Struct OptionalNodeIndex 

pub struct OptionalNodeIndex<IndexType>(/* private fields */);

Implementations

impl<IndexType> OptionalNodeIndex<IndexType>

pub fn new_some(value: IndexType) -> Self

where IndexType: UpperBounded + Eq + Debug,

pub fn new_none() -> Self

where IndexType: UpperBounded,

pub fn from_option(option: Option<NodeIndex<IndexType>>) -> Self

where IndexType: UpperBounded + Eq + Debug,

pub fn into_option(self) -> Option<NodeIndex<IndexType>>

where IndexType: UpperBounded + Eq + Debug,

pub fn expect(self, message: &str) -> NodeIndex<IndexType>

where IndexType: UpperBounded + Eq + Debug,

pub fn unwrap(self) -> NodeIndex<IndexType>

where IndexType: UpperBounded + Eq + Debug,

pub fn unwrap_or(self, default: NodeIndex<IndexType>) -> NodeIndex<IndexType>

where IndexType: UpperBounded + Eq + Debug,

pub fn unwrap_or_else( self, default: impl FnOnce() -> NodeIndex<IndexType>, ) -> NodeIndex<IndexType>

where IndexType: UpperBounded + Eq + Debug,

pub unsafe fn unwrap_unchecked(self) -> NodeIndex<IndexType>

where IndexType: UpperBounded + Eq + Debug,

pub fn from_usize(value: usize) -> Self

where IndexType: UpperBounded + Eq + Debug + TryFrom<usize>,

pub fn from_option_usize(value: Option<usize>) -> Self

where IndexType: UpperBounded + Eq + Debug + TryFrom<usize>,

pub fn into_usize(self) -> Option<usize>

where IndexType: UpperBounded + Eq + TryInto<usize>,

pub fn from_raw(value: Option<IndexType>) -> Self

where IndexType: UpperBounded + Eq + Debug,

pub fn into_raw(self) -> Option<IndexType>

where IndexType: UpperBounded + Eq,

pub fn is_some(&self) -> bool

where IndexType: UpperBounded + Eq,

pub fn is_none(&self) -> bool

where IndexType: UpperBounded + Eq,

Trait Implementations

impl<IndexType: Clone> Clone for OptionalNodeIndex<IndexType>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<IndexType: UpperBounded + Eq + Debug> Debug for OptionalNodeIndex<IndexType>

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

Formats the value using the given formatter.

impl<IndexType: UpperBounded + Eq + Display> Display for OptionalNodeIndex<IndexType>

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

Formats the value using the given formatter.

impl<IndexType: UpperBounded + Eq + Debug> From<NodeIndex<IndexType>> for OptionalNodeIndex<IndexType>

fn from(index: NodeIndex<IndexType>) -> Self

Converts to this type from the input type.

impl<IndexType: UpperBounded + Eq + Debug> From<Option<NodeIndex<IndexType>>> for OptionalNodeIndex<IndexType>

fn from(index: Option<NodeIndex<IndexType>>) -> Self

Converts to this type from the input type.

impl<IndexType: UpperBounded + Eq + Debug + TryFrom<usize>> From<Option<usize>> for OptionalNodeIndex<IndexType>

fn from(value: Option<usize>) -> Self

Converts to this type from the input type.

impl<IndexType: UpperBounded + Eq + Debug> From<OptionalNodeIndex<IndexType>> for Option<NodeIndex<IndexType>>

fn from(optional_index: OptionalNodeIndex<IndexType>) -> Self

Converts to this type from the input type.

impl<IndexType: UpperBounded + Eq + TryInto<usize>> From<OptionalNodeIndex<IndexType>> for Option<usize>

fn from(index: OptionalNodeIndex<IndexType>) -> Self

Converts to this type from the input type.

impl<IndexType: UpperBounded + Eq + Debug + TryFrom<usize>> From<usize> for OptionalNodeIndex<IndexType>

fn from(value: usize) -> Self

Converts to this type from the input type.

impl<IndexType: Hash> Hash for OptionalNodeIndex<IndexType>

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<IndexType: Ord> Ord for OptionalNodeIndex<IndexType>

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<IndexType: PartialEq> PartialEq for OptionalNodeIndex<IndexType>

fn eq(&self, other: &Self) -> 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<IndexType: PartialOrd> PartialOrd for OptionalNodeIndex<IndexType>

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<IndexType: Copy> Copy for OptionalNodeIndex<IndexType>

impl<IndexType: Eq> Eq for OptionalNodeIndex<IndexType>