在scala 2.11中反映案例类字段的最佳方法？

case class Foo[T,U](stuff:T,more:U,age:Int) {
  val ignore:Boolean = false
}

我开始是这样的：

val symbol = currentMirror.classSymbol(clazz)   // symbol is universe.ClassSymbol
// I want to know about type placeholders T and U
val typeParamArgs = symbol.typeParams.map( tp => tp.name.toString)
if( symbol.isCaseClass ) {
  val tsig = symbol.typeSignature
  println(tsig)
}

好的,此时如果我打印tsig,我看到：

[T,U]scala.AnyRef
        with scala.Product
        with scala.Serializable {
  val stuff: T
  private[this] val stuff: T
  val more: U
  private[this] val more: U
  val age: scala.Int
  private[this] val age: scala.Int
  def <init>(stuff: T,more: U,age: scala.Int): co.blocke.Foo[T,U]
  val ignore: scala.Boolean
  private[this] val ignore: scala.Boolean
  def copy[T,U](stuff: T,U]
  def copy$default$1[T,U]: T @scala.annotation.unchecked.uncheckedVariance
  def copy$default$2[T,U]: U @scala.annotation.unchecked.uncheckedVariance
  def copy$default$3[T,U]: scala.Int @scala.annotation.unchecked.uncheckedVariance
  override def productPrefix: java.lang.String
  def productArity: scala.Int
  def productElement(x$1: scala.Int): scala.Any
  override def productIterator: Iterator[scala.Any]
  def canEqual(x$1: scala.Any): scala.Boolean
  override def hashCode(): scala.Int
  override def toString(): java.lang.String
  override def equals(x$1: scala.Any): scala.Boolean
}

使用< init>？查看中间的那一行那是我想要反省的宣言.它有我需要的东西.

如何选择tsig(universe.Type)来获取有关< init>？的信息？ (我不想要关于’忽略’的信息.)