Add test for tailcall

DarkDimius · DarkDimius · commit 601b11eb5c8c · 2014-07-22T14:06:01.000+02:00
Test for order of type parameters in recursive call
diff --git a/tests/pos/tailcall/tailcall.scala b/tests/pos/tailcall/tailcall.scala
@@ -3,3 +3,7 @@ class tailcall {
   final def fact(x: Int, acc: Int = 1): Int = if (x == 0) acc else fact(x - shift, acc * x)
   def id[T <: AnyRef](x: T): T = if (x eq null) x else id(x)
 }
+
+class TypedApply[T2]{
+  private def firstDiff[T <: TypedApply[T2]](xs: List[T]): Int = firstDiff(xs)
+}

Original file line number	Diff line number	Diff line change
`@@ -3,3 +3,7 @@ class tailcall {`
`3`	`3`	`final def fact(x: Int, acc: Int = 1): Int = if (x == 0) acc else fact(x - shift, acc * x)`
`4`	`4`	`def id[T <: AnyRef](x: T): T = if (x eq null) x else id(x)`
`5`	`5`	`}`
	`6`	`+`
	`7`	`+class TypedApply[T2]{`
	`8`	`+ private def firstDiff[T <: TypedApply[T2]](xs: List[T]): Int = firstDiff(xs)`
	`9`	`+}`