Enum DecodeBufferError 

#[non_exhaustive]
pub enum DecodeBufferError {
    NotEnoughBytesInDictionary {
        got: usize,
        need: usize,
    },
    OffsetTooBig {
        offset: usize,
        buf_len: usize,
    },
    ZeroOffset,
    BackendOverflow,
    OutputBufferOverflow {
        tail: usize,
        requested: usize,
        capacity: usize,
    },
}

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.

NotEnoughBytesInDictionary

Fields

got: usize

need: usize

OffsetTooBig

Fields

offset: usize

buf_len: usize

ZeroOffset

BackendOverflow

Legacy unit variant kept for binary compatibility with earlier snapshots of this enum. Not surfaced from any current production path — BufferBackend::try_extend / try_extend_from_within and the new try_reserve (used by DecodeBuffer::repeat) carry their failures through the richer Self::OutputBufferOverflow variant below, which reports the offending tail / requested / capacity triple. New code should pattern-match on OutputBufferOverflow; this unit variant is retained to keep the #[non_exhaustive] enum’s existing discriminant set stable.

OutputBufferOverflow

Repeat-side match copy would write past the writable tail of a fixed-capacity backend (UserSliceBackend). Surfaced by [super::decode_buffer::DecodeBuffer::repeat] / _lookahead when the new BufferBackend::try_reserve rejects the pre-write capacity check — keeping the safe public decode APIs error-returning instead of panicking via the per-call assert! inside extend_from_within_unchecked. Growable backends (FlatBuf, RingBuffer) never produce this; their try_reserve falls through to infallible reserve.

Fields

tail: usize

requested: usize

capacity: usize

Trait Implementations

impl Debug for DecodeBufferError

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

Formats the value using the given formatter.

impl Display for DecodeBufferError

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

Formats the value using the given formatter.

impl Error for DecodeBufferError

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 From<DecodeBufferError> for ExecuteSequencesError

fn from(val: DecodeBufferError) -> Self

Converts to this type from the input type.