A real Dynamic-Proxy implementation In Go.
// xxx
var x InterfaceX = impl.New()
dpig.Component(&x)
// xx
var postCall = func(in, out []reflect.Value) {
log.Println("post call print:", out[0].Interface())
}
dpig.Change(dpig.MethodSelector{Object:"InterfaceX",Method:"GetX"}, dpig.Extend{Post: []dpig.PostCall{postCall}})
x.GetX()
Component
accept a pointer to interface.
Then all method of this interface instance can be dynamic proxied.
Change
change the behavior of the matched method.
functions in Pre
will be executed before the method call.
functions in Post
will be executed after the method call.