A some weak reason not to support the change.
Using unnamed parameter types could avoiding some explicit conversions.
package main
import "net/http"
type MyHandlerFunc func(http.ResponseWriter, *http.Request)
func f(http.HandlerFunc) {}
func g(MyHandlerFunc) {}
func h(func(http.ResponseWriter, *http.Request)) {}
func main() {
var x http.HandlerFunc
var y MyHandlerFunc
var z func(http.ResponseWriter, *http.Request)
f(x) // ok
f(y) // error: need conversion
f(z) // ok
g(x) // error: need conversion
g(y) // ok
g(z) // ok
h(x) // ok
h(y) // ok
h(z) // ok
}
On Sunday, June 27, 2021 at 9:52:39 AM UTC-4 vituc...@gmail.com wrote:
> Hello gophers!
>
> While studing at this source code
> <https://github.com/golang/go/blob/37f9a8f69d6299783eac8848d87e27eb563500ac/src/net/http/server.go>
>
> in search for some knowledge and enlightment, i do note that in some file a
> type is defined and then is not used in a place where it could be used.
> This open an interrogant for me, because tipification is often good thing,
> regardless the language I may state, and I express it via a ticket
> <https://github.com/golang/go/issues/46926>. I get the idea that due to
> language grammar changing the code would be a breaking change.
>
> But i keep wondering if they actually do this for a reason.. i mean, given
> the possiblity to get back in time, ¿does the team at golang will write the
> same source code, definiting a type with a name and then intenttionally not
> using it? i mean...i keep wondering if there is any reason for defined
> types and then not use it and using the gitlab channel i probably fail to
> express my initial intention. I do often read some third party code, in
> order to view others minds (or try at least..), what i'm asking here is a
> question in order to get another people point of view.
>
> Thanks again!
>
>
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