blob: bc6a9d343efc5bac208b31a460d40f2d0c3934b4 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
package pkg {
import scala.reflect.macros.BlackboxContext
import scala.language.experimental.macros
object Macros {
def impl[T: c.WeakTypeTag](c: BlackboxContext) = {
import c.universe._
val sym = c.weakTypeOf[T].typeSymbol
val g = c.universe.asInstanceOf[scala.tools.nsc.Global]
c.Expr[Boolean](Literal(Constant(g.currentRun.compiles(sym.asInstanceOf[g.Symbol]))))
}
def compiles[T] = macro impl[T]
}
}
import scala.reflect.runtime.universe._
import scala.reflect.runtime.{universe => ru}
import scala.tools.reflect.ToolBox
object Test extends App {
val cm = ru.runtimeMirror(getClass.getClassLoader)
val toolbox = cm.mkToolBox()
toolbox.eval(toolbox.parse("""{
class C
println(pkg.Macros.compiles[C])
println(pkg.Macros.compiles[Object])
}"""))
}
|