Enum AttributeError 

pub enum AttributeError {
    NotSupported(Identifier),
    CannotAssignAttribute(Box<Expression>),
    AttributeAlreadySet(Identifier, Value),
    NotFound(Identifier),
    InvalidCommand(Identifier),
}

Error type for attributes.

Variants

NotSupported(Identifier)

Unknown attribute.

CannotAssignAttribute(Box<Expression>)

Attribute cannot be assigned to an expression.

AttributeAlreadySet(Identifier, Value)

Warning when an attribute has already been set.

NotFound(Identifier)

The attribute was not found.

InvalidCommand(Identifier)

Invalid command.

Trait Implementations

impl Debug for AttributeError

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

Formats the value using the given formatter.

impl Display for AttributeError

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

Formats the value using the given formatter.

impl Error for AttributeError

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<AttributeError> for EvalError

fn from(source: AttributeError) -> Self

Converts to this type from the input type.