Method resolve_or_none

atomic-core/src/change/format_v3/hash_table.rs:382–393

Resolve an index back to its hash, returning an error if not found. This is a convenience method that wraps [`resolve`](Self::resolve) and converts `None` to [`FormatError::HashIndexOutOfBounds`]. Note: This does NOT error on [`HASH_INDEX_NONE`] — that's a valid sentinel value meaning "no hash." Instead, it returns `None` wrapped in `Ok`. Use [`resolve_required`](Self::resolve_required) if the i

(&self, index: HashIndex)

    /// - [`FormatError::HashIndexOutOfBounds`] if the index exceeds the table size
    ///   (and is not `HASH_INDEX_NONE`).
    pub fn resolve_or_none(&self, index: HashIndex) -> FormatResult<Option<&[u8; 32]>> {
        if index == HASH_INDEX_NONE {
            return Ok(None);
        }
        if (index as usize) >= self.hashes.len() {
            return Err(FormatError::HashIndexOutOfBounds {
                index,
                table_size: self.hashes.len() as u16,
            });
        }
        Ok(Some(&self.hashes[index as usize]))
    }

    /// Resolve an index to a hash, erroring if it's `NONE` or out of bounds.
    ///