| // 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 | |
| func f[T any](i interface{foo()}) { | |
| switch i.(type) { | |
| case interface{bar() T}: | |
| println("barT") | |
| case myint: | |
| println("myint") | |
| case myfloat: | |
| println("myfloat") | |
| default: | |
| println("other") | |
| } | |
| } | |
| type myint int | |
| func (myint) foo() { | |
| } | |
| func (x myint) bar() int { | |
| return int(x) | |
| } | |
| type myfloat float64 | |
| func (myfloat) foo() { | |
| } | |
| func main() { | |
| f[int](nil) | |
| f[int](myint(6)) | |
| f[int](myfloat(7)) | |
| } |