Enum DecodeVariableLengthBytesError 

pub enum DecodeVariableLengthBytesError {
    InvalidChar(InvalidCharError),
    OddLengthString(OddLengthStringError),
}

Error returned when hex decoding a hex string with variable length.

This represents the first error encountered during decoding, however we may add other remaining ones in the future.

This error differs from DecodeFixedLengthBytesError in that the number of bytes is only known at run time - e.g. when decoding Vec<u8>.

Variants

InvalidChar(InvalidCharError)

Non-hexadecimal character.

OddLengthString(OddLengthStringError)

Purported hex string had odd (not even) length.

Implementations

impl DecodeVariableLengthBytesError

pub fn offset(self, by_bytes: usize) -> Self

Adds by_bytes to all character positions stored inside.

If you’re parsing a larger string that consists of multiple hex sub-strings and want to return InvalidCharError you may need to use this function so that the callers of your parsing function can tell the exact position where decoding failed relative to the start of the string passed into your parsing function.

Note that this function has the standard Rust overflow behavior because you should only ever pass in the position of the parsed hex string relative to the start of the entire input. In that case overflow is impossible.

This method consumes and returns self so that calling it inside a closure passed into Result::map_err is convenient.

Trait Implementations

impl Clone for DecodeVariableLengthBytesError

fn clone(&self) -> DecodeVariableLengthBytesError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DecodeVariableLengthBytesError

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

Formats the value using the given formatter.

impl Display for DecodeVariableLengthBytesError

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

Formats the value using the given formatter.

impl Eq for DecodeVariableLengthBytesError

impl Error for DecodeVariableLengthBytesError

Available on crate feature std, or rust_version=>= 1.81.0 and crate feature newer-rust-version only.

fn source(&self) -> Option<&(dyn StdError + '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<Infallible> for DecodeVariableLengthBytesError

fn from(never: Infallible) -> Self

Converts to this type from the input type.

impl From<InvalidCharError> for DecodeVariableLengthBytesError

fn from(e: InvalidCharError) -> Self

Converts to this type from the input type.

impl From<OddLengthStringError> for DecodeVariableLengthBytesError

fn from(e: OddLengthStringError) -> Self

Converts to this type from the input type.

impl PartialEq for DecodeVariableLengthBytesError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DecodeVariableLengthBytesError