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zio.http.WithContext.scala Maven / Gradle / Ivy
/*
* Copyright 2023 the ZIO HTTP contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package zio.http
import scala.annotation.implicitNotFound
import zio._
@implicitNotFound("""
The type ${C} does not appear to be one that can be used when requesting a context. The following types may be used when requesting a context:
- Simple Functions: Ctx => Out
- ZIO Functions: Ctx => ZIO[Env, Err, Out]
The types to the function must be specified explicitly: Scala cannot infer them due to the smart constructor.
""")
trait WithContext[C] {
type Env
type Err
type Out
def toZIO(h: => C): ZIO[Env, Err, Out]
}
object WithContext extends WithContextConstructorLowPriorityImplicits1
private[http] trait WithContextConstructorLowPriorityImplicits1 extends WithContextConstructorLowPriorityImplicits2 {
implicit def function2ZIOWithContextConstructor[Env0, Err0, Ctx1, Ctx2, Out0](implicit
tag1: Tag[Ctx1],
tag2: Tag[Ctx2],
): WithContext.Typed[(Ctx1, Ctx2) => ZIO[Env0, Err0, Out0], Env0 with Ctx1 with Ctx2, Err0, Out0] =
new WithContext[(Ctx1, Ctx2) => ZIO[Env0, Err0, Out0]] {
type Env = Env0 with Ctx1 with Ctx2
type Err = Err0
type Out = Out0
type Z = (Ctx1, Ctx2) => ZIO[Env0, Err0, Out0]
def toZIO(z: => Z): ZIO[Env, Err, Out] = {
implicit val tag1_ = tag1.tag
implicit val tag2_ = tag2.tag
implicit val usf = Unsafe.unsafe
ZIO.suspendSucceed {
FiberRef.currentEnvironment.get.flatMap(environment =>
z(environment.unsafe.get[Ctx1](tag1_), environment.unsafe.get[Ctx2](tag2_)),
)
}
}
}
implicit def function3ZIOWithContextConstructor[Env0, Err0, Ctx1, Ctx2, Ctx3, Out0](implicit
tag1: Tag[Ctx1],
tag2: Tag[Ctx2],
tag3: Tag[Ctx3],
): WithContext.Typed[(Ctx1, Ctx2, Ctx3) => ZIO[Env0, Err0, Out0], Env0 with Ctx1 with Ctx2 with Ctx3, Err0, Out0] =
new WithContext[(Ctx1, Ctx2, Ctx3) => ZIO[Env0, Err0, Out0]] {
type Env = Env0 with Ctx1 with Ctx2 with Ctx3
type Err = Err0
type Out = Out0
type Z = (Ctx1, Ctx2, Ctx3) => ZIO[Env0, Err0, Out0]
def toZIO(z: => Z): ZIO[Env, Err, Out] =
ZIO.suspendSucceed {
implicit val tag1_ = tag1.tag
implicit val tag2_ = tag2.tag
implicit val tag3_ = tag3.tag
implicit val usf = Unsafe.unsafe
FiberRef.currentEnvironment.get.flatMap(environment =>
z(
environment.unsafe.get[Ctx1](tag1_),
environment.unsafe.get[Ctx2](tag2_),
environment.unsafe.get[Ctx3](tag3_),
),
)
}
}
implicit def function4ZIOWithContextConstructor[Env0, Err0, Ctx1, Ctx2, Ctx3, Ctx4, Out0](implicit
tag1: Tag[Ctx1],
tag2: Tag[Ctx2],
tag3: Tag[Ctx3],
tag4: Tag[Ctx4],
): WithContext.Typed[(Ctx1, Ctx2, Ctx3, Ctx4) => ZIO[
Env0,
Err0,
Out0,
], Env0 with Ctx1 with Ctx2 with Ctx3 with Ctx4, Err0, Out0] =
new WithContext[(Ctx1, Ctx2, Ctx3, Ctx4) => ZIO[Env0, Err0, Out0]] {
type Env = Env0 with Ctx1 with Ctx2 with Ctx3 with Ctx4
type Err = Err0
type Out = Out0
type Z = (Ctx1, Ctx2, Ctx3, Ctx4) => ZIO[Env0, Err0, Out0]
def toZIO(z: => Z): ZIO[Env, Err, Out] =
ZIO.suspendSucceed {
implicit val tag1_ = tag1.tag
implicit val tag2_ = tag2.tag
implicit val tag3_ = tag3.tag
implicit val tag4_ = tag4.tag
implicit val usf = Unsafe.unsafe
FiberRef.currentEnvironment.get.flatMap(environment =>
z(
environment.unsafe.get[Ctx1](tag1_),
environment.unsafe.get[Ctx2](tag2_),
environment.unsafe.get[Ctx3](tag3_),
environment.unsafe.get[Ctx4](tag4_),
),
)
}
}
implicit def function5ZIOWithContextConstructor[Env0, Err0, Ctx1, Ctx2, Ctx3, Ctx4, Ctx5, Out0](implicit
tag1: Tag[Ctx1],
tag2: Tag[Ctx2],
tag3: Tag[Ctx3],
tag4: Tag[Ctx4],
tag5: Tag[Ctx5],
): WithContext.Typed[(Ctx1, Ctx2, Ctx3, Ctx4, Ctx5) => ZIO[
Env0,
Err0,
Out0,
], Env0 with Ctx1 with Ctx2 with Ctx3 with Ctx4 with Ctx5, Err0, Out0] =
new WithContext[(Ctx1, Ctx2, Ctx3, Ctx4, Ctx5) => ZIO[Env0, Err0, Out0]] {
type Env = Env0 with Ctx1 with Ctx2 with Ctx3 with Ctx4 with Ctx5
type Err = Err0
type Out = Out0
type Z = (Ctx1, Ctx2, Ctx3, Ctx4, Ctx5) => ZIO[Env0, Err0, Out0]
def toZIO(z: => Z): ZIO[Env, Err, Out] =
ZIO.suspendSucceed {
implicit val tag1_ = tag1.tag
implicit val tag2_ = tag2.tag
implicit val tag3_ = tag3.tag
implicit val tag4_ = tag4.tag
implicit val tag5_ = tag5.tag
implicit val usf = Unsafe.unsafe
FiberRef.currentEnvironment.get.flatMap(environment =>
z(
environment.unsafe.get[Ctx1](tag1_),
environment.unsafe.get[Ctx2](tag2_),
environment.unsafe.get[Ctx3](tag3_),
environment.unsafe.get[Ctx4](tag4_),
environment.unsafe.get[Ctx5](tag5_),
),
)
}
}
}
private[http] trait WithContextConstructorLowPriorityImplicits2 extends WithContextConstructorLowPriorityImplicits3 {
implicit def functionZIOWithContextConstructor[Env0, Err0, Ctx0, Out0](implicit
tag: Tag[Ctx0],
): WithContext.Typed[Ctx0 => ZIO[Env0, Err0, Out0], Env0 with Ctx0, Err0, Out0] =
new WithContext[Ctx0 => ZIO[Env0, Err0, Out0]] {
type Env = Env0 with Ctx0
type Err = Err0
type Out = Out0
type Z = Ctx0 => ZIO[Env0, Err0, Out0]
def toZIO(z: => Z): ZIO[Env, Err, Out] = {
implicit val tag_ = tag.tag
implicit val usf = Unsafe.unsafe
ZIO.suspendSucceed {
FiberRef.currentEnvironment.get.flatMap(environment => z(environment.unsafe.get[Ctx0](tag_)))
}
}
}
}
private[http] trait WithContextConstructorLowPriorityImplicits3 extends WithContextConstructorLowPriorityImplicits4 {
implicit def function2ValueWithContextConstructor[Err0, Ctx1, Ctx2, Out0](implicit
tag1: Tag[Ctx1],
tag2: Tag[Ctx2],
): WithContext.Typed[(Ctx1, Ctx2) => Out0, Ctx1 with Ctx2, Err0, Out0] =
new WithContext[(Ctx1, Ctx2) => Out0] {
type Env = Ctx1 with Ctx2
type Err = Err0
type Out = Out0
type Z = (Ctx1, Ctx2) => Out0
def toZIO(z: => Z): ZIO[Env, Err, Out] =
ZIO.suspendSucceed {
implicit val tag1_ = tag1.tag
implicit val tag2_ = tag2.tag
implicit val usf = Unsafe.unsafe
FiberRef.currentEnvironment.get.map(environment =>
z(environment.unsafe.get[Ctx1](tag1_), environment.unsafe.get[Ctx2](tag2_)),
)
}
}
implicit def function3ValueWithContextConstructor[Err0, Ctx1, Ctx2, Ctx3, Out0](implicit
tag1: Tag[Ctx1],
tag2: Tag[Ctx2],
tag3: Tag[Ctx3],
): WithContext.Typed[(Ctx1, Ctx2, Ctx3) => Out0, Ctx1 with Ctx2 with Ctx3, Err0, Out0] =
new WithContext[(Ctx1, Ctx2, Ctx3) => Out0] {
type Env = Ctx1 with Ctx2 with Ctx3
type Err = Err0
type Out = Out0
type Z = (Ctx1, Ctx2, Ctx3) => Out0
def toZIO(z: => Z): ZIO[Env, Err, Out] =
ZIO.suspendSucceed {
implicit val tag1_ = tag1.tag
implicit val tag2_ = tag2.tag
implicit val tag3_ = tag3.tag
implicit val usf = Unsafe.unsafe
FiberRef.currentEnvironment.get.map(environment =>
z(
environment.unsafe.get[Ctx1](tag1_),
environment.unsafe.get[Ctx2](tag2_),
environment.unsafe.get[Ctx3](tag3_),
),
)
}
}
implicit def function4ValueWithContextConstructor[Err0, Ctx1, Ctx2, Ctx3, Ctx4, Out0](implicit
tag1: Tag[Ctx1],
tag2: Tag[Ctx2],
tag3: Tag[Ctx3],
tag4: Tag[Ctx4],
): WithContext.Typed[(Ctx1, Ctx2, Ctx3, Ctx4) => Out0, Ctx1 with Ctx2 with Ctx3 with Ctx4, Err0, Out0] =
new WithContext[(Ctx1, Ctx2, Ctx3, Ctx4) => Out0] {
type Env = Ctx1 with Ctx2 with Ctx3 with Ctx4
type Err = Err0
type Out = Out0
type Z = (Ctx1, Ctx2, Ctx3, Ctx4) => Out0
def toZIO(z: => Z): ZIO[Env, Err, Out] =
ZIO.suspendSucceed {
implicit val tag1_ = tag1.tag
implicit val tag2_ = tag2.tag
implicit val tag3_ = tag3.tag
implicit val tag4_ = tag4.tag
implicit val usf = Unsafe.unsafe
FiberRef.currentEnvironment.get.map(environment =>
z(
environment.unsafe.get[Ctx1](tag1_),
environment.unsafe.get[Ctx2](tag2_),
environment.unsafe.get[Ctx3](tag3_),
environment.unsafe.get[Ctx4](tag4_),
),
)
}
}
implicit def function5ValueWithContextConstructor[Err0, Ctx1, Ctx2, Ctx3, Ctx4, Ctx5, Out0](implicit
tag1: Tag[Ctx1],
tag2: Tag[Ctx2],
tag3: Tag[Ctx3],
tag4: Tag[Ctx4],
tag5: Tag[Ctx5],
): WithContext.Typed[
(Ctx1, Ctx2, Ctx3, Ctx4, Ctx5) => Out0,
Ctx1 with Ctx2 with Ctx3 with Ctx4 with Ctx5,
Err0,
Out0,
] =
new WithContext[(Ctx1, Ctx2, Ctx3, Ctx4, Ctx5) => Out0] {
type Env = Ctx1 with Ctx2 with Ctx3 with Ctx4 with Ctx5
type Err = Err0
type Out = Out0
type Z = (Ctx1, Ctx2, Ctx3, Ctx4, Ctx5) => Out0
def toZIO(z: => Z): ZIO[Env, Err, Out] =
ZIO.suspendSucceed {
implicit val tag1_ = tag1.tag
implicit val tag2_ = tag2.tag
implicit val tag3_ = tag3.tag
implicit val tag4_ = tag4.tag
implicit val tag5_ = tag5.tag
implicit val usf = Unsafe.unsafe
FiberRef.currentEnvironment.get.map(environment =>
z(
environment.unsafe.get[Ctx1](tag1_),
environment.unsafe.get[Ctx2](tag2_),
environment.unsafe.get[Ctx3](tag3_),
environment.unsafe.get[Ctx4](tag4_),
environment.unsafe.get[Ctx5](tag5_),
),
)
}
}
}
private[http] trait WithContextConstructorLowPriorityImplicits4 {
type Typed[C, Env0, Err0, Out0] = WithContext[C] {
type Env = Env0; type Err = Err0; type Out = Out0
}
implicit def functionWithContextConstructor[Ctx: Tag, Out0]: WithContext.Typed[Ctx => Out0, Ctx, Nothing, Out0] =
new WithContext[Ctx => Out0] {
type Env = Ctx
type Err = Nothing
type Out = Out0
type Z = Ctx => Out0
def toZIO(z: => Z): ZIO[Env, Err, Out] =
ZIO.serviceWith[Ctx] { in1 => z(in1) }
}
}
