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 HandlerFuncfunc(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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