Editando: typeswitch3.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 I interface{ foo() int } type J interface { I bar() } type myint int func (x myint) foo() int { return int(x) } type myfloat float64 func (x myfloat) foo() int { return int(x) } type myint32 int32 func (x myint32) foo() int { return int(x) } func (x myint32) bar() {} func f[T I](i I) { switch x := i.(type) { case T: println("T", x.foo()) case myint: println("myint", x.foo()) default: println("other", x.foo()) } } func main() { f[myfloat](myint(6)) f[myfloat](myfloat(7)) f[myfloat](myint32(8)) f[myint32](myint32(8)) f[myint32](myfloat(7)) f[myint](myint32(9)) f[I](myint(10)) f[J](myint(11)) f[J](myint32(12)) }
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