import scala.reflect.macros.blackbox.Context object Impls { def impl(c: Context)(tag: String, x: c.Expr[_]) = { import c.{prefix => prefix} import c.universe._ val body = Apply(Select(Ident(definitions.PredefModule), TermName("println")), List(Literal(Constant(tag)), Literal(Constant(prefix.toString)), x.tree)) c.Expr[Unit](body) } def fooObjectString(c: Context)(x: c.Expr[_]) = impl(c)("fooObjectString", x) def fooObjectInt(c: Context)(x: c.Expr[_]) = impl(c)("fooObjectInt", x) def fooClassString(c: Context)(x: c.Expr[_]) = impl(c)("fooClassString", x) def fooClassInt(c: Context)(x: c.Expr[_]) = impl(c)("fooClassInt", x) }