Duck

Converts an instance of type T into an instance of a trait of type D using the structural information of D and T to extract the methods of D from T.

Example:

import com.swoval.reflect.Duck
def using[T, R](t: => T)(f: T => R)(implicit duck: Duck[T, AutoCloseable]) = {
  val instance = t
  try f(instance) finally duck(instance).close()
}
class Foo {
  def doSomeWork(): Unit = println("Doing work!")
  def close(): Unit = println("Closing foo.")
}
using(new Foo)(f => f.doSomeWork()) // prints "Doing work!\nClosing foo."

T: the generic type that is being converted to D
D: A generic type that must represent a trait (or java interface)

Linear Supertypes

Any

Known Subclasses

WeakDuck

Abstract Value Members

abstract def apply(t: T): D

Duck types an instance of T to a trait D if T structurally implements D.
abstract def getClass(): Class[_]

Definition Classes
Any

Concrete Value Members

final def !=(arg0: Any): Boolean

Definition Classes
Any
final def ##(): Int

Definition Classes
Any
final def ==(arg0: Any): Boolean

Definition Classes
Any
final def asInstanceOf[T0]: T0

Definition Classes
Any
def equals(arg0: Any): Boolean

Definition Classes
Any
def hashCode(): Int

Definition Classes
Any
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
def toString(): String

Definition Classes
Any

Related Docs: object Duck | package reflect

trait Duck[T, D] extends Any

Abstract Value Members

abstract def apply(t: T): D

abstract def getClass(): Class[_]

Concrete Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def equals(arg0: Any): Boolean

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

def toString(): String

Inherited from Any

Ungrouped