Enum MaybeOwned

pub enum MaybeOwned<'a, T: 'a> {
    Borrowed(&'a T),
    Owned(T),
}

A variant of Cow that doesn’t require Clone.

Variants

Borrowed(&'a T)

Owned(T)

Implementations

impl<'a, T: 'a> MaybeOwned<'a, T>

pub fn borrow(&self) -> &T

Get a reference to the contained value.

pub fn into_cow(self) -> Cow<'a, T>

where T: Clone,

Turn this type into a Cow.

Requires Clone.

impl<'a, T: 'a + Clone> MaybeOwned<'a, T>

pub fn unwrap_or_clone(self) -> T

Get the value, cloning if necessary.

Trait Implementations

impl<'a, T: 'a + Debug> Debug for MaybeOwned<'a, T>

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

Formats the value using the given formatter.

impl<'a, T: 'a + Default> Default for MaybeOwned<'a, T>

fn default() -> MaybeOwned<'a, T>

Returns the “default value” for a type.

impl<'a, T: 'a + Display> Display for MaybeOwned<'a, T>

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

Formats the value using the given formatter.

impl<'a, T: 'a + Hash> Hash for MaybeOwned<'a, T>

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<'a, T: 'a + Ord> Ord for MaybeOwned<'a, T>

fn cmp(&self, other: &MaybeOwned<'_, T>) -> 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<'a, T: 'a + PartialEq> PartialEq for MaybeOwned<'a, T>

fn eq(&self, other: &MaybeOwned<'_, T>) -> bool

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

fn ne(&self, other: &MaybeOwned<'_, T>) -> bool

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

impl<'a, T: 'a + PartialOrd> PartialOrd for MaybeOwned<'a, T>

fn partial_cmp(&self, other: &MaybeOwned<'_, T>) -> Option<Ordering>

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

fn lt(&self, other: &MaybeOwned<'_, T>) -> bool

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

fn le(&self, other: &MaybeOwned<'_, T>) -> bool

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

fn gt(&self, other: &MaybeOwned<'_, T>) -> bool

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

fn ge(&self, other: &MaybeOwned<'_, T>) -> bool

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

impl<'a, T: 'a + Eq> Eq for MaybeOwned<'a, T>