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BranchNodeMasks

reth_trie

Struct BranchNodeMasks 

pub struct BranchNodeMasks {
    pub hash_mask: TrieMask,
    pub tree_mask: TrieMask,
}
Expand description

Branch node masks containing hash_mask and tree_mask.

Consolidates hash_mask and tree_mask into a single struct, reducing HashMap overhead when storing masks by path. Instead of two separate HashMap<Nibbles, TrieMask>, we use a single HashMap<Nibbles, BranchNodeMasks>.

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§hash_mask: TrieMask

Hash mask indicating which children are stored as hashes.

§tree_mask: TrieMask

Tree mask indicating which children are complete subtrees.

Implementations§

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impl BranchNodeMasks

pub fn from_optional( hash_mask: Option<TrieMask>, tree_mask: Option<TrieMask>, ) -> Option<BranchNodeMasks>

Creates masks from optional hash and tree masks.

Returns None if both masks are None, otherwise defaults missing masks to empty.

pub const fn is_empty(&self) -> bool

Returns true if both interior masks are empty.

pub const fn set_child_bits( &mut self, nibble: u8, hash_mask_bit: bool, tree_mask_bit: bool, )

Updates this set of masks for nibble based on that child’s mask bits.

Trait Implementations§

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impl Clone for BranchNodeMasks

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fn clone(&self) -> BranchNodeMasks

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Copy for BranchNodeMasks

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impl Debug for BranchNodeMasks

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

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

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fn default() -> BranchNodeMasks

Returns the “default value” for a type. Read more
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impl Eq for BranchNodeMasks

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impl PartialEq for BranchNodeMasks

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fn eq(&self, other: &BranchNodeMasks) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for BranchNodeMasks

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬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: 4 bytes