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Merge remote-tracking branch 'origin/master' into lucio/standard-policy2
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@LucioFranco
LucioFranco committed Oct 12, 2022
2 parents a3cdc6f + 87fa8ef commit 716f9d0
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Showing 9 changed files with 332 additions and 44 deletions.
1 change: 1 addition & 0 deletions tower-layer/src/lib.rs
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Expand Up @@ -19,6 +19,7 @@
mod identity;
mod layer_fn;
mod stack;
mod tuple;

pub use self::{
identity::Identity,
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330 changes: 330 additions & 0 deletions tower-layer/src/tuple.rs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,330 @@
use crate::Layer;

impl<S> Layer<S> for () {
type Service = S;

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

impl<S, L1> Layer<S> for (L1,)
where
L1: Layer<S>,
{
type Service = L1::Service;

fn layer(&self, service: S) -> Self::Service {
let (l1,) = self;
l1.layer(service)
}
}

impl<S, L1, L2> Layer<S> for (L1, L2)
where
L1: Layer<L2::Service>,
L2: Layer<S>,
{
type Service = L1::Service;

fn layer(&self, service: S) -> Self::Service {
let (l1, l2) = self;
l1.layer(l2.layer(service))
}
}

impl<S, L1, L2, L3> Layer<S> for (L1, L2, L3)
where
L1: Layer<L2::Service>,
L2: Layer<L3::Service>,
L3: Layer<S>,
{
type Service = L1::Service;

fn layer(&self, service: S) -> Self::Service {
let (l1, l2, l3) = self;
l1.layer((l2, l3).layer(service))
}
}

impl<S, L1, L2, L3, L4> Layer<S> for (L1, L2, L3, L4)
where
L1: Layer<L2::Service>,
L2: Layer<L3::Service>,
L3: Layer<L4::Service>,
L4: Layer<S>,
{
type Service = L1::Service;

fn layer(&self, service: S) -> Self::Service {
let (l1, l2, l3, l4) = self;
l1.layer((l2, l3, l4).layer(service))
}
}

impl<S, L1, L2, L3, L4, L5> Layer<S> for (L1, L2, L3, L4, L5)
where
L1: Layer<L2::Service>,
L2: Layer<L3::Service>,
L3: Layer<L4::Service>,
L4: Layer<L5::Service>,
L5: Layer<S>,
{
type Service = L1::Service;

fn layer(&self, service: S) -> Self::Service {
let (l1, l2, l3, l4, l5) = self;
l1.layer((l2, l3, l4, l5).layer(service))
}
}

impl<S, L1, L2, L3, L4, L5, L6> Layer<S> for (L1, L2, L3, L4, L5, L6)
where
L1: Layer<L2::Service>,
L2: Layer<L3::Service>,
L3: Layer<L4::Service>,
L4: Layer<L5::Service>,
L5: Layer<L6::Service>,
L6: Layer<S>,
{
type Service = L1::Service;

fn layer(&self, service: S) -> Self::Service {
let (l1, l2, l3, l4, l5, l6) = self;
l1.layer((l2, l3, l4, l5, l6).layer(service))
}
}

impl<S, L1, L2, L3, L4, L5, L6, L7> Layer<S> for (L1, L2, L3, L4, L5, L6, L7)
where
L1: Layer<L2::Service>,
L2: Layer<L3::Service>,
L3: Layer<L4::Service>,
L4: Layer<L5::Service>,
L5: Layer<L6::Service>,
L6: Layer<L7::Service>,
L7: Layer<S>,
{
type Service = L1::Service;

fn layer(&self, service: S) -> Self::Service {
let (l1, l2, l3, l4, l5, l6, l7) = self;
l1.layer((l2, l3, l4, l5, l6, l7).layer(service))
}
}

impl<S, L1, L2, L3, L4, L5, L6, L7, L8> Layer<S> for (L1, L2, L3, L4, L5, L6, L7, L8)
where
L1: Layer<L2::Service>,
L2: Layer<L3::Service>,
L3: Layer<L4::Service>,
L4: Layer<L5::Service>,
L5: Layer<L6::Service>,
L6: Layer<L7::Service>,
L7: Layer<L8::Service>,
L8: Layer<S>,
{
type Service = L1::Service;

fn layer(&self, service: S) -> Self::Service {
let (l1, l2, l3, l4, l5, l6, l7, l8) = self;
l1.layer((l2, l3, l4, l5, l6, l7, l8).layer(service))
}
}

impl<S, L1, L2, L3, L4, L5, L6, L7, L8, L9> Layer<S> for (L1, L2, L3, L4, L5, L6, L7, L8, L9)
where
L1: Layer<L2::Service>,
L2: Layer<L3::Service>,
L3: Layer<L4::Service>,
L4: Layer<L5::Service>,
L5: Layer<L6::Service>,
L6: Layer<L7::Service>,
L7: Layer<L8::Service>,
L8: Layer<L9::Service>,
L9: Layer<S>,
{
type Service = L1::Service;

fn layer(&self, service: S) -> Self::Service {
let (l1, l2, l3, l4, l5, l6, l7, l8, l9) = self;
l1.layer((l2, l3, l4, l5, l6, l7, l8, l9).layer(service))
}
}

impl<S, L1, L2, L3, L4, L5, L6, L7, L8, L9, L10> Layer<S>
for (L1, L2, L3, L4, L5, L6, L7, L8, L9, L10)
where
L1: Layer<L2::Service>,
L2: Layer<L3::Service>,
L3: Layer<L4::Service>,
L4: Layer<L5::Service>,
L5: Layer<L6::Service>,
L6: Layer<L7::Service>,
L7: Layer<L8::Service>,
L8: Layer<L9::Service>,
L9: Layer<L10::Service>,
L10: Layer<S>,
{
type Service = L1::Service;

fn layer(&self, service: S) -> Self::Service {
let (l1, l2, l3, l4, l5, l6, l7, l8, l9, l10) = self;
l1.layer((l2, l3, l4, l5, l6, l7, l8, l9, l10).layer(service))
}
}

impl<S, L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11> Layer<S>
for (L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11)
where
L1: Layer<L2::Service>,
L2: Layer<L3::Service>,
L3: Layer<L4::Service>,
L4: Layer<L5::Service>,
L5: Layer<L6::Service>,
L6: Layer<L7::Service>,
L7: Layer<L8::Service>,
L8: Layer<L9::Service>,
L9: Layer<L10::Service>,
L10: Layer<L11::Service>,
L11: Layer<S>,
{
type Service = L1::Service;

fn layer(&self, service: S) -> Self::Service {
let (l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11) = self;
l1.layer((l2, l3, l4, l5, l6, l7, l8, l9, l10, l11).layer(service))
}
}

impl<S, L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12> Layer<S>
for (L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12)
where
L1: Layer<L2::Service>,
L2: Layer<L3::Service>,
L3: Layer<L4::Service>,
L4: Layer<L5::Service>,
L5: Layer<L6::Service>,
L6: Layer<L7::Service>,
L7: Layer<L8::Service>,
L8: Layer<L9::Service>,
L9: Layer<L10::Service>,
L10: Layer<L11::Service>,
L11: Layer<L12::Service>,
L12: Layer<S>,
{
type Service = L1::Service;

fn layer(&self, service: S) -> Self::Service {
let (l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12) = self;
l1.layer((l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12).layer(service))
}
}

impl<S, L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12, L13> Layer<S>
for (L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12, L13)
where
L1: Layer<L2::Service>,
L2: Layer<L3::Service>,
L3: Layer<L4::Service>,
L4: Layer<L5::Service>,
L5: Layer<L6::Service>,
L6: Layer<L7::Service>,
L7: Layer<L8::Service>,
L8: Layer<L9::Service>,
L9: Layer<L10::Service>,
L10: Layer<L11::Service>,
L11: Layer<L12::Service>,
L12: Layer<L13::Service>,
L13: Layer<S>,
{
type Service = L1::Service;

fn layer(&self, service: S) -> Self::Service {
let (l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13) = self;
l1.layer((l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13).layer(service))
}
}

impl<S, L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12, L13, L14> Layer<S>
for (L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12, L13, L14)
where
L1: Layer<L2::Service>,
L2: Layer<L3::Service>,
L3: Layer<L4::Service>,
L4: Layer<L5::Service>,
L5: Layer<L6::Service>,
L6: Layer<L7::Service>,
L7: Layer<L8::Service>,
L8: Layer<L9::Service>,
L9: Layer<L10::Service>,
L10: Layer<L11::Service>,
L11: Layer<L12::Service>,
L12: Layer<L13::Service>,
L13: Layer<L14::Service>,
L14: Layer<S>,
{
type Service = L1::Service;

fn layer(&self, service: S) -> Self::Service {
let (l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13, l14) = self;
l1.layer((l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13, l14).layer(service))
}
}

#[rustfmt::skip]
impl<S, L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12, L13, L14, L15> Layer<S>
for (L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12, L13, L14, L15)
where
L1: Layer<L2::Service>,
L2: Layer<L3::Service>,
L3: Layer<L4::Service>,
L4: Layer<L5::Service>,
L5: Layer<L6::Service>,
L6: Layer<L7::Service>,
L7: Layer<L8::Service>,
L8: Layer<L9::Service>,
L9: Layer<L10::Service>,
L10: Layer<L11::Service>,
L11: Layer<L12::Service>,
L12: Layer<L13::Service>,
L13: Layer<L14::Service>,
L14: Layer<L15::Service>,
L15: Layer<S>,
{
type Service = L1::Service;

fn layer(&self, service: S) -> Self::Service {
let (l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13, l14, l15) = self;
l1.layer((l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13, l14, l15).layer(service))
}
}

#[rustfmt::skip]
impl<S, L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12, L13, L14, L15, L16> Layer<S>
for (L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12, L13, L14, L15, L16)
where
L1: Layer<L2::Service>,
L2: Layer<L3::Service>,
L3: Layer<L4::Service>,
L4: Layer<L5::Service>,
L5: Layer<L6::Service>,
L6: Layer<L7::Service>,
L7: Layer<L8::Service>,
L8: Layer<L9::Service>,
L9: Layer<L10::Service>,
L10: Layer<L11::Service>,
L11: Layer<L12::Service>,
L12: Layer<L13::Service>,
L13: Layer<L14::Service>,
L14: Layer<L15::Service>,
L15: Layer<L16::Service>,
L16: Layer<S>,
{
type Service = L1::Service;

fn layer(&self, service: S) -> Self::Service {
let (l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13, l14, l15, l16) = self;
l1.layer((l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13, l14, l15, l16).layer(service))
}
}
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