Struct LibraryIndex 

pub struct LibraryIndex { /* private fields */ }

Fast lookup from RG tag value to library index.

This provides O(1) library lookup during Decode using string hashing, replacing the O(n) string comparison in the original LibraryLookup.

Implementations

impl LibraryIndex

pub fn from_header(header: &Header) -> Self

Build a library index from a SAM header.

Each unique library name gets a sequential index starting from 0. Index 0 is reserved for “unknown” library.

Panics

Panics if the header contains more than 65,535 distinct libraries.

pub fn get(&self, rg_hash: u64) -> u16

Get the library index for a read group hash.

Returns 0 (unknown) if the RG hash is not found.

pub fn library_name(&self, idx: u16) -> &Arc<str>

Get the library name for an index.

pub fn hash_bytes(bytes: Option<&[u8]>) -> u64

Hash a byte slice using AHash. Returns 0 for None.

This is the single hashing implementation used by all hash_* methods.

pub fn hash_rg(rg_bytes: &[u8]) -> u64

Hash an RG tag value for lookup.

pub fn hash_cell_barcode(cell_bytes: Option<&[u8]>) -> u64

Hash a cell barcode for GroupKey.

pub fn hash_name(name_bytes: Option<&[u8]>) -> u64

Hash a read name for GroupKey.

Trait Implementations

impl Clone for LibraryIndex

fn clone(&self) -> LibraryIndex

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LibraryIndex

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

Formats the value using the given formatter.

impl Default for LibraryIndex

fn default() -> Self

Returns the “default value” for a type.