mirror of
https://github.com/golang/go
synced 2024-11-24 14:00:15 -07:00
29 lines
573 B
Go
29 lines
573 B
Go
|
// 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))
|
||
|
}
|