File: Impls_Macros_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 (32 lines) | stat: -rw-r--r-- 820 bytes parent folder | download | duplicates (4)
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
29
30
31
32
import scala.reflect.macros.blackbox.Context

object Impls {
  def foo(c: Context)(x: c.Expr[Int]): c.Expr[Int] = {
    import c.universe._
    val body = Apply(Select(x.tree, TermName("$plus")), List(Literal(Constant(1))))
    c.Expr[Int](body)
  }

  def bar(c: Context)(x: c.Expr[Int]): c.Expr[Int] = {
    import c.universe._
    val body = Apply(Select(x.tree, TermName("$plus")), List(Literal(Constant(2))))
    c.Expr[Int](body)
  }

  def quux(c: Context)(x: c.Expr[Int]): c.Expr[Int] = {
    import c.universe._
    val body = Apply(Select(x.tree, TermName("$plus")), List(Literal(Constant(3))))
    c.Expr[Int](body)
  }
}

object Macros {
  object Shmacros {
    def foo(x: Int): Int = macro Impls.foo
  }
  def bar(x: Int): Int = macro Impls.bar
}

class Macros {
  def quux(x: Int): Int = macro Impls.quux
}