Enum SchemaVersion 

#[non_exhaustive]
pub enum SchemaVersion {
    Ifc2x3,
    Ifc4,
    Ifc4x1,
    Ifc4x2,
    Ifc4x3,
}

The IFC release a classification read binds to (re-exported from ifc-schema). Which IFC schema version a table describes.

#[non_exhaustive]: a release added later is a new variant, and a consumer’s match must say what it does with a release it has not proven – refuse it, never alias it to a neighbour.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Ifc2x3

IFC2x3 TC1 — 653 entities. Still the most common in the wild.

Ifc4

IFC4 ADD2 TC1 — 776 entities. The ISO-standard release.

Ifc4x1

IFC4x1 FINAL — 801 entities. Adds alignment (IfcAlignment and its curves) to IFC4.

Ifc4x2

IFC4x2 FINAL — 816 entities. Adds bridges (IfcBridge, IfcFacility) to IFC4x1.

Ifc4x3

IFC4x3 ADD2 — 876 entities. Adds alignment and civil infrastructure.

Implementations

impl SchemaVersion

pub const ALL: [SchemaVersion; 5]

Every version this crate knows, oldest first.

Which of them have bundled tables in a given build is a separate question; see for_version.

pub const fn release_id(self) -> &'static str

Exact published release identifier for the bundled structural table.

pub const fn expected_entity_count(self) -> usize

Entity count asserted when the bundled artifact is generated.

pub const fn expected_type_count(self) -> usize

Defined-type count asserted when the bundled artifact is generated.

pub const fn header_tokens(self) -> &'static [&'static str]

Header tokens accepted for this release, excluding case-only variants.

pub const fn feature_name(self) -> &'static str

The ifc-schema cargo feature that bundles this release’s table.

pub const fn is_bundled(self) -> bool

Whether this build bundles this release’s table, i.e. whether for_version(self) succeeds.

pub fn from_header_token(token: &str) -> Option<SchemaVersion>

Parse the token found in a STEP file’s FILE_SCHEMA header entry.

Trait Implementations

impl Clone for SchemaVersion

fn clone(&self) -> SchemaVersion

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for SchemaVersion

impl Debug for SchemaVersion

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Eq for SchemaVersion

impl Hash for SchemaVersion

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for SchemaVersion

fn eq(&self, other: &SchemaVersion) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for SchemaVersion