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//! Structured IFC value containers indexed by position or time.
//!
//! A table indexes values by row and column; a time series indexes them
//! by time. Neither carries domain meaning of its own: both bottom out in
//! lists of `IfcValue`, and both appear side by side in the schema's own
//! `IfcMetricValueSelect` and `IfcObjectReferenceSelect`.
//!
//! # Cells are the caller's to type
//!
//! A cell is an `IfcValue`: a SELECT over measure types. `4.2` and
//! `IFCLENGTHMEASURE(4.2)` are different files, and only the second can be
//! converted or compared dimensionally. This crate never invents a measure;
//! the caller passes a `Value` and chooses.
//!
//! # Derived attributes are not stored
//!
//! `IfcTable` DERIVEs three counts from its rows. STEP writes a derived
//! attribute as `*`, not as a number, so they are emitted as
//! [`ifc_model::Value::Derived`] and never computed into the file.
//!
//! # Reading back
//!
//! [`TabularView`] borrows a model and returns [`Table`] and
//! [`TimeSeries`] views under a declared IFC4 or IFC4X3 schema. A read
//! reports every malformed slot and WR1/WR2 violation as a
//! [`TabularIssue`] rather than dropping it.
pub use ;
pub use ;
pub use ;
pub use ;
pub use ;
pub use ;