Method demo

examples/demo.php:3456–3473

()

class DeepVariableChainDemo
{
    public function demo(): void
    {
        // 5-level chain: each variable is assigned from a method/property on the previous.
        $brush = new Brush();
        $canvas = $brush->getCanvas();
        $easel = $canvas->easel;
        $material = $easel->material;         // string from Easel::$material
        $back = $canvas->getBrush();
        $back->stroke();                      // Brush::stroke() — full round-trip

        // Reassignment chains: the resolver picks the most recent assignment.
        $tool = new Pen();
        $tool->write();                       // Pen::write()
        $tool = new Pencil();
        $tool->sketch();                      // Pencil::sketch() — Pen::write() is gone
        $tool = new Marker();
        $tool->highlight();                   // Marker::highlight()
    }
}