reth_trie::forward_cursor

Struct ForwardInMemoryCursor

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pub struct ForwardInMemoryCursor<'a, K, V> { /* private fields */ }
Expand description

The implementation of forward-only in memory cursor over the entries. The cursor operates under the assumption that the supplied collection is pre-sorted.

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impl<'a, K, V> ForwardInMemoryCursor<'a, K, V>

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pub const fn new(entries: &'a Vec<(K, V)>) -> Self

Create new forward cursor positioned at the beginning of the collection. The cursor expects all of the entries have been sorted in advance.

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pub fn is_empty(&self) -> bool

Returns true if the cursor is empty, regardless of its position.

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impl<K, V> ForwardInMemoryCursor<'_, K, V>
where K: PartialOrd + Clone, V: Clone,

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pub fn seek(&mut self, key: &K) -> Option<(K, V)>

Returns the first entry from the current cursor position that’s greater or equal to the provided key. This method advances the cursor forward.

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pub fn first_after(&mut self, key: &K) -> Option<(K, V)>

Returns the first entry from the current cursor position that’s greater than the provided key. This method advances the cursor forward.

Trait Implementations§

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impl<'a, K: Debug, V: Debug> Debug for ForwardInMemoryCursor<'a, K, V>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<'a, K, V> Freeze for ForwardInMemoryCursor<'a, K, V>

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

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

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

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impl<'a, K, V> Unpin for ForwardInMemoryCursor<'a, K, V>

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

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impl<T> Any for T
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Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes