/rust/registry/src/index.crates.io-1949cf8c6b5b557f/tower-layer-0.3.3/src/identity.rs

Source
use super::Layer;
use std::fmt;

/// A no-op middleware.
///
/// When wrapping a [`Service`], the [`Identity`] layer returns the provided
/// service without modifying it.
///
/// [`Service`]: https://docs.rs/tower-service/latest/tower_service/trait.Service.html
#[derive(Default, Clone)]
pub struct Identity {
    _p: (),
}

impl Identity {
    /// Create a new [`Identity`] value
    pub const fn new() -> Identity {
        Identity { _p: () }
    }
}

/// Decorates a [`Service`], transforming either the request or the response.
///
/// [`Service`]: https://docs.rs/tower-service/latest/tower_service/trait.Service.html
impl<S> Layer<S> for Identity {
    type Service = S;

    fn layer(&self, inner: S) -> Self::Service {
        inner
    }
}

impl fmt::Debug for Identity {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        f.debug_struct("Identity").finish()
    }
}

Line	Count	Source
1		use super::Layer;
2		use std::fmt;
3
4		/// A no-op middleware.
5		///
6		/// When wrapping a [`Service`], the [`Identity`] layer returns the provided
7		/// service without modifying it.
8		///
9		/// [`Service`]: https://docs.rs/tower-service/latest/tower_service/trait.Service.html
10		#[derive(Default, Clone)]
11		pub struct Identity {
12		_p: (),
13		}
14
15		impl Identity {
16		/// Create a new [`Identity`] value
17	0	pub const fn new() -> Identity {
18	0	Identity { _p: () }
19	0	}
20		}
21
22		/// Decorates a [`Service`], transforming either the request or the response.
23		///
24		/// [`Service`]: https://docs.rs/tower-service/latest/tower_service/trait.Service.html
25		impl<S> Layer<S> for Identity {
26		type Service = S;
27
28	0	fn layer(&self, inner: S) -> Self::Service {
29	0	inner
30	0	} Unexecuted instantiation: <tower_layer::identity::Identity as tower_layer::Layer<tower::util::either::Either<tower::limit::rate::service::RateLimit<tonic::transport::channel::service::reconnect::Reconnect<tonic::transport::channel::service::connection::MakeSendRequestService<tonic::transport::channel::service::connector::Connector<tonic::transport::channel::uds_connector::UdsConnector>>, http::uri::Uri>>, tonic::transport::channel::service::reconnect::Reconnect<tonic::transport::channel::service::connection::MakeSendRequestService<tonic::transport::channel::service::connector::Connector<tonic::transport::channel::uds_connector::UdsConnector>>, http::uri::Uri>>>>::layer Unexecuted instantiation: <tower_layer::identity::Identity as tower_layer::Layer<tower::util::either::Either<tower::limit::rate::service::RateLimit<tonic::transport::channel::service::reconnect::Reconnect<tonic::transport::channel::service::connection::MakeSendRequestService<tonic::transport::channel::service::connector::Connector<hyper_util::client::legacy::connect::http::HttpConnector>>, http::uri::Uri>>, tonic::transport::channel::service::reconnect::Reconnect<tonic::transport::channel::service::connection::MakeSendRequestService<tonic::transport::channel::service::connector::Connector<hyper_util::client::legacy::connect::http::HttpConnector>>, http::uri::Uri>>>>::layer Unexecuted instantiation: <tower_layer::identity::Identity as tower_layer::Layer<tonic::transport::channel::service::add_origin::AddOrigin<tonic::transport::channel::service::user_agent::UserAgent<tonic::transport::service::grpc_timeout::GrpcTimeout<tower::util::either::Either<tower::limit::concurrency::service::ConcurrencyLimit<tower::util::either::Either<tower::limit::rate::service::RateLimit<tonic::transport::channel::service::reconnect::Reconnect<tonic::transport::channel::service::connection::MakeSendRequestService<tonic::transport::channel::service::connector::Connector<tonic::transport::channel::uds_connector::UdsConnector>>, http::uri::Uri>>, tonic::transport::channel::service::reconnect::Reconnect<tonic::transport::channel::service::connection::MakeSendRequestService<tonic::transport::channel::service::connector::Connector<tonic::transport::channel::uds_connector::UdsConnector>>, http::uri::Uri>>>, tower::util::either::Either<tower::limit::rate::service::RateLimit<tonic::transport::channel::service::reconnect::Reconnect<tonic::transport::channel::service::connection::MakeSendRequestService<tonic::transport::channel::service::connector::Connector<tonic::transport::channel::uds_connector::UdsConnector>>, http::uri::Uri>>, tonic::transport::channel::service::reconnect::Reconnect<tonic::transport::channel::service::connection::MakeSendRequestService<tonic::transport::channel::service::connector::Connector<tonic::transport::channel::uds_connector::UdsConnector>>, http::uri::Uri>>>>>>>>::layer Unexecuted instantiation: <tower_layer::identity::Identity as tower_layer::Layer<tonic::transport::channel::service::add_origin::AddOrigin<tonic::transport::channel::service::user_agent::UserAgent<tonic::transport::service::grpc_timeout::GrpcTimeout<tower::util::either::Either<tower::limit::concurrency::service::ConcurrencyLimit<tower::util::either::Either<tower::limit::rate::service::RateLimit<tonic::transport::channel::service::reconnect::Reconnect<tonic::transport::channel::service::connection::MakeSendRequestService<tonic::transport::channel::service::connector::Connector<hyper_util::client::legacy::connect::http::HttpConnector>>, http::uri::Uri>>, tonic::transport::channel::service::reconnect::Reconnect<tonic::transport::channel::service::connection::MakeSendRequestService<tonic::transport::channel::service::connector::Connector<hyper_util::client::legacy::connect::http::HttpConnector>>, http::uri::Uri>>>, tower::util::either::Either<tower::limit::rate::service::RateLimit<tonic::transport::channel::service::reconnect::Reconnect<tonic::transport::channel::service::connection::MakeSendRequestService<tonic::transport::channel::service::connector::Connector<hyper_util::client::legacy::connect::http::HttpConnector>>, http::uri::Uri>>, tonic::transport::channel::service::reconnect::Reconnect<tonic::transport::channel::service::connection::MakeSendRequestService<tonic::transport::channel::service::connector::Connector<hyper_util::client::legacy::connect::http::HttpConnector>>, http::uri::Uri>>>>>>>>::layer Unexecuted instantiation: <tower_layer::identity::Identity as tower_layer::Layer<tonic::transport::channel::service::reconnect::Reconnect<tonic::transport::channel::service::connection::MakeSendRequestService<tonic::transport::channel::service::connector::Connector<tonic::transport::channel::uds_connector::UdsConnector>>, http::uri::Uri>>>::layer Unexecuted instantiation: <tower_layer::identity::Identity as tower_layer::Layer<tonic::transport::channel::service::reconnect::Reconnect<tonic::transport::channel::service::connection::MakeSendRequestService<tonic::transport::channel::service::connector::Connector<hyper_util::client::legacy::connect::http::HttpConnector>>, http::uri::Uri>>>::layer Unexecuted instantiation: <tower_layer::identity::Identity as tower_layer::Layer<_>>::layer
31		}
32
33		impl fmt::Debug for Identity {
34	0	fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
35	0	f.debug_struct("Identity").finish()
36	0	}
37		}

Coverage Report

Created: 2026-11-03 08:22