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simplify transform trait

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This commit is contained in:
Nikolay Kim
2019-03-04 19:38:11 -08:00
parent 9bc492cf6c
commit 8c48bf4de7
15 changed files with 288 additions and 825 deletions
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29
actix-service/src/lib.rs
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@@ -20,21 +20,20 @@ mod map_err;
mod map_init_err;
mod then;
mod transform;
mod transform_map_err;
mod transform_map_init_err;
pub use self::and_then::{AndThen, AndThenNewService};
use self::and_then_apply::{AndThenTransform, AndThenTransformNewService};
use self::and_then_apply::AndThenTransformNewService;
use self::and_then_apply_fn::{AndThenApply, AndThenApplyNewService};
pub use self::apply::{Apply, ApplyNewService};
pub use self::fn_service::{fn_cfg_factory, fn_factory, fn_service, FnService};
pub use self::fn_transform::{FnNewTransform, FnTransform};
pub use self::fn_transform::FnTransform;
pub use self::from_err::{FromErr, FromErrNewService};
pub use self::map::{Map, MapNewService};
pub use self::map_err::{MapErr, MapErrNewService};
pub use self::map_init_err::MapInitErr;
pub use self::then::{Then, ThenNewService};
pub use self::transform::{IntoNewTransform, IntoTransform, NewTransform, Transform};
pub use self::transform::{IntoTransform, Transform};
/// An asynchronous function from `Request` to a `Response`.
pub trait Service {
@@ -76,20 +75,6 @@ pub trait Service {
/// An extension trait for `Service`s that provides a variety of convenient
/// adapters
pub trait ServiceExt: Service {
/// Apply tranformation to specified service and use it as a next service in
/// chain.
fn apply<T, T1, B, B1>(self, transform: T1, service: B1) -> AndThenTransform<T, Self, B>
where
Self: Sized,
T: Transform<B, Request = Self::Response>,
T::Error: From<Self::Error>,
T1: IntoTransform<T, B>,
B: Service<Error = Self::Error>,
B1: IntoService<B>,
{
AndThenTransform::new(transform.into_transform(), self, service.into_service())
}
/// Apply function to specified service and use it as a next service in
/// chain.
fn apply_fn<F, B, B1, Out>(self, service: B1, f: F) -> AndThenApply<Self, B, F, Out>
@@ -228,14 +213,14 @@ pub trait NewService<Config = ()> {
) -> AndThenTransformNewService<T, Self, B, Config>
where
Self: Sized,
T: NewTransform<B::Service, Request = Self::Response, InitError = Self::InitError>,
T: Transform<B::Service, Request = Self::Response, InitError = Self::InitError>,
T::Error: From<Self::Error>,
T1: IntoNewTransform<T, B::Service>,
B: NewService<Config, Error = Self::Error, InitError = Self::InitError>,
T1: IntoTransform<T, B::Service>,
B: NewService<Config, InitError = Self::InitError>,
B1: IntoNewService<B, Config>,
{
AndThenTransformNewService::new(
transform.into_new_transform(),
transform.into_transform(),
self,
service.into_new_service(),
)