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A Scala library for JSON (de)serialization

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/*
 * Copyright (C) 2016 Eugene Yokota
 *
 * 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 sjsonnew

trait IsoFormats {
  implicit def isolistFormat[A: IsoLList]: JsonFormat[A] =new JsonFormat[A] {
    val iso = implicitly[IsoLList[A]]
    def write[J](x: A, builder: Builder[J]): Unit =
      iso.jsonFormat.write(iso.to(x), builder)
    def read[J](jsOpt: Option[J], unbuilder: Unbuilder[J]): A =
      iso.from(iso.jsonFormat.read(jsOpt, unbuilder))
  }

  implicit def isoStringFormat[A: IsoString]: JsonFormat[A] = new JsonFormat[A] {
    val iso = implicitly[IsoString[A]]
    def write[J](x: A, builder: Builder[J]): Unit =
      builder.writeString(iso.to(x))
    def read[J](jsOpt: Option[J], unbuilder: Unbuilder[J]): A =
      jsOpt match {
        case Some(js) => iso.from(unbuilder.readString(js))
        case None     => iso.from("")
      }
  }

  implicit def isoStringKeyFormat[A](implicit z: IsoString[A]): JsonKeyFormat[A] = JsonKeyFormat(z.to, z.from)
}