Struct BlockMaxPostingListReader 

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

Iterates over a block-max posting list, yielding (DocId, TF) pairs.

Supports block-level skipping via advance_to_block() for WAND optimization.

Implementations

impl<'a> BlockMaxPostingListReader<'a>

pub fn new(data: &'a [u8]) -> Self

pub fn len(&self) -> u32

Number of postings in this list.

pub fn is_empty(&self) -> bool

pub fn num_blocks(&self) -> u16

pub fn block_max_tf(&self, block: u16) -> u16

Max TF for a given block.

pub fn block_last_doc(&self, block: u16) -> u32

Last doc ID in a given block.

pub fn advance_shallow(&mut self, target: DocId)

Position the block pointer at the block containing target without decoding individual postings. Used by WAND to read block_max_tf() for the correct block.

This only updates current_block — it does NOT advance the doc iteration state. Call advance_to_block() for full block skipping.

pub fn advance_to_block(&mut self, target: DocId)

Skip to the first block whose last_doc_id >= target. Positions the reader at the start of that block.

pub fn next(&mut self) -> Option<(DocId, u32)>

Read the next (DocId, TF) pair, or None if exhausted.

pub fn current_block_idx(&self) -> u16

Which block is currently being read.