Trait CommandMiddleware 

pub trait CommandMiddleware: Send + Sync {
    // Required method
    fn apply<'life0, 'life1, 'async_trait>(
        &'life0 self,
        cmd: &'life1 mut Command,
    ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
}

Middleware that modifies a Command before it is spawned.

Required Methods

fn apply<'life0, 'life1, 'async_trait>( &'life0 self, cmd: &'life1 mut Command, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<T: CommandMiddleware + ?Sized> CommandMiddleware for Arc<T>

Lets a shared Arc<dyn CommandMiddleware> be used wherever a middleware is expected, so the same instance can be layered here and used elsewhere.

fn apply<'life0, 'life1, 'async_trait>( &'life0 self, cmd: &'life1 mut Command, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Implementors