Signal Macros

[Solido]

Very early but to start the discussion and team work I've pushed the most simplistic macro
https://github.com/rodydavis/signals.dart/tree/macros

Here is a sandbox to share ideas.

My first concern is that macro works as enhancement not replacement.

So adding a signal does not remove the annotated content thus leading to name collision or confusion.
When reading generated code think about we need to prefix or suffix using a common convention.

@Signalable()
final source = 1;

// Generated
+ final source = signal(1);

// ============================

@Combined()
plus2() => source + 2;

// Generated
+ final plus2 = combined(() => source + 2);

// ============================

@Effect('log')
display() {
  println(mapped.value);
}

// Generated
+ effect(() {
   println(plus2.value);
}, debugLabel:'log')

// ============================

@Signal(10, 'counter')
class Flux<int> {
  
  @Assign()
  int increment(value) => value + 1;

}

// Generated
+ class Flux extends ValueSignal<int> {
   Flux():super(10, debugLabel:'counter');

     int increment(int by) {
        value = value + by;
        return value;
     }

 }

// ============================

class Handler {
  @Signal(8)
  final source;

  @Signal('')
  final message;
}

// Generated
+ class Handler {

  final source;
  final message;

  Handler() {
     final source = signal(8);
     final message = signal('');
  }
  
}