CanJS 3.NEXT Epic

[justinbmeyer]

A collection of issues for the next "big" release of CanJS. This release will hopefully not break 3.X compatibility, but will represent a sizable change in how we build apps.

I feel like it will include the following:

• - Improvements to can-connect
• - Improvements to can-set
• - The ability to trace how values are derived, from the DOM to the source data.
• - can-element
• - New templating engine(s) (probably supporting JSX and something stream-compatible).
• - Decorators that add observability and other cool features to ViewModels and Models based around class expressions. Decorators work in stealJS
• - ViewModels that only derive from streams.

This epic should be examples of putting all of this together.

[matthewp]

ViewModels that only derive from streams.

What is this? is there a subissue about this?

[justinbmeyer]

@matthewp there isn't yet. I've talked about it a few place. I'm about to organize this epic and link to all other issues. What is in and out of this issue is 100% up for discussion.

But in short, there's some VMs that could be written as mostly stream-based. I'd like to explore that:

@defineStream({
  prop : "setable-stream"
  other: function(){
    this.prop.map(() => null);
  }
});
class WeatherVM {

}

[matthewp]

@phillipskevin @justinbmeyer given that you've decided to do a 4.0, is there any need to keep this issue open here?

[phillipskevin]

I would be fine closing this.