const num three = 3;
dynamic dynamicFunction(dynamic d) => d;
Object? objectFunction(Object? o) => o;
int intFunction(int i) => i;
T idFunction<T>(T t) => t;
const int Function(int) idAsIntFunction = idFunction;

class Class<T> {
  final bool field;
  const Class(dynamic value) : field = value is T;
}

class ClassWithBound<T extends num> {
  final bool field;
  const ClassWithBound() : field = three is T;
  const ClassWithBound.withValue(dynamic value) : field = value is T;
}

class ClassWithList<T> {
  final bool field;
  const ClassWithList(dynamic value) : field = value is List<T>;
}

class ClassWithFunction<T> {
  final bool field;
  const ClassWithFunction(dynamic value) : field = value is T Function(T);
}

void main() {}