If you use Go’s “accept interfaces return concrete types” the dev/ide knows to
declare the concrete type.
Type inference can actually cause more issues during refactorings - not
alleviate them.
Personally, I find types make the code easier to read. But when I write ago I
don’t use them. I find when I review old code it is a bit harder.
In Java I think it is less of an issue (on refactoring) because you normally
use the interface and due to implements you have more safety.
> On Apr 24, 2023, at 2:14 AM, a2800276 <a2800...@gmail.com> wrote:
>
>
> import “os”
> func main() {
> file, _ := os.Open(os.Args[1])
> myfunc(file)
> }
>
> func myfunc(file ???) {
> }
>
> What type should I use to declare “file” in the parameter list for myfunc()?
>
> This argument doesn't seem logical to me. If I fully declare `file` in this
> case, I also have to know which type to declare it as:
>
> var file ???;
> file, _ = os.Open(...)
>
> This will also be a "distraction and waste time". I'm all for explicit
> declarations in cases where they add clarity, but in idiomatic cases, I don't
> feel it adds anything useful.
>
> Additionally, in cases where I am creating a new function to work with the
> variable, surely I'm aware of more context concerning the API, e.g. in the
> example, I'll assume `file` has `Read` and `Close`, but passing the variable
> along, I would assume the operation on the variable will be more involved and
> requiring reading the documentation anyway ...
>
> -tim
>
>
>
>
>
>
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