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/*-------------------------------------------------------------------------*\
** ScalaCheck **
** Copyright (c) 2007-2014 Rickard Nilsson. All rights reserved. **
** http://www.scalacheck.org **
** **
** This software is released under the terms of the Revised BSD License. **
** There is NO WARRANTY. See the file LICENSE for the full text. **
\*------------------------------------------------------------------------ */
package org.scalacheck.util
import collection._
trait Buildable[T,C[_]] {
def builder: mutable.Builder[T,C[T]]
def fromIterable(it: Traversable[T]): C[T] = {
val b = builder
b ++= it
b.result()
}
}
trait Buildable2[T,U,C[_,_]] {
def builder: mutable.Builder[(T,U),C[T,U]]
def fromIterable(it: Traversable[(T,U)]): C[T,U] = {
val b = builder
b ++= it
b.result()
}
}
object Buildable {
import generic.CanBuildFrom
implicit def buildableCanBuildFrom[T, C[_]](implicit c: CanBuildFrom[C[_], T, C[T]]) =
new Buildable[T, C] {
def builder = c.apply
}
import java.util.ArrayList
implicit def buildableArrayList[T] = new Buildable[T,ArrayList] {
def builder = new mutable.Builder[T,ArrayList[T]] {
val al = new ArrayList[T]
def +=(x: T) = {
al.add(x)
this
}
def clear() = al.clear()
def result() = al
}
}
}
object Buildable2 {
implicit def buildableMutableMap[T,U] = new Buildable2[T,U,mutable.Map] {
def builder = mutable.Map.newBuilder
}
implicit def buildableImmutableMap[T,U] = new Buildable2[T,U,immutable.Map] {
def builder = immutable.Map.newBuilder
}
implicit def buildableMap[T,U] = new Buildable2[T,U,Map] {
def builder = Map.newBuilder
}
implicit def buildableImmutableSortedMap[T: Ordering, U] = new Buildable2[T,U,immutable.SortedMap] {
def builder = immutable.SortedMap.newBuilder
}
implicit def buildableSortedMap[T: Ordering, U] = new Buildable2[T,U,SortedMap] {
def builder = SortedMap.newBuilder
}
}
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