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move config to generic type

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This commit is contained in:
Nikolay Kim 2018-08-25 14:46:05 -07:00
parent 89b8da724b
commit 3dbaef3ec1
1 changed files with 89 additions and 76 deletions
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165
src/configurable.rs
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@ -12,7 +12,7 @@ use service::{AndThen, FnService, MapErr};
/// accepts new TCP streams, obtains a new `Service` value using the /// accepts new TCP streams, obtains a new `Service` value using the
/// `NewConfigurableService` trait, and uses that new `Service` value to /// `NewConfigurableService` trait, and uses that new `Service` value to
/// process inbound requests on that new TCP stream. /// process inbound requests on that new TCP stream.
pub trait NewConfigurableService { pub trait NewConfigurableService<C> {
/// Requests handled by the service /// Requests handled by the service
type Request; type Request;
@ -29,9 +29,6 @@ pub trait NewConfigurableService {
Error = Self::Error, Error = Self::Error,
>; >;
/// Pipeline configuration
type Config;
/// Errors produced while building a service. /// Errors produced while building a service.
type InitError; type InitError;
@ -39,23 +36,23 @@ pub trait NewConfigurableService {
type Future: Future<Item = Self::Service, Error = Self::InitError>; type Future: Future<Item = Self::Service, Error = Self::InitError>;
/// Create and return a new service value asynchronously. /// Create and return a new service value asynchronously.
fn new_service(&self, Self::Config) -> Self::Future; fn new_service(&self, C) -> Self::Future;
fn and_then<F, B>(self, new_service: F) -> AndThenNewConfigurableService<Self, B> fn and_then<F, B>(self, new_service: F) -> AndThenNewConfigurableService<Self, B, C>
where where
Self: Sized, Self: Sized,
F: IntoNewConfigurableService<B>, F: IntoNewConfigurableService<B, C>,
B: NewConfigurableService< B: NewConfigurableService<
C,
Request = Self::Response, Request = Self::Response,
Error = Self::Error, Error = Self::Error,
Config = Self::Config,
InitError = Self::InitError, InitError = Self::InitError,
>, >,
{ {
AndThenNewConfigurableService::new(self, new_service) AndThenNewConfigurableService::new(self, new_service)
} }
fn map_err<F, E>(self, f: F) -> MapErrNewConfigurableService<Self, F, E> fn map_err<F, E>(self, f: F) -> MapErrNewConfigurableService<Self, F, E, C>
where where
Self: Sized, Self: Sized,
F: Fn(Self::Error) -> E, F: Fn(Self::Error) -> E,
@ -63,7 +60,7 @@ pub trait NewConfigurableService {
MapErrNewConfigurableService::new(self, f) MapErrNewConfigurableService::new(self, f)
} }
fn map_init_err<F, E>(self, f: F) -> MapInitErr<Self, F, E> fn map_init_err<F, E>(self, f: F) -> MapInitErr<Self, F, E, C>
where where
Self: Sized, Self: Sized,
F: Fn(Self::InitError) -> E, F: Fn(Self::InitError) -> E,
@ -73,17 +70,17 @@ pub trait NewConfigurableService {
} }
/// Trait for types that can be converted to a Service /// Trait for types that can be converted to a Service
pub trait IntoNewConfigurableService<T> pub trait IntoNewConfigurableService<T, C>
where where
T: NewConfigurableService, T: NewConfigurableService<C>,
{ {
/// Create service /// Create service
fn into_new_service(self) -> T; fn into_new_service(self) -> T;
} }
impl<T> IntoNewConfigurableService<T> for T impl<T, C> IntoNewConfigurableService<T, C> for T
where where
T: NewConfigurableService, T: NewConfigurableService<C>,
{ {
fn into_new_service(self) -> T { fn into_new_service(self) -> T {
self self
@ -121,7 +118,7 @@ where
} }
impl<F, S, Err, Fut, Cfg> impl<F, S, Err, Fut, Cfg>
IntoNewConfigurableService<Fn2NewConfigurableService<F, S, Err, Fut, Cfg>> for F IntoNewConfigurableService<Fn2NewConfigurableService<F, S, Err, Fut, Cfg>, Cfg> for F
where where
S: Service, S: Service,
F: Fn(Cfg) -> Fut + 'static, F: Fn(Cfg) -> Fut + 'static,
@ -143,7 +140,7 @@ where
} }
} }
impl<F, S, Err, Fut, Cfg> NewConfigurableService impl<F, S, Err, Fut, Cfg> NewConfigurableService<Cfg>
for Fn2NewConfigurableService<F, S, Err, Fut, Cfg> for Fn2NewConfigurableService<F, S, Err, Fut, Cfg>
where where
S: Service, S: Service,
@ -154,7 +151,6 @@ where
type Response = S::Response; type Response = S::Response;
type Error = S::Error; type Error = S::Error;
type Service = S; type Service = S;
type Config = Cfg;
type InitError = Err; type InitError = Err;
type Future = Fut::Future; type Future = Fut::Future;
@ -194,7 +190,7 @@ where
} }
} }
impl<F, Req, Resp, Err, IErr, Fut, Cfg> NewConfigurableService impl<F, Req, Resp, Err, IErr, Fut, Cfg> NewConfigurableService<Cfg>
for FnNewConfigurableService<F, Req, Resp, Err, IErr, Fut, Cfg> for FnNewConfigurableService<F, Req, Resp, Err, IErr, Fut, Cfg>
where where
F: Fn(Req) -> Fut + Clone, F: Fn(Req) -> Fut + Clone,
@ -204,7 +200,6 @@ where
type Response = Resp; type Response = Resp;
type Error = Err; type Error = Err;
type Service = FnService<F, Req, Resp, Err, Fut>; type Service = FnService<F, Req, Resp, Err, Fut>;
type Config = Cfg;
type InitError = IErr; type InitError = IErr;
type Future = FutureResult<Self::Service, Self::InitError>; type Future = FutureResult<Self::Service, Self::InitError>;
@ -214,7 +209,7 @@ where
} }
impl<F, Req, Resp, Err, IErr, Fut, Cfg> impl<F, Req, Resp, Err, IErr, Fut, Cfg>
IntoNewConfigurableService<FnNewConfigurableService<F, Req, Resp, Err, IErr, Fut, Cfg>> IntoNewConfigurableService<FnNewConfigurableService<F, Req, Resp, Err, IErr, Fut, Cfg>, Cfg>
for F for F
where where
F: Fn(Req) -> Fut + Clone + 'static, F: Fn(Req) -> Fut + Clone + 'static,
@ -237,46 +232,51 @@ where
} }
/// `AndThenNewConfigurableService` new service combinator /// `AndThenNewConfigurableService` new service combinator
pub struct AndThenNewConfigurableService<A, B> { pub struct AndThenNewConfigurableService<A, B, C>
where
A: NewConfigurableService<C>,
B: NewConfigurableService<C>
{
a: A, a: A,
b: B, b: B,
c: marker::PhantomData<C>,
} }
impl<A, B> AndThenNewConfigurableService<A, B> impl<A, B, C> AndThenNewConfigurableService<A, B, C>
where where
A: NewConfigurableService, A: NewConfigurableService<C>,
B: NewConfigurableService, B: NewConfigurableService<C>,
{ {
/// Create new `AndThen` combinator /// Create new `AndThen` combinator
pub fn new<F: IntoNewConfigurableService<B>>(a: A, f: F) -> Self { pub fn new<F: IntoNewConfigurableService<B, C>>(a: A, f: F) -> Self {
Self { Self {
a, a,
b: f.into_new_service(), b: f.into_new_service(),
c: marker::PhantomData,
} }
} }
} }
impl<A, B> NewConfigurableService for AndThenNewConfigurableService<A, B> impl<A, B, C> NewConfigurableService<C> for AndThenNewConfigurableService<A, B, C>
where where
A: NewConfigurableService< A: NewConfigurableService<
C,
Response = B::Request, Response = B::Request,
Config = B::Config,
InitError = B::InitError, InitError = B::InitError,
>, >,
A::Config: Clone,
A::Error: Into<B::Error>, A::Error: Into<B::Error>,
B: NewConfigurableService, B: NewConfigurableService<C>,
C: Clone,
{ {
type Request = A::Request; type Request = A::Request;
type Response = B::Response; type Response = B::Response;
type Error = B::Error; type Error = B::Error;
type Service = AndThen<A::Service, B::Service>; type Service = AndThen<A::Service, B::Service>;
type Config = A::Config;
type InitError = A::InitError; type InitError = A::InitError;
type Future = AndThenNewConfigurableServiceFuture<A, B>; type Future = AndThenNewConfigurableServiceFuture<A, B, C>;
fn new_service(&self, cfg: A::Config) -> Self::Future { fn new_service(&self, cfg: C) -> Self::Future {
AndThenNewConfigurableServiceFuture::new( AndThenNewConfigurableServiceFuture::new(
self.a.new_service(cfg.clone()), self.a.new_service(cfg.clone()),
self.b.new_service(cfg), self.b.new_service(cfg),
@ -284,35 +284,37 @@ where
} }
} }
impl<A, B> Clone for AndThenNewConfigurableService<A, B> impl<A, B, C> Clone for AndThenNewConfigurableService<A, B, C>
where where
A: NewConfigurableService<Response = B::Request, InitError = B::InitError> + Clone, A: NewConfigurableService<C, Response = B::Request, InitError = B::InitError> + Clone,
A::Error: Into<B::Error>, A::Error: Into<B::Error>,
B: NewConfigurableService + Clone, B: NewConfigurableService<C> + Clone,
{ {
fn clone(&self) -> Self { fn clone(&self) -> Self {
Self { Self {
a: self.a.clone(), a: self.a.clone(),
b: self.b.clone(), b: self.b.clone(),
c: marker::PhantomData,
} }
} }
} }
pub struct AndThenNewConfigurableServiceFuture<A, B> pub struct AndThenNewConfigurableServiceFuture<A, B, C>
where where
A: NewConfigurableService, A: NewConfigurableService<C>,
B: NewConfigurableService, B: NewConfigurableService<C>,
{ {
fut_b: B::Future, fut_b: B::Future,
fut_a: A::Future, fut_a: A::Future,
a: Option<A::Service>, a: Option<A::Service>,
b: Option<B::Service>, b: Option<B::Service>,
c: marker::PhantomData<C>,
} }
impl<A, B> AndThenNewConfigurableServiceFuture<A, B> impl<A, B, C> AndThenNewConfigurableServiceFuture<A, B, C>
where where
A: NewConfigurableService, A: NewConfigurableService<C>,
B: NewConfigurableService, B: NewConfigurableService<C>,
{ {
fn new(fut_a: A::Future, fut_b: B::Future) -> Self { fn new(fut_a: A::Future, fut_b: B::Future) -> Self {
AndThenNewConfigurableServiceFuture { AndThenNewConfigurableServiceFuture {
@ -320,15 +322,16 @@ where
fut_b, fut_b,
a: None, a: None,
b: None, b: None,
c: marker::PhantomData,
} }
} }
} }
impl<A, B> Future for AndThenNewConfigurableServiceFuture<A, B> impl<A, B, C> Future for AndThenNewConfigurableServiceFuture<A, B, C>
where where
A: NewConfigurableService, A: NewConfigurableService<C>,
A::Error: Into<B::Error>, A::Error: Into<B::Error>,
B: NewConfigurableService<Request = A::Response, InitError = A::InitError>, B: NewConfigurableService<C, Request = A::Response, InitError = A::InitError>,
{ {
type Item = AndThen<A::Service, B::Service>; type Item = AndThen<A::Service, B::Service>;
type Error = B::InitError; type Error = B::InitError;
@ -354,15 +357,19 @@ where
} }
/// `MapErrNewService` new service combinator /// `MapErrNewService` new service combinator
pub struct MapErrNewConfigurableService<A, F, E> { pub struct MapErrNewConfigurableService<A, F, E, C>
where
A: NewConfigurableService<C>
{
a: A, a: A,
f: F, f: F,
e: marker::PhantomData<E>, e: marker::PhantomData<E>,
c: marker::PhantomData<C>,
} }
impl<A, F, E> MapErrNewConfigurableService<A, F, E> impl<A, F, E, C> MapErrNewConfigurableService<A, F, E, C>
where where
A: NewConfigurableService, A: NewConfigurableService<C>,
F: Fn(A::Error) -> E, F: Fn(A::Error) -> E,
{ {
/// Create new `MapErr` new service instance /// Create new `MapErr` new service instance
@ -371,13 +378,14 @@ where
a, a,
f, f,
e: marker::PhantomData, e: marker::PhantomData,
c: marker::PhantomData,
} }
} }
} }
impl<A, F, E> Clone for MapErrNewConfigurableService<A, F, E> impl<A, F, E, C> Clone for MapErrNewConfigurableService<A, F, E, C>
where where
A: NewConfigurableService + Clone, A: NewConfigurableService<C> + Clone,
F: Fn(A::Error) -> E + Clone, F: Fn(A::Error) -> E + Clone,
{ {
fn clone(&self) -> Self { fn clone(&self) -> Self {
@ -385,13 +393,14 @@ where
a: self.a.clone(), a: self.a.clone(),
f: self.f.clone(), f: self.f.clone(),
e: marker::PhantomData, e: marker::PhantomData,
c: marker::PhantomData,
} }
} }
} }
impl<A, F, E> NewConfigurableService for MapErrNewConfigurableService<A, F, E> impl<A, F, E, C> NewConfigurableService<C> for MapErrNewConfigurableService<A, F, E, C>
where where
A: NewConfigurableService + Clone, A: NewConfigurableService<C> + Clone,
F: Fn(A::Error) -> E + Clone, F: Fn(A::Error) -> E + Clone,
{ {
type Request = A::Request; type Request = A::Request;
@ -399,27 +408,26 @@ where
type Error = E; type Error = E;
type Service = MapErr<A::Service, F, E>; type Service = MapErr<A::Service, F, E>;
type Config = A::Config;
type InitError = A::InitError; type InitError = A::InitError;
type Future = MapErrNewConfigurableServiceFuture<A, F, E>; type Future = MapErrNewConfigurableServiceFuture<A, F, E, C>;
fn new_service(&self, cfg: Self::Config) -> Self::Future { fn new_service(&self, cfg: C) -> Self::Future {
MapErrNewConfigurableServiceFuture::new(self.a.new_service(cfg), self.f.clone()) MapErrNewConfigurableServiceFuture::new(self.a.new_service(cfg), self.f.clone())
} }
} }
pub struct MapErrNewConfigurableServiceFuture<A, F, E> pub struct MapErrNewConfigurableServiceFuture<A, F, E, C>
where where
A: NewConfigurableService, A: NewConfigurableService<C>,
F: Fn(A::Error) -> E, F: Fn(A::Error) -> E,
{ {
fut: A::Future, fut: A::Future,
f: F, f: F,
} }
impl<A, F, E> MapErrNewConfigurableServiceFuture<A, F, E> impl<A, F, E, C> MapErrNewConfigurableServiceFuture<A, F, E, C>
where where
A: NewConfigurableService, A: NewConfigurableService<C>,
F: Fn(A::Error) -> E, F: Fn(A::Error) -> E,
{ {
fn new(fut: A::Future, f: F) -> Self { fn new(fut: A::Future, f: F) -> Self {
@ -427,9 +435,9 @@ where
} }
} }
impl<A, F, E> Future for MapErrNewConfigurableServiceFuture<A, F, E> impl<A, F, E, C> Future for MapErrNewConfigurableServiceFuture<A, F, E, C>
where where
A: NewConfigurableService, A: NewConfigurableService<C>,
F: Fn(A::Error) -> E + Clone, F: Fn(A::Error) -> E + Clone,
{ {
type Item = MapErr<A::Service, F, E>; type Item = MapErr<A::Service, F, E>;
@ -445,15 +453,19 @@ where
} }
/// `MapInitErr` service combinator /// `MapInitErr` service combinator
pub struct MapInitErr<A, F, E> { pub struct MapInitErr<A, F, E, C>
where
A: NewConfigurableService<C>
{
a: A, a: A,
f: F, f: F,
e: marker::PhantomData<E>, e: marker::PhantomData<E>,
c: marker::PhantomData<C>,
} }
impl<A, F, E> MapInitErr<A, F, E> impl<A, F, E, C> MapInitErr<A, F, E, C>
where where
A: NewConfigurableService, A: NewConfigurableService<C>,
F: Fn(A::InitError) -> E, F: Fn(A::InitError) -> E,
{ {
/// Create new `MapInitErr` combinator /// Create new `MapInitErr` combinator
@ -462,13 +474,14 @@ where
a, a,
f, f,
e: marker::PhantomData, e: marker::PhantomData,
c: marker::PhantomData,
} }
} }
} }
impl<A, F, E> Clone for MapInitErr<A, F, E> impl<A, F, E, C> Clone for MapInitErr<A, F, E, C>
where where
A: NewConfigurableService + Clone, A: NewConfigurableService<C> + Clone,
F: Fn(A::InitError) -> E + Clone, F: Fn(A::InitError) -> E + Clone,
{ {
fn clone(&self) -> Self { fn clone(&self) -> Self {
@ -476,13 +489,14 @@ where
a: self.a.clone(), a: self.a.clone(),
f: self.f.clone(), f: self.f.clone(),
e: marker::PhantomData, e: marker::PhantomData,
c: marker::PhantomData,
} }
} }
} }
impl<A, F, E> NewConfigurableService for MapInitErr<A, F, E> impl<A, F, E, C> NewConfigurableService<C> for MapInitErr<A, F, E, C>
where where
A: NewConfigurableService, A: NewConfigurableService<C>,
F: Fn(A::InitError) -> E + Clone, F: Fn(A::InitError) -> E + Clone,
{ {
type Request = A::Request; type Request = A::Request;
@ -490,27 +504,26 @@ where
type Error = A::Error; type Error = A::Error;
type Service = A::Service; type Service = A::Service;
type Config = A::Config;
type InitError = E; type InitError = E;
type Future = MapInitErrFuture<A, F, E>; type Future = MapInitErrFuture<A, F, E, C>;
fn new_service(&self, cfg: Self::Config) -> Self::Future { fn new_service(&self, cfg: C) -> Self::Future {
MapInitErrFuture::new(self.a.new_service(cfg), self.f.clone()) MapInitErrFuture::new(self.a.new_service(cfg), self.f.clone())
} }
} }
pub struct MapInitErrFuture<A, F, E> pub struct MapInitErrFuture<A, F, E, C>
where where
A: NewConfigurableService, A: NewConfigurableService<C>,
F: Fn(A::InitError) -> E, F: Fn(A::InitError) -> E,
{ {
f: F, f: F,
fut: A::Future, fut: A::Future,
} }
impl<A, F, E> MapInitErrFuture<A, F, E> impl<A, F, E, C> MapInitErrFuture<A, F, E, C>
where where
A: NewConfigurableService, A: NewConfigurableService<C>,
F: Fn(A::InitError) -> E, F: Fn(A::InitError) -> E,
{ {
fn new(fut: A::Future, f: F) -> Self { fn new(fut: A::Future, f: F) -> Self {
@ -518,9 +531,9 @@ where
} }
} }
impl<A, F, E> Future for MapInitErrFuture<A, F, E> impl<A, F, E, C> Future for MapInitErrFuture<A, F, E, C>
where where
A: NewConfigurableService, A: NewConfigurableService<C>,
F: Fn(A::InitError) -> E, F: Fn(A::InitError) -> E,
{ {
type Item = A::Service; type Item = A::Service;