Struct light_indexed_merkle_tree::copy::IndexedMerkleTreeCopy

pub struct IndexedMerkleTreeCopy<'a, H, I, const HEIGHT: usize>(pub IndexedMerkleTree<'a, H, I, HEIGHT>)
where
    H: Hasher,
    I: CheckedAdd + CheckedSub + Copy + Clone + PartialOrd + ToBytes + TryFrom<usize> + Unsigned + Pod,
    usize: From<I>;

Tuple Fields

0: IndexedMerkleTree<'a, H, I, HEIGHT>

Implementations

impl<'a, H, I, const HEIGHT: usize> IndexedMerkleTreeCopy<'a, H, I, HEIGHT>

where H: Hasher, I: CheckedAdd + CheckedSub + Copy + Clone + PartialOrd + ToBytes + TryFrom<usize> + Unsigned + Pod, usize: From<I>,

pub unsafe fn copy_from_bytes( bytes_struct: &[u8], bytes_filled_subtrees: &[u8], bytes_changelog: &[u8], bytes_roots: &[u8], bytes_canopy: &[u8], bytes_indexed_changelog: &'a [u8] ) -> Result<Self, IndexedMerkleTreeError>

Casts a byte slice into wrapped IndexedMerkleTree structure reference, including dynamic fields.

Purpose

This method is meant to be used mostly in Solana programs, where memory constraints are tight and we want to make sure no data is copied.

Safety

This is highly unsafe. Ensuring the alignment and that the slice provides actual data of the hash set is the caller’s responsibility.

Calling it in async context (or anyhwere where the underlying data can be moved in the memory) is certainly going to cause undefined behavior.

Trait Implementations

impl<'a, H, I, const HEIGHT: usize> Debug for IndexedMerkleTreeCopy<'a, H, I, HEIGHT>

where H: Hasher + Debug, I: CheckedAdd + CheckedSub + Copy + Clone + PartialOrd + ToBytes + TryFrom<usize> + Unsigned + Pod + Debug, usize: From<I>,

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

Formats the value using the given formatter.