Struct heapless::sorted_linked_list::FindMut

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pub struct FindMut<'a, T, Idx, K, const N: usize>
where T: Ord, Idx: SortedLinkedListIndex, K: Kind,
{ /* private fields */ }
Expand description

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impl<'a, T, Idx, K, const N: usize> FindMut<'a, T, Idx, K, N>
where T: Ord, Idx: SortedLinkedListIndex, K: Kind,

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pub fn pop(self) -> T

This will pop the element from the list.

Complexity is worst-case O(1).

§Example
use heapless::sorted_linked_list::{SortedLinkedList, Max};
let mut ll: SortedLinkedList<_, _, Max, 3> = SortedLinkedList::new_usize();

ll.push(1).unwrap();
ll.push(2).unwrap();
ll.push(3).unwrap();

// Find a value and update it
let mut find = ll.find_mut(|v| *v == 2).unwrap();
find.pop();

assert_eq!(ll.pop(), Ok(3));
assert_eq!(ll.pop(), Ok(1));
assert_eq!(ll.pop(), Err(()));
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pub fn finish(self)

This will resort the element into the correct position in the list if needed. The resorting will only happen if the element has been accessed mutably.

Same as calling drop.

Complexity is worst-case O(N).

§Example
use heapless::sorted_linked_list::{SortedLinkedList, Max};
let mut ll: SortedLinkedList<_, _, Max, 3> = SortedLinkedList::new_usize();

ll.push(1).unwrap();
ll.push(2).unwrap();
ll.push(3).unwrap();

let mut find = ll.find_mut(|v| *v == 2).unwrap();
find.finish(); // No resort, we did not access the value.

let mut find = ll.find_mut(|v| *v == 2).unwrap();
*find += 1000;
find.finish(); // Will resort, we accessed (and updated) the value.

assert_eq!(ll.pop(), Ok(1002));
assert_eq!(ll.pop(), Ok(3));
assert_eq!(ll.pop(), Ok(1));
assert_eq!(ll.pop(), Err(()));

Trait Implementations§

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impl<T, Idx, K, const N: usize> Deref for FindMut<'_, T, Idx, K, N>
where T: Ord, Idx: SortedLinkedListIndex, K: Kind,

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type Target = T

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl<T, Idx, K, const N: usize> DerefMut for FindMut<'_, T, Idx, K, N>
where T: Ord, Idx: SortedLinkedListIndex, K: Kind,

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

Mutably dereferences the value.
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impl<T, Idx, K, const N: usize> Drop for FindMut<'_, T, Idx, K, N>
where T: Ord, Idx: SortedLinkedListIndex, K: Kind,

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fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations§

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impl<'a, T, Idx, K, const N: usize> Freeze for FindMut<'a, T, Idx, K, N>
where Idx: Freeze,

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impl<'a, T, Idx, K, const N: usize> RefUnwindSafe for FindMut<'a, T, Idx, K, N>

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impl<'a, T, Idx, K, const N: usize> Send for FindMut<'a, T, Idx, K, N>
where Idx: Send, K: Send, T: Send,

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impl<'a, T, Idx, K, const N: usize> Sync for FindMut<'a, T, Idx, K, N>
where Idx: Sync, K: Sync, T: Sync,

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impl<'a, T, Idx, K, const N: usize> Unpin for FindMut<'a, T, Idx, K, N>
where Idx: Unpin,

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impl<'a, T, Idx, K, const N: usize> !UnwindSafe for FindMut<'a, T, Idx, K, N>

Blanket Implementations§

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impl<T> Any for T
where 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 T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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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

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.