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Add Tuple.{apply, unapply} #9042

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7 changes: 7 additions & 0 deletions library/src/scala/Tuple.scala
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Expand Up @@ -157,6 +157,13 @@ object Tuple {
*/
type Split[T <: Tuple, N <: Int] = (Take[T, N], Drop[T, N])


/** Empty tuple */
def apply(): Unit = ()

/** Matches an empty tuple. */
def unapply(x: Any): Boolean = x.isInstanceOf[Unit]

/** Convert an array into a tuple of unknown arity and types */
def fromArray[T](xs: Array[T]): Tuple = {
val xs2 = xs match {
Expand Down
2 changes: 1 addition & 1 deletion tests/neg-strict/unchecked-patterns.scala
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Expand Up @@ -5,7 +5,7 @@ object Test {

val x :: xs = List(1, 2, 3) // error
val (1, c) = (1, 2) // error
val 1 *: cs = 1 *: () // error
val 1 *: cs = 1 *: Tuple() // error

val (_: Int | _: Any) = ??? : Any // error

Expand Down
2 changes: 1 addition & 1 deletion tests/pos/i6507.scala
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Expand Up @@ -3,7 +3,7 @@ object Test {

inline def s2 = 48 *: s3

inline def s3 = 49 *: ()
inline def s3 = 49 *: Tuple()

s1
}
16 changes: 8 additions & 8 deletions tests/run-custom-args/tuple-cons.scala
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Expand Up @@ -11,7 +11,7 @@ object Test {
assert(t2.tail.tail.head == 2)

t2 match {
case e1 *: e2 *: e3 *: () =>
case e1 *: e2 *: e3 *: Tuple() =>
assert(e1 == 0)
assert(e2 == 1)
assert(e3 == 2)
Expand All @@ -25,7 +25,7 @@ object Test {
assert(t3.tail.tail.tail.head == 2)

t3 match {
case e1 *: e2 *: e3 *: e4 *: () =>
case e1 *: e2 *: e3 *: e4 *: Tuple() =>
assert(e1 == -1)
assert(e2 == 0)
assert(e3 == 1)
Expand All @@ -35,10 +35,10 @@ object Test {
type I = Int

// 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
val t20: *:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,Unit]]]]]]]]]]]]]]]]]]]] = 1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: ()
val t20: *:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,Unit]]]]]]]]]]]]]]]]]]]] = 1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: Tuple()

t20 match {
case e1 *: e2 *: e3 *: e4 *: e5 *: e6 *: e7 *: e8 *: e9 *: e10 *: e11 *: e12 *: e13 *: e14 *: e15 *: e16 *: e17 *: e18 *: e19 *: e20 *: () =>
case e1 *: e2 *: e3 *: e4 *: e5 *: e6 *: e7 *: e8 *: e9 *: e10 *: e11 *: e12 *: e13 *: e14 *: e15 *: e16 *: e17 *: e18 *: e19 *: e20 *: Tuple() =>
assert(e1 == 1)
assert(e2 == 2)
assert(e3 == 3)
Expand All @@ -65,7 +65,7 @@ object Test {
val t21: *:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,Unit]]]]]]]]]]]]]]]]]]]]] = 21 *: t20

t21 match {
case e21 *: e1 *: e2 *: e3 *: e4 *: e5 *: e6 *: e7 *: e8 *: e9 *: e10 *: e11 *: e12 *: e13 *: e14 *: e15 *: e16 *: e17 *: e18 *: e19 *: e20 *: () =>
case e21 *: e1 *: e2 *: e3 *: e4 *: e5 *: e6 *: e7 *: e8 *: e9 *: e10 *: e11 *: e12 *: e13 *: e14 *: e15 *: e16 *: e17 *: e18 *: e19 *: e20 *: Tuple() =>
assert(e1 == 1)
assert(e2 == 2)
assert(e3 == 3)
Expand Down Expand Up @@ -93,7 +93,7 @@ object Test {
val t22: *:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,Unit]]]]]]]]]]]]]]]]]]]]]] = 22 *: t21

t22 match {
case e22 *: e21 *: e1 *: e2 *: e3 *: e4 *: e5 *: e6 *: e7 *: e8 *: e9 *: e10 *: e11 *: e12 *: e13 *: e14 *: e15 *: e16 *: e17 *: e18 *: e19 *: e20 *: () =>
case e22 *: e21 *: e1 *: e2 *: e3 *: e4 *: e5 *: e6 *: e7 *: e8 *: e9 *: e10 *: e11 *: e12 *: e13 *: e14 *: e15 *: e16 *: e17 *: e18 *: e19 *: e20 *: Tuple() =>
assert(e1 == 1)
assert(e2 == 2)
assert(e3 == 3)
Expand Down Expand Up @@ -122,7 +122,7 @@ object Test {
val t23: *:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,Unit]]]]]]]]]]]]]]]]]]]]]]] = 23 *: t22

t23 match {
case e23 *: e22 *: e21 *: e1 *: e2 *: e3 *: e4 *: e5 *: e6 *: e7 *: e8 *: e9 *: e10 *: e11 *: e12 *: e13 *: e14 *: e15 *: e16 *: e17 *: e18 *: e19 *: e20 *: () =>
case e23 *: e22 *: e21 *: e1 *: e2 *: e3 *: e4 *: e5 *: e6 *: e7 *: e8 *: e9 *: e10 *: e11 *: e12 *: e13 *: e14 *: e15 *: e16 *: e17 *: e18 *: e19 *: e20 *: Tuple() =>
assert(e1 == 1)
assert(e2 == 2)
assert(e3 == 3)
Expand Down Expand Up @@ -152,7 +152,7 @@ object Test {
val t24: *:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,*:[I,Unit]]]]]]]]]]]]]]]]]]]]]]]] = 24 *: t23

t24 match {
case e24 *: e23 *: e22 *: e21 *: e1 *: e2 *: e3 *: e4 *: e5 *: e6 *: e7 *: e8 *: e9 *: e10 *: e11 *: e12 *: e13 *: e14 *: e15 *: e16 *: e17 *: e18 *: e19 *: e20 *: () =>
case e24 *: e23 *: e22 *: e21 *: e1 *: e2 *: e3 *: e4 *: e5 *: e6 *: e7 *: e8 *: e9 *: e10 *: e11 *: e12 *: e13 *: e14 *: e15 *: e16 *: e17 *: e18 *: e19 *: e20 *: Tuple() =>
assert(e1 == 1)
assert(e2 == 2)
assert(e3 == 3)
Expand Down
100 changes: 50 additions & 50 deletions tests/run-deep-subtype/Tuple-apply.scala
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Expand Up @@ -112,59 +112,59 @@ object Test {
assert(24 == (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24).apply(23))
assert(25 == (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25).apply(24))

assert(1 == (1 *: ()).apply(0))
assert(1 == (1 *: 2 *: ()).apply(0))
assert(1 == (1 *: 2 *: 3 *: ()).apply(0))
assert(1 == (1 *: 2 *: 3 *: 4 *: ()).apply(0))
assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: ()).apply(0))
assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: ()).apply(0))
assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: ()).apply(0))
assert(1 == (1 *: Tuple()).apply(0))
assert(1 == (1 *: 2 *: Tuple()).apply(0))
assert(1 == (1 *: 2 *: 3 *: Tuple()).apply(0))
assert(1 == (1 *: 2 *: 3 *: 4 *: Tuple()).apply(0))
assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: Tuple()).apply(0))
assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: Tuple()).apply(0))
assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: Tuple()).apply(0))
// FIXME performance
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: ()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: ()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: ()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: ()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: ()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: ()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: ()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: ()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: ()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: ()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: ()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: ()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: ()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: 21 *: ()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: 21 *: 22 *: ()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: 21 *: 22 *: 23 *: ()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: 21 *: 22 *: 23 *: 24 *: ()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: 21 *: 22 *: 23 *: 24 *: 25 *: ()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: Tuple()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: Tuple()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: Tuple()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: Tuple()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: Tuple()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: Tuple()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: Tuple()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: Tuple()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: Tuple()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: Tuple()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: Tuple()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: Tuple()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: Tuple()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: 21 *: Tuple()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: 21 *: 22 *: Tuple()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: 21 *: 22 *: 23 *: Tuple()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: 21 *: 22 *: 23 *: 24 *: Tuple()).apply(0))
// assert(1 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: 21 *: 22 *: 23 *: 24 *: 25 *: Tuple()).apply(0))

assert(1 == (1 *: ()).apply(0))
assert(2 == (1 *: 2 *: ()).apply(1))
assert(3 == (1 *: 2 *: 3 *: ()).apply(2))
assert(4 == (1 *: 2 *: 3 *: 4 *: ()).apply(3))
assert(5 == (1 *: 2 *: 3 *: 4 *: 5 *: ()).apply(4))
assert(6 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: ()).apply(5))
assert(7 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: ()).apply(6))
assert(1 == (1 *: Tuple()).apply(0))
assert(2 == (1 *: 2 *: Tuple()).apply(1))
assert(3 == (1 *: 2 *: 3 *: Tuple()).apply(2))
assert(4 == (1 *: 2 *: 3 *: 4 *: Tuple()).apply(3))
assert(5 == (1 *: 2 *: 3 *: 4 *: 5 *: Tuple()).apply(4))
assert(6 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: Tuple()).apply(5))
assert(7 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: Tuple()).apply(6))
// FIXME performance
// assert(8 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: ()).apply(7))
// assert(9 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: ()).apply(8))
// assert(10 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: ()).apply(9))
// assert(11 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: ()).apply(10))
// assert(12 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: ()).apply(11))
// assert(13 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: ()).apply(12))
// assert(14 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: ()).apply(13))
// assert(15 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: ()).apply(14))
// assert(16 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: ()).apply(15))
// assert(17 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: ()).apply(16))
// assert(18 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: ()).apply(17))
// assert(19 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: ()).apply(18))
// assert(20 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: ()).apply(19))
// assert(21 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: 21 *: ()).apply(20))
// assert(22 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: 21 *: 22 *: ()).apply(21))
// assert(23 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: 21 *: 22 *: 23 *: ()).apply(22))
// assert(24 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: 21 *: 22 *: 23 *: 24 *: ()).apply(23))
// assert(25 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: 21 *: 22 *: 23 *: 24 *: 25 *: ()).apply(24))
// assert(8 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: Tuple()).apply(7))
// assert(9 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: Tuple()).apply(8))
// assert(10 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: Tuple()).apply(9))
// assert(11 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: Tuple()).apply(10))
// assert(12 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: Tuple()).apply(11))
// assert(13 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: Tuple()).apply(12))
// assert(14 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: Tuple()).apply(13))
// assert(15 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: Tuple()).apply(14))
// assert(16 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: Tuple()).apply(15))
// assert(17 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: Tuple()).apply(16))
// assert(18 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: Tuple()).apply(17))
// assert(19 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: Tuple()).apply(18))
// assert(20 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: Tuple()).apply(19))
// assert(21 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: 21 *: Tuple()).apply(20))
// assert(22 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: 21 *: 22 *: Tuple()).apply(21))
// assert(23 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: 21 *: 22 *: 23 *: Tuple()).apply(22))
// assert(24 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: 21 *: 22 *: 23 *: 24 *: Tuple()).apply(23))
// assert(25 == (1 *: 2 *: 3 *: 4 *: 5 *: 6 *: 7 *: 8 *: 9 *: 10 *: 11 *: 12 *: 13 *: 14 *: 15 *: 16 *: 17 *: 18 *: 19 *: 20 *: 21 *: 22 *: 23 *: 24 *: 25 *: Tuple()).apply(24))

}
}
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