Enum Class 

#[non_exhaustive]
pub enum Class {
    Validation,
    Corruption,
    NotFound,
    Retryable,
    ResourceExhaustion(ResourceExhaustionKind),
    Io(ErrorKind),
    Tagged(&'static str),
}

The semantic class of an error.

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.

Validation

Function or method input was invalid.

Corruption

Stored or streamed data was malformed or internally inconsistent.

NotFound

A requested resource does not exist.

Retryable

Retrying the operation may succeed.

ResourceExhaustion(ResourceExhaustionKind)

A finite resource was exhausted.

Io(ErrorKind)

An I/O failure not normalized to another semantic class.

Tagged(&'static str)

An operation-specific condition identified by a stable, namespaced string.

Functions returning this class document their tags. Tags imply no other classification; match them with Classifications::has() instead of inspecting diagnostic text or metadata.

Trait Implementations

impl Clone for Class

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Class

impl Debug for Class

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

Formats the value using the given formatter.

impl Eq for Class

impl PartialEq for Class

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Class