Struct SparseArray

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pub struct SparseArray<D: KeyValueDB, T: BorshSerialize + BorshDeserialize> {
    pub db: D,
    /* private fields */
}
Expand description

A persistent sparse array built on top of kvdb

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§db: D

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impl<T> SparseArray<InMemory, T>

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impl<D, T> SparseArray<D, T>
where D: KeyValueDB, T: BorshSerialize + BorshDeserialize + 'static,

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pub fn new(db: D) -> SparseArray<D, T>

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pub fn get(&self, index: u64) -> Option<T>

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pub fn iter(&self) -> SparseArrayIter<'_, T>

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pub fn iter_slice<R>(&self, range: R) -> impl Iterator<Item = (u64, T)> + '_
where R: RangeBounds<u64> + 'static,

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pub fn set(&self, index: u64, data: &T)

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pub fn remove(&self, index: u64)

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pub fn remove_all_after(&self, index: u64)

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pub fn count(&self) -> usize

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pub fn set_multiple<'a, I>(&self, items: I)
where I: IntoIterator<Item = &'a (u64, T)>,

Auto Trait Implementations§

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impl<D, T> Freeze for SparseArray<D, T>
where D: Freeze,

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impl<D, T> RefUnwindSafe for SparseArray<D, T>

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impl<D, T> Send for SparseArray<D, T>
where T: Send,

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impl<D, T> Sync for SparseArray<D, T>
where T: Sync,

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impl<D, T> Unpin for SparseArray<D, T>
where D: Unpin, T: Unpin,

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impl<D, T> UnwindSafe for SparseArray<D, T>
where D: UnwindSafe, T: UnwindSafe,

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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<Out, S> FromSeed<S> for Out
where S: SeedBoxGen<Out>,

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fn from_seed(seed: &[u8]) -> Out

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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V