Struct fress::vector::guide::Guide

pub struct Guide {
    pub hash: u32,
    pub is_compact_bit: u32,
    pub count: u32,
    pub prism: AnchoredLine,
    pub root: AnchoredLine,
}

The Guide structure is hydrated from its in-memory representation, 64 bits in length. The top 32 bits contain the hash, the bottom 32 bits contain the collection’s count. The highest order bit of the bottom 32 bits represent whether the representation is compact (no info unit). So a collection’s count resides in the 31 lowest order bits. Top 32 bits [ Hash (32) ] Bottom bits [ Compact? | Count (31) ]

Fields

hash: u32

is_compact_bit: u32

count: u32

prism: AnchoredLine

root: AnchoredLine

Implementations

impl Guide

pub fn units() -> u32

pub fn segment(&self) -> Segment

pub fn set_hash(self, hash: u32) -> Guide

pub fn clear_hash(self) -> Guide

pub fn has_hash(&self) -> bool

pub fn clear_compact(self) -> Guide

pub fn inc_count(self) -> Guide

pub fn dec_count(self) -> Guide

pub fn reroot(self) -> Guide

pub fn hydrate(prism: AnchoredLine) -> Guide

pub fn hydrate_top_bot(prism: AnchoredLine, top: u32, bot: u32) -> Guide

pub fn store_at(&self, prism: AnchoredLine)

pub fn store(self) -> Guide

pub fn store_hash(self) -> Guide

Trait Implementations

impl Clone for Guide

fn clone(&self) -> Guide

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Guide

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

Formats the value using the given formatter.

impl Copy for Guide