System Initiative

/// Private API. #[doc(hidden)] #[macro_export] macro_rules! __log_rejection { ( rejection_type = $ty:ident, body_text = $body_text:expr_2021, status = $status:expr_2021, ) => { tracing::event!( target: "naxum::rejection", tracing::Level::TRACE, status = $status.as_u16(), body = $body_text, rejection_type = std::any::type_name::<$ty>(), "rejecting message", ); }; } #[macro_export] macro_rules! define_rejection { ( #[status_code = $status_code:expr_2021] #[body = $body:expr_2021] $(#[$m:meta])* pub struct $name:ident; ) => { $(#[$m])* #[derive(Debug)] #[non_exhaustive] pub struct $name; impl $crate::response::IntoResponse for $name { fn into_response(self) -> $crate::response::Response { let status = self.status(); $crate::__log_rejection!( rejection_type = $name, body_text = $body, status = status, ); (status, $body).into_response() } } impl $name { /// Get the response body text used for this rejection. pub fn body_text(&self) -> String { $body.into() } /// Get the status code used for this rejection. pub fn status(&self) -> $crate::StatusCode { $crate::StatusCode::from_u16($status_code).expect("status code is valid") } } impl std::fmt::Display for $name { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { write!(f, "{}", $body) } } impl std::error::Error for $name {} impl Default for $name { fn default() -> Self { Self } } }; ( #[status_code = $status_code:expr_2021] #[body = $body:expr_2021] $(#[$m:meta])* pub struct $name:ident(Error); ) => { $(#[$m])* #[derive(Debug)] pub struct $name(pub(crate) $crate::Error); impl $name { pub(crate) fn from_err<E>(err: E) -> Self where E: Into<$crate::BoxError>, { Self($crate::Error::new(err)) } } impl $crate::response::IntoResponse for $name { fn into_response(self) -> $crate::response::Response { let status = self.status(); $crate::__log_rejection!( rejection_type = $name, body_text = $body, status = status, ); (status, $body).into_response() } } impl $name { /// Get the response body text used for this rejection. pub fn body_text(&self) -> String { $body.into() } /// Get the status code used for this rejection. pub fn status(&self) -> $crate::StatusCode { $crate::StatusCode::from_u16($status_code).expect("status code is valid") } } impl std::fmt::Display for $name { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { write!(f, "{}", $body) } } impl std::error::Error for $name { fn source(&self) -> Option<&(dyn std::error::Error + 'static)> { Some(&self.0) } } }; } #[macro_export] macro_rules! composite_rejection { ( $(#[$m:meta])* pub enum $name:ident { $($variant:ident),+ $(,)? } ) => { $(#[$m])* #[derive(Debug)] #[non_exhaustive] pub enum $name { $( #[allow(missing_docs)] $variant($variant) ),+ } impl $crate::response::IntoResponse for $name { fn into_response(self) -> $crate::response::Response { match self { $( Self::$variant(inner) => inner.into_response(), )+ } } } impl $name { /// Get the response body text used for this rejection. pub fn body_text(&self) -> String { match self { $( Self::$variant(inner) => inner.body_text(), )+ } } /// Get the status code used for this rejection. pub fn status(&self) -> $crate::StatusCode { match self { $( Self::$variant(inner) => inner.status(), )+ } } } $( impl From<$variant> for $name { fn from(inner: $variant) -> Self { Self::$variant(inner) } } )+ impl std::fmt::Display for $name { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { match self { $( Self::$variant(inner) => write!(f, "{inner}"), )+ } } } impl std::error::Error for $name { fn source(&self) -> Option<&(dyn std::error::Error + 'static)> { match self { $( Self::$variant(inner) => inner.source(), )+ } } } }; } #[rustfmt::skip] macro_rules! all_the_tuples { ($name:ident) => { $name!([], T1); $name!([T1], T2); $name!([T1, T2], T3); $name!([T1, T2, T3], T4); $name!([T1, T2, T3, T4], T5); $name!([T1, T2, T3, T4, T5], T6); $name!([T1, T2, T3, T4, T5, T6], T7); $name!([T1, T2, T3, T4, T5, T6, T7], T8); $name!([T1, T2, T3, T4, T5, T6, T7, T8], T9); $name!([T1, T2, T3, T4, T5, T6, T7, T8, T9], T10); $name!([T1, T2, T3, T4, T5, T6, T7, T8, T9, T10], T11); $name!([T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11], T12); $name!([T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12], T13); $name!([T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13], T14); $name!([T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14], T15); $name!([T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15], T16); }; } macro_rules! all_the_tuples_no_last_special_case { ($name:ident) => { $name!(T1); $name!(T1, T2); $name!(T1, T2, T3); $name!(T1, T2, T3, T4); $name!(T1, T2, T3, T4, T5); $name!(T1, T2, T3, T4, T5, T6); $name!(T1, T2, T3, T4, T5, T6, T7); $name!(T1, T2, T3, T4, T5, T6, T7, T8); $name!(T1, T2, T3, T4, T5, T6, T7, T8, T9); $name!(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10); $name!(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11); $name!(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12); $name!(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13); $name!(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14); $name!( T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 ); $name!( T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16 ); }; }