Enum MemoError 

pub enum MemoError {
    Io(Error),
    InvalidHeader(String),
    UnsupportedVersion(String),
    BlockIndexOutOfRange {
        index: u32,
        available: u32,
    },
    MissingTerminator,
}

Errors returned by MemoFile.

Variants

Io(Error)

Underlying I/O error (header read, seek, or block read).

InvalidHeader(String)

Memo header is structurally invalid (e.g. too short).

UnsupportedVersion(String)

Memo format is recognised but not supported by this slice.

BlockIndexOutOfRange

Caller requested a block beyond the file’s next-free pointer.

Fields

index: u32

Requested block index.

available: u32

next_block reported by the memo header.

MissingTerminator

Fallback terminator search ran off the end of the file or its safety bound.

Trait Implementations

impl Debug for MemoError

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

Formats the value using the given formatter.

impl Display for MemoError

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

Formats the value using the given formatter.

impl Error for MemoError

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<Error> for MemoError

fn from(source: Error) -> Self

Converts to this type from the input type.