Updated Proposal: Revisiting Implicits

[tarsa]

Implicit Conversions

Implicit conversions are defined by given instances of the scala.Conversion class. This class is defined in package scala as follows:

abstract class Conversion[-T, +U] extends (T => U)

For example, here is an implicit conversion from String to Token :

given Conversion[String, Token] {
  def apply(str: String): Token = new KeyWord(str)
}

Using an alias this can be expressed more concisely as:

given Conversion[String, Token] = new KeyWord(_)

Isn’t abstract class too heavyweight for a simple conversion? At least a trait would allow for the lightweight Java 8 lambdas encoding. Or maybe Java 8 lambdas can work with abstract classes too?