Struct std::collections::hash_map::OccupiedError[−][src]

pub struct OccupiedError<'a, K: 'a, V: 'a> {
    pub entry: OccupiedEntry<'a, K, V>,
    pub value: V,
}
🔬 This is a nightly-only experimental API. (map_try_insert #82766)
Expand description

The error returned by try_insert when the key already exists.

Contains the occupied entry, and the value that was not inserted.

Fields

entry: OccupiedEntry<'a, K, V>
🔬 This is a nightly-only experimental API. (map_try_insert #82766)

The entry in the map that was already occupied.

value: V
🔬 This is a nightly-only experimental API. (map_try_insert #82766)

The value which was not inserted, because the entry was already occupied.

Trait Implementations

impl<K: Debug, V: Debug> Debug for OccupiedError<'_, K, V>[src]

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

Formats the value using the given formatter. Read more

impl<'a, K: Debug, V: Debug> Display for OccupiedError<'a, K, V>[src]

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

Formats the value using the given formatter. Read more

impl<'a, K: Debug, V: Debug> Error for OccupiedError<'a, K, V>[src]

fn description(&self) -> &str[src]

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

Read more

fn source(&self) -> Option<&(dyn Error + 'static)>1.30.0[src]

The lower-level source of this error, if any. Read more

fn backtrace(&self) -> Option<&Backtrace>[src]

🔬 This is a nightly-only experimental API. (backtrace #53487)

Returns a stack backtrace, if available, of where this error occurred. Read more

fn cause(&self) -> Option<&dyn Error>1.0.0[src]

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

Auto Trait Implementations

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

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

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

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

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

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src]

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<T, U> Into<U> for T where
    U: From<T>, [src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<T> ToString for T where
    T: Display + ?Sized, [src]

pub default fn to_string(&self) -> String[src]

Converts the given value to a String. Read more

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

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>[src]

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

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

The type returned in the event of a conversion error.

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

Performs the conversion.