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add Service combinators

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This commit is contained in:
Nikolay Kim 2018-08-29 12:20:35 -07:00
parent 6f607e79db
commit eeb4f8c61c
1 changed files with 33 additions and 5 deletions
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38
src/service/mod.rs
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@ -9,12 +9,39 @@ mod map_err;
mod map_init_err;
pub use self::and_then::{AndThen, AndThenNewService};
pub use self::fn_service::{FnService, FnNewService};
pub use self::fn_state_service::{FnStateService, FnStateNewService};
pub use self::fn_service::{FnNewService, FnService};
pub use self::fn_state_service::{FnStateNewService, FnStateService};
pub use self::map::{Map, MapNewService};
pub use self::map_err::{MapErr, MapErrNewService};
pub use self::map_init_err::MapInitErr;
pub trait ServiceExt: Service {
fn and_then<F, B>(self, new_service: F) -> AndThen<Self, B>
where
Self: Sized,
F: IntoService<B>,
B: Service<Request = Self::Response, Error = Self::Error>,
{
AndThen::new(self, new_service.into_service())
}
fn map<F, R>(self, f: F) -> Map<Self, F, R>
where
Self: Sized,
F: Fn(Self::Response) -> R,
{
Map::new(self, f)
}
fn map_err<F, E>(self, f: F) -> MapErr<Self, F, E>
where
Self: Sized,
F: Fn(Self::Error) -> E,
{
MapErr::new(self, f)
}
}
pub trait NewServiceExt: NewService {
fn and_then<F, B>(self, new_service: F) -> AndThenNewService<Self, B>
where
@ -54,6 +81,7 @@ pub trait NewServiceExt: NewService {
}
}
impl<T: Service> ServiceExt for T {}
impl<T: NewService> NewServiceExt for T {}
/// Trait for types that can be converted to a Service
@ -62,7 +90,7 @@ where
T: Service,
{
/// Create service
fn into(self) -> T;
fn into_service(self) -> T;
}
/// Trait for types that can be converted to a Service
@ -78,7 +106,7 @@ impl<T> IntoService<T> for T
where
T: Service,
{
fn into(self) -> T {
fn into_service(self) -> T {
self
}
}
@ -97,7 +125,7 @@ where
F: Fn(Req) -> Fut + 'static,
Fut: IntoFuture<Item = Resp, Error = Err>,
{
fn into(self) -> FnService<F, Req, Resp, Err, Fut> {
fn into_service(self) -> FnService<F, Req, Resp, Err, Fut> {
FnService::new(self)
}
}