Enum ModelError

#[non_exhaustive]
pub enum ModelError {
    NodeNotFound(NodeId),
    TermNotFound(TermId),
    RegionNotFound(RegionId),
    InvalidVar(VarId),
    InvalidSymbol(NodeId),
    UnexpectedOperation(NodeId),
    TypeError(TermId),
    InvalidRegions(NodeId),
    MalformedName(SmolStr),
    MalformedCondition(NodeId),
    InvalidOperation(NodeId),
}

Errors that can occur when traversing and interpreting the model.

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.

NodeNotFound(NodeId)

There is a reference to a node that does not exist.

TermNotFound(TermId)

There is a reference to a term that does not exist.

RegionNotFound(RegionId)

There is a reference to a region that does not exist.

InvalidVar(VarId)

Invalid variable reference.

InvalidSymbol(NodeId)

Invalid symbol reference.

UnexpectedOperation(NodeId)

The model contains an operation in a place where it is not allowed.

TypeError(TermId)

There is a term that is not well-typed.

InvalidRegions(NodeId)

There is a node whose regions are not well-formed according to the node’s operation.

MalformedName(SmolStr)

There is a name that is not well-formed.

MalformedCondition(NodeId)

There is a condition node that lacks a case for a tag or defines two cases for the same tag.

InvalidOperation(NodeId)

There is a node that is not well-formed or has the invalid operation.

Trait Implementations

impl Clone for ModelError

fn clone(&self) -> ModelError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ModelError

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

Formats the value using the given formatter.

impl Display for ModelError

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

Formats the value using the given formatter.

impl Error for ModelError

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.