Binding implicits

binding.scala

trait CacheContext

trait Cache {
    def lookup(query: String)(implicit context: CacheContext): String
    def store(id: String, value: String)(implicit context: CacheContext): Unit
}

class BoundCache(private val delegate: Cache)(implicit private val context: CacheContext) {
    def lookup(query: String): String =
        delegate.lookup(query)
    def store(id: String, value: String): Unit =
        delegate.store(id, value)
}