Enum PersistError 

pub enum PersistError {
    Io(Error),
    Magic,
    Version {
        found: u32,
        expected: u32,
    },
    Csr(CsrError),
    Count {
        found: usize,
        nodes: u32,
    },
}

A failure while reading or writing the layout.

Variants

Io(Error)

An I/O failure.

Magic

The bytes do not start with the graph magic.

Version

The layout version is not the one this build reads.

Fields

found: u32

The version found.

expected: u32

The version this build reads.

Csr(CsrError)

The adjacency arrays are inconsistent.

Count

The bitmap lists do not match the node count.

Fields

found: usize

The number of sets found.

nodes: u32

The node count.

Trait Implementations

impl Debug for PersistError

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

Formats the value using the given formatter.

impl Display for PersistError

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

Formats the value using the given formatter.

impl Error for PersistError

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<CsrError> for PersistError

fn from(source: CsrError) -> Self

Converts to this type from the input type.

impl From<Error> for PersistError

fn from(source: Error) -> Self

Converts to this type from the input type.