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inspectable.scala: 3.methods foreach println
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// originally from http://lousycoder.com/blog/index.php?/archives/91-Scala-Querying-an-objects-fields-and-methods-with-reflection.html | |
package inspectable | |
import scala.Console._ | |
import scala.tools.nsc.util.NameTransformer._ | |
import java.lang.reflect.Modifier._ | |
import java.lang.reflect.{Method, Member, Field} | |
import java.lang.Class | |
object Inspectable | |
{ | |
implicit def any2Inspectable(any : Any) = new Inspectable(any) | |
def apply(any : Any) = new Inspectable(any) | |
} | |
class Inspectable(any: Any) | |
{ | |
def methods = members(_.getDeclaredMethods). | |
map(new InspectedMethod(_)). | |
filter(!_.toString.startsWith("$tag")). | |
sort(_.toString < _.toString) match { | |
case members => | |
new InspectedList(members) | |
} | |
def fields = members(_.getDeclaredFields). | |
map(new InspectedField(_)). | |
filter(_.toString != "MODULE$"). | |
sort(_.toString < _.toString) match { | |
case members => | |
new InspectedList(members) | |
} | |
private def members[T <: Member](f : Class[_] => Iterable[T]) = | |
f(wrapped.getClass).toList.filter(m => !isPrivate(m.getModifiers)) | |
private def wrapped : AnyRef = any match { | |
case x : Byte => byte2Byte(x) | |
case x : Short => short2Short(x) | |
case x : Char => char2Character(x) | |
case x : Int => int2Integer(x) | |
case x : Long => long2Long(x) | |
case x : Float => float2Float(x) | |
case x : Double => double2Double(x) | |
case x : Boolean => boolean2Boolean(x) | |
case x => x.asInstanceOf[AnyRef] | |
} | |
} | |
class InspectedList[T](list : Iterable[T]) extends Iterable[T] | |
{ | |
override def elements = list elements | |
override def toString = list mkString "\n" | |
} | |
class InspectedMember(val member : Member) | |
{ | |
protected def staticInfo = | |
if (isStatic(member.getModifiers)) " <static>" else "" | |
} | |
class InspectedMethod(method : Method) extends InspectedMember(method) | |
{ | |
override def toString = | |
decode(method.toString. | |
replaceFirst("\\).*", ")"). | |
replaceAll("[^(]+\\.", ""). | |
replace("()", "")) + | |
" : " + | |
method.getReturnType.toString + | |
staticInfo | |
} | |
class InspectedField(field : Field) extends InspectedMember(field) | |
{ | |
override def toString = | |
decode(field.toString.replaceFirst("^.*\\.", "")) + | |
" : " + | |
field.getType.toString + | |
staticInfo | |
} |
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scala> import inspectable.Inspectable._ | |
scala> 3.methods foreach println |
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