Re: [go-nuts] I see golang net/http code, i imitate it, but i can't.

[Howl]

HandlerFunc is not a struct. You probably wanted to do this (line 17):

demo := HandlerFunc(Add)

On 04/12/16 15:02, Neng Kong wrote:

i see this:

type HandlerFunc func(ResponseWriter, *Request)

// ServeHTTP calls f(w, r).
func (f HandlerFunc) ServeHTTP(w ResponseWriter, r *Request) {
    f(w, r)
}

and i imitate it, but can't compile:

package main

import "fmt"

type Handler interface {

    Call(x, y int)

}

func Add(x, y int) {

    fmt.Println(x+y)

}

type HandlerFunc func(x, y int)

func (f HandlerFunc) Call(x, y int) {

    f(x, y) 

}

func main() {

    demo := HandlerFunc{}

    var i Handler

    i = demo

    i.Call(1, 2)

}

[john@localhost gweb]$ go run demo.go

# command-line-arguments

./inspiration_by_golang_http.go:17: invalid type for composite literal: HandlerFunc

i do not understand it, this is way ?

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