Initial commit: Go 1.23 release state

test/typeparam/issue50264.go

@@ -0,0 +1,45 @@
+// run
+
+// Copyright 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+type hello struct{}
+
+func main() {
+	_ = Some(hello{})
+	res := Applicative2(func(a int, b int) int {
+		return 0
+	})
+	_ = res
+}
+
+type NoneType[T any] struct{}
+
+func (r NoneType[T]) Recover() any {
+	return nil
+}
+
+type Func2[A1, A2, R any] func(a1 A1, a2 A2) R
+
+func Some[T any](v T) any {
+	_ = Some2[T](v)
+	return NoneType[T]{}.Recover()
+}
+
+//go:noinline
+func Some2[T any](v T) any {
+	return v
+}
+
+type Nil struct{}
+
+type ApplicativeFunctor2[H, HT, A1, A2, R any] struct {
+	h any
+}
+
+func Applicative2[A1, A2, R any](fn Func2[A1, A2, R]) ApplicativeFunctor2[Nil, Nil, A1, A2, R] {
+	return ApplicativeFunctor2[Nil, Nil, A1, A2, R]{Some(Nil{})}
+}