Struct indexmap::map::VacantEntry

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pub struct VacantEntry<'a, K, V> { /* private fields */ }

Expand description

A view into a vacant entry in a IndexMap. It is part of the Entry enum.

Implementations

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impl<'a, K, V> VacantEntry<'a, K, V>

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pub fn key(&self) -> &K

Gets a reference to the key that was used to find the entry.

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pub fn into_key(self) -> K

Takes ownership of the key, leaving the entry vacant.

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pub fn index(&self) -> usize

Return the index where the key-value pair will be inserted.

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pub fn insert(self, value: V) -> &'a mut V

Inserts the entry’s key and the given value into the map, and returns a mutable reference to the value.

Trait Implementations

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impl<K: Debug, V> Debug for VacantEntry<'_, K, V>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations

impl<'a, K, V> RefUnwindSafe for VacantEntry<'a, K, V>where
K: RefUnwindSafe,
V: RefUnwindSafe,

impl<'a, K, V> Send for VacantEntry<'a, K, V>where
K: Send,
V: Send,

impl<'a, K, V> Sync for VacantEntry<'a, K, V>where
K: Sync,
V: Sync,

impl<'a, K, V> Unpin for VacantEntry<'a, K, V>where
K: Unpin,

impl<'a, K, V> !UnwindSafe for VacantEntry<'a, K, V>

Blanket Implementations

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impl<T> Any for Twhere
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for Twhere
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source

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

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for Twhere
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

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impl<T, U> TryFrom for Twhere
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for Twhere
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct indexmap::map::VacantEntry

Implementations

impl<'a, K, V> VacantEntry<'a, K, V>

pub fn key(&self) -> &K

pub fn into_key(self) -> K

pub fn index(&self) -> usize

pub fn insert(self, value: V) -> &'a mut V

Trait Implementations

impl<K: Debug, V> Debug for VacantEntry<'_, K, V>

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

Auto Trait Implementations

impl<'a, K, V> RefUnwindSafe for VacantEntry<'a, K, V>where
K: RefUnwindSafe,
V: RefUnwindSafe,

impl<'a, K, V> Send for VacantEntry<'a, K, V>where
K: Send,
V: Send,

impl<'a, K, V> Sync for VacantEntry<'a, K, V>where
K: Sync,
V: Sync,

impl<'a, K, V> Unpin for VacantEntry<'a, K, V>where
K: Unpin,

impl<'a, K, V> !UnwindSafe for VacantEntry<'a, K, V>

Blanket Implementations

impl<T> Any for Twhere
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere
T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

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

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for Twhere
U: From<T>,

fn into(self) -> U

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::<T>()

type Init = T

unsafe fn init(init: <T as Pointable>::Init) -> usize

unsafe fn deref<'a>(ptr: usize) -> &'a T

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

unsafe fn drop(ptr: usize)

impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Struct indexmap::map::VacantEntry

Implementations

impl<'a, K, V> VacantEntry<'a, K, V>

pub fn key(&self) -> &K

pub fn into_key(self) -> K

pub fn index(&self) -> usize

pub fn insert(self, value: V) -> &'a mut V

Trait Implementations

impl<K: Debug, V> Debug for VacantEntry<'_, K, V>

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

Auto Trait Implementations

impl<'a, K, V> RefUnwindSafe for VacantEntry<'a, K, V>where K: RefUnwindSafe, V: RefUnwindSafe,

impl<'a, K, V> Send for VacantEntry<'a, K, V>where K: Send, V: Send,

impl<'a, K, V> Sync for VacantEntry<'a, K, V>where K: Sync, V: Sync,

impl<'a, K, V> Unpin for VacantEntry<'a, K, V>where K: Unpin,

impl<'a, K, V> !UnwindSafe for VacantEntry<'a, K, V>

Blanket Implementations

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

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

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::<T>()

type Init = T

unsafe fn init(init: <T as Pointable>::Init) -> usize

unsafe fn deref<'a>(ptr: usize) -> &'a T

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

unsafe fn drop(ptr: usize)

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<'a, K, V> RefUnwindSafe for VacantEntry<'a, K, V>where
K: RefUnwindSafe,
V: RefUnwindSafe,

impl<'a, K, V> Send for VacantEntry<'a, K, V>where
K: Send,
V: Send,

impl<'a, K, V> Sync for VacantEntry<'a, K, V>where
K: Sync,
V: Sync,

impl<'a, K, V> Unpin for VacantEntry<'a, K, V>where
K: Unpin,

impl<T> Any for Twhere
T: 'static + ?Sized,

impl<T> Borrow<T> for Twhere
T: ?Sized,

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

impl<T, U> Into<U> for Twhere
U: From<T>,

impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,