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JsonContext.scala
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JsonContext.scala
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/*
* Copyright 2023 Lucas Satabin
*
* 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 fs2
package data
package json
import cats.Show
import cats.syntax.all._
/** A JSON trace context, positioning the current location in the JSON value
* starting from the root.
*/
sealed trait JsonContext
object JsonContext {
case object Root extends JsonContext
case class Key(name: String, parent: JsonContext) extends JsonContext
case class Index(idx: Long, parent: JsonContext) extends JsonContext
implicit object JsonContextShow extends Show[JsonContext] {
def show(t: JsonContext): String = t match {
case Root => "/"
case Key(name, Root) => show"/$name"
case Key(name, parent) => show"$parent/$name"
case Index(idx, Root) => show"/$idx"
case Index(idx, parent) => show"$parent/$idx"
}
}
}