Macros

[techouse]

With the advent of Dart Macros we should probably start looking into adopting them in Chopper v9.

What are your thoughts, guys?

CC / @JEuler @Guldem

[Guldem]

I'm all for it :D I have been following the macros development for a year or so now and excited its almost here.

Also I've already done some tests with it, exploring and possible chopper route. Currently there is still something I haven't figured out. That is obtaining meta data in macros. For example when annotating a parameter in a method with Body(), Param(), etc.. This is the only actual information I was able to find regarding this: https://github.com/dart-lang/sdk/blob/6bc417dd17f5edb228e60b9aebb70650bf7d5f50/tests/language/macros/json/json_serializable.dart#L275

But issues can be solved 😉 How should we go further with this. Include it in a separated package or in the chopper package itself?
Do we want to split some work? And will it impact existing features?

[Guldem]

After some more exploring I have found that I see metadata when using VSCode Go to Augment. WHen using intellij or cli I still don't see the same result. Not sure why or how but learning more and more 😉

[Guldem]

I'm also always thinking on how to improve it and implement it the best it could be. Currently chopper is based on Retrofit and build with what build_runner is capable of. But macros and augmentations might offer new and other ways of define a chopper client.

For example:

@Get(uri: 'awesome/{id}',returnType: MyClass)
@ChopperClient('http://example.com')
class MyClient {
}

void main() async {
final client = MyClient();

final myClass = await client.getMyClass(id: '1');
}

I think we should not just port chopper to macros but also explore the best way this could work with macros.

[b14cknc0d3]

If we use this method @Get(uri: 'awesome/{id}',returnType: MyClass)
I think We don't need to worry about @Body @Param annotation , just add body , param, path into params of injected method. 😃

[Guldem]

That was also why I came up with this. But it would change the way your used to how its working now.