Struct light_indexed_merkle_tree::zero_copy::IndexedMerkleTreeZeroCopy

pub struct IndexedMerkleTreeZeroCopy<'a, H, I, const HEIGHT: usize>
where
    H: Hasher,
    I: CheckedAdd + CheckedSub + Copy + Clone + PartialOrd + ToBytes + TryFrom<usize> + Unsigned + Pod,
    usize: From<I>,
{
    pub merkle_tree: &'a IndexedMerkleTree<'a, H, I, HEIGHT>,
}

Fields

merkle_tree: &'a IndexedMerkleTree<'a, H, I, HEIGHT>

Implementations

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

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

pub unsafe fn struct_from_bytes_zero_copy( bytes_struct: &'a [u8] ) -> Result<Self, IndexedMerkleTreeError>

Casts a byte slice into wrapped IndexedMerkleTree structure reference, without 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.

pub unsafe fn from_bytes_zero_copy( bytes_struct: &'a [u8], bytes_filled_subtrees: &'a [u8], bytes_changelog: &'a [u8], bytes_roots: &'a [u8], bytes_canopy: &'a [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 IndexedMerkleTreeZeroCopy<'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.