Function validate_layer_lengths 

pub fn validate_layer_lengths<Id, I>(
    layers: &[PropertyLayer<Id, I>],
    id_family: IdFamily,
    required: usize,
) -> Result<(), LayerLengthError>
where
    I: PropertyIndex,

Validates that every layer holds at least required rows for id_family.

Errors

Returns LayerLengthError naming the first layer shorter than required.

Performance

This function is O(layers.len()).