| // compile | |
| // 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 | |
| func main() { | |
| var x Value | |
| NewScanner().Scan(x) | |
| } | |
| type Value any | |
| type Scanner interface{ Scan(any) error } | |
| func NewScanner() Scanner { | |
| return &t{} | |
| } | |
| type t struct{} | |
| func (*t) Scan(interface{}) error { return nil } |