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.