Enum IndexError 

pub enum IndexError {
    BrokenNextLink,
    BrokenPrevLink,
    ElementIsFree,
    ElementIsFreeSentinel,
    IndexIsNone,
    IndexIsStale,
    IndexOutOfBounds,
}

An error type representing failures in list operations.

These errors typically arise from providing an invalid Index to a pool method, such as one that is out of bounds or points to an already-freed element.

Variants

BrokenNextLink

A consistency check failed: an element’s next link does not point back correctly.

BrokenPrevLink

A consistency check failed: an element’s prev link does not point back correctly.

ElementIsFree

The element at the index is on the pool’s free list and cannot be used.

ElementIsFreeSentinel

An attempt was made to operate on the free list’s own sentinel node.

IndexIsNone

The provided index was Index::NONE.

IndexIsStale

The index generation does not match the element’s generation.

IndexOutOfBounds

The provided index exceeds the bounds of the pool’s element vector.

Trait Implementations

impl Debug for IndexError

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

Formats the value using the given formatter.

impl Display for IndexError

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

Formats the value using the given formatter.

impl Error for IndexError

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 PartialEq for IndexError

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for IndexError

impl StructuralPartialEq for IndexError