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object Test extends App {
import collection._
val xs: SeqView[(String, Int), Seq[_]] = List("x").view.zip(Stream.from(0))
println(xs)
val ys = List(1, 2, 3).view map { x => println("mapping "+x); x + 1 }
println("ys defined")
println(ys.head)
println(ys.tail)
println(ys(2))
println(ys)
println(ys.force)
val zs = Array(1, 2, 3).view
val as: SeqView[Int, Array[Int]] = zs map (_ + 1)
val bs: Array[Int] = as.force
val cs = zs.reverse
cs(0) += 1
assert(cs.force.deep == Array(4, 2, 1).deep)
assert(zs(2) == 4)
assert(bs.deep == Array(2, 3, 4).deep)
}
/* crash confirmed.
2.8 regression: CCE when zipping list projection with stream
Reported by: szeiger Owned by: odersky
Priority: normal Component: Standard Library
Keywords: collections, zip Cc:
Fixed in version:
Description
Welcome to Scala version 2.8.0.r18784-b20090925021043 (Java HotSpot(TM) Client VM, Java 1.6.0_11).
Type in expressions to have them evaluated.
Type :help for more information.
scala> List("x").view.zip(Stream.from(0))List("x").view.zip(Stream.from(0))
java.lang.ClassCastException: scala.collection.generic.IterableViewTemplate$$anon$8 cannot be cast to scala.collection.generic.SequenceView
at .<init>(<console>:5)
at .<clinit>(<console>)
at RequestResult$.<init>(<console>:4)
at RequestResult$.<clinit>(<console>)
at RequestResult$result(<console>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.Nat...
*/
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