Struct MiddlewareComposite 

#[non_exhaustive]
pub struct MiddlewareComposite {
    pub layers: Vec<Arc<dyn Middleware>>,
}

A middleware composite — one or more middleware layers (M::a() >> M::b()).

A single Arc<dyn Middleware> converts into a one-layer composite, so .middleware(Arc::new(MyLayer)) works without the namespace.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

layers: Vec<Arc<dyn Middleware>>

The ordered list of middleware layers.

Implementations

impl MiddlewareComposite

pub fn new(layer: Arc<dyn Middleware>) -> Self

Create a composite containing a single middleware layer.

pub fn len(&self) -> usize

Number of layers.

pub fn is_empty(&self) -> bool

Whether empty.

Trait Implementations

impl Clone for MiddlewareComposite

fn clone(&self) -> MiddlewareComposite

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl From<Arc<dyn Middleware>> for MiddlewareComposite

fn from(layer: Arc<dyn Middleware>) -> Self

Converts to this type from the input type.

impl Shr for MiddlewareComposite

Stack two middleware composites with >>: self outside, rhs inside.

type Output = MiddlewareComposite

The resulting type after applying the >> operator.

fn shr(self, rhs: MiddlewareComposite) -> Self::Output

Performs the >> operation.