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package main
import (
"fmt"
)
type T1 struct{}
func (t1 T1) f() {
fmt.Println("T1.f()")
}
func (t1 T1) g() {
fmt.Println("T1.g()")
}
type T2 struct {
T1
}
func (t2 T2) f() {
fmt.Println("T2.f()")
}
type I interface {
f()
}
func printType(i I) {
if t1, ok := i.(T1); ok {
println("T1 ok")
t1.f()
t1.g()
}
if t2, ok := i.(T2); ok {
println("T2 ok")
t2.f()
t2.g()
}
}
func main() {
println("T1")
printType(T1{})
println("T2")
printType(T2{})
}
// Output:
// T1
// T1 ok
// T1.f()
// T1.g()
// T2
// T2 ok
// T2.f()
// T1.g()
|
