File: t6187.scala

package info (click to toggle)
scala 2.11.12-5
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 62,828 kB
  • sloc: javascript: 28,808; java: 13,415; xml: 3,250; sh: 1,620; python: 756; makefile: 38; awk: 36; ansic: 6
file content (18 lines) | stat: -rw-r--r-- 619 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
import scala.tools.partest.ReplTest

object Test extends ReplTest {
  override def code = """
import scala.language.experimental.macros, scala.reflect.macros.blackbox.Context
def macroImpl[T: c.WeakTypeTag](c: Context)(t: c.Expr[T]): c.Expr[List[T]] = {
  val r = c.universe.reify { List(t.splice) }
  c.Expr[List[T]]( c.untypecheck(r.tree) )
}
def demo[T](t: T): List[T] = macro macroImpl[T]
def m[T](t: T): List[List[T]] =
  demo( List((t,true)) collect { case (x,true) => x } )
m(List(1))
// Showing we haven't added unreachable warnings
List(1) collect { case x => x }
List("") collect { case x => x }
  """.trim
}