go typeswitch5 源码
golang typeswitch5 代码
文件路径：/test/typeparam/typeswitch5.go
// 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))
}
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