Example of using Scala implicits to do CssSel type classes

BindingTypeClasses.scala

package eu.getintheloop.snippet

// Author: Timothy Perrett
// Date: 11th April 2011

case class Product(name: String, price: Long)

import net.liftweb.util.CssSel

object Bindings {
  class Bind[T](what: T){
    def bind(implicit bind: DataBinding[T]) = bind(what)
  }
  type DataBinding[T] = T => CssSel
  implicit def asCssSelector[T](in : T): Bind[T] = new Bind[T](in)
}

import Bindings._
import net.liftweb.util.Helpers._

object ProductBinding extends DataBinding[Product]{
  def apply(product: Product): CssSel = 
    ".name" #> product.name
}

class MySnippet {
  private implicit val binder = ProductBinding
  
  def render: CssSel = Product("whatever", 1234L).bind
  // alternative syntax (but requires manual wiring):
  // def render[Product : Bind] = Product("whatever", 1234L).bind
}