Struct SlabView 

pub struct SlabView<'a> { /* private fields */ }

Parsed slab: header + drop records + view onto the solid window.

bytes borrows the underlying slab buffer for lifetime 'a. The plaintext_for accessor returns slices that borrow from bytes, so callers can keep those slices around as long as the slab buffer itself stays alive.

Implementations

impl SlabView<'_>

pub const fn header(&self) -> SlabHeader

The slab header.

pub fn drop_records(&self) -> &[DropRecord]

All drop records in this slab, in declaration order.

pub const fn solid_window_offset(&self) -> usize

Byte offset where the solid window begins (i.e. immediately after the last drop record). Useful for diagnostics.

pub fn find_record(&self, drop_id: &[u8; 32]) -> Option<&DropRecord>

Find a drop record by its DropId. Linear scan.

pub fn plaintext_for( &self, drop_id: &[u8; 32], ) -> Option<Result<Vec<u8>, CoreError>>

Return the plaintext bytes for drop_id, or None if no drop in this slab carries that id.

Supports both store (0x00) and LZ4 (0x01) codecs. LZ4 drops are decompressed on read. Non-plaintext AEADs and non-zero solid_window_index are still rejected (v0.1 limitations).

Returns owned bytes (not a borrowed slice) because LZ4 decompression produces new data that does not live in the slab buffer.

Errors

• CoreError::UnsupportedFeature if the drop uses an unknown codec, a non-plaintext AEAD, or a non-zero solid_window_index.
• CoreError::Corrupt if the slice would extend past the slab or decompression fails.

pub fn plaintext_for_with_dict_lookup( &self, drop_id: &[u8; 32], dict_lookup: &dyn Fn(u8) -> Option<Vec<u8>>, ) -> Option<Result<Vec<u8>, CoreError>>

Same as plaintext_for but with a callback to resolve dict_id → dictionary bytes. Used by SlabStore when the manifest’s dictionary_section is populated. For drops with dict_id == NO_DICT (0xFF), the callback is not consulted.

The callback returns the raw dictionary bytes for the given dict_id, or None if the dict is unknown (which makes the drop undecodable).

pub fn plaintext_range( &self, drop_id: &[u8; 32], off: u64, len: usize, ) -> Option<Result<Vec<u8>, CoreError>>

Decompress only the plaintext bytes at [off, off+len) of drop_id.

Seekable (slab v2) drops decode only the covering container frames — a cold 8 KiB window costs at most one 256 KiB frame. Non-seekable drops decode the full payload and slice (the caller-side cache makes repeat windows cheap; see crate::slab_cache).

Returns None if no drop in this slab carries that id. off + len beyond the drop’s plaintext is Corrupt.

Trait Implementations

impl<'a> Clone for SlabView<'a>

fn clone(&self) -> SlabView<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for SlabView<'a>

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

Formats the value using the given formatter.