| // 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 myint int | |
| func (x myint) foo() int {return int(x)} | |
| type myfloat float64 | |
| func (x myfloat) foo() float64 {return float64(x) } | |
| func f[T any](i interface{}) { | |
| switch x := i.(type) { | |
| case interface { foo() T }: | |
| println("fooer", x.foo()) | |
| default: | |
| println("other") | |
| } | |
| } | |
| func main() { | |
| f[int](myint(6)) | |
| f[int](myfloat(7)) | |
| f[float64](myint(8)) | |
| f[float64](myfloat(9)) | |
| } |