This gist is part of a blog post. Check it out at:
http://jasonrudolph.com/blog/2011/08/09/programming-achievements-how-to-level-up-as-a-developer
trait Enum { //DIY enum type | |
import java.util.concurrent.atomic.AtomicReference //Concurrency paranoia | |
type EnumVal <: Value //This is a type that needs to be found in the implementing class | |
def withName(name: String): Option[EnumVal] = values.find(_.name == name) | |
def withNameIgnoringCase(name: String): Option[EnumVal] = values.find(_.name.equalsIgnoreCase(name)) | |
private def lazyName(requestingInstance: EnumVal): String = { | |
getClass().getMethods() |
/** | |
* Part Zero : 10:15 Saturday Night | |
* | |
* (In which we will see how to let the type system help you handle failure)... | |
* | |
* First let's define a domain. (All the following requires scala 2.9.x and scalaz 6.0) | |
*/ | |
import scalaz._ | |
import Scalaz._ |
class A | |
class A2 extends A | |
class B | |
trait M[X] | |
// | |
// Upper Type Bound | |
// | |
def upperTypeBound[AA <: A](x: AA): A = x |
This gist is part of a blog post. Check it out at:
http://jasonrudolph.com/blog/2011/08/09/programming-achievements-how-to-level-up-as-a-developer