Struct MergedStats 

pub struct MergedStats {
    pub models: usize,
    pub written: usize,
    pub federated_model_count: usize,
    pub unmerged_model_count: usize,
    pub unit_rescale_required: bool,
    pub dropped_container_count: usize,
    pub warnings: Vec<String>,
}

Coverage stats for a merged export.

Fields

models: usize

Number of input models.

written: usize

Entity lines written.

federated_model_count: usize

Models federated as their own IfcProject (incompatible units under Auto / Normalize).

unmerged_model_count: usize

Models left unmerged because placing them would overflow the u32 EXPRESS-id space. Non-zero means the merge stopped early to avoid wrapping ids; the caller should route the whole set to a wider-id path if this is hit.

unit_rescale_required: bool

True when a Normalize export encountered an incompatible-unit model that was federated rather than rescaled — the caller should route that case to the JS path if true single-project normalization is required.

dropped_container_count: usize

Spatial containers dropped for holding nothing, counted in the merged model (a container unified across three inputs counts once). Always 0 unless MergedOptions::drop_empty_containers is set.

warnings: Vec<String>

Human-readable notes (e.g. federation relaxing IfcSingleProjectInstance).