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use super::{FromRequest, RequestParts};
use crate::{
body::{boxed, BoxBody},
response::IntoResponse,
};
use async_trait::async_trait;
use http::Response;
use std::convert::Infallible;
#[async_trait]
impl<B> FromRequest<B> for ()
where
B: Send,
{
type Rejection = Infallible;
async fn from_request(_: &mut RequestParts<B>) -> Result<(), Self::Rejection> {
Ok(())
}
}
macro_rules! impl_from_request {
() => {};
( $($ty:ident),* $(,)? ) => {
#[async_trait]
#[allow(non_snake_case)]
impl<B, $($ty,)*> FromRequest<B> for ($($ty,)*)
where
$( $ty: FromRequest<B> + Send, )*
B: Send,
{
type Rejection = Response<BoxBody>;
async fn from_request(req: &mut RequestParts<B>) -> Result<Self, Self::Rejection> {
$( let $ty = $ty::from_request(req).await.map_err(|err| err.into_response().map(boxed))?; )*
Ok(($($ty,)*))
}
}
};
}
impl_from_request!(T1);
impl_from_request!(T1, T2);
impl_from_request!(T1, T2, T3);
impl_from_request!(T1, T2, T3, T4);
impl_from_request!(T1, T2, T3, T4, T5);
impl_from_request!(T1, T2, T3, T4, T5, T6);
impl_from_request!(T1, T2, T3, T4, T5, T6, T7);
impl_from_request!(T1, T2, T3, T4, T5, T6, T7, T8);
impl_from_request!(T1, T2, T3, T4, T5, T6, T7, T8, T9);
impl_from_request!(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10);
impl_from_request!(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11);
impl_from_request!(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12);
impl_from_request!(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13);
impl_from_request!(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14);
impl_from_request!(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15);
impl_from_request!(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16);