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runarorama/gist:4496636

Last active December 10, 2015 21:38
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gistfile1.txt
trait True
trait False
def impl(c: Context)(nExpr: c.Expr[Int]): c.Tree = {
import c.universe._
val n: Int = c.eval(c.Expr[Int](c.resetAllAttrs(nExpr.tree)))
if (n >= 3) tq"True" else tq"False"
}
type AtLeastThree(i: Int) = macro impl
val x: AtLeastThree(4) = new True
val y: AtLeastThree(1) = new False
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