| // run -gcflags=-G=3 |
| |
| // 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)) |
| } |
