Scalaのリフレクションでメソッド一覧をテキスト出力 ref: http://qiita.com/piyo7/items/0218c01b6cd524326908

build.properties

sbt.version=0.13.6

build.sbt

name := "hello_universe"

version := "1.0"

scalaVersion := "2.11.2"

libraryDependencies += "org.scala-lang" % "scala-reflect" % scalaVersion.value

file0.scala

import scala.reflect.runtime.universe._

file1.scala

printMethods[List[Int]]

file2.scala

...
addString(b: StringBuilder): StringBuilder
addString(b: StringBuilder, sep: String): StringBuilder
addString(b: StringBuilder, start: String, sep: String, end: String): StringBuilder
aggregate[B](z: => B)(seqop: (B, A) => B, combop: (B, B) => B): B
andThen[C](k: B => C): PartialFunction[A,C]
apply(n: Int): A
applyOrElse[A1][B1](x: A1, default: A1 => B1): B1
asInstanceOf[T0]: T0
...

HelloUniverse.scala

object HelloUniverse extends App {

  implicit class RichList[T](self: List[T]) {
    def mkStringIfNonEmpty[T](start: String,
                              seq: String,
                              end: String): String =
      if (self.nonEmpty) self.mkString(start, seq, end)
      else ""
  }

  import scala.reflect.runtime.universe._

  def paramToString(param: Symbol): String =
    (if (param.isImplicit) "implicit " else "") +
      param.name +
      ": " +
      param.typeSignature

  def methodToString(method: MethodSymbol): String =
    method.name.decodedName +
      method.typeParams.map(
        _.name
      ).mkStringIfNonEmpty("[", "][", "]") +
      method.paramLists.map(
        _.map(paramToString).mkString(", ")
      ).mkStringIfNonEmpty("(", ")(", ")") +
      ": " +
      method.returnType

  def printMethods[T: TypeTag] =
    typeOf[T].
      members.
      filter(_.isMethod).
      map(_.asMethod).
      map(methodToString).
      toArray.
      sorted.
      foreach(println)

  printMethods[List[Int]]
}