Thanks for the feedback Ian! I was drawing the idea mostly from Rust, which
already does the same thing, but uses "::" instead of a dot and it works
fine there, but sure, it has its drawbacks.
st 22. 7. 2020 o 0:05 Ian Lance Taylor <i...@golang.org> napísal(a):
> On Tue, Jul 21, 2020 at 8:49 AM <faiface2...@gmail.com> wrote:
> >
> > I feel like you guys missed my suggestion earlier. I will repeat it
> because I think it can be good. What about a dot to separate type
> parameters in specialization?
> >
> > func zero<T>() T {
> > var x T
> > return x
> > }
> >
> > func main() {
> > fmt.Println(zero.<int>()) // . required here
> > }
> >
> > Dot would be required in expressions when type parameters cannot be
> inferred and need to be specified manually.
> >
> > I believe this fixes the syntactic ambiguities and also is consistent
> with the type assertion syntax.
> >
> > What do you think?
>
> Thanks for the note. I did see the earlier suggestion.
>
> Speaking personally, I think the advantage of angle brackets is that
> some other languages, notably C++ and Java, use them for type
> parameters. But they use F<int>, not F.<int>. While I see the
> advantage of emulating the C++ and Java syntax for type parameters, I
> don't see the advantage of having a different syntax that is similar
> but not identical. In my opinion, a similar but different syntax is
> either no better than a more different syntax, or it is actually worse
> because people will keep accidentally typing F<int> when they meant to
> type F.<int>. So I don't see the advantage of .<int>.
>
> You mention the type assertion syntax, but that vague similarity seems
> like another minor drawback, since this syntax would be used for
> instantiation, which is nothing like type assertion.
>
> Just my personal opinion, of course.
>
> Ian
>
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