Runtime-modifiable lifecycle events

Initial discussion at https://github.com/forgojs/forgo/issues/54

Initial proposal by @spiffytech

function MyComponent() {
  return (component: ComponentBuilder) => {
    component.mount(() => {
      const interval = setInterval(doStuff, 1_000);
      component.unmount(() => clearInterval(interval));
      const socket = makeWebsocket();
      component.unmount(() => socket.close());
    });
    component.render(() => <div>Hello world</div>);
  };
}

This style feels good to me. What do we get from nesting the arrow function within MyComponent?

This style starts to feel a bit like SolidJS, which might be a good direction to go. Their approach seems like a logical evolution of what major frameworks have turned into.

I like this style more than trying to add events on top of the existing monolith object API.

We might need to make some multicast and some not and eat that as a documentation issue. transformAttrs would be the same as render - no point in having two of them, you’d really want (manually?) composed functions instead.

[spiffytech]

Sounds good! I’ll start looking into implementation later today.

[spiffytech]

Everything is out!