reth_trie::trie_cursor

Struct CursorSubNode

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pub struct CursorSubNode {
    pub key: Nibbles,
    pub node: Option<BranchNodeCompact>,
    /* private fields */
}
Expand description

Cursor for iterating over a subtrie.

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§key: Nibbles

The key of the current node.

§node: Option<BranchNodeCompact>

The node itself.

Implementations§

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impl CursorSubNode

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pub fn new(key: Nibbles, node: Option<BranchNodeCompact>) -> Self

Creates a new CursorSubNode from a key and an optional node.

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pub const fn full_key(&self) -> &Nibbles

Returns the full key of the current node.

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pub fn state_flag(&self) -> bool

Returns true if the state flag is set for the current nibble.

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pub fn tree_flag(&self) -> bool

Returns true if the tree flag is set for the current nibble.

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pub fn hash_flag(&self) -> bool

Returns true if the current nibble has a root hash.

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pub fn hash(&self) -> Option<B256>

Returns the root hash of the current node, if it has one.

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pub const fn nibble(&self) -> i8

Returns the next child index to visit.

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pub fn inc_nibble(&mut self)

Increments the nibble index.

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pub fn set_nibble(&mut self, nibble: i8)

Sets the nibble index.

Trait Implementations§

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impl Clone for CursorSubNode

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fn clone(&self) -> CursorSubNode

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for CursorSubNode

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

Formats the value using the given formatter. Read more
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impl Default for CursorSubNode

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl From<CursorSubNode> for StoredSubNode

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fn from(value: CursorSubNode) -> Self

Converts to this type from the input type.
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impl From<StoredSubNode> for CursorSubNode

Implements conversion from StoredSubNode to CursorSubNode.

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fn from(value: StoredSubNode) -> Self

Converts a StoredSubNode into a CursorSubNode.

Extracts necessary values from the StoredSubNode and constructs a corresponding CursorSubNode.

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🔬This is a nightly-only experimental API. (clone_to_uninit #126799)
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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: 216 bytes