lager

I am working on something like that for C++, a library + debugger called Lager. Quite experimental yet, but been using it to write apps with SDL and Ncurses and I am happy with how it is going... In the end it is a very simple architecture, implementable in any language. Good immutable data-structures are important for big programs though. Library: https://github.com/arximboldi/lager Ncurses example (full text-editor): https://github.com/arximboldi/ewig SDL example: https://twitter.com/sinusoidalen/status/939539173584916480 Immutable data: https://github.com/arximboldi/immer (There was a talk about Lager at MeetingCpp this year, still waiting for it to be published online...)

Then your controller needs to know about 1) all existing views and 2) all effects of model update logic. Again, you end up with low decoupling with points that you can only change with global knowledge (and lots of potential effect interleaving). If you already have a "plain data" model, the next logical step is to just get rid of stateful controller and use a simple data-flow Redux-like flow for updating the UI. I give in that the tricky part is finding UI frameworks that play nicely. You need something React-like to efficiently re-evaluate the Model -> UI functions, or use an immediate-mode API. Alternatively one can manually write some function to update a stateful UI by comparing the previous and current model and often it's enough. It is a bit like your controller but it is agnostic to the specific actions that happened but just l

Nice thing about this architecture is that it really is agnostic to your stack and as long as you have some way to build "values" you are good to go. I have recently been working on a Redux for C++ experimental library with time-travel and all. As an example I built a mini-emacs text-editor with it. Should post about it here whenever I flesh out the README and all (or the MeetingCpp talk about it gets published). In the meantime you might want to check these links: The library: https://github.com/arximboldi/lager The Counter-Example: https://github.com/arximboldi/lager/tree/master/example/coun... The text editor: https://travis-ci.org/arximboldi/ewig Show-case of a time-travelling debugger: https://twitter.com/sinusoidalen/status/926382341433577472