sbt/util/appmacro/MixedBuilder.scala

16 lines
548 B
Scala

package sbt
package appmacro
import scala.reflect._
import macros._
/** A builder that uses `TupleN` as the representation for small numbers of inputs (up to `TupleNBuilder.MaxInputs`)
* and `KList` for larger numbers of inputs. This builder cannot handle fewer than 2 inputs.*/
object MixedBuilder extends TupleBuilder
{
def make(c: Context)(mt: c.Type, inputs: Inputs[c.universe.type]): BuilderResult[c.type] =
{
val delegate = if(inputs.size > TupleNBuilder.MaxInputs) KListBuilder else TupleNBuilder
delegate.make(c)(mt, inputs)
}
}