Enum FSETableError 

#[non_exhaustive]
pub enum FSETableError {
    AccLogIsZero,
    AccLogTooBig {
        got: u8,
        max: u8,
    },
    GetBitsError(GetBitsError),
    ProbabilityCounterMismatch {
        got: u32,
        expected_sum: u32,
        symbol_probabilities: Vec<i32>,
    },
    TooManySymbols {
        got: usize,
    },
    InvalidProbability {
        value: i32,
        table_size: u32,
        accuracy_log: u8,
    },
    TableInvariantViolation {
        prob: i32,
        symbol: u8,
        num_bits: u8,
        accuracy_log: u8,
    },
}

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.

AccLogIsZero

AccLogTooBig

Fields

got: u8

max: u8

GetBitsError(GetBitsError)

ProbabilityCounterMismatch

Fields

got: u32

expected_sum: u32

symbol_probabilities: Vec<i32>

TooManySymbols

Fields

got: usize

InvalidProbability

Probability value outside the RFC 8878 §4.1.1 allowed set {-1, 0, 1..=table_size}. Carries the violating value, the table size (1 << accuracy_log) and accuracy_log so the caller can pinpoint the failure without re-deriving the bound.

Fields

value: i32

table_size: u32

accuracy_log: u8

TableInvariantViolation

calc_baseline_and_numbits produced a state-entry whose bit width exceeds the table’s accuracy log, violating the new_state + (1 << num_bits) - 1 < table_size invariant that the unchecked read_entry decode hot path relies on. The triggering probability is in-range per RFC 8878 §4.1.1; the failure is an internal table-shape inconsistency surfaced against the public build_from_probabilities API.

Fields

prob: i32

symbol: u8

num_bits: u8

accuracy_log: u8

Trait Implementations

impl Debug for FSETableError

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

Formats the value using the given formatter.

impl Display for FSETableError

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

Formats the value using the given formatter.

impl Error for FSETableError

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<FSETableError> for DecodeSequenceError

fn from(val: FSETableError) -> Self

Converts to this type from the input type.

impl From<FSETableError> for DictionaryDecodeError

fn from(val: FSETableError) -> Self

Converts to this type from the input type.

impl From<FSETableError> for HuffmanTableError

fn from(val: FSETableError) -> Self

Converts to this type from the input type.