Enum RelationsError 

pub enum RelationsError {
    OutOfRange {
        from: u32,
        kind: u32,
        target: u32,
        nodes: u32,
        types: u32,
    },
    Io(Error),
    Magic,
    Version {
        found: u32,
        expected: u32,
    },
    Inconsistent,
    Name(FromUtf8Error),
}

A failure while building, reading, or writing the relations.

Variants

OutOfRange

An edge names a node or a type beyond the declared counts.

Fields

from: u32

The source node.

kind: u32

The type index.

target: u32

The target node.

nodes: u32

The node count.

types: u32

The type count.

Io(Error)

An I/O failure.

Magic

The bytes do not start with the relations 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.

Inconsistent

The arrays are inconsistent.

Name(FromUtf8Error)

A type name is not UTF-8.

Trait Implementations

impl Debug for RelationsError

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

Formats the value using the given formatter.

impl Display for RelationsError

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

Formats the value using the given formatter.

impl Error for RelationsError

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 RelationsError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<FromUtf8Error> for RelationsError

fn from(source: FromUtf8Error) -> Self

Converts to this type from the input type.