// 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 Iterator[T any] interface { | |
Iterate(fn T) | |
} | |
type IteratorFunc[T any] func(fn T) | |
func (f IteratorFunc[T]) Iterate(fn T) { | |
f(fn) | |
} | |
func Foo[R any]() { | |
var _ Iterator[R] = IteratorFunc[R](nil) | |
} | |
func main() { | |
Foo[int]() | |
} |