Struct index_list::listindex::ListIndex

pub struct ListIndex { /* private fields */ }

Vector index for the elements in the list. They are typically not squential.

Implementations

impl ListIndex

pub fn new() -> ListIndex

pub fn is_some(&self) -> bool

Returns true for a valid index.

A valid index can be used in IndexList method calls.

pub fn is_none(&self) -> bool

Returns true for an invalid index.

An invalid index will always be ignored and have None returned from any IndexList method call that returns something.

Trait Implementations

impl Clone for ListIndex

fn clone(&self) -> ListIndex

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ListIndex

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

Formats the value using the given formatter.

impl Default for ListIndex

fn default() -> ListIndex

Returns the “default value” for a type.

impl Display for ListIndex

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

Formats the value using the given formatter.

impl From<Option<usize>> for ListIndex

fn from(index: Option<usize>) -> ListIndex

Converts to this type from the input type.

impl From<u32> for ListIndex

fn from(index: u32) -> ListIndex

Converts to this type from the input type.

impl From<u64> for ListIndex

fn from(index: u64) -> ListIndex

Converts to this type from the input type.

impl From<usize> for ListIndex

fn from(index: usize) -> ListIndex

Converts to this type from the input type.

impl PartialEq for ListIndex

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl Copy for ListIndex

impl Eq for ListIndex

impl StructuralEq for ListIndex

impl StructuralPartialEq for ListIndex