Struct NameCache 

pub struct NameCache {
    pub entries: Vec<NameEntry>,
    pub map: HashMap<u32, i32>,
}

Name cache for shape and body names. Works with recording. (b3NameCache)

C stores a verstable map as void* map; Rust uses a std HashMap keyed by name id for the same id→entry association. Observable name↔id behavior will match once the logic slice lands.

Fields

entries: Vec<NameEntry>

map: HashMap<u32, i32>

Maps name id → entry index. Id 0 is NULL_NAME and is never inserted.

Implementations

impl NameCache

pub const NULL: u32 = NULL_NAME

Sentinel unused by real names. (B3_NULL_NAME)

pub fn new() -> NameCache

(b3CreateNameCache)

pub fn hash32(data: &[u8]) -> u32

FNV-1a + Murmur3 finalizer. Changing this breaks recordings. (b3Hash32)

pub fn add_name(&mut self, name: &str) -> u32

Insert or look up a name, returning its id. Empty names yield NULL. (b3AddName)

pub fn find_name(&self, id: u32) -> Option<&str>

(b3FindName)

Trait Implementations

impl Clone for NameCache

fn clone(&self) -> NameCache

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NameCache

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

Formats the value using the given formatter.

impl Default for NameCache

fn default() -> NameCache

Returns the “default value” for a type.