IFClite TypeScript API
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    Interface ExistingRelatedList

    One relationship the caller already found referencing an id, so the builders below never need to scan the store themselves — see the module header.

    interface ExistingRelatedList {
        allMemberIds?: readonly number[];
        relatedIds: readonly number[];
        relatingId?: number;
        relId: number;
    }
    Index
    allMemberIds? relatedIds relatingId? relId
    allMemberIds?: readonly number[]

    When a controller legally has MORE THAN ONE relationship of this kind (e.g. two separate IfcRelAssignsToControl records for the same schedule), every member across ALL of them — used only to decide which requested ids are genuinely new, never as the list written back. Writing this union into relId's own slot would copy a secondary relationship's members into the primary one, duplicating membership while leaving the secondary relationship untouched. Defaults to relatedIds when absent (the single-relationship case, where the two are the same set).

    relatedIds: readonly number[]

    The relationship's current RelatedObjects (or Components), in file order.

    relatingId?: number

    The relationship's RelatingObject, when the caller is supplying a nesting graph.

    relId: number

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