openbim-step 0.10.0

Added

• express::parse extracts the aggregate shape of every explicit
  attribute: Attribute::aggregation lists its levels outermost first, each
  an Aggregation with its AggregateKind (LIST, SET, BAG, ARRAY),
  lower and upper Bound (an integer, ?, or an unevaluated
  expression), whether its elements are UNIQUE, and whether an ARRAY's
  elements are OPTIONAL. Omitted bounds are recorded as [0:?], as
  ISO 10303-11 defines them.
• EntityDef::inverses: the entity's INVERSE attributes, each an
  InverseAttribute with its name, target entity, for_attribute as
  written, optional SET/BAG aggregation, and the supertype it
  redeclares for SELF\X.Name.
• EntityDef::unique_rules: the entity's UNIQUE rules, each a
  UniqueRule with its label (if any) and attribute names as written
  (qualified SELF\X.Y kept).
• Constructors for building declarations without struct literals:
  ParsedSchema::new, TypeDef::new, WhereRule::new,
  Redeclaration::new, Aggregation::new, InverseAttribute::new,
  UniqueRule::new, and EntityDef::{abstract_, with_where_rule, with_inverse, with_unique_rule}, Attribute::with_aggregation.

Checked on the IFC2X3 TC1, IFC4 ADD2 TC1 and IFC4X3 ADD2 schemas: 115/153/165
inverse attributes and 17/4/4 unique rules, equal to an independent count of
the schema text. Every other extracted field is unchanged on all three
schemas except the nested-list fix below.

Changed (breaking)

• Every declaration type in express is #[non_exhaustive]
  (ParsedSchema, EntityDef, Attribute, TypeDef, TypeKind,
  WhereRule, Redeclaration, and the new types), so extracting more of
  the language later is not a breaking change. Code that built these with
  struct literals uses the constructors instead; destructuring needs ...
• A nested aggregate's Attribute::type_name is its innermost element type:
  CoordList : LIST [1:?] OF LIST [3:3] OF IfcLengthMeasure now reports
  IfcLengthMeasure where it reported LIST, and the two levels are in
  aggregation. This changes 11 attributes of IFC4 and 12 of IFC4X3.
• OPTIONAL makes an attribute optional only where it opens the
  declaration; ARRAY [1:3] OF OPTIONAL X marks the elements
  (Aggregation::optional_elements), not the attribute.