CellRecord

type CellRecord<ElementData, LinkData, ElementType, LinkType> = 
  | ElementRecord<ElementData, ElementType>
| LinkRecord<LinkData, LinkType>;

One cell — either an ElementRecord or a LinkRecord — as a discriminated union on type:

• type === 'element' → ElementRecord
• type === 'link' → LinkRecord

Because it discriminates on type, if (cell.type === 'element') narrows correctly inside arrays and hooks. For mixed built-in shape arrays with typed data, build the union yourself: ElementRecord<MyData, 'standard.Rectangle'> | LinkRecord<MyData, 'standard.Link'>.

Type Parameters

Type Parameter	Default type	Description
ElementData	unknown	shape of the custom data payload on elements
LinkData	unknown	shape of the custom data payload on links
ElementType extends string	typeof ELEMENT_MODEL_TYPE	the element type discriminator literal
LinkType extends string	typeof LINK_MODEL_TYPE	the link type discriminator literal