https://github.com/cyndis/qmlrs
qmlrs - QtQuick bindings for Rust
but , still hope qt5 binding for rust.
2014-06-12 14:25 GMT+08:00 Noam Yorav-Raphael <noamr...@gmail.com>:
> Cool. I was afraid that it will be harder for the compiler to optimize
> away the enum, but it seems to be doing fine.
> (If it does turn out that it's harder for the compiler, I don't see a real
> problem with the approach I suggested, as a runtime failure can only be
> caused by a bug in the code generator, not by user code)
>
>
> On Thu, Jun 12, 2014 at 2:13 AM, Kevin Cantu <m...@kevincantu.org> wrote:
>
>> Matthew Monrocq suggests this improvement, which looks even cleaner to
>> use, although slightly more complicated to implement generation of:
>>
>>
>> On Wed, Jun 11, 2014 at 11:38 AM, Matthieu Monrocq <
>> matthieu.monr...@gmail.com> wrote:
>>
>>> [snip]
>>>
>>> I do like the idea of the trait, however I would rather do away with all
>>> the `get_aa`: why not directly wrap the parameters ?
>>>
>>> enum AaBbEnum {
>>> Aa(int, f64),
>>> Bb(f64),
>>> }
>>> trait AaBb {
>>> fn get(&self) -> AaBbEnum;
>>>
>>> }
>>>
>>> impl AaBb for (int, f64) {
>>> fn get(&self) -> AaBbEnum { match *self { (i, f) => Aa(i, f), } }
>>> }
>>>
>>> impl AaBb for (f64) {
>>> fn get(&self) -> AaBbEnum { Bb(*self) }
>>>
>>> }
>>>
>>> fn overloaded<T: AaBb>(x: T) {
>>> match x.get() {
>>> Aa(i, f) => println!("got Aa: {}", (i, f)),
>>> Bb(f) => println!("got Bb: {}", f),
>>>
>>> }
>>> }
>>>
>>> #[main]
>>> fn main() {
>>> overloaded((5i, 7.3243)); // prints: got Aa: (5, 7.3243)
>>> overloaded((3.5)); // prints: got Bb: 3.5
>>> }
>>>
>>> Now, there is no runtime failure => you cannot accidentally match on
>>> `Bb` and requests `get_aa`!
>>>
>>
>>
>>
>> Kevin
>>
>>
>
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