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util: Add BoxService layer helpers #503

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merged 7 commits into from
Dec 29, 2020
Merged

util: Add BoxService layer helpers #503

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3dc85f6
util: Add BoxService layers
olix0r Dec 29, 2020
fca9291
fix import
olix0r Dec 29, 2020
b1483ec
Update tower/src/util/boxed/sync.rs
olix0r Dec 29, 2020
770bc4e
Update tower/src/util/boxed/sync.rs
olix0r Dec 29, 2020
3175102
Update tower/src/util/boxed/unsync.rs
olix0r Dec 29, 2020
e4b9afd
Update tower/src/util/boxed/unsync.rs
olix0r Dec 29, 2020
64fddfe
fixup imports
olix0r Dec 29, 2020
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10 changes: 10 additions & 0 deletions tower/src/util/boxed/sync.rs
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
use tower_layer::{layer_fn, LayerFn};
use tower_service::Service;

use std::fmt;
Expand Down Expand Up @@ -39,6 +40,15 @@ impl<T, U, E> BoxService<T, U, E> {
let inner = Box::new(Boxed { inner });
BoxService { inner }
}

/// Returns a [`Layer`] for wrapping a [`Service`] in a `BoxService` middleware.
pub fn layer<S>() -> LayerFn<fn(S) -> Self>
where
S: Service<T, Response = U, Error = E> + Send + 'static,
S::Future: Send + 'static,
{
layer_fn(Self::new)
}
}

impl<T, U, E> Service<T> for BoxService<T, U, E> {
Expand Down
10 changes: 10 additions & 0 deletions tower/src/util/boxed/unsync.rs
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
use tower_layer::{layer_fn, LayerFn};
use tower_service::Service;

use std::fmt;
Expand Down Expand Up @@ -33,6 +34,15 @@ impl<T, U, E> UnsyncBoxService<T, U, E> {
let inner = Box::new(UnsyncBoxed { inner });
UnsyncBoxService { inner }
}

/// Returns a [`Layer`] for wrapping a [`Service`] in an `UnsyncBoxService` middleware.
pub fn layer<S>() -> LayerFn<fn(S) -> Self>
where
S: Service<T, Response = U, Error = E> + 'static,
S::Future: 'static,
{
layer_fn(Self::new)
}
}

impl<T, U, E> Service<T> for UnsyncBoxService<T, U, E> {
Expand Down