generation.

v2 #[command] Contract

#[webtau::command]
fn name(state: &T | &mut T [, arg: Type]*) [-> ReturnType] { body }

Supported grammar:

• First parameter must be a reference: name: &T (read-only) or name: &mut T (mutable). The identifier can be any name (e.g., state, world, game).
• Additional parameters are named, typed values forwarded as the command’s args.
• Return type may be:
  • T where T: Serialize — value returned directly.
  • Result<T, E> where T: Serialize, E: Display + Serialize — errors surface to JS.
  • Omitted (unit ()) — command returns nothing.
• The function name becomes the command name for invoke().

Generated code:

• Inner function __webtau_<name> containing the original body.
• #[cfg(not(wasm32))] — #[tauri::command] wrapper with State<Mutex<T>>.
• #[cfg(wasm32)] — #[wasm_bindgen] wrapper with args-object deserialize.

Unsupported forms (compile-time error):

• Methods with self.
• Missing or non-reference state parameter.
• Tuple or struct patterns in parameters.
• Async functions.

Attribute Macros

command