Struct Borrowed

#[repr(transparent)]
pub struct Borrowed<T: ?Sized, H = DefaultHasher, S = Cell<u64>> {
    pub value: T,
    /* private fields */
}

A transparent hash wrapper, hash with behavior like How

Examples

let mut set: HashSet<How<String>> = HashSet::new();

assert!(! set.contains(Borrowed::make_ref("a")));
set.insert("a".to_owned().into());
assert!(set.contains(Borrowed::make_ref("a")));

Fields

value: T

Implementations

impl<T, H, S> Borrowed<T, H, S>

pub fn new(value: T) -> Self

Create a Borrowed

Examples

let x: Borrowed<i32, (), ()> = Borrowed::new(2);
assert_eq!(x.value, 2);

impl<T: ?Sized, H, S> Borrowed<T, H, S>

pub fn make_ref(value: &T) -> &Self

transmute reference to Borrowed reference

Examples

let x: &Borrowed<str, (), ()> = Borrowed::make_ref("foo");
assert_eq!(x.value, *"foo");

pub fn make_mut(value: &mut T) -> &mut Self

transmute mutable reference to Borrowed mutable reference

Examples

let mut arr = [1, 2];
let x: &mut Borrowed<[i32], (), ()> = Borrowed::make_mut(&mut arr);
assert_eq!(x.value, [1, 2]);

Trait Implementations

impl<T: ?Sized, H, S> AsMut<Borrowed<T, H, S>> for Borrowed<T, H, S>

fn as_mut(&mut self) -> &mut Self

Converts this type into a mutable reference of the (usually inferred) input type.

impl<T: ?Sized, H, S> AsMut<T> for Borrowed<T, H, S>

fn as_mut(&mut self) -> &mut T

Converts this type into a mutable reference of the (usually inferred) input type.

impl<T: ?Sized, H, S> AsRef<Borrowed<T, H, S>> for Borrowed<T, H, S>

fn as_ref(&self) -> &Self

Converts this type into a shared reference of the (usually inferred) input type.

impl<T: ?Sized, H, S> AsRef<T> for Borrowed<T, H, S>

fn as_ref(&self) -> &T

Converts this type into a shared reference of the (usually inferred) input type.

impl<T, Q, H, S> Borrow<Borrowed<Q, H, S>> for How<T, H, S>

where T: ?Sized + Borrow<Q>, Q: ?Sized,

fn borrow(&self) -> &Borrowed<Q, H, S>

Immutably borrows from an owned value.

impl<T, Q, H, S> BorrowMut<Borrowed<Q, H, S>> for How<T, H, S>

where T: ?Sized + BorrowMut<Q>, Q: ?Sized,

fn borrow_mut(&mut self) -> &mut Borrowed<Q, H, S>

Mutably borrows from an owned value.

impl<T: Clone, H, S> Clone for Borrowed<T, H, S>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: ?Sized + Debug, H, S> Debug for Borrowed<T, H, S>

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

Formats the value using the given formatter.

impl<T: ?Sized, H, S> Deref for Borrowed<T, H, S>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<T: ?Sized, H, S> DerefMut for Borrowed<T, H, S>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<T, H, S> Hash for Borrowed<T, H, S>

where T: ?Sized + Hash, H: Hasher + Default, S: HashStorer + Default,

fn hash<H1: Hasher>(&self, state: &mut H1)

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<T: ?Sized + Ord, H, S> Ord for Borrowed<T, H, S>

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<T: ?Sized + PartialEq, H, S> PartialEq<T> for Borrowed<T, H, S>

fn eq(&self, other: &T) -> 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<T: ?Sized + PartialEq, H, S> PartialEq for Borrowed<T, H, S>

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<T: ?Sized + PartialOrd, H, S> PartialOrd<T> for Borrowed<T, H, S>

fn partial_cmp(&self, other: &T) -> 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<T: ?Sized + PartialOrd, H, S> PartialOrd for Borrowed<T, H, S>

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<T: ?Sized + Copy, H, S> Copy for Borrowed<T, H, S>

impl<T: ?Sized + Eq, H, S> Eq for Borrowed<T, H, S>