Trait swagger::context::Has

source · 
pub trait Has<T> {
    // Required methods
    fn get(&self) -> &T;
    fn get_mut(&mut self) -> &mut T;
    fn set(&mut self, value: T);
}
Expand description

Defines methods for accessing, modifying, adding and removing the data stored in a context. Used to specify the requirements that a hyper service makes on a generic context type that it receives with a request, e.g.

struct MyService<C> {
    marker: PhantomData<C>,
}

impl<C> hyper::service::Service<(hyper::Request<hyper::Body>, C)> for MyService<C>
    where C: Has<MyItem> + Send + 'static
{
    type Response = hyper::Response<hyper::Body>;
    type Error = std::io::Error;
    type Future = Pin<Box<dyn Future<Output=Result<Self::Response, Self::Error>>>>;

    fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
        Poll::Ready(Ok(()))
    }

    fn call(&mut self, req : (hyper::Request<hyper::Body>, C)) -> Self::Future {
        let (_, context) = req;
        do_something_with_my_item(Has::<MyItem>::get(&context));
        Box::pin(ok(hyper::Response::new(hyper::Body::empty())))
    }
}

Required Methods§

source

fn get(&self) -> &T

Get an immutable reference to the value.

source

fn get_mut(&mut self) -> &mut T

Get a mutable reference to the value.

source

fn set(&mut self, value: T)

Set the value.

Implementors§