Seed random generator for more constant results

Antoine Brunner · Antoine Brunner · commit e4dfcf5f3f7c · 2019-12-12T18:39:30.000+01:00
diff --git a/bench-run/src/main/scala/dotty/tools/benchmarks/tuples/TupleOps.scala b/bench-run/src/main/scala/dotty/tools/benchmarks/tuples/TupleOps.scala
@@ -19,7 +19,8 @@ class TupleOps {
     for (i <- 1 until 10)
       tuple2 = s"elem$i" *: tuple2
 
-    tuple3 = Tuple.fromArray(Random.shuffle(1 to 15).toArray)
+    val rand = new Random(12345)
+    tuple3 = Tuple.fromArray(rand.shuffle(1 to 15).toArray)
   }
 
   def tupleFlatMap(tuple: Tuple, f: [A] => A => Tuple): Tuple = {
diff --git a/library/src/scala/runtime/DynamicTuple.scala b/library/src/scala/runtime/DynamicTuple.scala
@@ -240,7 +240,7 @@ object DynamicTuple {
     res.asInstanceOf[Result]
   }
 
-  def dynamicApply[This <: NonEmptyTuple, N <: Int] (self: This, n: Int): Elem[This, N] = {
+  def dynamicApply[This <: NonEmptyTuple, N <: Int] (self: This, n: N): Elem[This, N] = {
     type Result = Elem[This, N]
     val res = (self: Any) match {
       case self: Unit => throw new IndexOutOfBoundsException(n.toString)

Original file line number	Diff line number	Diff line change
`@@ -19,7 +19,8 @@ class TupleOps {`
`19`	`19`	`for (i <- 1 until 10)`
`20`	`20`	`tuple2 = s"elem$i" *: tuple2`
`21`	`21`
`22`		`- tuple3 = Tuple.fromArray(Random.shuffle(1 to 15).toArray)`
	`22`	`+ val rand = new Random(12345)`
	`23`	`+ tuple3 = Tuple.fromArray(rand.shuffle(1 to 15).toArray)`
`23`	`24`	`}`
`24`	`25`
`25`	`26`	`def tupleFlatMap(tuple: Tuple, f: [A] => A => Tuple): Tuple = {`
Original file line number	Diff line number	Diff line change
`@@ -240,7 +240,7 @@ object DynamicTuple {`
`240`	`240`	`res.asInstanceOf[Result]`
`241`	`241`	`}`
`242`	`242`
`243`		`- def dynamicApply[This <: NonEmptyTuple, N <: Int] (self: This, n: Int): Elem[This, N] = {`
	`243`	`+ def dynamicApply[This <: NonEmptyTuple, N <: Int] (self: This, n: N): Elem[This, N] = {`
`244`	`244`	`type Result = Elem[This, N]`
`245`	`245`	`val res = (self: Any) match {`
`246`	`246`	`case self: Unit => throw new IndexOutOfBoundsException(n.toString)`