scalaでstructural typingでreflection

Scala: How do I dynamically instantiate an object and invoke a method using reflection?

にstructural typingを使ったサンプルが載ってたのでメモ

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1. class Foo {  
2.   def hello(name: String): String = "Hello there, %s".format(name)  
3. }  
4.   
5. object FooMain {  
6.   
7.   def main(args: Array[String]) {  
8.     val foo  = Class.forName("Foo").newInstance.asInstanceOf[{ def hello(name: String): String }]  
9.     println(foo.hello("Walter")) // prints "Hello there, Walter"  
10.   }  
11. }  

class Foo {
  def hello(name: String): String = "Hello there, %s".format(name)
}

object FooMain {

  def main(args: Array[String]) {
    val foo  = Class.forName("Foo").newInstance.asInstanceOf[{ def hello(name: String): String }]
    println(foo.hello("Walter")) // prints "Hello there, Walter"
  }
}