Effect for after all setProps occur but before createEffect

[chiefcll]

I have a project using the Universal Renderer: https://github.com/lightning-js/solid

When elements are created:

createElement(name: string): ElementNode {
    const node = new ElementNode(name);
    renderer.root && createEffect(() => node.render());
    return node;
  },

We do the initial render via createEffect to gather all the properties before passing them to the Lightning Renderer (WebGL) in a single function call. Downside of this is timing - if others use createEffect, that happens before the node is rendered - same with onMount. And createRenderEffect happens right away... Question is can we do a one time callback after all the initial setProps happen but before createEffect?

Why:

Users will have an onMount or createEffect in the component. The problem is those effects run before the createEffect in the createElement so users will get a callback that doesn't have a rendered node.

[chiefcll]

Reading through the code - I think a simple solution would be to override spread function and call render right after spread occurs.