Enum InvalidUpdateError 

pub enum InvalidUpdateError {
    ConstantUpdateNonZero(i64),
    AdditionalVariable(Variable),
    ParameterFound(Parameter),
    MultipleOccurrences,
}

Custom Error type to indicate a malformed update expression

Variants

ConstantUpdateNonZero(i64)

Error indicating that the update set the variable to a constant value that is not 0

AdditionalVariable(Variable)

Error indicating that the update referenced an additional variable

ParameterFound(Parameter)

Error indicating that the update referenced a parameter

MultipleOccurrences

Error indicating that the variable to update occurred multiple times in the update expression

Trait Implementations

impl Clone for InvalidUpdateError

fn clone(&self) -> InvalidUpdateError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InvalidUpdateError

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

Formats the value using the given formatter.

impl Display for InvalidUpdateError

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

Formats the value using the given formatter.

impl Error for InvalidUpdateError

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 From<EvaluationError<Variable>> for InvalidUpdateError

fn from(value: EvaluationError<Variable>) -> Self

Converts to this type from the input type.