1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41
|
package main
import "fmt"
type WidgetEvent struct {
Nothing string
}
type WidgetControl interface {
HandleEvent(e *WidgetEvent)
}
type Button struct{}
func (b *Button) HandleEvent(e *WidgetEvent) {
}
type WindowEvent struct {
Something int
}
type Window struct {
Widget WidgetControl
}
func (w *Window) HandleEvent(e *WindowEvent) {
}
func main() {
window := &Window{
Widget: &Button{},
}
windowevent := &WindowEvent{}
// The next line uses the signature from the wrong method, resulting in an error.
// Renaming one of the clashing method names fixes the problem.
window.HandleEvent(windowevent)
fmt.Println("OK!")
}
// Output:
// OK!
|