add Rust(std::option::Option) <-> Java(X) mapping

[Dushistov]

Option for Android is hard, so should be setting to generate our own option.

[VMatrix1900]

Has this feature been implemented? Can we close this issue?

[Dushistov]

@VMatrix1900

Is is partly implemented, now only Option<f64 | i64> handled,
I plan to have implementation for at least Option<bool | i8 | i16 | i32> plus Option<ForeignClass> before closing this issue.

[VMatrix1900]

@Dushistov When will this implemented? In 0.2.1? Option<ForeignClass> is very nice to have.

[Dushistov]

@VMatrix1900

Ok, I will include implementation into the next release.

[coltfred]

@Dushistov Have you had a chance to start on this at all? I also need this support and was trying to figure out if I should try and write it in a mappings file or not. (Disclaimer: I don't actually know what I'm doing)

[Dushistov]

@coltfred

Have you had a chance to start on this at all?

As new mantainer, now I am busy with new release of https://github.com/Dushistov/bluetooth-serial-port .
When it will be done, and nobody will implement this feature, I am going to start work on it.

For this feature I imagine to implement something like this:

static_method f(x: Option<Foo>) -> Option<Boo>;

to

Optional<T> f(@Nullable Foo x);

[coltfred]

I haven't, yet. If you're able to do it I could do a code review of it. That might be very instructive to me.

…

On Sat, Mar 2, 2019, 4:44 PM Evgeniy Dushistov ***@***.***> wrote: @coltfred <https://github.com/coltfred> Have you had a chance to start on this at all? As new mantainer, now I am busy with new release of https://github.com/Dushistov/bluetooth-serial-port . When it will be done, and nobody implement this feature, For this feature I imagine to implement something like this: static_method f(x: Option<Foo>) -> Option<Boo>; to Optional<T> ***@***.*** Foo x); — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#11 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAj2N21zJmGjtLhPdYqgsMOLjs2G2tarks5vSwzogaJpZM4Orubn> .

[Dushistov]

Missed things:

1. Support of Option<i32> as input/output
2. i8,i16,f32 as input
3. Option<&str> as input
4. Option as input
5. Check right usage of Nullable / NotNull attributes

[coltfred]

@Dushistov It seems we also don't have Option<String> or Option<&str> as a return type. Did you miss that in your above comment or am I missing something?

[Dushistov]

@coltfred

It seems we also don't have Option or Option<&str> as a return type. Did you miss that in your > above comment or am I missing something?

I am today did some java job, and missed Option<&str> as input argument,
that's why I included it into list. If you need also Option<String>, Option<&str> we
can also include them into list.

[coltfred]

I need them as return types. I won't have time to work on this for a few days so any help you could give would be awesome.

…

On Fri, Mar 15, 2019, 5:12 PM Evgeniy Dushistov ***@***.***> wrote: @coltfred <https://github.com/coltfred> It seems we also don't have Option or Option<&str> as a return type. Did you miss that in your > above comment or am I missing something? I am today did some java job, and missed Option<&str> as input argument, that's why I included it into list. If you need also Option<String>, Option<&str> we can also include them into list. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#11 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAj2N0w42nVPR1CjHmc9-Rg0JDCTZBlyks5vXCjFgaJpZM4Orubn> .

[Dushistov]

Missed things:

1. Support of Option<i32> as input/output
2. i8,i16,f32 as input
3. Option<&str> as input
4. Option<&T> as input
5. Option<ForeignEnum> as input and output