Enum SlotError 

#[non_exhaustive]
pub enum SlotError {
    AppendToSingle,
    ReplaceOnMulti,
    CapacityExceeded,
}

A typed error from the SlotValues append/replace operations. Payload-free by the security standard: it names what went wrong, never the value or slot the caller tried to act on.

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.

AppendToSingle

append was called on a single-valued slot. Single-valued slots take replace; there is no append path that can grow one to two values.

ReplaceOnMulti

replace was called on a multi-valued slot. Multi-valued slots take append; clear then re-append to reset.

CapacityExceeded

append would exceed the slot’s declared bound.

Trait Implementations

impl Clone for SlotError

fn clone(&self) -> SlotError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SlotError

impl Debug for SlotError

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

Formats the value using the given formatter.

impl Display for SlotError

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

Formats the value using the given formatter.

impl Eq for SlotError

impl Error for SlotError

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 SlotError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SlotError