implementing Implicit Conversions in Scala 2.13 - Conflicting Type Class Instances
I'm building a feature where I'm dealing with I'm working on a project and hit a roadblock... I'm working on a project and hit a roadblock. I'm running into a question with implicit conversions in Scala 2.13 when trying to create a type class for serialization. I have two different type class instances for the same type, which leads to ambiguous implicit conversion errors. Here's a simplified version of what I've done: ```scala trait JsonSerializer[T] { def serialize(value: T): String } implicit val stringSerializer: JsonSerializer[String] = new JsonSerializer[String] { def serialize(value: String): String = s"\"$value\"" } implicit val intSerializer: JsonSerializer[Int] = new JsonSerializer[Int] { def serialize(value: Int): String = value.toString } // This should work val json: String = serialize("hello") // Attempting to create a new serializer for a custom case class case class User(name: String, age: Int) implicit val userSerializer: JsonSerializer[User] = new JsonSerializer[User] { def serialize(user: User): String = s"{ ${stringSerializer.serialize(user.name)}, ${intSerializer.serialize(user.age)} }" } // Trying to serialize User instance val userJson: String = serialize(User("Alice", 30)) ``` When I run this, I get the following behavior: ``` behavior: ambiguous implicit values: both value stringSerializer and value intSerializer match expected type JsonSerializer[T] ``` It seems like the compiler is confused about which serializer to use. I've tried to refactor the code and ensure that the implicit resolution is clear, but I need to seem to get around this scenario. I've also looked into using `import` statements to control visibility, but that hasn't helped either. How can I resolve this ambiguity? Is there a recommended approach to structure my type classes to avoid these kinds of conflicts in Scala 2.13? Any guidance would be appreciated! For context: I'm using Scala on Ubuntu. I'd really appreciate any guidance on this. I'm working on a application that needs to handle this. The stack includes Scala and several other technologies. Any examples would be super helpful. What's the best practice here? I'm working on a service that needs to handle this. Any advice would be much appreciated. This is my first time working with Scala 3.11. Any pointers in the right direction? This is happening in both development and production on Debian. Cheers for any assistance!