Enum Base32Error

pub enum Base32Error<E> {
    DecodeInvalidLen {
        len: usize,
    },
    DecodeInvalidAscii {
        byte: u8,
    },
    DecodeOverflow {
        id: E,
    },
}

Errors that can occur while decoding Crockford Base32 strings.

This error type is generic over the decoded ID type E, which allows including the decoded ID in case of overflow. This can help callers inspect or log invalid IDs during error handling.

Variants

DecodeInvalidLen

The input string length was invalid.

Crockford Base32 decodes values in 5-bit chunks. Strings of unexpected length are rejected to avoid silent truncation or padding.

Fields

len: usize

The length of the input string.

DecodeInvalidAscii

The input contained a character that is not valid Crockford Base32.

Accepts digits 0–9, uppercase letters A–Z, and lowercase letters. Aliases like O/o → 0 and I/i/L/l → 1 are also supported.

This error is returned when a non-alphanumeric or non-ASCII character (e.g. @, *, ~) is encountered during decoding.

Fields

byte: u8

The invalid byte found in the input string.

DecodeOverflow

The decoded value exceeds the valid range for the target ID type.

This occurs when the input string sets reserved or unused high bits.

Fields

id: E

The decoded ID value, which failed validation.

Trait Implementations

impl<E: Clone> Clone for Base32Error<E>

fn clone(&self) -> Base32Error<E>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<E: Debug> Debug for Base32Error<E>

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

Formats the value using the given formatter.

impl<E: Debug> Display for Base32Error<E>

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

Formats the value using the given formatter.

impl<E: Debug> Error for Base32Error<E>

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<E: Debug> From<Base32Error<E>> for Error<E>

fn from(err: Base32Error<E>) -> Self

Converts to this type from the input type.