BlocBuilder constructors

[PlugFox]

Create varius mixins on default BlocBuilder, BlocListener, BlocConsumer

BlocBuilder / BlocListener / BlocConsumer
Default BlocBuilder

BlocBuilder.distinct / BlocListener.distinct / BlocConsumer.distinct
Distinct in buildWhen & listenWhen by default

BlocBuilder.change / BlocListener.change / BlocConsumer.change
Ability to manipulate Change instead of State

[zs-dima]

BlocBuilder.distinct - distinct looks more like default BlocBuilder behavior
so maybe better to create BlocBuilder.nondistinct constructor instead

[zs-dima]

Could be nice to create 2 more constructors:

1. BlocBuilder.where<State> or BlocBuilder.whereState<State> - to filter certain states only

2. BlocBuilder.whereConvert<State> - to filter certain states plus to be able to map states stream with Result Function(State state) delegate

Example:
https://gist.github.com/zs-dima/009139aa960612e036287d1147aed19c