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/* NSC -- new Scala compiler
* Copyright 2005-2013 LAMP/EPFL
* @author Martin Odersky
*/
package scala.tools.nsc
import symtab.Flags
import scala.reflect.internal.util.TableDef
import scala.language.postfixOps
object Phases {
val MaxPhases = 64
/** A class for tracking something about each phase.
*/
class Model[T] {
case class Cell(ph: Phase, value: T) {
def name = ph.name
def id = ph.id
}
val values = new Array[Cell](MaxPhases + 1)
def results = values filterNot (_ == null)
def apply(ph: Phase): T = values(ph.id).value
def update(ph: Phase, value: T): Unit = values(ph.id) = Cell(ph, value)
}
/** A class for recording the elapsed time of each phase in the
* interests of generating a classy and informative table.
*/
class TimingModel extends Model[Long] {
var total: Long = 0
def table() = {
total = results map (_.value) sum;
new Format.Table(results sortBy (-_.value))
}
object Format extends TableDef[Cell] {
>> ("phase" -> (_.name)) >+ " "
<< ("id" -> (_.id)) >+ " "
>> ("ms" -> (_.value)) >+ " "
<< ("share" -> (_.value.toDouble * 100 / total formatted "%.2f"))
}
def formatted = "" + table()
}
}
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