File: macro_1.scala

package info (click to toggle)
scala 2.11.12-6
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 62,924 kB
  • sloc: javascript: 28,808; java: 13,415; xml: 3,135; sh: 1,620; python: 756; makefile: 38; awk: 36; ansic: 6
file content (16 lines) | stat: -rw-r--r-- 376 bytes parent folder | download | duplicates (4) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
 
import language.experimental.macros


object Macro {

  import reflect.macros.blackbox.Context
  def impl(c: Context)(): c.Tree = {
    import c.universe._
    val tree = q"""class C; new C"""
    val tree1 = c.typecheck(tree)
    val tpe = tree1.tpe
    val tree2 = c.typecheck(c.untypecheck(tree1))
    q"""$tree2.asInstanceOf[$tpe]"""
  }
  def apply(): Any = macro impl
}