RDART-1010: Allow configuration of generator per realm model class

[nielsenko]

Support per realm model configuration of the generator via the GeneratorConfig class. Currently we only support specifying the constructor style to use, as this has been a very frequent request (see #292).

// somewhere define your preferred generator configuration and a const RealmModel that uses it
const config = GeneratorConfig(ctorStyle: CtorStyle.allNamed);
const realmModel = RealmModel.using(generatorConfig: config);

@realmModel // <-- use here
class _Person {
  late String name;
  int age = 42;
}

will generate a constructor like:

Person({
  required String name,
  int age = 42,
}) { ... }

Fixes: #292
Fixes: #1642

[coveralls-official]

Pull Request Test Coverage Report for Build 8738189165

Details

• 27 of 29 (93.1%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.05%) to 86.448%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
packages/realm_generator/lib/src/realm_model_info.dart	22	24	91.67%

Totals
Change from base Build 8735259797:	0.05%
Covered Lines:	5894
Relevant Lines:	6818

---

💛 - Coveralls

[nielsenko]

A small drive by edit. Not related to this PR

[nielsenko]

This is actually fixing a bug in version 2.1.0. Named arguments cannot start with underscore.

[nielsenko]

The interesting bit

[nielsenko]

Are you okay with this?

[nirinchev]

I don't think it's a big deal. I don't imagine anyone has any code that reads this value.

[Dararii]

Can someone tell me how to implement this in Real: 2.1.0?

These lines are resulting in references not found:
const config = GeneratorConfig(ctorStyle: CtorStyle.allNamed);
const realmModel = RealmModel.using(generatorConfig: config);

What class should I import?

[nielsenko]

This feature is not released yet. It will go out with the next release.