Struct Stack 

pub struct Stack<Inner, Outer> { /* private fields */ }

Two middleware composed into one, reifying the closure property as a value: because Stack is itself a Middleware, a composed stack can be named, stored, and passed as one middleware before an executor exists. outer wraps the result of inner, so outer is applied last and therefore observes each execution first.

Implementations

impl<Inner, Outer> Stack<Inner, Outer>

pub const fn new(inner: Inner, outer: Outer) -> Self

Compose inner and outer into one middleware. outer wraps inner’s result, so outer observes each execution first.

Trait Implementations

impl<Inner: Clone, Outer: Clone> Clone for Stack<Inner, Outer>

fn clone(&self) -> Stack<Inner, Outer>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<Inner: Copy, Outer: Copy> Copy for Stack<Inner, Outer>

impl<Inner: Debug, Outer: Debug> Debug for Stack<Inner, Outer>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<Inner: Default, Outer: Default> Default for Stack<Inner, Outer>

fn default() -> Stack<Inner, Outer>

Returns the “default value” for a type.

impl<E, Inner, Outer> Middleware<E> for Stack<Inner, Outer>

where E: Executor, Inner: Middleware<E>, Outer: Middleware<Inner::Executor>,

type Executor = <Outer as Middleware<<Inner as Middleware<E>>::Executor>>::Executor

The wrapped executor type.

fn wrap(&self, executor: E) -> Self::Executor

Wrap an executor with this middleware.