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// 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{})}
}
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