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    <p>There is (at least one) another way, even if it is not too nice and not really type safe:</p> <pre><code>import scala.reflect.Manifest object Reified { def foo[T](p:List[T])(implicit m: Manifest[T]) = { def stringList(l: List[String]) { println("Strings") } def intList(l: List[Int]) { println("Ints") } val StringClass = classOf[String] val IntClass = classOf[Int] m.erasure match { case StringClass =&gt; stringList(p.asInstanceOf[List[String]]) case IntClass =&gt; intList(p.asInstanceOf[List[Int]]) case _ =&gt; error("???") } } def main(args: Array[String]) { foo(List("String")) foo(List(1, 2, 3)) } } </code></pre> <p>The implicit manifest paramenter can be used to "reify" the erased type and thus hack around erasure. You can learn a bit more about it in many blog posts,e.g. <a href="http://www.scala-blogs.org/2008/10/manifests-reified-types.html" rel="nofollow noreferrer">this one</a>.</p> <p>What happens is that the manifest param can give you back what T was before erasure. Then a simple dispatch based on T to the various real implementation does the rest.</p> <p>Probably there is a nicer way to do the pattern matching, but I haven't seen it yet. What people usually do is matching on m.toString, but I think keeping classes is a bit cleaner (even if it's a bit more verbose). Unfortunately the documentation of Manifest is not too detailed, maybe it also has something that could simplify it. </p> <p>A big disadvantage of it is that it's not really type safe: foo will be happy with any T, if you can't handle it you will have a problem. I guess it could be worked around with some constraints on T, but it would further complicate it. </p> <p>And of course this whole stuff is also not too nice, I'm not sure if it worth doing it, especially if you are lazy ;-)</p>
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