zio.http.template.IsAttributeValue.scala Maven / Gradle / Ivy
/*
* Copyright 2021 - 2023 Sporta Technologies PVT LTD & 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.template
import scala.language.implicitConversions
/**
* Checks if the value A can be represented as a valid html attribute.
*/
sealed trait IsAttributeValue[-A] {
def apply(a: A): String
}
object IsAttributeValue {
implicit val instanceString: IsAttributeValue[String] = new IsAttributeValue[String] {
override def apply(a: String): String = a
}
implicit val instanceList: IsAttributeValue[Seq[String]] = new IsAttributeValue[Seq[String]] {
override def apply(a: Seq[String]): String = a.mkString(" ")
}
implicit val instanceTuple2Seq: IsAttributeValue[Seq[(String, String)]] =
new IsAttributeValue[Seq[(String, String)]] {
override def apply(a: Seq[(String, String)]): String =
a.map { case (k, v) => s"""${k}:${v}""" }.mkString(";")
}
}