| // 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 | |
| func f[T any](i interface{}) { | |
| switch i.(type) { | |
| case T: | |
| println("T") | |
| case int: | |
| println("int") | |
| default: | |
| println("other") | |
| } | |
| } | |
| type myint int | |
| func (myint) foo() { | |
| } | |
| func main() { | |
| f[interface{}](nil) | |
| f[interface{}](6) | |
| f[interface{foo()}](nil) | |
| f[interface{foo()}](7) | |
| f[interface{foo()}](myint(8)) | |
| } |