Struct abscissa_core::map::OccupiedEntry 1.0.0[−][src]
A view into an occupied entry in a BTreeMap
.
It is part of the Entry
enum.
Implementations
impl<'a, K, V> OccupiedEntry<'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 in the entry.
Examples
use std::collections::BTreeMap; let mut map: BTreeMap<&str, usize> = BTreeMap::new(); map.entry("poneyland").or_insert(12); assert_eq!(map.entry("poneyland").key(), &"poneyland");
pub fn remove_entry(self) -> (K, V)
1.12.0[src]
Take ownership of the key and value from the map.
Examples
use std::collections::BTreeMap; use std::collections::btree_map::Entry; let mut map: BTreeMap<&str, usize> = BTreeMap::new(); map.entry("poneyland").or_insert(12); if let Entry::Occupied(o) = map.entry("poneyland") { // We delete the entry from the map. o.remove_entry(); } // If now try to get the value, it will panic: // println!("{}", map["poneyland"]);
pub fn get(&self) -> &V
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Gets a reference to the value in the entry.
Examples
use std::collections::BTreeMap; use std::collections::btree_map::Entry; let mut map: BTreeMap<&str, usize> = BTreeMap::new(); map.entry("poneyland").or_insert(12); if let Entry::Occupied(o) = map.entry("poneyland") { assert_eq!(o.get(), &12); }
pub fn get_mut(&mut self) -> &mut V
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Gets a mutable reference to the value in the entry.
If you need a reference to the OccupiedEntry
that may outlive the
destruction of the Entry
value, see into_mut
.
Examples
use std::collections::BTreeMap; use std::collections::btree_map::Entry; let mut map: BTreeMap<&str, usize> = BTreeMap::new(); map.entry("poneyland").or_insert(12); assert_eq!(map["poneyland"], 12); if let Entry::Occupied(mut o) = map.entry("poneyland") { *o.get_mut() += 10; assert_eq!(*o.get(), 22); // We can use the same Entry multiple times. *o.get_mut() += 2; } assert_eq!(map["poneyland"], 24);
pub fn into_mut(self) -> &'a mut V
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Converts the entry into a mutable reference to its value.
If you need multiple references to the OccupiedEntry
, see get_mut
.
Examples
use std::collections::BTreeMap; use std::collections::btree_map::Entry; let mut map: BTreeMap<&str, usize> = BTreeMap::new(); map.entry("poneyland").or_insert(12); assert_eq!(map["poneyland"], 12); if let Entry::Occupied(o) = map.entry("poneyland") { *o.into_mut() += 10; } assert_eq!(map["poneyland"], 22);
pub fn insert(&mut self, value: V) -> V
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Sets the value of the entry with the OccupiedEntry
's key,
and returns the entry's old value.
Examples
use std::collections::BTreeMap; use std::collections::btree_map::Entry; let mut map: BTreeMap<&str, usize> = BTreeMap::new(); map.entry("poneyland").or_insert(12); if let Entry::Occupied(mut o) = map.entry("poneyland") { assert_eq!(o.insert(15), 12); } assert_eq!(map["poneyland"], 15);
pub fn remove(self) -> V
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Takes the value of the entry out of the map, and returns it.
Examples
use std::collections::BTreeMap; use std::collections::btree_map::Entry; let mut map: BTreeMap<&str, usize> = BTreeMap::new(); map.entry("poneyland").or_insert(12); if let Entry::Occupied(o) = map.entry("poneyland") { assert_eq!(o.remove(), 12); } // If we try to get "poneyland"'s value, it'll panic: // println!("{}", map["poneyland"]);
Trait Implementations
Auto Trait Implementations
impl<'a, K, V> RefUnwindSafe for OccupiedEntry<'a, K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,
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K: RefUnwindSafe,
V: RefUnwindSafe,
impl<'a, K, V> Send for OccupiedEntry<'a, K, V> where
K: Send,
V: Send,
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K: Send,
V: Send,
impl<'a, K, V> Sync for OccupiedEntry<'a, K, V> where
K: Sync,
V: Sync,
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K: Sync,
V: Sync,
impl<'a, K, V> Unpin for OccupiedEntry<'a, K, V>
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impl<'a, K, V> !UnwindSafe for OccupiedEntry<'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> AsAny for T where
T: Any,
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T: Any,
pub fn as_any(&Self) -> &(dyn Any + 'static)
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pub fn as_mut_any(&mut Self) -> &mut (dyn Any + 'static)
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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> From<T> for T
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impl<T> Instrument for T
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pub fn instrument(self, span: Span) -> Instrumented<Self>
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pub fn in_current_span(self) -> Instrumented<Self>
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<D> OwoColorize for D
pub fn fg<C>(&'a self) -> FgColorDisplay<'a, C, Self> where
C: Color,
C: Color,
pub fn bg<C>(&'a self) -> BgColorDisplay<'a, C, Self> where
C: Color,
C: Color,
pub fn black(&'a self) -> FgColorDisplay<'a, Black, Self>
pub fn on_black(&'a self) -> BgColorDisplay<'a, Black, Self>
pub fn red(&'a self) -> FgColorDisplay<'a, Red, Self>
pub fn on_red(&'a self) -> BgColorDisplay<'a, Red, Self>
pub fn green(&'a self) -> FgColorDisplay<'a, Green, Self>
pub fn on_green(&'a self) -> BgColorDisplay<'a, Green, Self>
pub fn yellow(&'a self) -> FgColorDisplay<'a, Yellow, Self>
pub fn on_yellow(&'a self) -> BgColorDisplay<'a, Yellow, Self>
pub fn blue(&'a self) -> FgColorDisplay<'a, Blue, Self>
pub fn on_blue(&'a self) -> BgColorDisplay<'a, Blue, Self>
pub fn magenta(&'a self) -> FgColorDisplay<'a, Magenta, Self>
pub fn on_magenta(&'a self) -> BgColorDisplay<'a, Magenta, Self>
pub fn purple(&'a self) -> FgColorDisplay<'a, Magenta, Self>
pub fn on_purple(&'a self) -> BgColorDisplay<'a, Magenta, Self>
pub fn cyan(&'a self) -> FgColorDisplay<'a, Cyan, Self>
pub fn on_cyan(&'a self) -> BgColorDisplay<'a, Cyan, Self>
pub fn white(&'a self) -> FgColorDisplay<'a, White, Self>
pub fn on_white(&'a self) -> BgColorDisplay<'a, White, Self>
pub fn bright_black(&'a self) -> FgColorDisplay<'a, BrightBlack, Self>
pub fn on_bright_black(&'a self) -> BgColorDisplay<'a, BrightBlack, Self>
pub fn bright_red(&'a self) -> FgColorDisplay<'a, BrightRed, Self>
pub fn on_bright_red(&'a self) -> BgColorDisplay<'a, BrightRed, Self>
pub fn bright_green(&'a self) -> FgColorDisplay<'a, BrightGreen, Self>
pub fn on_bright_green(&'a self) -> BgColorDisplay<'a, BrightGreen, Self>
pub fn bright_yellow(&'a self) -> FgColorDisplay<'a, BrightYellow, Self>
pub fn on_bright_yellow(&'a self) -> BgColorDisplay<'a, BrightYellow, Self>
pub fn bright_blue(&'a self) -> FgColorDisplay<'a, BrightBlue, Self>
pub fn on_bright_blue(&'a self) -> BgColorDisplay<'a, BrightBlue, Self>
pub fn bright_magenta(&'a self) -> FgColorDisplay<'a, BrightMagenta, Self>
pub fn on_bright_magenta(&'a self) -> BgColorDisplay<'a, BrightMagenta, Self>
pub fn bright_purple(&'a self) -> FgColorDisplay<'a, BrightMagenta, Self>
pub fn on_bright_purple(&'a self) -> BgColorDisplay<'a, BrightMagenta, Self>
pub fn bright_cyan(&'a self) -> FgColorDisplay<'a, BrightCyan, Self>
pub fn on_bright_cyan(&'a self) -> BgColorDisplay<'a, BrightCyan, Self>
pub fn bright_white(&'a self) -> FgColorDisplay<'a, BrightWhite, Self>
pub fn on_bright_white(&'a self) -> BgColorDisplay<'a, BrightWhite, Self>
pub fn bold(&'a self) -> BoldDisplay<'a, Self>
pub fn dimmed(&'a self) -> DimDisplay<'a, Self>
pub fn italic(&'a self) -> ItalicDisplay<'a, Self>
pub fn underline(&'a self) -> UnderlineDisplay<'a, Self>
pub fn blink(&'a self) -> BlinkDisplay<'a, Self>
pub fn blink_fast(&'a self) -> BlinkFastDisplay<'a, Self>
pub fn reversed(&'a self) -> ReversedDisplay<'a, Self>
pub fn hidden(&'a self) -> HiddenDisplay<'a, Self>
pub fn strikethrough(&'a self) -> StrikeThroughDisplay<'a, Self>
pub fn color<Color>(
&'a self,
color: Color
) -> FgDynColorDisplay<'a, Color, Self> where
Color: DynColor,
&'a self,
color: Color
) -> FgDynColorDisplay<'a, Color, Self> where
Color: DynColor,
pub fn on_color<Color>(
&'a self,
color: Color
) -> BgDynColorDisplay<'a, Color, Self> where
Color: DynColor,
&'a self,
color: Color
) -> BgDynColorDisplay<'a, Color, Self> where
Color: DynColor,
pub fn truecolor(
&'a self,
r: u8,
g: u8,
b: u8
) -> FgDynColorDisplay<'a, Rgb, Self>
&'a self,
r: u8,
g: u8,
b: u8
) -> FgDynColorDisplay<'a, Rgb, Self>
pub fn on_truecolor(
&'a self,
r: u8,
g: u8,
b: u8
) -> BgDynColorDisplay<'a, Rgb, Self>
&'a self,
r: u8,
g: u8,
b: u8
) -> BgDynColorDisplay<'a, Rgb, Self>
pub fn style(&self, style: Style) -> Styled<&Self>
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>,