Enum MaterialError 

#[non_exhaustive]
pub enum MaterialError {
    WrongEntityType {
        expected: &'static str,
        actual: String,
    },
    MissingAttribute {
        entity: &'static str,
        id: EntityId,
        attribute: &'static str,
    },
    InvalidValue {
        entity: &'static str,
        id: EntityId,
        attribute: &'static str,
        value: String,
    },
    AuthoringInvalid {
        entity: &'static str,
        attribute: &'static str,
        value: String,
    },
    AuthoringReferenceType {
        target: EntityId,
        expected: &'static str,
        actual: String,
    },
    UnknownEntity {
        id: EntityId,
    },
    DanglingReference {
        source_id: EntityId,
        target: EntityId,
    },
    ReferenceType {
        source_id: EntityId,
        target: EntityId,
        expected: &'static str,
        actual: String,
    },
    AmbiguousAssignment {
        object: EntityId,
        count: usize,
    },
    AmbiguousType {
        object: EntityId,
        count: usize,
    },
}

A malformed, ambiguous, or unresolved material projection.

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.

WrongEntityType

A projection expected one entity type but the model holds another.

Fields

expected: &'static str

The IFC entity type name that was expected.

actual: String

The IFC entity type name actually found on the record.

MissingAttribute

A required attribute slot on the entity is absent (unset $).

Fields

entity: &'static str

The IFC entity type name.

id: EntityId

The id of the entity missing the attribute.

attribute: &'static str

The name of the missing attribute.

InvalidValue

An attribute is present but its value violates a WHERE rule or type constraint.

Fields

entity: &'static str

The IFC entity type name.

id: EntityId

The id of the entity with the invalid attribute.

attribute: &'static str

The name of the invalid attribute.

value: String

A rendering of the offending value.

AuthoringInvalid

A value supplied to an authoring function cannot be written to the named entity attribute.

Fields

entity: &'static str

The IFC entity type name being authored.

attribute: &'static str

The name of the attribute that rejected the value.

value: String

A rendering of the rejected value.

AuthoringReferenceType

An authoring-time reference points at an entity of the wrong type.

Fields

target: EntityId

The id of the referenced entity.

expected: &'static str

The IFC entity type name that was expected.

actual: String

The IFC entity type name actually found at target.

UnknownEntity

A referenced entity id does not exist in the model.

Fields

id: EntityId

The id that could not be resolved.

DanglingReference

A reference field points at an id absent from the model.

Fields

source_id: EntityId

The id of the entity holding the reference.

target: EntityId

The unresolved target id.

ReferenceType

A reference resolves to an entity, but of the wrong type.

Fields

source_id: EntityId

The id of the entity holding the reference.

target: EntityId

The id of the referenced entity.

expected: &'static str

The IFC entity type name that was expected.

actual: String

The IFC entity type name actually found at target.

AmbiguousAssignment

The object is directly related to more than one IfcMaterial via IfcRelAssociatesMaterial, so the single active material cannot be determined.

Fields

object: EntityId

The id of the object with conflicting assignments.

count: usize

The number of direct material assignments found.

AmbiguousType

The object is typed by more than one IfcTypeObject, so its inherited material cannot be determined unambiguously.

Fields

object: EntityId

The id of the object with conflicting type relationships.

count: usize

The number of IfcTypeObject relationships found.

Trait Implementations

impl Clone for MaterialError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MaterialError

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

Formats the value using the given formatter.

impl Display for MaterialError

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

Formats the value using the given formatter.

impl Error for MaterialError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for MaterialError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for MaterialError