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
|
import scala.reflect.makro.Context
object Macros {
def impl_with_macros_enabled(c: Context) = {
import c.mirror._
val mr = Select(Select(Select(Ident(newTermName("scala")), newTermName("reflect")), newTermName("package")), newTermName("mirror"))
val tree1 = Apply(Select(mr, newTermName("reify")), List(Apply(Select(Ident(newTermName("scala")), newTermName("Array")), List(Literal(Constant(2))))))
val ttree1 = c.typeCheck(tree1, withMacrosDisabled = false)
c.literal(ttree1.toString)
}
def foo_with_macros_enabled = macro impl_with_macros_enabled
def impl_with_macros_disabled(c: Context) = {
import c.mirror._
val mrPkg = staticModule("scala.reflect.package")
val mrSym = selectTerm(mrPkg, "mirror")
val NullaryMethodType(mrTpe) = mrSym.typeSignature
val mr = newFreeTerm("mr", mrTpe, scala.reflect.mirror)
val tree2 = Apply(Select(Ident(mr), newTermName("reify")), List(Apply(Select(Ident(newTermName("scala")), newTermName("Array")), List(Literal(Constant(2))))))
val ttree2 = c.typeCheck(tree2, withMacrosDisabled = true)
c.literal(ttree2.toString)
}
def foo_with_macros_disabled = macro impl_with_macros_disabled
}
|
