/// Minimal stand-ins for the parts of flutter_bloc that pipe recognises, so the
/// fixture needs no dependencies. pipe identifies blocs by the `Bloc<...>` /
/// `Cubit<...>` supertype and by `emit(...)` call sites.
library;

abstract class Bloc<E, S> {
  Bloc(S initial) : state = initial;

  S state;

  void emit(S next) {
    state = next;
  }

  void add(E event) {}

  void on<T extends E>(
    void Function(T event, void Function(S next) emit) handler,
  ) {}
}

/// Minimal stand-in for flutter_bloc's BlocBuilder, so render-site extraction
/// can be exercised without Flutter.
class BlocBuilder<B, S> {
  const BlocBuilder({required this.builder});

  final Object Function(Object context, S state) builder;
}