boluo-core 0.1.0

boluo的核心类型和特征
Documentation 
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use std::{fmt, future::Future};

use super::Service;

pub fn service_fn<F>(f: F) -> ServiceFn<F> {
    ServiceFn { f }
}

#[derive(Clone, Copy)]

pub struct ServiceFn<F> {
    f: F,
}

impl<F, Fut, Req, Res, Err> Service<Req> for ServiceFn<F>
where
    F: Fn(Req) -> Fut + Send + Sync,
    Fut: Future<Output = Result<Res, Err>> + Send,
    Req: Send,
{
    type Response = Res;
    type Error = Err;

    async fn call(&self, req: Req) -> Result<Self::Response, Self::Error> {
        (self.f)(req).await
    }
}

impl<F> fmt::Debug for ServiceFn<F> {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        f.debug_struct("ServiceFn")
            .field("f", &std::any::type_name::<F>())
            .finish()
    }
}