Module tree 

Shadow Tree — the framework’s internal representation of the UI.

This mirrors React’s fiber tree but lives in Rust. It is the source of truth for:

• What nodes exist
• Parent/child relationships
• Current props for each node
• Native view handle mappings

Structs

NodeId

Unique identifier for a node in the shadow tree. Assigned by the reconciler (JavaScript side) and passed through IR.

ShadowNode

A single node in the shadow tree.

ShadowTree

The shadow tree — owns all nodes.