Enum IoError 

#[non_exhaustive]
pub enum IoError {
    Truncated {
        needed: usize,
        got: usize,
    },
    UnknownVersion {
        got: u8,
    },
    InvalidBitWidth {
        got: u8,
    },
    InvalidUtf8,
    LengthMismatch,
    BadMagic {
        got: [u8; 4],
    },
    InvalidHeader,
    Decode(CodecError),
    Io(Error),
}

Errors produced by serialization and file I/O operations.

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.

Truncated

The input slice is shorter than expected.

Fields

needed: usize

Minimum bytes required.

got: usize

Bytes actually available.

UnknownVersion

The format version byte is not recognized.

Fields

got: u8

The version byte found in the data.

InvalidBitWidth

The bit_width field in the serialized data is not in {2, 4, 8}.

Fields

got: u8

The invalid bit-width value.

InvalidUtf8

The config_hash field contains bytes that are not valid UTF-8.

LengthMismatch

A length in the serialized data does not match the expected value.

BadMagic

The file magic bytes are not TQCV.

Fields

got: [u8; 4]

The actual magic bytes found in the file.

InvalidHeader

A header field value is outside its valid range.

Decode(CodecError)

An inner codec operation failed during decode.

Io(Error)

A file system I/O error (used in Phase 17+ file-path APIs).

Trait Implementations

impl Debug for IoError

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

Formats the value using the given formatter.

impl Display for IoError

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

Formats the value using the given formatter.

impl Error for IoError

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<CodecError> for IoError

fn from(source: CodecError) -> Self

Converts to this type from the input type.

impl From<Error> for IoError

fn from(source: Error) -> Self

Converts to this type from the input type.