finchers 0.13.5

A combinator library for builidng asynchronous HTTP services
Documentation 
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use futures::Future;
use std::fmt;

use common::Tuple;
use endpoint::{ApplyContext, ApplyResult, Endpoint, SendEndpoint};
use error::Error;

trait FutureObjEndpoint<'a>: 'a {
    type Output: Tuple;

    fn apply_obj(
        &'a self,
        ecx: &mut ApplyContext<'_>,
    ) -> ApplyResult<Box<dyn Future<Item = Self::Output, Error = Error> + Send + 'a>>;
}

impl<'e, E: SendEndpoint<'e>> FutureObjEndpoint<'e> for E {
    type Output = E::Output;

    #[inline(always)]
    fn apply_obj(
        &'e self,
        ecx: &mut ApplyContext<'_>,
    ) -> ApplyResult<Box<dyn Future<Item = Self::Output, Error = Error> + Send + 'e>> {
        let future = self.apply_send(ecx)?;
        Ok(Box::new(future))
    }
}

#[allow(missing_docs)]
pub struct EndpointObj<T: Tuple + 'static> {
    inner: Box<dyn for<'a> FutureObjEndpoint<'a, Output = T> + Send + Sync + 'static>,
}

impl<T: Tuple + 'static> EndpointObj<T> {
    #[allow(missing_docs)]
    pub fn new<E>(endpoint: E) -> EndpointObj<T>
    where
        for<'a> E: SendEndpoint<'a, Output = T> + Send + Sync + 'static,
    {
        EndpointObj {
            inner: Box::new(endpoint),
        }
    }
}

impl<T: Tuple + 'static> fmt::Debug for EndpointObj<T> {
    fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
        formatter.debug_struct("EndpointObj").finish()
    }
}

impl<'e, T: Tuple + 'static> Endpoint<'e> for EndpointObj<T> {
    type Output = T;
    type Future = Box<dyn Future<Item = Self::Output, Error = Error> + Send + 'e>;

    #[inline(always)]
    fn apply(&'e self, ecx: &mut ApplyContext<'_>) -> ApplyResult<Self::Future> {
        self.inner.apply_obj(ecx)
    }
}

// ==== BoxedLocal ====

trait LocalFutureObjEndpoint<'a>: 'a {
    type Output: Tuple;

    fn apply_local_obj(
        &'a self,
        ecx: &mut ApplyContext<'_>,
    ) -> ApplyResult<Box<dyn Future<Item = Self::Output, Error = Error> + 'a>>;
}

impl<'e, E: Endpoint<'e>> LocalFutureObjEndpoint<'e> for E {
    type Output = E::Output;

    #[inline(always)]
    fn apply_local_obj(
        &'e self,
        ecx: &mut ApplyContext<'_>,
    ) -> ApplyResult<Box<dyn Future<Item = Self::Output, Error = Error> + 'e>> {
        let future = self.apply(ecx)?;
        Ok(Box::new(future))
    }
}

#[allow(missing_docs)]
pub struct LocalEndpointObj<T: Tuple + 'static> {
    inner: Box<dyn for<'a> LocalFutureObjEndpoint<'a, Output = T> + 'static>,
}

impl<T: Tuple + 'static> LocalEndpointObj<T> {
    #[allow(missing_docs)]
    pub fn new<E>(endpoint: E) -> LocalEndpointObj<T>
    where
        for<'a> E: Endpoint<'a, Output = T> + Send + Sync + 'static,
    {
        LocalEndpointObj {
            inner: Box::new(endpoint),
        }
    }
}

impl<T: Tuple + 'static> fmt::Debug for LocalEndpointObj<T> {
    fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
        formatter.debug_struct("LocalEndpointObj").finish()
    }
}

impl<'e, T: Tuple + 'static> Endpoint<'e> for LocalEndpointObj<T> {
    type Output = T;
    type Future = Box<dyn Future<Item = Self::Output, Error = Error> + 'e>;

    #[inline(always)]
    fn apply(&'e self, ecx: &mut ApplyContext<'_>) -> ApplyResult<Self::Future> {
        self.inner.apply_local_obj(ecx)
    }
}