discern

Macro command_registry

Source 
macro_rules! command_registry {
    () => { ... };
    ($($handler:expr),*$(,)?) => { ... };
    ($($command:ty => $handler:expr),*$(,)?) => { ... };
}
Expand description

A macro for creating a CommandHandlerRegistry instance.

This macro provides a convenient way to initialize a CommandHandlerRegistry and register multiple command handlers at once.

§Usage

You can use this macro in two ways:

  1. Providing only handlers:
use discern::command_registry;

let command_registry = command_registry! {
   CreateUserCommandHandler { /* ... */ },
};

This assumes that the types of the handlers can be inferred automatically.

  1. Providing type-handler pairs:
use discern::command_registry;

let command_registry = command_registry! {
   CreateUserCommand => CreateUserCommandHandler { /* ... */ },
};

This explicitly specifies the command type associated with each handler.

§See Also