smithy4s.HintMask.scala Maven / Gradle / Ivy
/*
* Copyright 2021-2024 Disney Streaming
*
* Licensed under the Tomorrow Open Source Technology License, Version 1.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://disneystreaming.github.io/TOST-1.0.txt
*
* 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 smithy4s
sealed abstract class HintMask {
def ++(other: HintMask): HintMask
def apply(hints: Hints): Hints
}
object HintMask {
def allAllowed: HintMask = Permissive
def empty: HintMask = apply()
def apply(traits: Set[ShapeId]): HintMask = {
new Impl(traits)
}
def apply(shapeTags: ShapeTag[_]*): HintMask = {
new Impl(shapeTags.map(_.id).toSet)
}
private[this] case object Permissive extends HintMask {
def ++(other: HintMask): HintMask = this
def apply(hints: Hints): Hints = hints
}
private[this] final class Impl(val shapeIds: Set[ShapeId]) extends HintMask {
def ++(other: HintMask): HintMask = other match {
case i: Impl => new Impl(shapeIds ++ i.shapeIds)
case Permissive => Permissive
}
def apply(hints: Hints): Hints = {
val hintsToKeep =
hints.all.filter(h => shapeIds.contains(h.keyId)).toSeq
Hints(hintsToKeep: _*)
}
}
}