Enum OneShotError 

#[non_exhaustive]
pub enum OneShotError {
    LengthOverflow,
    Input(InputError),
    PositionOverflow,
    OutputTooSmall {
        required: usize,
        available: usize,
    },
    AllocationLimitExceeded {
        required: usize,
        limit: usize,
    },
    AllocationFailed {
        requested: usize,
    },
    Backend(BackendFault),
}

Error returned by a canonical ordinary one-shot operation.

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.

LengthOverflow

The encoded output length cannot be represented by usize.

Input(InputError)

Strict validation rejected the ordinary input.

PositionOverflow

Absolute source positions cannot be represented by usize.

OutputTooSmall

The caller’s destination cannot hold the complete result.

Fields

required: usize

Exact required output bytes.

available: usize

Available destination bytes.

AllocationLimitExceeded

The exact output exceeds the caller-selected allocation limit.

Fields

required: usize

Exact required output bytes.

limit: usize

Maximum permitted output bytes.

AllocationFailed

try_reserve_exact could not reserve the complete output allocation.

Fields

requested: usize

Exact requested output bytes.

Backend(BackendFault)

An internal backend or state invariant failed.

Trait Implementations

impl Clone for OneShotError

fn clone(&self) -> OneShotError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for OneShotError

impl Debug for OneShotError

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

Formats the value using the given formatter.

impl Display for OneShotError

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

Formats the value using the given formatter.

impl Eq for OneShotError

impl Error for OneShotError

Available on crate feature std only.

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 OneShotError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for OneShotError