1.0.0[−][src]Struct tract_tensorflow::prelude::tract_data::internal::tract_smallvec::alloc::collections::btree_map::VacantEntry
A view into a vacant entry in a BTreeMap
.
It is part of the Entry
enum.
Implementations
impl<'a, K, V> VacantEntry<'a, K, V> where
K: Ord,
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K: Ord,
pub fn key(&self) -> &Kⓘ
1.10.0[src]
Gets a reference to the key that would be used when inserting a value through the VacantEntry.
Examples
use std::collections::BTreeMap; let mut map: BTreeMap<&str, usize> = BTreeMap::new(); assert_eq!(map.entry("poneyland").key(), &"poneyland");
pub fn into_key(self) -> K
1.12.0[src]
Take ownership of the key.
Examples
use std::collections::BTreeMap; use std::collections::btree_map::Entry; let mut map: BTreeMap<&str, usize> = BTreeMap::new(); if let Entry::Vacant(v) = map.entry("poneyland") { v.into_key(); }
pub fn insert(self, value: V) -> &'a mut Vⓘ
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Sets the value of the entry with the VacantEntry
's key,
and returns a mutable reference to it.
Examples
use std::collections::BTreeMap; use std::collections::btree_map::Entry; let mut map: BTreeMap<&str, u32> = BTreeMap::new(); if let Entry::Vacant(o) = map.entry("poneyland") { o.insert(37); } assert_eq!(map["poneyland"], 37);
Trait Implementations
impl<'_, K, V> Debug for VacantEntry<'_, K, V> where
K: Ord + Debug,
1.12.0[src]
K: Ord + Debug,
Auto Trait Implementations
impl<'a, K, V> RefUnwindSafe for VacantEntry<'a, K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,
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K: RefUnwindSafe,
V: RefUnwindSafe,
impl<'a, K, V> Send for VacantEntry<'a, K, V> where
K: Send,
V: Send,
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K: Send,
V: Send,
impl<'a, K, V> Sync for VacantEntry<'a, K, V> where
K: Sync,
V: Sync,
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K: Sync,
V: Sync,
impl<'a, K, V> Unpin for VacantEntry<'a, K, V> where
K: Unpin,
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K: Unpin,
impl<'a, K, V> !UnwindSafe for VacantEntry<'a, K, V>
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Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut Tⓘ
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impl<T> Downcast for T where
T: Any,
T: Any,
pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>ⓘNotable traits for Box<R, Global>
impl<R> Read for Box<R, Global> where
R: Read + ?Sized, impl<W> Write for Box<W, Global> where
W: Write + ?Sized, impl<F, A> Future for Box<F, A> where
F: Unpin + Future + ?Sized,
A: Allocator + 'static, type Output = <F as Future>::Output;impl<I, A> Iterator for Box<I, A> where
I: Iterator + ?Sized,
A: Allocator, type Item = <I as Iterator>::Item;
Notable traits for Box<R, Global>
impl<R> Read for Box<R, Global> where
R: Read + ?Sized, impl<W> Write for Box<W, Global> where
W: Write + ?Sized, impl<F, A> Future for Box<F, A> where
F: Unpin + Future + ?Sized,
A: Allocator + 'static, type Output = <F as Future>::Output;impl<I, A> Iterator for Box<I, A> where
I: Iterator + ?Sized,
A: Allocator, type Item = <I as Iterator>::Item;
pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
pub fn as_any(&self) -> &(dyn Any + 'static)
pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
impl<T> DowncastSync for T where
T: Send + Sync + Any,
T: Send + Sync + Any,
impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,